:root {
  --color-bg: #fafaf9;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-primary: #7c3aed;
  --color-primary-hover: #6d28d9;
  --color-border: #e5e7eb;
  --color-card-bg: #ffffff;
  --color-card-hover: #f9fafb;
  --max-width: 780px;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f0f10;
    --color-text: #f5f5f5;
    --color-text-muted: #a1a1aa;
    --color-primary: #a78bfa;
    --color-primary-hover: #c4b5fd;
    --color-border: #27272a;
    --color-card-bg: #1a1a1c;
    --color-card-hover: #222226;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, Helvetica, Arial,
    sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

/* === Header === */
.site-header {
  text-align: center;
  margin-bottom: 48px;
}

.site-header h1 {
  margin: 0 0 8px;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.site-header .tagline {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* === Document header (PP/TOS pages) === */
.doc-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.doc-header .back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.doc-header .back-link:hover {
  color: var(--color-primary);
}

.doc-header .lang-toggle {
  display: inline-flex;
  gap: 0;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 8px;
}

.doc-header .lang-toggle button {
  background: transparent;
  border: none;
  padding: 6px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: background 0.15s ease, color 0.15s ease;
}

.doc-header .lang-toggle button.active {
  background: var(--color-primary);
  color: white;
}

.doc-header .lang-toggle button:not(.active):hover {
  background: var(--color-card-hover);
  color: var(--color-text);
}

/* === Landing cards === */
.legal-links {
  display: grid;
  gap: 16px;
  margin-bottom: 48px;
}

.legal-card {
  display: block;
  padding: 24px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  position: relative;
  transition:
    background 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

.legal-card:hover {
  background: var(--color-card-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.legal-card h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
}

.legal-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.legal-card .arrow {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-size: 1.5rem;
  opacity: 0.6;
}

.legal-card:hover .arrow {
  opacity: 1;
  transform: translateY(-50%) translateX(4px);
}

/* === Content (rendered markdown) === */
#content {
  font-size: 1rem;
  line-height: 1.7;
}

#content h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--color-text);
}

#content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 40px 0 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

#content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--color-text);
}

#content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--color-text);
}

#content p {
  margin: 12px 0;
}

#content a {
  color: var(--color-primary);
  text-decoration: underline;
}

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

#content blockquote {
  margin: 16px 0;
  padding: 12px 20px;
  border-left: 3px solid var(--color-primary);
  background: var(--color-card-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

#content ul,
#content ol {
  padding-left: 28px;
  margin: 12px 0;
}

#content li {
  margin: 6px 0;
}

#content code {
  font-family: 'SF Mono', Consolas, 'Courier New', monospace;
  font-size: 0.9em;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 1px 6px;
  border-radius: 4px;
}

#content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}

#content th,
#content td {
  padding: 10px 12px;
  text-align: left;
  border: 1px solid var(--color-border);
}

#content th {
  background: var(--color-card-bg);
  font-weight: 600;
}

#content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 32px 0;
}

#content strong {
  color: var(--color-text);
}

/* === Footer === */
.site-footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer .meta {
  font-size: 0.8rem;
  margin-top: 8px;
  opacity: 0.7;
}

/* === Loading state === */
.loading {
  text-align: center;
  padding: 48px 0;
  color: var(--color-text-muted);
}

/* === Mobile === */
@media (max-width: 640px) {
  .container {
    padding: 32px 16px;
  }

  .site-header h1 {
    font-size: 2rem;
  }

  #content h1 {
    font-size: 1.6rem;
  }

  #content h2 {
    font-size: 1.3rem;
  }

  #content table {
    font-size: 0.85rem;
  }

  #content th,
  #content td {
    padding: 8px;
  }
}