/* ============================================================
   ARECH Megamenu block — front-end styles.

   Port of the NAV system in
     prototypes/navbar-explore-2026-05-19/nav-4-megamenu-full.html
   re-tokenized to the theme tokens (main.css :root) and corrected to the
   responsive standard (responsive_manual_en_0.1: min-width ONLY, no
   max-width media queries; canonical container box).

   ALL rules are scoped under `.arech-megamenu` so nothing leaks into the
   theme. The bar links sit inline next to the theme logo (the theme <header>
   provides the sticky surface + blur); only the panels / scrim / overlay are
   position:fixed and anchored at top:var(--header-height).
   ============================================================ */

.arech-megamenu {
    /* slots inline inside the theme's <header> flex row */
    display: contents;
}

/* -------- DESKTOP LINKS -------- */
.arech-megamenu .arech-mm__links {
    display: none;
    flex: 1;
    justify-content: center;
    align-items: center;
    /* Restore the prototype invariant (nav above scrim). The trigger cluster
       shares the .site-header stacking context with the scrim/panel; without a
       local z-index the triggers (z-index:auto) fall under the scrim (z-98).
       position:relative + z-index here lift the triggers above the scrim so a
       stationary cursor on a trigger is never covered. Secondary hardening to
       the scrim-top fix above; together they make the flicker structurally
       impossible. Scoped to the block — `.site-header` (theme-owned) untouched. */
    position: relative;
    z-index: 101;
}
/* Desktop nav reveals at MD/LG 768 to match the prototype (proto L60): tablet
   portrait shows the inline nav + 3-col mega; the 5-col step lands at 1024. */
@media (min-width: 768px) {
    .arech-megamenu .arech-mm__links { display: flex; }
}
.arech-megamenu .arech-mm__links ul {
    display: flex;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}
.arech-megamenu .arech-mm__links > ul > li { position: static; } /* mega spans full width */

.arech-megamenu .arech-mm__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 500;
    color: var(--off-white);
    text-decoration: none;
    background: transparent;
    border: 0;
    cursor: pointer;
    transition: color var(--motion-fast) var(--ease-standard);
}
.arech-megamenu .arech-mm__link:hover,
.arech-megamenu .arech-mm__link:focus-visible { color: var(--orange); }
.arech-megamenu .arech-mm__link:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}
.arech-megamenu .arech-mm__link.is-active { color: var(--orange); }
.arech-megamenu .arech-mm__link.is-active:hover,
.arech-megamenu .arech-mm__link.is-active:focus-visible { color: var(--off-white); }
.arech-megamenu .arech-mm__link[aria-expanded="true"] { color: var(--orange); }
.arech-megamenu .arech-mm__link[aria-expanded="true"]:hover,
.arech-megamenu .arech-mm__link[aria-expanded="true"]:focus-visible { color: var(--off-white); }

.arech-megamenu .arech-mm__chev {
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid currentColor;
    transition: transform var(--motion-fast) var(--ease-standard);
}
.arech-megamenu .arech-mm__link[aria-expanded="true"] .arech-mm__chev { transform: rotate(180deg); }

/* -------- CTA + BURGER -------- */
.arech-megamenu .arech-mm__cta-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-self: end;
}
.arech-megamenu .arech-mm__cta {
    display: none;
    align-items: center;
    min-height: 44px;
    padding: 10px 20px;
    background: var(--orange);
    color: var(--white);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: var(--radius-btn);
    transition: background var(--motion-normal) var(--ease-standard),
                transform var(--motion-normal) var(--ease-standard),
                box-shadow var(--motion-normal) var(--ease-standard);
}
@media (min-width: 768px) {
    .arech-megamenu .arech-mm__cta { display: inline-flex; }
}
.arech-megamenu .arech-mm__cta:hover,
.arech-megamenu .arech-mm__cta:focus-visible {
    background: var(--orange-bright);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px color-mix(in oklch, var(--orange) 35%, transparent);
}

.arech-megamenu .arech-mm__burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: border-color var(--motion-fast) var(--ease-standard);
}
.arech-megamenu .arech-mm__burger:hover,
.arech-megamenu .arech-mm__burger:focus-visible { border-color: var(--orange); }
@media (min-width: 768px) {
    .arech-megamenu .arech-mm__burger { display: none; }
}
.arech-megamenu .arech-mm__burger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--off-white);
    position: relative;
}
.arech-megamenu .arech-mm__burger span::before,
.arech-megamenu .arech-mm__burger span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: var(--off-white);
}
.arech-megamenu .arech-mm__burger span::before { top: -6px; }
.arech-megamenu .arech-mm__burger span::after { top: 6px; }
.arech-megamenu .arech-mm__burger[aria-expanded="true"] span { background: transparent; }
.arech-megamenu .arech-mm__burger[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.arech-megamenu .arech-mm__burger[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* -------- MEGA PANELS (full-width, fixed) -------- */
.arech-megamenu .arech-mm__panel {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    z-index: 99;
    background: color-mix(in oklch, var(--dark) 97%, transparent);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity var(--motion-normal) var(--ease-decelerate),
                transform var(--motion-normal) var(--ease-decelerate);
}
.arech-megamenu .arech-mm__panel.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
/* Canonical container box (S72): gutter on the band, inner caps at --container. */
.arech-megamenu .arech-mm__panel-inner {
    max-width: var(--container);
    margin-inline: auto;
    padding-block: var(--space-7) var(--space-8);
    padding-inline: var(--container-px);
}
.arech-megamenu .arech-mm__eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted-accessible);
    margin-bottom: var(--space-5);
    display: flex;
    align-items: center;
    gap: 12px;
}
.arech-megamenu .arech-mm__eyebrow::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--orange);
}
.arech-megamenu .arech-mm__empty {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--light);
}

/* Products grid — mobile-first min-width steps (prototype used max-width:1100px;
   converted: 1col base → 3col at >=768 → 5col at >=1024 per task spec). */
.arech-megamenu .arech-mm__products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}
@media (min-width: 768px) {
    .arech-megamenu .arech-mm__products-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
    .arech-megamenu .arech-mm__products-grid { grid-template-columns: repeat(5, 1fr); }
}

.arech-megamenu .arech-mm__card {
    display: flex;
    flex-direction: column;
    padding: 20px;
    background: var(--dark-2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-btn);
    text-decoration: none;
    color: inherit;
    transition: background var(--motion-fast) var(--ease-standard),
                border-color var(--motion-fast) var(--ease-standard),
                transform var(--motion-fast) var(--ease-standard);
}
.arech-megamenu .arech-mm__card:hover,
.arech-megamenu .arech-mm__card:focus-visible {
    background: var(--dark-3);
    border-color: var(--orange);
    transform: translateY(-2px);
}
.arech-megamenu .arech-mm__card:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}
.arech-megamenu .arech-mm__card-img {
    aspect-ratio: 16 / 10;
    background: var(--dark-4);
    border: 1px dashed color-mix(in oklch, var(--orange) 40%, transparent);
    border-radius: var(--radius-btn);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.15em;
    color: var(--muted-accessible);
    text-transform: uppercase;
}
.arech-megamenu .arech-mm__card-img--photo {
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.05);
    /* Transparent: product photos are transparent PNG/WebP, so they sit on the
       mega panel's dark background, not inside a filled box. */
    background: transparent;
}
.arech-megamenu .arech-mm__card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}
.arech-megamenu .arech-mm__card-title {
    font-family: var(--font-headline);
    font-weight: 600;
    font-size: 18px;
    color: var(--off-white);
    margin-bottom: 6px;
}
.arech-megamenu .arech-mm__card-body {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.5;
    color: var(--light);
}

/* About grid — same min-width step strategy. */
.arech-megamenu .arech-mm__about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}
@media (min-width: 768px) {
    .arech-megamenu .arech-mm__about-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
    .arech-megamenu .arech-mm__about-grid { grid-template-columns: repeat(5, 1fr); }
}
.arech-megamenu .arech-mm__about-link {
    display: flex;
    flex-direction: column;
    padding: 16px 12px;
    text-decoration: none;
    color: inherit;
    border-left: 2px solid transparent;
    transition: border-color var(--motion-fast) var(--ease-standard),
                background var(--motion-fast) var(--ease-standard);
}
.arech-megamenu .arech-mm__about-link:hover,
.arech-megamenu .arech-mm__about-link:focus-visible {
    border-left-color: var(--orange);
    background: color-mix(in oklch, var(--orange) 4%, transparent);
}
.arech-megamenu .arech-mm__about-link:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}
.arech-megamenu .arech-mm__about-title {
    font-family: var(--font-headline);
    font-weight: 600;
    font-size: 15px;
    color: var(--off-white);
    margin-bottom: 4px;
}
.arech-megamenu .arech-mm__about-desc {
    font-family: var(--font-body);
    font-size: 12px;
    line-height: 1.5;
    color: var(--light);
}

/* -------- SCRIM -------- */
/* ROOT-CAUSE FIX (S74 flicker): the scrim must NEVER cover the nav band.
   Triggers live inside the theme's `.site-header` (a sticky z-index:100 stacking
   context); the scrim + panel are children of that same header, so the scrim's
   local z-index:98 sits ABOVE the triggers (which have z-index:auto). With the
   old `inset:0` the scrim therefore covered the trigger row at y=40, stealing the
   hover off the trigger → mouseleave → close → mouseenter → open → flicker
   (rendered-DOM proof: elementFromPoint(533,40) returned `.arech-mm__scrim`).
   Anchoring the scrim's top at the header height removes the cause: triggers are
   never under the scrim regardless of stacking context, and visually the dim
   correctly begins below the crisp top nav (matches the prototype intent —
   nothing to dim behind a top-anchored nav). Belt-and-braces with the trigger
   z-index lift below (restores the prototype's z-100-nav > z-98-scrim invariant). */
.arech-megamenu .arech-mm__scrim {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 98;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-normal) var(--ease-standard);
}
.arech-megamenu .arech-mm__scrim.is-open {
    opacity: 1;
    pointer-events: auto;
}

/* -------- MOBILE OVERLAY -------- */
.arech-megamenu .arech-mm__overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: color-mix(in oklch, var(--dark) 98%, transparent);
    backdrop-filter: blur(30px) saturate(1.4);
    -webkit-backdrop-filter: blur(30px) saturate(1.4);
    display: flex;
    flex-direction: column;
    padding: var(--container-px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-normal) var(--ease-standard);
    overflow-y: auto;
}
.arech-megamenu .arech-mm__overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}
.arech-megamenu .arech-mm__overlay-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
}
.arech-megamenu .arech-mm__overlay-brand {
    display: block;
    height: 32px;
    width: auto;
}
.arech-megamenu .arech-mm__overlay-close {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-btn);
    cursor: pointer;
    color: var(--off-white);
    font-family: var(--font-mono);
    font-size: 22px;
    line-height: 1;
}
.arech-megamenu .arech-mm__overlay-close:hover,
.arech-megamenu .arech-mm__overlay-close:focus-visible { border-color: var(--orange); }
.arech-megamenu .arech-mm__overlay-links {
    list-style: none;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-5) var(--space-2);
}
.arech-megamenu .arech-mm__overlay-link {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(18px, 4.5vw, 21px);
    font-weight: 700;
    color: var(--off-white);
    text-decoration: none;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.arech-megamenu .arech-mm__overlay-link:hover { color: var(--orange); }
.arech-megamenu .arech-mm__overlay-link.is-active { color: var(--orange); }

.arech-megamenu .arech-mm__overlay-acc {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-display);
    font-size: clamp(18px, 4.5vw, 21px);
    font-weight: 700;
    color: var(--off-white);
    text-decoration: none;
    padding: 14px 0;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: transparent;
    width: 100%;
    min-height: 44px;
    cursor: pointer;
}
.arech-megamenu .arech-mm__overlay-acc[aria-expanded="true"] { color: var(--orange); }
.arech-megamenu .arech-mm__overlay-acc[aria-expanded="true"] .arech-mm__overlay-acc-icon { transform: rotate(45deg); }
.arech-megamenu .arech-mm__overlay-acc-icon {
    display: inline-block;
    transition: transform var(--motion-fast) var(--ease-standard);
}
.arech-megamenu .arech-mm__overlay-acc-body {
    display: none;
    padding: 12px 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.arech-megamenu .arech-mm__overlay-acc-body.is-open {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.arech-megamenu .arech-mm__overlay-acc-body a {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--light);
    text-decoration: none;
    padding: 8px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
}
.arech-megamenu .arech-mm__overlay-acc-body a:hover { color: var(--orange); }
.arech-megamenu .arech-mm__overlay-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    background: var(--orange);
    color: var(--white);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: var(--radius-btn);
    margin-top: var(--space-5);
}
.arech-megamenu .arech-mm__overlay-cta:hover,
.arech-megamenu .arech-mm__overlay-cta:focus-visible { background: var(--orange-bright); }

/* -------- REDUCED MOTION (mandatory) -------- */
@media (prefers-reduced-motion: reduce) {
    .arech-megamenu .arech-mm__panel,
    .arech-megamenu .arech-mm__scrim,
    .arech-megamenu .arech-mm__overlay,
    .arech-megamenu .arech-mm__chev,
    .arech-megamenu .arech-mm__card,
    .arech-megamenu .arech-mm__about-link,
    .arech-megamenu .arech-mm__cta,
    .arech-megamenu .arech-mm__overlay-acc-icon,
    .arech-megamenu .arech-mm__link {
        transition: none !important;
    }
}


/* ============================================================================
   TDM Blocks — design tokens (--tdm-* namespace)

   The package ships its OWN token set so it works standalone on any Concrete
   site. Blocks NEVER hard-code values — they reference var(--tdm-*). The Brand
   Kit dashboard overrides any of these at :root per site, re-skinning every
   block at once.

   Defaults below are seeded from the ARECH design-system-v1 (dark theme) as
   the first consumer; on a new site, set the Brand Kit and these are replaced.
   On ARECH you may also map a token to the live theme variable, e.g.
   `--tdm-color-accent: var(--orange);` so the library tracks the theme.
   ============================================================================ */

:root {
  /* --- Palette -------------------------------------------------------------
     ink = text on surface; surface = block background; accent = CTA/links. */
  --tdm-color-ink:          #F5F4F0;   /* primary text  (ARECH --off-white) */
  --tdm-color-ink-2:        #B0B0BA;   /* secondary     (ARECH --light)     */
  --tdm-color-ink-3:        #6B6B75;   /* tertiary/meta (ARECH --muted)     */
  --tdm-color-surface:      #0D0D0F;   /* base bg       (ARECH --dark)      */
  --tdm-color-surface-2:    #141416;   /* raised bg                          */
  --tdm-color-surface-3:    #1C1C20;   /* card bg                            */
  --tdm-color-accent:       #E8651A;   /* primary accent FILL: chips, dots, arrows, borders, focus glow, accent-as-text on dark (ARECH --orange). UNCHANGED — do NOT repoint. */
  --tdm-color-accent-hover: #FF7A2F;
  --tdm-color-accent-active:#C4510E;
  --tdm-color-on-accent:    #FFFFFF;   /* text ON a button fill (white label) */

  /* --- Primary-button FILL (AA-safe, band-independent) ---------------------
     White (#FFFFFF) on brand orange #E8651A is only 3.33:1 — FAIL for the 15px
     button label (AA needs 4.5:1). The button fill is its OWN accent, separate
     from --tdm-color-accent: ONLY the solid/primary button BACKGROUND points
     here, so chips/dots/arrows/borders/accent-text keep brand orange #E8651A.
     The pair is band-independent (label-vs-fill is internal to the button), so
     one stable fill works on both light and dark bands.
     AA (white #FFFFFF, WCAG2): rest #B0470B = 5.60:1 · hover = 6.80:1 ·
     active = 8.25:1 — all PASS 4.5:1 AA for the 15px label. */
  --tdm-color-btn-fill:        #B0470B;
  --tdm-color-btn-fill-hover:  color-mix(in srgb, var(--tdm-color-btn-fill) 88%, #000);  /* ≈ #9B3E0A, white 6.80:1 PASS */
  --tdm-color-btn-fill-active: color-mix(in srgb, var(--tdm-color-btn-fill) 76%, #000);  /* ≈ #863609, white 8.25:1 PASS */
  /* Accent used AS TEXT (links, eyebrow accents, accent spans). On a DARK band
     this equals --tdm-color-accent (#E8651A reads AA on dark, 5.74:1). The
     base.css [data-band="light"] hook remaps the per-instance --tdmx-accent-text
     to --tdm-color-accent-text-light on a cream band, where #E8651A fails AA
     (2.8–3.0:1). FILL usages keep --tdm-color-accent and never flip. */
  --tdm-color-accent-text:       var(--tdm-color-accent);   /* dark-band: orange */
  --tdm-color-accent-text-light: #B0470B;   /* light-band link/text accent (ARECH --orange-link): 5.65:1 on paper-0, 5.09:1 on paper-1, 4.65:1 on paper-2 = AA body PASS on all creams (colorist-verified, strict WCAG) */

  /* Hairline via color-mix so it tracks ink on any surface. */
  --tdm-hairline: color-mix(in srgb, var(--tdm-color-ink) 14%, transparent);

  /* --- Fonts (self-hosted by the theme; package only references families) - */
  --tdm-font-display:  "Geist", system-ui, sans-serif;
  --tdm-font-headline: "General Sans", Inter, system-ui, sans-serif;
  --tdm-font-body:     "DM Sans", system-ui, sans-serif;
  /* Label / eyebrow / caption voice. DM Mono retired 2026-06-02 site-wide;
     aligned to General Sans to match the theme's --font-mono (S80). */
  --tdm-font-mono:     "General Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

  /* --- Type scale (fluid clamp; never a fixed px in a media query) -------- */
  --tdm-text-h1:      clamp(48px, 6vw, 88px);
  --tdm-text-h2:      clamp(42px, 5vw, 72px);
  --tdm-text-h3:      clamp(28px, 3vw, 36px);
  --tdm-text-h4:      20px;
  --tdm-text-h5:      16px;
  --tdm-text-body:    16px;
  --tdm-text-body-sm: 14px;
  --tdm-text-eyebrow: 11px;
  --tdm-text-caption: 12px;

  --tdm-weight-display:  700;
  --tdm-weight-headline: 600;
  --tdm-weight-body:     400;

  --tdm-leading-tight: 1.1;
  --tdm-leading-snug:  1.3;
  --tdm-leading-body:  1.65;

  /* --- Spacing scale (4px base — matches ARECH --space-1..11) ------------- */
  --tdm-space-1:  4px;
  --tdm-space-2:  8px;
  --tdm-space-3:  12px;
  --tdm-space-4:  16px;
  --tdm-space-5:  24px;
  --tdm-space-6:  32px;
  --tdm-space-7:  48px;
  --tdm-space-8:  64px;
  --tdm-space-9:  96px;
  --tdm-space-10: 128px;
  --tdm-space-11: 160px;

  /* --- Containers (single uniform container — ARECH responsive manual) ---- */
  --tdm-container:        1200px;  /* caps identically across hero/body/footer */
  --tdm-container-narrow: 720px;
  --tdm-gutter:           16px;    /* steps up at breakpoints in base.css      */

  /* --- Radius (cap 6px on cards per ARECH rule; pill only where allowed) -- */
  --tdm-radius-sm:   4px;
  --tdm-radius-md:   6px;
  --tdm-radius-lg:   12px;
  --tdm-radius-pill: 999px;
  --tdm-radius-btn:  2px;   /* flat action buttons (ARECH FIX-1) */

  /* --- Shadow presets ----------------------------------------------------- */
  --tdm-shadow-sm: 0 1px 2px color-mix(in srgb, #000 30%, transparent);
  --tdm-shadow-md: 0 4px 16px color-mix(in srgb, #000 35%, transparent);
  --tdm-shadow-lg: 0 12px 40px color-mix(in srgb, #000 45%, transparent);

  /* --- Motion (composite-only; respect reduced-motion in base.css) -------- */
  --tdm-dur-fast:  150ms;
  --tdm-dur-base:  250ms;
  --tdm-dur-slow:  400ms;
  --tdm-ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1);
  --tdm-ease-emphatic: cubic-bezier(0.16, 1, 0.3, 1);
}


/* ============================================================================
   TDM Blocks — scoped base layer (.tdm-*)

   Scoped under .tdm-* so nothing leaks into the host theme. Provides:
   - the shared block wrapper that consumes per-instance --tdmx-* variables
     (emitted by CssEmitter into a `.tdm-i-<bID>` rule);
   - the uniform container + responsive gutter (ARECH responsive manual);
   - alignment + background plumbing;
   - the mandatory prefers-reduced-motion branch.

