/* =====================================================
   CHECKOUT - DISEÑO ULTRA MODERNO 2025
   ===================================================== */

/* Header Checkout */
.checkout-header {
    background: white;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.checkout-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.checkout-steps {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkout-steps .step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg);
    transition: var(--transition);
}

.checkout-steps .step.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.checkout-steps .step.completed {
    background: var(--success);
    color: white;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary);
    gap: 12px;
}

/* Main Checkout */
.checkout-main {
    padding: 48px 0;
    min-height: calc(100vh - 200px);
    background: var(--bg);
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: start;
}

/* Form Container */
.checkout-form-container {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow);
}

.form-section {
    margin-bottom: 40px;
}

.form-section:last-of-type {
    margin-bottom: 32px;
}

.form-section h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-light);
}

.form-section h2 i {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Payment Methods */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.payment-option {
    cursor: pointer;
}

.payment-option input {
    display: none;
}

.payment-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    background: white;
}

.payment-option input:checked + .payment-card {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(99, 102, 241, 0.02));
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.payment-card:hover {
    border-color: var(--primary-light);
}

.payment-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.payment-icon.transfer {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
}

.payment-icon.card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.payment-info {
    flex: 1;
}

.payment-info strong {
    display: block;
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 4px;
}

.payment-info span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.payment-discount {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white !important;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem !important;
    font-weight: 700;
}

.payment-check {
    font-size: 1.5rem;
    color: transparent;
    transition: var(--transition);
}

.payment-option input:checked + .payment-card .payment-check {
    color: var(--primary);
}

/* Payment Details */
.payment-details {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.payment-details h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
}

.bank-info {
    background: white;
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.bank-info p {
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: var(--text-light);
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}

.bank-info p:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.bank-info strong {
    color: var(--text);
}

/* Comprobante Upload */
.comprobante-upload {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 2px solid var(--border-light);
}

.comprobante-upload h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.comprobante-upload h4 i {
    color: var(--primary);
}

.upload-note {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 16px;
}

.file-upload-container {
    position: relative;
}

.file-upload-container input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 32px 24px;
    border: 2px dashed var(--primary);
    border-radius: var(--radius-lg);
    background: rgba(99, 102, 241, 0.05);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.file-upload-label:hover {
    background: rgba(99, 102, 241, 0.1);
    border-style: solid;
}

.file-upload-label i {
    font-size: 2.5rem;
    color: var(--primary);
}

.file-upload-label span {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

.file-preview {
    margin-top: 16px;
    display: none;
}

.file-preview.active {
    display: block;
}

.file-preview-content {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.file-preview-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--success), #059669);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.file-preview-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius);
}

.file-preview-info {
    flex: 1;
}

.file-preview-name {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    word-break: break-all;
}

.file-preview-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-preview-remove {
    padding: 8px 16px;
    background: var(--danger);
    color: white;
    border-radius: var(--radius);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.file-preview-remove:hover {
    background: #dc2626;
}

.payment-note {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--primary);
    padding: 12px 16px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius);
}

/* Card Form - Nuevo */
.card-form {
    margin-top: 24px;
    padding: 24px;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.card-preview {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #6B8DD6 100%);
    border-radius: 16px;
    padding: 24px;
    margin: 0 auto 32px;
    position: relative;
    width: 100%;
    max-width: 380px;
    aspect-ratio: 1.586 / 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 25px 50px rgba(0,0,0,0.4);
    overflow: hidden;
}

.card-preview::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.card-preview::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.card-chip {
    width: 50px;
    height: 40px;
    background: linear-gradient(135deg, #ffd700 0%, #ffb300 50%, #b8860b 100%);
    border-radius: 8px;
    position: relative;
    z-index: 2;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.card-chip::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 5px;
    right: 5px;
    height: 1px;
    background: rgba(0,0,0,0.15);
}

.card-chip::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 5px;
    bottom: 5px;
    width: 1px;
    background: rgba(0,0,0,0.15);
}

.card-number-display {
    font-size: 1.6rem;
    font-weight: 500;
    letter-spacing: 3px;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    font-family: 'Courier New', Consolas, monospace;
    position: relative;
    z-index: 2;
}

.card-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    position: relative;
    z-index: 2;
}

.card-holder {
    color: rgba(255,255,255,0.6);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-holder-name {
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-expiry {
    text-align: right;
}

.card-expiry-label {
    color: rgba(255,255,255,0.6);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-expiry-value {
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 4px;
    letter-spacing: 1px;
}

.card-inputs {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 1;
    width: 100%;
    box-sizing: border-box;
}

.card-input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-input-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-input-group input {
    padding: 14px 16px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    font-size: 1rem;
    background: rgba(255,255,255,0.1);
    color: white;
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
}

.card-input-group input::placeholder {
    color: rgba(255,255,255,0.4);
}

.card-input-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255,255,255,0.15);
}

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

/* Cuotas Select */
.cuotas-container {
    margin-top: 20px;
}

.cuotas-container label {
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 8px;
}

.cuotas-container select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    font-size: 1rem;
    background: rgba(255,255,255,0.1);
    color: white;
    cursor: pointer;
}

.cuotas-container select option {
    background: var(--secondary);
    color: white;
}

