:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: linear-gradient(145deg, #eef3ff, #f8fafc 52%, #eefbf5); color: #172033; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(430px, 100%); background: rgba(255,255,255,.96); border: 1px solid #dbe3f0; border-radius: 24px; padding: 34px; box-shadow: 0 22px 70px rgba(38,55,91,.14); }
.login-logo { width: 58px; height: 58px; border-radius: 18px; display: grid; place-items: center; margin-bottom: 18px; background: #315fdb; color: #fff; font-weight: 900; letter-spacing: .04em; }
h1 { margin: 0; font-size: clamp(25px, 5vw, 34px); }
.subtitle { margin: 9px 0 26px; color: #68748a; }
label { display: grid; gap: 8px; margin-top: 17px; font-weight: 700; }
input { width: 100%; border: 1px solid #cbd5e1; border-radius: 12px; padding: 13px 14px; font: inherit; outline: none; background: #fff; }
input:focus { border-color: #4f75df; box-shadow: 0 0 0 4px rgba(79,117,223,.13); }
button { width: 100%; margin-top: 24px; border: 0; border-radius: 12px; padding: 13px 16px; font: inherit; font-weight: 800; color: #fff; background: #315fdb; cursor: pointer; }
button:hover { background: #244fc2; }
button:disabled { opacity: .65; cursor: wait; }
.status { min-height: 24px; margin-top: 15px; font-size: 14px; line-height: 1.4; }
.status.bad { color: #b42318; }
.status.good { color: #137a43; }
@media (max-width: 480px) { .login-card { padding: 26px 20px; border-radius: 20px; } }