:root{
      --navy-950:#01030f;
      --navy-900:#020616;
      --navy-800:#050a1b;

      --lime:#b9c85a;
      --lime-soft: rgba(185,200,90,0.14);
      --lime-soft-strong: rgba(185,200,90,0.22);

      --violet:#8b5cff;
      --violet-soft: rgba(139,92,255,0.20);
      --violet-border-soft: rgba(139,92,255,0.55);

      --blue:#4ea8ff;
      --blue-soft: rgba(78,168,255,0.18);

      --ink:#f7fbff;
      --ink-soft:#c5cee7;
      --ink-subtle:#8890aa;

      --border-subtle: rgba(255,255,255,0.08);
      --border-soft: rgba(255,255,255,0.14);

      --panel-radius-lg: 20px;
      --panel-radius-md: 16px;
      --panel-radius-sm: 12px;

      --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      --font-display: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

      --space-xxl: 88px;
      --space-xl: 60px;
      --space-lg: 40px;
      --space-md: 28px;
      --space-sm: 18px;
      --space-xs: 10px;
    }

    *, *::before, *::after{ box-sizing:border-box; }
    html{ scroll-behavior:smooth; max-width:100%; overflow-x:hidden; }
    body{
      margin:0;
      min-height:100vh;
      font-family:var(--font-sans);
      color:var(--ink-soft);
      background: radial-gradient(circle at top, #071025 0, var(--navy-900) 32%, var(--navy-950) 100%);
      -webkit-font-smoothing: antialiased;
      text-rendering: geometricPrecision;
      max-width:100%;
      overflow-x:hidden;
    }
    a{ color:inherit; text-decoration:none; }
    img{ max-width:100%; height:auto; display:block; }
    p{ margin:0; }

    /* LOCK SCROLL WHEN ANY LIGHTBOX IS OPEN */
    html.modal-lock,
    body.modal-lock{
      overflow:hidden !important;
      height:100%;
      overscroll-behavior: none;
      -webkit-overflow-scrolling: auto;
    }

    .page-shell{
      min-height:100vh;
      display:flex;
      flex-direction:column;
      opacity:0;
      animation: pageFadeIn 320ms ease-out forwards;
    }
    /* IMPORTANT: no transform here (fixes fixed lightbox centering after long scroll) */
    @keyframes pageFadeIn{
      from{ opacity:0; }
      to{ opacity:1; }
    }
    @media (prefers-reduced-motion: reduce){
      .page-shell{ animation:none; opacity:1; }
    }

    .page-inner{
      max-width: 1160px;
      margin: 0 auto;
      padding: var(--space-xl) 20px var(--space-xxl);
      width:100%;
      display:flex;
      flex-direction:column;
      gap: var(--space-xxl);
    }

    /* Buttons (same language as product) */
    .btn{
      border-radius: 999px;
      border: 1px solid transparent;
      padding: 10px 18px;
      font-size: 11px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      cursor: pointer;
      font-family: var(--font-sans);
      display: inline-flex;
      align-items:center;
      justify-content:center;
      gap: 8px;
      background: transparent;
      color: var(--ink);
      transition: transform .12s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;
      white-space: nowrap;
      max-width: 100%;
      overflow: hidden;
      text-overflow: ellipsis;
      user-select:none;
    }
    .btn-primary{
      background:
        radial-gradient(circle at top left, var(--lime-soft-strong), transparent 55%),
        linear-gradient(135deg, #f7ffe1 0%, #dde98b 28%, var(--lime) 100%);
      color:#050509;
      border-color: rgba(0,0,0,0.82);
      box-shadow: 0 14px 30px rgba(0,0,0,0.70), 0 0 0 1px rgba(255,255,255,0.04);
    }
    .btn-primary:hover{
      transform: translateY(-1px);
      box-shadow: 0 18px 40px rgba(0,0,0,0.78), 0 0 0 1px rgba(255,255,255,0.08);
    }
    .btn-ghost{
       border-color: rgba(185,200,90,0.80);
  background:
    radial-gradient(circle at top left, rgba(185,200,90,0.18), transparent 60%),
    rgba(3,7,22,0.92);
  transform: translateY(-1px);
    }
    .btn-ghost:hover{
      border-color: rgba(139,92,255,0.55);
      background:
        radial-gradient(circle at top left, rgba(139,92,255,0.14), transparent 60%),
        rgba(3,7,22,0.92);
      transform: translateY(-1px);
    }
    .btn-soft{
      border-color: rgba(255,255,255,0.14);
      background: rgba(3,7,22,0.62);
      color: rgba(197,206,231,0.92);
    }
    .btn-soft:hover{
      border-color: rgba(139,92,255,0.45);
      background: rgba(3,7,22,0.82);
      transform: translateY(-1px);
    }