/* Card Type Selector (Debito/Credito) */
.card-type-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 8px;
    width: 100%;
    max-width: 100%;
}

.card-type-option {
    cursor: pointer;
}

.card-type-option input {
    display: none;
}

.card-type-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    background: rgba(255,255,255,0.05);
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
    font-weight: 500;
}

.card-type-option input:checked + .card-type-card {
    border-color: var(--accent);
    background: rgba(6, 182, 212, 0.2);
    color: white;
}

.card-type-card:hover {
    border-color: rgba(255,255,255,0.4);
}

.card-type-card i {
    font-size: 1.2rem;
}

/* Cuotas Detail Box */
.cuotas-detail {
    margin-top: 16px;
    padding: 20px;
    background: linear-gradient(135deg, var(--success), #059669);
    border-radius: var(--radius);
    color: white;
}

.cuotas-info {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 8px;
}

.cuotas-qty {
    font-size: 0.9rem;
    opacity: 0.9;
}

.cuotas-price {
    font-size: 1.5rem;
    font-weight: 700;
}

.cuotas-total {
    font-size: 0.85rem;
    opacity: 0.85;
    padding-top: 8px;
    border-top: 1px solid rgba(255,255,255,0.2);
}

/* Card Brands con imagenes */
.card-brands {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.card-brands img {
    height: 28px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.7;
    transition: var(--transition);
}

.card-brands img:hover {
    opacity: 1;
}

/* Summary Sidebar */
.checkout-summary {
    position: sticky;
    top: 100px;
}

.summary-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.summary-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-light);
}

.summary-items {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 24px;
}

.summary-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-item-image {
    width: 64px;
    height: 64px;
    background: var(--bg);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.summary-item-image img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.summary-item-info {
    flex: 1;
}

.summary-item-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.summary-item-qty {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.summary-item-price {
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.summary-totals {
    padding-top: 16px;
    border-top: 2px solid var(--border-light);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.summary-row.discount {
    color: var(--success);
    font-weight: 500;
}

.summary-row.total {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    padding-top: 16px;
    border-top: 2px dashed var(--border);
    margin-top: 16px;
}

.summary-secure {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
    padding: 16px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
    border-radius: var(--radius);
    color: var(--success);
    font-weight: 600;
}

.summary-secure i {
    font-size: 1.25rem;
}

/* Help Card */
.help-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow);
    text-align: center;
}

.help-card h4 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1rem;
    color: var(--secondary);
    margin-bottom: 8px;
}

.help-card h4 i {
    color: var(--primary);
}

.help-card p {
    color: var(--text-light);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

/* Footer Checkout */
.checkout-footer {
    background: var(--secondary);
    color: white;
    padding: 24px 0;
    text-align: center;
}

.checkout-footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.checkout-footer p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

/* Success Modal */
.success-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 95%;
    max-width: 480px;
    background: white;
    border-radius: var(--radius-xl);
    z-index: 1301;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    overflow: hidden;
}

.success-modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.success-content {
    padding: 48px 32px;
    text-align: center;
}

.success-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--success), #059669);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 3rem;
    color: white;
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

.success-content h2 {
    font-size: 1.75rem;
    color: var(--secondary);
    margin-bottom: 16px;
}

.success-content p {
    color: var(--text-light);
    margin-bottom: 12px;
    line-height: 1.6;
}

.success-actions {
    margin-top: 32px;
}

/* RESPONSIVE */
@media (max-width: 992px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }
    
    .checkout-summary {
        position: static;
    }
    
    .checkout-header .container {
        flex-wrap: wrap;
    }
    
    .checkout-steps {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 16px;
    }
}

@media (max-width: 768px) {
    .checkout-form-container {
        padding: 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .card-form {
        padding: 16px;
    }
    
    .card-preview {
        max-width: 100%;
        width: 100%;
        padding: 18px;
    }
    
    .card-number-display {
        font-size: 1.15rem;
        letter-spacing: 2px;
    }
    
    .card-holder-name,
    .card-expiry-value {
        font-size: 0.85rem;
    }
    
    .card-chip {
        width: 42px;
        height: 32px;
    }
    
    .card-type-selector {
        gap: 8px;
    }
    
    .card-type-card {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .card-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .checkout-steps .step {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .back-link span {
        display: none;
    }
    
    .checkout-footer .container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .checkout-form-container {
        padding: 12px;
    }
    
    .card-form {
        padding: 12px;
    }
    
    .card-preview {
        padding: 14px;
    }
    
    .card-number-display {
        font-size: 0.95rem;
        letter-spacing: 1px;
    }
    
    .card-holder-name,
    .card-expiry-value {
        font-size: 0.75rem;
    }
    
    .card-holder,
    .card-expiry-label {
        font-size: 0.55rem;
    }
    
    .card-chip {
        width: 32px;
        height: 24px;
    }
    
    .card-type-selector {
        gap: 8px;
    }
    
    .card-type-card {
        padding: 10px 6px;
        font-size: 0.8rem;
        gap: 6px;
    }
    
    .card-type-card i {
        font-size: 1rem;
    }
    
    .card-input-group input {
        padding: 12px;
        font-size: 0.95rem;
    }
    
    .card-input-group label {
        font-size: 0.75rem;
    }
    
    .card-row {
        gap: 10px;
    }
}