:root {
            --primary-color: #ff6600;
            --primary-hover: #e65c00;
            --primary-light: #fff0e6;
            --primary-dark: #cc5200;
            --text-dark: #2d2d2d;
            --text-light: #666666;
            --border-color: #e0e0e0;
        }

        /* Modern Form Styles */
        .form-control, .form-select {
            padding: 0.75rem 1rem;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(255, 102, 0, 0.1);
        }

        .form-label {
            font-weight: 500;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }

        /* Address Cards Grid */
        .address-cards {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .address-card {
            position: relative;
            padding: 1.5rem;
            border: 2px solid var(--border-color);
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            background: white;
        }

        .address-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-2px);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }

        .address-card.selected {
            border-color: var(--primary-color);
            background-color: var(--primary-light);
        }

        .address-card .check-icon {
            position: absolute;
            top: 1rem;
            right: 1rem;
            color: var(--primary-color);
            font-size: 1.25rem;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .address-card.selected .check-icon {
            opacity: 1;
        }

        .address-card .card-title {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.75rem;
            color: var(--text-dark);
        }

        .address-card .card-text {
            color: var(--text-light);
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
        }

        .new-address-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            border-style: dashed;
            min-height: 160px;
        }

        .new-address-card i {
            font-size: 2rem;
            color: var(--text-light);
            margin-bottom: 1rem;
            transition: color 0.3s ease;
        }

        .new-address-card:hover i {
            color: var(--primary-color);
        }

        /* Step Navigation */
        .stepper-wrapper {
            margin-bottom: 2rem;
            display: flex;
            justify-content: space-between;
            padding: 1rem 0;
        }

        .stepper-item {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            flex: 1;
        }

        .stepper-item::before {
            position: absolute;
            content: "";
            border-bottom: 2px solid var(--border-color);
            width: 100%;
            top: 20px;
            left: -50%;
            z-index: 2;
        }

        .stepper-item::after {
            position: absolute;
            content: "";
            border-bottom: 2px solid var(--border-color);
            width: 100%;
            top: 20px;
            left: 50%;
            z-index: 2;
        }

        .stepper-item .step-counter {
            position: relative;
            z-index: 5;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--border-color);
            margin-bottom: 6px;
        }

        .stepper-item.active {
            font-weight: bold;
        }

        .stepper-item.active .step-counter {
            background-color: var(--primary-color);
            color: white;
        }

        .stepper-item.completed .step-counter {
            background-color: var(--primary-dark);
            color: white;
        }

        .stepper-item.completed::after {
            position: absolute;
            content: "";
            border-bottom: 2px solid var(--primary-color);
            width: 100%;
            top: 20px;
            left: 50%;
            z-index: 3;
        }

        .stepper-item:first-child::before {
            content: none;
        }

        .stepper-item:last-child::after {
            content: none;
        }

        .stepper-item .step-name {
            color: var(--text-light);
            font-size: 0.875rem;
        }

        /* Quantity Button Group */
        .quantity-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .quantity-btn-group .btn {
            min-width: 48px;
            height: 48px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            background: white;
            color: var(--text-dark);
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .quantity-btn-group .btn:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
        }

        .quantity-btn-group .btn.active {
            background: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
        }

        /* Order Summary Card */
        .order-summary-card {
            border-radius: 12px;
            overflow: hidden;
        }

        .order-summary-card .card-header {
            background: white;
            border-bottom: 1px solid var(--border-color);
        }

        .order-summary-card .list-group-item {
            padding: 1rem 0;
            border-color: var(--border-color);
        }

        .order-summary-card .total {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary-color);
        }

        /* Trust Badges */
        .trust-badge-item {
            display: flex;
            align-items: center;
        }

        .trust-badge-item .icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
        }

        .trust-badge-item.success .icon {
            background: var(--primary-light);
            color: var(--primary-color);
        }

        .trust-badge-item.warning .icon {
            background: #fff5e6;
            color: var(--primary-color);
        }

        /* Navigation Buttons */
        .btn-primary {
            background: var(--primary-color);
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }

        .btn-light {
            background: #f3f4f6;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            color: var(--text-dark);
            transition: all 0.3s ease;
        }

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

        /* Participant Form Styling */
        .participant-form {
            background: #f9fafb;
            padding: 1.5rem;
            border-radius: 12px;
            margin-bottom: 1.5rem;
            border: 1px solid var(--border-color);
        }

        .participant-form .participant-title {
            color: var(--text-dark);
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
        }

        /* Form Section */
        .form-section {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            margin-top: 1.5rem;
        }

        /* Switch Toggle */
        .form-switch .form-check-input {
            width: 3em;
            height: 1.5em;
            margin-top: 0.25em;
        }

        .form-switch .form-check-input:checked {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }

        /* Modal Styling */
        .modal-content {
            border-radius: 12px;
            border: none;
        }

        .modal-header {
            border-bottom: 1px solid var(--border-color);
            padding: 1.5rem;
        }

        .modal-body {
            padding: 1.5rem;
        }

        /* Links */
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        a:hover {
            color: var(--primary-hover);
        }

        /* Text Primary */
        .text-primary {
            color: var(--primary-color) !important;
        }

        .bg-primary-subtle {
            background-color: var(--primary-light) !important;
        }

        /* Responsive Adjustments */
        @media (max-width: 768px) {
            .address-cards {
                grid-template-columns: 1fr;
            }

            .stepper-wrapper {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }

            .stepper-item {
                width: 100%;
            }

            .stepper-item::before,
            .stepper-item::after {
                display: none;
            }
        }