:root {
  color-scheme: dark;
  --bg: #0f1117;
  --panel: #171b25;
  --panel-2: #202638;
  --text: #f7f7fb;
  --muted: #a3adbf;
  --line: #30384c;
  --accent: #ffce5c;
  --link: #9ff0ed;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

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

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 8vw, 68px);
  line-height: 1.04;
}

h2 {
  margin: 40px 0 12px;
  font-size: 26px;
}

h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

.lead {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.card {
  display: block;
  min-height: 116px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
}

.card span {
  display: block;
  font-size: 18px;
  font-weight: 800;
}

.card small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.doc {
  max-width: 820px;
}

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

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

.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 0;
  overflow-wrap: anywhere;
}

.doc th,
.doc td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.doc th {
  color: var(--text);
  background: var(--panel-2);
}

.notice {
  margin: 24px 0;
  padding: 16px;
  border: 1px solid rgba(255, 206, 92, 0.42);
  border-radius: 12px;
  background: rgba(255, 206, 92, 0.08);
  color: var(--text);
}

.back {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--muted);
  text-decoration: none;
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 24px, 920px);
    padding: 40px 0;
  }

  .doc th,
  .doc td {
    padding: 10px;
  }
}