:root { font-family: Inter, "Segoe UI", sans-serif; color: #17243b; background: #f4f6fa; font-synthesis: none; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { background: white; width: 100%; max-width: 420px; padding: 40px; border: 1px solid #e2e7ef; border-radius: 12px; box-shadow: 0 8px 36px #17243b0a; }
.brand-mark { width: 48px; height: 48px; display: grid; place-items: center; background: #17243b; color: white; font-size: 32px; font-weight: 700; border-radius: 10px; margin-bottom: 28px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .14em; color: #718096; }
h1 { font-size: 27px; letter-spacing: -.04em; margin: 8px 0; }
.intro { color: #718096; font-size: 14px; margin: 0 0 30px; }
label { display: block; font-weight: 600; font-size: 13px; margin: 20px 0 8px; }
input { width: 100%; border: 1px solid #cdd5df; border-radius: 6px; padding: 12px; font: inherit; font-size: 15px; }
input:focus { outline: 2px solid #9bb9ff; border-color: #416dde; }
button { margin-top: 24px; width: 100%; border: 0; border-radius: 6px; background: #285ed7; color: white; font: inherit; font-size: 14px; font-weight: 600; padding: 13px; cursor: pointer; }
button:disabled { opacity: .65; cursor: wait; }
#login-error { color: #ac2334; background: #fff1f2; padding: 12px; border-radius: 6px; font-size: 13px; }
@media (max-width: 440px) { .login-card { padding: 28px; } }