:root {
    color-scheme: light;
    --ink: #0A1633;
    --ink-2: #111F45;
    --ink-3: #182A5C;
    --ink-line: rgba(255,255,255,.12);
    --ink-text: #EAF0FF;
    --ink-muted: #B9C6E8;

    --paper: #F4F6FC;
    --surface: #FFFFFF;
    --surface-2: #EDF1FA;
    --line: #D8DFEF;
    --line-strong: #B9C4E0;
    --text: #121A33;
    --muted: #121A33;

    --blue: #1F4FD8;
    --blue-deep: #173FB3;
    --blue-soft: #E7EDFF;
    --blue-text: #1F4FD8;
    --btn-text: #FFFFFF;

    --amber: #F2B705;
    --amber-ink: #6B4B00;
    --amber-soft: #FFF3C4;

    --green: #1D9A57;
    --green-ink: #146B3D;
    --green-soft: #DFF4E7;

    --red: #D93F38;
    --red-ink: #9B2A25;
    --red-soft: #FCE5E3;

    --shadow-sm: 0 1px 2px rgba(18,26,51,.06);
    --shadow: 0 1px 2px rgba(18,26,51,.05), 0 18px 40px -18px rgba(18,26,51,.22);
    --shadow-lg: 0 2px 4px rgba(18,26,51,.08), 0 44px 90px -30px rgba(18,26,51,.42);
    --nav-bg: rgba(255,255,255,.86);
    --grid-line: rgba(31,79,216,.075);
    --radius: 14px;
    --radius-sm: 9px;

    --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
    --body: "IBM Plex Sans", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    --data: "IBM Plex Sans", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
  @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
  body {
    margin: 0;
    background: var(--paper);
    color: var(--text);
    font-family: var(--body);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  img, svg { max-width: 100%; display: block; }
  [hidden] { display: none !important; }
  a { color: var(--blue-text); text-decoration: none; }
  a:hover { text-decoration: underline; text-underline-offset: 3px; }
  :focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; border-radius: 4px; }
  h1, h2, h3, h4 { margin: 0; font-family: var(--display); text-wrap: balance; }
  p { margin: 0; }
  ul, ol { margin: 0; padding: 0; list-style: none; }
  button { font: inherit; cursor: pointer; }
  strong, b { font-weight: 600; }

  .wrap { width: min(100% - 48px, 1180px); margin-inline: auto; }
  @media (max-width: 600px) { .wrap { width: min(100% - 32px, 1180px); } }

  /* ---------- Type roles ---------- */
  .eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--display);
    font-variation-settings: "wdth" 118;
    font-weight: 700; font-size: .9rem; letter-spacing: .12em; text-transform: uppercase;
    color: var(--text);
  }
  .eyebrow { color: var(--text); }
  .eyebrow::before { content: ""; width: 10px; height: 10px; border-radius: 2px; background: var(--amber); flex: none; }
  .h1 {
    font-size: clamp(2.45rem, 5.4vw, 4.4rem);
    line-height: 1.02; letter-spacing: -.028em; font-weight: 700;
  }
  .h2 {
    font-size: clamp(1.85rem, 3.3vw, 2.7rem);
    line-height: 1.08; letter-spacing: -.022em; font-weight: 700;
  }
  .h3 { font-size: 1.15rem; line-height: 1.3; letter-spacing: -.01em; font-weight: 600; }
  .lede { font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.55; color: var(--muted); max-width: 60ch; }
  .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
  .measure { max-width: 62ch; }

  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 22px; border-radius: var(--radius-sm);
    font-family: var(--display); font-weight: 600; font-size: .98rem; letter-spacing: -.005em;
    border: 1px solid transparent; text-decoration: none; white-space: nowrap;
    transition: transform .15s ease, background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
  }
  .btn:hover { text-decoration: none; transform: translateY(-1px); }
  .btn-primary { background: var(--blue); color: var(--btn-text); box-shadow: 0 8px 20px -10px rgba(31,79,216,.7); }
  .btn-primary:hover { background: var(--blue-deep); }
  .btn-ghost { background: transparent; color: var(--ink-text); border-color: rgba(255,255,255,.28); }
  .btn-ghost:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.06); }
  .btn-outline { background: var(--surface); color: var(--text); border-color: var(--line-strong); }
  .btn-outline:hover { border-color: var(--text); }
  .btn-amber { background: var(--amber); color: #2A1E00; }
  .btn-amber:hover { background: #FFC71F; }
  .btn svg { width: 16px; height: 16px; }

