/* ──────────────────────────────────────────────────────────────────
   _shared.css — Avria marketing-site shared scaffold
   Created 2026-06-01; live on all 8 production pages as of 2026-06-02.
   Linked from: index, about, contact, founders-100, privacy, team,
   terms, vault. (404.html is intentionally standalone.)

   Cache-busting: pages link as `_shared.css?v=N`. Bump N whenever
   tokens, nav, footer, .reveal/.cta-card/.waitlist-form chrome, or
   the prose-link / focus-visible / a11y rules change. Current: v4.
   _reveal.js uses an independent counter (currently v2).

   Page-specific styles stay in each page's inline <style>. The
   founders-100 page additionally overrides `--bg` and `--radius-xl`
   in its own :root for the premium splash treatment; that override
   is documented in founders-100.html.
   ────────────────────────────────────────────────────────────────── */
/* ── extracted from index.html L50-419 ── */
/* ──────────────────────────────────────────────────────────────────
   Reset + base (mirrors showcase tokens for consistency)
──────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      text-rendering: optimizeLegibility;
    }
    body {
      margin: 0;
      background: #0a0a0a;
      color: #f5f5f5;
      font-family: 'Geist', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      font-weight: 400;
      font-size: 17px;
      line-height: 1.55;
      letter-spacing: -0.005em;
      overflow-x: hidden;
    }
    img, svg { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    h1, h2, h3, h4, p { margin: 0; }
    button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

    :root {
      --bg:           #0a0a0a;
      --bg-elev:      #111111;
      --surface:      #161616;
      --surface-2:    #1c1c1c;
      --surface-3:    #232323;

      --text:         #f5f5f5;
      --text-soft:    #c8c8c8;
      --text-muted:   #8a8a8a;
      --text-faint:   #6e6e6e;
      --text-dim:     #3a3a3a;

      --line:         rgba(255, 255, 255, 0.06);
      --line-strong:  rgba(255, 255, 255, 0.12);

      --accent:        #00CED1;
      --accent-soft:   rgba(0, 206, 209, 0.10);
      --accent-bg:     rgba(0, 206, 209, 0.06);
      --accent-glow:   rgba(0, 206, 209, 0.22);
      --accent-text:   #0a0a0a;
      /* Bright cyan hover state, promoted from founders-100.html 2026-06-02
         so .nav-cta:hover / .btn-primary:hover / page-specific :hover
         all reference one token instead of repeating the raw hex literal. */
      --accent-bright: #4ee0e2;

      --container:    min(1220px, calc(100vw - 48px));

      --radius-sm:    8px;
      --radius:       14px;
      --radius-lg:    22px;
      --radius-xl:    28px;

      --ease:         cubic-bezier(0.22, 1, 0.36, 1);
      --ease-snap:    cubic-bezier(0.4, 0, 0.2, 1);

      --shadow-card:  0 1px 0 rgba(255,255,255,0.04) inset,
                      0 24px 60px -28px rgba(0,0,0,0.6);
    }

    /* ──────────────────────────────────────────────────────────────────
       Accessibility
    ──────────────────────────────────────────────────────────────────── */
    .skip-link {
      position: absolute;
      top: -120px;
      left: 16px;
      background: var(--accent);
      color: var(--accent-text);
      padding: 12px 22px;
      border-radius: 999px;
      z-index: 100;
      font-family: 'Geist', sans-serif;
      font-weight: 500;
      font-size: 14px;
    }
    .skip-link:focus { top: 16px; }
    :focus { outline: none; }
    :focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
      border-radius: 4px;
    }

    /* ──────────────────────────────────────────────────────────────────
       Utilities
    ──────────────────────────────────────────────────────────────────── */
    .container { width: var(--container); margin: 0 auto; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-family: 'DM Mono', monospace;
      font-size: 12px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--text-muted);
      font-weight: 500;
    }
    .eyebrow::before {
      content: '';
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--accent);
    }

