:root {
  --bg: #0b0d12;
  --bg-elevated: rgba(255, 255, 255, 0.05);
  --bg-elevated-strong: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --text-muted: rgba(255, 255, 255, 0.62);
  --line: rgba(255, 255, 255, 0.1);
  --accent: #ddc190;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(221, 193, 144, 0.12), transparent 34%),
    linear-gradient(180deg, #10131a 0%, #07090d 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", sans-serif;
}

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

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(920px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.hero, .panel {
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 24px;
  margin-bottom: 16px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1.1;
}

.hero p {
  margin: 12px 0 0;
  color: var(--text-muted);
  line-height: 1.7;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  font-weight: 600;
}

.panel {
  padding: 24px;
}

.document h1,
.document h2,
.document h3 {
  margin: 0;
  color: #fff;
}

.document h1 {
  font-size: 28px;
}

.document h2 {
  font-size: 20px;
  margin-top: 8px;
}

.document h3 {
  font-size: 16px;
  margin-top: 4px;
}

.document p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.9;
  font-size: 15px;
}

.document ul {
  margin: 0;
  padding-left: 22px;
  color: rgba(255, 255, 255, 0.88);
}

.document li {
  margin: 0;
  line-height: 1.8;
  padding-left: 2px;
}

.document hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2px 0;
}

.stack {
  display: grid;
  gap: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  display: block;
  padding: 18px;
  border-radius: 18px;
  background: var(--bg-elevated-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 12px;
}