  /* ---------- Nav ---------- */
  .nav {
    position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
    background: var(--nav-bg);
    -webkit-backdrop-filter: saturate(160%) blur(14px); backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--line);
    color: var(--text);
  }
  .nav-inner { display: flex; align-items: center; gap: 24px; height: 68px; min-width: 0; }
  .brand { display: inline-flex; align-items: center; gap: 11px; color: var(--blue-text); text-decoration: none; flex: none; }
  .brand:hover { text-decoration: none; }
  .lw-mark {
    width: 36px; height: 36px; border-radius: 9px; flex: none;
    border: 2.5px solid currentColor;
    display: grid; place-items: center;
    font-family: var(--display); font-weight: 800; font-size: 15px; letter-spacing: -.03em; line-height: 1;
  }
  .brand-logo { height: 46px; width: auto; max-width: none; display: block; }
  .console-logo { height: 21px; width: auto; display: block; }
  .brand-text { display: grid; line-height: 1; gap: 3px; }
  .brand-name { font-family: var(--display); font-weight: 800; font-size: 1.12rem; letter-spacing: .02em; }
  .brand-tag { font-family: var(--display); font-variation-settings: "wdth" 112; font-weight: 500; font-size: .5rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
  .nav-links { display: flex; align-items: center; gap: 22px; margin-left: 4px; }
  .nav-links a { color: var(--muted); font-weight: 500; font-size: .95rem; }
  .nav-links .nav-menu-cta { display: none; }
  .nav-links a:hover { color: var(--text); text-decoration: none; }
  .nav-cta { margin-left: auto; display: flex; align-items: center; gap: 10px; }
  .nav .btn { padding: 10px 16px; font-size: .92rem; }
  .nav-toggle {
    display: none; margin-left: auto; width: 42px; height: 42px; border-radius: 8px;
    background: transparent; border: 1px solid var(--line-strong); color: var(--text);
    align-items: center; justify-content: center;
  }
  .nav-toggle svg { width: 20px; height: 20px; }
  @media (max-width: 1200px) { .nav-cta .btn-outline { display: none; } .nav-links { gap: 18px; } }
  @media (max-width: 1060px) { .brand-logo { height: 36px; } .nav-links a { font-size: .9rem; } }
  @media (max-width: 960px) {
    .nav-links { display: none; }
    .nav-cta .btn-outline { display: none; }
    .brand-logo { height: 38px; }
    .nav-links .nav-menu-cta { display: none; }
    .nav-toggle { display: inline-flex; }
    .nav-cta { margin-left: 0; }
    .nav.is-open .nav-links {
      display: grid; gap: 4px; position: absolute; left: 0; right: 0; top: 100%;
      background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
      padding: 12px 24px 18px; margin: 0;
    }
    .nav.is-open .nav-links a { padding: 10px 4px; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  }
  @media (max-width: 640px) {
    .brand-logo { height: 30px; }
    .nav-cta .btn-primary { display: none; }
    .nav.is-open .nav-links .nav-menu-cta { display: block; color: var(--blue-text); font-weight: 600; border-bottom: 0; }
  }
  @media (max-width: 360px) { .brand-logo { height: 26px; } }

  /* ---------- Seal (offline badge) ---------- */
  .seal {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 4px 11px 4px 8px; border-radius: 999px;
    background: var(--amber); color: #2A1E00;
    font-family: var(--display); font-weight: 700; font-size: .78rem; letter-spacing: .01em;
    white-space: nowrap;
  }
  .seal-light { width: 9px; height: 9px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 2px rgba(255,255,255,.7), 0 0 10px 2px rgba(217,63,56,.6); }
  @media (prefers-reduced-motion: no-preference) {
    .seal-light { animation: pulse 2.2s ease-in-out infinite; }
  }
  @keyframes pulse { 0%,100% { box-shadow: 0 0 0 2px rgba(255,255,255,.7), 0 0 6px 1px rgba(217,63,56,.35); } 50% { box-shadow: 0 0 0 2px rgba(255,255,255,.7), 0 0 12px 3px rgba(217,63,56,.75); } }
  .verified { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; font-weight: 500; color: var(--green-ink); white-space: nowrap; }
  .verified::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); }

  /* ---------- Hero ---------- */
  .hero { background: var(--surface); color: var(--text); position: relative; overflow: hidden; isolation: isolate; border-bottom: 1px solid var(--line); }
  .hero::before {
    content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background:
      radial-gradient(900px 560px at 80% 10%, rgba(31,79,216,.16), transparent 62%),
      radial-gradient(640px 420px at 4% 96%, rgba(242,183,5,.16), transparent 60%),
      linear-gradient(180deg, var(--surface), var(--paper));
  }
  .hero::after {
    content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(70% 70% at 50% 40%, #000 30%, transparent 100%);
    mask-image: radial-gradient(70% 70% at 50% 40%, #000 30%, transparent 100%);
  }
  .hero-inner {
    display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr); gap: clamp(32px, 5vw, 72px);
    align-items: center; padding-block: clamp(56px, 8vw, 104px) clamp(64px, 8vw, 110px);
  }
  .hero-copy { display: grid; gap: 26px; }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
  .proofs { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 6px; }
  .proof {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface);
    font-family: var(--data); font-size: .82rem; font-weight: 500; color: var(--muted); white-space: nowrap;
  }
  .proof i { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); flex: none; }
  @media (max-width: 960px) {
    .hero-inner { grid-template-columns: minmax(0, 1fr); }
  }

  /* ---------- Console (product illustration) ---------- */
  .console {
    background: var(--surface); color: var(--text);
    border-radius: 16px; box-shadow: var(--shadow-lg);
    border: 1px solid var(--line);
    overflow: hidden; font-size: .86rem;
    max-width: 640px; margin-inline: auto; width: 100%;
  }
  .console-bar {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--surface);
  }
  .console-title { font-family: var(--display); font-weight: 700; font-size: .9rem; letter-spacing: -.01em; }
  .chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 7px; border: 1px solid var(--line); font-size: .78rem; font-weight: 500; color: var(--text); background: var(--surface); }
  .console-bar .seal { margin-left: auto; }
  .console-body { padding: 14px; background: var(--surface-2); }

  .chain { position: relative; display: grid; gap: 10px; }
  .chain::before { content: ""; position: absolute; left: 13px; top: 18px; bottom: 18px; width: 2px; background: var(--line-strong); }
  .link { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 10px; align-items: start; position: relative; }
  .link-no {
    width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
    background: var(--surface); border: 2px solid var(--line-strong); color: var(--muted);
    font-family: var(--display); font-weight: 700; font-size: .78rem; position: relative; z-index: 1;
    transition: background-color .3s, border-color .3s, color .3s;
  }
  .link-card {
    background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; min-width: 0;
    transition: border-color .3s, box-shadow .3s, opacity .3s;
    opacity: .82;
  }
  .chain.static .link-card { opacity: 1; }
  .link.is-active .link-no { background: var(--blue); border-color: var(--blue); color: #fff; }
  .link.is-active .link-card { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); opacity: 1; }
  .link-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
  .link-name { font-family: var(--display); font-weight: 700; font-size: .88rem; }
  .link-meta { color: var(--muted); font-size: .8rem; font-family: var(--data); font-variant-numeric: tabular-nums; }