    /* ──────────────────────────────────────────────────────────────────
       Top nav (same as showcase)
    ──────────────────────────────────────────────────────────────────── */
    .top-nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 50;
      backdrop-filter: blur(14px) saturate(140%);
      background: rgba(10, 10, 10, 0.62);
      border-bottom: 1px solid var(--line);
      /* Subtle cyan glow below the nav line for a more distinguished section break */
      box-shadow: 0 4px 28px -6px rgba(0, 206, 209, 0.22);
    }
    .top-nav-inner {
      width: var(--container);
      margin: 0 auto;
      padding: 2px 0;   /* tight padding so the logo can max out the header height */
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 24px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      justify-self: start;
      transition: opacity 240ms var(--ease);
      /* 2026-05-31: tight asset has no padding around the wordmark,
         so the original nav slot collapsed from ~72px to ~28px after
         the swap. Padding restores the prior layout footprint while
         keeping the visible wordmark at landing-correct size. */
      padding: 22px 0;
    }
    .brand-logo:hover { opacity: 0.85; }
    .brand-logo img {
      height: 28px;
      width: auto;
      display: block;
    }
    .nav-center {
      display: flex;
      align-items: center;
      gap: 36px;
      justify-self: center;
    }
    .nav-center a {
      font-family: 'Geist', sans-serif;
      font-size: 14px;
      color: var(--text-soft);
      transition: color 240ms var(--ease);
    }
    .nav-center a:hover { color: var(--text); }
    .nav-right {
      display: flex;
      align-items: center;
      gap: 14px;
      justify-self: end;
    }
    .nav-login {
      font-family: 'Geist', sans-serif;
      font-size: 14px;
      color: var(--text-soft);
      padding: 9px 14px;
      transition: color 240ms var(--ease);
    }
    .nav-login:hover { color: var(--text); }
    .nav-cta {
      padding: 9px 18px;
      border-radius: 999px;
      background: var(--accent);
      color: var(--accent-text) !important;
      font-weight: 500;
      font-size: 14px;
      transition: background 240ms var(--ease);
    }
    .nav-cta:hover { background: var(--accent-bright); }

    /* Products dropdown — hover-show + keyboard-accessible (focus-within) */
    .nav-dropdown-wrap { position: relative; display: inline-block; }
    .nav-trigger {
      font-family: 'Geist', sans-serif;
      font-size: 14px;
      color: var(--text-soft);
      background: transparent;
      border: 0;
      padding: 0;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color 240ms var(--ease);
    }
    .nav-trigger:hover,
    .nav-dropdown-wrap:focus-within .nav-trigger { color: var(--text); }
    .nav-chevron {
      width: 10px; height: 10px;
      transition: transform 240ms var(--ease);
    }
    .nav-dropdown-wrap:hover .nav-chevron,
    .nav-dropdown-wrap:focus-within .nav-chevron { transform: rotate(180deg); }

    .nav-dropdown {
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%) translateY(8px);
      margin-top: 8px;
      min-width: 200px;
      background: var(--surface);
      border: 1px solid var(--line-strong);
      border-radius: 12px;
      padding: 8px;
      display: flex;
      flex-direction: column;
      gap: 2px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 200ms var(--ease), transform 240ms var(--ease);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(0, 206, 209, 0.12);
    }
    .nav-dropdown-wrap:hover .nav-dropdown,
    .nav-dropdown-wrap:focus-within .nav-dropdown {
      opacity: 1;
      pointer-events: auto;
      transform: translateX(-50%) translateY(0);
    }
    /* Invisible hover-bridge: covers the 8px margin-top gap between the
       trigger's bottom edge and the dropdown's top edge. Without this, the
       mouse traveling from trigger to option exits the dropdown's hover
       region mid-motion and the panel closes. Pseudo inherits the dropdown's
       pointer-events, so it's only interactive while the dropdown is shown. */
    .nav-dropdown::before {
      content: '';
      position: absolute;
      top: -8px;
      left: 0;
      right: 0;
      height: 8px;
    }

