/**
 * AI Model Tracker Pro - Frontend Styles
 * Includes Dark Mode support
 */

/* ========================================
   CSS Custom Properties (Light Mode Default)
   ======================================== */
:root {
    --amtp-bg: #ffffff;
    --amtp-bg-alt: #f8f9fa;
    --amtp-bg-hover: #f0f1f2;
    --amtp-text: #333333;
    --amtp-text-muted: #666666;
    --amtp-text-light: #999999;
    --amtp-border: #e0e0e0;
    --amtp-border-light: #eeeeee;
    --amtp-primary: #0073aa;
    --amtp-primary-dark: #005a87;
    --amtp-primary-light: #f0f7fc;
    --amtp-success: #28a745;
    --amtp-warning: #ffc107;
    --amtp-danger: #dc3545;
    --amtp-shadow: rgba(0, 0, 0, 0.1);
    --amtp-shadow-lg: rgba(0, 0, 0, 0.15);
    --amtp-radius: 8px;
    --amtp-radius-sm: 4px;
    --amtp-radius-lg: 12px;
    --amtp-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ========================================
   Dark Mode Theme
   ======================================== */
.amtp-dark-mode,
[data-theme="dark"] .amtp-model-table-container,
@media (prefers-color-scheme: dark) {
    .amtp-auto-dark {
        --amtp-bg: #1a1a2e;
        --amtp-bg-alt: #16213e;
        --amtp-bg-hover: #0f3460;
        --amtp-text: #e8e8e8;
        --amtp-text-muted: #b0b0b0;
        --amtp-text-light: #808080;
        --amtp-border: #2d3748;
        --amtp-border-light: #374151;
        --amtp-primary: #4da6ff;
        --amtp-primary-dark: #2d8cff;
        --amtp-primary-light: rgba(77, 166, 255, 0.1);
        --amtp-shadow: rgba(0, 0, 0, 0.3);
        --amtp-shadow-lg: rgba(0, 0, 0, 0.4);
    }
}

.amtp-dark-mode {
    --amtp-bg: #1a1a2e;
    --amtp-bg-alt: #16213e;
    --amtp-bg-hover: #0f3460;
    --amtp-text: #e8e8e8;
    --amtp-text-muted: #b0b0b0;
    --amtp-text-light: #808080;
    --amtp-border: #2d3748;
    --amtp-border-light: #374151;
    --amtp-primary: #4da6ff;
    --amtp-primary-dark: #2d8cff;
    --amtp-primary-light: rgba(77, 166, 255, 0.1);
    --amtp-shadow: rgba(0, 0, 0, 0.3);
    --amtp-shadow-lg: rgba(0, 0, 0, 0.4);
}

/* ========================================
   Dark Mode Toggle Button
   ======================================== */
.amtp-theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--amtp-bg-alt);
    color: var(--amtp-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px var(--amtp-shadow-lg);
    transition: all 0.3s ease;
    z-index: 1000;
}

.amtp-theme-toggle:hover {
    transform: scale(1.1);
    background: var(--amtp-primary);
    color: #fff;
}

.amtp-theme-toggle .sun-icon {
    display: block;
}

.amtp-theme-toggle .moon-icon {
    display: none;
}

.amtp-dark-mode .amtp-theme-toggle .sun-icon {
    display: none;
}

.amtp-dark-mode .amtp-theme-toggle .moon-icon {
    display: block;
}

/* ========================================
   Base Container Styles
   ======================================== */
.amtp-model-table-container,
.amtp-comparison-container,
.amtp-search-widget,
.amtp-favorites-container,
.amtp-rating-widget {
    font-family: var(--amtp-font);
    color: var(--amtp-text);
    background: var(--amtp-bg);
}

/* ========================================
   Table Styles
   ======================================== */
.amtp-model-table-container {
    margin: 20px 0;
    padding: 20px;
    background: var(--amtp-bg);
    border-radius: var(--amtp-radius-lg);
    border: 1px solid var(--amtp-border);
}

.amtp-table-header {
    margin-bottom: 16px;
}

.amtp-search-box {
    position: relative;
    display: inline-block;
}

.amtp-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--amtp-text-light);
    pointer-events: none;
}

.amtp-table-search-input {
    width: 280px;
    padding: 10px 12px 10px 38px;
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius);
    font-size: 14px;
    background: var(--amtp-bg);
    color: var(--amtp-text);
    transition: all 0.2s;
}

.amtp-table-search-input:focus {
    outline: none;
    border-color: var(--amtp-primary);
    box-shadow: 0 0 0 3px var(--amtp-primary-light);
}

.amtp-table-search-input::placeholder {
    color: var(--amtp-text-light);
}

/* Category Bar */
.amtp-category-bar {
    margin-bottom: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--amtp-border-light);
}