   Per-instance variables (set by CssEmitter, fall back to global --tdm-* tokens):
     --tdmx-pad-top/right/bottom/left, --tdmx-margin-top/bottom, --tdmx-gap,
     --tdmx-text, --tdmx-heading, --tdmx-accent, --tdmx-align, --tdmx-max-width,
     --tdmx-bg, --tdmx-radius, --tdmx-border, --tdmx-shadow, --tdmx-font-heading,
     --tdmx-font-body.
   ============================================================================ */

.tdm-block {
  --tdmx-pad-top:    var(--tdm-space-9);
  --tdmx-pad-right:  0px;
  --tdmx-pad-bottom: var(--tdm-space-9);
  --tdmx-pad-left:   0px;
  --tdmx-margin-top: 0px;
  --tdmx-margin-bottom: 0px;
  --tdmx-gap:        var(--tdm-space-5);
  --tdmx-text:       var(--tdm-color-ink);
  --tdmx-heading:    var(--tdm-color-ink);
  --tdmx-accent:     var(--tdm-color-accent);
  /* Accent split into two roles so a light band can re-tone TEXT without ever
     touching FILLS (S106-class fix). --tdmx-accent = the orange FILL (CTA bg,
     chips, borders, glow) — NEVER flipped. --tdmx-accent-text = accent used as
     TEXT (links, eyebrow accents, accent spans) — defaults to --tdmx-accent so
     it tracks any operator accent override, and is the ONLY accent var the
     [data-band="light"] hook remaps (to --orange-link, AA on cream). */
  --tdmx-accent-text: var(--tdmx-accent);
  --tdmx-align:      left;
  --tdmx-max-width:  var(--tdm-container);
  --tdmx-bg:         transparent;
  --tdmx-radius:     0px;
  --tdmx-border:     0 solid transparent;
  --tdmx-shadow:     none;
  --tdmx-font-heading: var(--tdm-font-headline);
  --tdmx-font-body:    var(--tdm-font-body);

  padding: var(--tdmx-pad-top) var(--tdmx-pad-right) var(--tdmx-pad-bottom) var(--tdmx-pad-left);
  margin-block: var(--tdmx-margin-top) var(--tdmx-margin-bottom);
  /* Band pattern by default, contained mode on demand.
     - 'full' (default, no var emitted): max-width:none + margin-inline:0 =>
       the block fills its parent => FULL-BLEED background (the band).
     - 'contained' (PHP emits --tdmx-block-max:var(--tdm-container) and
       --tdmx-block-mi:auto): the whole block (bg + inner) is capped at 1200
       and centred. The ::before/::after image+overlay are inset:0 of this box,
       so they follow the contained box automatically. */
  /* 'window' bg_width (S129) emits --tdmx-block-w:100vw to break the block out
     to the viewport; default 'auto' = byte-identical (block-level fills parent). */
  width: var(--tdmx-block-w, auto);
  max-width: var(--tdmx-block-max, none);
  margin-inline: var(--tdmx-block-mi, 0);
  background: var(--tdmx-bg);
  color: var(--tdmx-text);
  border: var(--tdmx-border);
  border-radius: var(--tdmx-radius);
  box-shadow: var(--tdmx-shadow);
  font-family: var(--tdmx-font-body);
  position: relative;
  isolation: isolate;
}

/* ── Universal band tone (spec §1b / §1e — cascade layer `base`) ────────────
   ONE place that re-tones EVERY .tdm-block for a light or dark band, replacing
   the per-block [data-band] ink hooks. The view emits data-band only when the
   band resolves to LIGHT (auto-detected light solid bg, or d_band=light) or to
   a FORCED dark (d_band=dark on an unknown image/gradient bg). Default
   (dark-first site, no attribute) is byte-identical to today.

   Flips ONLY the two universal ink vars (--tdmx-heading / --tdmx-text) that
   Family-A blocks consume; accent (orange) is intentionally untouched — it
   reads AA on both cream and dark. Ink-on-light is derived from the surface
   token via color-mix (no magic hex):
     heading = full surface ink (#0D0D0F-equivalent, ~16:1 on cream)
     body    = surface 78%      (mirrors the S106-tuned value, ~7:1 on cream)
   No !important; single attribute-selector specificity so an explicit
   per-instance .tdm-i-<bID> colour rule from CssEmitter still wins.
   The 13 Family-B blocks (which read the never-assigned --tdmx-*-color suffix)
   add their own [data-band="light"] remap in their view.css — see spec §1e. */
.tdm-block[data-band="light"] {
  --tdmx-heading: var(--tdm-color-surface);                               /* #0D0D0F ink */
  --tdmx-text:    color-mix(in srgb, var(--tdm-color-surface) 78%, transparent);
  /* Accent-as-TEXT remap (S106-class fix): #E8651A orange fails AA as text on a
     cream band (2.8–3.0:1). Flip ONLY the text accent to --tdm-color-accent-text-light
     (#B0470B = 5.09:1 on paper-0/1/2 = AA body). FILL accent (--tdmx-accent) is
     untouched, so orange CTA buttons / chips / borders + their white text stay #E8651A. */
  --tdmx-accent-text: var(--tdm-color-accent-text-light);
}
/* Forced dark band (d_band=dark) — restores the dark-first ink explicitly so a
   block placed on a dark image/gradient (where auto-luminance can't read a hex)
   is guaranteed legible-light, even if some ancestor set a light tone. */
.tdm-block[data-band="dark"] {
  --tdmx-heading: var(--tdm-color-ink);                                   /* #F5F4F0 */
  --tdmx-text:    var(--tdm-color-ink-2);                                 /* #B0B0BA */
  --tdmx-accent-text: var(--tdmx-accent);                                 /* orange — AA on dark (5.74:1) */
}

/* Per-handle band-padding fallback for the composite containers (Bug 3c).
   tdm_columns emits design vars change-only, so a container left at its new
   smaller default emits NOTHING and would otherwise fall back to the global
   --tdmx-pad-* (space-9 = 96px). Pin the fallback to the same new default
   (space-6 = 32px) declared in DesignControls::DEFAULT_OVERRIDES so a fresh
   container is a tight band and "default == fallback" stays consistent.
   tdm_section emits all vars (changedOnly=false) so this is a harmless safety
   net for it; an emitted var always wins over this fallback. */
.tdm-columns, .tdm-section {
  --tdmx-pad-top:    var(--tdm-space-6);
  --tdmx-pad-bottom: var(--tdm-space-6);
}

/* Universal background image + overlay via pseudo-elements — driven purely by
   the emitted --tdmx-bg-image / --tdmx-overlay vars, so EVERY block supports a
   background image with overlay without any per-view markup. When the vars are
   unset (no image chosen) they fall back to none/transparent (invisible). */
.tdm-block::after {            /* image layer, behind everything */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: var(--tdmx-bg-image, none);
  background-size: cover;
  background-position: center;
  pointer-events: none;
}
.tdm-block::before {           /* overlay, above image, below content */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--tdmx-overlay, transparent);
  pointer-events: none;
}
/* Legacy explicit layers (section/hero/cta views) — now redundant no-ops. */
.tdm-block__bg, .tdm-block__overlay { display: none; }

/* ── Edit-mode SubArea editability fix (Bug 3b) ────────────────────────────
   On container blocks (tdm_section / tdm_columns) `isolation: isolate` creates
   a stacking context that traps Concrete's in-context edit overlays (move/edit
   grips) of the INNER SubArea blocks beneath the parent block's UI, leaving
   only the parent editable. In edit mode ONLY, drop the isolation on the
   containers and suppress the negative-z background pseudo-elements so the
   inner block handles can stack above. Anonymous (non-edit) output is
   unaffected: front-end pages have no `.ccm-edit-mode` class, so these rules
   never match → render is byte-identical. */
.ccm-edit-mode .tdm-section,
.ccm-edit-mode .tdm-columns,
.ccm-edit-mode .tdm-block__inner .tdm-block { isolation: auto; }   /* S94: un-isolate NESTED children too — S88 reset only the outer containers, so a 2nd isolated child in a column trapped its own edit overlay → only the parent stayed editable */
.ccm-edit-mode .tdm-section::before,
.ccm-edit-mode .tdm-section::after,
.ccm-edit-mode .tdm-columns::before,
.ccm-edit-mode .tdm-columns::after { display: none; }

/* Inner = the container. Single uniform width, responsive gutter. */
.tdm-block__inner {
  width: 100%;
  max-width: var(--tdmx-max-width);
  margin-inline: auto;
  /* 'window' bg_width (S129) emits --tdmx-inner-pad:0 to drop the gutter so the
     content spans the viewport edge-to-edge; default = the responsive gutter. */
  padding-inline: var(--tdmx-inner-pad, var(--tdm-gutter));
  text-align: var(--tdmx-align);
}

/* ── Nesting anti-compounding (Bug 3c) ─────────────────────────────────────
   Real DOM (verified from tdm_section/view.php & tdm_columns/view.php):
     tdm_section:  .tdm-section > .tdm-block__inner > [SubArea] > .tdm-block
     tdm_columns:  .tdm-columns > .tdm-block__inner > .tdm-columns__grid
                     > .tdm-columns__col > [SubArea] > .tdm-block
   A child .tdm-block inside a container's inner/column carries its own space-9
   band by default → paddings add (padding never collapses) → ~192px double band
   when nested. Zero the nested child's vertical band padding; the outer
   container owns the band. (Inline padding-inline is the gutter, suppressed on
   nested inner wrappers below.) These selectors only match the real nesting
   chains — top-level blocks on a normal page are unaffected → byte-identical. */
/* Bug-3c anti-compounding, fixed (S117): zero the nested child's DEFAULT band
   via the per-instance VARIABLE (not a hard longhand), so an operator's
   explicit per-instance pad — emitted at equal specificity on
   `.tdm-block.tdm-i-<bID>` (CssEmitter) and printed after this sheet — still
   wins on source order. A nested block left at default has no per-instance pad
   var, so this 0 holds → single band, no 192px compounding. */
.tdm-block__inner .tdm-block {
  --tdmx-pad-top: 0px;
  --tdmx-pad-bottom: 0px;
  /* S129: custom properties inherit, so a child block inside a 'window'
     (edge-to-edge) parent would otherwise inherit the 100vw breakout vars and
     blow itself out to the viewport. Reset the two harmful breakout vars to
     their defaults on every nested block (byte-identical for non-window trees).
     A nested block that is ITSELF set to 'window' re-emits these on its own
     higher-specificity .tdm-i-<bID> rule, which is printed after this sheet. */
  --tdmx-block-w: auto;
  --tdmx-block-mi: 0;
}
.tdm-block__inner .tdm-block__inner {
  padding-inline: 0;
}

.tdm-block h1, .tdm-block h2, .tdm-block h3,
.tdm-block h4, .tdm-block h5, .tdm-block h6 {
  color: var(--tdmx-heading);
  font-family: var(--tdmx-font-heading);
}

.tdm-block img { max-width: 100%; height: auto; display: block; }

/* Responsive gutter — min-width only (ARECH responsive manual). */
@media (min-width: 680px)  { :root { --tdm-gutter: 20px; } }
@media (min-width: 768px)  { :root { --tdm-gutter: 24px; } }
@media (min-width: 1024px) { :root { --tdm-gutter: 32px; --tdm-container: 1140px; } }
@media (min-width: 1440px) { :root { --tdm-gutter: 40px; --tdm-container: 1200px; } }

/* Shared action buttons (flat radius per ARECH; ≥44px touch target). */
.tdm-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 var(--tdm-space-6);
  border-radius: var(--tdm-radius-btn); border: 1px solid transparent;
  font-family: var(--tdm-font-headline); font-weight: var(--tdm-weight-headline);
  font-size: var(--tdm-text-body-sm); text-decoration: none; cursor: pointer;
  transition: background var(--tdm-dur-fast) var(--tdm-ease-standard),
              color var(--tdm-dur-fast) var(--tdm-ease-standard),
              border-color var(--tdm-dur-fast) var(--tdm-ease-standard);
}
/* Primary button FILL points at the AA-safe button-fill token (white label on
   #B0470B = 5.60:1), NOT --tdmx-accent — so chips/dots/borders keep brand orange.
   The fill is band-independent (label-vs-fill is internal). */
.tdm-btn--primary { background: var(--tdm-color-btn-fill); color: var(--tdm-color-on-accent); }
.tdm-btn--primary:hover { background: var(--tdm-color-btn-fill-hover); color: var(--tdm-color-on-accent); }
.tdm-btn--ghost { background: transparent; color: var(--tdmx-text, var(--tdm-color-ink));
  border-color: color-mix(in srgb, var(--tdmx-text, var(--tdm-color-ink)) 35%, transparent); }
.tdm-btn--ghost:hover { border-color: var(--tdmx-accent, var(--tdm-color-accent)); color: var(--tdmx-accent-text, var(--tdm-color-accent)); }
@media (prefers-reduced-motion: reduce) { .tdm-btn { transition: none; } }

/* Hover effects (composite-only). */
.tdm-hover-lift  { transition: transform var(--tdm-dur-base) var(--tdm-ease-standard); }
.tdm-hover-lift:hover  { transform: translateY(-4px); }
.tdm-hover-scale { transition: transform var(--tdm-dur-base) var(--tdm-ease-standard); }
.tdm-hover-scale:hover { transform: scale(1.02); }
.tdm-hover-glow  { transition: box-shadow var(--tdm-dur-base) var(--tdm-ease-standard); }
.tdm-hover-glow:hover  { box-shadow: 0 0 0 1px var(--tdmx-accent), var(--tdm-shadow-md); }

/* Entrance reveal (one per block; JS adds .is-in when in view). */
.tdm-reveal { opacity: 0; transition: opacity var(--tdm-dur-slow) var(--tdm-ease-emphatic),
                                       transform var(--tdm-dur-slow) var(--tdm-ease-emphatic); }
.tdm-reveal.fade-up    { transform: translateY(24px); }
.tdm-reveal.slide-left { transform: translateX(24px); }
.tdm-reveal.is-in      { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .tdm-hover-lift, .tdm-hover-scale, .tdm-hover-glow,
  .tdm-reveal { transition: none !important; transform: none !important; }
  .tdm-reveal { opacity: 1 !important; }
}


/* ============================================================
   ARECH Subpage Hero — Product LED (block-06) view.css
   Port of /prototypes/subpage-header-explore-2026-05-20/header-2-product-led.html
   BEM-renamed `.arech-sphpl__*`. All tokens from design-system-v1.md.
   ============================================================ */

.arech-sphpl {
    position: relative;
    background-color: var(--tdmx-bg, var(--dark));
    color: var(--off-white);
    overflow: hidden;
    padding-block: var(--tdmx-pad-top, var(--space-10)) var(--tdmx-pad-bottom, var(--space-9));
    padding-inline: var(--container-px);
    margin-block: var(--tdmx-margin-top, 0px) var(--tdmx-margin-bottom, 0px);
    container-type: inline-size;
}

/* ---------- Background layers (ambient grid drift + radial glow) ---------- */
.arech-sphpl__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.arech-sphpl__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, color-mix(in oklch, var(--orange) 6%, transparent) 1px, transparent 1px),
        linear-gradient(to bottom, color-mix(in oklch, var(--orange) 6%, transparent) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 100% 80% at 30% 40%, var(--dark) 0%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse 100% 80% at 30% 40%, var(--dark) 0%, transparent 85%);
    animation: arechSphplGrid 22s linear infinite;
}

@keyframes arechSphplGrid {
    0%   { transform: translateY(0); }
    100% { transform: translateY(60px); }
}

.arech-sphpl__glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse 80% 60% at 70% 30%,
        color-mix(in oklch, var(--orange) 14%, transparent) 0%,
        transparent 60%
    );
}

/* ---------- Inner content grid ---------- */
.arech-sphpl__inner {
    position: relative;
    z-index: 1;
    /* S72 canonical multi-element box: gutter on the band (.arech-sphpl),
       inner capped at --container, no inner padding. Renders identically
       to the prior calc() form. */
    max-width: var(--tdmx-max-width, var(--container));
    margin-inline: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-7);
    align-items: center;
}

@container (min-width: 1024px) {
    .arech-sphpl--image-right .arech-sphpl__inner {
        grid-template-columns: 1.1fr 1fr;
    }
}

/* ---------- Copy column ---------- */
.arech-sphpl__copy {
    max-width: 60ch;
    text-align: var(--tdmx-align, left);
}

.arech-sphpl__eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--tdmx-accent, var(--orange));
    margin: 0 0 var(--space-4);
}

.arech-sphpl__h1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(36px, 5.5vw, 72px);
    line-height: 1.02;
    letter-spacing: -0.015em;
    color: var(--tdmx-heading, var(--off-white));
    margin: 0 0 var(--space-5);
}

.arech-sphpl__h1-line {
    display: block;
}

.arech-sphpl__h1-line--accent {
    color: var(--tdmx-accent, var(--orange));
}

.arech-sphpl__sub {
    font-family: var(--font-body);
    font-size: clamp(15px, 1.4vw, 18px);
    line-height: 1.6;
    color: var(--tdmx-text, var(--light, var(--off-white)));
    margin: 0 0 var(--space-6);
    max-width: 50ch;
    opacity: 0.88;
}

/* ---------- Spec callout chips ---------- */
.arech-sphpl__chips {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4) var(--space-5);
    margin: 0 0 var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid color-mix(in oklch, var(--off-white) 6%, transparent);
}

@container (min-width: 480px) {
    .arech-sphpl__chips { grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
}

.arech-sphpl__chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-1);
    margin: 0;
}

.arech-sphpl__chip-label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--tdmx-text, var(--muted-accessible));
    margin: 0;
}

.arech-sphpl__chip-value {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(15px, 1.4vw, 19px);
    line-height: 1.15;
    color: var(--tdmx-heading, var(--off-white));
    margin: 0;
}

/* ---------- CTAs ---------- */
.arech-sphpl__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

/* ---------- Media column ---------- */
.arech-sphpl__media {
    position: relative;
    aspect-ratio: 4 / 3;
    /* Per-image radius preset (S89): operator-set --arech-img-radius wins;
       default keeps the original --radius-sm → byte-identical. Lands on the
       media frame only, never the hero section / grid / glow layers. */
    border-radius: var(--arech-img-radius, var(--radius-sm));
    overflow: hidden;
    /* No background fill: product photos are transparent PNG/WebP, so the
       cabinet floats on the hero's dark background instead of inside a box.
       contain (below) keeps the whole product visible, never cropped. */
}

.arech-sphpl__pic,
.arech-sphpl__pic img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.arech-sphpl__media-placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--muted-accessible);
    background-color: var(--dark-2);
}

.arech-sphpl__media-placeholder-label {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ---------- Variant: image-bottom (stack) ---------- */
@container (min-width: 1024px) {
    .arech-sphpl--image-bottom .arech-sphpl__inner {
        grid-template-columns: 1fr;
    }
    .arech-sphpl--image-bottom .arech-sphpl__media {
        max-width: 720px;
        margin-inline: auto;
    }
}

/* ---------- Reduced-motion: kill grid drift ---------- */
@media (prefers-reduced-motion: reduce) {
    .arech-sphpl__grid { animation: none; }
}

/* ---------- Concrete edit-mode shim ---------- */
.ccm-edit-mode .arech-sphpl { padding-block: var(--space-7) var(--space-6); }
.ccm-edit-mode .arech-sphpl__grid { animation: none; opacity: 0.35; }

/* ---------- Print ---------- */
@media print {
    .arech-sphpl { background: #fff !important; color: #000 !important; padding-block: var(--space-5); }
    .arech-sphpl__bg { display: none; }
    .arech-sphpl__h1-line--accent { color: #000 !important; }
}


/* ======================================================================
   TDM Text — formatted paragraph block.
   Tokens come from the package tokens.css (--tdm-*). Design-controlled props
   consume var(--tdmx-*, <fallback>) so a control left at its default keeps the
   fallback (emit-only-on-change). Namespaced .tdm-text__* / .tdm-text classes
   only — do NOT reuse the package-global .reveal class for any hook.

