:root {
  --bg: linear-gradient(135deg, #0a1a2f 0%, #0f2439 50%, #122c44 100%);
  --panel: #0f1c2d;
  --panel-strong: #0a1625;
  --border: #1f3550;
  --accent: #3dd598;
  --accent-strong: #27b67f;
  --muted: #9fb3cc;
  --text: #e7f0ff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Space Grotesk", "Noto Sans SC", "Segoe UI", "Helvetica Neue", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

.shell {
  width: min(1160px, 92vw);
  margin: 0 auto 64px auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(10, 19, 34, 0.8);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  width: min(1160px, 92vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand span {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(61, 213, 152, 0.12);
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: 14px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 600;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.nav a.active {
  background: rgba(61, 213, 152, 0.16);
  color: var(--text);
  border: 1px solid rgba(61, 213, 152, 0.45);
}

.hero {
  margin-top: 42px;
  padding: 32px;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(21, 37, 58, 0.9), rgba(12, 25, 41, 0.9));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 8px 0 10px 0;
  font-size: clamp(28px, 4vw, 36px);
  letter-spacing: 0.2px;
}

.hero .lead {
  color: var(--muted);
  margin-bottom: 18px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-weight: 700;
  color: var(--accent);
  font-size: 12px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.btn {
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #041019;
  border: none;
  box-shadow: 0 10px 30px rgba(61, 213, 152, 0.3);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.05);
}

.btn:hover {
  transform: translateY(-1px);
}

.section {
  margin-top: 36px;
}

.section h2 {
  margin: 0 0 12px 0;
  letter-spacing: 0.4px;
}

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

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

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.25);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 18px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.4px;
}

.list {
  padding-left: 18px;
  margin: 8px 0;
  color: var(--muted);
}

.list li {
  margin: 6px 0;
}

pre {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  overflow-x: auto;
  color: #e6f3ff;
  font-family: "Fira Code", "Cascadia Code", monospace;
  font-size: 13px;
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  font-family: "Fira Code", "Cascadia Code", monospace;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

th, td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

th {
  text-align: left;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.2px;
}

.label {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(61, 213, 152, 0.14);
  color: var(--accent);
  border-radius: 8px;
  font-size: 12px;
  letter-spacing: 0.3px;
}

.footnote {
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}

@media (max-width: 720px) {
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .hero {
    padding: 22px;
  }
}