:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #090b10;
  color: #f5f7fb;
  font-size: 16px;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top, #1b2230 0, #090b10 42rem); }
a { color: #60e8df; }
header, main, footer { width: min(760px, calc(100% - 40px)); margin: 0 auto; }
header { padding: 48px 0 28px; border-bottom: 1px solid #2a3040; }
header a { color: inherit; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 20px; }
nav a { color: #b7c0d5; }
main { padding: 42px 0 64px; }
h1 { font-size: clamp(2rem, 7vw, 3.6rem); letter-spacing: -0.045em; margin: 0; }
h2 { margin-top: 36px; font-size: 1.3rem; }
p, li { line-height: 1.72; color: #cbd2e1; }
.meta { color: #8f9ab2; }
.card { padding: 24px; border: 1px solid #30384a; border-radius: 18px; background: rgba(18, 22, 31, .82); }
footer { padding: 24px 0 40px; border-top: 1px solid #2a3040; color: #8f9ab2; }