:root {
  color-scheme: dark;
  --bg: #0b0a12;
  --panel: rgba(20, 17, 33, 0.88);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #f7f5ff;
  --muted: rgba(247, 245, 255, 0.72);
  --accent: #f472b6;
  --accent-2: #7c3aed;
  --line: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(124, 58, 237, 0.25), transparent 34%),
    radial-gradient(circle at bottom right, rgba(244, 114, 182, 0.18), transparent 26%),
    var(--bg);
  color: var(--text);
  font-family: Arial, sans-serif;
}

body {
  line-height: 1.6;
}

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

.hero {
  padding: 28px;
  border-radius: 28px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(31, 26, 46, 0.9), rgba(16, 13, 27, 0.86));
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 18px 0 8px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.05;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 700;
}

.nav a.primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border-color: transparent;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.card,
.section {
  border-radius: 24px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
}

.card {
  padding: 20px;
}

.card h2,
.section h2 {
  margin: 0 0 8px;
  font-size: 22px;
}

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

.doc {
  margin-top: 22px;
}

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

.doc-head h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 40px);
}

.doc-head p {
  margin: 0;
  color: var(--muted);
}

.section {
  padding: 22px;
  margin-bottom: 16px;
}

.section h2 {
  margin-bottom: 12px;
}

.section p {
  margin: 0 0 12px;
}

.section p:last-child {
  margin-bottom: 0;
}

.foot {
  margin-top: 24px;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

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

@media (max-width: 640px) {
  .wrap {
    width: min(100%, calc(100% - 20px));
    padding-top: 20px;
  }

  .hero,
  .card,
  .section,
  .doc-head {
    border-radius: 22px;
  }
}