    /* Mobile hamburger menu (mirrors .nav-dropdown visual language but
       tap-controlled via [aria-expanded], not :hover). Hidden by default;
       revealed at <=980px where the desktop nav-center + nav-login hide. */
    .nav-mobile { display: none; position: relative; }
    .nav-hamburger {
      width: 44px; height: 44px;
      background: transparent; border: 0; padding: 0;
      cursor: pointer;
      display: inline-flex; align-items: center; justify-content: center;
      color: var(--text-soft);
      transition: color 240ms var(--ease);
    }
    .nav-hamburger:hover { color: var(--text); }
    .nav-hamburger-icon { width: 20px; height: 20px; display: block; }
    .nav-hamburger-icon line {
      stroke: currentColor;
      stroke-width: 1.5;
      stroke-linecap: round;
      transform-origin: center;
      transition: transform 240ms var(--ease), opacity 200ms var(--ease);
    }
    /* Morph to X on open: top line rotates 45° + slides down 4px, bottom
       rotates -45° + slides up 4px, middle line fades out. */
    .nav-hamburger[aria-expanded="true"] .line-top    { transform: translateY(4px) rotate(45deg); }
    .nav-hamburger[aria-expanded="true"] .line-middle { opacity: 0; }
    .nav-hamburger[aria-expanded="true"] .line-bottom { transform: translateY(-4px) rotate(-45deg); }

    .mobile-menu {
      position: absolute;
      top: 100%; right: 0;
      margin-top: 8px;
      min-width: 240px;
      background: var(--surface);
      border: 1px solid var(--line-strong);
      border-radius: 12px;
      padding: 8px;
      display: flex; flex-direction: column; gap: 2px;
      opacity: 0;
      pointer-events: none;
      transform: translateY(8px);
      transition: opacity 200ms var(--ease), transform 240ms var(--ease);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(0, 206, 209, 0.12);
      z-index: 60;
    }
    .nav-hamburger[aria-expanded="true"] + .mobile-menu {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }
    /* Hover-bridge mirrors the desktop dropdown pattern: covers the 8px gap
       between the icon and the panel so finger drift doesn't close the menu. */
    .mobile-menu::before {
      content: '';
      position: absolute;
      top: -8px;
      left: 0; right: 0;
      height: 8px;
    }
    .mobile-menu a {
      display: block;
      padding: 12px 14px;
      font-family: 'Geist', sans-serif;
      font-size: 14px;
      color: var(--text-soft);
      border-radius: 6px;
      transition: background 200ms var(--ease), color 200ms var(--ease);
    }
    .mobile-menu a:hover,
    .mobile-menu a[aria-current="page"] {
      background: rgba(0,206,209,0.10);
      color: var(--accent);
    }
    .mobile-menu-divider {
      height: 1px;
      background: var(--line);
      margin: 6px 0;
    }
    .nav-dropdown a {
      display: block;
      padding: 10px 14px;
      font-family: 'Geist', sans-serif;
      font-size: 14px;
      color: var(--text-soft);
      border-radius: 6px;
      transition: background 200ms var(--ease), color 200ms var(--ease);
    }
    .nav-dropdown a:hover { background: rgba(0,206,209,0.10); color: var(--accent); }

    /* ──────────────────────────────────────────────────────────────────
       Buttons (same pill styling as showcase)
    ──────────────────────────────────────────────────────────────────── */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 24px;
      border-radius: 999px;
      font-family: 'Geist', sans-serif;
      font-weight: 500;
      font-size: 15px;
      letter-spacing: -0.008em;
      transition: transform 240ms var(--ease), background 240ms var(--ease), color 240ms var(--ease), border-color 240ms var(--ease);
    }
    .btn-primary {
      background: var(--accent);
      color: var(--accent-text);
    }
    .btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); }
    .btn-ghost {
      background: transparent;
      color: var(--text);
      border: 1px solid var(--line-strong);
    }
    .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
    .btn .arrow {
      display: inline-block;
      transition: transform 280ms var(--ease);
    }
    .btn:hover .arrow { transform: translateX(3px); }
    /* :active micro-press (2026-05-31) — tactile feedback on every CTA. */
    .btn:active { transform: scale(0.97); }