    /* NEW: “underline links -> pills” (no underline, still lightweight) */
    .btn-pill{
      border-color: rgba(255,255,255,0.14);
      background: rgba(2,6,23,0.66);
      color: rgba(247,251,255,0.92);
      box-shadow: 0 12px 26px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.04);
    }
    .btn-pill:hover{
      transform: translateY(-1px);
      box-shadow: 0 16px 34px rgba(0,0,0,0.70), 0 0 0 1px rgba(255,255,255,0.07);
    }
    .btn-pill--lime{
      border-color: rgba(185,200,90,0.40);
      background:
        radial-gradient(circle at top left, rgba(185,200,90,0.12), transparent 60%),
        rgba(2,6,23,0.70);
    }
    .btn-pill--violet{
      border-color: rgba(139,92,255,0.45);
      transform: translateY(-1px);
      background:
        radial-gradient(circle at top left, rgba(139,92,255,0.14), transparent 60%),
        rgba(2,6,23,0.70);
    }
    .btn-pill--blue{
      border-color: rgba(78,168,255,0.40);
      background:
        radial-gradient(circle at top left, rgba(78,168,255,0.12), transparent 60%),
        rgba(2,6,23,0.70);
    }

    .pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding: 5px 10px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.14);
      background: rgba(3,7,22,0.72);
      font-size: 9px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: rgba(197,206,231,0.84);
      white-space: nowrap;
      line-height: 1.1;
      user-select:none;
    }
    .pill.is-lime{ border-color: rgba(185,200,90,0.38); }
    .pill.is-violet{ border-color: rgba(139,92,255,0.38); }
    .pill.is-blue{ border-color: rgba(78,168,255,0.38); }

    .text-link{
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--ink-subtle);
      border-bottom: 1px solid rgba(139,92,255,0.8);
      padding-bottom: 1px;
      cursor: pointer;
      white-space: nowrap;
      width: fit-content;
    }
    .text-link:hover{
      color: var(--ink);
      border-bottom-color: rgba(185,200,90,0.9);
    }

    /* Headings + copy rhythm */
    .eyebrow{
      font-size:11px;
      text-transform: uppercase;
      letter-spacing: 0.2em;
      color: var(--ink-subtle);
      line-height: 1.25;
    }
    .section-title{
      margin:0;
      font-family: var(--font-display);
      font-size: 20px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
    }
    .section-body{
      margin:0;
      font-size: 14px;
      color: var(--ink-soft);
      line-height: 1.95;
      max-width: 56rem;
    }

    .panel{
      border-radius: var(--panel-radius-lg);
      border: 1px solid var(--border-subtle);
      background:
        radial-gradient(circle at top left, rgba(139,92,255,0.18), transparent 60%),
        linear-gradient(160deg, var(--navy-800) 0, var(--navy-950) 100%);
      overflow:hidden;
      min-width:0;
    }

    .code-inline{
      font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-size: 11px;
      background: rgba(1,3,15,0.85);
      border-radius: 6px;
      padding: 2px 6px;
      border: 1px solid rgba(255,255,255,0.12);
      white-space: nowrap;
      color: rgba(247,251,255,0.92);
    }
    .code-block{
      margin: 10px 0 0;
      padding: 12px 12px;
      border-radius: 12px;
      border: 1px solid rgba(255,255,255,0.14);
      background: rgba(1,3,15,0.94);
      font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-size: 11px;
      line-height: 1.8;
      color: rgba(247,251,255,0.92);
      overflow-x:auto;
      max-width:100%;
      white-space: pre;
    }
    /* mobile safety */
    @media (max-width: 520px){
      .code-block{
        white-space: pre-wrap;
        overflow-wrap: anywhere;
        word-break: break-word;
        font-size: 10px;
      }
      .code-inline{ white-space: normal; overflow-wrap:anywhere; }
    }

    .mini-list{
      margin:0;
      padding-left: 16px;
      display:grid;
      gap: 6px;
      font-size: 12px;
      line-height: 1.75;
      color: rgba(197,206,231,0.92);
    }

