/* Reset and Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #2c3e50;
            --secondary-color: #34495e;
            --accent-color: #d4af37;
            --accent-hover: #c99f2f;
            --text-dark: #1a1a1a;
            --text-light: #f8f9fa;
            --text-muted: #7f8c8d;
            --bg-light: #f5f5f5;
            --card-bg: #ffffff;
            --border-color: #e0e0e0;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.15);
            
            /* Price color tiers */
            --price-excellent: #696CFF;
            --price-good: #52c991;
            --price-medium: #f39c12;
            --price-high: #e67e22;
            --price-expensive: #c0392b;
            
            /* Selection colors */
            --departure-color: #3498db;
            --return-color: #9b59b6;
        }

        .price-excellent {
            background: rgba(82, 201, 145, 0.15);
            color: #2ecc71;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        /* Header */
        header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: var(--text-light);
            padding: 1.5rem 0;
            box-shadow: var(--shadow);
        }

        .header-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 300;
            letter-spacing: 1px;
            text-decoration: none;
            color: var(--text-light);
        }

        .back-btn {
            padding: 0.6rem 1.5rem;
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
            text-decoration: none;
            border-radius: 6px;
            font-weight: 500;
            transition: background 0.3s ease, transform 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .back-btn:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        /* Container */
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
        }

        /* Selection Summary */
        .selection-summary {
            background: var(--card-bg);
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .selected-dates {
            display: flex;
            gap: 2rem;
            flex: 1;
        }

        .date-box {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }

        .date-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .date-value {
            font-size: 1.3rem;
            font-weight: 300;
            color: var(--primary-color);
        }

        .date-value.empty {
            color: var(--text-muted);
            font-style: italic;
        }

        .confirm-btn {
            padding: 0.9rem 2rem;
            background: var(--accent-color);
            color: var(--text-dark);
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .confirm-btn:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
            background: var(--accent-hover);
        }

        .confirm-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Mobile Tabs */
        .mobile-tabs {
            display: none;
            background: var(--card-bg);
            border-radius: 12px;
            padding: 1rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
        }

        .tabs-navigation {
            display: flex;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .tab-btn {
            flex: 1;
            padding: 1rem;
            background: var(--bg-light);
            border: 2px solid var(--border-color);
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .tab-btn.active {
            background: var(--accent-color);
            border-color: var(--accent-color);
            color: var(--text-dark);
        }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        /* Dual Calendar Layout */
        .calendars-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        /* Calendário centralizado quando há apenas um (somente ida) */
        .calendars-wrapper:has(.calendar-card:only-child) {
            grid-template-columns: 1fr;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Calendar Card */
        .calendar-card {
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: var(--shadow);
            padding: 1.5rem;
        }

        .calendar-card.departure {
            border-top: 3px solid var(--departure-color);
        }

        .calendar-card.return {
            border-top: 3px solid var(--return-color);
        }

        /* Calendar Header */
        .calendar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid var(--border-color);
        }

        .calendar-title {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }

        .trip-type {
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .trip-type.departure {
            color: var(--departure-color);
        }

        .trip-type.return {
            color: var(--return-color);
        }

        .calendar-month {
            font-size: 1.3rem;
            font-weight: 300;
            color: var(--primary-color);
            letter-spacing: 0.5px;
            text-transform: capitalize;
        }

        .calendar-nav {
            display: flex;
            gap: 0.5rem;
        }

        .nav-btn {
            padding: 0.5rem 0.8rem;
            background: var(--bg-light);
            color: var(--text-dark);
            border: 2px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .nav-btn:hover {
            background: var(--accent-color);
            border-color: var(--accent-color);
            transform: translateY(-2px);
        }

        /* Mobile-specific nav sizing */
        .mobile-nav .nav-btn {
            padding: 0.35rem 0.5rem;
            font-size: 0.9rem;
            border-radius: 5px;
        }

        /* Loading state for calendar grids (applied via JS) */
        .calendar-grid.loading {
            opacity: 0.45;
            pointer-events: none;
            position: relative;
        }

        .calendar-grid.loading::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0,0,0,0.06);
            pointer-events: none;
        }

        /* Calendar Grid */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 0;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
        }

