body {
    background: linear-gradient(135deg, #eee 0%, #ccc 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.auth-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
}
.auth-header {
    background: linear-gradient(to right, #4e73df, #224abe);
    color: white;
    padding: 30px 20px;
    text-align: center;
}
.auth-body {
    padding: 30px;
}
.form-control:focus {
    border-color: #4e73df;
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
}
.btn-primary {
    background: linear-gradient(to right, #4e73df, #224abe);
    border: none;
    padding: 12px;
    font-weight: 600;
}
.auth-logo {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #4e73df;
    font-size: 32px;
}