    /* =========================
       HERO + ON-PAGE NAV
       ========================= */
    .how-hero{
      padding-top: 26px;
      display:grid;
      grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
      gap: var(--space-lg);
      align-items: start;
    }
    .hero-title{
      margin:0;
      font-family: var(--font-display);
      font-size: clamp(20px, 2.2vw, 30px);
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.18;
    }
    .hero-body{
      font-size: 14px;
      color: var(--ink-soft);
      line-height: 1.95;
      max-width: 44rem;
    }
    .hero-cta-row{
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
      margin-top: 10px;
    }

    .toc-card{
      border-radius: var(--panel-radius-lg);
      border: 1px solid rgba(191,219,254,0.16);
      background:
        radial-gradient(circle at top left, rgba(78,168,255,0.14), transparent 58%),
        radial-gradient(circle at top left, rgba(139,92,255,0.18), transparent 62%),
        rgba(3,7,22,0.92);
      padding: 16px 16px 14px;
      overflow:hidden;
      display:grid;
      gap: 10px;
    }
    .toc-title{
      font-size: 10px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink-subtle);
      line-height: 1.25;
      display:flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 10px;
    }
    .toc-links{
      display:grid;
      gap: 8px;
      margin-top: 2px;
    }
    .toc-link{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(2,6,23,0.66);
      transition: transform .12s ease, border-color .18s ease, background .18s ease;
      min-width:0;
    }
    .toc-link:hover{
      transform: translateY(-1px);
      border-color: rgba(139,92,255,0.35);
      background: rgba(2,6,23,0.78);
    }
    .toc-link.is-active{
      border-color: rgba(185,200,90,0.55);
      background:
        radial-gradient(circle at top left, rgba(185,200,90,0.10), transparent 60%),
        rgba(2,6,23,0.74);
    }
    .toc-left{
      display:grid;
      gap: 4px;
      min-width:0;
    }
    .toc-kicker{
      font-size: 9px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: rgba(197,206,231,0.84);
      line-height: 1.25;
      white-space: nowrap;
      overflow:hidden;
      text-overflow: ellipsis;
    }
    .toc-name{
      font-size: 12px;
      color: var(--ink);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      line-height: 1.25;
      white-space: nowrap;
      overflow:hidden;
      text-overflow: ellipsis;
    }
    .toc-dot{
      width: 8px; height: 8px; border-radius: 999px;
      background: linear-gradient(135deg, var(--lime), var(--violet));
      box-shadow: 0 0 10px rgba(185,200,90,0.45);
      flex: 0 0 auto;
    }

    /* =========================
       SECTIONS
       ========================= */
    .section{ width:100%; }
    .section-header{
      display:flex;
      flex-direction:column;
      gap: 10px;
      max-width: 52rem;
      margin:0 0 var(--space-md) 0;
    }

    /* Overview rail */
    .overview-rail{
      border-radius: var(--panel-radius-lg);
      border: 1px solid rgba(255,255,255,0.10);
      background:
        radial-gradient(circle at top left, rgba(78,168,255,0.12), transparent 60%),
        rgba(3,7,22,0.92);
      padding: 16px 16px;
      overflow:hidden;
    }
    .overview-grid{
      margin-top: 12px;
      display:grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }
    .overview-card{
      border-radius: 16px;
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(2,6,23,0.66);
      padding: 14px 14px 12px;
      display:grid;
      gap: 8px;
      min-width:0;
    }
    .overview-top{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 10px;
      min-width:0;
    }
    .overview-name{
      margin:0;
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
      min-width:0;
      white-space: nowrap;
      overflow:hidden;
      text-overflow: ellipsis;
    }
    .overview-desc{
      margin:0;
      font-size: 12px;
      line-height: 1.85;
      color: rgba(197,206,231,0.92);
    }

    /* Install path (guide is its own section/card) */
    .install-grid{
      display:grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr);
      gap: var(--space-md);
      align-items: start;
    }
    .install-card{
      padding: 18px 18px 16px;
      display:grid;
      gap: 12px;
    }
    .install-kv{
      display:flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items:center;
    }
    .install-note{
      margin:0;
      font-size: 13px;
      line-height: 1.9;
      color: rgba(197,206,231,0.92);
    }
    .guide-card{
      border-radius: var(--panel-radius-lg);
      border: 1px solid rgba(139,92,255,0.45);
      background:
        radial-gradient(circle at top left, rgba(139,92,255,0.16), transparent 60%),
        rgba(3,7,22,0.92);
      padding: 18px 18px 16px;
      display:grid;
      gap: 12px;
      overflow:hidden;
    }
    .guide-top{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 10px;
    }
    .guide-title{
      margin:0;
      font-size: 12px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.35;
    }
    .guide-meta{
      font-size: 11px;
      color: rgba(197,206,231,0.84);
      line-height: 1.7;
    }
    .guide-cta{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 4px;
      align-items:center;
    }

