:root {
    color-scheme: dark;
    --bg: #070b0e;
    --surface: #10171c;
    --line: #22313a;
    --text: #e6eef2;
    --muted: #98aab3;
    --teal: #2fd3c4;
    --teal-hover: #5be3d6;
    --on-teal: #04201e;
    --error: #ff8d7a;
    --placeholder: #70838c;
  }
  :root[data-theme="light"] {
    color-scheme: light;
    --bg: #f6f9fa;
    --surface: #ffffff;
    --line: #d3dde2;
    --text: #0f1a1f;
    --muted: #4b5f69;
    --teal: #0b7f76;
    --teal-hover: #09665f;
    --on-teal: #ffffff;
    --error: #b3261e;
    --placeholder: #6b7d86;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 400 1.125rem/1.6 'Barlow', system-ui, -apple-system, 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  a { color: var(--teal); }
  .wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
  .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

  /* Header */
  .top { background: var(--bg); border-bottom: 1px solid var(--line); }
  .bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
  .brand {
    font: 700 1.15rem/1 'Chakra Petch', 'Barlow', sans-serif;
    font-style: italic;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text);
    text-decoration: none;
  }
  .brand b { color: var(--teal); font-weight: 700; }
  .nav { display: flex; gap: 22px; }
  .nav a { font-weight: 600; font-size: 1rem; color: var(--muted); text-decoration: none; padding: 8px 0; }
  .nav a:hover { color: var(--text); }

  /* Banner */
  .banner { background: #000; border-bottom: 1px solid var(--line); line-height: 0; }
  .banner img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 1000px;
    margin: 0 auto;
  }

  /* Hero */
  .hero { max-width: 720px; margin: 0 auto; padding: 64px 0 72px; }
  .hero h1 {
    margin: 0 0 18px;
    font: 700 clamp(2rem, 4.6vw, 3.1rem)/1.1 'Chakra Petch', 'Barlow', sans-serif;
    font-style: italic;
    letter-spacing: -0.005em;
    color: var(--text);
  }
  .lede { margin: 0 0 30px; max-width: 34em; color: var(--muted); }

  /* Sign-up form */
  .role { border: 0; margin: 0 0 14px; padding: 0; display: flex; gap: 8px; flex-wrap: wrap; }
  .role label { position: relative; cursor: pointer; }
  .role input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
  .role span {
    display: inline-block;
    padding: 8px 18px;
    border: 2px solid var(--line);
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
  }
  .role input:checked + span { background: var(--teal); border-color: var(--teal); color: var(--on-teal); }
  .role input:focus-visible + span { outline: 3px solid var(--teal); outline-offset: 3px; }

  .row { display: flex; gap: 10px; flex-wrap: wrap; }
  .row input[type=email] {
    flex: 1 1 260px;
    min-width: 0;
    padding: 14px 16px;
    font: inherit;
    color: var(--text);
    background: var(--surface);
    border: 2px solid var(--line);
    border-radius: 6px;
  }
  .row input[type=email]::placeholder { color: var(--placeholder); }
  .row input[type=email]:focus { border-color: var(--teal); }
  .btn {
    font: 700 1.05rem/1 'Chakra Petch', 'Barlow', sans-serif;
    letter-spacing: 0.02em;
    padding: 15px 24px;
    color: var(--on-teal);
    background: var(--teal);
    border: 2px solid var(--teal);
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.12s, transform 0.08s;
  }
  .btn:hover { background: var(--teal-hover); border-color: var(--teal-hover); }
  .btn:active { transform: translateY(1px); }
  .btn:disabled { opacity: 0.6; cursor: progress; }
  .btn:focus-visible, .row input:focus-visible { outline: 3px solid var(--text); outline-offset: 3px; }

  .note { margin: 12px 0 0; font-size: 0.95rem; color: var(--muted); }
  .status { min-height: 1.6em; margin: 10px 0 0; font-weight: 600; }
  .status.error { color: var(--error); }
  .fine { font-size: 0.85rem; font-weight: 400; color: var(--muted); min-height: 0; margin-top: 4px; }
  .done { margin: 0; padding: 20px 22px; border: 2px solid var(--teal); border-radius: 6px; background: var(--surface); max-width: 32em; }
  .done strong { display: block; font: 700 1.35rem/1.2 'Chakra Petch', 'Barlow', sans-serif; font-style: italic; color: var(--teal); margin-bottom: 6px; }
  .done p { margin: 0; }
  .done:focus { outline: none; }
  .hp { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }

  /* What to expect */
  .expect { border-top: 1px solid var(--line); padding: 56px 0 64px; }
  .expect-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
  .expect-grid > div { padding: 0 32px; border-left: 1px solid var(--line); }
  .expect-grid > div:first-child { padding-left: 0; border-left: 0; }
  .expect-grid > div:last-child { padding-right: 0; }
  .expect h2 { margin: 0 0 10px; font: 700 1.3rem/1.2 'Chakra Petch', 'Barlow', sans-serif; font-style: italic; color: var(--text); }
  .expect p { margin: 0; color: var(--muted); }

  /* Maker band */
  .makers {
    background: var(--surface);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 52px 0;
  }
  .makers .wrap { display: flex; gap: 32px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
  .makers h2 { margin: 0 0 8px; font: 700 clamp(1.5rem, 3vw, 2rem)/1.15 'Chakra Petch', 'Barlow', sans-serif; font-style: italic; }
  .makers p { margin: 0; max-width: 34em; color: var(--muted); }

  footer { padding: 32px 0 40px; font-size: 0.95rem; color: var(--muted); }

  @media (max-width: 860px) {
    .hero { padding: 40px 0 52px; }
    .expect-grid { grid-template-columns: 1fr; gap: 28px; }
    .expect-grid > div, .expect-grid > div:first-child, .expect-grid > div:last-child {
      padding: 0 0 0 20px; border-left: 3px solid var(--teal);
    }
  }
  @media (max-width: 480px) {
    .nav { gap: 16px; }
    .brand { font-size: 1rem; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .btn { transition: none; }
  }

  .privacy { max-width: 640px; margin: 48px auto; padding: 0 16px; }
  .privacy h1 { font: 700 1.8rem/1.2 'Chakra Petch', 'Barlow', sans-serif; font-style: italic; }

  /* Theme switch */
  .tools { display: flex; align-items: center; gap: 22px; }
  .theme-toggle {
    font: 600 0.9rem/1 'Barlow', system-ui, sans-serif;
    color: var(--text);
    background: transparent;
    border: 2px solid var(--line);
    border-radius: 999px;
    padding: 7px 14px;
    cursor: pointer;
  }
  .theme-toggle:hover { border-color: var(--teal); }
  .theme-toggle:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
  @media (max-width: 480px) { .tools { gap: 12px; } .theme-toggle { padding: 6px 10px; } }
  .bar { flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
  .brand { display: inline-flex; line-height: 0; }
  .brand img { display: block; height: 30px; width: auto; }
  @media (max-width: 480px) { .brand img { height: 24px; } }
  /* Light mode: black outline so the logo stands out */
  :root[data-theme="light"] .brand img { filter: drop-shadow(1px 0 0 #000) drop-shadow(-1px 0 0 #000) drop-shadow(0 1px 0 #000) drop-shadow(0 -1px 0 #000); }