/* ========================================
   カートページ専用スタイル（rem基準）
   1rem = 10px @1920px
   ======================================== */

/* パンくずリスト */
.cart-breadcrumb {
    background-color: var(--cream-bg);
    padding: 2.8rem 0 0;
}

.cart-breadcrumb-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 11.2rem;
}

.cart-breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    font-size: 2rem;
    color: var(--text-light);
}

.cart-breadcrumb-list a {
    color: var(--accent-blue);
    font-weight: 500;
}

.cart-breadcrumb-list a:hover {
    text-decoration: underline;
}

.cart-breadcrumb-separator {
    color: var(--text-light);
    font-size: 1.8rem;
}

.cart-breadcrumb-current {
    color: var(--text-color);
    font-weight: 600;
}

/* ========================================
   ステップバー
   ======================================== */
.cart-steps {
    background-color: var(--cream-bg);
    padding: 5.6rem 0 4.2rem;
}

.cart-steps-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 11.2rem;
}

.cart-steps-list {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    max-width: 90rem;
    margin: 0 auto;
}

.cart-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    flex-shrink: 0;
}

.cart-step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 5.6rem;
    height: 5.6rem;
    border-radius: 50%;
    font-size: 2.4rem;
    font-weight: 700;
    background-color: var(--bg-white);
    border: 0.28rem solid var(--border-color);
    color: var(--text-light);
    transition: all 0.3s ease;
}

.cart-step.active .cart-step-number {
    background-color: var(--primary-color);
    border-color: var(--primary-dark);
    color: #fff;
}

.cart-step.completed .cart-step-number {
    background-color: var(--primary-color);
    border-color: var(--primary-dark);
    color: #fff;
}

.cart-step-label {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-light);
    white-space: nowrap;
}

.cart-step.active .cart-step-label {
    color: var(--text-color);
}

.cart-step.completed .cart-step-label {
    color: var(--text-color);
}

.cart-step-line {
    flex: 1;
    height: 0.28rem;
    background-color: var(--border-color);
    margin: 0 2.8rem;
    margin-bottom: 3.2rem;
    min-width: 5.6rem;
}

/* ========================================
   カートセクション
   ======================================== */
.cart-section {
    background-color: var(--cream-bg);
    padding-bottom: 8.4rem;
}

.cart-section-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 11.2rem;
}

.cart-title {
    font-size: 4.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 4.2rem;
    padding-bottom: 1.4rem;
    border-bottom: 0.42rem solid var(--primary-color);
    display: inline-block;
}

/* 2カラムレイアウト */
.cart-content {
    display: grid;
    grid-template-columns: 1fr 42rem;
    gap: 5.6rem;
    align-items: start;
}

/* ========================================
   カートアイテム
   ======================================== */
.cart-items {
    display: flex;
    flex-direction: column;
    gap: 2.8rem;
}

.cart-item {
    display: grid;
    grid-template-columns: 14rem 1fr auto auto auto;
    gap: 2.8rem;
    align-items: center;
    background-color: var(--bg-white);
    border-radius: 1.4rem;
    padding: 2.8rem;
    transition: box-shadow 0.2s ease;
}

.cart-item:hover {
    box-shadow: 0 0.28rem 1.12rem rgba(0, 0, 0, 0.08);
}

/* 商品画像 */
.cart-item-image {
    width: 14rem;
    height: 14rem;
    overflow: hidden;
    border-radius: 1.05rem;
    flex-shrink: 0;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 商品情報 */
.cart-item-info {
    min-width: 0;
}

.cart-item-name {
    font-size: 2.24rem;
    font-weight: 600;
    margin-bottom: 1.05rem;
    line-height: 1.5;
}

.cart-item-name a {
    color: var(--text-color);
    transition: color 0.2s ease;
}

.cart-item-name a:hover {
    color: var(--primary-dark);
}

/* 在庫ステータス */
.cart-item-stock {
    font-size: 1.96rem;
    font-weight: 600;
    margin-top: 0.7rem;
}

