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

:root {
  --color-primary: #2563eb;
  --color-text: #111827;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-bg: #ffffff;
  --color-prose: #374151;
}

[data-theme="dark"] {
  --color-primary: #60a5fa;
  --color-text: #f9fafb;
  --color-muted: #9ca3af;
  --color-border: #374151;
  --color-bg: #111827;
  --color-prose: #d1d5db;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary: #60a5fa;
    --color-text: #f9fafb;
    --color-muted: #9ca3af;
    --color-border: #374151;
    --color-bg: #111827;
    --color-prose: #d1d5db;
  }
}

html {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s, color 0.2s;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.15s;
}

nav a:hover {
  color: var(--color-primary);
}

/* Dark mode toggle */
#theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  padding: 4px 8px;
  font-size: 1rem;
  line-height: 1;
  color: var(--color-muted);
  transition: border-color 0.15s, color 0.15s;
}

#theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-muted);
}

/* Main content */
main {
  padding: 48px 24px 64px;
}

/* Index page */
.hero {
  text-align: center;
  padding: 64px 0 48px;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.hero p {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.pill-links {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.pill-links a {
  display: inline-block;
  padding: 12px 28px;
  border: 1.5px solid var(--color-primary);
  border-radius: 100px;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.pill-links a:hover {
  background: var(--color-primary);
  color: #fff;
}

/* Prose (legal pages) */
.prose h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.prose .updated {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 36px;
}

.prose h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 10px;
}

.prose p {
  line-height: 1.75;
  color: var(--color-prose);
  margin-bottom: 14px;
}

.prose ul {
  padding-left: 20px;
  margin-bottom: 14px;
}

.prose ul li {
  line-height: 1.75;
  color: var(--color-prose);
  margin-bottom: 6px;
}

/* Footer */
footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
}

footer p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.5rem; }
  nav { gap: 16px; }
}