/* ── extracted from index.html L835-949 ── */
    /* ──────────────────────────────────────────────────────────────────
       Footer
    ──────────────────────────────────────────────────────────────────── */
    /* ──────────────────────────────────────────────────────────────────
       Site footer — multi-column, matches avria-site/index.html pattern
    ──────────────────────────────────────────────────────────────────── */
    .site-footer {
      padding: 0;
      border-top: 1px solid var(--line);
      /* Subtle cyan glow above the footer line for a more distinguished section break */
      box-shadow: 0 -4px 28px -6px rgba(0, 206, 209, 0.22);
    }
    /* Upper section spans 100vw; its bottom border IS the full-width divider. */
    .footer-top {
      padding: 32px 0;
      border-bottom: 1px solid var(--line);
    }
    .footer-top-inner {
      width: var(--container);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 2.2fr 1fr 1fr 1fr;   /* wider logo column pushes the link columns rightward */
      gap: 56px;
      align-items: start;   /* top-align so the PRODUCTS/COMPANY/LEGAL labels sit on a shared baseline; logo card centers itself within its own column */
    }
    /* Brand lockup — capped at 300px (the slogan strap's natural width)
       and anchored at the LEFT of the 2.2fr column. Children centered
       inside that 300px sub-container so the logo glyph, slogan, and
       "HB Industries LLC · avria.ai" line below the divider all share
       a single vertical centerline near the container's left edge.
       The wider 2.2fr column preserves the original position of the
       Products / Company / Legal columns to its right. */
    .footer-logo {
      width: 100%;
      max-width: 300px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0;
      /* 2026-05-31: tight asset has no internal padding, so the
         footer column lost ~70px of breathing room after the swap.
         Padding here restores the prior footer rhythm. */
      padding: 35px 0;
    }
    .footer-logo img {
      height: 56px;
      width: auto;
      display: block;
      object-fit: contain;
      flex-shrink: 0;
    }
    /* Tagline strap — DM Mono caps, wide-tracked, all white, subordinate to logo.
       2026-05-31 asset swap: AVRIA_LOGO.png replaced with _logo_tight.png
       (tight crop, no transparent padding). The prior margin-top: -24px
       was pulling the tagline up into the padded version's bottom padding;
       with the tight asset that becomes a positive gap. Heights also
       recomputed: 140px → 70px (effective visible wordmark is unchanged). */
    .footer-tagline {
      font-family: 'DM Mono', 'SF Mono', Menlo, Consolas, monospace;
      /* Sized to match the AVRIA business-card lockup ratio: the slogan
         extends slightly past the wordmark on each side (~1.15-1.20x the
         wordmark width). With the 56px footer wordmark (~229px wide),
         9.5px DM Mono at 0.22em tracking lands the tagline at ~273px
         wide — a clean 20% overhang split across both sides. */
      font-size: 9.5px;
      font-weight: 400;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--text);
      white-space: nowrap;
      margin-top: 14px;
    }
    .footer-col-label {
      font-family: 'DM Mono', monospace;
      font-size: 11px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 18px;
    }
    .footer-col-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-col-links a {
      font-family: 'Geist', sans-serif;
      font-size: 14px;
      color: var(--text-soft);
      transition: color 240ms var(--ease);
    }
    .footer-col-links a:hover { color: var(--accent); }
    /* Bottom bar — mirrors the top row's 4-column grid so the brand
       reference (col 1) sits directly under the centered brand lockup
       above the divider. Copyright spans cols 2-4, right-aligned. */
    .footer-bottom {
      width: var(--container);
      margin: 0 auto;
      padding: 22px 0;
      display: grid;
      grid-template-columns: 2.2fr 1fr 1fr 1fr;
      gap: 56px;
      font-family: 'DM Mono', monospace;
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--text-muted);
    }
    .footer-brand-ref {
      width: 100%;
      max-width: 300px;
      text-align: center;
    }
    .footer-copyright {
      grid-column: 2 / -1;
      text-align: right;
    }

