/* ============================================
   KI BARATO CHECKOUT - MAIN STYLES
   ============================================ */

/* ============================================
   LAYOUT
   ============================================ */

.checkout-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-4) 0;
}

.checkout-header {
    text-align: center;
    margin-bottom: var(--spacing-6);
}

.checkout-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.checkout-logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.checkout-logo-text {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.checkout-tagline {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============================================
   PRODUCT SUMMARY
   ============================================ */

.product-summary {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.product-image {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-image svg {
    width: 32px;
    height: 32px;
    color: var(--text-primary);
}

.product-info {
    flex: 1;
    min-width: 0;
}

.product-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
}

.product-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.product-price {
    text-align: right;
}

.product-price-value {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-success);
}

.product-price-value .billing-period {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--text-secondary);
}

.product-price-period {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* ============================================
   CHECKOUT STEPS
   ============================================ */

.checkout-content {
    flex: 1;
}

.checkout-step {
    display: none;
}

.checkout-step.active {
    display: block;
    animation: slideUp 0.4s ease-out;
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.step-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
}

/* ============================================
   PAYMENT METHODS
   ============================================ */

.payment-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.payment-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background: var(--bg-glass);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-base);
}

.payment-method:hover {
    border-color: var(--border-color-hover);
    background: var(--bg-glass-hover);
    transform: translateY(-2px);
}

.payment-method.selected {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.1);
}

.payment-method-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.payment-method-icon.pix {
    background: linear-gradient(135deg, #5EBF26 0%, #4B7A67 100%);
}

.payment-method-icon.credit-card {
    background: linear-gradient(135deg, #61BDC4 0%, #4B7A67 100%);
}

.payment-method-icon.boleto {
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
}

.payment-method-icon svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

.payment-method-info {
    flex: 1;
}

.payment-method-name {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
}

.payment-method-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.payment-method-badge {
    margin-left: auto;
}

/* Radio indicator */
.payment-method::after {
    content: '';
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.payment-method.selected::after {
    border-color: var(--color-primary);
    background: var(--color-primary);
    box-shadow: inset 0 0 0 4px var(--bg-primary);
}

/* ============================================
   CREDIT CARD FORM
   ============================================ */

.card-preview {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    position: relative;
    overflow: hidden;
    min-height: 180px;
}

.card-preview::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.card-preview-chip {
    width: 40px;
    height: 30px;
    background: linear-gradient(135deg, #d4af37 0%, #c5a028 100%);
    border-radius: 6px;
    margin-bottom: var(--spacing-6);
}

.card-preview-number {
    font-size: var(--font-size-xl);
    font-family: 'Courier New', monospace;
    letter-spacing: 3px;
    margin-bottom: var(--spacing-4);
    word-spacing: 10px;
}

.card-preview-footer {
    display: flex;
    justify-content: space-between;
}

.card-preview-name {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-preview-expiry {
    font-size: var(--font-size-sm);
    font-family: 'Courier New', monospace;
}

.card-brand {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    opacity: 0.8;
}

/* Installments */
.installments-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2);
    max-height: 300px;
    overflow-y: auto;
    padding-right: var(--spacing-2);
}

.installment-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.installment-option:hover {
    border-color: var(--border-color-hover);
    background: var(--bg-glass-hover);
}

.installment-option.selected {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.1);
}

.installment-option input {
    display: none;
}

.installment-label {
    font-weight: var(--font-weight-medium);
}

.installment-total {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============================================
   PIX PAYMENT
   ============================================ */

.pix-container {
    text-align: center;
}

.pix-qrcode {
    background: white;
    padding: var(--spacing-4);
    border-radius: var(--radius-xl);
    display: inline-block;
    margin-bottom: var(--spacing-4);
}

.pix-qrcode img {
    width: 200px;
    height: 200px;
}

.pix-expiry {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
}

.pix-timer {
    font-weight: var(--font-weight-semibold);
    color: var(--color-warning);
}

.pix-code {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.pix-code-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pix-code-value {
    font-size: var(--font-size-xs);
    font-family: monospace;
    word-break: break-all;
    color: var(--text-secondary);
    max-height: 60px;
    overflow: hidden;
}

/* ============================================
   BOLETO PAYMENT
   ============================================ */

.boleto-container {
    text-align: center;
}

.boleto-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
}

.boleto-icon svg {
    width: 40px;
    height: 40px;
    color: var(--text-secondary);
}

.boleto-info {
    margin-bottom: var(--spacing-4);
}

.boleto-barcode {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.boleto-barcode-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.boleto-barcode-value {
    font-size: var(--font-size-sm);
    font-family: monospace;
    word-break: break-all;
    color: var(--text-primary);
}

/* ============================================
   SUCCESS / CONFIRMATION
   ============================================ */

.success-container {
    text-align: center;
    padding: var(--spacing-8) 0;
}

.success-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    animation: scaleIn 0.5s ease-out;
    box-shadow: 0 0 40px rgba(94, 191, 38, 0.4);
}

.success-icon svg {
    width: 50px;
    height: 50px;
    color: var(--text-primary);
}

.success-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.success-message {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
}

.success-details {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    text-align: left;
    margin-bottom: var(--spacing-6);
}

.success-detail-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-2) 0;
    border-bottom: 1px solid var(--border-color);
}

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

.success-detail-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.success-detail-value {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
}

/* ============================================
   CHECKOUT FOOTER
   ============================================ */

.checkout-footer {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.secure-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.secure-badge svg {
    width: 16px;
    height: 16px;
    color: var(--color-success);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    margin-top: var(--spacing-3);
}

.footer-link {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

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

/* ============================================
   NAVIGATION BUTTONS
   ============================================ */

.checkout-nav {
    display: flex;
    gap: var(--spacing-3);
    margin-top: var(--spacing-6);
}

.checkout-nav .btn {
    flex: 1;
}

/* ============================================
   LOADING STATE
   ============================================ */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 35, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    gap: var(--spacing-4);
}

.loading-overlay .spinner {
    width: 50px;
    height: 50px;
}

.loading-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ============================================
   WAITING FOR PAYMENT
   ============================================ */

.waiting-payment {
    text-align: center;
    padding: var(--spacing-4) 0;
}

.waiting-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-4);
    animation: pulse 2s infinite;
}

.waiting-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
}

.waiting-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 480px) {
    .checkout-wrapper {
        padding: var(--spacing-3) 0;
    }

    .product-summary {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }

    .product-price {
        text-align: center;
    }

    .progress-bar {
        margin-bottom: var(--spacing-6);
    }

    .progress-step-label {
        display: none;
    }

    .card-preview-number {
        font-size: var(--font-size-base);
        letter-spacing: 2px;
    }

    .checkout-nav {
        flex-direction: column-reverse;
    }

    .checkout-nav .btn {
        width: 100%;
    }
}