/* SKAU Modern Cart - 2025 Scandinavian Design */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

:root {
    --skau-bg: #FAFAF9;
    --skau-surface: #FFFFFF;
    --skau-surface-hover: #F5F5F4;
    --skau-border: #E7E5E4;
    --skau-border-focus: #A8A29E;
    --skau-text: #1C1917;
    --skau-text-muted: #78716C;
    --skau-text-subtle: #A8A29E;
    --skau-primary: #1C1917;
    --skau-primary-hover: #292524;
    --skau-accent: #059669;
    --skau-accent-bg: #ECFDF5;
    --skau-error: #DC2626;
    --skau-error-bg: #FEF2F2;
    --skau-shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --skau-shadow: 0 4px 12px rgba(0,0,0,0.05);
    --skau-shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
    --skau-radius: 12px;
    --skau-radius-lg: 16px;
    --skau-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --skau-transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Base */
.skau-cart {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--skau-text);
    background: var(--skau-bg);
    min-height: 60vh;
    padding: 40px 20px;
    -webkit-font-smoothing: antialiased;
}

.skau-cart * {
    box-sizing: border-box;
}

/* Loader */
.skau-cart__loader {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.skau-cart__spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--skau-border);
    border-top-color: var(--skau-primary);
    border-radius: 50%;
    animation: skau-spin 0.8s linear infinite;
}

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

/* Layout */
.skau-cart__container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 48px;
    align-items: start;
    opacity: 0;
    animation: skau-fadeIn 0.5s ease forwards;
}

@keyframes skau-fadeIn {
    to { opacity: 1; }
}

/* Empty State */
.skau-cart__empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
}

.skau-cart__empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--skau-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--skau-shadow);
}

.skau-cart__empty-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--skau-text-muted);
}

.skau-cart__empty h2 {
    font-size: 24px;
    font-weight: 500;
    margin: 0 0 12px;
    color: var(--skau-text);
}

.skau-cart__empty p {
    color: var(--skau-text-muted);
    margin: 0 0 32px;
    font-size: 15px;
}

/* Header */
.skau-cart__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.skau-cart__title {
    font-size: 28px;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.5px;
}

.skau-cart__count {
    font-size: 14px;
    color: var(--skau-text-muted);
    font-weight: 400;
}

.skau-cart__back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--skau-text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color var(--skau-transition);
}

.skau-cart__back:hover {
    color: var(--skau-text);
}

.skau-cart__back svg {
    width: 16px;
    height: 16px;
    transition: transform var(--skau-transition);
}

.skau-cart__back:hover svg {
    transform: translateX(-3px);
}

/* Items */
.skau-cart__items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skau-cart__item {
    background: var(--skau-surface);
    border-radius: var(--skau-radius-lg);
    padding: 20px;
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 20px;
    box-shadow: var(--skau-shadow-sm);
    border: 1px solid var(--skau-border);
    transition: all var(--skau-transition);
    animation: skau-slideUp 0.4s ease backwards;
}

.skau-cart__item:nth-child(1) { animation-delay: 0.05s; }
.skau-cart__item:nth-child(2) { animation-delay: 0.1s; }
.skau-cart__item:nth-child(3) { animation-delay: 0.15s; }
.skau-cart__item:nth-child(4) { animation-delay: 0.2s; }

@keyframes skau-slideUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
}

.skau-cart__item:hover {
    border-color: var(--skau-border-focus);
    box-shadow: var(--skau-shadow);
}

.skau-cart__item--removing {
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.3s ease;
}

.skau-cart__item-image {
    width: 100px;
    height: 100px;
    border-radius: var(--skau-radius);
    overflow: hidden;
    background: var(--skau-bg);
}

.skau-cart__item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.skau-cart__item-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}

.skau-cart__item-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--skau-text);
    text-decoration: none;
    line-height: 1.4;
    transition: color var(--skau-transition);
}

.skau-cart__item-name:hover {
    color: var(--skau-text-muted);
}

.skau-cart__item-meta {
    font-size: 13px;
    color: var(--skau-text-muted);
    line-height: 1.5;
}

.skau-cart__item-meta span {
    display: block;
}

.skau-cart__item-price {
    font-size: 14px;
    color: var(--skau-text);
    font-weight: 500;
}

.skau-cart__item-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: space-between;
}

.skau-cart__item-subtotal {
    font-size: 16px;
    font-weight: 600;
    color: var(--skau-text);
    white-space: nowrap;
}

.skau-cart__item-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Quantity Selector */
.skau-cart__quantity {
    display: flex;
    align-items: center;
    background: var(--skau-bg);
    border-radius: 8px;
    overflow: hidden;
}

