* { box-sizing: border-box; }
:root { font: 14px/1.5 system-ui, sans-serif; color: #223044; background: #f3f5f8; }
body { margin: 0; padding: 24px; }
a { color: #205da8; }
nav { display: flex; gap: 16px; margin-bottom: 16px; }
h1 { font-size: 23px; margin: 0 0 6px; }
h2 { font-size: 17px; margin-top: 0; }
.hint { color: #546174; margin: 0 0 18px; }
.panel { background: white; border: 1px solid #d6dce5; border-radius: 6px; padding: 18px; }
:focus-visible { outline: 2px solid #226ac6; outline-offset: 2px; }
.meta { color: #546174; }
@media (max-width: 640px) { body { padding: 12px; } }