  .docket { width: 100%; border-collapse: collapse; font-size: .78rem; }
  .docket th { text-align: left; font-weight: 600; color: var(--muted); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; padding: 2px 6px 6px 0; border-bottom: 1px solid var(--line); }
  .docket td { padding: 6px 6px 6px 0; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
  .docket tr:last-child td { border-bottom: 0; }
  .docket td.item { white-space: normal; min-width: 0; }
  .docket .num { font-family: var(--data); font-variant-numeric: tabular-nums; font-weight: 500; }
  .docket .qty { text-align: right; padding-right: 10px; }
  .docket tr.struck td { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--red); }
  .docket tr.struck td:last-child { text-decoration: none; }
  @media (max-width: 560px) { .docket .col-mat { display: none; } }
  @media (max-width: 440px) { .docket .col-exp { display: none; } }
  .docket-wrap { position: relative; overflow: hidden; overflow-x: auto; }
  .scanline { position: absolute; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--blue) 30%, var(--blue) 70%, transparent); opacity: 0; pointer-events: none; }
  @media (prefers-reduced-motion: no-preference) {
    .link.is-active .scanline { animation: scan 2.6s linear infinite; }
  }
  @keyframes scan { 0% { top: 0; opacity: 0; } 8% { opacity: .9; } 92% { opacity: .9; } 100% { top: 100%; opacity: 0; } }

  .badge {
    display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 6px;
    font-family: var(--data); font-size: .72rem; font-weight: 600; letter-spacing: .01em; white-space: nowrap;
  }
  .badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
  .b-ok { background: var(--green-soft); color: var(--green-ink); }
  .b-verify { background: var(--amber-soft); color: var(--amber-ink); }
  .b-pen { background: var(--red-soft); color: var(--red-ink); }
  .b-unread { background: var(--surface-2); color: var(--muted); }
  .b-info { background: var(--blue-soft); color: var(--blue-text); }

  .verdicts { display: grid; gap: 6px; }
  .verdicts li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--line); font-size: .8rem; }
  .verdicts li:last-child { border-bottom: 0; }
  .verdicts .lot { font-family: var(--data); font-variant-numeric: tabular-nums; color: var(--muted); margin-left: 6px; }
  .verdict { font-family: var(--display); font-variation-settings: "wdth" 110; font-weight: 700; font-size: .66rem; letter-spacing: .08em; padding: 3px 8px; border-radius: 5px; white-space: nowrap; }
  .v-accepted { background: var(--green-soft); color: var(--green-ink); }
  .v-new { background: var(--blue-soft); color: var(--blue-text); }
  .v-progress { background: var(--amber-soft); color: var(--amber-ink); }
  .v-rejected { background: var(--red-soft); color: var(--red-ink); }

  .worklist { display: grid; gap: 6px; }
  .worklist li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px; align-items: baseline; font-size: .8rem; }
  .worklist .lot { font-family: var(--data); font-variant-numeric: tabular-nums; font-weight: 600; }
  .worklist .action { color: var(--muted); }
  .worklist .action b { color: var(--text); font-weight: 600; }

  .writes { display: grid; gap: 8px; }
  .write-row { display: grid; gap: 3px; padding: 8px 10px; border-radius: 7px; background: var(--surface-2); font-size: .78rem; }
  .write-path { font-family: var(--data); font-weight: 500; color: var(--text); word-break: break-word; }
  .write-path span { color: var(--muted); }
  .write-note { color: var(--muted); }
  .write-note b { color: var(--green-ink); font-weight: 600; }
  .audit-line {
    font-family: var(--mono); font-size: .72rem; line-height: 1.5; color: var(--muted);
    padding: 8px 10px; border-radius: 7px; background: var(--surface-2); border: 1px solid var(--line); color: var(--text); overflow-x: auto; white-space: nowrap;
  }
  .audit-line b { color: var(--blue-text); font-weight: 500; }
  .audit-line .hash { color: var(--amber-ink); font-weight: 500; }

  /* ---------- Sections ---------- */
  .section { padding-block: clamp(64px, 9vw, 112px); }
  .section-head { display: grid; gap: 16px; max-width: 760px; margin-bottom: clamp(36px, 5vw, 56px); }
  .section-head .lede { max-width: 62ch; }
  .section.ink { background: var(--surface-2); color: var(--text); border-block: 1px solid var(--line); }
  .section.alt { background: var(--surface); border-block: 1px solid var(--line); }

  /* Problem */
  .problem-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
  .problem { padding: 28px 28px 30px; display: grid; gap: 12px; align-content: start; border-right: 1px solid var(--line); }
  .problem:last-child { border-right: 0; }
  .problem-glyph { width: 40px; height: 40px; border-radius: 10px; background: var(--red-soft); color: var(--red-ink); display: grid; place-items: center; }
  .problem-glyph svg { width: 20px; height: 20px; }
  .problem p { color: var(--muted); font-size: .98rem; }
  .problem-answer { margin-top: 22px; display: flex; gap: 14px; align-items: flex-start; padding: 18px 22px; border-radius: var(--radius); background: var(--blue-soft); color: var(--text); }
  .problem-answer .lw-mark { color: var(--blue-text); width: 30px; height: 30px; font-size: 12px; border-width: 2px; border-radius: 7px; margin-top: 2px; }
  .problem-answer p { font-size: 1.02rem; }
  @media (max-width: 860px) {
    .problem-grid { grid-template-columns: minmax(0, 1fr); }
    .problem { border-right: 0; border-bottom: 1px solid var(--line); }
    .problem:last-child { border-bottom: 0; }
  }

