.flash-message {
    border-radius: 999px;
    box-shadow: 0 16px 34px rgba(3, 42, 63, .12);
    font-weight: 800;
    left: 50%;
    max-width: min(92vw, 760px);
    padding: 14px 22px;
    position: fixed;
    text-align: center;
    top: 132px;
    transform: translateX(-50%);
    z-index: 30;
}

.flash-message.success {
    background: #e8f8ef;
    border: 1px solid #b9e8cb;
    color: #0a6f3c;
}

.flash-message.error {
    background: #fff1f1;
    border: 1px solid #f2bbbb;
    color: #9b1c1c;
}

.cart-title {
    padding-top: 70px;
}

.cart-shell,
.checkout-shell {
    align-items: start;
    display: grid;
    gap: 28px;
    grid-template-columns: minmax(0, 1fr) 360px;
    margin: 0 auto 80px;
    max-width: 1240px;
    padding: 0 24px;
}

.cart-empty,
.cart-items,
.checkout-panel,
.cart-summary {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 22px 46px rgba(3, 42, 63, .08);
}

.cart-empty {
    padding: 34px;
}

.cart-empty strong {
    display: block;
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.cart-items {
    display: grid;
    gap: 0;
    overflow: hidden;
}

.cart-item {
    align-items: center;
    border-bottom: 1px solid var(--line);
    display: grid;
    gap: 18px;
    grid-template-columns: 86px minmax(0, 1fr) 110px 110px 90px;
    padding: 18px;
}

.cart-item:last-of-type {
    border-bottom: 0;
}

.cart-item img {
    aspect-ratio: 3 / 4;
    border-radius: 6px;
    object-fit: cover;
    width: 86px;
}

.cart-item span {
    color: var(--accent);
    font-size: .78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.cart-item h2 {
    font-size: 1.05rem;
    margin: 4px 0;
}

.cart-item p {
    color: var(--muted);
    margin: 0;
}

.cart-item label,
.buy-form label,
.checkout-form label {
    color: var(--muted);
    display: grid;
    font-size: .86rem;
    font-weight: 800;
    gap: 6px;
}

.cart-item input,
.buy-form input,
.checkout-form input,
.checkout-form textarea,
.checkout-form select {
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    font: inherit;
    padding: 12px;
}

.checkout-form textarea {
    min-height: 92px;
    resize: vertical;
}

.checkout-steps {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    list-style: none;
    margin: 0;
    padding: 0;
}

.checkout-steps li button {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--muted);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    padding: 12px 10px;
    width: 100%;
}

.checkout-steps li.is-active button,
.checkout-steps li.is-done button {
    border-color: rgba(214, 151, 19, .76);
    color: var(--ink);
}

.checkout-steps li.is-active button {
    background: linear-gradient(180deg, #fff8e8, #fff);
    box-shadow: 0 12px 24px rgba(3, 42, 63, .08);
}

.checkout-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 8px;
}

.checkout-hint,
.field-error {
    color: var(--muted);
    font-size: .86rem;
    margin: 0;
}

.field-error {
    color: #9b1c1c;
    font-weight: 800;
}

.checkout-shell-steps .checkout-panel {
    min-height: 420px;
}

.remove-button {
    background: transparent;
    border: 0;
    color: var(--muted);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
}

.cart-items > .button {
    justify-self: start;
    margin: 18px;
}

.cart-summary {
    display: grid;
    gap: 14px;
    padding: 24px;
    position: sticky;
    top: 140px;
}

.cart-summary div,
.order-items div {
    align-items: center;
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 14px;
    justify-content: space-between;
    padding-bottom: 12px;
}

.cart-summary .total {
    border-bottom: 0;
    font-size: 1.18rem;
}

.coupon-form {
    background: linear-gradient(135deg, var(--gold-soft), #fff);
    border: 1px solid rgba(211,154,34,.35);
    border-radius: 8px;
    display: grid;
    gap: 10px;
    padding: 12px;
}

.coupon-form label {
    color: #6b4b11;
    display: grid;
    font-size: .82rem;
    font-weight: 900;
    gap: 6px;
    text-transform: uppercase;
}

.coupon-form input {
    background: #fff;
    border: 1px solid rgba(211,154,34,.42);
    border-radius: 8px;
    color: var(--ink);
    font: inherit;
    padding: 11px 12px;
    text-transform: uppercase;
}

.coupon-form.compact {
    align-items: center;
    display: flex;
    justify-content: flex-end;
}

.coupon-line strong {
    color: var(--green);
}

.checkout-form {
    display: grid;
    gap: 18px;
}

.checkout-panel {
    padding: 24px;
}

.checkout-panel h2 {
    font-size: 1.8rem;
    margin: 8px 0;
}

.checkout-summary {
    position: sticky;
}

.buy-form {
    display: grid;
    gap: 12px;
}

.product-card .card-bottom form,
.product-card .card-bottom button {
    width: 100%;
}

@media (max-width: 980px) {
    .cart-shell,
    .checkout-shell {
        grid-template-columns: 1fr;
    }

    .checkout-steps {
        grid-template-columns: 1fr;
    }

    .checkout-shell-steps .checkout-panel {
        min-height: 0;
    }

    .cart-summary,
    .checkout-summary {
        position: static;
    }

    .cart-item {
        align-items: start;
        grid-template-columns: 76px 1fr;
    }

    .cart-item label,
    .cart-item > strong,
    .cart-item .remove-button {
        grid-column: 2;
    }
}

.order-timeline {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
}

.order-timeline li {
    border-top: 3px solid #dbe4ec;
    color: #647287;
    font-size: .82rem;
    font-weight: 800;
    padding-top: 8px;
}

.order-timeline li.is-done,
.order-timeline li.is-current {
    border-top-color: #082a40;
    color: #082a40;
}

.order-timeline.is-cancelled li {
    border-top-color: #f2bbbb;
    color: #9b1c1c;
}

@media (max-width: 900px) {
    .order-timeline {
        grid-template-columns: 1fr 1fr;
    }
}