:root {
  --primary: #4F46E5;
  --primary-light: #EEF2FF;
  --text: #1C1C1E;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --bg: #FFFFFF;
  --bg-soft: #F9FAFB;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #F2F2F7;
    --text-secondary: #98989F;
    --border: #2C2C2E;
    --bg: #000000;
    --bg-soft: #1C1C1E;
    --primary-light: #1E1B4B;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.site-header .logo {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.site-header .logo svg { width: 22px; height: 22px; }
.site-header .brand {
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
}
.site-header nav {
  margin-left: auto;
  display: flex;
  gap: 16px;
}
.site-header nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}
.site-header nav a:hover { color: var(--primary); }

/* Hero (landing only) */
.hero {
  text-align: center;
  padding: 64px 20px 48px;
}
.hero .logo-big {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  background: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.3);
}
.hero .logo-big svg { width: 56px; height: 56px; }
.hero h1 {
  font-size: 40px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.hero .tagline {
  font-size: 18px;
  color: var(--text-secondary);
  margin: 0 0 32px;
}
.hero .links {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .links a {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.15s ease;
}
.hero .links a.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.hero .links a:hover { border-color: var(--primary); color: var(--primary); }
.hero .links a.primary:hover { opacity: 0.9; color: #fff; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 48px;
}
.feature {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-soft);
}
.feature h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
}
.feature p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

/* Legal pages */
.legal h1 {
  font-size: 32px;
  font-weight: 800;
  margin: 16px 0 8px;
  letter-spacing: -0.01em;
}
.legal .updated {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0 0 32px;
  font-style: italic;
}
.legal h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 12px;
}
.legal p { margin: 0 0 14px; }
.legal ul { padding-left: 22px; margin: 0 0 14px; }
.legal li { margin-bottom: 6px; }
.legal a { color: var(--primary); }
.legal code {
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
  border: 1px solid var(--border);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
}
.site-footer a {
  color: var(--text-secondary);
  text-decoration: none;
  margin: 0 8px;
}
.site-footer a:hover { color: var(--primary); }