/* ── Reset & Base ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: #e0e0e0;
  background: #0d1117;
  line-height: 1.6;
}

a { color: #58a6ff; text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  background: #1c2128;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Cascadia Code', 'Fira Code', monospace;
  font-size: 0.9em;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #21262d;
  z-index: 100;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 18px;
  font-weight: 700;
  color: #e0e0e0;
}
.logo span { color: #58a6ff; }
.logo:hover { text-decoration: none; }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-links a { color: #8b949e; font-size: 14px; }
.nav-links a:hover { color: #e0e0e0; text-decoration: none; }
.btn-playground, .btn-github {
  padding: 4px 12px !important;
  border-radius: 6px;
  font-weight: 500;
}
.btn-playground {
  background: #238636 !important;
  color: #fff !important;
}
.btn-playground:hover { background: #2ea043 !important; }
.btn-github {
  background: #21262d !important;
  color: #e0e0e0 !important;
  border: 1px solid #30363d;
}

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
  max-width: 800px;
  margin: 0 auto;
}
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  background: linear-gradient(135deg, #58a6ff, #3fb950);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.tagline {
  font-size: 20px;
  color: #c9d1d9;
  margin-bottom: 8px;
}
.sub {
  font-size: 15px;
  color: #8b949e;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
}
.btn {
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  display: inline-block;
}
.btn.primary {
  background: #238636;
  color: #fff;
}
.btn.primary:hover { background: #2ea043; text-decoration: none; }
.btn.secondary {
  background: #21262d;
  color: #c9d1d9;
  border: 1px solid #30363d;
}
.btn.secondary:hover { background: #30363d; text-decoration: none; }
.install-cmd {
  display: inline-block;
  background: #161b22;
  border: 1px solid #30363d;
  padding: 10px 24px;
  border-radius: 8px;
  font-family: 'Cascadia Code', monospace;
  font-size: 14px;
  color: #8b949e;
}

/* ── Sections ── */
.section {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px;
}
.section h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 1px solid #21262d;
}
.section h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 12px;
  color: #c9d1d9;
}

/* ── Feature Grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}
.feature-card {
  background: #161b22;
  border: 1px solid #21262d;
  border-radius: 8px;
  padding: 20px;
}
.feature-card h3 {
  font-size: 16px;
  margin: 0 0 8px;
}
.feature-card p {
  font-size: 14px;
  color: #8b949e;
  margin: 0;
}

/* ── Code Blocks ── */
.code-block {
  background: #161b22;
  border: 1px solid #21262d;
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-family: 'Cascadia Code', 'Fira Code', monospace;
  font-size: 13px;
  line-height: 1.5;
  color: #c9d1d9;
  margin-bottom: 16px;
}

/* ── API Tables ── */
.api-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 14px;
}
.api-table th {
  text-align: left;
  padding: 8px 12px;
  background: #161b22;
  border-bottom: 2px solid #30363d;
  color: #8b949e;
  font-weight: 600;
}
.api-table td {
  padding: 8px 12px;
  border-bottom: 1px solid #21262d;
}
.api-table tr:hover td {
  background: #161b22;
}

/* ── Footer ── */
.footer {
  text-align: center;
  padding: 32px 24px;
  color: #484f58;
  font-size: 13px;
  border-top: 1px solid #21262d;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero h1 { font-size: 32px; }
  .tagline { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .nav-links { gap: 12px; }
  .feature-grid { grid-template-columns: 1fr; }
}