:root { color-scheme: light dark; --accent: #7B1E3F; --text: #1a1a1a; --muted: #666; --bg: #fafafa; }
@media (prefers-color-scheme: dark) { :root { --text: #ececec; --muted: #999; --bg: #0f0f0f; } }
body { font-family: system-ui, -apple-system, "Inter", "Segoe UI", sans-serif; max-width: 720px; margin: 0 auto; padding: 96px 32px 64px; color: var(--text); background: var(--bg); line-height: 1.65; }
h1 { font-weight: 600; color: var(--accent); letter-spacing: -0.02em; margin-bottom: 32px; }
h2 { font-weight: 600; margin-top: 48px; letter-spacing: -0.01em; }
h3 { font-weight: 500; margin-top: 32px; color: var(--muted); }
a { color: var(--accent); text-underline-offset: 3px; }
p, li { color: var(--text); }
strong { font-weight: 600; }
hr { border: none; border-top: 1px solid var(--muted); opacity: 0.3; margin: 48px 0; }
code { background: rgba(123, 30, 63, 0.08); padding: 1px 4px; border-radius: 3px; font-size: 0.92em; }