  /* Video */
  .video-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .video-frame { position: relative; aspect-ratio: 16 / 9; max-width: 100%; border-radius: var(--radius); overflow: hidden; background: var(--ink); box-shadow: var(--shadow-lg); border: 1px solid var(--line); }
  .video-frame iframe, .video-frame video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
  .poster { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; color: var(--ink-text);
    background: radial-gradient(700px 420px at 30% 20%, rgba(31,79,216,.55), transparent 60%), radial-gradient(500px 360px at 90% 100%, rgba(242,183,5,.18), transparent 60%), var(--ink); }
  .poster::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 40px 40px; -webkit-mask-image: radial-gradient(70% 70% at 50% 50%, #000 20%, transparent 100%); mask-image: radial-gradient(70% 70% at 50% 50%, #000 20%, transparent 100%); pointer-events: none; }
  .poster-inner { position: relative; z-index: 1; display: grid; gap: 18px; justify-items: center; padding: 24px; }
  .poster-logo { height: clamp(34px, 5vw, 56px); width: auto; background: #fff; padding: 8px 14px; border-radius: 10px; box-sizing: content-box; }
  .play { width: clamp(64px, 8vw, 84px); height: clamp(64px, 8vw, 84px); border-radius: 50%; border: 0; background: var(--amber); color: #2A1E00; display: grid; place-items: center; box-shadow: 0 12px 30px -8px rgba(242,183,5,.7); transition: transform .15s ease; }
  .play:hover { transform: scale(1.06); }
  .play svg { width: 34%; height: 34%; margin-left: 6%; }
  .poster-title { font-family: var(--display); font-weight: 700; font-size: clamp(1.1rem, 2vw, 1.5rem); letter-spacing: -.01em; }
  .poster-sub { color: var(--ink-muted); font-size: .92rem; }
  .video-note { margin-top: 12px; font-size: .9rem; color: var(--muted); display: flex; gap: 8px; align-items: baseline; }
  .chapters { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
  .chapters li { display: grid; gap: 4px; padding: 14px 16px; border-right: 1px solid var(--line); align-content: start; }
  .chapters li:last-child { border-right: 0; }
  @media (max-width: 1000px) { .chapters { grid-template-columns: repeat(4, minmax(0, 1fr)); } .chapters li:nth-child(4) { border-right: 0; } .chapters li:nth-child(-n+4) { border-bottom: 1px solid var(--line); } }
  @media (max-width: 600px) { .chapters { grid-template-columns: repeat(2, minmax(0, 1fr)); } .chapters li:nth-child(odd) { border-right: 1px solid var(--line); } .chapters li:nth-child(even) { border-right: 0; } .chapters li { border-bottom: 1px solid var(--line); } .chapters span { display: none; } }
  .chapters .t { font-family: var(--data); font-weight: 600; font-variant-numeric: tabular-nums; color: var(--blue-text); font-size: .9rem; }
  .chapters b { display: block; font-weight: 600; font-size: .95rem; line-height: 1.25; }
  .chapters span { color: var(--muted); font-size: .84rem; line-height: 1.35; }
  .video-cta { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 10px; }
  @media (max-width: 900px) { .video-grid { grid-template-columns: minmax(0, 1fr); } }

  /* Steps */
  .steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: step; }
  .step { position: relative; display: grid; gap: 12px; padding: 26px 24px 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
  .step-no { font-family: var(--display); font-weight: 700; font-size: .8rem; color: var(--blue-text); letter-spacing: .06em; display: flex; align-items: center; gap: 10px; }
  .step-no::after { content: ""; flex: 1; height: 1px; background: var(--line); }
  .step p { color: var(--muted); font-size: .96rem; }
  .step-icon { width: 44px; height: 44px; border-radius: 11px; background: var(--blue-soft); color: var(--blue-text); display: grid; place-items: center; }
  .step-icon svg { width: 22px; height: 22px; }
  .steps-note { margin-top: 22px; display: flex; gap: 14px; align-items: flex-start; padding: 18px 22px; border-radius: var(--radius); background: var(--amber-soft); color: var(--text); border: 1px solid rgba(242,183,5,.35); }
  .steps-note svg { width: 22px; height: 22px; flex: none; color: var(--amber-ink); margin-top: 3px; }
  .steps-note p { font-size: .98rem; }
  @media (max-width: 1000px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (max-width: 560px) { .steps { grid-template-columns: minmax(0, 1fr); } }

  /* Features */
  .features { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
  .feature { display: grid; gap: 10px; align-content: start; padding: 22px 22px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
  .feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-strong); }
  .feature-icon { width: 38px; height: 38px; border-radius: 9px; background: var(--blue-soft); color: var(--blue-text); display: grid; place-items: center; margin-bottom: 4px; }
  .feature-icon svg { width: 20px; height: 20px; }
  .feature h3 { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
  .feature p { color: var(--muted); font-size: .94rem; }
  .tag { font-family: var(--display); font-variation-settings: "wdth" 110; font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 700; padding: 2px 7px; border-radius: 5px; background: var(--amber-soft); color: var(--amber-ink); }
  @media (max-width: 1000px) { .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (max-width: 560px) { .features { grid-template-columns: minmax(0, 1fr); } }

  /* Security */
  .sec-grid { display: grid; gap: 22px; }
  .controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
  .control { padding: 20px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm); display: grid; gap: 8px; align-content: start; }
  .control h3 { font-size: 1rem; display: flex; align-items: center; gap: 10px; }
  .control h3 svg { width: 18px; height: 18px; color: var(--blue-text); flex: none; }
  .control p { color: var(--muted); font-size: .92rem; }
  .control code { font-family: var(--mono); font-size: .82em; color: var(--text); background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
  @media (max-width: 1000px) { .controls { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (max-width: 600px) { .controls { grid-template-columns: minmax(0, 1fr); } }

  .ledger { border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--text); overflow: hidden; box-shadow: var(--shadow); }
  .ledger-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--surface-2); font-family: var(--mono); font-size: .78rem; color: var(--text); }
  .ledger-bar .verified { margin-left: auto; }
  .ledger-body { padding: 10px 0; overflow-x: auto; }
  .ledger-row { display: grid; grid-template-columns: 22px minmax(0, 1fr); align-items: center; padding: 6px 14px; font-family: var(--mono); font-size: .76rem; line-height: 1.5; color: var(--text); white-space: nowrap; position: relative; }
  .ledger-row::before { content: ""; width: 8px; height: 8px; border-radius: 50%; border: 2px solid var(--amber); background: var(--surface); position: relative; z-index: 1; }
  .ledger-row::after { content: ""; position: absolute; left: 17px; top: 50%; height: 100%; width: 2px; background: rgba(242,183,5,.5); }
  .ledger-row:last-child::after { display: none; }
  .ledger-row b { color: var(--blue-text); font-weight: 500; }
  .ledger-row .hash { color: var(--amber-ink); font-weight: 500; }
  .ledger-note { padding: 12px 14px 14px; border-top: 1px solid var(--line); font-size: .86rem; color: var(--text); }
  .ledger-note b { color: var(--text); }

