:root {
            --red: #e63329;
            --red-light: #fff0ef;
        }

        body {
            background-color: #f5f5f5;
            font-family: 'Segoe UI', sans-serif;
        }

        /* ===== SIDEBAR ===== */
        .sidebar {
            background: #fff;
            border-radius: 12px;
            border: 1px solid #eee;
        }

        .filter-section {
            border-bottom: 1px solid #f0f0f0;
            padding: 14px 16px;
        }

        .filter-section:last-child {
            border-bottom: none;
        }

        .section-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--red);
            margin-bottom: 10px;
        }

        /* AC Buttons */
        .ac-btn {
            border: 1.5px solid #e0e0e0;
            border-radius: 10px;
            padding: 8px;
            text-align: center;
            cursor: pointer;
            background: #fff;
            font-size: 12px;
            color: #777;
            transition: all 0.2s;
        }

        .ac-btn.active,
        .ac-btn:hover {
            border-color: var(--red);
            color: var(--red);
            background: var(--red-light);
        }

        /* Bus Type Tags */
        .bus-tag {
            border: 1px solid #e0e0e0;
            border-radius: 20px;
            padding: 4px 12px;
            font-size: 11px;
            cursor: pointer;
            color: #666;
            background: #fff;
            transition: all 0.2s;
            white-space: nowrap;
        }

        .bus-tag.active,
        .bus-tag:hover {
            border-color: var(--red);
            color: var(--red);
            background: var(--red-light);
        }

        /* Time Buttons */
        .time-btn {
            border: 1px solid #e0e0e0;
            border-radius: 10px;
            padding: 8px 6px;
            text-align: center;
            cursor: pointer;
            background: #fff;
            transition: all 0.2s;
        }

        .time-btn:hover {
            border-color: var(--red);
            background: var(--red-light);
        }

        .time-btn .t-label {
            font-size: 11px;
            color: #555;
            display: block;
        }

        .time-btn .t-range {
            font-size: 10px;
            color: #aaa;
            display: block;
        }

        /* Company Checkbox */
        .company-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 6px 0;
            font-size: 13px;
            color: #444;
            border-bottom: 1px solid #f5f5f5;
        }

        .company-item:last-child {
            border-bottom: none;
        }

        /* ===== SORT BAR ===== */
        .sort-btn {
            border: 1px solid #ddd;
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 12px;
            color: #666;
            background: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s;
        }

        .sort-btn:hover,
        .sort-btn.active {
            border-color: var(--red);
            color: var(--red);
        }

        .tab-toggle {
            border: 1px solid #ddd;
            border-radius: 8px;
            overflow: hidden;
            display: flex;
        }

        .tab-toggle .tab-item {
            padding: 6px 16px;
            font-size: 12px;
            cursor: pointer;
            background: #fff;
            color: #666;
            border: none;
            outline: none;
            transition: all 0.2s;
        }

        .tab-toggle .tab-item.active {
            background: #fff;
            color: #222;
            font-weight: 600;
            border-bottom: 2px solid var(--red);
        }

        /* ===== AD BANNER ===== */
        .ad-banner {
            border-radius: 10px;
            overflow: hidden;
            background: linear-gradient(120deg, #c8102e 55%, #900020);
            height: 110px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 1.5rem;
            position: relative;
        }

        .ad-banner .ad-badge {
            font-size: 10px;
            font-weight: 700;
            background: rgba(255,255,255,0.2);
            color: #fff;
            padding: 2px 8px;
            border-radius: 20px;
            position: absolute;
            top: 10px;
            right: 10px;
        }

        .ad-banner .ad-logo {
            font-size: 26px;
            font-weight: 900;
            color: white;
            opacity: 0.9;
            letter-spacing: -1px;
        }

        /* ===== BUS CARD ===== */
        .bus-card {
            background: #fff;
            border: 1px solid #eee;
            border-radius: 12px;
            padding: 16px 20px;
            transition: box-shadow 0.2s;
        }

        .bus-card:hover {
            box-shadow: 0 4px 16px rgba(0,0,0,0.07);
        }

        .bus-name {
            font-size: 15px;
            font-weight: 600;
            color: #222;
        }

        .bus-code {
            font-size: 11px;
            color: #aaa;
        }

        .time-big {
            font-size: 17px;
            font-weight: 600;
            color: #222;
        }

        .city-name {
            font-size: 11px;
            color: #999;
        }

        .route-line {
            position: relative;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
        }

        .route-line hr {
            width: 100%;
            border-color: #ddd;
            margin: 0;
        }

        .duration-text {
            font-size: 11px;
            color: #bbb;
        }

        .price-text {
            font-size: 20px;
            font-weight: 700;
            color: #222;
        }

        .price-old {
            font-size: 12px;
            color: #bbb;
            text-decoration: line-through;
        }

        .save-badge {
            background: #fff8e1;
            color: #c07800;
            font-size: 10px;
            padding: 3px 10px;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        .card-footer-bar {
            border-top: 1px solid #f0f0f0;
            padding-top: 10px;
            margin-top: 4px;
        }

        .boarding-link {
            font-size: 12px;
            color: #888;
            cursor: pointer;
        }

        .boarding-link:hover {
            color: var(--red);
        }

        .class-tag {
            border: 1px solid #e0e0e0;
            border-radius: 20px;
            padding: 3px 10px;
            font-size: 11px;
            color: #666;
        }

        .seats-left {
            font-size: 12px;
            color: #888;
        }

        .seats-num {
            color: var(--red);
            font-weight: 600;
        }

        .btn-view {
            background: var(--red);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 7px 18px;
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: background 0.2s;
        }

        .btn-view:hover {
            background: #c0271f;
        }