.aitd-container { max-width:1400px; margin:0 auto; padding:20px; }
.aitd-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:20px; padding-bottom:15px; border-bottom:2px solid #f0f0f0; }
.aitd-header h2 { font-size:28px; margin:0; background:linear-gradient(135deg, #667eea 0%, #764ba2 100%); -webkit-background-clip:text; -webkit-text-fill-color:transparent; font-weight:800; }
.aitd-sync-status { font-size:12px; color:#999; background:#f8f9fa; padding:5px 12px; border-radius:20px; }

/* Main Layout */
.aitd-main-layout { display:grid; grid-template-columns: 250px 1fr; gap:20px; }
.aitd-sidebar { background:#fff; border-radius:12px; padding:20px; box-shadow:0 2px 8px rgba(0,0,0,0.08); height:fit-content; position:sticky; top:20px; }
.aitd-content { min-width:0; }

/* Search */
.aitd-search-bar { position:relative; margin-bottom:20px; }
.aitd-search-bar input { width:100%; padding:14px 20px 14px 45px; border:2px solid #e8e8e8; border-radius:12px; font-size:15px; transition:all 0.3s; background:#fff; }
.aitd-search-bar input:focus { outline:none; border-color:#667eea; box-shadow:0 0 0 3px rgba(102,126,234,0.2); }
.aitd-search-icon { position:absolute; left:15px; top:50%; transform:translateY(-50%); font-size:18px; color:#999; }

/* Tabs */
.aitd-tabs { display:flex; gap:8px; margin-bottom:20px; background:#fff; padding:8px; border-radius:12px; box-shadow:0 2px 8px rgba(0,0,0,0.08); }
.aitd-tab { flex:1; padding:12px 20px; border-radius:8px; cursor:pointer; font-weight:600; font-size:14px; transition:all 0.3s; background:transparent; color:#555; text-align:center; border:2px solid transparent; }
.aitd-tab:hover { background:#f8f9fa; }
.aitd-tab.active { background:linear-gradient(135deg, #667eea 0%, #764ba2 100%); color:#fff; border-color:transparent; box-shadow:0 4px 12px rgba(102,126,234,0.3); }

/* Sidebar Filters */
.aitd-filter-section { margin-bottom:20px; }
.aitd-filter-section h4 { margin:0 0 12px; font-size:13px; text-transform:uppercase; letter-spacing:1px; color:#999; font-weight:700; }
.aitd-filter-section select { width:100%; padding:8px 12px; border:1px solid #e0e0e0; border-radius:6px; font-size:13px; background:#fff; margin-bottom:8px; }
.aitd-checkbox { display:flex; align-items:center; gap:8px; margin:8px 0; cursor:pointer; font-size:13px; }
.aitd-checkbox input[type="checkbox"] { width:16px; height:16px; accent-color:#667eea; }
.aitd-filter-btn { width:100%; padding:8px; border-radius:6px; border:none; cursor:pointer; font-weight:600; font-size:13px; transition:all 0.2s; margin-top:5px; }
.aitd-apply-btn { background:linear-gradient(135deg, #667eea 0%, #764ba2 100%); color:#fff; }
.aitd-apply-btn:hover { box-shadow:0 4px 12px rgba(102,126,234,0.4); }
.aitd-reset-btn { background:#f0f0f0; color:#555; border:1px solid #e0e0e0; }
.aitd-reset-btn:hover { background:#e8e8e8; }

/* Grid */
.aitd-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(300px, 1fr)); gap:20px; }

/* Cards */
.aitd-card { background:#fff; border:1px solid #e8e8e8; border-radius:12px; padding:0; transition:all 0.3s; cursor:pointer; position:relative; overflow:hidden; }
.aitd-card:hover { transform:translateY(-4px); box-shadow:0 12px 24px rgba(0,0,0,0.1); border-color:#667eea; }
.aitd-card-header { display:flex; justify-content:space-between; align-items:center; padding:15px 20px 10px; }
.aitd-card h3 { margin:0; font-size:16px; font-weight:700; color:#1a1a1a; flex:1; }
.aitd-type-badge { padding:4px 10px; border-radius:20px; font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:0.5px; color:#fff; margin-left:10px; }

/* Card Tags */
.aitd-card-tags { padding:0 20px 10px; display:flex; gap:5px; flex-wrap:wrap; }
.aitd-card-tag { display:inline-block; padding:3px 8px; border-radius:4px; font-size:11px; font-weight:600; }
.aitd-tag-new { background:#00d4ff; color:#fff; }
.aitd-tag-updated { background:#ffc107; color:#000; }
.aitd-tag-trending { background:#ff6b6b; color:#fff; }
.aitd-tag-popular { background:#ffa500; color:#fff; }
.aitd-tag-featured { background:#667eea; color:#fff; }
.aitd-tag-sponsored { background:#28a745; color:#fff; }
.aitd-tag-ad { background:#dc3545; color:#fff; }
.aitd-tag-hot { background:#ff4500; color:#fff; }
.aitd-tag-top-rated { background:#ffd700; color:#000; }
.aitd-tag-editors-choice { background:#6f42c1; color:#fff; }

