:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #172033; background: #f5f7fb; }
* { box-sizing: border-box; }
body { margin: 0; }
header { background: #111827; color: white; padding: 28px 20px; }
header div, main, footer { width: min(860px, calc(100% - 40px)); margin: auto; }
header p { margin: 6px 0 0; color: #cbd5e1; }
main { background: white; margin-top: 28px; margin-bottom: 28px; padding: clamp(24px, 5vw, 52px); border-radius: 18px; box-shadow: 0 12px 34px rgba(15, 23, 42, .08); }
h1 { margin: 0; font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { margin-top: 2rem; font-size: 1.25rem; }
p, li { line-height: 1.65; }
a { color: #0b62d6; }
.meta { color: #64748b; }
nav { margin-top: 24px; display: flex; gap: 16px; flex-wrap: wrap; }
nav a { color: white; }
footer { padding: 0 0 32px; color: #64748b; }