body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    min-height: 100vh;
    padding: 20px 0;
}

.card {
    border-radius: 15px;
    overflow: hidden;
    border: none;
}

.card-header {
    border-radius: 15px 15px 0 0 !important;
}

.btn-primary, .btn-success {
    border-radius: 50px;
    padding: 10px 20px;
    font-weight: 600;
}

.form-control {
    border-radius: 10px;
    padding: 12px 15px;
}

.form-label {
    font-weight: 600;
    color: #495057;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.card h5 {
    font-weight: 600;
}

.alert {
    border-radius: 10px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .card {
        margin: 0 -15px;
    }
}