.amtp-category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.amtp-cat-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border: 1px solid var(--amtp-border);
    background: var(--amtp-bg);
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
    color: var(--amtp-text-muted);
}

.amtp-cat-chip:hover {
    border-color: var(--amtp-primary);
    color: var(--amtp-primary);
    background: var(--amtp-primary-light);
}

.amtp-cat-chip.active {
    background: linear-gradient(135deg, var(--amtp-primary), var(--amtp-primary-dark));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 4px var(--amtp-shadow);
}

.amtp-chip-count {
    background: rgba(0, 0, 0, 0.08);
    padding: 2px 7px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.amtp-cat-chip.active .amtp-chip-count {
    background: rgba(255, 255, 255, 0.25);
}

/* Table */
.amtp-table-wrapper {
    overflow-x: auto;
    border-radius: var(--amtp-radius);
    border: 1px solid var(--amtp-border);
}

.amtp-model-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.amtp-model-table th,
.amtp-model-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--amtp-border-light);
}

.amtp-model-table th {
    background: var(--amtp-bg-alt);
    font-weight: 600;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    position: sticky;
    top: 0;
    border-bottom: 2px solid var(--amtp-border);
    color: var(--amtp-text);
}

.amtp-model-table th:hover {
    background: var(--amtp-bg-hover);
}

.amtp-model-table th[data-no-sort="true"] {
    cursor: default;
}

/* Row Number */
.amtp-col-num {
    width: 50px;
    text-align: center !important;
    color: var(--amtp-text-light);
}

.amtp-row-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--amtp-bg-alt);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--amtp-text-muted);
}

/* Sort Icon */
.amtp-sort-icon {
    margin-left: 5px;
    opacity: 0.3;
    font-size: 12px;
}

.amtp-model-table th.asc .amtp-sort-icon,
.amtp-model-table th.desc .amtp-sort-icon {
    opacity: 1;
    color: var(--amtp-primary);
}

/* Table Rows */
.amtp-model-table tbody tr {
    transition: background 0.15s;
}

.amtp-model-table tbody tr:hover {
    background: var(--amtp-bg-alt);
}

.amtp-model-table tbody tr:last-child td {
    border-bottom: none;
}

.amtp-model-table tbody tr.hidden {
    display: none;
}

.amtp-model-table a {
    color: var(--amtp-primary);
    text-decoration: none;
    font-weight: 500;
}

.amtp-model-table a:hover {
    text-decoration: underline;
}

/* Thumbnail */
.amtp-col-thumbnail img,
.amtp-thumb {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 6px;
}

/* Pagination */
.amtp-table-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--amtp-bg-alt);
    border-radius: var(--amtp-radius);
    border: 1px solid var(--amtp-border);
}

.amtp-pagination-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.amtp-page-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--amtp-border);
    background: var(--amtp-bg);
    color: var(--amtp-text);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.amtp-page-btn:hover:not(:disabled) {
    background: var(--amtp-primary);
    color: #fff;
    border-color: var(--amtp-primary);
}

.amtp-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.amtp-page-info {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--amtp-text-muted);
    white-space: nowrap;
}

.amtp-page-input {
    width: 48px;
    padding: 5px;
    text-align: center;
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius-sm);
    font-size: 13px;
    background: var(--amtp-bg);
    color: var(--amtp-text);
}

.amtp-page-input:focus {
    outline: none;
    border-color: var(--amtp-primary);
}

.amtp-items-info {
    font-size: 13px;
    color: var(--amtp-text-light);
    white-space: nowrap;
}

/* ========================================
   Rating Widget Styles
   ======================================== */
.amtp-rating-widget {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.amtp-stars {
    display: flex;
    gap: 2px;
}

.amtp-star {
    font-size: 20px;
    color: var(--amtp-border);
    cursor: default;
    transition: all 0.15s;
}

.amtp-star.filled {
    color: var(--amtp-warning);
}

.amtp-rating-interactive .amtp-star {
    cursor: pointer;
}

.amtp-rating-interactive .amtp-star:hover,
.amtp-rating-interactive .amtp-star.hover {
    color: var(--amtp-warning);
    transform: scale(1.2);
}

.amtp-rating-meta {
    font-size: 13px;
    color: var(--amtp-text-muted);
}

.amtp-rating-avg {
    font-weight: 600;
    color: var(--amtp-text);
}

.amtp-mini-rating {
    color: var(--amtp-warning);
    font-size: 12px;
    letter-spacing: -1px;
}