    /* =========================
   SURFACES · PASSPORT SWIPE (SMALL, GLASS, SNAPPY)
   ========================= */

.surfaces-shell{
  margin-top: 14px;
}

/* Rail = swipe track */
.surfaces-rail{
  display: flex;
  gap: 14px;

  overflow-x: auto;
  overflow-y: visible;

  padding: 6px 6px 10px;
  scroll-snap-type: x mandatory;
  scroll-padding: 18px;
  -webkit-overflow-scrolling: touch;

  /* Prevent weird page-pan conflicts on mobile */
  touch-action: pan-x;

  border-radius: var(--panel-radius-lg);
}

/* Card sizing: SMALL passport feel */
.surface-card{
  position: relative;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.14);
  background:
    radial-gradient(circle at 20% 15%, rgba(78,168,255,0.14), transparent 55%),
    radial-gradient(circle at 78% 12%, rgba(139,92,255,0.18), transparent 58%),
    rgba(3,7,22,0.80);

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  box-shadow:
    0 18px 48px rgba(0,0,0,0.55),
    inset 0 1px 0 rgba(255,255,255,0.06);

  padding: 14px 14px 12px;
  overflow: hidden;
  min-width: 0;
}

/* Icon dead-center at top */
.surface-card-icon{
  width: 40px;
  height: 40px;
  border-radius: 18px;

  margin: 2px auto 10px;
  display: grid;
  place-items: center;

  border: 1px solid rgba(255,255,255,0.14);
  background:
    radial-gradient(circle at 35% 30%, rgba(185,200,90,0.16), transparent 58%),
    radial-gradient(circle at 70% 15%, rgba(139,92,255,0.18), transparent 62%),
    rgba(1,4,14,0.68);

  box-shadow: 0 16px 42px rgba(0,0,0,0.55);
}

.surface-card-icon svg{
  width: 26px;
  height: 26px;
  stroke: rgba(247,251,255,0.92);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.96;
}

.surface-card-icon .surface-icon-asset{
  width: 26px;
  height: 26px;
  display: block;
  filter: brightness(0) invert(1);
  opacity: 0.96;
}

/* Header row */
.surface-top{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.surface-id{ min-width: 0; }

.surface-kicker{
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-subtle);
  line-height: 1.2;
  white-space: nowrap;
  margin: 0 0 6px;
}

.surface-title{
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.25;
}

/* Copy */
.surface-text{
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(197,206,231,0.92);
}

/* Pills + events */
.surface-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
}

.surface-events{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
}

.surface-events .code-inline{
  font-size: 10px;
  padding: 2px 6px;
}

/* Actions */
.surface-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

    /* Data model */
    .model-rail{
      border-radius: var(--panel-radius-lg);
      border: 1px solid rgba(255,255,255,0.10);
      background:
        radial-gradient(circle at top left, rgba(139,92,255,0.14), transparent 60%),
        rgba(3,7,22,0.92);
      padding: 18px 18px 16px;
      overflow:hidden;
    }
    .model-grid{
      margin-top: 12px;
      display:grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }
    .model-card{
      border-radius: 16px;
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(2,6,23,0.66);
      padding: 14px 14px 12px;
      display:grid;
      gap: 8px;
      min-width:0;
      position:relative;
    }
    .model-card::after{
      content:"";
      position:absolute;
      right:-10px;
      top: 50%;
      width: 20px;
      height: 1px;
      background: rgba(255,255,255,0.10);
      transform: translateY(-50%);
    }
    .model-card:last-child::after{ display:none; }
    .model-name{
      margin:0;
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
    }
    .model-desc{
      margin:0;
      font-size: 12px;
      line-height: 1.85;
      color: rgba(197,206,231,0.92);
    }

