/* ============ Tokens (one accent: amber, locked) ============ */
  :root {
    --ink: #0a0d12;
    --ink-2: #0d1118;
    --panel: #10151d;
    --panel-2: #161c26;
    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.14);
    --text: #e9eef4;
    --muted: #9aa6b4;
    --faint: #76838f;
    --accent: #ffb454;
    --accent-soft: rgba(255, 180, 84, 0.12);
    --accent-ink: #1a1203;
    --danger: #ff7a7a;
    --radius: 14px;
    --radius-sm: 8px;
    --font-sans: "Space Grotesk", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, monospace;
    --nav-h: 64px;
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
  body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--text);
    background-color: var(--ink);
    background-image:
      radial-gradient(1100px 520px at 88% -12%, rgba(255, 180, 84, 0.09), transparent 62%),
      radial-gradient(900px 500px at -10% 110%, rgba(255, 180, 84, 0.05), transparent 60%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    line-height: 1.55;
  }

  ::selection { background: var(--accent); color: var(--accent-ink); }

  .wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

  a { color: inherit; }

  /* ============ Nav ============ */
  .nav {
    position: sticky; top: 0; z-index: 50;
    height: var(--nav-h);
    display: flex; align-items: center;
    background: rgba(10, 13, 18, 0.82);
    -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; }
  .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
  .brand-mark { height: 30px; width: auto; display: block; object-fit: contain; }
  .nav-links { display: flex; align-items: center; gap: 4px; }
  .nav-links a {
    text-decoration: none; color: var(--muted);
    font-size: 14px; font-weight: 500; padding: 8px 12px; border-radius: var(--radius-sm);
    transition: color 0.18s ease, background 0.18s ease;
  }
  .nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

  /* ============ Buttons ============ */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font-family: var(--font-sans); font-weight: 600; font-size: 15px;
    padding: 11px 20px; border-radius: 999px; border: 1px solid transparent;
    cursor: pointer; text-decoration: none; white-space: nowrap;
    transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  }
  .btn:active { transform: translateY(1px) scale(0.99); }
  .btn-primary { background: var(--accent); color: var(--accent-ink); }
  .btn-primary:hover { box-shadow: 0 0 0 4px rgba(255,180,84,0.18), 0 8px 30px -10px rgba(255,180,84,0.5); }
  .btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
  .btn-ghost:hover { border-color: rgba(255,180,84,0.5); color: var(--accent); }

  /* ============ Hero ============ */
  .hero { min-height: calc(100dvh - var(--nav-h)); display: grid; align-items: center; padding: 40px 0 72px; }
  .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
  .eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--accent); margin: 0 0 20px;
  }
  .eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--accent); }
  .hero-logo { height: clamp(54px, 8vw, 76px); width: auto; display: block; margin: 0 0 20px; object-fit: contain; }
  .hero h1 {
    font-size: clamp(34px, 4.6vw, 58px); line-height: 1.04; letter-spacing: -0.02em;
    margin: 0 0 22px; font-weight: 600; max-width: 30ch; text-wrap: balance;
  }
  .hero h1 .hl { color: var(--accent); }
  .hero-sub { color: var(--muted); font-size: 17px; max-width: 46ch; margin: 0 0 30px; }
  .hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
  .hero-meta {
    display: flex; align-items: center; gap: 10px; margin-top: 34px;
    font-family: var(--font-mono); font-size: 12px; color: var(--faint);
  }
  .hero-mobile-strip { display: none; }
  .hero-mobile-strip .eyebrow { margin-bottom: 10px; }
  .hero-mobile-strip p { color: var(--muted); font-size: 15px; margin: 0; max-width: 42ch; line-height: 1.5; }
  .status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px rgba(255,180,84,0.8); animation: pulse 2.4s ease-in-out infinite; }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

