body {
    font-family: 'Vazir', 'Vazirmatn', Tahoma, sans-serif;
    background: linear-gradient(135deg, #0f3443 0%, #34e89e 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.portal-login-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.portal-login-header {
    text-align: center;
    margin-bottom: 30px;
}

    .portal-login-header i {
        font-size: 3.5rem;
        color: #0f766e;
    }

    .portal-login-header h4 {
        color: #0f3443;
        font-weight: bold;
    }

    .portal-login-header p {
        color: #0f766e;
        margin: 0;
    }

.btn-portal {
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
    font-weight: bold;
    background: linear-gradient(135deg, #0f766e 0%, #34d399 100%);
    border: none;
    color: white;
}

    .btn-portal:hover {
        filter: brightness(1.1);
        color: white;
    }