    /* Privacy + controls */
    .privacy-grid{
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: var(--space-md);
      margin-top: var(--space-md);
    }
    .privacy-card{
      border-radius: var(--panel-radius-md);
      border: 1px solid rgba(255,255,255,0.14);
      background:
        radial-gradient(circle at top left, rgba(185,200,90,0.10), transparent 60%),
        rgba(4,8,20,0.92);
      padding: 16px 16px 14px;
      display:grid;
      gap: 8px;
      min-width:0;
    }
    .privacy-title{
      margin:0;
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
    }
    .privacy-list{
      margin:0;
      padding-left: 16px;
      display:grid;
      gap: 6px;
      font-size: 12px;
      line-height: 1.85;
      color: rgba(197,206,231,0.92);
    }

    /* Help Center */
    .help-cta{
      border-radius: var(--panel-radius-lg);
      border: 1px solid rgba(78,168,255,0.18);
      background:
        radial-gradient(circle at top left, rgba(78,168,255,0.14), transparent 60%),
        rgba(3,7,22,0.92);
      padding: 18px 18px 16px;
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
    }
    .help-left{
      display:grid;
      gap: 8px;
      max-width: 56rem;
    }
    .help-title{
      margin:0;
      font-size: 12px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
    }
    .help-text{
      margin:0;
      font-size: 13px;
      line-height: 1.9;
      color: rgba(197,206,231,0.92);
    }

    /* =========================
       LIGHTBOX · BASE
       ========================= */
    .lightbox{
      position: fixed;
      inset: 0;
      z-index: 80;
      display:none;
      align-items:flex-start;
      justify-content:center;
      padding:
        max(16px, calc(env(safe-area-inset-top) + 16px))
        16px
        max(14px, calc(env(safe-area-inset-bottom) + 14px))
        16px;
    }
    .lightbox.is-open{ display:flex; }
    .lightbox-backdrop{
      position:absolute;
      inset:0;
      background: radial-gradient(circle at top, rgba(9,11,30,0.96), rgba(1,3,10,0.98));
      backdrop-filter: blur(10px);
      opacity: 0.96;
    }
    .lightbox-dialog{
      position: relative;
      z-index: 1;
      width: min(780px, 96vw);
      max-height: 84vh;
      border-radius: var(--panel-radius-lg);
      border: 1px solid rgba(139,92,255,0.65);
      background:
        radial-gradient(circle at top left, rgba(139,92,255,0.18), transparent 60%),
        linear-gradient(160deg, #05091a 0, #01030f 100%);
      box-shadow: 0 22px 70px rgba(0,0,0,0.92), 0 0 0 1px rgba(255,255,255,0.05);
      overflow:hidden;
      display:grid;
      grid-template-rows: auto 1fr auto;
    }
    .lightbox-header{
      padding: 14px 14px 12px;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 10px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      background: rgba(1,4,14,0.40);
    }
    .lightbox-title{
      display:flex;
      flex-wrap:wrap;
      align-items: baseline;
      gap: 10px;
      min-width:0;
    }
    .lightbox-title strong{
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
    }
    .lightbox-title span{
      font-size: 11px;
      color: rgba(197,206,231,0.84);
      line-height: 1.6;
      white-space: nowrap;
    }
    .lightbox-close{
      border:none;
      background: transparent;
      color: var(--ink-subtle);
      cursor:pointer;
      font-size: 18px;
      line-height: 1;
      padding: 6px 10px;
      border-radius: 999px;
    }
    .lightbox-close:hover{
      color: var(--ink);
      background: rgba(255,255,255,0.05);
    }

    /* BODY SCROLL ONLY INSIDE CONTENT */
    .lightbox-body{
      overflow:auto;
      -webkit-overflow-scrolling: touch;
      padding: 18px 18px 16px;
    }

    /* =========================
       LIGHTBOX · EPUB-STYLE GUIDE
       ========================= */
    .guide-viewport{
      position:relative;
      overflow:hidden;
      height: min(64vh, calc(100vh - 240px));
      max-height: 64vh;
    }
    .guide-track{
      display:flex;
      width:100%;
      height:100%;
      transform: translateX(0%);
      transition: transform 260ms ease;
      will-change: transform;
    }
    .guide-page{
      flex: 0 0 100%;
      height: 100%;
      overflow-y: auto;
      overscroll-behavior: contain;
      -webkit-overflow-scrolling: touch;
      padding: 18px 18px 16px;
      display:grid;
      gap: 10px;
      min-width:0;
    }
    .guide-page-top{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    .guide-step{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 6px 10px;
      border-radius: 6px;
      border: 1px solid rgba(185,200,90,0.40);
      background: rgba(2,6,23,0.62);
      font-size: 9px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: rgba(197,206,231,0.92);
      white-space: nowrap;
    }
    .guide-h{
      margin:0;
      font-size: 14px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.35;
    }
    .guide-p{
      margin:0;
      font-size: 13px;
      line-height: 1.95;
      color: rgba(197,206,231,0.92);
      max-width: 56rem;
    }
    .guide-actions{
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
      align-items:center;
      margin-top: 6px;
    }

