/**
 * Chat Commerce UI Styles
 * Product cards, cart summary, checkout panel for chat interface
 * VERSION: 2024-12-22
 */

/* ============================================
   PRODUCT CARD IN CHAT
   ============================================ */

.viva-product-card {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    overflow: hidden;
    width: 100%;
    max-width: 280px;
}

.viva-product-card-image {
    width: 100%;
    height: 140px;
    object-fit: cover;
    background: #F3F4F6;
}

.viva-product-card-image-placeholder {
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, #F3F4F6 0%, #E5E7EB 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9CA3AF;
}

.viva-product-card-body {
    padding: 12px;
}

.viva-product-card-name {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.viva-product-card-description {
    font-size: 12px;
    color: #6B7280;
    margin: 0 0 8px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.viva-product-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.viva-product-card-price {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
}

.viva-product-card-price-original {
    font-size: 12px;
    color: #9CA3AF;
    text-decoration: line-through;
    margin-left: 4px;
}

.viva-product-card-btn {
    padding: 6px 12px;
    border-radius: 6px;
    border: none;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.viva-product-card-btn-primary {
    background: #155DFC;
    color: #FFFFFF;
}

.viva-product-card-btn-primary:hover {
    background: #1447E6;
}

.viva-product-card-btn-secondary {
    background: #F3F4F6;
    color: #374151;
}

.viva-product-card-btn-secondary:hover {
    background: #E5E7EB;
}

/* Out of stock state */
.viva-product-card.out-of-stock .viva-product-card-image {
    filter: grayscale(50%);
    opacity: 0.7;
}

.viva-product-card-unavailable {
    font-size: 12px;
    color: #DC2626;
    font-weight: 500;
}

/* ============================================
   PRODUCT CAROUSEL IN CHAT
   ============================================ */

.viva-product-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin: 8px 0;
}

.viva-product-carousel-track {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    padding: 4px;
}

.viva-product-carousel-track::-webkit-scrollbar {
    height: 6px;
}

.viva-product-carousel-track::-webkit-scrollbar-track {
    background: #F3F4F6;
    border-radius: 3px;
}

.viva-product-carousel-track::-webkit-scrollbar-thumb {
    background: #D1D5DB;
    border-radius: 3px;
}

.viva-product-carousel-track::-webkit-scrollbar-thumb:hover {
    background: #9CA3AF;
}

.viva-product-carousel-item {
    flex-shrink: 0;
    scroll-snap-align: start;
}

.viva-product-carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #374151;
    z-index: 10;
    transition: all 0.15s ease;
}

.viva-product-carousel-nav:hover {
    background: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.viva-product-carousel-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.viva-product-carousel-prev {
    left: 4px;
}

.viva-product-carousel-next {
    right: 4px;
}

/* ============================================
   CART SUMMARY IN CHAT
   ============================================ */

.viva-cart-summary {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 16px;
    width: 100%;
    max-width: 320px;
}

.viva-cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #E5E7EB;
}

.viva-cart-title {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    display: flex;
    align-items: center;
    gap: 8px;
}

.viva-cart-count {
    background: #155DFC;
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
}

.viva-cart-clear {
    font-size: 12px;
    color: #6B7280;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.15s ease;
}

.viva-cart-clear:hover {
    background: #F3F4F6;
    color: #DC2626;
}

/* Cart Items */
.viva-cart-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
    max-height: 200px;
    overflow-y: auto;
}

.viva-cart-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.viva-cart-item-image {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
    background: #F3F4F6;
    flex-shrink: 0;
}

.viva-cart-item-details {
    flex: 1;
    min-width: 0;
}

.viva-cart-item-name {
    font-size: 13px;
    font-weight: 500;
    color: #111827;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.viva-cart-item-variant {
    font-size: 11px;
    color: #6B7280;
}

.viva-cart-item-price {
    font-size: 13px;
    font-weight: 600;
    color: #111827;
    text-align: right;
    flex-shrink: 0;
}

/* Quantity Controls */
.viva-cart-item-qty {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

.viva-cart-qty-btn {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    border: 1px solid #E5E7EB;
    background: #FFFFFF;
    color: #374151;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s ease;
}

.viva-cart-qty-btn:hover {
    background: #F3F4F6;
    border-color: #D1D5DB;
}

.viva-cart-qty-value {
    font-size: 13px;
    font-weight: 500;
    color: #111827;
    min-width: 20px;
    text-align: center;
}

.viva-cart-item-remove {
    font-size: 11px;
    color: #DC2626;
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px 4px;
    margin-left: 8px;
}

.viva-cart-item-remove:hover {
    text-decoration: underline;
}

/* Cart Totals */
.viva-cart-totals {
    border-top: 1px solid #E5E7EB;
    padding-top: 12px;
    margin-bottom: 16px;
}