.cart-item-stock-available {
    color: #16a34a;
}

.cart-item-stock-unavailable {
    color: var(--danger-color);
}

/* 数量コントロール */
.cart-item-quantity {
    text-align: center;
}

.cart-item-qty-label {
    display: block;
    font-size: 1.82rem;
    color: var(--text-light);
    margin-bottom: 0.7rem;
}

.cart-qty-control {
    display: flex;
    align-items: center;
    border: 0.18rem solid var(--border-color);
    border-radius: 0.7rem;
    overflow: hidden;
}

.cart-qty-btn {
    width: 4.5rem;
    height: 4.5rem;
    background-color: var(--cream-bg);
    border: none;
    cursor: pointer;
    font-size: 2.4rem;
    color: var(--text-color);
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-qty-btn:hover {
    background-color: var(--primary-light);
}

.cart-qty-input {
    width: 5.6rem;
    height: 4.5rem;
    border: none;
    text-align: center;
    font-size: 2.24rem;
    font-family: inherit;
    color: var(--text-color);
    background-color: var(--bg-white);
    -moz-appearance: textfield;
}

.cart-qty-input::-webkit-outer-spin-button,
.cart-qty-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* 本体価格（右側） */
.cart-item-price {
    text-align: right;
    min-width: 14rem;
}

.cart-item-price-value {
    display: block;
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-color);
}

.cart-item-price-tax {
    font-size: 1.82rem;
    font-weight: 400;
    color: var(--text-light);
}

/* 削除ボタン */
.cart-item-remove {
    text-align: center;
}

.cart-remove-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.56rem;
    padding: 1.4rem;
    background: none;
    border: 0.18rem solid var(--border-color);
    border-radius: 1.05rem;
    color: var(--text-light);
    font-size: 1.68rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cart-remove-btn:hover {
    background-color: #fef2f2;
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.cart-remove-btn svg {
    width: 2.8rem;
    height: 2.8rem;
    stroke: currentColor;
}

/* ========================================
   カートサマリー
   ======================================== */
.cart-summary {
    background-color: var(--bg-white);
    border-radius: 1.4rem;
    padding: 3.5rem;
    position: sticky;
    top: 2.8rem;
}

.cart-summary-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 2.8rem;
    padding-bottom: 1.4rem;
    border-bottom: 0.18rem solid var(--border-color);
}

.cart-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 2.24rem;
    color: var(--text-color);
    margin-bottom: 1.75rem;
}

.cart-summary-count {
    font-weight: 600;
}

.cart-summary-subtotal {
    font-weight: 600;
}

.cart-summary-shipping {
    font-weight: 600;
    color: #16a34a;
}

.cart-summary-shipping-note {
    font-size: 1.82rem;
    color: var(--text-light);
    margin-bottom: 2.8rem;
}

.cart-summary-divider {
    height: 0.18rem;
    background-color: var(--border-color);
    margin-bottom: 2.1rem;
}

.cart-summary-total {
    font-size: 2.52rem;
    font-weight: 700;
    margin-bottom: 3.5rem;
}

.cart-summary-total-price {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

/* 購入手続きボタン */
.cart-checkout-btn {
    display: block;
    width: 100%;
    padding: 2.1rem;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 1.05rem;
    font-size: 2.52rem;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.cart-checkout-btn:hover {
    background-color: var(--primary-dark);
    color: #fff;
}

/* 買い物を続けるリンク */
.cart-continue-link {
    display: block;
    text-align: center;
    margin-top: 2.1rem;
    font-size: 2rem;
    color: var(--accent-blue);
    font-weight: 500;
}

.cart-continue-link:hover {
    text-decoration: underline;
}

/* ========================================
   空カート表示
   ======================================== */
.cart-empty {
    text-align: center;
    padding: 11.2rem 2.8rem;
    background-color: var(--bg-white);
    border-radius: 1.4rem;
}

.cart-empty-icon {
    color: var(--border-color);
    margin-bottom: 2.8rem;
}

.cart-empty-icon svg {
    width: 8.4rem;
    height: 8.4rem;
}

.cart-empty-message {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1.4rem;
}

.cart-empty-sub {
    font-size: 2.24rem;
    color: var(--text-light);
    margin-bottom: 4.2rem;
}

