/* ============================================================
   CART — clean & confident
   ============================================================ */

:root {
    --cart-sage: #588779;
    --cart-sage-dark: #3e6557;
    --cart-sage-mid: #6d9b8b;
    --cart-ink: #1a1f1d;
    --cart-ink-soft: #2e3532;
    --cart-text: #333;
    --cart-muted: #8a8a8a;
    --cart-border: #ececec;
    --cart-bg: #fafaf8;
    --cart-cream: #fbfbf9;
    --cart-radius: 14px;
    --cart-shadow: 0 4px 22px rgba(0, 0, 0, 0.05);
    --cart-shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.09);
}

/* ============================================================
   ITEM CARDS
   ============================================================ */

.cart-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #fff;
    padding: 20px 22px;
    border-radius: var(--cart-radius);
    box-shadow: var(--cart-shadow);
    margin: 14px auto;
    max-width: 640px;
    position: relative;
    border: 1px solid var(--cart-border);
    transition: all 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.1);
    animation: cart-card-in 0.6s cubic-bezier(0.2, 0.9, 0.3, 1) both;
    overflow: hidden;
}

.cart-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--cart-sage), var(--cart-sage-mid));
    opacity: 0;
    transition: opacity 0.25s ease;
}

.cart-card:hover {
    box-shadow: var(--cart-shadow-hover);
    transform: translateY(-3px);
    border-color: #e0e0e0;
}

.cart-card:hover::before {
    opacity: 1;
}

@keyframes cart-card-in {
    0% { opacity: 0; transform: translateY(12px); }
    100% { opacity: 1; transform: translateY(0); }
}

.cart-card__image {
    width: 108px;
    height: 108px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.cart-card__info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.cart-card__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--cart-ink);
    margin: 0;
    line-height: 1.4;
    letter-spacing: 0.01em;
}

.cart-card__option {
    color: var(--cart-muted);
    font-size: 12px;
    margin: 0;
    line-height: 1.5;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cart-card__option br { display: none; }
.cart-card__option::before {
    content: "";
    display: inline-block;
    width: 12px;
    height: 12px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23588779' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") center/contain no-repeat;
    flex-shrink: 0;
}

.cart-card__price {
    font-size: 19px;
    font-weight: 800;
    color: var(--cart-ink);
    margin-top: 6px;
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
}

.cart-card__price::before {
    content: "¥";
    font-size: 13px;
    font-weight: 700;
    color: var(--cart-muted);
    margin-right: 2px;
    vertical-align: 1px;
}

.cart-card__remove-wrap {
    position: absolute;
    top: 12px;
    right: 12px;
}

.cart-card__remove {
    background: transparent;
    border: 1px solid var(--cart-border);
    color: #aaa;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}

.cart-card__remove:hover {
    background: var(--cart-ink);
    color: #fff;
    border-color: var(--cart-ink);
    transform: rotate(90deg);
}

@media (max-width: 480px) {
    .cart-card {
        margin: 10px 12px;
        padding: 14px 16px;
        gap: 14px;
        border-radius: 12px;
    }
    .cart-card__image {
        width: 86px;
        height: 86px;
        border-radius: 8px;
    }
    .cart-card__title { font-size: 14.5px; }
    .cart-card__price { font-size: 17px; }
}

/* ============================================================
   COUPON
   ============================================================ */

.coupon-box {
    max-width: 500px;
    margin: 32px auto 16px;
    padding: 0 16px;
}

.coupon-input-area {
    display: flex;
    gap: 0;
    border: 1px solid var(--cart-border);
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.25s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.coupon-input-area:focus-within {
    border-color: var(--cart-sage);
    box-shadow: 0 4px 14px rgba(88, 135, 121, 0.12);
}

.coupon-input-area input {
    flex: 1;
    padding: 15px 16px;
    border: none;
    background: transparent;
    font-size: 14px;
    letter-spacing: 0.08em;
    outline: none;
    color: var(--cart-ink);
}

.coupon-input-area input::placeholder {
    color: #b8b8b8;
    letter-spacing: 0.04em;
}

