:root { color-scheme: light; font-family: system-ui, sans-serif; color: #172f47; background: #f5f6f8; }
* { box-sizing: border-box; }
body { margin: 0; }
a { color: #126899; }
main { max-width: 1100px; margin: 0 auto; padding: 32px 24px; }
main.auth { max-width: 620px; }
header, nav { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
nav { justify-content: flex-start; }
form, label { display: grid; gap: 8px; }
form { margin-top: 24px; gap: 20px; }
input, button { font: inherit; font-size: 16px; border: 1px solid #bac7d3; border-radius: 6px; padding: 10px 14px; }
button { cursor: pointer; background: white; color: #172f47; }
button:disabled { cursor: default; opacity: .55; }
input { width: 100%; background: white; color: #172f47; }
:focus-visible { outline: 3px solid #59a8d8; outline-offset: 2px; }
.error { color: #a42b24; background: #fff0ed; padding: 12px; }
.message { color: #145739; background: #e8f4ee; padding: 12px; }
footer { margin-top: 48px; border-top: 1px solid #bac7d3; color: #50657b; font-size: 14px; }
@media (max-width: 600px) { main { padding: 20px 16px; } }