    /* Step 5 needs extra separation from the footer divider. */
    .guide-page--verify{
      padding-bottom: 28px;
    }
    .guide-page--verify .guide-actions{
      margin-top: 10px;
      margin-bottom: 10px;
    }
    .guide-p--tip{
      margin-top: 14px;
      margin-bottom: 14px;
      color: rgba(197,206,231,0.84);
    }
    .copy-toast{
      position: absolute;
      left: 50%;
      bottom: 12px;
      transform: translateX(-50%);
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(185,200,90,0.35);
      background: rgba(2,6,23,0.88);
      color: rgba(247,251,255,0.92);
      font-size: 10px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      opacity: 0;
      pointer-events:none;
      transition: opacity .18s ease, transform .18s ease;
      z-index: 3;
      white-space: nowrap;
    }
    .copy-toast.is-on{
      opacity: 1;
      transform: translateX(-50%) translateY(-2px);
    }

    .guide-page::-webkit-scrollbar { width: 10px; }
    .guide-page::-webkit-scrollbar-track { background: transparent; }
    .guide-page::-webkit-scrollbar-thumb {
      background: rgba(255,255,255,0.12);
      border-radius: 999px;
      border: 2px solid transparent;
      background-clip: padding-box;
    }
    .guide-page::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); background-clip: padding-box; }

    .lightbox-footer{
      padding: 12px 14px 12px;
      border-top: 1px solid rgba(255,255,255,0.08);
      background: rgba(1,4,14,0.40);
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    .dots{
      display:flex;
      gap: 8px;
      align-items:center;
    }
    .dot{
      width: 7px; height: 7px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.18);
      background: rgba(255,255,255,0.06);
      cursor:pointer;
    }
    .dot.is-active{
      border-color: rgba(185,200,90,0.65);
      background: rgba(185,200,90,0.25);
      box-shadow: 0 0 10px rgba(185,200,90,0.35);
    }
    .pager{
      display:flex;
      gap: 10px;
      align-items:center;
    }

    /* =========================
       NEW: PASSPORT LIGHTBOX (CAVBOT BADGE)
       ========================= */
    .passport-wrap{
      display:grid;
      gap: 14px;
    }
    .passport-top{
      display:grid;
      gap: 10px;
      justify-items:center;
      text-align:center;
      padding-top: 6px;
    }
    .passport-name{
      margin:0;
      font-size: 14px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.35;
    }
    .passport-sub{
      margin:0;
      font-size: 12px;
      line-height: 1.75;
      color: rgba(197,206,231,0.92);
      max-width: 42rem;
    }
    .passport-grid{
      display:grid;
      grid-template-columns: minmax(0,1fr) minmax(0,1fr);
      gap: 12px;
      align-items:start;
    }
    .passport-card{
      border-radius: 16px;
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(2,6,23,0.66);
      padding: 14px 14px 12px;
      display:grid;
      gap: 10px;
      min-width:0;
      overflow:hidden;
    }
    .passport-card-title{
      margin:0;
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--ink);
      line-height: 1.25;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 10px;
    }
    .passport-rows{
      display:grid;
      gap: 8px;
    }
    .passport-row{
      display:grid;
      grid-template-columns: 132px minmax(0,1fr);
      gap: 10px;
      align-items:baseline;
    }
    .passport-key{
      font-size: 10px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: rgba(197,206,231,0.74);
      line-height: 1.4;
    }
    .passport-val{
      font-size: 12px;
      line-height: 1.8;
      color: rgba(247,251,255,0.90);
      min-width:0;
    }
    .passport-bio{
      font-size: 13px;
      line-height: 1.95;
      color: rgba(197,206,231,0.92);
      max-width: 56rem;
    }
    .passport-tags{
      display:flex;
      flex-wrap:wrap;
      gap: 8px;
      align-items:center;
      margin-top: 2px;
    }