   The .tdm-block wrapper (base.css) already drives outer padding/margin,
   max-width, alignment, background, heading colour + heading font. This file
   styles the rich-text body: real paragraph rhythm (one <p> per Enter), lists,
   inline links + bold/italic, and on-brand sub-headings (h2..h4) inside the
   body. Heading colour is set EXPLICITLY here (token) to defeat the known
   global main.css heading-colour trap that defeats container inheritance.
   ====================================================================== */

.tdm-text__body {
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  line-height: 1.6;
  color: var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA));
}

/* ---------- Paragraph rhythm (the whole point of this block) ---------- */
/* Each Enter in the editor emits a real <p>; give a clear inter-paragraph
   gap, driven by the Design `gap` var, and drop the trailing margin so the
   block's own padding controls the bottom edge. */
.tdm-text__body p {
  margin-block: 0 0 var(--tdmx-gap, var(--tdm-space-5, 24px));
}
.tdm-text__body > :last-child {
  margin-bottom: 0;
}

/* ---------- Sub-headings inside the rich text ---------- */
/* Set colour explicitly (token, not "inherit-by-accident") to defeat the
   global main.css h1..h6 colour rule that otherwise overrides container
   inheritance on light/paper themes. */
.tdm-text__body h2,
.tdm-text__body h3,
.tdm-text__body h4 {
  margin: var(--tdm-space-7, 40px) 0 var(--tdm-space-4, 16px);
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, "General Sans", system-ui, sans-serif));
  font-weight: var(--tdm-weight-headline, 600);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
  text-wrap: balance;
}
.tdm-text__body h2 { font-size: var(--tdm-text-h3, clamp(28px, 3vw, 36px)); }
.tdm-text__body h3 { font-size: var(--tdm-text-h4, 20px); }
.tdm-text__body h4 { font-size: var(--tdm-text-body, 16px); text-transform: uppercase; letter-spacing: 0.08em; }
/* No top margin on the very first heading so it aligns to the block top edge. */
.tdm-text__body > h2:first-child,
.tdm-text__body > h3:first-child,
.tdm-text__body > h4:first-child {
  margin-top: 0;
}

/* ---------- Lists ---------- */
.tdm-text__body ul,
.tdm-text__body ol {
  margin-block: 0 0 var(--tdmx-gap, var(--tdm-space-5, 24px));
  padding-inline-start: 1.4em;
}
.tdm-text__body li {
  margin-bottom: var(--tdm-space-2, 8px);
}
.tdm-text__body li::marker {
  color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));
}

/* ---------- Inline marks ---------- */
.tdm-text__body a {
  color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));
  text-decoration: underline;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 1px;
  transition: color 160ms ease;
}
.tdm-text__body a:hover,
.tdm-text__body a:focus-visible {
  color: var(--tdm-color-accent-hover, #FF7A2F);
}
.tdm-text__body strong,
.tdm-text__body b {
  font-weight: 600;
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
}
.tdm-text__body em,
.tdm-text__body i {
  font-style: italic;
}

/* ---------- Block-level quote inside the rich text ---------- */
.tdm-text__body blockquote {
  margin: var(--tdm-space-5, 24px) 0;
  padding-inline-start: var(--tdm-space-4, 16px);
  border-inline-start: 2px solid var(--tdmx-accent, var(--tdm-color-accent, #E8651A));
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
}


/* ======================================================================
   TDM Feature Cards — Elementor-grade feature/value card grid.

   7 layouts driven by [data-layout]:
     icon-top (default) · icon-left · image-top · image-left · image-bg ·
     numbered · list
   Per-card media: icon chip / responsive <picture> / typeset number / none.
   Named hover effects via .tdm-fc--hover-* : none · lift · grow ·
   border-reveal · media-zoom. Responsive columns per breakpoint from
   [data-cols-m|t|d] (min-width-only ladder, per responsive_manual_en_0.1).

   Tokens come from the package tokens.css (--tdm-*); Design-controlled props
   consume var(--tdmx-*, <fallback>) so a control left at its default keeps
   this CSS fallback (emit-only-on-change). Fallbacks deliberately mirror the
   profile's neutral defaults (pad space-9, gap space-5, align left) so a fresh
   block renders identically whether or not the Design layer emits.

   BACK-COMPAT: the DEFAULT card (icon-top, surface=bordered, no badge, button
   link, h3 title, 3/2/1 cols) is byte-identical to the v1 block — the base
   rules below reproduce the old icon-top look exactly; every new affordance is
   additive and gated behind a [data-*] hook or a non-default media type.

   Light/dark: the band inherits the theme's dark surface tokens by default
   (this site is dark-first). A `[data-band="dark"]` consumer hook is wired so a
   future light-band remap can override the local --fc-* vars in ONE place
   without touching the rules. AA contrast holds in both: ink on surface(-2),
   accent chip on a 14%-tint, badge text on accent.

   Namespaced .tdm-fc__* (NOT .reveal — that is the package-global scroll-reveal
   class whose base state is opacity:0; reusing it would hide content).
   Block-instance scope (--tdmx-* + reveal) is on the outer .tdm-i-<bID>.
   ====================================================================== */

.tdm-fc {
  /* Local design vars — single place to remap for a light band (data-band). */
  --fc-ink:        var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
  --fc-ink-2:      var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA));
  --fc-accent:      var(--tdmx-accent, var(--tdm-color-accent, #E8651A));            /* FILL: chip/badge bg, borders, outline — never flips */
  --fc-accent-text: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));       /* TEXT: eyebrow, number, links, outline/soft badge label — flips to --orange-link on a light band */
  /* Accent-as-TEXT band var (model §2a-link). The global --tdmx-accent-text hook
     does NOT reliably reach descendants once the block declares its own [data-band]
     surface vars (it did NOT, here — the qa S125 link-on-light bug, #E8651A ~3.0:1).
     Re-tone accent-text LOCALLY: dark/auto = orange (~5.74:1), light = #B0470B
     (~5.1:1). Every accent-text glyph (eyebrow, number, links, title-hover, footer
     link, outline/soft badge label) routes through this for BOTH rest + hover. */
  --fc-link-color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));
  --fc-on-accent:  var(--tdm-color-on-accent, #FFFFFF);
  --fc-surface-2:  var(--tdm-color-surface-2, #141416);
  --fc-hairline:   color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 10%, transparent);

  /* outer block surface — Design layer drives these (fallbacks = neutral band) */
  padding-top: var(--tdmx-pad-top, var(--tdm-space-9, 80px));
  padding-bottom: var(--tdmx-pad-bottom, var(--tdm-space-9, 80px));
  padding-left: var(--tdmx-pad-left, 0);
  padding-right: var(--tdmx-pad-right, 0);
  margin-top: var(--tdmx-margin-top, 0);
  margin-bottom: var(--tdmx-margin-bottom, 0);
}

/* Light-band remap — S106 reconciliation (spec §1e / §5b).
   The global base.css .tdm-block[data-band="light"] hook now owns the INK:
   --fc-ink / --fc-ink-2 chain off --tdmx-heading / --tdmx-text, which the global
   flips → those two lines were dropped (redundant). KEEP --fc-surface-2 +
   --fc-hairline: they tone the filled-card SURFACE + hairline, which the global
   ink hook cannot reach — deleting them would reintroduce the S106 card look. */
.tdm-fc[data-band="light"] {
  --fc-surface-2: color-mix(in srgb, #000 4%, #FFFFFF);
  --fc-hairline:  color-mix(in srgb, var(--tdm-color-surface, #0D0D0F) 12%, transparent);
  /* accent-as-TEXT on light → AA-safe #B0470B (model §2a-link / §4). Plain
     attribute selector (0,1,1): beats base .tdm-fc (0,1,0), still loses to the
     per-instance emitter (0,2,0). NEVER :where(). */
  --fc-link-color: var(--tdm-color-accent-text-light, #B0470B);
}

/* Forced-dark band — pins accent-text to orange so a block dropped on a dark
   image/gradient (auto-luminance can't read it) keeps the AA orange link. */
.tdm-fc[data-band="dark"] {
  --fc-link-color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));
}

.tdm-fc__inner {
  text-align: var(--tdmx-align, left);
  /* Container parity: fall back to --tdm-container (base.css:37 default), never
     `none`, so an unset --tdmx-max-width can't let the inner escape full-bleed. */
  max-width: var(--tdmx-max-width, var(--tdm-container));
  margin-inline: auto;
}

/* ---------- header ---------- */
.tdm-fc__header {
  max-width: 60ch;
  margin-bottom: var(--tdm-space-7, 48px);
}
.tdm-fc__eyebrow {
  font-family: var(--tdm-font-mono, monospace);
  font-size: var(--tdm-fs-eyebrow, 0.8125rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fc-link-color, var(--fc-accent-text));
  margin: 0 0 var(--tdm-space-2, 8px);
}
.tdm-fc__heading {
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, sans-serif));
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.25rem);
  line-height: 1.15;
  color: var(--fc-ink);
  margin: 0;
}
.tdm-fc__intro {
  margin: var(--tdm-space-3, 12px) 0 0;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  line-height: 1.6;
  color: var(--fc-ink-2);
}

/* ---------- grid + responsive columns ---------- */
.tdm-fc__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--tdmx-gap, var(--tdm-space-5, 24px));
}
/* Mobile (<680): 1 or 2 columns. */
.tdm-fc[data-cols-m="2"] .tdm-fc__grid { grid-template-columns: repeat(2, 1fr); }
/* Tablet (>=680): 1 / 2 / 3 columns. */
@media (min-width: 680px) {
  .tdm-fc[data-cols-t="1"] .tdm-fc__grid { grid-template-columns: 1fr; }
  .tdm-fc[data-cols-t="2"] .tdm-fc__grid { grid-template-columns: repeat(2, 1fr); }
  .tdm-fc[data-cols-t="3"] .tdm-fc__grid { grid-template-columns: repeat(3, 1fr); }
}
/* Desktop (>=1024): 1 / 2 / 3 / 4 columns. */
@media (min-width: 1024px) {
  .tdm-fc[data-cols-d="1"] .tdm-fc__grid { grid-template-columns: 1fr; }
  .tdm-fc[data-cols-d="2"] .tdm-fc__grid { grid-template-columns: repeat(2, 1fr); }
  .tdm-fc[data-cols-d="3"] .tdm-fc__grid { grid-template-columns: repeat(3, 1fr); }
  .tdm-fc[data-cols-d="4"] .tdm-fc__grid { grid-template-columns: repeat(4, 1fr); }
}

/* The list layout collapses to a single column ladder regardless of cols. */
.tdm-fc[data-layout="list"] .tdm-fc__grid { grid-template-columns: 1fr; gap: 0; }

/* ---------- bento: span-wide card ----------
   A card flagged span_wide spans 2 grid columns. Min-width-only ladder
   (responsive_manual): the base grid below MD is single-column on this site's
   mobile defaults, so a wide card naturally fills the row (span 1 = full width).
   The span:2 is applied only inside the multi-column min-width queries — and only
   when the active grid actually has >=2 columns — so a wide card never tries to
   span past a 1-column grid. The list layout is always single-column → ignore. */
@media (min-width: 680px) {
  .tdm-fc[data-cols-t="2"]:not([data-layout="list"]) .tdm-fc__card--wide,
  .tdm-fc[data-cols-t="3"]:not([data-layout="list"]) .tdm-fc__card--wide {
    grid-column: span 2;
  }
}
@media (min-width: 1024px) {
  .tdm-fc[data-cols-d="2"]:not([data-layout="list"]) .tdm-fc__card--wide,
  .tdm-fc[data-cols-d="3"]:not([data-layout="list"]) .tdm-fc__card--wide,
  .tdm-fc[data-cols-d="4"]:not([data-layout="list"]) .tdm-fc__card--wide {
    grid-column: span 2;
  }
}
/* Mobile (<680) with an explicit 2-col grid: a wide card spans both columns. */
.tdm-fc[data-cols-m="2"]:not([data-layout="list"]) .tdm-fc__card--wide { grid-column: span 2; }

/* ---------- card base ---------- */
.tdm-fc__card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--tdm-space-3, 12px);
  margin: 0;
  text-align: left;
  color: inherit;
  text-decoration: none;
}
.tdm-fc__content {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-3, 12px);
  width: 100%;
  /* grow to fill the card so a CTA with margin-top:auto sticks to the bottom
     (preserves the v1 behaviour where the link sat at the card foot). */
  flex: 1 1 auto;
}

/* Vertical alignment of card content (only meaningful when cards stretch). */
.tdm-fc[data-valign="middle"] .tdm-fc__card { justify-content: center; }
.tdm-fc[data-valign="bottom"] .tdm-fc__card { justify-content: flex-end; }

/* ---------- surface (frame skin) — old card_style, byte-identical defaults ---------- */
.tdm-fc[data-surface="bordered"] .tdm-fc__card {
  padding: var(--tdm-space-6, 32px);
  border: 1px solid var(--fc-hairline);
  border-radius: var(--tdm-radius-md, 6px);
}
.tdm-fc[data-surface="filled"] .tdm-fc__card {
  padding: var(--tdm-space-6, 32px);
  background: var(--fc-surface-2);
  border-radius: var(--tdm-radius-md, 6px);
}
.tdm-fc[data-surface="bare"] .tdm-fc__card {
  padding: 0;
}
/* list layout: surface is always a hairline-separated row regardless of skin. */
.tdm-fc[data-layout="list"] .tdm-fc__card {
  flex-direction: row;
  align-items: center;
  gap: var(--tdm-space-4, 16px);
  padding: var(--tdm-space-4, 16px) 0;
  border: 0;
  border-bottom: 1px solid var(--fc-hairline);
  border-radius: 0;
  background: none;
}
.tdm-fc[data-layout="list"] .tdm-fc__card:first-child { border-top: 1px solid var(--fc-hairline); }

/* ---------- media: chip / image / number ---------- */
.tdm-fc__media-wrap {
  flex: 0 0 auto;
  display: block;
  line-height: 0;
}

/* icon chip */
.tdm-fc__chip {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--tdm-radius-md, 6px);
  background: color-mix(in srgb, var(--fc-accent) 14%, transparent);
  color: var(--fc-link-color, var(--fc-accent-text));
}
.tdm-fc__chip svg { width: 24px; height: 24px; display: block; }

/* media size cap — affects the chip + number + image frame consistently. */
.tdm-fc[data-media-size="small"] .tdm-fc__chip { width: 40px; height: 40px; }
.tdm-fc[data-media-size="small"] .tdm-fc__chip svg { width: 20px; height: 20px; }
.tdm-fc[data-media-size="large"] .tdm-fc__chip { width: 64px; height: 64px; }
.tdm-fc[data-media-size="large"] .tdm-fc__chip svg { width: 32px; height: 32px; }

/* media shape — chip + image frame corner treatment. */
.tdm-fc[data-media-shape="circle"] .tdm-fc__chip { border-radius: 50%; }
.tdm-fc[data-media-shape="rounded"] .tdm-fc__chip { border-radius: var(--tdm-radius-lg, 12px); }

/* typeset number */
.tdm-fc__num {
  display: block;
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, sans-serif));
  font-size: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);
  line-height: 1;
  font-weight: 700;
  color: var(--fc-link-color, var(--fc-accent-text));
}
.tdm-fc[data-media-size="small"] .tdm-fc__num { font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem); }
.tdm-fc[data-media-size="large"] .tdm-fc__num { font-size: clamp(2.75rem, 2.1rem + 2.6vw, 4rem); }

/* per-card image frame */
.tdm-fc__media {
  display: block;
  width: 100%;
  overflow: hidden;
  border-radius: var(--tdm-radius-md, 6px);
}
.tdm-fc[data-media-shape="circle"] .tdm-fc__media { border-radius: 50%; aspect-ratio: 1 / 1; }
.tdm-fc[data-media-shape="rounded"] .tdm-fc__media { border-radius: var(--tdm-radius-lg, 12px); }
.tdm-fc__media img,
.tdm-fc__media-pic img,
.tdm-fc__media-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tdm-fc__media--fit-contain img,
.tdm-fc__media--fit-contain .tdm-fc__media-img { object-fit: contain; }

/* ---------- LAYOUT: icon-top (default, byte-identical to v1) ---------- */
/* (base .tdm-fc__card is column + flex-start; nothing extra needed) */

/* ---------- LAYOUT: icon-left ---------- */
.tdm-fc[data-layout="icon-left"] .tdm-fc__card {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--tdm-space-4, 16px);
}

/* media position override (icon-top / icon-left layouts only). */
.tdm-fc[data-media-pos="left"][data-layout="icon-top"] .tdm-fc__card { flex-direction: row; align-items: flex-start; gap: var(--tdm-space-4, 16px); }
.tdm-fc[data-media-pos="right"][data-layout="icon-top"] .tdm-fc__card { flex-direction: row-reverse; align-items: flex-start; gap: var(--tdm-space-4, 16px); }
.tdm-fc[data-media-pos="right"][data-layout="icon-left"] .tdm-fc__card { flex-direction: row-reverse; }

/* ---------- LAYOUT: image-top ---------- */
.tdm-fc[data-layout="image-top"] .tdm-fc__card { gap: var(--tdm-space-4, 16px); }
.tdm-fc[data-layout="image-top"] .tdm-fc__media-wrap { width: 100%; }
.tdm-fc[data-layout="image-top"] .tdm-fc__media { aspect-ratio: 16 / 10; }

/* ---------- LAYOUT: image-left ---------- */
/* Mobile-first (responsive_manual: min-width only). Base (XS, <480) stacks the
   image above the text; from SM (>=480) it becomes the magazine row with the
   image in a ~38% left column. */
.tdm-fc[data-layout="image-left"] .tdm-fc__card {
  flex-direction: column;
  gap: var(--tdm-space-4, 16px);
}
.tdm-fc[data-layout="image-left"] .tdm-fc__media-wrap { flex-basis: auto; max-width: 100%; width: 100%; }
.tdm-fc[data-layout="image-left"] .tdm-fc__media { aspect-ratio: 4 / 3; }
@media (min-width: 480px) {
  .tdm-fc[data-layout="image-left"] .tdm-fc__card { flex-direction: row; align-items: stretch; }
  .tdm-fc[data-layout="image-left"] .tdm-fc__media-wrap { flex: 0 0 38%; max-width: 38%; width: auto; }
  .tdm-fc[data-layout="image-left"] .tdm-fc__media { height: 100%; }
}

