:root { --teal: #0D6B62; --ink: #15181C; --muted: #545B63; --bg: #F6F7F5; --card: #FFFFFF; --line: #E3E5E8; }
@media (prefers-color-scheme: dark) {
  :root { --teal: #6FD3C4; --ink: #E6E8EA; --muted: #A9B0B6; --bg: #101314; --card: #191D1F; --line: #2A2F33; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 40px 20px 64px; }
a { color: var(--teal); }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px 24px; margin: 24px 0; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; font-weight: 700; font-size: 1.2rem; text-decoration: none; color: var(--ink); }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
ul { padding-left: 1.2em; }
li { margin: 6px 0; }
footer { margin-top: 48px; font-size: 0.9rem; color: var(--muted); }