  /* ============ Tool card ============ */
  .tool {
    background: linear-gradient(180deg, var(--panel-2), var(--panel));
    border: 1px solid var(--line-strong);
    border-radius: 18px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 30px 80px -30px rgba(0,0,0,0.7);
    overflow: hidden;
  }
  .tool-bar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 13px 18px; border-bottom: 1px solid var(--line);
    font-family: var(--font-mono); font-size: 12px; color: var(--muted);
  }
  .tool-bar .lights { display: flex; gap: 6px; }
  .tool-bar .light { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); }
  .tool-bar .light.on { background: var(--accent); box-shadow: 0 0 8px rgba(255,180,84,0.7); }
  .tool-body { padding: 22px; }
  .field { margin-bottom: 18px; }
  .field label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; letter-spacing: 0.01em; }
  .field label small { color: var(--faint); font-weight: 500; font-family: var(--font-mono); }
  .input-row { display: flex; gap: 8px; }
  input[type="text"], input[type="date"] {
    width: 100%; padding: 11px 14px;
    background: var(--ink-2); border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
    color: var(--text); font-family: var(--font-mono); font-size: 14px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
  }
  input::placeholder { color: var(--faint); }
  input:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,180,84,0.18); }
  button:focus-visible, a:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
    outline: none; box-shadow: 0 0 0 3px rgba(255,180,84,0.28);
  }
  .chip-btn {
    flex: 0 0 auto; padding: 0 14px; font-family: var(--font-mono); font-size: 12px;
    background: var(--accent-soft); color: var(--accent); border: 1px solid rgba(255,180,84,0.35);
    border-radius: var(--radius-sm); cursor: pointer; transition: background 0.18s ease;
  }
  .chip-btn:hover { background: rgba(255,180,84,0.2); }
  .field-error { color: var(--danger); font-size: 12.5px; margin-top: 7px; display: none; font-family: var(--font-mono); }
  .field-error.show { display: block; }
  .field-hint { font-family: var(--font-mono); font-size: 12px; color: var(--faint); margin-top: 7px; }
  .field-note {
    margin-top: 10px; padding: 10px 12px; border: 1px solid rgba(255,180,84,0.32);
    background: rgba(255,180,84,0.06); border-radius: var(--radius-sm);
    color: var(--muted); font-size: 12.5px; line-height: 1.55; font-family: var(--font-mono);
    display: flex; gap: 9px; align-items: flex-start;
  }
  .field-note .note-icon { color: var(--accent); flex: 0 0 auto; }
  .field-note strong { color: var(--accent); font-weight: 700; }
  .access-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
  .access-status { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: 0.02em; }
  .status-dot.locked { background: #5c6877; box-shadow: none; animation: none; }
  .access-cta { padding: 9px 16px; font-size: 14px; }
  .tool-generate { width: 100%; margin-top: 4px; }
  .out { margin-top: 20px; border-top: 1px dashed var(--line-strong); padding-top: 18px; }
  .out-row {
    display: flex; align-items: center; justify-content: space-between; gap: 14px;
    padding: 13px 0; border-bottom: 1px solid var(--line);
  }
  .out-row:last-child { border-bottom: none; }
  .out-label { font-family: var(--font-mono); font-size: 12px; color: var(--faint); letter-spacing: 0.08em; text-transform: uppercase; }
  .out-code { font-family: var(--font-mono); font-size: 26px; font-weight: 600; letter-spacing: 0.08em; color: var(--text); }
  .out-code .caret { color: var(--accent); }
  .copy-btn {
    font-family: var(--font-mono); font-size: 12px; color: var(--muted);
    background: transparent; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
    padding: 7px 12px; cursor: pointer; transition: all 0.18s ease; flex: 0 0 auto;
  }
  .copy-btn:hover { color: var(--accent); border-color: rgba(255,180,84,0.5); }
  .copy-btn.copied { color: var(--accent); border-color: rgba(255,180,84,0.6); }
  .out-empty {
    font-family: var(--font-mono); font-size: 13px; color: var(--faint);
    display: flex; align-items: center; gap: 10px; padding: 8px 0;
  }
  .out-empty .caret { color: var(--accent); }
  .out-detail { font-family: var(--font-mono); font-size: 11.5px; color: var(--faint); margin-top: 14px; word-break: break-all; }
  .out-error {
    font-family: var(--font-mono); font-size: 12.5px; color: var(--danger);
    background: rgba(255, 122, 122, 0.08); border: 1px solid rgba(255, 122, 122, 0.3);
    border-radius: var(--radius-sm); padding: 10px 12px; margin-bottom: 12px;
  }
  .out-error a { color: var(--accent); }

  /* ============ Sections ============ */
  section { padding: 92px 0; }
  .sec-head { max-width: 60ch; margin-bottom: 48px; }
  .sec-head h2 { font-size: clamp(26px, 3.2vw, 38px); font-weight: 600; letter-spacing: -0.015em; margin: 0 0 16px; line-height: 1.12; text-wrap: balance; }
  .sec-head p { color: var(--muted); font-size: 16px; margin: 0; }

  /* How it works — numbered vertical rail */
  .steps { display: grid; grid-template-columns: 1fr; gap: 0; counter-reset: step; }
  .step { display: grid; grid-template-columns: 64px 1fr; gap: 24px; padding: 30px 0; border-top: 1px solid var(--line); }
  .step:last-child { border-bottom: 1px solid var(--line); }
  .step-num {
    font-family: var(--font-mono); font-size: 15px; color: var(--accent);
    width: 44px; height: 44px; border: 1px solid rgba(255,180,84,0.4); border-radius: 50%;
    display: grid; place-items: center; background: var(--accent-soft);
  }
  .step h3 { margin: 0 0 8px; font-size: 20px; font-weight: 600; letter-spacing: -0.01em; }
  .step p { margin: 0; color: var(--muted); max-width: 56ch; }
  .step code, .mono { font-family: var(--font-mono); color: var(--accent); font-size: 0.92em; }