/* ---------- LAYOUT: image-bg + overlay ---------- */
.tdm-fc[data-layout="image-bg"] .tdm-fc__card {
  padding: 0;
  border: 0;
  background: var(--fc-surface-2);
  border-radius: var(--tdm-radius-md, 6px);
  overflow: hidden;
  min-height: 280px;
  justify-content: flex-end;
}
.tdm-fc[data-layout="image-bg"] .tdm-fc__media-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.tdm-fc[data-layout="image-bg"] .tdm-fc__media { width: 100%; height: 100%; border-radius: 0; }
.tdm-fc[data-layout="image-bg"] .tdm-fc__media img,
.tdm-fc[data-layout="image-bg"] .tdm-fc__media-img { height: 100%; object-fit: cover; }
.tdm-fc[data-layout="image-bg"] .tdm-fc__card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(13,13,15,0.05) 0%, rgba(13,13,15,0.55) 55%, rgba(13,13,15,0.86) 100%);
}
.tdm-fc[data-layout="image-bg"] .tdm-fc__content {
  position: relative;
  z-index: 2;
  padding: var(--tdm-space-6, 32px);
}
.tdm-fc[data-layout="image-bg"] .tdm-fc__badge { z-index: 2; }
/* on the dark scrim the title/body are always light for contrast. */
.tdm-fc[data-layout="image-bg"] .tdm-fc__title { color: var(--tdm-color-ink, #F5F4F0); }
.tdm-fc[data-layout="image-bg"] .tdm-fc__body { color: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 82%, transparent); }

/* ---------- LAYOUT: numbered ---------- */
.tdm-fc[data-layout="numbered"] .tdm-fc__card { gap: var(--tdm-space-3, 12px); }

/* ---------- LAYOUT: list ---------- */
.tdm-fc[data-layout="list"] .tdm-fc__media-wrap { flex: 0 0 auto; }
.tdm-fc[data-layout="list"] .tdm-fc__content { gap: var(--tdm-space-1, 4px); }
.tdm-fc[data-layout="list"] .tdm-fc__num { font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.625rem); }

/* ---------- badge ---------- */
.tdm-fc__badge {
  position: absolute;
  top: var(--tdm-space-4, 16px);
  right: var(--tdm-space-4, 16px);
  z-index: 3;
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--tdm-radius-pill, 999px);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
}
/* AA primary fill (S126): #B0470B = 5.60:1 white-on-fill (vs --orange #E8651A 2.93:1). */
.tdm-fc[data-badge="solid"] .tdm-fc__badge { background: var(--tdm-color-btn-fill, #B0470B); color: var(--fc-on-accent); }
.tdm-fc[data-badge="outline"] .tdm-fc__badge { background: transparent; color: var(--fc-link-color, var(--fc-accent-text)); border: 1px solid var(--fc-accent); }
.tdm-fc[data-badge="soft"] .tdm-fc__badge { background: color-mix(in srgb, var(--fc-accent) 16%, transparent); color: var(--fc-link-color, var(--fc-accent-text)); }
/* bare/list layouts have no card padding to anchor an absolute badge → inline it. */
.tdm-fc[data-surface="bare"]:not([data-layout="image-bg"]) .tdm-fc__badge,
.tdm-fc[data-layout="list"] .tdm-fc__badge {
  position: static;
  align-self: flex-start;
}

/* ---------- text ---------- */
.tdm-fc__title {
  margin: 0;
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, sans-serif));
  font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
  line-height: 1.25;
  color: var(--fc-ink);
}
.tdm-fc__title-link { color: inherit; text-decoration: none; }
.tdm-fc__title-link:hover { color: var(--fc-link-color, var(--fc-accent-text)); }
.tdm-fc__body {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--fc-ink-2);
}
/* iter-2 A5: inline body-copy links had no rule ⇒ fell through to #E8651A
   (3.02:1 on cream = fail). Route through --fc-link-color which is already
   remapped to #B0470B (AA 5.09:1) on the light band (L72) and stays orange on dark. */
.tdm-fc__body a {
  color: var(--fc-link-color, var(--fc-accent-text));
  text-decoration: underline;
  text-underline-offset: 2px;
}
.tdm-fc__body a:hover { color: var(--fc-link-color); }

/* ---------- link / CTA ---------- */
.tdm-fc__link {
  display: inline-flex;
  align-items: center;
  gap: var(--tdm-space-2, 8px);
  margin-top: auto;
  min-height: 44px;        /* 44px touch target (manual §7) */
  font-weight: 600;
  text-decoration: none;
  color: var(--fc-link-color, var(--fc-accent-text));
}
.tdm-fc__link:hover { text-decoration: underline; }
.tdm-fc__link--static { cursor: inherit; }
.tdm-fc__link-arrow { width: 18px; height: 18px; transition: transform 0.18s ease; }
.tdm-fc__link:hover .tdm-fc__link-arrow { transform: translateX(3px); }

/* whole-card link: the entire card is the anchor; arrow nudges on card hover. */
a.tdm-fc__card { cursor: pointer; }
a.tdm-fc__card:hover .tdm-fc__link-arrow { transform: translateX(3px); }
a.tdm-fc__card:hover .tdm-fc__title { color: var(--fc-link-color, var(--fc-accent-text)); }

/* ---------- block-level footer link ("View all →") ---------- */
.tdm-fc__footer-link {
  display: inline-flex;
  align-items: center;
  gap: var(--tdm-space-2, 8px);
  margin-top: var(--tdm-space-6, 32px);
  min-height: 44px;        /* 44px touch target (manual §7) */
  font-weight: 600;
  text-decoration: none;
  color: var(--fc-link-color, var(--fc-accent-text));
}
.tdm-fc__footer-link:hover { text-decoration: underline; }
.tdm-fc__footer-link:hover .tdm-fc__link-arrow { transform: translateX(3px); }

/* ---------- focus states (keyboard) ---------- */
a.tdm-fc__card:focus-visible,
.tdm-fc__title-link:focus-visible,
.tdm-fc__link:focus-visible,
.tdm-fc__footer-link:focus-visible {
  outline: 2px solid var(--fc-accent);
  outline-offset: 3px;
  border-radius: var(--tdm-radius-sm, 3px);
}

/* ---------- hover effects (block-level named) ---------- */
.tdm-fc--hover-lift .tdm-fc__card { transition: transform 0.2s ease, box-shadow 0.2s ease; }
.tdm-fc--hover-lift .tdm-fc__card:hover { transform: translateY(-4px); box-shadow: var(--tdm-shadow-md, 0 8px 24px rgba(0,0,0,0.28)); }

.tdm-fc--hover-grow .tdm-fc__card { transition: transform 0.2s ease; }
.tdm-fc--hover-grow .tdm-fc__card:hover { transform: scale(1.02); }

.tdm-fc--hover-border-reveal .tdm-fc__card { transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.tdm-fc--hover-border-reveal .tdm-fc__card:hover {
  border-color: var(--fc-link-color, var(--fc-accent-text));
  box-shadow: inset 0 0 0 1px var(--fc-accent);
}

.tdm-fc--hover-media-zoom .tdm-fc__media img,
.tdm-fc--hover-media-zoom .tdm-fc__media-img { transition: transform 0.3s ease; }
.tdm-fc--hover-media-zoom .tdm-fc__card:hover .tdm-fc__media img,
.tdm-fc--hover-media-zoom .tdm-fc__card:hover .tdm-fc__media-img { transform: scale(1.06); }
/* media-zoom on a non-image (icon) card falls back to a subtle lift. */
.tdm-fc--hover-media-zoom .tdm-fc__card { transition: transform 0.2s ease, box-shadow 0.2s ease; }
.tdm-fc--hover-media-zoom .tdm-fc__card:hover { transform: translateY(-3px); box-shadow: var(--tdm-shadow-md, 0 8px 24px rgba(0,0,0,0.28)); }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .tdm-fc__link-arrow,
  .tdm-fc__card,
  .tdm-fc__media img,
  .tdm-fc__media-img { transition: none !important; }
  .tdm-fc--hover-lift .tdm-fc__card:hover,
  .tdm-fc--hover-grow .tdm-fc__card:hover,
  .tdm-fc--hover-media-zoom .tdm-fc__card:hover { transform: none; }
  .tdm-fc--hover-media-zoom .tdm-fc__card:hover .tdm-fc__media img,
  .tdm-fc--hover-media-zoom .tdm-fc__card:hover .tdm-fc__media-img { transform: none; }
  .tdm-fc__link:hover .tdm-fc__link-arrow,
  a.tdm-fc__card:hover .tdm-fc__link-arrow,
  .tdm-fc__footer-link:hover .tdm-fc__link-arrow { transform: none; }
}

/* images never overflow their box (responsive manual) */
.tdm-fc img { max-width: 100%; height: auto; display: block; }


/* Section / Container — most styling comes from the package base.css
   (.tdm-block + per-instance --tdmx-* vars). These are block-specific touches. */

.tdm-section__title {
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline));
  font-size: var(--tdm-text-h2);
  font-weight: var(--tdm-weight-headline);
  line-height: var(--tdm-leading-tight);
  margin: 0 0 var(--tdm-space-5);
}

.tdm-section__body {
  font-size: var(--tdm-text-body);
  line-height: var(--tdm-leading-body);
  color: var(--tdmx-text, var(--tdm-color-ink-2));
}

/* Rich-text body: let `> * + *` drive paragraph spacing (kills doubled-up
   browser margins so Enter = one clean paragraph gap). */
.tdm-section__body p,
.tdm-section__body ul,
.tdm-section__body ol { margin: 0; }
.tdm-section__body ul,
.tdm-section__body ol { padding-left: 1.25em; }
.tdm-section__body > * + * { margin-top: var(--tdm-space-4); }
.tdm-section__body a { color: var(--tdmx-accent-text, var(--tdm-color-accent)); }


/* ======================================================================
   TDM Accordion — collapsible Q&A / accordion list.
   Tokens come from the package tokens.css (--tdm-*); Design-controlled props
   consume var(--tdmx-*, <fallback>) so a control left at its default keeps
   this CSS fallback (emit-only-on-change).

   Namespaced .tdm-acc__* (NOT .reveal — that is the package-global scroll-reveal
   class whose base state is opacity:0; reusing it would hide content).
   Block-instance scope (--tdmx-* + reveal) is on the outer .tdm-i-<bID>.

   Built on native <details>/<summary>: the panel toggles with zero JS; view.js
   only adds sibling-close for "single" + a reduced-motion-gated smooth height.
   ====================================================================== */

.tdm-accordion {
  /* outer block surface — Design layer drives these (fallbacks = neutral band) */
  padding-top: var(--tdmx-pad-top, var(--tdm-space-9, 80px));
  padding-bottom: var(--tdmx-pad-bottom, var(--tdm-space-9, 80px));
  padding-left: var(--tdmx-pad-left, 0);
  padding-right: var(--tdmx-pad-right, 0);
  margin-top: var(--tdmx-margin-top, 0);
  margin-bottom: var(--tdmx-margin-bottom, 0);

  /* ----- BAND-TONE local element vars (tdm-band-tone-model-v1 §2/§2b) -----
     Single place to re-tone for a band. Defaults track the DARK-first theme +
     the operator's accent override. The OUTER band fill is set via --tdmx-bg
     on the [data-band] rules (own-surface lever, §2-own-surface) — NOT a direct
     background here (that would suppress the operator's per-instance Design bg). */
  --acc-item-bg:    var(--tdm-color-surface-2, #141416);                                   /* accordion item surface */
  --acc-hairline:   color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 10%, transparent);    /* item border */
  --acc-link-color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));             /* accent-as-TEXT (eyebrow/q-hover/q-open) */
}

/* Light-band ink remap (spec §1e) — heading/question/intro/answer read
   --tdmx-*-color (the dead -color suffix the base hook can't reach), so re-tone
   locally to the dark-on-light ink, mirroring the global target. + OWN light
   surface (--tdmx-bg, §2-own-surface) + re-tone the item surface/hairline (§2b)
   + AA-safe accent-as-text link colour (§2a-link). PLAIN attribute selector
   (0,1,1) — NEVER :where() (0,0,0 loses to the base .tdm-accordion class).
   Emitted only with data-band="light" → byte-identical otherwise. */
.tdm-accordion[data-band="light"] {
  --tdmx-bg:            color-mix(in srgb, #000 2%, #FFFFFF);                               /* own near-paper band fill */
  --tdmx-heading-color: var(--tdm-color-surface);
  --tdmx-text-color:    color-mix(in srgb, var(--tdm-color-surface) 78%, transparent);
  --acc-item-bg:        color-mix(in srgb, #000 4%, #FFFFFF);                               /* light item surface (§2b #2) */
  --acc-hairline:       color-mix(in srgb, var(--tdm-color-surface, #0D0D0F) 12%, transparent); /* §2b #11 */
  --acc-link-color:     var(--tdm-color-accent-text-light, #B0470B);                        /* AA-safe orange-on-cream (§2a-link) */
}

/* FORCED DARK band — own dark surface so a block dropped on a dark image/gradient
   (where auto-luminance can't read a hex) is guaranteed legible. Ink/accent-text
   pinned by base.css. Plain attribute selector (0,1,1) — same reason as light. */
.tdm-accordion[data-band="dark"] {
  --tdmx-bg:        var(--tdm-color-surface, #0D0D0F);                                       /* own dark band fill */
  --acc-item-bg:    var(--tdm-color-surface-2, #141416);
  --acc-hairline:   color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 10%, transparent);
  --acc-link-color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));
}

.tdm-acc__inner {
  text-align: var(--tdmx-align, left);
}

/* ---------- header ---------- */
.tdm-acc__header {
  max-width: 60ch;
  margin-bottom: var(--tdm-space-7, 48px);
}
.tdm-acc__eyebrow {
  font-family: var(--tdm-font-mono, monospace);
  font-size: var(--tdm-fs-eyebrow, 0.8125rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  /* accent-as-TEXT — local link var re-tones to AA-safe orange on a light band (§2a-link) */
  color: var(--acc-link-color, var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A)));
  margin: 0 0 var(--tdm-space-2, 8px);
}
.tdm-acc__heading {
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, sans-serif));
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.25rem);
  line-height: 1.15;
  /* explicit colour — defeats the global dark-first h1..h6 ink trap on light themes */
  color: var(--tdmx-heading-color, var(--tdm-color-ink, #F5F4F0));
  margin: 0;
}
.tdm-acc__intro {
  margin: var(--tdm-space-3, 12px) 0 0;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.0625rem);
  line-height: 1.6;
  color: var(--tdmx-text-color, var(--tdm-color-ink-2, #B0B0BA));
}

/* ---------- list ---------- */
.tdm-acc__list {
  display: flex;
  flex-direction: column;
  gap: var(--tdmx-gap, var(--tdm-space-3, 12px));
}

/* ---------- item (native <details>) ---------- */
.tdm-acc__item {
  border: 1px solid var(--tdmx-border, var(--acc-hairline));
  border-radius: var(--tdmx-radius, var(--tdm-radius-md, 6px));
  background: var(--acc-item-bg);
  overflow: hidden;
}
.tdm-acc__item[open] {
  border-color: var(--tdmx-accent, var(--tdm-color-accent, #E8651A));
}

/* ---------- question (summary) ---------- */
.tdm-acc__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tdm-space-4, 16px);
  /* keep above the 44px touch-target minimum (responsive manual) */
  min-height: 44px;
  padding: var(--tdm-space-4, 16px) var(--tdm-space-5, 24px);
  cursor: pointer;
  list-style: none;
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, sans-serif));
  font-weight: 600;
  font-size: clamp(1rem, 0.97rem + 0.2vw, 1.125rem);
  line-height: 1.4;
  /* explicit colour — the question is a heading-class string on a custom block */
  color: var(--tdmx-heading-color, var(--tdm-color-ink, #F5F4F0));
  text-align: left;
  transition: color 0.18s ease, background-color 0.18s ease;
}
/* hide the native disclosure triangle across engines */
.tdm-acc__q::-webkit-details-marker { display: none; }
.tdm-acc__q::marker { content: ''; }

.tdm-acc__q:hover,
.tdm-acc__q:focus-visible {
  /* question-text turns accent = accent-as-TEXT → re-tone via local link var (§2a-link) */
  color: var(--acc-link-color, var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A)));
}
.tdm-acc__q:focus-visible {
  outline: 2px solid var(--tdmx-accent, var(--tdm-color-accent, #E8651A));
  outline-offset: -2px;
}
.tdm-acc__item[open] > .tdm-acc__q {
  /* open-state question text in accent = accent-as-TEXT → local link var (§2a-link) */
  color: var(--acc-link-color, var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A)));
}

.tdm-acc__q-text { min-width: 0; }

/* ---------- chevron ---------- */
.tdm-acc__chev {
  flex: 0 0 auto;
  display: inline-flex;
  width: 22px;
  height: 22px;
  color: var(--tdmx-accent-text, var(--tdm-color-accent, #E8651A));
  transition: transform 0.22s ease;
}
/* iter-2 A5: chevron accent on light band → AA #B0470B. It reads --tdmx-accent-text
   directly (not --acc-link-color), so it needs its own plain-attribute light remap
   (0,1,1) to guarantee the flip even when local band vars shadow the base.css hook. */
.tdm-accordion[data-band="light"] .tdm-acc__chev {
  color: var(--tdm-color-accent-text-light, #B0470B);
}
.tdm-acc__chev svg { width: 22px; height: 22px; }
/* Built-in chevron rotates on open. The custom-icon variant does NOT rotate
   (it swaps glyphs instead) — scope the rotate to the default chevron only. */
.tdm-accordion:not(.tdm-acc--customicon) .tdm-acc__item[open] > .tdm-acc__q .tdm-acc__chev {
  transform: rotate(180deg);
}

/* ---------- custom open/close icon (IconPicker glyphs) ---------- */
/* Closed glyph shown by default; open glyph shown on [open]. Both sized like the
   chevron; pure-CSS swap so the zero-JS baseline is preserved. */
.tdm-acc__ico { display: none; width: 22px; height: 22px; }
.tdm-acc__ico svg { width: 22px; height: 22px; }
.tdm-acc--customicon .tdm-acc__item:not([open]) > .tdm-acc__q .tdm-acc__ico--closed { display: inline-flex; }
.tdm-acc--customicon .tdm-acc__item[open] > .tdm-acc__q .tdm-acc__ico--open { display: inline-flex; }

/* ---------- answer panel ---------- */
.tdm-acc__a {
  padding: 0 var(--tdm-space-5, 24px) var(--tdm-space-4, 16px);
  font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1rem);
  line-height: 1.65;
  color: var(--tdmx-text-color, var(--tdm-color-ink-2, #B0B0BA));
}

/* ---------- answer panel WITH side image (S73 FAQ layout) ---------- */
/* Below LG: single column, image stacks AFTER the answer text (source order). */
.tdm-acc__a--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--tdm-space-4, 16px);
}
.tdm-acc__a-text { min-width: 0; }
.tdm-acc__a-media { min-width: 0; }
.tdm-acc__img,
.tdm-acc__a-media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--tdmx-radius, var(--tdm-radius-md, 6px));
}
/* LG+: two-column text | image (~70/30). Image side follows the block control:
   default 'right' keeps source order; 'left' visually swaps via grid order. */
@media (min-width: 768px) {
  .tdm-acc__a--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 30%);
    align-items: start;
    gap: var(--tdm-space-5, 24px);
  }
  .tdm-acc--img-left .tdm-acc__a--split .tdm-acc__a-text { order: 2; }
  .tdm-acc--img-left .tdm-acc__a--split .tdm-acc__a-media { order: 1; }
}

/* respect users who prefer no motion — chevron snaps, no rotate easing */
@media (prefers-reduced-motion: reduce) {
  .tdm-acc__chev,
  .tdm-acc__q { transition: none; }
}

/* images never overflow their box (responsive manual) */
.tdm-accordion img { max-width: 100%; height: auto; display: block; }

