:root { --fg: #1d1d1f; --muted: #5f6368; --bg: #faf7f0; --card: #ffffff; --accent: #ff8c00; --line: #e4ded2; }
@media (prefers-color-scheme: dark) {
  :root { --fg: #f2f2f2; --muted: #b0b0b0; --bg: #17161a; --card: #222126; --accent: #ffa64d; --line: #34323a; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.logo { width: 44px; height: 44px; border-radius: 12px; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 20px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0; }
h2 { font-size: 21px; margin-top: 32px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; margin: 18px 0; }
.muted { color: var(--muted); font-size: 15px; }
.yt { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
.yt svg { width: 34px; height: 24px; }
a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 3px; }
nav { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--line); }