        .calendar-weekday {
            background: var(--bg-light);
            color: var(--text-muted);
            padding: 0.5rem;
            text-align: center;
            font-weight: 600;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .calendar-day {
            background: white;
            border: 1px solid var(--border-color);
            padding: 0.6rem 0.4rem;
            min-height: 70px;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
        }

        .calendar-day:hover:not(.empty):not(.disabled) {
            transform: scale(1.08);
            box-shadow: var(--shadow);
            z-index: 10;
        }

        .calendar-day.empty {
            background: var(--bg-light);
            cursor: default;
        }

        .calendar-day.disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

        .calendar-day.selected-departure {
            background: rgba(52, 152, 219, 0.15);
            border: 2px solid var(--departure-color);
        }

        .calendar-day.selected-return {
            background: rgba(155, 89, 182, 0.15);
            border: 2px solid var(--return-color);
        }

        .day-number {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.3rem;
        }

        .day-price {
            padding: 0.3rem;
            border-radius: 4px;
            font-size: 0.7rem;
            font-weight: 600;
            text-align: center;
            line-height: 1.2;
        }



        .price-good {
            background: #E7E7FF;
            color: var(--price-excellent);
        }

        .price-medium {
            background: rgba(243, 156, 18, 0.15);
            color: var(--price-medium);
        }

        .price-high {
            background: rgba(230, 126, 34, 0.15);
            color: var(--price-high);
        }

        .price-expensive {
            background: rgba(192, 57, 43, 0.15);
            color: var(--price-expensive);
        }

        /* Legend */
        .price-legend {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 2rem;
            padding: 1.5rem;
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: var(--shadow);
            flex-wrap: wrap;
        }

        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .legend-color {
            width: 25px;
            height: 18px;
            border-radius: 4px;
        }

        .legend-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Painel adicionar trecho */
        .add-leg-panel {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 1.5rem;
            padding: 1.2rem 1.5rem;
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: var(--shadow);
            flex-wrap: wrap;
        }

        .add-leg-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .add-leg-controls {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
            flex: 1;
        }

        .add-leg-controls select,
        .add-leg-controls input[type="date"] {
            padding: 0.55rem 0.85rem;
            border: 1.5px solid var(--border-color);
            border-radius: 8px;
            background: var(--bg-color);
            color: var(--text-color);
            font-size: 0.9rem;
            outline: none;
            transition: border-color 0.2s;
        }

        .add-leg-controls select:focus,
        .add-leg-controls input[type="date"]:focus {
            border-color: var(--primary-color);
        }

        .add-leg-controls button {
            padding: 0.55rem 1.4rem;
            background: var(--primary-color);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }

        .add-leg-controls button:hover {
            background: var(--accent-color);
        }

        /* Footer */
        footer {
            background: var(--primary-color);
            color: var(--text-light);
            text-align: center;
            padding: 2rem;
            margin-top: 4rem;
        }

        footer p {
            font-weight: 300;
            letter-spacing: 0.5px;
        }

        .selection-summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .selected-dates {
            flex: 1;
            text-align: left;
        }

        .trip-info {
            flex: 1;
            text-align: center;
        }

        .action-box {
            flex: 1;
            text-align: right;
        }

        .route {
            font-weight: 300;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
            letter-spacing: 1px;
        }

        .route-arrow {
            color: var(--accent-color);
            margin: 0 1rem;
        }

        .route-cell {
            font-weight: 500;
        }

        .route {
            font-size: 1.3rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .calendars-wrapper {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 1rem;
            }

            .selection-summary {
                flex-direction: column;
            }

            .selected-dates {
                flex-direction: column;
                width: 100%;
                gap: 1rem;
            }

            .confirm-btn {
                width: 100%;
            }

            /* Show mobile tabs, hide desktop calendars */
            .calendars-wrapper {
                display: none;
            }

            .mobile-tabs {
                display: block;
            }

            .calendar-day {
                min-height: 65px;
                padding: 0.4rem 0.3rem;
            }

            .day-number {
                font-size: 0.8rem;
            }

            .day-price {
                font-size: 0.65rem;
            }

            .container {
                padding: 0.8rem; /* diminui a borda interna só em telas pequenas */
            }
        }

        /* Animation */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .calendar-card {
            animation: fadeIn 0.5s ease;
        }