/* ======================================================================
   Section-level side image (GAP-I) — an aside beside the WHOLE accordion.
   ALL rules here are scoped under .tdm-acc--has-aside, which is emitted ONLY
   when an operator picks a section image. With no image these selectors never
   match → every existing tdm_accordion instance is byte-identical.
   Port of arech_faq_accordion's 70/30 sticky portrait look (the defaults).
   Breakpoints: min-width ONLY (responsive_manual_en_0.1.md). 1024px matches
   the OLD block so a migrated instance renders identically.
   ====================================================================== */

/* Mobile-first: single column. .tdm-acc__main holds header + list; .tdm-acc__aside
   is the image column. The two-column grid only kicks in at LG (1024px). */
.tdm-acc--has-aside .tdm-acc__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--tdm-sec-gap, var(--tdm-space-8, 64px));
  align-items: start;
}
.tdm-acc--has-aside .tdm-acc__main { min-width: 0; }

/* Aside hidden below 1024px when "hide on mobile" is on (the OLD behaviour). */
.tdm-acc--aside-hidemob .tdm-acc__aside { display: none; }

/* When the aside DOES stack on mobile (hide-on-mobile off), allow image-first
   ordering via CSS `order` (DOM order = content first, unchanged for SR). */
.tdm-acc--mob-image-first .tdm-acc__aside { order: -1; }
.tdm-acc--mob-image-first .tdm-acc__main  { order: 0; }

/* ---- section image frame + picture ---- */
.tdm-acc__sec-frame { min-width: 0; }
.tdm-acc__sec-img,
.tdm-acc__sec-frame img {
  max-width: 100%;
  height: auto;
  display: block;
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--tdm-hairline, color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 14%, transparent));
  border-radius: var(--tdm-radius-sm, 4px);
}

/* aspect-ratio presets (default portrait = the OLD 3:4 look). auto = natural. */
.tdm-acc--ar-portrait  .tdm-acc__sec-img,
.tdm-acc--ar-portrait  .tdm-acc__sec-frame img { aspect-ratio: 3 / 4; }
.tdm-acc--ar-square    .tdm-acc__sec-img,
.tdm-acc--ar-square    .tdm-acc__sec-frame img { aspect-ratio: 1 / 1; }
.tdm-acc--ar-landscape .tdm-acc__sec-img,
.tdm-acc--ar-landscape .tdm-acc__sec-frame img { aspect-ratio: 4 / 3; }
.tdm-acc--ar-auto      .tdm-acc__sec-img,
.tdm-acc--ar-auto      .tdm-acc__sec-frame img { aspect-ratio: auto; object-fit: contain; }

/* corner radius presets (default sm = the OLD --radius-sm). */
.tdm-acc--arad-none .tdm-acc__sec-img, .tdm-acc--arad-none .tdm-acc__sec-frame img { border-radius: 0; }
.tdm-acc--arad-sm   .tdm-acc__sec-img, .tdm-acc--arad-sm   .tdm-acc__sec-frame img { border-radius: var(--tdm-radius-sm, 4px); }
.tdm-acc--arad-md   .tdm-acc__sec-img, .tdm-acc--arad-md   .tdm-acc__sec-frame img { border-radius: var(--tdm-radius-md, 6px); }
.tdm-acc--arad-lg   .tdm-acc__sec-img, .tdm-acc--arad-lg   .tdm-acc__sec-frame img { border-radius: var(--tdm-radius-lg, 12px); }
.tdm-acc--arad-pill .tdm-acc__sec-img, .tdm-acc--arad-pill .tdm-acc__sec-frame img { border-radius: var(--tdm-radius-pill, 999px); }

/* ---- LG+ : two-column layout (the 70/30 split, image right by default) ---- */
@media (min-width: 1024px) {
  /* width share: content column first in DOM, image column second. */
  .tdm-acc--aw-30         .tdm-acc__inner { grid-template-columns: 7fr 3fr; }
  .tdm-acc--aw-third      .tdm-acc__inner { grid-template-columns: 2fr 1fr; }
  .tdm-acc--aw-two-fifths .tdm-acc__inner { grid-template-columns: 3fr 2fr; }

  /* side: default content-left/image-right (DOM order). 'left' swaps visually via
     `order` (DOM order unchanged for SR) and mirrors the width tracks. */
  .tdm-acc--aside-left .tdm-acc__main  { order: 2; }
  .tdm-acc--aside-left .tdm-acc__aside { order: 1; }
  .tdm-acc--aside-left.tdm-acc--aw-30         .tdm-acc__inner { grid-template-columns: 3fr 7fr; }
  .tdm-acc--aside-left.tdm-acc--aw-third      .tdm-acc__inner { grid-template-columns: 1fr 2fr; }
  .tdm-acc--aside-left.tdm-acc--aw-two-fifths .tdm-acc__inner { grid-template-columns: 2fr 3fr; }

  /* re-show the aside at LG when hidden on mobile (the OLD desktop-only image). */
  .tdm-acc--aside-hidemob .tdm-acc__aside { display: block; }

  /* vertical behaviour: sticky (OLD) follows then pins; top/center align the column. */
  .tdm-acc--av-sticky .tdm-acc__aside {
    position: sticky;
    top: var(--tdm-space-8, 64px);
    align-self: start;
  }
  .tdm-acc--av-top    .tdm-acc__aside { align-self: start; }
  .tdm-acc--av-center .tdm-acc__aside { align-self: center; }
}


/* ======================================================================
   TDM AI Assistant — page-context chat widget.
   Tokens from the package tokens.css (--tdm-*). Design-controlled props
   consume var(--tdmx-*, var(--tdm-*, fallback)) (emit-only-on-change).
   Namespaced .tdm-ai* classes only. 44px touch floor. prefers-reduced-motion
   safe (composite-only transform/opacity). Inner surfaces re-tone on
   [data-band="light"] (builder Lesson 6 — plain attribute selector, never
   :where(); accent routed through a LOCAL --tdm-ai-accent var).
   ====================================================================== */

.tdm-ai__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--tdmx-gap, var(--tdm-space-4, 16px));
}

/* Local accent var so the orange stays legible on both bands. */
.tdm-ai {
  /* Rail redesign (design-spec-ai-chat-rail-v2 §0): the accent is the brand CTA
     orange #E8651A (the package token --tdm-color-accent), NOT the duller burnt
     #B0470B — Rail is the sales surface. The operator's custom launcher colour
     (--tdm-ai-primary) scopes to the LAUNCHER ONLY (spec §4.2) — it must never
     recolor the widget-wide accent system (quote bar, send, bubble rail), so it
     is deliberately absent from this chain; the launcher fill consumes it via
     --tdm-ai-launcher-bg set inline by the renderer.
     White label / glyph on this fill = 3.33:1 (large-text + non-text PASS). */
  --tdm-ai-accent: var(--tdmx-accent, var(--tdm-color-accent, #E8651A));
  /* Accent-AS-TEXT (eyebrow / small labels). On DARK the brand orange is AA as
     small text (#E8651A = 5.17:1 on the #1C1C20 card, 5.50:1 on the panel). On the
     LIGHT band it remaps to burnt #B0470B (--tdm-color-accent-text-light, 5.41:1 on
     #FAFAFA) — see the band-tone section. NEVER burnt as small text on dark
     (builder lesson: that exact failure shipped once). */
  --tdm-ai-accent-text-safe: var(--tdm-color-accent, #E8651A);
  /* Agent-joined GREEN (design-spec §0, LOCKED — traffic-light semantics, not a
     brand accent). 8.42:1 on the panel. */
  --tdm-ai-status-online: #35C77E;
  /* Small meta / timestamps (design-spec §0): #909099 = 5.87:1 (the site --muted
     #6B6B75 FAILS body at 3.48:1). Re-toned on the light band below. */
  --tdm-ai-meta: #909099;
  /* Bug 2 fix (QA AA contrast): accent-as-TEXT (the consent link + the required /
     error consent states) must stay AA (>=4.5:1) on the panel for ANY accent the
     operator freely picks for branding. The RAW accent alone fails — measured blue
     #0672b7 = 3.59:1 on the #141416 panel. color-mix() cannot READ luminance, so it
     can't clamp to a contrast ratio; instead we lighten the accent toward the near-
     white ink by a FIXED fraction chosen high enough (55% ink) to clear AA even for a
     pathologically dark accent (pure black -> 5.07:1), while keeping the accent hue.
     Realistic accents land 8-9:1 on the dark panel. The light band re-derives this
     toward the dark surface (band-tone section below). Percentages verified by WCAG
     relative-luminance calc for blue/orange/green/black (see delivery note). This is
     accent-as-TEXT re-toning via a LOCAL band var — NOT the global accent hook. */
  --tdm-ai-link-safe: color-mix(in srgb, var(--tdm-ai-accent) 45%, var(--tdm-color-ink, #F5F4F0));
  /* Launcher size tokens (s/m/l) — 44px floor for touch targets. */
  --tdm-ai-launcher-size: 56px;
  /* Rating "empty" star colour (D). Set via a var so the light-band re-tone only
     flips the variable (below) — the fills override `color` directly at higher
     specificity, so no specificity fight on the light band. */
  --tdm-ai-star-empty: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 26%, transparent);
}
.tdm-ai__launcher--s { --tdm-ai-launcher-size: 44px; }
.tdm-ai__launcher--m { --tdm-ai-launcher-size: 56px; }
.tdm-ai__launcher--l { --tdm-ai-launcher-size: 64px; }

/* ---------- launcher (shared) ---------- */
.tdm-ai__launcher {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--tdm-space-2, 8px);
  min-height: 44px;
  /* Launcher chrome (spec §8.3): independent background (accent | custom | none)
     + border (on/off, width, colour), driven by inline --tdm-ai-launcher-* props
     emitted per-instance by the renderer. Fallbacks keep the default look when
     the props are absent. */
  border: var(--tdm-ai-launcher-border-width, 1px) solid var(--tdm-ai-launcher-border-color, var(--tdm-ai-accent));
  background: var(--tdm-ai-launcher-bg, var(--tdm-ai-accent));
  color: #FFFFFF;
  font-family: var(--tdmx-font-heading, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background var(--tdm-motion-fast, 160ms) ease, transform var(--tdm-motion-fast, 160ms) ease, box-shadow var(--tdm-motion-fast, 160ms) ease, border-color var(--tdm-motion-fast, 160ms) ease;
}
/* Hover darkens the background — EXCEPT when the background is transparent
   (bg mode = none), where darkening would paint a translucent black film; there
   we darken the border instead so the affordance stays clean. */
.tdm-ai:not([data-launcher-bg="none"]) .tdm-ai__launcher:hover {
  background: color-mix(in srgb, var(--tdm-ai-launcher-bg, var(--tdm-ai-accent)) 86%, #000);
}
.tdm-ai[data-launcher-bg="none"] .tdm-ai__launcher:hover {
  border-color: color-mix(in srgb, var(--tdm-ai-launcher-border-color, var(--tdm-ai-accent)) 70%, #000);
}
/* Hide the launcher when the assistant is offline AND the operator opted in
   (hide_launcher_when_offline, spec §10). Compound selector so a placed block's
   offline card stays reachable unless the operator turned the option on. */
.tdm-ai--hideoffline.tdm-ai--offline .tdm-ai__launcher {
  display: none;
}
.tdm-ai__launcher:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}
.tdm-ai__launcher-icon {
  flex: none;
}
.tdm-ai__launcher-glyph {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

/* ---------- launcher shapes ---------- */
/* circle + rounded = a square button (icon only, label visually hidden). pill =
   a wide button that shows the label text. */
.tdm-ai__launcher--circle,
.tdm-ai__launcher--rounded {
  width: var(--tdm-ai-launcher-size);
  height: var(--tdm-ai-launcher-size);
  padding: 0;
}
.tdm-ai__launcher--circle { border-radius: 50%; }
.tdm-ai__launcher--rounded { border-radius: var(--tdm-radius, 14px); }
/* Rail edge-tab launcher (design-spec §1.1): a fixed 52px pill with a 20px glyph +
   the visible label. The s/m/l size maps to label padding, not diameter (§4.2), so
   the pill height is fixed regardless of --tdm-ai-launcher-size. Geometry values
   (52/18/14/10) are the Rail-locked tab dimensions. */
.tdm-ai__launcher--pill {
  height: 52px;
  min-height: 52px;
  min-width: 44px;
  padding: 0 18px 0 14px;
  gap: 10px;
  border-radius: var(--tdm-radius-pill, 999px);
  font-size: 15px;
}
.tdm-ai__launcher--pill .tdm-ai__launcher-glyph,
.tdm-ai__launcher--pill .tdm-ai__launcher-icon {
  width: 20px;
  height: 20px;
}
/* Label: hidden on circle/rounded (icon-only), shown on pill. Always present in
   the DOM + on aria-label for screen readers. */
.tdm-ai__launcher-label {
  display: none;
}
.tdm-ai__launcher--pill .tdm-ai__launcher-label {
  display: inline;
}
.tdm-ai__launcher--circle .tdm-ai__launcher-label,
.tdm-ai__launcher--rounded .tdm-ai__launcher-label {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ---------- launcher icon modes ---------- */
.tdm-ai__launcher-img {
  display: block;
  width: 60%;
  height: 60%;
  object-fit: contain;
}
.tdm-ai__launcher-img--avatar-photo,
.tdm-ai__launcher-img--logo {
  width: calc(var(--tdm-ai-launcher-size) - 12px);
  height: calc(var(--tdm-ai-launcher-size) - 12px);
  border-radius: 50%;
  object-fit: cover;
}
/* animated-image: the animated raster sits on top; the static poster is the
   fallback (shown before load + under reduced-motion, via CSS below). */
.tdm-ai__launcher-animated {
  position: relative;
  display: inline-flex;
  width: calc(var(--tdm-ai-launcher-size) - 12px);
  height: calc(var(--tdm-ai-launcher-size) - 12px);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 50%;
  overflow: hidden;
}
.tdm-ai__launcher-anim-img,
.tdm-ai__launcher-anim-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* Poster is a fallback layer under the animated image; hidden when the animated
   source paints. Reduced-motion swaps them (animated hidden, poster shown). */
.tdm-ai__launcher-anim-poster { opacity: 0; }

/* animated-svg: the BUNDLED zero-JS SMIL icon. The transparent cyan/teal art is
   placed on a neutral dark chip (#1C1C20) so it reads on any launcher colour.
   The chip fills the launcher inner box and clips the SVG to the shape; the SVG
   scales by its viewBox to fit the chip without overflow on circle/rounded/pill.
   Reduced-motion is handled in view.js (pauseAnimations on the first frame). */
.tdm-ai__launcher-svgwrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: calc(var(--tdm-ai-launcher-size) - 12px);
  height: calc(var(--tdm-ai-launcher-size) - 12px);
  background: #1C1C20;
  border-radius: 50%;
  overflow: hidden;
  flex: none;
}
/* On the pill shape the launcher is wide and shows a label; keep the chip a
   fixed square-ish glyph so it doesn't stretch with the button. */
.tdm-ai__launcher--rounded .tdm-ai__launcher-svgwrap {
  border-radius: calc(var(--tdm-radius, 14px) - 4px);
}
.tdm-ai__launcher-svg {
  display: block;
  width: 86%;
  height: 86%;
  object-fit: contain;
}

/* ---------- floating launcher (position fixed, LEFT-only) ---------- */
/* B3 fix: the shared .tdm-block rule (base.css) sets `isolation: isolate`, which
   creates a stacking context on the FLOATING widget root and TRAPS the fixed
   launcher/panel (z-index 2147483000/001) inside it — so any page element with a
   positive z-index paints over the widget and steals its clicks. The floating
   root is position:relative; z-index:auto and owns no bg image/overlay (its
   ::before/::after fall back to none/transparent), so dropping the stacking
   context is visually safe and lets the fixed layers rise into the ROOT context.
   Scoped to --floating ONLY — the inline variant keeps isolation for band-tone. */
.tdm-ai--floating {
  isolation: auto;
}
.tdm-ai--floating .tdm-ai__inner {
  /* The inner wrapper holds no layout role when floating — the launcher + panel
     are fixed. Keep it from adding section height. */
  display: contents;
}
.tdm-ai--floating .tdm-ai__launcher {
  position: fixed;
  /* B2 fix: sit above ALL page content on a very high, safe z-index so no
     section (e.g. a hero overlay) can cover the launcher. NOTE: a transformed /
     filtered / will-change ancestor creates a stacking context that traps a
     fixed child regardless of z-index — the auto-mount path injects the widget at
     <body> end to avoid that; a placed block must not sit inside such an ancestor. */
  z-index: 2147483000;
  left: var(--tdm-ai-offset-x, 24px);
}
.tdm-ai--floating[data-position="bottom-left"] .tdm-ai__launcher {
  bottom: max(var(--tdm-ai-offset-y, 24px), env(safe-area-inset-bottom));
}
.tdm-ai--floating[data-position="middle-left"] .tdm-ai__launcher {
  top: 50%;
  transform: translateY(-50%);
}
/* Rail drawer — MOBILE-FIRST base (design-spec §5, <480): a full-bleed sheet inset
   8px on all sides. The header + context card + sticky quote bar + composer pin
   (flex:none, Rail distribution below); only the log scrolls. The ≥480 media query
   restores the left/right-docked full-height Rail drawer. The launcher stays fixed
   near its offset anchor; the drawer no longer keys off launcher position. The
   `.tdm-ai--floating{isolation:auto}` fix (above) stays intact so the fixed overlay
   paints above content + receives clicks. */
.tdm-ai--floating .tdm-ai__panel {
  position: fixed;
  z-index: 2147483001;
  top: var(--tdm-space-2, 8px);
  left: var(--tdm-space-2, 8px);
  right: var(--tdm-space-2, 8px);
  bottom: max(var(--tdm-space-2, 8px), env(safe-area-inset-bottom));
  width: auto;
  border-radius: var(--tdmx-radius, var(--tdm-radius-lg, 16px));
  box-shadow: var(--tdm-shadow-lg, 0 12px 40px color-mix(in srgb, #000 45%, transparent));
}
/* Launcher HIDES while the drawer is open (owner 2026-07-11): the standard chat
   pattern — the floating tab disappears on open and returns on minimize/close, so it
   never overlaps in-panel controls. Minimize now lives on the header chevron
   ([data-tdm-ai-minimize]) + Escape. */
.tdm-ai--floating .tdm-ai__launcher[aria-expanded="true"] {
  display: none;
}
/* GAP 1 fix: distribute the capped panel so the header/titlebar stay pinned at the
   top, the input row + turnstile stay pinned at the bottom, and only the
   gate/log/consent region (.tdm-ai__scroll) shrinks + scrolls internally. min-height:0
   is required so the flex child is allowed to shrink below its content height. */
.tdm-ai--floating .tdm-ai__head,
.tdm-ai--floating .tdm-ai__titlebar,
.tdm-ai--floating .tdm-ai__form,
.tdm-ai--floating .tdm-ai__turnstile {
  flex: none;
}
.tdm-ai--floating .tdm-ai__scroll,
.tdm-ai--floating .tdm-ai__offline {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}
/* Bug 1 fix (QA short-viewport clipping): the pre-chat GATE (step=gate) and the
   RATING step (step=rating) are DIRECT flex children of the panel, but they were in
   NEITHER the pinned group nor the scroll group above — so on a short viewport (mobile
   keyboard open → 100dvh shrinks below ~600px) their action buttons (gate-submit /
   rating send+skip) overflowed the max-height-capped panel with NO way to reach them.
   Give each the SAME internal-scroll treatment as .tdm-ai__scroll: the region shrinks
   and scrolls inside the panel, so every control — including the submit at the bottom —
   stays reachable. min-height:0 lets the flex child shrink below its content height.
   NOTE: this scrolls the WHOLE region (the submit scrolls into view rather than being
   pinned flex:none). Full button-PINNING parity with the chat region — an inner
   scroller + a pinned button below it — needs a new inner wrapper element in
   WidgetRenderer.php (see delivery note); it is NOT invented here on non-existent
   markup. Region-scroll already removes the clipping regression with the shipped DOM. */
.tdm-ai--floating .tdm-ai__gate,
.tdm-ai--floating .tdm-ai__rating {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
}
/* A (spec §3.2) — floating panel width, mobile-first on the OFFICIAL breakpoint
   set (responsive_manual_en_0.1.md: min-width ONLY, never max-width). XS base
   (<480) is full-bleed minus the offset gutter (set on the rule above). From
   ≥480 up, the width honours the operator's --tdm-ai-panel-w cap while staying
   inside the viewport. The fluid min() reaches --tdm-ai-panel-w continuously as
   the viewport clears it, so discrete :680 / :768 caps would be byte-identical
   no-ops — omitted on purpose (DRY / specificity discipline). Re-measured on the
   rendered page at 320/480/680/768/1024/1440 by the responsive gate, not asserted
   from this static read. */
@media (min-width: 480px) {
  /* ≥480: the left/right-docked full-height Rail drawer (design-spec §1.2/§5).
     Full height (top 16 → bottom 24), width = operator panel-w (default 400)
     capped to the viewport. Square corners on the dock edge; rounded + free-edge
     shadow on the pulled edge (the only edge with a shadow). */
  .tdm-ai--floating .tdm-ai__panel {
    top: var(--tdm-space-4, 16px);
    bottom: var(--tdm-space-5, 24px);
    left: auto;
    right: auto;
    width: min(var(--tdm-ai-panel-w, 400px), calc(100vw - 2 * var(--tdm-ai-offset-x, 16px)));
  }
  .tdm-ai--floating[data-dock="left"] .tdm-ai__panel {
    left: 0;
    right: auto;
    border-radius: 0 var(--tdmx-radius, var(--tdm-radius-lg, 16px)) var(--tdmx-radius, var(--tdm-radius-lg, 16px)) 0;
    box-shadow: 12px 0 40px color-mix(in srgb, #000 45%, transparent);
  }
  .tdm-ai--floating[data-dock="right"] .tdm-ai__panel {
    right: 0;
    left: auto;
    border-radius: var(--tdmx-radius, var(--tdm-radius-lg, 16px)) 0 0 var(--tdmx-radius, var(--tdm-radius-lg, 16px));
    box-shadow: -12px 0 40px color-mix(in srgb, #000 45%, transparent);
  }
}

