:root { color-scheme: dark; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #f2f2e9; background: #0c1825; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 32px 16px; background: radial-gradient(ellipse at top, #193528, #0c1825 65%); }
.auth-card { width: 100%; max-width: 460px; padding: 36px; background: #142130; border: 1px solid #354856; border-radius: 20px; box-shadow: 0 20px 70px #0004; }
.brand { display: inline-block; font-weight: 800; letter-spacing: .12em; font-size: .82rem; text-decoration: none; color: #f2f2e9; }
.eyebrow { margin: 32px 0 10px; color: #a7d7b4; letter-spacing: .16em; font-size: .72rem; font-weight: 700; }
h1 { margin: 0 0 12px; font-size: clamp(1.8rem, 6vw, 2.2rem); line-height: 1.15; letter-spacing: -.035em; }
.intro { color: #bcc8cf; line-height: 1.6; margin-bottom: 28px; }
label { display: block; font-weight: 600; font-size: .9rem; margin: 18px 0 8px; }
input { width: 100%; border: 1px solid #657781; border-radius: 8px; padding: 12px; font: inherit; background: #0d1924; color: #fff; }
button { width: 100%; border: 0; border-radius: 8px; padding: 14px; margin-top: 24px; background: #c6ef8a; color: #172215; font: inherit; font-weight: 750; cursor: pointer; }
button:disabled { background: #869779; color: #152013; cursor: default; }
a { color: #c6ef8a; text-underline-offset: 4px; }
:focus-visible { outline: 3px solid #ebd179; outline-offset: 4px; }
.hint, .footnote, .profile-message { font-size: .85rem; line-height: 1.55; color: #bcc8cf; }
.hint { margin: 8px 0 12px; }
.footnote { margin: 24px 0 0; }
.message { line-height: 1.6; color: #f4e7ba; overflow-wrap: anywhere; }
.message:empty, .profile-message:empty { display: none; }
noscript { display: block; margin-top: 16px; line-height: 1.5; }
@media (max-width: 400px) { .auth-card { padding: 24px; } }