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

        input[type="radio"],
        input[type="checkbox"] {
            accent-color: #1a1a1a;
        }

        /* Ödeme farkı satırı - varsayılan olarak gizli */
        #priceDiffRow {
            display: none;
        }

        #priceDiffRow.payment-diff-visible {
            display: flex !important;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f5f5;
            color: #333;
            line-height: 1.6;
            margin: 0;
            padding: 0;
        }

        .checkout-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 100vh;
        }

        .checkout-left {
            background: #fff;
            display: flex;
            justify-content: flex-end;
        }

        .checkout-right {
            background: #f4f4f4;
            display: flex;
            justify-content: flex-start;
        }

        .checkout-main {
            background: #fff;
            padding: 20px 30px;
            width: 100%;
            max-width: 570px;
        }

        .checkout-sidebar {
            background: #f4f4f4;
            padding: 40px;
            width: 100%;
            max-width: 570px;
            display: flex;
            flex-direction: column;
        }

        .checkout-top-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 5px;
            padding-bottom: 5px;
            border-bottom: 1px solid #e5e5e5;
        }

        .checkout-logo {
            max-height: 40px;
            width: auto;
        }

        .checkout-login-link {
            font-size: 14px;
            color: #666;
        }

        .checkout-login-link a {
            color: #333;
            text-decoration: underline;
        }

        .checkout-sidebar {
            background: transparent;
            padding: 40px;
            height: 100%;
            min-height: 100%;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .sidebar-footer {
            margin-top: auto;
            padding-top: 30px;
            text-align: center;
            font-size: 12px;
            color: #999;
        }

        .sidebar-footer a {
            color: #666;
            text-decoration: none;
            margin: 0 10px;
            display: inline-block;
            margin-bottom: 10px;
        }

        .sidebar-footer a:hover {
            color: #333;
        }

        .powered-by {
            margin-top: 1px !important;
            color: #666;
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            letter-spacing: -0.5px;
        }

        .accordion-step-header {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 20px 0;
            border-bottom: 1px solid #e5e5e5;
            cursor: default;
            color: #999;
            transition: all 0.3s ease;
        }

        .accordion-step-header.active {
            color: #333;
            border-bottom: none;
            padding-bottom: 10px;
        }

        .accordion-step-header.completed {
            cursor: pointer;
            color: #333;
        }

        .accordion-step-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #ffffff;
            border: 1px solid #d5d5d5;
            color: #999;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .accordion-step-header.active .accordion-step-number {
            background: #333;
            color: #fff;
            border-color: #333;
        }

        .accordion-step-header.completed .accordion-step-number {
            background: #1a1a1a;
            color: transparent;
            position: relative;
            border-color: #1a1a1a;
        }

        .accordion-step-header.completed .accordion-step-number::after {
            content: '\f00c';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            color: #fff;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            font-size: 14px;
        }

        .accordion-step-title {
            font-size: 18px;
            font-weight: 500;
        }

        .accordion-step-content {
            display: none;
            padding-left: 0;
            padding-bottom: 30px;
            margin-top: 15px;
            border-bottom: 1px solid #e5e5e5;
            animation: fadeIn 0.3s ease-in-out;
        }

        #content-step2,
        #content-step3 {
            padding-left: 0;
            padding-top: 20px;
        }

        .checkout-step.active .accordion-step-content {
            display: block;
        }

        .shipping-option,
        .payment-option {
            border: 1px solid #e5e5e5;
            border-radius: 8px;
            padding: 16px;
            margin-bottom: 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all 0.2s;
            background: #fff;
            position: relative;
        }

        .payment-methods-list .payment-method-container {
            margin-bottom: -1px;
        }

        .payment-methods-list .payment-method-container .payment-option {
            border-radius: 0;
            margin-bottom: 0 !important;
        }

        .payment-methods-list .payment-method-container:first-child .payment-option {
            border-top-left-radius: 8px;
            border-top-right-radius: 8px;
        }