    /* ──────────────────────────────────────────────────────────────────
       Prose-link utility (consolidated 2026-06-02)
       Inline anchor inside body prose / legal copy / callouts / alt-contact.
       Cyan text, underline grows in on hover via border-color transition.
    ──────────────────────────────────────────────────────────────────── */
    .body-section a, .legal-body a, .callout a, .alt-contact a {
      color: var(--accent);
      border-bottom: 1px solid transparent;
      transition: border-color 240ms var(--ease);
    }
    .body-section a:hover, .legal-body a:hover, .callout a:hover, .alt-contact a:hover {
      border-bottom-color: var(--accent);
    }
    /* Footer-bottom anchor (the inline "HB Industries LLC · avria.ai" link).
       Inherits color from the footer-bottom DM Mono uppercase text; hover
       lifts to accent. */
    .footer-bottom a {
      color: inherit;
      border-bottom: 1px solid transparent;
      transition: color 200ms var(--ease), border-color 200ms var(--ease);
    }
    .footer-bottom a:hover { color: var(--accent); border-bottom-color: var(--accent); }

    /* ──────────────────────────────────────────────────────────────────
       Early-access CTA card chrome (used by about / team / vault / index 2026-06-02)
       Pages MUST set their own max-width + padding inline since those
       calibrate per layout. The chrome below is invariant: gradient
       background, accent-glow ::before, centered text, z-index handling.
       Pages with brighter glow (vault, team) override opacity inline.
    ──────────────────────────────────────────────────────────────────── */
    .cta-card { margin: 0 auto; text-align: center; background: linear-gradient(180deg, var(--surface), var(--bg-elev)); border: 1px solid var(--line); border-radius: var(--radius-xl); position: relative; overflow: hidden; }
    .cta-card::before { content: ''; position: absolute; left: 50%; top: 40%; transform: translate(-50%, -50%); width: 700px; height: 500px; background: radial-gradient(ellipse at center, var(--accent-glow), transparent 65%); pointer-events: none; opacity: 0.6; }
    .cta-card > * { position: relative; z-index: 1; }
    .cta-heading em { font-style: normal; color: var(--accent); font-weight: 500; }

    /* ──────────────────────────────────────────────────────────────────
       Waitlist form (used by team / vault / index)
       All chrome is invariant. Pages set .cta-section padding inline.
    ──────────────────────────────────────────────────────────────────── */
    /* Form width tuned 2026-06-02: max-width 440 (down from 480) + single-column
       rows (was 1fr 1fr) so every field is uniform 440px. The previous half-width
       email/name cells (234px) and full-width company/role (480px) were visually
       uneven; the new uniform 440 sits between them. */
    .waitlist-form { margin: 36px auto 0; max-width: 440px; display: flex; flex-direction: column; gap: 16px; text-align: left; }
    .waitlist-row { display: grid; grid-template-columns: 1fr; gap: 16px; }
    /* Field wrapper — label above input, matches the contact + founders-100
       label-above-input pattern so every form on the site reads the same. */
    .waitlist-form .form-field { display: flex; flex-direction: column; gap: 6px; }
    .waitlist-form label {
      font-family: 'DM Mono', monospace;
      font-size: 10.5px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--text-muted);
    }
    .waitlist-form label .opt { text-transform: none; letter-spacing: 0; color: var(--text-faint); font-size: 10px; margin-left: 4px; }
    .waitlist-form input, .waitlist-form select, .waitlist-form textarea { font-family: 'Geist', sans-serif; font-size: 15px; padding: 14px 16px; background: var(--bg); border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--text); transition: border-color 240ms var(--ease), background 240ms var(--ease); width: 100%; letter-spacing: -0.005em; }
    .waitlist-form input::placeholder, .waitlist-form textarea::placeholder { color: var(--text-muted); }
    /* Strip the native <select> chrome so dropdowns visually match the
       text inputs side-by-side (browsers otherwise draw their own
       arrow + interior padding that makes the field look narrower).
       Custom chevron via background-image; right-padded so text
       doesn't sit under the arrow. */
    .waitlist-form select {
      color: var(--text-muted);
      appearance: none;
      -webkit-appearance: none;
      -moz-appearance: none;
      background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%238a8a8a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 16px center;
      background-size: 12px;
      padding-right: 40px;
    }
    .waitlist-form select option { color: var(--text); background: var(--surface); }
    .waitlist-form input:focus, .waitlist-form select:focus, .waitlist-form textarea:focus { border-color: var(--accent); background: var(--bg-elev); outline: none; }
    .waitlist-full { grid-column: 1 / -1; }
    .waitlist-submit { margin-top: 8px; justify-content: center; width: 100%; }
    .waitlist-privacy { font-family: 'Geist', sans-serif; font-size: 12px; color: var(--text-muted); text-align: center; margin: 8px 0 0; }

