:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #173249; background: #16242f; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 32px 16px; }
.auth-card { width: 100%; max-width: 480px; background: #fff; border-radius: 16px; padding: 36px; box-shadow: 0 20px 60px #0005; }
.brand { display: block; background: #16242f; border-radius: 8px; padding: 16px 18px; margin-bottom: 28px; }
.brand img { display: block; max-width: 100%; width: 304px; height: auto; margin: auto; }
h1 { font-size: 1.75rem; line-height: 1.2; margin: 0 0 18px; }
p { line-height: 1.6; margin: 0 0 20px; }
label { display: block; font-weight: 650; margin: 18px 0 8px; }
input { display: block; width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid #6e8191; border-radius: 6px; font: inherit; }
button, .button { display: block; width: 100%; margin: 24px 0 12px; border: 0; border-radius: 6px; padding: 14px; background: #166a42; color: #fff; font: inherit; font-weight: 700; text-decoration: none; text-align: center; cursor: pointer; }
button:hover, .button:hover { background: #105132; }
a { color: #145b8b; text-underline-offset: 3px; }
.back { display: block; text-align: center; margin-top: 24px; }
:focus-visible { outline: 3px solid #b97800; outline-offset: 3px; }
.error { background: #fff0ed; color: #8b2513; border-left: 4px solid #a52e1b; padding: 12px; }
footer { margin-top: 30px; padding-top: 18px; border-top: 1px solid #dbe2e8; text-align: center; font-size: .8rem; color: #526778; }
@media (max-width: 480px) { body { padding: 16px; } .auth-card { padding: 24px; } h1 { font-size: 1.5rem; } }