:root {
  color-scheme: dark;
  --bg: #07110f;
  --surface: #0e1b18;
  --surface-strong: #142520;
  --text: #f2f0e7;
  --muted: #b8c4bb;
  --line: rgba(242, 240, 231, 0.13);
  --primary: #7fd7c4;
  --secondary: #d8be78;
  --danger: #ef8c78;
  --max-width: 920px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 18% 0%, rgba(127, 215, 196, 0.13), transparent 34%),
    linear-gradient(180deg, #07110f 0%, #0b1613 46%, #07110f 100%);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-shell {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 18px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 760;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(127, 215, 196, 0.4);
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(127, 215, 196, 0.23), rgba(216, 190, 120, 0.1));
  color: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  font-size: 0.94rem;
}

.hero {
  padding: 72px 0 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.35rem, 6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lede {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(242, 240, 231, 0.06);
  color: var(--text);
  font-weight: 720;
}

.button.primary {
  border-color: rgba(127, 215, 196, 0.5);
  background: rgba(127, 215, 196, 0.18);
  color: var(--text);
}

.sections {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 20px 0 58px;
}

.section-link {
  min-height: 180px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(14, 27, 24, 0.78);
  color: var(--text);
}

.section-link strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.section-link span {
  color: var(--muted);
}

.doc {
  padding: 54px 0 70px;
}

.doc h1 {
  max-width: 820px;
  margin-bottom: 12px;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
}

.updated {
  margin: 0 0 28px;
  color: var(--secondary);
  font-weight: 680;
}

.notice {
  margin: 28px 0;
  padding: 18px 20px;
  border: 1px solid rgba(216, 190, 120, 0.35);
  border-radius: 8px;
  background: rgba(216, 190, 120, 0.08);
  color: var(--text);
}

.content {
  max-width: 780px;
}

.content h2 {
  margin: 42px 0 10px;
  font-size: 1.4rem;
  letter-spacing: 0;
}

.content p,
.content li {
  color: var(--muted);
}

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

.content strong {
  color: var(--text);
}

.site-footer {
  padding: 30px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 52px;
  }

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