.cart-empty-btn {
    display: inline-block;
    padding: 1.75rem 5.6rem;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 1.05rem;
    font-size: 2.24rem;
    font-weight: 600;
    transition: background-color 0.2s ease;
}

.cart-empty-btn:hover {
    background-color: var(--primary-dark);
    color: #fff;
}

/* ========================================
   レスポンシブ - タブレット（768px以下）
   ======================================== */
@media (max-width: 768px) {
    .cart-breadcrumb-inner {
        padding: 0 4.2rem;
    }

    .cart-steps {
        padding: 4.2rem 0 2.8rem;
    }

    .cart-steps-inner {
        padding: 0 4.2rem;
    }

    .cart-step-number {
        width: 4.9rem;
        height: 4.9rem;
        font-size: 2.1rem;
    }

    .cart-step-label {
        font-size: 1.82rem;
    }

    .cart-step-line {
        margin: 0 1.4rem;
        margin-bottom: 3rem;
        min-width: 2.8rem;
    }

    .cart-section-inner {
        padding: 0 4.2rem;
    }

    .cart-title {
        font-size: 3.5rem;
    }

    /* 1カラムに切り替え */
    .cart-content {
        grid-template-columns: 1fr;
        gap: 4.2rem;
    }

    .cart-summary {
        position: static;
    }

    /* カートアイテムをモバイル向けに */
    .cart-item {
        grid-template-columns: 12rem 1fr;
        grid-template-rows: auto auto;
        gap: 2.1rem;
        padding: 2.8rem;
    }

    .cart-item-image {
        width: 12rem;
        height: 12rem;
        grid-row: span 2;
    }

    .cart-item-info {
        grid-column: 2;
        padding-right: 10rem;
    }

    .cart-item-quantity {
        grid-column: 2;
        justify-self: start;
    }

    .cart-item-price {
        grid-column: 2;
        text-align: left;
    }

    .cart-item-remove {
        position: absolute;
        top: 2.1rem;
        right: 2.1rem;
    }

    .cart-item {
        position: relative;
    }

    .cart-remove-btn {
        flex-direction: row;
        padding: 1.05rem 1.75rem;
    }

    .cart-remove-btn svg {
        width: 2.1rem;
        height: 2.1rem;
    }
}

/* ========================================
   レスポンシブ - モバイル（480px以下）
   ======================================== */
@media (max-width: 480px) {
    .cart-breadcrumb {
        padding: 2.1rem 0 0;
    }

    .cart-breadcrumb-inner {
        padding: 0 2.8rem;
    }

    .cart-breadcrumb-list {
        font-size: 1.82rem;
    }

    .cart-steps {
        padding: 2.8rem 0 2.1rem;
    }

    .cart-steps-inner {
        padding: 0 2.8rem;
    }

    .cart-step-number {
        width: 4.2rem;
        height: 4.2rem;
        font-size: 1.82rem;
    }

    .cart-step-label {
        font-size: 1.68rem;
    }

    .cart-step-line {
        margin: 0 0.7rem;
        margin-bottom: 2.5rem;
        min-width: 2.1rem;
    }

    .cart-section-inner {
        padding: 0 2.8rem;
    }

    .cart-title {
        font-size: 3rem;
    }

    .cart-item {
        grid-template-columns: 10rem 1fr;
        gap: 1.4rem;
        padding: 2.1rem;
    }

    .cart-item-image {
        width: 10rem;
        height: 10rem;
    }

    .cart-item-name {
        font-size: 2rem;
    }

    .cart-item-price-value {
        font-size: 2.38rem;
    }

    .cart-summary {
        padding: 2.8rem;
    }

    .cart-summary-title {
        font-size: 2.52rem;
    }

    .cart-summary-total-price {
        font-size: 3rem;
    }

    .cart-checkout-btn {
        font-size: 2.24rem;
        padding: 1.75rem;
    }

    .cart-empty {
        padding: 8.4rem 2.1rem;
    }

    .cart-empty-message {
        font-size: 2.8rem;
    }

    .cart-empty-sub {
        font-size: 2rem;
    }

}