/* ---------- panel ---------- */
.tdm-ai__panel {
  width: 100%;
  /* Inline (embedded) panel follows the same operator width token as the floating
     variant, so the two modes stay visually consistent (A, spec §3.2). */
  max-width: var(--tdm-ai-panel-w, 32rem);
  display: flex;
  flex-direction: column;
  border: 1px solid color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 14%, transparent);
  border-radius: var(--tdmx-radius, var(--tdm-radius-lg, 16px));
  background: var(--tdm-color-surface-2, #141416);
  overflow: hidden;
}
.tdm-ai__panel[hidden] {
  display: none;
}

/* ---------- step machine (A, spec §3.1) ----------
   `data-step` on the panel is the SINGLE source of truth for which region shows.
   Exactly one of gate / chatregion / rating is visible per step; the step swap is
   an instant display change (no transition needed, so no reduced-motion branch).
   Specificity here is (0,3,0) — it beats each region's own base display (0,1,0),
   so no per-element `hidden` juggling is required. */
.tdm-ai__panel[data-step="gate"] .tdm-ai__chatregion,
.tdm-ai__panel[data-step="gate"] .tdm-ai__rating,
.tdm-ai__panel[data-step="chat"] .tdm-ai__gate,
.tdm-ai__panel[data-step="chat"] .tdm-ai__rating,
.tdm-ai__panel[data-step="rating"] .tdm-ai__gate,
.tdm-ai__panel[data-step="rating"] .tdm-ai__chatregion {
  display: none;
}
/* Scroll region wrapping the gate + message log + consent gate. In inline mode it
   is a plain vertical stack (no visible effect); in floating mode it becomes the
   single internal scroller so a tall gate never pushes fields off-screen (GAP 1). */
.tdm-ai__scroll {
  display: flex;
  flex-direction: column;
}

.tdm-ai__head {
  display: flex;
  align-items: center;
  gap: var(--tdm-space-3, 12px);
  padding: var(--tdm-space-4, 16px) var(--tdm-space-5, 24px);
  border-bottom: 1px solid color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 12%, transparent);
}
.tdm-ai__head-avatar {
  flex: none;
  display: inline-flex;
}
.tdm-ai__head-avatar img {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.tdm-ai__head-id {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.tdm-ai__head-name {
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, system-ui, sans-serif));
  font-size: var(--tdm-text-h4, clamp(16px, 2vw, 18px));
  font-weight: var(--tdm-weight-headline, 600);
  line-height: 1.2;
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__head-subtitle {
  margin-top: 2px;
  font-family: var(--tdm-font-mono, "DM Mono", ui-monospace, monospace);
  font-size: var(--tdm-text-small, 12px);
  line-height: 1.3;
  color: color-mix(in srgb, var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA)) 85%, transparent);
}
/* Title bar (header_title) — the accent strip under the header. */
.tdm-ai__titlebar {
  padding: var(--tdm-space-2, 8px) var(--tdm-space-5, 24px);
  border-bottom: 2px solid var(--tdm-ai-accent);
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 13px);
  font-weight: 600;
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__close,
.tdm-ai__minimize {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex: none;
  border: none;
  background: transparent;
  color: var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA));
  border-radius: var(--tdm-radius-sm, 8px);
  cursor: pointer;
  transition: background var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__close:hover,
.tdm-ai__minimize:hover {
  background: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 8%, transparent);
}
.tdm-ai__close:focus-visible,
.tdm-ai__minimize:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}

/* ---------- message log ---------- */
.tdm-ai__log {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-3, 12px);
  padding: var(--tdm-space-5, 24px);
  max-height: 24rem;
  overflow-y: auto;
}
.tdm-ai__msg {
  display: flex;
  max-width: 100%;
}
.tdm-ai__msg--user {
  justify-content: flex-end;
}
.tdm-ai__msg--assistant {
  justify-content: flex-start;
}
.tdm-ai__bubble {
  max-width: 90%;
  padding: var(--tdm-space-3, 12px) var(--tdm-space-4, 16px);
  border-radius: var(--tdm-radius, 12px);
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  line-height: 1.55;
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
  background: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 7%, transparent);
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.tdm-ai__msg--user .tdm-ai__bubble {
  background: color-mix(in srgb, var(--tdm-ai-accent) 18%, transparent);
}

/* Typing indicator (cosmetic; reduced-motion disables the animation). */
.tdm-ai__typing {
  display: inline-flex;
  gap: 4px;
  align-items: center;
}
.tdm-ai__typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA));
  opacity: 0.5;
  animation: tdm-ai-blink 1.2s infinite ease-in-out;
}
.tdm-ai__typing span:nth-child(2) { animation-delay: 0.2s; }
.tdm-ai__typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes tdm-ai-blink {
  0%, 80%, 100% { opacity: 0.3; }
  40% { opacity: 1; }
}

/* ---------- consent gate ---------- */
.tdm-ai__consent {
  margin: 0;
  padding: 0 var(--tdm-space-5, 24px);
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 13px);
  line-height: 1.5;
  color: color-mix(in srgb, var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA)) 80%, transparent);
}
.tdm-ai__consent[hidden] {
  display: none;
}
.tdm-ai__consent-label {
  display: flex;
  align-items: flex-start;
  gap: var(--tdm-space-2, 8px);
  /* The whole row is a tap target; the box meets the 44px floor on its own. */
  min-height: 44px;
  padding: var(--tdm-space-1, 4px) 0;
  cursor: pointer;
}
.tdm-ai__consent-box {
  flex: none;
  width: 20px;
  height: 20px;
  margin: 0;
  /* Generous hit area around the 20px control so the row clears 44px. */
  padding: 12px;
  margin: -12px;
  accent-color: var(--tdm-ai-accent);
  cursor: pointer;
}
.tdm-ai__consent-box:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
  border-radius: var(--tdm-radius-sm, 8px);
}
.tdm-ai__consent-text {
  flex: 1 1 auto;
}
.tdm-ai__consent-link {
  /* Bug 2: AA-safe derived link colour (never the raw operator accent). */
  color: var(--tdm-ai-link-safe, var(--tdm-ai-accent));
  text-decoration: underline;
  text-underline-offset: 2px;
}
.tdm-ai__consent-link:hover {
  text-decoration: none;
}
.tdm-ai__consent-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
  border-radius: var(--tdm-radius-sm, 8px);
}
/* Required-but-empty state when a send is attempted without consent. */
.tdm-ai__consent--required .tdm-ai__consent-text {
  /* Bug 2: accent-as-text at 13px → route through the AA-safe derived colour. */
  color: var(--tdm-ai-link-safe, var(--tdm-ai-accent));
  font-weight: 600;
}
.tdm-ai__consent--required .tdm-ai__consent-box {
  outline: 2px solid var(--tdm-ai-accent);
  outline-offset: 2px;
  border-radius: var(--tdm-radius-sm, 8px);
}
/* GAP 2 fix: visible inline validation message revealed when Send is pressed with
   consent unchecked. Injected + toggled in view.js (role="alert"). Accent colour
   matches the required-state text and stays legible on both bands (the accent is
   routed through --tdm-ai-accent, per band-tone Lesson 6). */
.tdm-ai__consent-error {
  margin: var(--tdm-space-1, 4px) 0 0;
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 13px);
  font-weight: 600;
  line-height: 1.4;
  /* Bug 2: accent-as-text at 13px → route through the AA-safe derived colour. */
  color: var(--tdm-ai-link-safe, var(--tdm-ai-accent));
}
.tdm-ai__consent-error[hidden] {
  display: none;
}

/* ---------- U4 pre-chat contact gate (spec §9) ---------- */
.tdm-ai__gate {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-3, 12px);
  padding: var(--tdm-space-5, 24px);
}
.tdm-ai__gate[hidden] {
  display: none;
}
.tdm-ai__gate-intro {
  margin: 0;
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 14px);
  line-height: 1.5;
  color: color-mix(in srgb, var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA)) 85%, transparent);
}
.tdm-ai__gate-field {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-1, 4px);
}
.tdm-ai__gate-label {
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 13px);
  font-weight: 600;
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__gate-input {
  width: 100%;
  min-height: 44px;
  padding: var(--tdm-space-3, 12px) var(--tdm-space-4, 16px);
  border: 1px solid color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 16%, transparent);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-color-surface, #0E0E10);
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  line-height: 1.45;
}
.tdm-ai__gate-input::placeholder {
  color: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 45%, transparent);
}
.tdm-ai__gate-input:focus-visible {
  outline: none;
  border-color: var(--tdm-ai-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 35%, transparent);
}
.tdm-ai__gate-input[aria-invalid="true"] {
  border-color: var(--tdm-ai-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 35%, transparent);
}

/* ---------- floating labels (B, spec §4.2) ----------
   Markup order is <input placeholder=" "> THEN <label for> (a real, programmatic
   label kept for a11y — WCAG 2.2 / axe), so `input + label` adjacency drives the
   float. The label rests OVER the input (looks like a placeholder) and lifts +
   shrinks on focus OR when the field is non-empty (`:not(:placeholder-shown)`,
   the placeholder=" " making the empty state detectable). Composite-only
   transform + font-size; the transition is reduced-motion-gated below (the end
   state still applies instantly). Top padding is reserved on the input so the
   lifted label never overlaps the typed value. The existing [aria-invalid] state
   is untouched. */
.tdm-ai__gate-field--float {
  position: relative;
  gap: 0; /* label is absolutely positioned — no flow gap */
}
.tdm-ai__gate-field--float .tdm-ai__gate-input {
  /* reserve room at the top for the lifted label */
  padding-block: calc(var(--tdm-space-5, 24px) - 2px) var(--tdm-space-2, 8px);
}
.tdm-ai__gate-field--float .tdm-ai__gate-label {
  position: absolute;
  inset-inline-start: calc(var(--tdm-space-4, 16px) + 1px); /* input padding-inline + 1px border */
  top: 50%;
  transform: translateY(-50%);
  transform-origin: left center;
  margin: 0;
  pointer-events: none; /* clicks pass through to the input */
  font-weight: 500;
  font-size: var(--tdm-text-body, 16px); /* matches the input while resting */
  /* Resting = placeholder-like tone; still AA-legible on the panel surface. */
  color: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 58%, transparent);
  transition: transform var(--tdm-motion-fast, 160ms) ease, color var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__gate-field--float .tdm-ai__gate-input:focus + .tdm-ai__gate-label,
.tdm-ai__gate-field--float .tdm-ai__gate-input:not(:placeholder-shown) + .tdm-ai__gate-label {
  transform: translateY(calc(-50% - 0.85rem)) scale(0.78);
  font-weight: 600;
  /* Floated = full-strength ink (AA on the panel surface). */
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__gate-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: var(--tdm-space-1, 4px);
  padding: var(--tdm-space-2, 8px) var(--tdm-space-5, 24px);
  border: 1px solid var(--tdm-ai-accent);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-ai-accent);
  color: #FFFFFF;
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__gate-submit:hover {
  background: color-mix(in srgb, var(--tdm-ai-accent) 86%, #000);
}
.tdm-ai__gate-submit:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}

/* ---------- input form ---------- */
.tdm-ai__form {
  display: flex;
  align-items: flex-end;
  gap: var(--tdm-space-2, 8px);
  padding: var(--tdm-space-4, 16px) var(--tdm-space-5, 24px) var(--tdm-space-5, 24px);
}
.tdm-ai__input {
  flex: 1 1 auto;
  min-height: 44px;
  padding: var(--tdm-space-3, 12px) var(--tdm-space-4, 16px);
  border: 1px solid color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 16%, transparent);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-color-surface, #0E0E10);
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  line-height: 1.45;
  resize: none;
}
.tdm-ai__input::placeholder {
  color: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 45%, transparent);
}
.tdm-ai__input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.tdm-ai__input:focus-visible {
  outline: none;
  border-color: var(--tdm-ai-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 35%, transparent);
}
.tdm-ai__send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex: none;
  border: 1px solid var(--tdm-ai-accent);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-ai-accent);
  color: #FFFFFF;
  cursor: pointer;
  transition: background var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__send:hover {
  background: color-mix(in srgb, var(--tdm-ai-accent) 86%, #000);
}
.tdm-ai__send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.tdm-ai__send:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}

/* ---------- turnstile slot ---------- */
.tdm-ai__turnstile {
  padding: 0 var(--tdm-space-5, 24px) var(--tdm-space-4, 16px);
}
.tdm-ai__turnstile[hidden] {
  display: none;
}
.tdm-ai__note {
  margin: 0;
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 13px);
  line-height: 1.5;
  color: color-mix(in srgb, var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA)) 80%, transparent);
}

/* ---------- offline fallback ---------- */
.tdm-ai__offline {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-4, 16px);
  padding: var(--tdm-space-5, 24px);
}
.tdm-ai__contact,
.tdm-ai__cta {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 44px;
  padding: var(--tdm-space-2, 8px) var(--tdm-space-5, 24px);
  border-radius: var(--tdmx-radius, var(--tdm-radius-pill, 999px));
  background: var(--tdm-ai-accent);
  color: #FFFFFF;
  text-decoration: none;
  font-weight: 600;
}
.tdm-ai__contact:hover,
.tdm-ai__cta:hover {
  background: color-mix(in srgb, var(--tdm-ai-accent) 86%, #000);
}

/* ---------- rating region (D, spec §5.3) ----------
   Shown only at data-step="rating" (step machine above). 5 accessible stars: the
   radio is visually-hidden + present in the DOM BEFORE its label, so `+`/`~`
   sibling selectors drive the fill without any JS. `.tdm-ai__rating-star` is the
   ≥44px tap target; `.tdm-ai__rating-star-icon` is the 28px glyph. Fill colour =
   the widget's shared --tdm-ai-accent (legible on both bands); empty = the
   --tdm-ai-star-empty var (re-toned on the light band). Buttons reuse the primary
   (send) / text (skip) styles already established for this widget. */
.tdm-ai__rating {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-4, 16px);
  padding: var(--tdm-space-5, 24px);
}
.tdm-ai__rating-intro {
  margin: 0;
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, system-ui, sans-serif));
  font-size: var(--tdm-text-h4, clamp(16px, 2vw, 18px));
  font-weight: var(--tdm-weight-headline, 600);
  line-height: 1.3;
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__rating-stars {
  display: flex;
  gap: var(--tdm-space-1, 4px);
}
.tdm-ai__rating-star {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  cursor: pointer;
  color: var(--tdm-ai-star-empty);
  transition: color var(--tdm-motion-fast, 160ms) ease, transform var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__rating-star-icon {
  display: block;
  width: 28px;
  height: 28px;
}
/* Checked fill (persistent) — the checked star + every star BEFORE it. Gated by
   :not(:hover) on the group so a hover preview (below) fully takes over while the
   pointer is down, with no specificity fight. */
.tdm-ai__rating-stars:not(:hover) .tdm-ai__rating-radio:checked + .tdm-ai__rating-star,
.tdm-ai__rating-stars:not(:hover) .tdm-ai__rating-star:has(~ .tdm-ai__rating-radio:checked) {
  color: var(--tdm-ai-accent);
}
/* Hover preview — the hovered star + every star before it, while the group is
   hovered (`~ .tdm-ai__rating-star:hover` reaches earlier siblings). */
.tdm-ai__rating-stars:hover .tdm-ai__rating-star:hover,
.tdm-ai__rating-stars:hover .tdm-ai__rating-star:has(~ .tdm-ai__rating-star:hover) {
  color: var(--tdm-ai-accent);
}
.tdm-ai__rating-star:hover {
  transform: scale(1.06);
}
/* Keyboard focus ring surfaced through the visually-hidden radio. */
.tdm-ai__rating-radio:focus-visible + .tdm-ai__rating-star {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 45%, transparent);
  border-radius: var(--tdm-radius-sm, 8px);
}
.tdm-ai__rating-comment-field {
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-1, 4px);
}
.tdm-ai__rating-comment-label {
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 13px);
  font-weight: 600;
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__rating-comment {
  width: 100%;
  min-height: 72px;
  padding: var(--tdm-space-3, 12px) var(--tdm-space-4, 16px);
  border: 1px solid color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 16%, transparent);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-color-surface, #0E0E10);
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  line-height: 1.5;
  resize: vertical;
}
.tdm-ai__rating-comment::placeholder {
  color: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 45%, transparent);
}
.tdm-ai__rating-comment:focus-visible {
  outline: none;
  border-color: var(--tdm-ai-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 35%, transparent);
}
.tdm-ai__rating-actions {
  display: flex;
  align-items: center;
  gap: var(--tdm-space-3, 12px);
}
/* Send = primary button (mirrors .tdm-ai__gate-submit). */
.tdm-ai__rating-send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--tdm-space-2, 8px) var(--tdm-space-5, 24px);
  border: 1px solid var(--tdm-ai-accent);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-ai-accent);
  color: #FFFFFF;
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__rating-send:hover {
  background: color-mix(in srgb, var(--tdm-ai-accent) 86%, #000);
}
.tdm-ai__rating-send:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}
/* Skip = quiet text button (secondary affordance), still a ≥44px target. */
.tdm-ai__rating-skip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--tdm-space-2, 8px) var(--tdm-space-4, 16px);
  border: none;
  background: transparent;
  color: var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA));
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-body, 16px);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  border-radius: var(--tdm-radius-sm, 8px);
  cursor: pointer;
}
.tdm-ai__rating-skip:hover {
  text-decoration: none;
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
}
.tdm-ai__rating-skip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}

