:root { color-scheme: light; --text: #1d1d1f; --muted: #5f6368; --line: #e5e5e5; --accent: #1a1a1a; --tool: #fdf6e3; }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--text); background: #fff; }
.top, .foot, main { max-width: 720px; margin: 0 auto; padding: 0 20px; }
.top { padding-top: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.brand { font-weight: 600; color: var(--text); text-decoration: none; }
h1 { font-size: 2rem; line-height: 1.25; margin: 36px 0 12px; }
h2 { font-size: 1.3rem; line-height: 1.35; margin: 36px 0 8px; }
.lede { font-size: 1.1rem; }
.checked { color: var(--muted); font-size: 0.9rem; }
ol, ul { padding-left: 1.3em; }
li { margin: 6px 0; }
a { color: #0b57d0; }
.tool { margin: 40px 0; padding: 4px 24px 20px; background: var(--tool); border-radius: 12px; }
.button { display: inline-block; padding: 10px 18px; border-radius: 8px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; }
.sources { font-size: 0.95rem; }
.foot { margin-top: 48px; padding-top: 20px; padding-bottom: 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
@media (max-width: 600px) { body { font-size: 16px; } h1 { font-size: 1.6rem; } .tool { padding: 2px 16px 16px; } }