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

:root {
  --bg-body: #0a0f1c;
  --bg-card: rgba(10,15,28,0.94);
  --bg-header: rgba(10,15,28,0.97);
  --bg-hover: rgba(255,255,255,0.05);
  --text-primary: #e2e8f0;
  --text-muted: rgba(255,255,255,0.5);
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --border: rgba(255,255,255,0.08);
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Inter', sans-serif;
}

html, body {
  background: var(--bg-body);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.7;
}

.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 56px; display: flex; align-items: center;
  padding: 0 20px; gap: 16px;
  background: var(--bg-header);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.back-link {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--text-muted);
  font-size: 14px; transition: color 0.15s;
}
.back-link:hover { color: var(--text-primary); }
.back-link svg { width: 20px; height: 20px; }

.header-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text-primary);
}
.header-logo svg { width: 28px; height: 28px; }
.header-logo span {
  font-family: var(--font-sans);
  font-weight: 600; font-size: 16px;
  letter-spacing: -0.02em;
}

.content {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 20px 40px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
}

@media (max-width: 600px) {
  .card { padding: 24px 16px; }
}

.effective-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--accent-light);
}

h3 {
  font-size: 16px;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 8px;
}

p { margin-bottom: 14px; font-size: 15px; color: var(--text-primary); }
ul { margin: 0 0 14px 24px; font-size: 15px; }
li { margin-bottom: 6px; }

a { color: var(--accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: rgba(255,255,255,0.06);
  padding: 2px 6px;
  border-radius: 4px;
}

.warning-box {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 20px 0;
  font-weight: 600;
  font-size: 15px;
  color: #fca5a5;
}

.footer {
  max-width: 800px;
  margin: 24px auto 40px;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  font-size: 13px;
  color: var(--text-muted);
}
.footer a { color: var(--text-muted); }
.footer a:hover { color: var(--text-primary); }
.footer .sep { opacity: 0.3; }