* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background: white;
        }

       .search-container {
            max-width: 1000px;
            margin: 50px auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }

        .tab-navigation {
            display: flex;
            background: #f8f9fa;
            border-bottom: 1px solid #e9ecef;
        }

        .tab {
            flex: 1;
            padding: 12px 16px;
            color: #6c757d;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s ease;
            font-weight: 500;
            font-size: 14px;
            border-bottom: 2px solid transparent;
        }

        .tab.active {
            color: #667eea;
            border-bottom-color: #667eea;
            background: white;
        }

        .form-container {
            padding: 24px;
            background: white;
            position: relative;
        }

        .form-section {
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .form-section.first-half {
            opacity: 1;
            transform: translateY(0);
        }

        .form-section.second-half {
            opacity: 0;
            transform: translateY(15px);
            max-height: 0;
            overflow: hidden;
            pointer-events: none;
        }

        .form-section.second-half.show {
            opacity: 1;
            transform: translateY(0);
            max-height: 800px;
            pointer-events: auto;
            margin-top: 20px;
        }

        .main-row {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-row {
            display: flex;
            gap: 16px;
            margin-bottom: 16px;
            align-items: end;
        }

        .form-row .form-group {
            flex: 1;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .form-group label {
            font-weight: 500;
            color: #495057;
            margin-bottom: 6px;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .form-group input,
        .form-group select {
            padding: 12px 14px;
            border: 1px solid #dee2e6;
            border-radius: 6px;
            font-size: 14px;
            transition: all 0.2s ease;
            background: white;
            color: #495057;
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
            background-position: right 10px center;
            background-repeat: no-repeat;
            background-size: 16px;
            padding-right: 40px;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
        }

        .form-group input::placeholder {
            color: #adb5bd;
            font-size: 13px;
        }

        .radio-group {
            display: flex;
            gap: 16px;
            margin-top: 6px;
        }

        .radio-option {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .radio-option input[type="radio"] {
            width: 16px;
            height: 16px;
            margin: 0;
            accent-color: #667eea;
        }

        .radio-option label {
            font-size: 13px;
            margin: 0;
            text-transform: none;
            letter-spacing: normal;
            font-weight: 400;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 6px;
        }

        .checkbox-group input[type="checkbox"] {
            width: 16px;
            height: 16px;
            margin: 0;
            accent-color: #667eea;
        }

        .checkbox-group label {
            font-size: 13px;
            margin: 0;
            text-transform: none;
            letter-spacing: normal;
            font-weight: 400;
        }

        .passenger-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            align-items: end;
        }

        .search-button {
            width: 100%;
            max-width: 200px;
            padding: 12px 24px;
            background: #667eea;
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            margin: 16px auto 0;
            display: block;
        }

        .search-button:hover {
            background: #5a67d8;
            transform: translateY(-1px);
        }

        .toggle-hint {
            position: absolute;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(102, 126, 234, 0.1);
            padding: 6px 12px;
            border-radius: 12px;
            font-size: 11px;
            color: #667eea;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .toggle-hint.hidden {
            opacity: 0;
            pointer-events: none;
        }

        @media (max-width: 768px) {
            .main-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            
            .form-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            
            .form-container {
                padding: 20px;
            }

            .tab {
                font-size: 12px;
                padding: 10px 8px;
            }

            .passenger-group {
                grid-template-columns: 1fr;
            }
        }

        .clear-indicator {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            color: #adb5bd;
            font-size: 12px;
            opacity: 0;
            transition: opacity 0.2s ease;
        }

        .form-group:hover .clear-indicator {
            opacity: 1;
        }