        .payment-methods-list .payment-method-container:last-child .payment-option {
            border-bottom-left-radius: 8px;
            border-bottom-right-radius: 8px;
        }

        .payment-option.selected {
            z-index: 2;
        }

        .shipping-option.selected {
            border: 2px solid #1a1a1a !important;
        }

        .payment-option.selected {
            border: 1px solid #d5d5d5 !important;
            background: #f0fdf0 !important;
        }

        .shipping-option-left,
        .payment-option-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .shipping-radio,
        .payment-radio {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 1px solid #d1d5db;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            transition: all 0.2s;
        }

        .shipping-option.selected .shipping-radio,
        .payment-option.selected .payment-radio {
            background: #1a1a1a;
            border-color: #1a1a1a;
        }

        .shipping-radio i,
        .payment-radio i {
            color: #d1d5db;
            font-size: 10px;
            display: block;
            transition: all 0.2s;
        }

        .shipping-option.selected .shipping-radio i,
        .payment-option.selected .payment-radio i {
            color: white;
        }

        .shipping-company,
        .payment-company {
            font-weight: 500;
            color: #1a1a1a;
            font-size: 15px;
        }

        .shipping-price {
            font-weight: 600;
            color: #1a1a1a;
            font-size: 15px;
        }

        .section-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 20px;
            color: #333;
        }

        .form-group {
            margin-bottom: 12px;
            position: relative;
        }

        .form-label {
            display: block;
            font-size: 13px;
            color: #666;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #d9d9d9;
            border-radius: 8px;
            font-size: 15px;
            color: #000;
            font-weight: 500;
            transition: all 0.2s;
            box-shadow: none;
        }

        .form-control:focus {
            outline: none;
            border-color: #333;
        }

        .onsite-input {
            background-color: #ffffff !important;
            border: 1px solid #d1d5db !important;
        }

        .onsite-input::placeholder {
            text-transform: capitalize;
        }

        /* Floating Label Styles */
        .floating-wrapper .form-control {
            padding: 20px 15px 4px 15px !important;
            height: 48px !important;
        }

        .floating-label {
            position: absolute;
            top: 14px;
            left: 15px;
            font-size: 14px;
            color: #6b7280;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 5;
            background: transparent;
        }

        .floating-wrapper .form-control:focus~.floating-label,
        .floating-wrapper .form-control:not(:placeholder-shown)~.floating-label {
            top: 4px;
            font-size: 11px;
            color: #6b7280;
        }


        .form-control.error {
            border-color: #ef4444;
            background-color: #fef2f2;
        }

        .form-control.success {
            border-color: #10b981;
            background-color: #f0fdf4;
        }

        .error-message {
            color: #ef4444;
            font-size: 12px;
            margin-top: 5px;
            display: none;
            font-weight: 500;
        }

        .error-message.show {
            display: block;
        }

        /* Success mesajları için */
        .form-control.success+.error-message {
            color: #10b981;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin: 8px 0;
        }

        .checkbox-group input[type="checkbox"] {
            margin-top: 3px;
            cursor: pointer;
            width: 18px;
            height: 18px;
        }

        .checkbox-group label {
            font-size: 14px;
            color: #666;
            line-height: 1.5;
            cursor: pointer;
        }

        .checkbox-group label a {
            color: #333;
            font-weight: 500;
        }

        .checkbox-group label a:hover {
            color: #000;
        }

        textarea.form-control {
            resize: vertical;
            min-height: 80px;
            font-family: inherit;
        }

        .discount-code {
            display: flex;
            gap: 10px;
            margin: 20px 0;
        }

        .order-summary-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 15px 0;
            border-bottom: 1px solid #f0f0f0;
        }

        .item-image {
            width: 64px;
            height: 64px;
            object-fit: cover;
            border-radius: 10px;
            background: #f8f8f8;
            border: 1px solid #eaeaea;
            padding: 2px;
            position: relative;
        }

