.cart-container {
    max-width: 800px;
    margin: 42px auto 0;
    background: linear-gradient(160deg, #fff, #fffaf2);
    padding: 30px;
    border: 1px solid #e8edf6;
    border-radius: 22px;
    box-shadow: 0 18px 42px rgba(16, 39, 76, .08);
}

h2 {
    text-align: center;
    margin-bottom: 20px;
}

.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
    transition: opacity .24s ease, transform .24s ease, background .24s ease;
}

.cart-list.cart-motion-ready .cart-item,
.cart-item {
    opacity: 0;
    transform: translateY(18px);
}

.cart-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

.item-info {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 2;
}

.item-info img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 10px;
}

.item-details {
    display: flex;
    padding-right: 10px;
    flex-direction: column;
}

.item-details h4 {
    margin-bottom: 5px;
}

.item-observation {
    margin: 7px 0 3px;
    padding: 8px 10px;
    color: #526985;
    background: #f0f6ff;
    border-radius: 9px;
    font-size: .76rem;
    line-height: 1.4;
}

.item-observation strong {
    color: #0d6efd;
}

.item-observation[hidden],
.item-observation-editor[hidden] {
    display: none;
}

.item-observation-editor {
    margin: 9px 0 4px;
    padding: 12px;
    background: #f7faff;
    border: 1px solid #d9e6fb;
    border-radius: 12px;
}

.item-observation-editor label {
    display: grid;
    gap: 7px;
}

.item-observation-editor label span {
    color: #526985;
    font-size: .69rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.item-observation-editor textarea {
    width: min(100%, 430px);
    resize: vertical;
    padding: 10px 11px;
    color: #1f2a3d;
    background: #fff;
    border: 1px solid #cadbf4;
    border-radius: 10px;
    font: inherit;
    font-size: .82rem;
    outline: 0;
}

.item-observation-editor textarea:focus {
    border-color: rgba(13, 110, 253, .5);
    box-shadow: 0 0 0 4px rgba(13, 110, 253, .08);
}

.observation-editor-footer {
    margin-top: 9px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.observation-editor-footer small {
    color: #7a8aa1;
    font-size: .72rem;
}

.observation-editor-footer div {
    display: flex;
    gap: 8px;
}

.note-btn,
.observation-cancel,
.observation-save {
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    font-size: .78rem;
    font-weight: 700;
}

.note-btn {
    padding: 7px 10px;
    color: #0d6efd;
    background: #eef4ff;
}

.observation-cancel {
    padding: 8px 10px;
    color: #53657c;
    background: #edf2f8;
}

.observation-save {
    padding: 8px 12px;
    color: #fff;
    background: #0d6efd;
}

.item-controls {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 5px;
}

.qty-btn {
    background-color: #eef4ff;
    color: #0d6efd;
    border: none;
    padding: 5px 10px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
    transition: background .2s ease, transform .2s ease;
}

.qty-btn:hover {
    background: #deebff;
    transform: translateY(-1px);
}

.qty-display {
    min-width: 30px;
    text-align: center;
}

.item-price {
    flex: 1;
    text-align: right;
    font-weight: bold;
}

.remove-btn {
    background-color: #dc3545;
    color: #fff;
    border: none;
    padding: 6px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
}

@keyframes sk-shimmer {
    0%   { background-position: -600px 0; }
    100% { background-position:  600px 0; }
}

.sk {
    border-radius: 6px;
    background: linear-gradient(90deg, #eef0f3 25%, #e0e3e8 50%, #eef0f3 75%);
    background-size: 600px 100%;
    animation: sk-shimmer 1.4s ease-in-out infinite;
}

.cart-skeleton-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid #e8edf6;
}

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

.sk-img  { width: 100px; height: 100px; border-radius: 10px; flex-shrink: 0; }
.sk-info { flex: 2; display: flex; flex-direction: column; gap: 10px; }
.sk-name { height: 14px; width: 70%; }
.sk-name-short { width: 40%; }
.sk-controls { display: flex; gap: 8px; }
.sk-btn  { height: 30px; width: 36px; border-radius: 5px; }
.sk-price { width: 80px; height: 16px; margin-left: auto; flex-shrink: 0; }

.cart-skeleton[hidden] { display: none; }

.checkout {
    margin-top: 30px;
}

.summary {
    margin-top: 20px;
    border-top: 1px solid #ddd;
    padding-top: 20px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.summary-item.total {
    font-weight: bold;
    font-size: 18px;
    margin-top: 10px;
}

.checkout button {
    background: linear-gradient(135deg, #0d6efd, #2d80ff);
    color: #fff;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    margin-top: 20px;
    box-shadow: 0 12px 24px rgba(13, 110, 253, .2);
    transition: transform .2s ease, box-shadow .2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    min-height: 48px;
}

.checkout button:hover {
    background: #0757c9;
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(13, 110, 253, .26);
}

.btn-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btn-spin .7s linear infinite;
    flex-shrink: 0;
}

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

.checkout-link.is-loading button {
    opacity: .82;
    cursor: wait;
    pointer-events: none;
    transform: none;
}

.checkout-link.is-loading .btn-label {
    opacity: .75;
}

.checkout-link.is-loading .btn-spinner {
    display: block;
}

.cart-motion-ready .cart-item {
    opacity: 0;
    transform: translateY(18px);
}

.cart-page-empty {
    padding: 45px 20px 30px;
    display: grid;
    justify-items: center;
    gap: 10px;
    color: #64748b;
    text-align: center;
}

.cart-page-empty[hidden] {
    display: none;
}

.cart-page-empty .material-icons {
    color: #0d6efd;
    font-size: 44px;
}

.cart-page-empty h3 {
    color: #111827;
}

.cart-page-empty a {
    margin-top: 12px;
    padding: 13px 22px;
    color: #fff;
    background: #0d6efd;
    border-radius: 11px;
    font-weight: 600;
}

.cart-motion-ready .cart-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.cart-item.is-updated {
    background: rgba(13, 110, 253, .055);
}

.cart-item.is-removing {
    opacity: 0;
    transform: translateX(32px) scale(.98);
}

.cart-item.is-pending button {
    opacity: .58;
    cursor: wait;
}

@media (max-width: 600px) {
    .cart-container {
    margin: 20px 16px 0;
    padding: 20px 16px;
    }

    .cart-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
    }

    .item-info {
    flex-direction: row;
    align-items: center;
    }

    .item-price {
    width: 100%;
    text-align: left;
    }

    .checkout button {
    width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cart-motion-ready .cart-item {
        opacity: 1;
        transform: none;
    }

    .cart-item,
    .qty-btn,
    .checkout button {
        animation: none !important;
        transition-duration: .01ms !important;
    }
}