/* Rating sizes */
.amtp-rating-small .amtp-star {
    font-size: 14px;
}

.amtp-rating-large .amtp-star {
    font-size: 28px;
}

/* Rating loading */
.amtp-rating-loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ========================================
   Export Button Styles
   ======================================== */
.amtp-export-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--amtp-bg);
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius);
    color: var(--amtp-text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.amtp-export-btn:hover {
    background: var(--amtp-primary);
    color: #fff;
    border-color: var(--amtp-primary);
}

.amtp-export-btn svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   Toast Notifications
   ======================================== */
.amtp-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 12px 24px;
    background: var(--amtp-text);
    color: var(--amtp-bg);
    border-radius: var(--amtp-radius);
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px var(--amtp-shadow-lg);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
}

.amtp-toast-visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.amtp-toast-success {
    background: var(--amtp-success);
    color: #fff;
}

.amtp-toast-error {
    background: var(--amtp-danger);
    color: #fff;
}

/* ========================================
   Comparison Table
   ======================================== */
.amtp-comparison-container {
    margin: 20px 0;
    overflow-x: auto;
}

.amtp-comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--amtp-bg);
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius);
    overflow: hidden;
}

.amtp-comparison-table th,
.amtp-comparison-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--amtp-border-light);
    text-align: center;
}

.amtp-comparison-table th {
    background: var(--amtp-bg-alt);
    font-weight: 600;
    color: var(--amtp-text);
}

.amtp-comparison-table .amtp-feature-label {
    text-align: left;
    font-weight: 500;
    background: var(--amtp-bg-alt);
    color: var(--amtp-text-muted);
}

/* ========================================
   Comparison History
   ======================================== */
.amtp-comparison-history {
    padding: 16px;
    background: var(--amtp-bg);
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius);
}

.amtp-comparison-history h4 {
    margin: 0 0 12px;
    color: var(--amtp-text);
}

.amtp-history-list ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.amtp-history-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    border-bottom: 1px solid var(--amtp-border-light);
}

.amtp-history-list li:last-child {
    border-bottom: none;
}

.amtp-history-item {
    flex: 1;
    text-decoration: none;
    color: var(--amtp-text);
}

.amtp-history-item:hover .amtp-history-name {
    color: var(--amtp-primary);
}

.amtp-history-name {
    display: block;
    font-weight: 500;
}

.amtp-history-date {
    font-size: 12px;
    color: var(--amtp-text-light);
}

.amtp-history-delete {
    background: none;
    border: none;
    color: var(--amtp-text-light);
    cursor: pointer;
    font-size: 18px;
    padding: 4px 8px;
}

.amtp-history-delete:hover {
    color: var(--amtp-danger);
}

/* ========================================
   Favorites
   ======================================== */
.amtp-favorites-container {
    padding: 20px;
    background: var(--amtp-bg);
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius-lg);
}

.amtp-favorites-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.amtp-favorites-header h3 {
    margin: 0;
    color: var(--amtp-text);
}

.amtp-favorites-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: var(--amtp-primary);
    color: #fff;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.amtp-empty-message {
    text-align: center;
    color: var(--amtp-text-light);
    padding: 40px 20px;
}

/* ========================================
   Search Widget
   ======================================== */
.amtp-search-widget {
    padding: 20px;
    background: var(--amtp-bg);
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius-lg);
}

.amtp-search-form {
    display: flex;
    gap: 10px;
}

.amtp-search-widget .amtp-search-box {
    flex: 1;
}

.amtp-search-widget .amtp-search-input {
    width: 100%;
    padding: 12px 12px 12px 42px;
    border: 1px solid var(--amtp-border);
    border-radius: var(--amtp-radius);
    font-size: 15px;
    background: var(--amtp-bg);
    color: var(--amtp-text);
}

.amtp-search-btn {
    padding: 12px 24px;
    background: var(--amtp-primary);
    color: #fff;
    border: none;
    border-radius: var(--amtp-radius);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.amtp-search-btn:hover {
    background: var(--amtp-primary-dark);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .amtp-table-pagination {
        flex-direction: column;
        gap: 12px;
    }

    .amtp-table-search-input {
        width: 100%;
    }

    .amtp-search-form {
        flex-direction: column;
    }

    .amtp-theme-toggle {
        bottom: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
}

/* ========================================
   No Results Message
   ======================================== */
.amtp-no-results,
.amtp-no-data {
    text-align: center;
    padding: 60px 20px;
    color: var(--amtp-text-muted);
    background: var(--amtp-bg-alt);
    border-radius: var(--amtp-radius);
}

/* ========================================
   Loading States
   ======================================== */
.amtp-loading {
    text-align: center;
    padding: 20px;
    color: var(--amtp-text-light);
}

.amtp-loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 8px;
    border: 2px solid var(--amtp-border);
    border-top-color: var(--amtp-primary);
    border-radius: 50%;
    animation: amtp-spin 0.8s linear infinite;
}

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