        .item-badge {
            position: absolute;
            top: -6px;
            right: -6px;
            background: #000;
            color: #fff;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
            border: 2px solid #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .item-details {
            flex: 1;
        }

        .item-name {
            font-size: 15px;
            color: #333;
            margin-bottom: 0px;
            line-height: 1.2;
        }

        .item-variant {
            font-size: 12px;
            color: #999;
        }

        .item-price {
            font-size: 14px;
            font-weight: 500;
            color: #333;
        }

        .summary-row {
            display: flex;
            justify-content: space-between;
            padding: 5px 0;
            font-size: 16px;
        }

        .summary-row.total {
            font-size: 16px;
            font-weight: 600;
            padding-top: 15px;
            border-top: 1px solid #e5e5e5;
            margin-top: 10px;
        }

        .btn-primary {
            width: 100%;
            padding: 18px;
            background: #333;
            color: #fff;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
        }

        .btn-primary:hover {
            background: #000;
        }

        .btn-secondary {
            padding: 12px 20px;
            background: #f5f5f5;
            color: #333;
            border: none;
            border-radius: 4px;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s;
        }

        .btn-secondary:hover {
            background: #e5e5e5;
        }

        .checkout-step {
            animation: fadeIn 0.3s ease-in-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulse {
            0% {
                transform: scale(1);
            }

            50% {
                transform: scale(1.05);
            }

            100% {
                transform: scale(1);
            }
        }

        .payment-methods {
            margin: 20px 0;
        }

        .payment-option {
            border: 1px solid #d9d9d9;
            border-radius: 4px;
            padding: 15px;
            margin-bottom: 12px;
            cursor: pointer;
            transition: all 0.2s;
        }

        .payment-option:hover {
            border-color: #333;
        }

        .payment-option.selected {
            border: 1px solid #d5d5d5 !important;
            background: #f0fdf0 !important;
        }

        .payment-radio {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .payment-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f5f5f5;
            border-radius: 4px;
        }

        .bank-details {
            margin-top: 15px;
            padding: 15px;
            background: #f9f9f9;
            border-radius: 4px;
            font-size: 13px;
        }

        .bank-info {
            margin-bottom: 10px;
        }

        .bank-info strong {
            display: block;
            margin-bottom: 5px;
            color: #333;
        }

        select.form-control {
            cursor: pointer;
            background: #fff;
        }

        /* Adres Kartları - Premium UI */
        .address-card {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            padding: 24px;
            border: 2px solid transparent;
            border-radius: 12px;
            margin-bottom: 16px;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            background: #ffffff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03), 0 1px 3px rgba(0, 0, 0, 0.02);
            border: 1px solid #f3f4f6;
        }

        .address-card:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06), 0 4px 10px rgba(0, 0, 0, 0.04);
            transform: translateY(-2px);
            border-color: #e5e7eb;
        }

        .address-card.selected {
            border: 2px solid #7c3aed;
            background: #fcfaff;
            box-shadow: 0 10px 25px rgba(124, 58, 237, 0.1);
            padding: 23px;
            /* To compensate for the 2px border vs 1px border */
        }

        .address-card input[type="radio"] {
            display: none;
            /* Hide default radio button */
        }

        .address-content {
            flex: 1;
        }

        .address-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }

        .address-header strong {
            font-size: 16px;
            color: #111827;
            font-weight: 700;
        }

        .badge-default {
            background: rgba(124, 58, 237, 0.1);
            color: #7c3aed;
            font-size: 10px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .address-info {
            font-size: 14px;
            color: #4b5563;
            line-height: 1.6;
        }

        .address-info i {
            color: #9ca3af;
            margin-right: 6px;
            font-size: 12px;
        }

        .address-check {
            position: absolute;
            top: 24px;
            right: 24px;
            font-size: 24px;
            color: #e5e7eb;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .address-card.selected .address-check {
            color: #7c3aed;
            transform: scale(1.1);
        }

