/* Custom styles for SeReact Frontend */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

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

.page {
    min-height: 70vh;
}

.jumbotron {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px;
}

.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: box-shadow 0.15s ease-in-out;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

.btn:hover {
    transform: translateY(-1px);
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.image-card {
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease-in-out;
}

.image-card:hover {
    transform: scale(1.02);
}

.image-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.search-result {
    border-left: 4px solid var(--primary-color);
    background-color: white;
    margin-bottom: 1rem;
    border-radius: 0 8px 8px 0;
}

.similarity-score {
    background: linear-gradient(90deg, var(--success-color), var(--warning-color), var(--danger-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

.alert {
    border-radius: 8px;
    border: none;
}

.modal-content {
    border-radius: 12px;
    border: none;
}

.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.table {
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--light-color);
    border-bottom: 2px solid var(--primary-color);
    font-weight: 600;
}

.badge {
    font-size: 0.75em;
    padding: 0.5em 0.75em;
    border-radius: 6px;
}

.nav-link {
    border-radius: 6px;
    margin: 0 2px;
    transition: background-color 0.2s ease-in-out;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .jumbotron {
        padding: 2rem 1rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Animation for page transitions */
.page {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* File upload area */
.upload-area {
    border: 2px dashed var(--primary-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    background-color: rgba(13, 110, 253, 0.05);
    transition: all 0.2s ease-in-out;
    cursor: pointer;
}

.upload-area:hover {
    background-color: rgba(13, 110, 253, 0.1);
    border-color: var(--primary-color);
}

.upload-area.dragover {
    background-color: rgba(13, 110, 253, 0.15);
    border-color: var(--primary-color);
    transform: scale(1.02);
}

/* Status indicators */
.status-online {
    color: var(--success-color);
}

.status-offline {
    color: var(--danger-color);
}

.status-pending {
    color: var(--warning-color);
}

/* Tag styles */
.tag {
    display: inline-block;
    background-color: var(--light-color);
    color: var(--dark-color);
    padding: 0.25rem 0.5rem;
    margin: 0.125rem;
    border-radius: 12px;
    font-size: 0.875rem;
    border: 1px solid var(--secondary-color);
}

.tag-input {
    border: none;
    outline: none;
    background: transparent;
    min-width: 100px;
}

/* Progress bars */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: var(--light-color);
}

.progress-bar {
    border-radius: 4px;
}

/* Utility classes */
.text-muted-light {
    color: #6c757d !important;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color), #146c43);
}

.bg-gradient-info {
    background: linear-gradient(135deg, var(--info-color), #0aa2c0);
}

.shadow-sm-hover:hover {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.cursor-pointer {
    cursor: pointer;
}

.user-select-none {
    user-select: none;
}