  .prove { margin-top: clamp(40px, 5vw, 64px); border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow-sm); overflow: hidden; }
  .prove-head { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; padding: 22px 26px; border-bottom: 1px solid var(--line); }
  .prove-head h3 { font-size: 1.3rem; }
  .prove-head p { color: var(--muted); font-size: .95rem; flex-basis: 100%; }
  .prove-status { margin-left: auto; display: inline-flex; align-items: center; gap: 10px; font-family: var(--data); font-weight: 500; font-size: .84rem; color: var(--muted); }
  .prove-status .pill { padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line-strong); transition: background-color .3s, color .3s, border-color .3s; }
  .prove.is-done .prove-status .pill { background: #1D9A57; color: #fff; border-color: #1D9A57; }
  .checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .check { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 14px; padding: 18px 26px; border-bottom: 1px solid var(--line); cursor: pointer; transition: background-color .2s; }
  .check:nth-child(odd) { border-right: 1px solid var(--line); }
  .check:hover { background: var(--surface-2); }
  .check input { appearance: none; -webkit-appearance: none; width: 20px; height: 20px; margin: 3px 0 0; border-radius: 6px; border: 2px solid var(--line-strong); background: var(--surface); display: grid; place-items: center; cursor: pointer; transition: background-color .2s, border-color .2s; }
  .check input::after { content: ""; width: 10px; height: 6px; border-left: 2.5px solid #fff; border-bottom: 2.5px solid #fff; transform: rotate(-45deg) translate(1px, -1px); opacity: 0; transition: opacity .15s; }
  .check input:checked { background: #1D9A57; border-color: #1D9A57; }
  .check input:checked::after { opacity: 1; }
  .check b { display: block; font-family: var(--display); font-weight: 600; font-size: .98rem; margin-bottom: 3px; }
  .check span { color: var(--muted); font-size: .9rem; }
  .check code { font-family: var(--mono); font-size: .84em; color: var(--text); background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
  .check:nth-last-child(-n+2) { border-bottom: 0; }
  @media (max-width: 800px) {
    .checks { grid-template-columns: minmax(0, 1fr); }
    .check:nth-child(odd) { border-right: 0; }
    .check:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  }

  /* Compliance */
  .comp-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
  .clauses { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
  .clause { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 16px; padding: 18px 22px; border-bottom: 1px solid var(--line); }
  .clause:last-child { border-bottom: 0; }
  .clause-ref { font-family: var(--data); font-weight: 600; font-size: .84rem; color: var(--blue-text); padding-top: 4px; }
  .clause h3 { font-size: 1rem; margin-bottom: 4px; }
  .clause p { color: var(--muted); font-size: .94rem; }
  @media (max-width: 560px) { .clause { grid-template-columns: minmax(0, 1fr); gap: 6px; } }
  .stats { display: grid; gap: 14px; }
  .stat { padding: 22px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: grid; gap: 4px; }
  .stat-num { font-family: var(--display); font-weight: 700; font-size: 2.2rem; letter-spacing: -.03em; line-height: 1; color: var(--text); font-variant-numeric: tabular-nums; }
  .stat-num small { font-size: 1rem; font-weight: 600; color: var(--muted); letter-spacing: 0; margin-left: 6px; }
  .stat-label { font-weight: 600; font-size: .95rem; }
  .stat p { color: var(--muted); font-size: .9rem; }
  @media (max-width: 1000px) { .comp-grid { grid-template-columns: minmax(0, 1fr); } .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
  @media (max-width: 700px) { .stats { grid-template-columns: minmax(0, 1fr); } }

  /* Deployment */
  .deploy-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
  .folder { position: relative; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); padding: 22px 24px 24px; }
  .folder-tab { display: inline-flex; align-items: center; gap: 8px; font-family: var(--data); font-weight: 500; font-size: .84rem; color: var(--muted); margin-bottom: 14px; }
  .folder-tab svg { width: 16px; height: 16px; color: var(--amber-ink); }
  .tree { font-family: var(--data); font-size: .88rem; line-height: 1.75; display: grid; }
  .tree li { display: flex; gap: 10px; align-items: baseline; }
  .tree .k { color: var(--text); font-weight: 600; min-width: 17ch; }
  .tree .d { color: var(--muted); }
  .tree .lock { color: var(--amber-ink); }
  .folder-foot { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line-strong); display: flex; flex-wrap: wrap; gap: 8px; }
  .nope { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); font-size: .78rem; color: var(--muted); }
  .nope::before { content: "×"; color: var(--red); font-weight: 700; }
  .deploy-copy { display: grid; gap: 18px; }
  .ticks { display: grid; gap: 12px; }
  .ticks li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; align-items: start; font-size: 1rem; }
  .ticks svg { width: 22px; height: 22px; color: var(--green); margin-top: 2px; }
  .ticks b { font-weight: 600; }
  .ticks span { color: var(--muted); }
  .licence { margin-top: 6px; padding: 18px 20px; border-radius: var(--radius); background: var(--surface-2); border: 1px solid var(--line); display: grid; gap: 6px; }
  .licence h3 { font-size: 1rem; }
  .licence p { color: var(--muted); font-size: .94rem; }
  @media (max-width: 900px) { .deploy-grid { grid-template-columns: minmax(0, 1fr); } }

  /* Departments */
  .depts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
  .dept { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); font-weight: 500; font-size: .95rem; display: inline-flex; align-items: center; gap: 8px; }
  .dept i { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
  .dept.pat i { background: var(--amber); }

