:root { color-scheme: light dark; --fg: #1b1d21; --bg: #ffffff; --muted: #5d6470; --accent: #2f6fd6; --panel: #f2f4f7; }
@media (prefers-color-scheme: dark) { :root { --fg: #e6e8eb; --bg: #121417; --muted: #9aa1ab; --accent: #6ea0ff; --panel: #1d2026; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, sans-serif; }
main { max-width: 40rem; margin: 0 auto; padding: 2rem 16px; }
.muted { color: var(--muted); font-size: .9rem; }
.card { background: var(--panel); padding: 12px; border-radius: 8px; white-space: pre-wrap; word-break: break-all; font-size: .85rem; }
.button { display: inline-block; background: var(--accent); color: #fff; padding: .6rem 1rem; border-radius: 8px; text-decoration: none; }