:root { font-family: Arial, "Segoe UI", sans-serif; color: #1d3440; background: #f4f2ed; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; }
.loading-screen, .login-screen { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.loading-screen { color: #64767a; }
.login-card { width: min(440px, 100%); background: #fff; border: 1px solid #dadfdc; }
.brand { display: flex; align-items: center; gap: 15px; padding: 22px 26px; background: #1d3440; color: #fff; font-size: 14px; font-weight: 700; }
.brand strong { font: 700 29px Georgia, serif; letter-spacing: -.08em; }
.brand strong span { color: #e6a17c; }
.brand small { display: block; margin-top: 3px; color: #bbcbd0; font-size: 11px; font-weight: 400; }
.card-content { padding: 36px 32px 38px; }
h1 { margin: 0; font: 400 35px Georgia, serif; letter-spacing: -.04em; }
.intro { margin: 12px 0 25px; color: #627478; line-height: 1.5; }
.login-status { min-height: 18px; margin: 0 0 12px; color: #6a7a7d; font-size: 12px; }
.login-actions { display: grid; gap: 11px; }
.provider-button { display: flex; align-items: center; gap: 13px; min-height: 52px; padding: 11px 16px; border: 1px solid #b9c5c5; color: #1d3440; background: #fff; font-weight: 700; text-decoration: none; }
.provider-button:hover { background: #f4f2ed; border-color: #477580; }
.provider-button svg { width: 20px; height: 20px; flex: none; }
.provider-button:focus-visible { outline: 3px solid #e6a17c; outline-offset: 3px; }
@media (max-width: 480px) { .login-screen { padding: 16px; } .card-content { padding: 30px 24px 32px; } }