.skau-cart__quantity button {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--skau-text);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--skau-transition);
}

.skau-cart__quantity button:hover {
    background: var(--skau-border);
}

.skau-cart__quantity button:active {
    transform: scale(0.95);
}

.skau-cart__quantity-value {
    width: 40px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}

.skau-cart__remove {
    width: 36px;
    height: 36px;
    border: 1px solid var(--skau-border);
    background: var(--skau-surface);
    color: var(--skau-text-muted);
    cursor: pointer;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--skau-transition);
    flex-shrink: 0;
}

.skau-cart__remove:hover {
    background: var(--skau-error-bg);
    border-color: var(--skau-error);
    color: var(--skau-error);
}

.skau-cart__remove svg {
    width: 18px;
    height: 18px;
}

/* Sidebar / Summary */
.skau-cart__sidebar {
    position: sticky;
    top: 24px;
    animation: skau-slideIn 0.5s ease backwards;
    animation-delay: 0.2s;
}

@keyframes skau-slideIn {
    from {
        opacity: 0;
        transform: translateX(24px);
    }
}

.skau-cart__summary {
    background: var(--skau-surface);
    border-radius: var(--skau-radius-lg);
    padding: 28px;
    box-shadow: var(--skau-shadow);
    border: 1px solid var(--skau-border);
}

.skau-cart__summary-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--skau-border);
}

/* Shipping Section */
.skau-cart__shipping {
    margin-bottom: 24px;
}

.skau-cart__shipping-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--skau-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    display: block;
}

.skau-cart__shipping-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}

.skau-cart__shipping-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--skau-bg);
    border: 2px solid transparent;
    border-radius: var(--skau-radius);
    cursor: pointer;
    transition: all var(--skau-transition);
}

.skau-cart__shipping-option:hover {
    background: var(--skau-surface-hover);
}

.skau-cart__shipping-option--selected {
    background: var(--skau-surface);
    border-color: var(--skau-primary);
    box-shadow: var(--skau-shadow-sm);
}

.skau-cart__shipping-option input {
    display: none;
}

/* Simple radio circle */
.skau-cart__shipping-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--skau-border-focus);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--skau-transition);
}

.skau-cart__shipping-option--selected .skau-cart__shipping-radio {
    border-color: var(--skau-primary);
    background: var(--skau-primary);
}

.skau-cart__shipping-radio::after {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    transition: all var(--skau-transition-spring);
}

.skau-cart__shipping-option--selected .skau-cart__shipping-radio::after {
    opacity: 1;
    transform: scale(1);
}

/* Shipping icon */
.skau-cart__shipping-icon {
    width: 36px;
    height: 36px;
    background: var(--skau-surface);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--skau-transition);
}

.skau-cart__shipping-option--selected .skau-cart__shipping-icon {
    background: var(--skau-accent-bg);
}

.skau-cart__shipping-icon svg {
    width: 18px;
    height: 18px;
    stroke: var(--skau-text-muted);
    transition: stroke var(--skau-transition);
}

.skau-cart__shipping-option--selected .skau-cart__shipping-icon svg {
    stroke: var(--skau-accent);
}

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

.skau-cart__shipping-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--skau-text);
    margin-bottom: 2px;
}

.skau-cart__shipping-desc {
    font-size: 12px;
    color: var(--skau-text-muted);
}

.skau-cart__shipping-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--skau-text);
    white-space: nowrap;
}

.skau-cart__shipping-price--free {
    color: var(--skau-accent);
}

/* Postal Code Input */
.skau-cart__postal {
    display: flex;
    gap: 10px;
}

.skau-cart__postal-input-wrapper {
    flex: 1;
    position: relative;
}

.skau-cart__postal-input {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    font-size: 15px;
    font-family: inherit;
    border: 2px solid var(--skau-border);
    border-radius: var(--skau-radius);
    background: var(--skau-surface);
    color: var(--skau-text);
    transition: all var(--skau-transition);
    outline: none;
}

.skau-cart__postal-input:focus {
    border-color: var(--skau-primary);
    box-shadow: 0 0 0 3px rgba(28, 25, 23, 0.08);
}

.skau-cart__postal-input::placeholder {
    color: var(--skau-text-subtle);
}

.skau-cart__postal-btn {
    height: 48px;
    padding: 0 20px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    background: var(--skau-bg);
    border: 2px solid var(--skau-border);
    border-radius: var(--skau-radius);
    color: var(--skau-text);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--skau-transition);
}

