body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

.card-header {
    background: linear-gradient(45deg, #007bff, #0056b3) !important;
    border: none;
    padding: 1.5rem;
}

.card-title {
    font-weight: 600;
    letter-spacing: 0.5px;
}

.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    transform: translateY(-2px);
}

.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

.btn-primary {
    background: linear-gradient(45deg, #007bff, #0056b3);
    border: none;
    border-radius: 10px;
    padding: 12px 30px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
}

.alert-success {
    background: linear-gradient(45deg, #d4edda, #c3e6cb);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(45deg, #f8d7da, #f5c6cb);
    color: #721c24;
}

/* Animasyonlar */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive tasarım */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .card-header {
        padding: 1rem;
    }
    
    .card-title {
        font-size: 1.25rem;
    }
}