  /* Demo / CTA */
  .cta { background: var(--paper); color: var(--text); position: relative; overflow: hidden; isolation: isolate; border-top: 1px solid var(--line); }
  .cta::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(760px 460px at 12% 18%, rgba(31,79,216,.14), transparent 62%), radial-gradient(520px 360px at 92% 90%, rgba(242,183,5,.14), transparent 60%); }
  .cta-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
  .cta-copy { display: grid; gap: 22px; }
  .cta-points { display: grid; gap: 12px; }
  .cta-points li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; color: var(--muted); }
  .cta-points svg { width: 20px; height: 20px; color: var(--green); margin-top: 3px; }
  .cta-points b { color: var(--text); font-weight: 600; }
  .investor { margin-top: 8px; padding: 18px 20px; border-radius: var(--radius); border: 1px solid rgba(242,183,5,.4); background: var(--amber-soft); display: grid; gap: 6px; }
  .investor h3 { font-size: 1rem; display: flex; align-items: center; gap: 10px; }
  .investor h3 .tag { background: var(--amber); color: #2A1E00; }
  .investor p { color: var(--muted); font-size: .94rem; }

  .form { background: var(--surface); color: var(--text); border-radius: 16px; padding: 26px; box-shadow: var(--shadow-lg); border: 1px solid var(--line); display: grid; gap: 14px; }
  .form h3 { font-size: 1.2rem; }
  .form-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
  .field { display: grid; gap: 6px; }
  .field label { font-size: .84rem; font-weight: 600; color: var(--text); }
  .field input, .field select, .field textarea {
    width: 100%; padding: 11px 12px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--text);
    font: inherit; font-size: .95rem; transition: border-color .15s, box-shadow .15s;
  }
  .field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
  .field textarea { min-height: 96px; resize: vertical; }
  .form .btn { width: 100%; }
  .form-fine { font-size: .8rem; color: var(--muted); }
  .form-done { display: grid; gap: 10px; padding: 8px 4px; }
  .form-done .verified { font-size: 1rem; }
  .form-done p { color: var(--muted); }
  @media (max-width: 900px) { .cta-grid { grid-template-columns: minmax(0, 1fr); } }
  @media (max-width: 520px) { .form-row { grid-template-columns: minmax(0, 1fr); } }

  /* Footer */
  .footer { background: var(--surface); color: var(--muted); border-top: 1px solid var(--line); padding-block: 44px 36px; }
  .footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
  .footer h4 { font-family: var(--display); font-variation-settings: "wdth" 112; font-weight: 600; font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text); margin-bottom: 12px; }
  .footer ul { display: grid; gap: 8px; font-size: .92rem; }
  .footer a { color: var(--muted); }
  .footer a:hover { color: var(--text); }
  .footer .brand-logo { height: 40px; }
  .footer-brand p { margin-top: 14px; font-size: .9rem; max-width: 34ch; }
  .footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; font-size: .82rem; }
  @media (max-width: 800px) { .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
  @media (max-width: 480px) { .footer-grid { grid-template-columns: minmax(0, 1fr); } }

  /* Reveal */
  @media (prefers-reduced-motion: no-preference) {
    .reveal { transform: translateY(18px); transition: transform .7s cubic-bezier(.2,.7,.2,1); }
    .reveal.in { transform: none; }
  }

  /* ---------- Inner pages ---------- */
  .nav-links a[aria-current="page"] { color: var(--blue-text); }
  .subhero { background: var(--surface); border-bottom: 1px solid var(--line); position: relative; overflow: hidden; isolation: isolate; }
  .subhero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(800px 420px at 85% 0%, rgba(31,79,216,.14), transparent 62%), linear-gradient(180deg, var(--surface), var(--paper)); }
  .subhero-inner { display: grid; gap: 18px; max-width: 800px; padding-block: clamp(48px, 7vw, 88px) clamp(44px, 6vw, 72px); }
  .subhero .h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); }
  .subhero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
  .jump { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
  .jump a { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); font-size: .86rem; font-weight: 500; color: var(--text); }
  .jump a:hover { border-color: var(--blue); color: var(--blue-text); text-decoration: none; }