.viva-cart-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 13px;
}

.viva-cart-row:last-child {
    margin-bottom: 0;
}

.viva-cart-row-label {
    color: #6B7280;
}

.viva-cart-row-value {
    color: #111827;
    font-weight: 500;
}

.viva-cart-row.total {
    font-size: 15px;
    font-weight: 600;
    padding-top: 8px;
    border-top: 1px dashed #E5E7EB;
    margin-top: 8px;
}

.viva-cart-row.total .viva-cart-row-label,
.viva-cart-row.total .viva-cart-row-value {
    color: #111827;
}

/* Cart Actions */
.viva-cart-actions {
    display: flex;
    gap: 8px;
}

.viva-cart-btn {
    flex: 1;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.viva-cart-btn-checkout {
    background: #155DFC;
    color: #FFFFFF;
    border: none;
}

.viva-cart-btn-checkout:hover {
    background: #1447E6;
}

.viva-cart-btn-continue {
    background: #FFFFFF;
    color: #374151;
    border: 1px solid #E5E7EB;
}

.viva-cart-btn-continue:hover {
    background: #F9FAFB;
}

/* Empty Cart */
.viva-cart-empty {
    text-align: center;
    padding: 24px 16px;
    color: #6B7280;
}

.viva-cart-empty-icon {
    margin-bottom: 8px;
    opacity: 0.5;
}

.viva-cart-empty-text {
    font-size: 14px;
}

/* ============================================
   CHECKOUT PANEL IN CHAT
   ============================================ */

.viva-checkout-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #FFFFFF;
    border-radius: 24px 24px 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    max-height: 90vh;
    overflow-y: auto;
    z-index: 10000;
    animation: viva-slide-up 0.3s ease-out;
}

@keyframes viva-slide-up {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.viva-checkout-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    animation: viva-fade-in 0.2s ease-out;
}

@keyframes viva-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.viva-checkout-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid #E5E7EB;
    position: sticky;
    top: 0;
    background: #FFFFFF;
    z-index: 10;
}

.viva-checkout-title {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
}

.viva-checkout-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: #F3F4F6;
    color: #374151;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.viva-checkout-close:hover {
    background: #E5E7EB;
}

.viva-checkout-body {
    padding: 20px;
}

/* Checkout Sections */
.viva-checkout-section {
    margin-bottom: 24px;
}

.viva-checkout-section-title {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.viva-checkout-section-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #155DFC;
    color: #FFFFFF;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Fulfillment Options */
.viva-fulfillment-options {
    display: flex;
    gap: 12px;
}

.viva-fulfillment-option {
    flex: 1;
    padding: 16px;
    border: 2px solid #E5E7EB;
    border-radius: 12px;
    background: #FFFFFF;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}

.viva-fulfillment-option:hover {
    border-color: #D1D5DB;
}

.viva-fulfillment-option.selected {
    border-color: #155DFC;
    background: #EFF6FF;
}

.viva-fulfillment-option-icon {
    margin-bottom: 8px;
    color: #6B7280;
}

.viva-fulfillment-option.selected .viva-fulfillment-option-icon {
    color: #155DFC;
}

.viva-fulfillment-option-label {
    font-size: 14px;
    font-weight: 500;
    color: #111827;
}

.viva-fulfillment-option-desc {
    font-size: 12px;
    color: #6B7280;
    margin-top: 2px;
}

/* Contact Form */
.viva-checkout-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.viva-checkout-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.viva-checkout-field label {
    font-size: 13px;
    font-weight: 500;
    color: #374151;
}

.viva-checkout-field input,
.viva-checkout-field textarea {
    padding: 10px 12px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    font-size: 14px;
    color: #111827;
    background: #FFFFFF;
    transition: all 0.15s ease;
}

.viva-checkout-field input:focus,
.viva-checkout-field textarea:focus {
    outline: none;
    border-color: #155DFC;
    box-shadow: 0 0 0 3px rgba(21, 93, 252, 0.1);
}

.viva-checkout-field input::placeholder,
.viva-checkout-field textarea::placeholder {
    color: #9CA3AF;
}

.viva-checkout-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Order Summary in Checkout */
.viva-checkout-summary {
    background: #F9FAFB;
    border-radius: 12px;
    padding: 16px;
}

.viva-checkout-summary-items {
    margin-bottom: 12px;
    max-height: 150px;
    overflow-y: auto;
}

.viva-checkout-summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #E5E7EB;
}

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

.viva-checkout-summary-item-name {
    font-size: 13px;
    color: #111827;
}

.viva-checkout-summary-item-qty {
    font-size: 12px;
    color: #6B7280;
    margin-left: 4px;
}

