:root {
  color-scheme: dark;
  --bg: #0b1117;
  --panel: #121b24;
  --panel-2: #182431;
  --text: #e8eef5;
  --muted: #9eb0c2;
  --line: #274157;
  --accent: #57b4ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(87, 180, 255, 0.18), transparent 28%),
    linear-gradient(180deg, #091017, var(--bg));
  color: var(--text);
  line-height: 1.6;
}

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

.hero,
.card {
  background: linear-gradient(180deg, rgba(24, 36, 49, 0.96), rgba(18, 27, 36, 0.96));
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
}

.hero {
  padding: 28px;
  margin-bottom: 20px;
}

.card {
  padding: 24px 28px;
  margin-bottom: 16px;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(30px, 5vw, 44px);
  margin-bottom: 10px;
}

h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

p,
li {
  color: var(--text);
}

.muted,
small {
  color: var(--muted);
}

.links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.link-card {
  display: block;
  padding: 16px 18px;
  color: var(--text);
  text-decoration: none;
  background: rgba(87, 180, 255, 0.08);
  border: 1px solid rgba(87, 180, 255, 0.2);
  border-radius: 16px;
}

.link-card strong {
  display: block;
  margin-bottom: 4px;
}

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

ul,
ol {
  padding-left: 20px;
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.notice {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255, 194, 102, 0.12);
  border: 1px solid rgba(255, 194, 102, 0.25);
}

.footer {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}