:root { --navy: #16213e; --banana: #ffe135; --brown: #5d4037; --text: #3e2b24; }
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; padding: 32px 16px;
  background: radial-gradient(120% 70% at 50% 0%, #26386a, var(--navy) 60%, #0f1629);
  font: 17px/1.6 system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
}
main { max-width: 720px; margin: 0 auto; background: var(--banana); border-radius: 24px; padding: 32px 28px; box-shadow: 0 20px 60px rgba(0, 0, 0, .4); }
h1 { margin: 0 0 4px; font-size: 2.2rem; color: var(--brown); font-weight: 900; }
h2 { margin: 1.6em 0 .3em; font-size: 1.2rem; color: var(--brown); }
.sub { margin: 0 0 1.2em; color: #795548; font-weight: 600; }
a { color: #1f6391; }
.icon { width: 96px; height: 96px; border-radius: 22px; display: block; margin-bottom: 16px; }
footer { margin-top: 2em; font-size: .9rem; color: #795548; }