:root {
  --bg: #0b0f1a;
  --bg-elev: #131a2b;
  --card: rgba(30, 41, 59, 0.45);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.2);
  --cyan: #22d3ee;
  --blue: #3b82f6;
  --pink: #ec4899;
  --amber: #f59e0b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", sans-serif;
  background: radial-gradient(circle at 20% -10%, #1f2a44 0%, var(--bg) 55%);
  color: var(--text);
}

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

a:hover {
  text-decoration: underline;
}

.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
}

.sidebar {
  position: sticky;
  top: 16px;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  padding: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.brand img {
  width: 30px;
  height: 30px;
}

.brand strong {
  font-size: 20px;
}

.nav {
  display: grid;
  gap: 8px;
}

.nav a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text);
}

.nav a.active,
.nav a:hover {
  background: rgba(34, 211, 238, 0.12);
  text-decoration: none;
}

.content {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  padding: 28px;
}

h1 {
  margin-top: 0;
  font-size: 34px;
}

h2 {
  margin-top: 30px;
  font-size: 24px;
}

h3 {
  margin-top: 24px;
  font-size: 19px;
}

p {
  color: var(--muted);
  line-height: 1.7;
}

ul,
ol {
  color: var(--muted);
  line-height: 1.7;
  padding-left: 20px;
}

code {
  background: rgba(2, 6, 23, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 6px;
  padding: 2px 6px;
  color: #dbeafe;
}

pre {
  background: #05070a;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 12px;
  padding: 14px;
  overflow: auto;
}

pre code {
  border: 0;
  background: transparent;
  padding: 0;
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.badge.cyan {
  background: rgba(34, 211, 238, 0.15);
  color: var(--cyan);
}

.badge.pink {
  background: rgba(236, 72, 153, 0.15);
  color: var(--pink);
}

.badge.amber {
  background: rgba(245, 158, 11, 0.16);
  color: #fbbf24;
}

.callout {
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.7);
  border-radius: 12px;
  padding: 14px;
}

.table-wrap {
  overflow: auto;
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 10px;
  vertical-align: top;
}

th {
  color: #cbd5e1;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-links {
  margin-top: 28px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 940px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}