        /* Payment Method Styling */
        .payment-option {
            transition: all 0.2s ease;
        }

        .payment-option:hover {
            border-color: #cbd5e1;
            background: #f9fafb;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .payment-option input[type="radio"]:checked+.payment-icon+div+.payment-check {
            background: #10b981;
            border-color: #10b981;
        }

        .payment-option input[type="radio"]:checked+.payment-icon+div+.payment-check i {
            display: block !important;
        }

        .payment-option input[type="radio"]:checked~* {
            /* Seçili ödeme yönteminin tüm içeriğini vurgula */
        }

        .payment-option:has(input[type="radio"]:checked) {
            border: 1px solid #d5d5d5 !important;
            background: #f0fdf0 !important;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }

        .payment-icon {
            transition: all 0.2s;
        }

        .payment-option:has(input[type="radio"]:checked) .payment-icon {
            background: #f8fafc !important;
        }

        /* Onsite Bank Form Standard UI: Radio ve İkonu Gizle */
        .payment-option.onsite-active input[type="radio"],
        .payment-option.onsite-active .payment-icon {
            display: none !important;
        }

        .payment-option.onsite-active .payment-check {
            display: flex !important;
        }

        /* Responsive Design - Mobile */
        @media (max-width: 768px) {
            .checkout-wrapper {
                grid-template-columns: 1fr;
            }

            .checkout-left,
            .checkout-right {
                justify-content: center;
            }

            .checkout-main {
                max-width: 100%;
                padding: 20px;
            }

            .checkout-sidebar {
                max-width: 100%;
                padding: 20px;
                height: auto !important;
                min-height: auto !important;
            }

            .checkout-top-bar {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }

            .checkout-login-link {
                font-size: 13px;
            }

            .step-indicator {
                gap: 8px;
                overflow-x: auto;
            }

            .step {
                font-size: 13px;
                white-space: nowrap;
            }

            .step-number {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }

            .section-title {
                font-size: 18px;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .form-control {
                padding: 12px 14px;
                font-size: 14px;
            }
        }

        /* On-site Bank Form Premium Styles */
        .onsite-bank-form {
            overflow: hidden;
            animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            border: 1px solid #e5e5e5 !important;
            border-top: none !important;
            background: #f4f4f4 !important;
            box-shadow: none;
            margin-top: 0;
            margin-bottom: 0;
            padding: 24px;
            border-radius: 0;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
                max-height: 0;
            }

            to {
                opacity: 1;
                transform: translateY(0);
                max-height: 500px;
            }
        }

        .onsite-bank-form .form-label-small {
            font-size: 12px;
            font-weight: 600;
            color: #64748b;
            margin-bottom: 8px;
            display: block;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .onsite-bank-form .form-control {
            border: 1.5px solid #e2e8f0;
            background: #f8fafc;
            border-radius: 8px;
            padding: 14px 16px;
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .onsite-bank-form .form-control:focus {
            border-color: #10b981;
            background: #fff;
            box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
            outline: none;
        }

        .onsite-bank-form .form-control.invalid {
            border-color: #ef4444 !important;
            background: #fef2f2 !important;
        }

        .onsite-bank-form .form-control.valid {
            border-color: #10b981 !important;
        }

        .bank-logo-overlay {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            height: 20px;
            width: auto;
            pointer-events: none;
            display: none;
        }

        .onsite-bank-form .card-number-wrapper input {
            padding-left: 16px;
            /* Default */
            transition: padding 0.3s ease;
        }

        .onsite-bank-form .card-number-wrapper.has-bank input {
            padding-left: 55px;
            /* Adjust for logo */
        }

        .card-number-wrapper {
            position: relative;
        }

        .card-type-icon {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 20px;
            color: #94a3b8;
            pointer-events: none;
        }

        .auth-logo-img {
            max-height: 100px;
            max-width: 250px;
        }