.skau-cart__postal-btn:hover {
    background: var(--skau-surface-hover);
    border-color: var(--skau-border-focus);
}

.skau-cart__postal-btn:active {
    transform: scale(0.98);
}

/* Totals */
.skau-cart__totals {
    padding-top: 20px;
    border-top: 1px solid var(--skau-border);
    margin-top: 20px;
}

.skau-cart__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-size: 14px;
}

.skau-cart__row-label {
    color: var(--skau-text-muted);
}

.skau-cart__row-value {
    font-weight: 500;
    color: var(--skau-text);
}

.skau-cart__row--total {
    padding-top: 16px;
    margin-top: 8px;
    border-top: 2px solid var(--skau-text);
}

.skau-cart__row--total .skau-cart__row-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--skau-text);
}

.skau-cart__row--total .skau-cart__row-value {
    font-size: 24px;
    font-weight: 600;
}

.skau-cart__tax-note {
    font-size: 12px;
    color: var(--skau-text-muted);
    text-align: right;
    margin-top: 4px;
}

/* Coupon */
.skau-cart__coupon {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--skau-border);
}

.skau-cart__coupon-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    padding: 0;
    font-size: 14px;
    color: var(--skau-text-muted);
    cursor: pointer;
    font-family: inherit;
    transition: color var(--skau-transition);
}

.skau-cart__coupon-toggle:hover {
    color: var(--skau-text);
}

.skau-cart__coupon-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform var(--skau-transition);
}

.skau-cart__coupon-toggle--open svg {
    transform: rotate(180deg);
}

.skau-cart__coupon-form {
    display: none;
    gap: 10px;
    margin-top: 12px;
}

.skau-cart__coupon-form--open {
    display: flex;
}

.skau-cart__coupon-input {
    flex: 1;
    height: 44px;
    padding: 0 14px;
    font-size: 14px;
    font-family: inherit;
    border: 2px solid var(--skau-border);
    border-radius: var(--skau-radius);
    background: var(--skau-surface);
    color: var(--skau-text);
    transition: all var(--skau-transition);
    outline: none;
}

.skau-cart__coupon-input:focus {
    border-color: var(--skau-primary);
}

.skau-cart__coupon-btn {
    height: 44px;
    padding: 0 16px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    background: var(--skau-bg);
    border: 2px solid var(--skau-border);
    border-radius: var(--skau-radius);
    color: var(--skau-text);
    cursor: pointer;
    transition: all var(--skau-transition);
}

.skau-cart__coupon-btn:hover {
    background: var(--skau-surface-hover);
}

.skau-cart__coupon-applied {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 8px 12px;
    background: var(--skau-accent-bg);
    border-radius: 8px;
    font-size: 13px;
    color: var(--skau-accent);
    font-weight: 500;
}

/* Checkout Button */
.skau-cart__checkout {
    margin-top: 24px;
}

.skau-cart__checkout-btn {
    width: 100%;
    height: 56px;
    padding: 0 32px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    background: var(--skau-primary);
    border: none;
    border-radius: var(--skau-radius);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--skau-transition);
    position: relative;
    overflow: hidden;
}

.skau-cart__checkout-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--skau-transition);
}

.skau-cart__checkout-btn:hover {
    background: var(--skau-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--skau-shadow-lg);
}

.skau-cart__checkout-btn:hover::before {
    opacity: 1;
}

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

.skau-cart__checkout-btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--skau-transition);
}

.skau-cart__checkout-btn:hover svg {
    transform: translateX(3px);
}

/* Loading State */
.skau-cart--loading {
    pointer-events: none;
}

.skau-cart--loading .skau-cart__summary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.7);
    border-radius: var(--skau-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive */
@media (max-width: 1100px) {
    .skau-cart__container {
        grid-template-columns: 1fr 400px;
        gap: 32px;
    }
}

@media (max-width: 900px) {
    .skau-cart__container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .skau-cart__sidebar {
        position: static;
    }
}

@media (max-width: 600px) {
    .skau-cart {
        padding: 24px 16px;
    }
    
    .skau-cart__item {
        grid-template-columns: 80px 1fr;
        gap: 16px;
    }
    
    .skau-cart__item-actions {
        grid-column: 1 / -1;
        flex-direction: row;
        align-items: center;
        padding-top: 12px;
        border-top: 1px solid var(--skau-border);
        margin-top: 4px;
    }
    
    .skau-cart__item-subtotal {
        order: -1;
    }
    
    .skau-cart__summary {
        padding: 20px;
    }
    
    .skau-cart__shipping-option {
        padding: 14px;
    }
    
    .skau-cart__shipping-icon {
        display: none;
    }
}