* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #1A2A6B 0%, #2A3F8F 100%);
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    color: #1F2937;
}
.auth-wrap { width: 100%; max-width: 420px; padding: 1.5rem; }
.auth-card {
    background: #FFFFFF; border-radius: 12px; padding: 2.25rem 2rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}
.auth-brand { text-align: center; margin-bottom: 1.75rem; padding-bottom: 1.25rem; border-bottom: 1px solid #E5E7EB; }
.auth-brand h1 { margin: 0; color: #1A2A6B; font-size: 1.45rem; font-weight: 700; }
.auth-brand .auth-logo { display: block; width: 240px; max-width: 84%; height: auto; margin: 0 auto; }
.auth-brand small { display: block; color: #6B7280; margin-top: 0.5rem; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.auth-title { font-size: 1.15rem; margin: 0 0 0.5rem; font-weight: 600; }
.auth-sub { color: #6B7280; font-size: 0.85rem; margin: 0 0 1.25rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.35rem; font-size: 0.85rem; font-weight: 500; color: #374151; }
.form-input {
    width: 100%; padding: 0.6rem 0.75rem; border: 1px solid #D1D5DB; border-radius: 6px;
    font-size: 0.95rem; font-family: inherit; transition: border-color 0.15s, box-shadow 0.15s;
}
.form-input:focus { outline: none; border-color: #1A2A6B; box-shadow: 0 0 0 3px rgba(26,42,107,0.12); }
.form-error { display: block; color: #DC2626; font-size: 0.8rem; margin-top: 0.3rem; }
.form-error-summary { color: #DC2626; font-size: 0.85rem; background: #FEE2E2; border: 1px solid #FCA5A5; border-radius: 6px; padding: 0.6rem 0.85rem; margin: 0.75rem 0 1rem; }
.form-error-summary:empty { display: none; }
.form-error-summary ul { margin: 0; padding: 0 0 0 1.1rem; }
.btn-primary {
    width: 100%; background: #1A2A6B; color: white; border: none; border-radius: 6px;
    padding: 0.7rem 1rem; font-size: 0.95rem; font-weight: 600; cursor: pointer;
}
.btn-primary:hover { background: #2A3F8F; }
.auth-footer { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid #E5E7EB; text-align: center; color: #9CA3AF; }