    /* =========================
       RESPONSIVE
       ========================= */
    @media (max-width: 980px){
      .how-hero{ grid-template-columns: minmax(0,1fr); }
      .toc-card{ max-width: 560px; margin-inline:auto; }
      .overview-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
      .install-grid{ grid-template-columns: minmax(0,1fr); }
      .model-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
      .privacy-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
      .model-card::after{ display:none; }
      .passport-grid{ grid-template-columns: minmax(0,1fr); }
      .passport-row{ grid-template-columns: 120px minmax(0,1fr); }
    }
    @media (max-width: 720px){
      .page-inner{
        padding-left: 16px;
        padding-right: 16px;
        gap: var(--space-xl);
      }
      .guide-viewport{
        height: min(68vh, calc(100vh - 210px));
        max-height: none;
      }
      .overview-grid,
      .model-grid,
      .privacy-grid{ grid-template-columns: minmax(0,1fr); }
      .surface-item{
        grid-template-columns: minmax(0,1fr);
      }
      .surface-icon{
        width: 54px;
        height: 54px;
      }
    }

    /* ==========================================
       HOME STYLE NORMALIZATION (HOW IT WORKS)
       ========================================== */
    .btn-primary,
    .btn-ghost,
    .btn-soft,
    .btn-pill,
    .btn-pill--lime,
    .btn-pill--violet,
    .btn-pill--blue{
      background-image: none !important;
      box-shadow: none !important;
    }
    .btn-primary{
      background-color: #b9c85a !important;
      border-color: rgba(0,0,0,0.72) !important;
      color: #050509 !important;
    }
    .btn-ghost,
    .btn-soft,
    .btn-pill,
    .btn-pill--lime,
    .btn-pill--violet,
    .btn-pill--blue{
      background-color: rgba(3,7,22,0.92) !important;
      border-color: rgba(255,255,255,0.14) !important;
      color: rgba(247,251,255,0.92) !important;
    }

    /* Keep surface action buttons visually aligned with explicit hover feedback. */
    .surface-actions .btn.btn-pill:hover,
    .surface-actions .btn.btn-pill--blue:hover,
    .surface-actions .btn.btn-pill--violet:hover{
      background-color: rgba(8,12,30,0.98) !important;
      border-color: rgba(185,200,90,0.56) !important;
      color: rgba(247,251,255,0.98) !important;
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(0,0,0,0.32);
    }

    .help-cta .btn.btn-ghost:hover{
      background-color: rgba(8,12,30,0.98) !important;
      border-color: rgba(185,200,90,0.56) !important;
      color: rgba(247,251,255,0.98) !important;
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(0,0,0,0.32);
    }

    .how-hero .hero-cta-row .btn.btn-ghost:hover{
      background-color: rgba(8,12,30,0.98) !important;
      border-color: rgba(185,200,90,0.56) !important;
      color: rgba(247,251,255,0.98) !important;
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(0,0,0,0.32);
    }

    :is(
      .panel,
      .toc-card,
      .toc-link,
      .toc-link.is-active,
      .overview-rail,
      .overview-card,
      .install-card,
      .guide-card,
      .surface-card,
      .surface-card-icon,
      .model-rail,
      .model-card,
      .privacy-card,
      .help-cta,
      .lightbox-dialog,
      .lightbox-header,
      .lightbox-footer,
      .guide-step,
      .copy-toast,
      .passport-card
    ){
      background-color: rgba(3,7,22,0.96) !important;
      background-image: none !important;
      border-color: rgba(255,255,255,0.14) !important;
      box-shadow: none !important;
      backdrop-filter: none !important;
      -webkit-backdrop-filter: none !important;
    }

    .toc-dot,
    .dot.is-active{
      background: #b9c85a !important;
      box-shadow: none !important;
    }

    .lightbox-backdrop{
      background: rgba(1,3,10,0.96) !important;
      backdrop-filter: blur(8px);
    }

    .lightbox .pill,
    .lightbox .guide-step{
      border-radius: 6px !important;
      background-image: none !important;
    }

    .page-inner :is(
      [class*="card"],
      [class*="panel"],
      [class*="rail"],
      [class*="surface"],
      [class*="overview"],
      [class*="install"],
      [class*="guide"],
      [class*="toc"],
      [class*="model"],
      [class*="privacy"],
      [class*="help"],
      [class*="passport"]
    ){
      background-image: none !important;
    }