/* ---------- a11y helper ---------- */
.tdm-ai__visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ======================================================================
   Attention nudge — tooltip bubble + pulse ring + unread dot.
   Composite-only (opacity / transform). Reduced-motion handled below.
   ====================================================================== */
.tdm-ai__nudge[hidden] { display: none; }

/* tooltip bubble — appears next to the launcher. */
.tdm-ai__nudge--tooltip {
  position: relative;
  max-width: 230px;
  margin-bottom: var(--tdm-space-2, 8px);
  padding: var(--tdm-space-3, 12px) var(--tdm-space-6, 32px) var(--tdm-space-3, 12px) var(--tdm-space-4, 16px);
  border: 1px solid color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 14%, transparent);
  border-radius: var(--tdm-radius, 14px);
  background: var(--tdm-color-surface-2, #141416);
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
  font-family: var(--tdmx-font-body, var(--tdm-font-body, "DM Sans", system-ui, sans-serif));
  font-size: var(--tdm-text-small, 14px);
  line-height: 1.45;
  box-shadow: 0 8px 26px rgba(0,0,0,0.45);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--tdm-motion-normal, 250ms) ease, transform var(--tdm-motion-normal, 250ms) ease;
}
.tdm-ai__nudge--tooltip.is-shown {
  opacity: 1;
  transform: translateY(0);
}
/* In floating mode the tooltip is fixed just above the launcher (left side). */
.tdm-ai--floating .tdm-ai__nudge--tooltip {
  position: fixed;
  z-index: 2147483000;
  left: var(--tdm-ai-offset-x, 24px);
  max-width: min(230px, calc(100vw - 40px));
}
.tdm-ai--floating[data-position="bottom-left"] .tdm-ai__nudge--tooltip {
  bottom: calc(max(var(--tdm-ai-offset-y, 24px), env(safe-area-inset-bottom)) + var(--tdm-ai-launcher-size) + var(--tdm-space-3, 12px));
}
.tdm-ai--floating[data-position="middle-left"] .tdm-ai__nudge--tooltip {
  top: calc(50% - var(--tdm-ai-launcher-size));
}
.tdm-ai__nudge-text { display: block; }
.tdm-ai__nudge-close {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--tdmx-text, var(--tdm-color-ink-2, #B0B0BA));
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  border-radius: var(--tdm-radius-sm, 8px);
}
.tdm-ai__nudge-close:hover {
  background: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 8%, transparent);
}
.tdm-ai__nudge-close:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}

/* pulse ring — a finite, gentle ring around the launcher while nudging. */
.tdm-ai--nudge-pulse .tdm-ai__launcher {
  position: relative;
}
.tdm-ai--nudge-pulse .tdm-ai__launcher::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid var(--tdm-ai-accent);
  opacity: 0.7;
  animation: tdm-ai-pulse 1.6s ease-out 3;
  pointer-events: none;
}
@keyframes tdm-ai-pulse {
  0%   { transform: scale(1);    opacity: 0.7; }
  100% { transform: scale(1.6);  opacity: 0; }
}

/* unread dot — a small badge on the launcher. */
.tdm-ai--nudge-dot .tdm-ai__launcher::before {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--tdm-ai-accent);
  border: 2px solid var(--tdm-color-surface, #0E0E10);
  pointer-events: none;
}

/* ======================================================================
   Band-tone — LIGHT band re-tones the opaque inner surfaces (Lesson 6).
   Plain attribute selector (specificity 0,1,1), never :where(). Dark band is
   the default (no attr) and needs no override. The accent flows through
   --tdm-ai-accent so the orange stays legible on both bands.
   ====================================================================== */
.tdm-block[data-band="light"].tdm-ai .tdm-ai__panel {
  background: color-mix(in srgb, #000 2%, #FFFFFF);
  border-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 14%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__head {
  border-bottom-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 12%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__head-name,
.tdm-block[data-band="light"].tdm-ai .tdm-ai__titlebar {
  color: var(--tdmx-heading, var(--tdm-color-surface, #0E0E10));
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__head-subtitle {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 65%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__nudge--tooltip {
  background: color-mix(in srgb, #000 2%, #FFFFFF);
  color: var(--tdm-color-surface, #0E0E10);
  border-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 14%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__bubble {
  color: var(--tdmx-text, var(--tdm-color-surface, #0E0E10));
  background: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 6%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__msg--user .tdm-ai__bubble {
  background: color-mix(in srgb, var(--tdm-ai-accent) 16%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__close,
.tdm-block[data-band="light"].tdm-ai .tdm-ai__minimize {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 70%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__input {
  background: color-mix(in srgb, #000 4%, #FFFFFF);
  color: var(--tdm-color-surface, #0E0E10);
  border-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 18%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__input::placeholder {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 45%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__consent,
.tdm-block[data-band="light"].tdm-ai .tdm-ai__note {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 65%, transparent);
}
/* U4 gate re-tones on the light band (Lesson 6 — plain attribute selector). */
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-intro {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 70%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-label {
  color: var(--tdmx-text, var(--tdm-color-surface, #0E0E10));
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-input {
  background: color-mix(in srgb, #000 4%, #FFFFFF);
  color: var(--tdm-color-surface, #0E0E10);
  border-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 18%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-input::placeholder {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 45%, transparent);
}
/* Bug 2 (light band): the panel is near-white here, so the safe-link derivation is
   FLIPPED to DARKEN the accent toward the dark surface (instead of lightening toward
   ink on the dark band). 52% surface keeps the accent hue while realistic accents land
   ~5-11:1; a near-white accent is a degenerate operator choice (an invisible launcher —
   the Personalize UI already warns to aim for AA) and is out of scope. Verified by WCAG
   calc for blue/orange/yellow on the ~#FAFAFA light-band panel. */
.tdm-block[data-band="light"].tdm-ai {
  --tdm-ai-link-safe: color-mix(in srgb, var(--tdm-ai-accent) 48%, var(--tdm-color-surface, #0E0E10));
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__consent-link,
.tdm-block[data-band="light"].tdm-ai .tdm-ai__consent--required .tdm-ai__consent-text,
.tdm-block[data-band="light"].tdm-ai .tdm-ai__consent-error {
  color: var(--tdm-ai-link-safe, var(--tdm-ai-accent));
}
/* Floating labels (B) re-tone on the light band — rest = placeholder-like on the
   light surface, floated = full-strength dark ink (both AA). */
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-field--float .tdm-ai__gate-label {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 58%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-field--float .tdm-ai__gate-input:focus + .tdm-ai__gate-label,
.tdm-block[data-band="light"].tdm-ai .tdm-ai__gate-field--float .tdm-ai__gate-input:not(:placeholder-shown) + .tdm-ai__gate-label {
  color: var(--tdmx-text, var(--tdm-color-surface, #0E0E10));
}
/* Rating region (D) re-tones on the light band (accent fill stays orange). */
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-stars {
  --tdm-ai-star-empty: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 26%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-intro {
  color: var(--tdmx-heading, var(--tdm-color-surface, #0E0E10));
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-comment-label {
  color: var(--tdmx-text, var(--tdm-color-surface, #0E0E10));
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-comment {
  background: color-mix(in srgb, #000 4%, #FFFFFF);
  color: var(--tdm-color-surface, #0E0E10);
  border-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 18%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-comment::placeholder {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 45%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-skip {
  color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 70%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__rating-skip:hover {
  color: var(--tdm-color-surface, #0E0E10);
}

/* ======================================================================
   prefers-reduced-motion — disable all non-essential animation (HARD gate).
   ====================================================================== */
@media (prefers-reduced-motion: reduce) {
  .tdm-ai__launcher,
  .tdm-ai__close,
  .tdm-ai__minimize,
  .tdm-ai__send {
    transition: none;
  }
  /* B — floating label: keep the lifted END state, drop the motion. */
  .tdm-ai__gate-field--float .tdm-ai__gate-label {
    transition: none;
  }
  /* D — rating stars: no colour/scale transition, no hover pop. */
  .tdm-ai__rating-star,
  .tdm-ai__rating-send {
    transition: none;
  }
  .tdm-ai__rating-star:hover {
    transform: none;
  }
  .tdm-ai__typing span {
    animation: none;
    opacity: 0.6;
  }
  /* Nudge: no motion. Pulse ring is killed; the tooltip still appears (it is not
     motion-essential) but without the slide-in transform. */
  .tdm-ai--nudge-pulse .tdm-ai__launcher::after {
    animation: none;
    opacity: 0;
  }
  .tdm-ai__nudge--tooltip {
    transition: none;
    transform: none;
  }
  .tdm-ai__nudge--tooltip.is-shown {
    transform: none;
  }
  /* Animated launcher icon: show the STATIC poster, hide the animated source
     (zero motion). When no poster is set, the animated frame is left in place
     but its decode-as-animation is the browser's call — we hide it only when a
     poster exists, so the icon never disappears. */
  .tdm-ai__launcher-animated:has(.tdm-ai__launcher-anim-poster) .tdm-ai__launcher-anim-img {
    display: none;
  }
  .tdm-ai__launcher-animated .tdm-ai__launcher-anim-poster {
    opacity: 1;
  }
  /* Bundled animated-svg icon: SMIL animation does NOT respond to CSS, so the
     freeze (pauseAnimations + setCurrentTime(0) on the first frame) is performed
     in view.js. Nothing to disable here beyond suppressing any wrap transition. */
  .tdm-ai__launcher-svgwrap,
  .tdm-ai__launcher-svg {
    transition: none;
  }
}

/* ======================================================================
   RAIL REDESIGN (design-spec-ai-chat-rail-v2). Additive section: persistent
   page-context card, header status dot, sticky quote bar, orange left-rail
   bubbles, full-height drawer distribution + Rail motion. All composite-only,
   reduced-motion gated at the end.
   ====================================================================== */

/* ---------- full-height distribution ---------- */
/* The drawer is a flex column (panel). In Rail the header + context card pin at
   top, the chat region fills + scrolls internally, and the sticky quote bar +
   composer pin at the bottom of the chat region. min-height:0 lets flex children
   shrink below content height so the inner scroller works. The titlebar is hidden
   (the context card carries the page signal) but kept in the DOM for the
   light-band re-tone selectors. */
.tdm-ai__titlebar {
  display: none;
}
.tdm-ai__chatregion {
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.tdm-ai--floating .tdm-ai__context,
.tdm-ai--floating .tdm-ai__quotebar {
  flex: none;
}
.tdm-ai--floating .tdm-ai__chatregion {
  flex: 1 1 auto;
  min-height: 0;
}
/* In the drawer the log fills its scroller rather than capping at 24rem. */
.tdm-ai--floating .tdm-ai__log {
  max-height: none;
}

/* ---------- header status dot (§1.3) ---------- */
/* 8px dot before the subtitle. Stacked amber (AI) + green (agent) dots cross-fade
   opacity on takeover — composite, never background-color (motion-spec fix #3). */
.tdm-ai__head-subtitle {
  display: inline-flex;
  align-items: center;
  gap: var(--tdm-space-2, 8px);
}
.tdm-ai__status-dot {
  position: relative;
  flex: none;
  width: 8px;
  height: 8px;
}
.tdm-ai__status-dot::before,
.tdm-ai__status-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
}
.tdm-ai__status-dot::before {
  background: var(--tdm-ai-accent);
  opacity: 1;
  transition: opacity var(--tdm-motion-normal, 250ms) ease;
}
.tdm-ai__status-dot::after {
  background: var(--tdm-ai-status-online, #35C77E);
  opacity: 0;
  transition: opacity var(--tdm-motion-normal, 250ms) ease;
}
.tdm-ai--takeover .tdm-ai__status-dot::before { opacity: 0; }
.tdm-ai--takeover .tdm-ai__status-dot::after { opacity: 1; }

/* ---------- persistent page-context card (§1.4 / §2) ---------- */
.tdm-ai__context {
  position: relative;
  margin: var(--tdm-space-4, 16px) var(--tdm-space-5, 24px) 0;
  padding: var(--tdm-space-4, 16px);
  padding-left: calc(var(--tdm-space-4, 16px) + 4px);
  border: 1px solid var(--tdm-hairline, color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 14%, transparent));
  border-radius: var(--tdm-radius-lg, 12px);
  background: var(--tdm-color-surface-3, #1C1C20);
}
/* 2px accent left-rail; turns green on takeover. */
.tdm-ai__context::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  border-radius: 2px 0 0 2px;
  background: var(--tdm-ai-accent);
  transition: background var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai--takeover .tdm-ai__context::before {
  background: var(--tdm-ai-status-online, #35C77E);
}
.tdm-ai__context-page[hidden],
.tdm-ai__context-agent[hidden] {
  display: none;
}
.tdm-ai__context-eyebrow {
  display: block;
  font-family: var(--tdm-font-mono, "General Sans", system-ui, sans-serif);
  font-size: var(--tdm-text-eyebrow, 11px);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--tdm-ai-accent-text-safe, var(--tdm-ai-accent));
}
.tdm-ai__context-eyebrow--live {
  color: var(--tdm-ai-status-online, #35C77E);
}
.tdm-ai__context-body {
  display: flex;
  align-items: center;
  gap: var(--tdm-space-3, 12px);
  margin-top: var(--tdm-space-2, 8px);
}
.tdm-ai__context-thumb {
  flex: none;
  display: inline-flex;
}
.tdm-ai__context-thumb img {
  display: block;
  width: 52px;
  height: 52px;
  border-radius: var(--tdm-radius-sm, 8px);
  object-fit: cover;
}
.tdm-ai__context-agent-avatar {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--tdm-ai-status-online, #35C77E) 22%, var(--tdm-color-surface-3, #1C1C20));
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
  font-family: var(--tdm-font-mono, "General Sans", system-ui, sans-serif);
  font-size: 13px;
  font-weight: 600;
}
.tdm-ai__context-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--tdm-space-1, 4px);
}
.tdm-ai__context-title {
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, system-ui, sans-serif));
  font-size: 17px;
  font-weight: var(--tdm-weight-headline, 600);
  line-height: 1.25;
  color: var(--tdmx-heading, var(--tdm-color-ink, #F5F4F0));
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tdm-ai__context-sub {
  font-family: var(--tdm-font-mono, "General Sans", system-ui, sans-serif);
  font-size: var(--tdm-text-caption, 12px);
  line-height: 1.3;
  color: var(--tdm-ai-meta, #909099);
}
.tdm-ai__context-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tdm-space-1, 6px);
}
.tdm-ai__context-chip {
  font-family: var(--tdm-font-mono, "General Sans", system-ui, sans-serif);
  font-size: var(--tdm-text-eyebrow, 11px);
  line-height: 1;
  padding: 5px 8px;
  border-radius: var(--tdm-radius-sm, 4px);
  color: var(--tdmx-text, var(--tdm-color-ink, #F5F4F0));
  background: color-mix(in srgb, var(--tdm-color-ink, #F5F4F0) 10%, transparent);
}

/* ---------- sticky quote bar (§1.6) ---------- */
.tdm-ai__quotebar {
  padding: var(--tdm-space-3, 12px) var(--tdm-space-5, 24px) 0;
}
.tdm-ai__quotebar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--tdm-space-2, 8px);
  width: 100%;
  min-height: 48px;
  padding: var(--tdm-space-2, 8px) var(--tdm-space-4, 16px);
  border-radius: var(--tdm-radius, 12px);
  background: var(--tdm-ai-accent);
  color: #FFFFFF;
  text-decoration: none;
  font-family: var(--tdmx-font-heading, var(--tdm-font-headline, system-ui, sans-serif));
  font-size: 15px;
  font-weight: 600;
  transition: background var(--tdm-motion-fast, 160ms) ease, transform var(--tdm-motion-fast, 160ms) ease;
}
.tdm-ai__quotebar-btn:hover {
  background: color-mix(in srgb, var(--tdm-ai-accent) 88%, #000);
  transform: translateY(-2px);
}
.tdm-ai__quotebar-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-ai-accent) 55%, transparent);
}
.tdm-ai__quotebar-arrow {
  flex: none;
}

/* ---------- bubbles: orange left-rail (§1.5) ---------- */
/* The Rail signature in the log: a 2px accent left-rail on assistant bubbles.
   Note-variant bubbles keep the neutral look (no rail) per design-spec §3 #6. */
.tdm-ai__msg--assistant .tdm-ai__bubble {
  border-left: 2px solid var(--tdm-ai-accent);
  border-top-left-radius: var(--tdm-radius-sm, 4px);
  border-bottom-left-radius: var(--tdm-radius-sm, 4px);
}
.tdm-ai__msg--assistant .tdm-ai__bubble--note {
  border-left: 0;
  border-top-left-radius: var(--tdm-radius, 12px);
  border-bottom-left-radius: var(--tdm-radius, 12px);
}

/* ---------- Rail motion (motion-spec §1) ---------- */
/* Signature drawer slide-in: translateX(-100%/100% → 0) + opacity, decelerate.
   Runs each time the panel is re-shown (display flips from none). Composite-only;
   animate translateX, never left/width. */
.tdm-ai--floating .tdm-ai__panel:not([hidden]) {
  animation-duration: var(--tdm-dur-base, 250ms);
  animation-timing-function: var(--tdm-ease-emphatic, cubic-bezier(0.16, 1, 0.3, 1));
  animation-fill-mode: both;
}
.tdm-ai--floating[data-dock="left"] .tdm-ai__panel:not([hidden]) {
  animation-name: tdm-ai-drawer-in-left;
}
.tdm-ai--floating[data-dock="right"] .tdm-ai__panel:not([hidden]) {
  animation-name: tdm-ai-drawer-in-right;
}
@keyframes tdm-ai-drawer-in-left {
  from { transform: translateX(-100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}
@keyframes tdm-ai-drawer-in-right {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}
/* Micro: message-in translateY(8px→0) + opacity, one-shot. */
.tdm-ai__msg {
  animation: tdm-ai-msg-in var(--tdm-dur-base, 250ms) var(--tdm-ease-emphatic, cubic-bezier(0.16, 1, 0.3, 1)) both;
}
@keyframes tdm-ai-msg-in {
  from { transform: translateY(8px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ======================================================================
   RAIL band-tone — LIGHT band re-tones the new Rail surfaces (Lesson 6).
   Plain attribute selector (specificity 0,2,1), never :where(). Accent FILLS
   (quote bar, status dot, left-rail) are label-vs-fill pairs → band-independent;
   only accent-AS-TEXT (eyebrow, meta) remaps.
   ====================================================================== */
.tdm-block[data-band="light"].tdm-ai {
  /* Eyebrow / small accent text → burnt on cream (design-spec §5). Meta darkens. */
  --tdm-ai-accent-text-safe: var(--tdm-color-accent-text-light, #B0470B);
  /* 65% (raised from 55%): the composited 12px meta on the light card computes
     ~5.8:1 (#F0F0F0 card) / ~5.9:1 (#FAFAFA) = AA body PASS (55% landed ~4.1:1). */
  --tdm-ai-meta: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 65%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__context {
  background: color-mix(in srgb, #000 6%, #FFFFFF);
  border-color: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 14%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__context-title {
  color: var(--tdmx-heading, var(--tdm-color-surface, #0E0E10));
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__context-chip {
  color: var(--tdm-color-surface, #0E0E10);
  background: color-mix(in srgb, var(--tdm-color-surface, #0E0E10) 8%, transparent);
}
.tdm-block[data-band="light"].tdm-ai .tdm-ai__context-agent-avatar {
  color: var(--tdm-color-surface, #0E0E10);
}

/* ---------- Rail reduced-motion (HARD gate) ---------- */
@media (prefers-reduced-motion: reduce) {
  /* Drawer appears instantly at rest; messages instant; dot renders final state;
     quote-bar / accent-bar hold their end colour. Hover lifts are kept. */
  .tdm-ai--floating .tdm-ai__panel:not([hidden]),
  .tdm-ai__msg {
    animation: none !important;
  }
  .tdm-ai__status-dot::before,
  .tdm-ai__status-dot::after,
  .tdm-ai__context::before,
  .tdm-ai__quotebar-btn {
    transition: none;
  }
}


/* ============================================================
   ARECH Footer block — front-end styles.

