body {
    background: #f0f2f5;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    width: 100%;
    max-width: 420px;
    box-shadow: 0 4px 24px rgba(0,0,0,.10);
    border: none;
    border-radius: 12px;
}
.login-header {
    background: #1a3a5c;
    border-radius: 12px 12px 0 0;
    padding: 2rem;
    text-align: center;
}
.login-header h1 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    margin: 0.5rem 0 0.25rem;
}
.login-header p {
    color: rgba(255,255,255,.7);
    font-size: 0.85rem;
    margin: 0;
}
.login-body { padding: 2rem; }
.btn-primary-custom {
    background: #1a3a5c;
    border-color: #1a3a5c;
}
.btn-primary-custom:hover,
.btn-primary-custom:focus {
    background: #0f2540;
    border-color: #0f2540;
}