:root {
  color-scheme: light dark;
  --bg: #f7f8f4;
  --fg: #172026;
  --muted: #5e6b72;
  --line: #d9ded8;
  --panel: #ffffff;
  --accent: #126c74;
  --accent-strong: #0c4e56;
  --warn-bg: #fff7d7;
  --warn-line: #ddc86c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
}

a { color: var(--accent); }
a:hover { color: var(--accent-strong); }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.78);
}

.wrap {
  width: min(100% - 32px, 1040px);
  margin: 0 auto;
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--fg);
  text-decoration: none;
  font-weight: 700;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 15px;
}

.links a {
  color: var(--fg);
  text-decoration: none;
}

.links a:hover { color: var(--accent); }

.hero {
  padding: 72px 0 44px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.95;
  letter-spacing: 0;
}

.lede {
  margin: 22px 0 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.5;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
}

.button.primary {
  background: var(--accent);
  color: white;
}

.button.secondary {
  color: var(--accent);
  background: transparent;
}

.device {
  border: 1px solid var(--line);
  background: #151a1d;
  color: #eef5f2;
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 16px 42px rgba(23,32,38,0.16);
}

.device-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #8da19d;
  font-size: 13px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #69d2c6;
}

.terminal {
  margin-top: 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  line-height: 1.7;
}

.terminal .dim { color: #8da19d; }

.band {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel);
}

.card h2,
.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p,
.content p,
.content li {
  color: var(--muted);
  line-height: 1.6;
}

.content {
  max-width: 820px;
  padding: 52px 0;
}

.content h1 {
  font-size: clamp(36px, 5vw, 56px);
}

.content h2 {
  margin: 36px 0 10px;
  font-size: 24px;
}

.content ul {
  padding-left: 22px;
}

.notice {
  margin: 24px 0;
  border: 1px solid var(--warn-line);
  background: var(--warn-bg);
  border-radius: 8px;
  padding: 16px;
}

.notice p { margin: 0; }

.footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer a { color: var(--muted); }

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
    gap: 14px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 48px;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101315;
    --fg: #edf2ef;
    --muted: #a8b5b0;
    --line: #2b3334;
    --panel: #171c1e;
    --accent: #6bd3d0;
    --accent-strong: #9fe9e5;
    --warn-bg: #2b2614;
    --warn-line: #716321;
  }

  .site-header {
    background: rgba(16,19,21,0.86);
  }

  .button.primary {
    color: #092426;
  }

  .button.secondary {
    color: var(--accent);
  }
}