/* Card Meta */
.aitd-card-meta { padding:0 20px 10px; display:flex; gap:6px; flex-wrap:wrap; }
.aitd-badge { display:inline-block; padding:3px 8px; border-radius:4px; font-size:11px; font-weight:600; }
.aitd-badge-os { background:#2ecc71; color:#fff; }
.aitd-badge-pricing { background:#3498db; color:#fff; }

/* Card Features */
.aitd-card-features { padding:0 20px 10px; }
.aitd-feature-list { display:flex; flex-wrap:wrap; gap:5px; }
.aitd-feature { background:#f8f9fa; padding:3px 8px; border-radius:4px; font-size:11px; color:#555; border:1px solid #e0e0e0; }

/* Card Actions */
.aitd-card-actions { display:flex; align-items:center; justify-content:space-between; padding:10px 20px 15px; border-top:1px solid #f0f0f0; background:#fafafa; }
.aitd-card-left-actions { display:flex; align-items:center; gap:10px; }
.aitd-favorite { cursor:pointer; font-size:18px; color:#ddd; transition:all 0.2s; }
.aitd-favorite.active { color:#ff6b6b; }
.aitd-rating { display:flex; gap:2px; }
.aitd-star { font-size:14px; color:#ffd700; cursor:pointer; transition:all 0.2s; }
.aitd-star.inactive { color:#ddd; }
.aitd-like { cursor:pointer; font-size:14px; color:#999; display:flex; align-items:center; gap:3px; }
.aitd-like.active { color:#667eea; }
.aitd-compare-check { display:flex; align-items:center; gap:5px; font-size:12px; cursor:pointer; }
.aitd-card-right-actions { display:flex; gap:8px; }
.aitd-quick-view, .aitd-learn-more { padding:6px 12px; border-radius:6px; font-size:12px; font-weight:600; text-decoration:none; transition:all 0.2s; }
.aitd-quick-view { background:#f0f0f0; color:#555; border:1px solid #e0e0e0; cursor:pointer; }
.aitd-quick-view:hover { background:#e8e8e8; }
.aitd-learn-more { background:linear-gradient(135deg, #667eea 0%, #764ba2 100%); color:#fff; }
.aitd-learn-more:hover { box-shadow:0 4px 8px rgba(102,126,234,0.3); }

/* Modal */
.aitd-modal { display:none; position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.6); z-index:9999; justify-content:center; align-items:center; }
.aitd-modal.show { display:flex; }
.aitd-modal-content { background:#fff; border-radius:16px; padding:30px; max-width:700px; width:90%; max-height:80vh; overflow-y:auto; position:relative; box-shadow:0 20px 60px rgba(0,0,0,0.3); }
.aitd-modal-close { position:absolute; top:15px; right:20px; font-size:28px; cursor:pointer; color:#999; transition:color 0.2s; line-height:1; }
.aitd-modal-close:hover { color:#333; }
.aitd-modal-content h2 { margin-top:0; font-size:24px; color:#1a1a1a; }
.aitd-modal-content .aitd-meta { background:#f8f9fa; padding:15px; border-radius:8px; margin:15px 0; }
.aitd-modal-content p { font-size:14px; line-height:1.6; color:#555; }
.aitd-modal-content a { color:#667eea; text-decoration:none; font-weight:600; }
.aitd-modal-content a:hover { text-decoration:underline; }

/* Compare */
.aitd-compare-container { max-width:1200px; margin:20px auto; }
.aitd-compare-select select { width:100%; min-height:100px; padding:8px; border:1px solid #ddd; border-radius:6px; }
.aitd-compare-table { width:100%; border-collapse:collapse; margin-top:20px; border-radius:8px; overflow:hidden; box-shadow:0 1px 3px rgba(0,0,0,0.1); }
.aitd-compare-table th, .aitd-compare-table td { border:1px solid #e8e8e8; padding:12px; text-align:left; }
.aitd-compare-table th { background:linear-gradient(135deg, #667eea 0%, #764ba2 100%); color:#fff; font-weight:600; }
.aitd-compare-table tr:nth-child(even) { background:#f8f9fa; }

/* No Results */
.aitd-no-results { grid-column:1 / -1; text-align:center; padding:60px 20px; color:#999; font-size:16px; }
.aitd-no-results-icon { font-size:48px; margin-bottom:15px; }

/* Responsive */
@media (max-width:768px) {
    .aitd-main-layout { grid-template-columns:1fr; }
    .aitd-sidebar { position:static; }
    .aitd-grid { grid-template-columns:1fr; }
}