:root {
  --bg: #0b1220;
  --surface: #111a2e;
  --surface-2: #16203a;
  --border: #233152;
  --text: #e7ecf5;
  --text-muted: #9fb0cc;
  --accent: #ff7a1a;
  --accent-soft: rgba(255, 122, 26, 0.12);
  --radius: 14px;
  --maxw: 820px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--text);
  font-size: 17px;
}

.brand .logo {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--accent);
  display: grid;
  place-items: center;
  color: #1a1206;
  font-weight: 800;
}

.nav a {
  color: var(--text-muted);
  margin-left: 18px;
  font-size: 14px;
  font-weight: 500;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}

@media (max-width: 600px) {
  .nav a {
    margin-left: 12px;
    font-size: 13px;
  }
  .brand span.full {
    display: none;
  }
}

/* Hero */
.hero {
  padding: 64px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: 38px;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
}

.hero p {
  color: var(--text-muted);
  font-size: 18px;
  max-width: 620px;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(255, 122, 26, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

/* Cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 40px 0 60px;
}

@media (max-width: 600px) {
  .cards {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 30px;
  }
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}

.card h3 {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.card .ico {
  font-size: 22px;
  margin-bottom: 10px;
}

/* Content pages */
.page {
  padding: 48px 0 80px;
}

.page h1 {
  font-size: 30px;
  margin: 0 0 6px;
  letter-spacing: -0.4px;
}

.page .updated {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 32px;
}

.page h2 {
  font-size: 20px;
  margin: 36px 0 10px;
  padding-top: 8px;
}

.page h3 {
  font-size: 16px;
  margin: 22px 0 6px;
  color: var(--text);
}

.page p,
.page li {
  color: var(--text-muted);
  font-size: 15.5px;
}

.page ul {
  padding-left: 22px;
}

.page li {
  margin-bottom: 6px;
}

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

.callout {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 20px 0;
}

.callout p {
  margin: 0;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14.5px;
}

table.data th,
table.data td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

table.data th {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 600;
}

table.data td {
  color: var(--text-muted);
}

.back {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--text-muted);
  font-size: 14px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.site-footer a {
  color: var(--text-muted);
  margin: 0 8px;
}