  .frow { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; padding-block: clamp(36px, 5vw, 64px); border-bottom: 1px solid var(--line); scroll-margin-top: 90px; }
  .frow:last-child { border-bottom: 0; }
  .frow.flip .frow-panel { order: -1; }
  .frow-copy { display: grid; gap: 14px; }
  .frow-copy .h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
  .frow-copy p { color: var(--muted); }
  .frow-copy ul { display: grid; gap: 8px; }
  .frow-copy li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 10px; color: var(--muted); font-size: .97rem; }
  .frow-copy li::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--amber); margin-top: 8px; }
  .frow-copy li b { color: var(--text); font-weight: 600; }
  .frow-panel { min-width: 0; }
  .panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; font-size: .86rem; }
  .panel-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 10px 14px; border-bottom: 1px solid var(--line); font-family: var(--display); font-weight: 700; font-size: .9rem; }
  .panel-bar .chip { margin-left: auto; font-weight: 500; }
  .panel-body { padding: 14px; display: grid; gap: 10px; background: var(--surface-2); }
  .panel-body .link-card { opacity: 1; }
  .kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
  .kpi { background: var(--surface); border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; display: grid; gap: 2px; }
  .kpi b { font-family: var(--display); font-size: 1.4rem; font-weight: 700; line-height: 1.1; }
  .kpi span { color: var(--muted); font-size: .74rem; }
  .kpi a { font-size: .74rem; font-weight: 600; }
  @media (max-width: 520px) { .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  .drop { border: 2px dashed var(--blue); border-radius: 10px; background: var(--blue-soft); padding: 14px; display: grid; gap: 4px; }
  .drop b { color: var(--blue-text); }
  .drop span { color: var(--muted); font-size: .8rem; }
  .rows { display: grid; gap: 6px; }
  .rows li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 8px 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
  .rows li small { display: block; color: var(--muted); font-size: .76rem; }
  .rows .verdict, .rows .badge { justify-self: end; }
  .choice { display: flex; gap: 6px; flex-wrap: wrap; }
  .choice span { padding: 4px 10px; border-radius: 6px; border: 1px solid var(--line-strong); font-size: .78rem; font-weight: 500; background: var(--surface); }
  .choice span.on { background: var(--blue); color: #fff; border-color: var(--blue); }
  .bar { display: grid; grid-template-columns: 110px minmax(0, 1fr) 40px; gap: 10px; align-items: center; font-size: .8rem; }
  .bar i { display: block; height: 10px; border-radius: 5px; background: var(--surface); border: 1px solid var(--line); overflow: hidden; }
  .bar i::after { content: ""; display: block; height: 100%; width: var(--w, 50%); background: var(--blue); border-radius: 5px; }
  .bar.warn i::after { background: var(--amber); }
  .bar.bad i::after { background: var(--red); }
  .bar span:last-child { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }
  .mini-cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
  .mini-cal span { aspect-ratio: 1; display: grid; place-items: center; border-radius: 6px; background: var(--surface); border: 1px solid var(--line); font-size: .74rem; font-variant-numeric: tabular-nums; }
  .mini-cal span.hot { background: var(--amber-soft); border-color: var(--amber); color: var(--amber-ink); font-weight: 600; }
  .mini-cal span.now { background: var(--blue); color: #fff; border-color: var(--blue); }
  .story { display: grid; gap: 0; }
  .story li { display: grid; grid-template-columns: 90px 16px minmax(0, 1fr); gap: 10px; align-items: start; padding: 6px 0; font-size: .82rem; }
  .story .d { color: var(--muted); font-variant-numeric: tabular-nums; }
  .story .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--blue); margin-top: 5px; position: relative; }
  .story li:not(:last-child) .dot::after { content: ""; position: absolute; left: 4px; top: 12px; width: 2px; height: 26px; background: var(--line-strong); }
  .story b { display: block; font-weight: 600; }
  .story span.m { color: var(--muted); }
  .sig { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 8px 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; font-size: .8rem; }
  .sig b { font-family: var(--display); }
  .sig .ini { margin-left: auto; padding: 2px 8px; border: 1px solid var(--line-strong); border-radius: 5px; font-weight: 600; }
  .scan-code { font-family: var(--mono); font-size: .78rem; padding: 8px 10px; background: var(--surface); border: 1px solid var(--line); color: var(--text); border-radius: 7px; overflow-x: auto; white-space: nowrap; }
  .scan-code b { color: var(--amber-ink); font-weight: 600; }
  @media (max-width: 860px) { .frow { grid-template-columns: minmax(0, 1fr); } .frow.flip .frow-panel { order: 0; } }

  .spec { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
  .spec-wrap { overflow-x: auto; border-radius: var(--radius); }
  .spec th, .spec td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .95rem; }
  .spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
  .spec th { width: 180px; font-family: var(--display); font-weight: 600; color: var(--text); background: var(--surface-2); }
  .spec td { color: var(--muted); }
  .spec code { font-family: var(--mono); font-size: .84em; color: var(--text); background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }

  .cards3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .cards2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px 24px; display: grid; gap: 10px; align-content: start; }
  .card h3 { font-size: 1.05rem; }
  .card p, .card li { color: var(--muted); font-size: .95rem; }
  .card ul { display: grid; gap: 6px; }
  .card li { position: relative; padding-left: 16px; }
  .card li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }
  .card code { font-family: var(--mono); font-size: .84em; color: var(--text); background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
  .card .badge-line { display: flex; gap: 6px; flex-wrap: wrap; }
  @media (max-width: 960px) { .cards3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (max-width: 600px) { .cards3, .cards2 { grid-template-columns: minmax(0, 1fr); } }

  .note { display: flex; gap: 14px; align-items: flex-start; padding: 18px 22px; border-radius: var(--radius); background: var(--amber-soft); border: 1px solid rgba(242,183,5,.35); }
  .note svg { width: 22px; height: 22px; flex: none; color: var(--amber-ink); margin-top: 3px; }
  .note p { font-size: .98rem; }
  .note.blue { background: var(--blue-soft); border-color: transparent; }
  .note.blue svg { color: var(--blue-text); }

  .term { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
  .term > div { padding: 20px 22px; border-right: 1px solid var(--line); display: grid; gap: 6px; align-content: start; }
  .term > div:last-child { border-right: 0; }
  .term .when { font-family: var(--display); font-variation-settings: "wdth" 112; font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--blue-text); font-weight: 600; }
  .term h3 { font-size: 1rem; }
  .term p { color: var(--muted); font-size: .92rem; }
  .term .state { display: inline-flex; padding: 2px 8px; border-radius: 5px; font-size: .74rem; font-weight: 600; width: fit-content; }
  .s-ok { background: var(--green-soft); color: var(--green-ink); }
  .s-warn { background: var(--amber-soft); color: var(--amber-ink); }
  .s-bad { background: var(--red-soft); color: var(--red-ink); }
  @media (max-width: 900px) { .term { grid-template-columns: repeat(2, minmax(0, 1fr)); } .term > div:nth-child(2) { border-right: 0; } .term > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); } }
  @media (max-width: 520px) { .term { grid-template-columns: minmax(0, 1fr); } .term > div { border-right: 0; border-bottom: 1px solid var(--line); } .term > div:last-child { border-bottom: 0; } }