    /* ──────────────────────────────────────────────────────────────────
       Reveal animation (consolidated from index/team/vault 2026-06-02)
       Sites paired with _reveal.js. .r1–.r5 are stagger classes for
       cascading reveals (60/140/220/300/380ms). Mobile gets a shorter
       transition (540ms vs 760ms) per the vault.html design pass.
    ──────────────────────────────────────────────────────────────────── */
    .reveal { opacity: 0; transform: translateY(20px); transition: opacity 760ms var(--ease), transform 760ms var(--ease); }
    .reveal.in { opacity: 1; transform: none; }
    .reveal.r1 { transition-delay: 60ms; }
    .reveal.r2 { transition-delay: 140ms; }
    .reveal.r3 { transition-delay: 220ms; }
    .reveal.r4 { transition-delay: 300ms; }
    .reveal.r5 { transition-delay: 380ms; }

    /* InfoComm strip CTA link — sits inline inside .infocomm-line on
       index / team / vault. Inherits the DM Mono caps treatment from
       its parent; only color + underline differ. */
    .infocomm-cta {
      color: var(--accent);
      text-decoration: underline;
      text-underline-offset: 3px;
      text-decoration-thickness: 1px;
      transition: opacity 240ms var(--ease);
    }
    .infocomm-cta:hover,
    .infocomm-cta:focus-visible { opacity: 0.85; }

/* ── extracted from index.html L1360-1421 ── */
    /* ──────────────────────────────────────────────────────────────────
       Responsive
    ──────────────────────────────────────────────────────────────────── */
    @media (max-width: 980px) {
      :root { --container: calc(100vw - 32px); }
      .top-nav-inner { padding: 4px 0; grid-template-columns: auto 1fr auto; gap: 12px; }
      .brand-logo img { height: 24px; }
      .nav-center { display: none; }
      .nav-right { gap: 8px; }
      .nav-login { display: none; }
      .nav-mobile { display: inline-block; }
      .nav-cta { padding: 8px 14px; font-size: 13px; }

      section { padding: 80px 0; }
      .hero { padding: 120px 0 64px; }
      .section-intro { margin-bottom: 48px; }

      .split {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .chat-card { margin: 0 auto; max-width: 100%; }

      .pillars-grid { grid-template-columns: 1fr; gap: 8px; }
      .pillar-card { padding: 32px 20px; }

      .stack-tier { padding: 32px 20px; }
      .stack-tier-label { top: 20px; left: 20px; }
      .stack-tier-label .num { font-size: 28px; }

      .cta-card { padding: 56px 24px; }
      .footer-top-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
      .footer-logo img { height: 56px; }
      .footer-bottom { grid-template-columns: 1fr; gap: 10px; }
      .footer-brand-ref { text-align: center; }
      .footer-copyright { grid-column: 1; text-align: center; }
      .waitlist-row { grid-template-columns: 1fr; }
      .waitlist-form { max-width: 100%; }
      /* Shorter reveal transition on mobile — small surfaces don't need long fades. */
      .reveal { transition-duration: 540ms; }
    }

    @media (max-width: 560px) {
      .footer-top-inner { grid-template-columns: 1fr; gap: 32px; }
      .stack-agents { grid-template-columns: 1fr; }
      .pill { font-size: 10px; padding: 5px 10px; }
      .ask-console-actions { gap: 6px; }
      .ask-chip--send { margin-left: 0; }
    }

    /* ──────────────────────────────────────────────────────────────────
       Reduced motion
    ──────────────────────────────────────────────────────────────────── */
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
      }
      .float-in { opacity: 1; transform: none; animation: none; }
      .reveal   { opacity: 1; transform: none; transition: none; }
      .card-status::before, .hero::before,
      .cta-card::before { animation: none; }
    }