:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666;
  --link: #2563eb;
  --card: #f8fafc;
  --border: #e2e8f0;
  --accent: #3b82f6;
  --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --fg: #f1f5f9;
    --muted: #94a3b8;
    --link: #60a5fa;
    --card: #1e293b;
    --border: #334155;
    --accent: #60a5fa;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.brand {
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.5px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand small {
  display: block;
  font-weight: 500;
  color: var(--muted);
  font-size: 14px;
  margin-top: 2px;
  -webkit-text-fill-color: var(--muted);
}

.langs {
  display: flex;
  gap: 16px;
  align-items: center;
}

.langs a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.langs a:hover {
  background: var(--card);
  border-color: var(--border);
}

/* Typography */
h1 {
  font-size: 36px;
  line-height: 1.2;
  margin: 0 0 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 24px;
  margin: 40px 0 16px;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
}

h3 {
  font-size: 18px;
  margin: 24px 0 12px;
  font-weight: 600;
  color: var(--accent);
}

p, li {
  color: var(--fg);
  margin-bottom: 12px;
}

.meta {
  color: var(--muted);
  font-size: 16px;
  margin: 0 0 32px;
  padding: 16px;
  background: var(--card);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px -8px rgba(0, 0, 0, 0.15);
}

/* Links */
a {
  color: var(--link);
  text-decoration: none;
  transition: all 0.2s ease;
  font-weight: 500;
}

a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* Code */
code, kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
  background: var(--card);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

/* Footer */
footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

/* Table of Contents */
nav.toc {
  margin: 32px 0;
  padding: 24px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

nav.toc a {
  display: inline-flex;
  align-items: center;
  margin: 6px 12px 6px 0;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--fg);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

nav.toc a:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-weight: 600;
  background: var(--card);
  margin-right: 8px;
}

/* Lists */
ul {
  padding-left: 24px;
  margin: 16px 0;
}

li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Notes */
.note {
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  background: var(--card);
  border-radius: var(--radius);
  margin: 20px 0;
  box-shadow: var(--shadow);
}

/* Sections */
section {
  margin: 48px 0;
  padding: 0;
}

section:first-of-type {
  margin-top: 32px;
}

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

.legal-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.legal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.legal-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.2);
  text-decoration: none;
  border-color: var(--accent);
}

.legal-card h3 {
  font-size: 20px;
  margin: 0 0 12px;
  color: var(--fg);
}

.legal-card p {
  color: var(--muted);
  margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 24px 16px;
  }
  
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  h1 {
    font-size: 28px;
  }
  
  h2 {
    font-size: 22px;
  }
  
  .legal-links {
    grid-template-columns: 1fr;
  }
  
  nav.toc a {
    font-size: 13px;
    padding: 6px 12px;
    margin: 4px 8px 4px 0;
  }
}

@media (max-width: 640px) {
  .langs {
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .langs a {
    font-size: 14px;
    padding: 6px 12px;
  }
}