/* Checkout Page Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #FF6B35;
    --secondary-color: #F7931E;
    --accent-color: #FDB750;
    --dark-color: #1a1a1a;
    --light-color: #f5f5f5;
    --text-color: #333;
    --border-color: #ddd;
    --success-color: #27AE60;
    --error-color: #E74C3C;
}

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

.checkout-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.checkout-header {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.back-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--secondary-color);
}

.checkout-header h1 {
    text-align: center;
    flex: 1;
    font-size: 2rem;
    color: var(--dark-color);
}

/* Layout */
.checkout-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

/* Order Summary */
.order-summary-section {
    display: flex;
    flex-direction: column;
}

.order-summary {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    position: sticky;
    top: 20px;
}

.order-summary h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 1rem;
}

.product-item {
    display: flex;
    justify-content: space-between;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.product-details h3 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 0.3rem;
}

.product-details p {
    font-size: 0.9rem;
    color: #666;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.summary-breakdown {
    margin: 1.5rem 0;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    color: #666;
}

.breakdown-row.total {
    border-top: 2px solid var(--border-color);
    padding-top: 1rem;
    margin-top: 1rem;
    font-weight: 700;
    color: var(--dark-color);
    font-size: 1.2rem;
}

.trust-badges {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.badge {
    text-align: center;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: 8px;
    font-size: 0.85rem;
}

.badge-icon {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.guarantee-message {
    background: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.guarantee-message h4 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.guarantee-message p {
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Checkout Form */
.checkout-form-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h3 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.form-group small {
    font-size: 0.85rem;
    color: #999;
    margin-top: 0.3rem;
}

.form-group input,
.form-group select {
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-group input.error,
.form-group select.error {
    border-color: var(--error-color);
}

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

/* Payment Options */
.payment-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.payment-option {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.payment-option input[type="radio"] {
    margin-top: 0.3rem;
    cursor: pointer;
    width: auto;
    margin: 0;
}

.payment-option input[type="radio"]:checked + .payment-label {
    color: var(--primary-color);
}

.payment-option:has(input[type="radio"]:checked) {
    border-color: var(--primary-color);
    background-color: rgba(255, 107, 53, 0.05);
}

.payment-label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
}

.payment-title {
    font-weight: 600;
    color: var(--dark-color);
}

.payment-icons {
    font-size: 0.85rem;
    color: #666;
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.2rem;
    cursor: pointer;
    width: auto;
    accent-color: var(--primary-color);
}

.checkbox-group label {
    font-size: 0.95rem;
    color: #666;
    cursor: pointer;
    margin: 0;
    line-height: 1.4;
}

.checkbox-group a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-group a:hover {
    text-decoration: underline;
}

/* Submit Button */
.btn-submit {
    background: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loader {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-submit.loading .btn-loader {
    display: block;
}

.btn-submit.loading .btn-text {
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.payment-security {
    text-align: center;
    font-size: 0.85rem;
    color: #999;
    margin-top: 1rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.success-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: 1rem;
    animation: pulse 0.6s ease;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.modal-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.modal-content p {
    font-size: 1rem;
    color: #666;
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.modal-btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1.5rem;
    transition: background-color 0.3s;
}

.modal-btn:hover {
    background-color: var(--secondary-color);
}

/* External Payment Info */
.external-payment-info {
    text-align: center;
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 8px;
    color: #666;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .checkout-wrapper {
        grid-template-columns: 1fr;
    }

    .order-summary {
        position: relative;
        top: auto;
    }
}

@media (max-width: 768px) {
    .checkout-container {
        padding: 15px;
    }

    .checkout-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1.5rem;
    }

    .checkout-header h1 {
        flex: unset;
        font-size: 1.5rem;
    }

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

    .trust-badges {
        grid-template-columns: 1fr;
    }

    .btn-submit {
        padding: 0.8rem;
        font-size: 0.95rem;
    }

    .order-summary,
    .checkout-form-section {
        padding: 1.5rem;
    }

    .form-section h3 {
        font-size: 1.1rem;
    }

    .form-group label {
        font-size: 0.95rem;
    }

    .form-group input,
    .form-group select {
        padding: 0.7rem;
        font-size: 0.95rem;
    }

    .payment-option {
        padding: 0.8rem;
        gap: 0.8rem;
    }

    .payment-title {
        font-size: 0.95rem;
    }

    .payment-icons {
        font-size: 0.8rem;
    }

    .order-summary h2 {
        font-size: 1.3rem;
    }

    .product-details h3 {
        font-size: 1rem;
    }

    .product-price {
        font-size: 1.2rem;
    }

    .guarantee-message {
        padding: 1rem;
    }

    .guarantee-message h4 {
        font-size: 0.95rem;
    }

    .guarantee-message p {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .checkout-container {
        padding: 10px;
    }

    .checkout-header {
        padding: 1rem;
        gap: 0.5rem;
    }

    .checkout-header h1 {
        font-size: 1.2rem;
    }

    .back-link {
        font-size: 0.9rem;
    }

    .order-summary,
    .checkout-form-section {
        padding: 1rem;
    }

    .form-section {
        padding-bottom: 1rem;
    }

    .form-section h3 {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    .form-group label {
        font-size: 0.9rem;
        margin-bottom: 0.4rem;
    }

    .form-group input,
    .form-group select {
        padding: 0.6rem;
        font-size: 0.95rem;
    }

    .form-group small {
        font-size: 0.8rem;
    }

    .payment-option {
        padding: 0.7rem;
        gap: 0.7rem;
        margin-bottom: 0.8rem;
    }

    .payment-title {
        font-size: 0.9rem;
    }

    .payment-icons {
        font-size: 0.75rem;
    }

    .checkbox-group {
        gap: 0.6rem;
        margin-bottom: 0.8rem;
    }

    .checkbox-group label {
        font-size: 0.9rem;
        line-height: 1.3;
    }

    .checkbox-group a {
        word-break: break-word;
    }

    .btn-submit {
        padding: 0.75rem;
        font-size: 0.9rem;
        margin-top: 0.8rem;
    }

    .payment-security {
        font-size: 0.8rem;
        margin-top: 0.8rem;
    }

    .product-details h3 {
        font-size: 0.95rem;
    }

    .product-details p {
        font-size: 0.8rem;
    }

    .product-price {
        font-size: 1.1rem;
    }

    .breakdown-row {
        font-size: 0.9rem;
    }

    .breakdown-row.total {
        font-size: 1rem;
    }

    .badge {
        padding: 0.8rem;
        font-size: 0.8rem;
    }

    .badge-icon {
        font-size: 1.3rem;
    }

    .trust-badges {
        gap: 0.7rem;
    }

    .guarantee-message {
        padding: 1rem;
        margin-top: 1.5rem;
    }

    .guarantee-message h4 {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .guarantee-message p {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .modal-content {
        padding: 1.5rem 1rem;
        max-width: 90%;
    }

    .success-icon {
        font-size: 2.5rem;
    }

    .modal-content h2 {
        font-size: 1.3rem;
    }

    .modal-content p {
        font-size: 0.9rem;
    }

    .modal-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}