/* Custom styles for HTML Converter */

.drop-zone {
    border: 2px dashed #dee2e6;
    border-radius: 0.5rem;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
    cursor: pointer;
}

.drop-zone:hover {
    border-color: #0d6efd;
    background-color: #e7f1ff;
}

.drop-zone.dragover {
    border-color: #0d6efd;
    background-color: #e7f1ff;
    transform: scale(1.02);
}

.drop-zone-content {
    pointer-events: none;
}

.card {
    border: none;
    border-radius: 1rem;
}

.card-header {
    border-radius: 1rem 1rem 0 0 !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
}

.progress-bar {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.list-group-item {
    border: none;
    padding: 0.75rem 0;
    background: transparent;
}

.list-group-item:not(:last-child) {
    border-bottom: 1px solid #e9ecef;
}

.alert {
    border: none;
    border-radius: 0.75rem;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .drop-zone {
        padding: 2rem 1rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}