.viva-checkout-summary-item-price {
    font-size: 13px;
    font-weight: 500;
    color: #111827;
}

.viva-checkout-summary-totals {
    padding-top: 12px;
    border-top: 1px solid #E5E7EB;
}

/* Stripe Payment Element */
.viva-payment-element {
    margin-top: 16px;
}

#viva-stripe-element {
    padding: 12px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    background: #FFFFFF;
}

/* Checkout Footer */
.viva-checkout-footer {
    padding: 16px 20px;
    border-top: 1px solid #E5E7EB;
    background: #FFFFFF;
    position: sticky;
    bottom: 0;
}

.viva-checkout-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.viva-checkout-total-label {
    font-size: 16px;
    font-weight: 600;
    color: #111827;
}

.viva-checkout-total-value {
    font-size: 24px;
    font-weight: 700;
    color: #111827;
}

.viva-checkout-submit {
    width: 100%;
    padding: 14px 24px;
    border-radius: 12px;
    border: none;
    background: #155DFC;
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.viva-checkout-submit:hover {
    background: #1447E6;
}

.viva-checkout-submit:disabled {
    background: #9CA3AF;
    cursor: not-allowed;
}

.viva-checkout-submit .spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #FFFFFF;
    border-radius: 50%;
    animation: viva-spin 0.8s linear infinite;
}

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

.viva-checkout-secure {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 12px;
    color: #6B7280;
}

/* ============================================
   ORDER CONFIRMATION IN CHAT
   ============================================ */

.viva-order-confirmation {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    max-width: 320px;
}

.viva-order-confirmation-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #D1FAE5;
    color: #059669;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.viva-order-confirmation-title {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    margin-bottom: 4px;
}

.viva-order-confirmation-number {
    font-size: 14px;
    color: #6B7280;
    margin-bottom: 16px;
}

.viva-order-confirmation-details {
    background: #F9FAFB;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 16px;
    text-align: left;
}

.viva-order-confirmation-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 8px;
}

.viva-order-confirmation-row:last-child {
    margin-bottom: 0;
}

.viva-order-confirmation-label {
    color: #6B7280;
}

.viva-order-confirmation-value {
    color: #111827;
    font-weight: 500;
}

.viva-order-confirmation-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #155DFC;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}

.viva-order-confirmation-link:hover {
    text-decoration: underline;
}

/* ============================================
   QUICK ADD BUTTONS IN MESSAGES
   ============================================ */

.viva-quick-add {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 8px 0;
}

.viva-quick-add-btn {
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid #E5E7EB;
    background: #FFFFFF;
    color: #374151;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.viva-quick-add-btn:hover {
    border-color: #155DFC;
    color: #155DFC;
}

.viva-quick-add-btn.added {
    background: #D1FAE5;
    border-color: #059669;
    color: #059669;
}

/* ============================================
   LOADING STATES
   ============================================ */

.viva-commerce-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    color: #6B7280;
}

.viva-commerce-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid #E5E7EB;
    border-top-color: #155DFC;
    border-radius: 50%;
    animation: viva-spin 0.8s linear infinite;
    margin-bottom: 12px;
}

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

@media (max-width: 440px) {
    .viva-product-card {
        max-width: 100%;
    }

    .viva-cart-summary {
        max-width: 100%;
    }

    .viva-checkout-panel {
        max-height: 100vh;
        border-radius: 0;
    }

    .viva-checkout-field-row {
        grid-template-columns: 1fr;
    }

    .viva-fulfillment-options {
        flex-direction: column;
    }

    .viva-order-confirmation {
        max-width: 100%;
    }
}

/* ============================================
   DARK MODE (WIDGET IN DARK CONTAINER)
   ============================================ */

.viva-chat-container.dark-mode .viva-product-card,
.viva-chat-container.dark-mode .viva-cart-summary,
.viva-chat-container.dark-mode .viva-order-confirmation {
    background: #1F2937;
    border-color: #374151;
}

.viva-chat-container.dark-mode .viva-product-card-name,
.viva-chat-container.dark-mode .viva-cart-title,
.viva-chat-container.dark-mode .viva-cart-item-name,
.viva-chat-container.dark-mode .viva-cart-item-price,
.viva-chat-container.dark-mode .viva-cart-row-value,
.viva-chat-container.dark-mode .viva-product-card-price {
    color: #F9FAFB;
}

.viva-chat-container.dark-mode .viva-product-card-description,
.viva-chat-container.dark-mode .viva-cart-row-label,
.viva-chat-container.dark-mode .viva-cart-item-variant {
    color: #9CA3AF;
}