   Port of the FOOTER in
     prototypes/footer-explore-2026-05-19/footer-A-classic.html
   re-tokenized to the theme tokens (main.css :root) and corrected to the
   responsive standard (responsive_manual_en_0.1):
     • min-width media queries ONLY (no max-width);
     • the prototype's --container-wide:1440 inner becomes the canonical
       container box (--container 1140/1200 + --container-px gutter) so the
       footer caps identically to the navbar + page content;
     • subtle white hairlines use color-mix() (modern CSS, S72 direction);
     • small body text uses --muted-accessible / --light for WCAG AA contrast
       (the prototype's flat --muted #6b6b75 fails 4.5:1 on --dark-2).

   ALL rules are scoped under `.arech-footer` so nothing leaks into the theme.
   ============================================================ */

.arech-footer {
    background: var(--dark-2);
    border-top: 1px solid color-mix(in oklch, var(--white) 4%, transparent);
    padding-block: var(--space-9) var(--space-7);
    color: var(--light);
    font-family: var(--font-body);
}

.arech-footer__inner {
    max-width: calc(var(--container) + 2 * var(--container-px));
    margin-inline: auto;
    padding-inline: var(--container-px);
}

/* -------- COLUMN GRID -------- */
.arech-footer__cols {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}
@media (min-width: 768px) {
    .arech-footer__cols {
        grid-template-columns: 1fr 1fr 1fr;
        grid-template-areas:
            "brand brand brand"
            "products company legal";
        gap: var(--space-5);
    }
    .arech-footer__col--brand    { grid-area: brand; }
    .arech-footer__col--products { grid-area: products; }
    .arech-footer__col--company  { grid-area: company; }
    .arech-footer__col--legal    { grid-area: legal; }
}
@media (min-width: 1024px) {
    .arech-footer__cols {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        grid-template-areas: "brand products company legal";
        gap: var(--space-6);
    }
}

/* Discrete vertical separators sitting in the middle of the column gap. */
@media (min-width: 768px) {
    .arech-footer__col--company,
    .arech-footer__col--legal { position: relative; }
    .arech-footer__col--company::before,
    .arech-footer__col--legal::before {
        content: '';
        position: absolute;
        inset-inline-start: calc(var(--space-5) / -2);
        inset-block: 0;
        inline-size: 1px;
        background: color-mix(in oklch, var(--white) 6%, transparent);
    }
}
@media (min-width: 1024px) {
    .arech-footer__col--products { position: relative; }
    .arech-footer__col--products::before {
        content: '';
        position: absolute;
        inset-inline-start: calc(var(--space-6) / -2);
        inset-block: 0;
        inline-size: 1px;
        background: color-mix(in oklch, var(--white) 6%, transparent);
    }
    .arech-footer__col--company::before,
    .arech-footer__col--legal::before {
        inset-inline-start: calc(var(--space-6) / -2);
    }
}

/* -------- BRAND COLUMN -------- */
.arech-footer__col--brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}
.arech-footer__logo {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    text-decoration: none;
    align-self: flex-start;
}
.arech-footer__logo:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}
.arech-footer__logo-img {
    height: 44px;
    width: auto;
    display: block;
}
.arech-footer__tagline {
    font-style: italic;
    font-weight: 300;
    font-size: 14px;
    line-height: 1.6;
    color: var(--muted-accessible);
    max-width: 42ch;
    margin: 0;
}

/* Social media row */
.arech-footer__social {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
}
.arech-footer__social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--muted-accessible);
    text-decoration: none;
    border-radius: var(--radius-xs);
    transition: color var(--motion-fast) var(--ease-standard),
                background var(--motion-fast) var(--ease-standard);
}
.arech-footer__social a:hover,
.arech-footer__social a:focus-visible {
    color: var(--off-white);
    background: color-mix(in oklch, var(--white) 5%, transparent);
}
.arech-footer__social a:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}
.arech-footer__social svg {
    width: 18px;
    height: 18px;
    display: block;
}

/* -------- LINK COLUMNS -------- */
.arech-footer__head {
    font-family: var(--font-headline);
    font-weight: 500;
    font-size: 20px;
    line-height: 1.3;
    color: var(--off-white);
    margin: 0 0 var(--space-5);
}
.arech-footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
}
.arech-footer__links a {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    font-size: 14px;
    font-weight: 400;
    color: var(--light);
    text-decoration: none;
    transition: color var(--motion-fast) var(--ease-standard);
}
.arech-footer__links a:hover,
.arech-footer__links a:focus-visible { color: var(--off-white); }
.arech-footer__links a:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}
.arech-footer__links .arech-footer__all {
    color: var(--orange);
    font-weight: 500;
    margin-top: var(--space-2);
}
.arech-footer__links .arech-footer__all:hover,
.arech-footer__links .arech-footer__all:focus-visible { color: var(--orange-bright); }

/* -------- BASE ROW -------- */
.arech-footer__base {
    margin-top: var(--space-8);
    padding-top: var(--space-7);
    border-top: 1px solid color-mix(in oklch, var(--white) 4%, transparent);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}
@media (min-width: 1024px) {
    .arech-footer__base {
        grid-template-columns: 1fr auto;
        align-items: start;
        gap: var(--space-8);
    }
}
.arech-footer__copyright {
    font-size: 13px;
    line-height: 1.55;
    color: var(--muted-accessible);
    max-width: 60ch;
    margin: 0;
}
.arech-footer__addresses {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.7;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted-accessible);
    font-style: normal;
}
@media (min-width: 1024px) {
    .arech-footer__addresses {
        text-align: end;
        align-items: flex-end;
    }
}

/* Images inside the footer never overflow (responsive standard §). */
.arech-footer img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* -------- TDM CREDIT (discreet build attribution) -------- */
.arech-footer__credit {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid color-mix(in oklch, var(--white) 4%, transparent);
    display: flex;
    justify-content: flex-end;
}
.arech-footer__credit-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding-block: var(--space-2);
    border-radius: var(--radius-xs);
    text-decoration: none;
}
/* Gray by default, true colours only on hover/focus (discreet credit).
   Two-class selector so `height` beats the global `.arech-footer img`
   rule (which is class+type = higher specificity than a single class). */
.arech-footer__credit .arech-footer__credit-logo {
    height: 58px;
    width: auto;
    display: block;
    filter: grayscale(1);
    opacity: 0.45;
    transition: filter var(--motion-fast) var(--ease-standard),
                opacity var(--motion-fast) var(--ease-standard);
}
.arech-footer__credit-link:hover .arech-footer__credit-logo,
.arech-footer__credit-link:focus-visible .arech-footer__credit-logo {
    filter: grayscale(0);
    opacity: 1;
}
.arech-footer__credit-link:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .arech-footer__social a { transition: none; }
    .arech-footer__links a { transition: none; }
    .arech-footer__credit-logo { transition: none; }
}


/* ============================================================================
   TDM Back To Top — view styles. Ported from prototypes/back-to-top/index.html
   (v1.0), re-namespaced .btt-* → .tdm-btt-*, driven by data-* attributes
   (model / theme / shape / size / position) + changed-only scoped custom props
   (--tdm-btt-icon / --tdm-btt-bg / --tdm-btt-size / --tdm-btt-bd-w/-c) that fall
   back to the theme presets below. Modern CSS on purpose: conic-gradient,
   color-mix, :has() not required. Brand tokens come from tdm_blocks/tokens.css.
   ============================================================================ */

/* The reveal sentinel — an invisible 1px marker placed at the threshold; the
   IntersectionObserver in view.js toggles .is-visible on the button. */
.tdm-btt-sentinel {
  position: absolute;
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
  /* `top` is set inline from the reveal_threshold setting. */
}

/* ---------------------------------------------------------------------------
   1. Base button — fixed, hidden until revealed. Defaults via custom props so
      the changed-only inline <style> can override per instance.
   --------------------------------------------------------------------------- */
.tdm-btt {
  /* size + hit area (kept >= 44px even at S 40 via min-width/height) */
  --tdm-btt-size: 48px;
  --tdm-btt-hit: 48px;
  --tdm-btt-radius: 50%;
  --tdm-btt-bd-w: 0px;
  --tdm-btt-bd-c: transparent;
  --tdm-btt-inset: var(--tdm-space-5, 24px);
  --tdm-btt-p: 0; /* scroll progress 0..1 for the gauge */

  position: fixed;
  z-index: 8000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--tdm-btt-hit);
  min-height: var(--tdm-btt-hit);
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  font-family: var(--tdm-font-mono, system-ui, sans-serif);

  /* reveal state (hidden + out of tab order until shown) */
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease),
    transform var(--tdm-dur-base, 250ms) var(--tdm-ease-emphatic, ease),
    visibility 0s linear var(--tdm-dur-base, 250ms);
}

.tdm-btt.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease),
    transform var(--tdm-dur-slow, 400ms) var(--tdm-ease-emphatic, ease);
}

/* size keys (the inline override sets --tdm-btt-size; we also pad the hit area) */
.tdm-btt[data-size="s"] { --tdm-btt-size: 40px; --tdm-btt-hit: 44px; }
.tdm-btt[data-size="m"] { --tdm-btt-size: 48px; --tdm-btt-hit: 48px; }
.tdm-btt[data-size="l"] { --tdm-btt-size: 56px; --tdm-btt-hit: 56px; }

/* ---------------------------------------------------------------------------
   2. Theme presets — seed --tdm-btt-bg / --tdm-btt-icon / --tdm-btt-ring.
      The changed-only inline <style> overrides --tdm-btt-bg / --tdm-btt-icon
      when the operator sets an explicit colour.
   --------------------------------------------------------------------------- */
.tdm-btt[data-theme="dark"] {
  --tdm-btt-bg: var(--tdm-color-accent, #E8651A);
  --tdm-btt-icon: var(--tdm-color-ink, #F5F4F0);
  --tdm-btt-ring: var(--tdm-color-accent, #E8651A);
}
.tdm-btt[data-theme="light"] {
  --tdm-btt-bg: #FFFFFF;
  /* #B0470B = 5.09:1 on white (canonical AA orange-link). The old #B84A0C was
     only 4.28:1, below the 4.5:1 floor for this small icon glyph. */
  --tdm-btt-icon: #B0470B;
  --tdm-btt-ring: #B0470B;
}

/* ---------------------------------------------------------------------------
   3. Shape → radius (data-shape). Gauge + pillar override internally below.
   --------------------------------------------------------------------------- */
.tdm-btt[data-shape="circle"]  { --tdm-btt-radius: 50%; }
.tdm-btt[data-shape="rounded"] { --tdm-btt-radius: var(--tdm-radius-md, 6px); }
.tdm-btt[data-shape="square"]  { --tdm-btt-radius: 2px; }
.tdm-btt[data-shape="pill"]    { --tdm-btt-radius: calc(var(--tdm-btt-size) / 2); }

/* ---------------------------------------------------------------------------
   4. Position presets — inset clears the mobile address bar.
   --------------------------------------------------------------------------- */
.tdm-btt[data-position="bottom-right"]  { right: var(--tdm-btt-inset); bottom: max(var(--tdm-btt-inset), env(safe-area-inset-bottom)); left: auto; }
.tdm-btt[data-position="bottom-left"]   { left: var(--tdm-btt-inset); bottom: max(var(--tdm-btt-inset), env(safe-area-inset-bottom)); right: auto; }
.tdm-btt[data-position="bottom-center"] { left: 50%; bottom: max(var(--tdm-btt-inset), env(safe-area-inset-bottom)); right: auto; transform: translateX(-50%) translateY(12px); }
.tdm-btt[data-position="bottom-center"].is-visible { transform: translateX(-50%) translateY(0); }

@media (min-width: 768px) {
  .tdm-btt { --tdm-btt-inset: var(--tdm-space-6, 32px); }
}

/* ---------------------------------------------------------------------------
   5. The visible "face" — the coloured chip the user sees.
   --------------------------------------------------------------------------- */
.tdm-btt__face {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--tdm-btt-size);
  height: var(--tdm-btt-size);
  border-radius: var(--tdm-btt-radius);
  background: var(--tdm-btt-bg);
  border: var(--tdm-btt-bd-w) solid var(--tdm-btt-bd-c);
  color: var(--tdm-btt-icon);
  transition:
    background var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease),
    transform var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease),
    box-shadow var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease);
}
.tdm-btt:hover  .tdm-btt__face { transform: translateY(-2px); box-shadow: 0 8px 22px color-mix(in srgb, #000 35%, transparent); }
.tdm-btt:active .tdm-btt__face { transform: translateY(0); }
.tdm-btt:focus-visible { outline: none; }
.tdm-btt:focus-visible .tdm-btt__face { box-shadow: 0 0 0 3px color-mix(in srgb, var(--tdm-btt-ring) 80%, transparent); }

.tdm-btt__disc { display: inline-flex; align-items: center; justify-content: center; }
.tdm-btt__icon { width: 45%; height: 45%; display: block; line-height: 0; }
.tdm-btt__icon svg { width: 100%; height: 100%; display: block; }

/* stacked label (model 3) — hidden by default */
.tdm-btt__label {
  display: none;
  font-family: var(--tdm-font-mono, system-ui, sans-serif);
  font-weight: 500;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-top: 2px;
  color: var(--tdm-btt-icon);
  line-height: 1;
}

/* live % readout (gauge) — hidden by default */
.tdm-btt__pct {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  font-family: var(--tdm-font-mono, system-ui, sans-serif);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--tdm-btt-icon);
}

/* ---------------------------------------------------------------------------
   MODEL: scroll-gauge (conic progress ring)
   --------------------------------------------------------------------------- */
.tdm-btt[data-model="scroll-gauge"] .tdm-btt__face { border-radius: 50%; background: transparent; padding: 0; }
.tdm-btt[data-model="scroll-gauge"] .tdm-btt__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    var(--tdm-btt-ring) calc(var(--tdm-btt-p) * 360deg),
    color-mix(in srgb, var(--tdm-btt-ring) 22%, transparent) 0
  );
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
          mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
}
.tdm-btt[data-model="scroll-gauge"] .tdm-btt__disc {
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: var(--tdm-btt-bg);
}
.tdm-btt[data-model="scroll-gauge"] .tdm-btt__icon { width: 42%; height: 42%; }
.tdm-btt[data-model="scroll-gauge"].show-pct .tdm-btt__icon { opacity: 0; }
.tdm-btt[data-model="scroll-gauge"].show-pct .tdm-btt__pct { display: inline-flex; }

/* The ring/disc are only meaningful for the gauge — hide for other models. */
.tdm-btt:not([data-model="scroll-gauge"]) .tdm-btt__ring { display: none; }

/* ---------------------------------------------------------------------------
   MODEL: edge-pillar (half-pill welded to the edge)
   --------------------------------------------------------------------------- */
.tdm-btt[data-model="edge-pillar"] { bottom: 50%; }
.tdm-btt[data-model="edge-pillar"][data-position="bottom-right"]  { right: 0; left: auto; transform: translateY(40px); }
.tdm-btt[data-model="edge-pillar"][data-position="bottom-right"].is-visible { transform: translateY(0); }
.tdm-btt[data-model="edge-pillar"][data-position="bottom-left"]   { left: 0; right: auto; transform: translateY(40px); }
.tdm-btt[data-model="edge-pillar"][data-position="bottom-left"].is-visible  { transform: translateY(0); }
.tdm-btt[data-model="edge-pillar"][data-position="bottom-center"] { left: 0; right: auto; transform: translateY(40px); } /* center N/A → docks left */
.tdm-btt[data-model="edge-pillar"][data-position="bottom-center"].is-visible { transform: translateY(0); }
.tdm-btt[data-model="edge-pillar"] .tdm-btt__face {
  width: calc(var(--tdm-btt-size) * 0.74);
  height: calc(var(--tdm-btt-size) * 1.9);
  border-radius: 10px 0 0 10px; /* rounded only on the inboard side */
}
.tdm-btt[data-model="edge-pillar"][data-position="bottom-left"] .tdm-btt__face,
.tdm-btt[data-model="edge-pillar"][data-position="bottom-center"] .tdm-btt__face { border-radius: 0 10px 10px 0; }
.tdm-btt[data-model="edge-pillar"]:hover .tdm-btt__face { transform: translateX(-3px); }
.tdm-btt[data-model="edge-pillar"][data-position="bottom-left"]:hover .tdm-btt__face,
.tdm-btt[data-model="edge-pillar"][data-position="bottom-center"]:hover .tdm-btt__face { transform: translateX(3px); }

/* ---------------------------------------------------------------------------
   MODEL: stacked-label
   --------------------------------------------------------------------------- */
.tdm-btt[data-model="stacked-label"] .tdm-btt__face {
  flex-direction: column;
  gap: 1px;
  width: auto;
  min-width: var(--tdm-btt-size);
  height: auto;
  min-height: var(--tdm-btt-size);
  padding: 8px 12px;
}
.tdm-btt[data-model="stacked-label"] .tdm-btt__disc { flex-direction: column; }
.tdm-btt[data-model="stacked-label"] .tdm-btt__icon { width: 18px; height: 18px; }
.tdm-btt[data-model="stacked-label"] .tdm-btt__label { display: block; }

/* ---------------------------------------------------------------------------
   MODEL: notch-riser (rises from below with overshoot)
   --------------------------------------------------------------------------- */
.tdm-btt[data-model="notch-riser"][data-position="bottom-right"],
.tdm-btt[data-model="notch-riser"][data-position="bottom-left"] { transform: translateY(140%); }
.tdm-btt[data-model="notch-riser"][data-position="bottom-center"] { transform: translateX(-50%) translateY(140%); }
.tdm-btt[data-model="notch-riser"].is-visible[data-position="bottom-right"],
.tdm-btt[data-model="notch-riser"].is-visible[data-position="bottom-left"] {
  transform: translateY(0);
  transition: transform var(--tdm-dur-slow, 400ms) var(--tdm-ease-emphatic, cubic-bezier(0.34, 1.56, 0.64, 1)),
              opacity var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease);
}
.tdm-btt[data-model="notch-riser"].is-visible[data-position="bottom-center"] {
  transform: translateX(-50%) translateY(0);
  transition: transform var(--tdm-dur-slow, 400ms) var(--tdm-ease-emphatic, cubic-bezier(0.34, 1.56, 0.64, 1)),
              opacity var(--tdm-dur-base, 250ms) var(--tdm-ease-standard, ease);
}
.tdm-btt[data-model="notch-riser"] .tdm-btt__face { border-radius: min(var(--tdm-btt-radius), 6px); }

/* MODEL: plain-chevron uses the base .tdm-btt__face as-is — nothing special. */

/* ---------------------------------------------------------------------------
   Reduced motion: no overshoot, no float, no transform reveal — fade only.
   Reveal still works; scroll is instant (handled in view.js).
   --------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .tdm-btt,
  .tdm-btt.is-visible,
  .tdm-btt[data-model="notch-riser"].is-visible[data-position="bottom-right"],
  .tdm-btt[data-model="notch-riser"].is-visible[data-position="bottom-left"] {
    transform: none !important;
    transition: opacity var(--tdm-dur-base, 250ms) linear, visibility 0s !important;
  }
  .tdm-btt[data-position="bottom-center"],
  .tdm-btt[data-position="bottom-center"].is-visible { transform: translateX(-50%) !important; }
  .tdm-btt:hover .tdm-btt__face,
  .tdm-btt[data-model="edge-pillar"]:hover .tdm-btt__face { transform: none; }
}