  .faq { display: grid; gap: 10px; }
  .faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 0 20px; }
  .faq summary { cursor: pointer; padding: 16px 0; font-family: var(--display); font-weight: 600; font-size: 1.02rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after { content: "+"; font-size: 1.3rem; color: var(--blue-text); flex: none; }
  .faq details[open] summary::after { content: "\2212"; }
  .faq details p { padding-bottom: 18px; color: var(--muted); }
  .prose { display: grid; gap: 16px; max-width: 68ch; }
  .prose p { color: var(--muted); font-size: 1.05rem; }
  .prose p strong { color: var(--text); }
  .prose h3 { font-size: 1.2rem; margin-top: 8px; }
  .split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
  @media (max-width: 900px) { .split { grid-template-columns: minmax(0, 1fr); } }
  .uses { display: grid; gap: 12px; }
  .uses li { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 14px; align-items: start; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
  .uses .pct { font-family: var(--display); font-weight: 700; font-size: 1.3rem; color: var(--blue-text); font-variant-numeric: tabular-nums; }
  .uses b { display: block; font-weight: 600; }
  .uses span { color: var(--muted); font-size: .94rem; }
  .contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
  @media (max-width: 900px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
  .ways { display: grid; gap: 12px; }
  .way { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 14px; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; scroll-margin-top: 90px; }
  .way-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--blue-soft); color: var(--blue-text); display: grid; place-items: center; }
  .way-icon svg { width: 22px; height: 22px; }
  .way h3 { font-size: 1.02rem; margin-bottom: 4px; }
  .way p { color: var(--muted); font-size: .94rem; }
  .cta-band { background: var(--paper); border-top: 1px solid var(--line); }
  .cta-band .wrap { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; padding-block: 40px; }
  .cta-band h2 { font-size: clamp(1.3rem, 2.4vw, 1.8rem); }
  .cta-band p { color: var(--muted); }
  .cta-band .actions { display: flex; gap: 10px; flex-wrap: wrap; }

  /* ---------- No AI, no network ---------- */
  .proof.proof-strong { border-color: var(--ink); background: var(--ink); color: var(--ink-text); font-weight: 600; white-space: normal; }
  .proof.proof-strong a { color: inherit; }
  .proof.proof-strong i { background: var(--red); box-shadow: 0 0 0 2px rgba(255,255,255,.25); }

  .paths { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .path { border-radius: var(--radius); padding: 22px 22px 24px; display: grid; gap: 16px; align-content: start; border: 1px solid var(--line); }
  .path-cloud { background: var(--paper); }
  .path-lw { background: var(--green-soft); border-color: rgba(29,154,87,.35); }
  .path-head { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: baseline; justify-content: space-between; }
  .path-tag { font-family: var(--display); font-weight: 700; font-size: 1.1rem; }
  .path-count { font-size: .9rem; font-weight: 600; }
  .path-count b { font-family: var(--display); font-size: 1.5rem; margin-right: 4px; }
  .path-cloud .path-count { color: var(--red-ink); }
  .path-lw .path-count { color: var(--green-ink); }

  .hops { display: grid; gap: 0; }
  .hop { position: relative; display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 12px; padding-bottom: 14px; }
  .hop:last-child { padding-bottom: 0; }
  .hop::before { content: ""; position: absolute; left: 8px; top: 16px; bottom: -2px; width: 2px; background: var(--line-strong); }
  .hop:last-child::before { display: none; }
  .hop-dot { width: 18px; height: 18px; border-radius: 50%; background: var(--surface); border: 2px solid var(--line-strong); margin-top: 2px; position: relative; z-index: 1; }
  .hop b { display: block; font-size: .98rem; line-height: 1.35; }
  .hop span { display: block; font-size: .88rem; color: var(--muted); opacity: .8; }
  .path-cloud .hop.out .hop-dot { border-color: var(--red); background: var(--red-soft); }
  .path-cloud .hop.out::before, .path-cloud .hop:first-child::before { background: repeating-linear-gradient(to bottom, var(--red) 0 5px, transparent 5px 9px); }
  .path-lw .hop-dot { border-color: var(--green); background: var(--surface); }
  .path-lw .hop::before { background: var(--green); }

  .machine { position: relative; border: 2px dashed var(--green); border-radius: var(--radius-sm); padding: 26px 18px 18px; background: var(--surface); }
  .machine-label { position: absolute; top: -12px; left: 14px; padding: 2px 10px; border-radius: 999px; background: var(--green); color: #fff; font-size: .78rem; font-weight: 600; }
  .wall { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; color: var(--green-ink); }
  .wall svg { width: 20px; height: 20px; flex: none; margin-top: 2px; color: var(--red); }

  .zeros { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
  .zero { padding: 20px 22px; border-radius: var(--radius); background: var(--ink); color: var(--ink-text); display: grid; gap: 4px; align-content: start; }
  .zero-num { font-family: var(--display); font-weight: 800; font-size: 3rem; line-height: 1; letter-spacing: -.03em; color: #fff; }
  .zero-label { font-family: var(--display); font-weight: 700; font-size: 1.05rem; }
  .zero p { color: var(--ink-muted); font-size: .92rem; margin-top: 4px; }

  @media (max-width: 1000px) { .zeros { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (max-width: 860px) {
    .paths { grid-template-columns: minmax(0, 1fr); }
  }
  @media (max-width: 560px) {
    .zeros { grid-template-columns: minmax(0, 1fr); }
  }

  /* ---------- Hero: real app screenshot ---------- */
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: clamp(36px, 5vw, 56px); }
  .hero-copy { max-width: 820px; }
  .shot { margin: 0; display: grid; gap: 12px; }
  .shot-window { border-radius: 14px; box-shadow: var(--shadow-lg); }
  .shot-window img { display: block; width: 100%; }
  .shot-bar {
    display: flex; align-items: center; gap: 7px; padding: 10px 14px;
    background: var(--surface-2); border: 1px solid var(--line); border-bottom: 0; border-radius: 14px 14px 0 0;
  }
  .shot-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); }
  .shot-addr { margin-left: 10px; padding: 3px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-family: var(--mono); font-size: .76rem; color: var(--muted); }
  .shot-window img { height: auto; border: 1px solid var(--line); border-top: 0; border-radius: 0 0 14px 14px; }
  .shot figcaption { font-size: .88rem; color: var(--muted); opacity: .8; }
  @media (max-width: 600px) { .shot-addr { display: none; } }