  /* Formats — asymmetric cards */
  .formats { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; }
  .fmt {
    position: relative; overflow: hidden;
    background: linear-gradient(180deg, var(--panel-2), var(--panel));
    border: 1px solid var(--line-strong); border-radius: var(--radius);
    padding: 30px 28px; min-height: 280px;
    display: flex; flex-direction: column; justify-content: space-between; gap: 22px;
  }
  .fmt::after {
    content: ""; position: absolute; right: -70px; top: -70px; width: 220px; height: 220px;
    background: radial-gradient(circle, rgba(255,180,84,0.12), transparent 65%); pointer-events: none;
  }
  .fmt-code { font-family: var(--font-mono); font-size: clamp(28px, 3.4vw, 40px); font-weight: 600; letter-spacing: 0.1em; color: var(--accent); }
  .fmt h3 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
  .fmt .fmt-sub { color: var(--muted); font-size: 14px; margin: 0; }
  .fmt ul { margin: 14px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
  .fmt li { font-size: 14px; color: var(--muted); padding-left: 20px; position: relative; }
  .fmt li::before { content: "›"; position: absolute; left: 0; color: var(--accent); font-family: var(--font-mono); }

  /* Compatibility — brand chip wall */
  .compat-list {
    list-style: none; margin: 0 0 24px; padding: 0;
    display: flex; flex-wrap: wrap; gap: 10px;
  }
  .compat-list li {
    font-family: var(--font-mono); font-size: 13px; color: var(--muted);
    border: 1px solid var(--line-strong); border-radius: 999px;
    padding: 8px 15px; background: var(--panel);
    transition: border-color 0.18s ease, color 0.18s ease;
  }
  .compat-list li:hover { border-color: rgba(255,180,84,0.45); color: var(--text); }
  .compat-note {
    font-family: var(--font-mono); font-size: 12.5px; color: var(--faint);
    border-top: 1px dashed var(--line-strong); padding-top: 18px;
    max-width: 76ch; line-height: 1.65; margin: 0;
  }
  .compat-note .accent { color: var(--accent); }

  /* Provenance — full-width mono band */
  .provenance {
    border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    padding: 34px 0; text-align: center;
  }
  .provenance p { font-family: var(--font-mono); font-size: 13px; color: var(--faint); margin: 0; letter-spacing: 0.02em; }
  .provenance .accent { color: var(--accent); }

  /* ============ Footer ============ */
  footer { border-top: 1px solid var(--line); padding: 40px 0 52px; }
  .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
  .footer-inner p { margin: 0; color: var(--faint); font-size: 13.5px; max-width: 62ch; }
  .footer-mono { font-family: var(--font-mono); font-size: 12px; color: var(--faint); }
  .footer-mono a { color: var(--accent); text-decoration: none; }

  /* Reveal motion — hidden only once JS is confirmed active, so content is never
     gated behind a script that might fail to load. */
  .js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1); }
  .js .reveal.in { opacity: 1; transform: none; }

  @media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-mobile-strip { display: block; order: 0; }
    .hero-copy { order: 2; }
    .tool { order: 1; }
    .hero h1 { font-size: clamp(30px, 6.5vw, 42px); }
    .hero { min-height: 0; padding-top: 56px; }
    .formats { grid-template-columns: 1fr; }
    .nav-links a:not(.nav-cta) { display: none; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .js .reveal { opacity: 1; transform: none; }
  }

  /* ============ Embedded checkout modal ============ */
  .checkout-overlay {
    position: fixed; inset: 0; z-index: 100;
    display: flex; align-items: center; justify-content: center; padding: 24px;
    background: rgba(6, 9, 13, 0.78);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  }
  .checkout-overlay[hidden] { display: none; }
  .checkout-panel {
    width: 100%; max-width: 620px; background: var(--panel);
    border: 1px solid var(--line-strong); border-radius: 18px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.05), 0 30px 80px -30px rgba(0,0,0,.8);
    padding: 26px 28px;
  }
  .checkout-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
  .checkout-title { font-weight: 600; font-size: 17px; letter-spacing: -0.01em; }
  .checkout-title em { font-style: normal; color: var(--accent); }
  .checkout-close {
    background: transparent; border: 1px solid var(--line-strong); color: var(--muted);
    border-radius: 999px; padding: 6px 14px; cursor: pointer;
    font-family: var(--font-sans); font-size: 13px; font-weight: 500;
    transition: color .18s ease, border-color .18s ease;
  }
  .checkout-close:hover { color: var(--text); border-color: rgba(255,180,84,.5); }
  .checkout-sub { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
  #checkout-mount { min-height: 360px; }
  .checkout-loading { color: var(--muted); font-family: var(--font-mono); font-size: 13px; padding: 20px 0; }
  .checkout-error { color: var(--danger); font-size: 14px; margin: 12px 0 0; }