.coupon-input-area input:disabled {
    color: var(--cart-muted);
}

.coupon-apply-btn,
.coupon-remove-btn {
    padding: 0 24px;
    border: none;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background 0.25s;
    white-space: nowrap;
}

.coupon-apply-btn {
    background: linear-gradient(135deg, var(--cart-sage), var(--cart-sage-dark));
}
.coupon-apply-btn:hover {
    background: var(--cart-sage-dark);
}

.coupon-remove-btn {
    background: #8a8a8a;
}
.coupon-remove-btn:hover {
    background: #666;
}

.coupon-msg {
    display: none;
    font-size: 12px;
    margin-top: 10px;
    text-align: center;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.coupon-applied-note {
    text-align: center;
    font-size: 11px;
    color: var(--cart-sage);
    margin-top: 4px;
}

.coupon-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: coupon-spin 0.6s linear infinite;
}

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

/* ============================================================
   TOTAL — dark hero card
   ============================================================ */

.total-box {
    max-width: 500px;
    margin: 28px auto 24px;
    padding: 30px 28px;
    background:
        radial-gradient(ellipse at top right, rgba(88, 135, 121, 0.18), transparent 60%),
        linear-gradient(135deg, #1a1f1d 0%, #2a3330 100%);
    color: #fff;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 14px 40px rgba(26, 31, 29, 0.22);
    position: relative;
    overflow: hidden;
}

.total-box::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
}

.total-box::after {
    content: "";
    position: absolute;
    bottom: -40%;
    right: -20%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, rgba(88, 135, 121, 0.25), transparent 60%);
    filter: blur(30px);
    pointer-events: none;
}

.total-title {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.3em;
    margin: 0 0 10px;
    font-weight: 500;
    text-transform: uppercase;
}

.total-price {
    font-size: 40px;
    font-weight: 800;
    color: #fff;
    margin: 0;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    position: relative;
    z-index: 1;
}

@media (max-width: 480px) {
    .total-box {
        margin: 24px 16px 20px;
        padding: 26px 22px;
    }
    .total-price { font-size: 34px; }
}

.discount-msg {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    margin: 12px auto 0;
    letter-spacing: 0.05em;
    color: #ffb76a;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.cart-buttons {
    text-align: center;
    margin: 36px auto 50px;
    padding: 0 16px;
}

.btn-main {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 440px;
    margin: 0 auto 14px;
    padding: 18px 24px;
    background: linear-gradient(135deg, var(--cart-sage) 0%, var(--cart-sage-dark) 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    border-radius: 12px;
    text-decoration: none;
    letter-spacing: 0.12em;
    box-shadow: 0 10px 28px rgba(62, 101, 87, 0.32);
    transition: all 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.1);
    position: relative;
    overflow: hidden;
}

.btn-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    transition: left 0.7s ease;
}

.btn-main::after {
    content: '→';
    font-size: 18px;
    transition: transform 0.3s ease;
}

.btn-main:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(62, 101, 87, 0.45);
}

.btn-main:hover::before { left: 110%; }
.btn-main:hover::after { transform: translateX(4px); }

.btn-link {
    font-size: 13px;
    color: var(--cart-muted);
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    margin-top: 8px;
    padding: 6px 12px;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.btn-link:hover {
    color: var(--cart-ink);
    border-bottom-color: var(--cart-ink);
}

/* ============================================================
   Option Wrap
   ============================================================ */

.opt-wrap {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 16px;
}

.opt-title {
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.25em;
    margin: 44px 0 20px;
    color: var(--cart-ink);
    position: relative;
    padding-bottom: 12px;
    text-transform: uppercase;
}

.opt-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 36px;
    height: 2px;
    background: var(--cart-sage);
    border-radius: 1px;
}

.opt-scroll {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 10px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.opt-scroll::-webkit-scrollbar { display: none; }

.opt-card {
    flex: 0 0 calc(33.333% - 10px);
    display: block;
    text-decoration: none;
    color: var(--cart-ink);
    scroll-snap-align: start;
    transition: all 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.1);
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--cart-border);
    overflow: hidden;
    padding: 8px;
    position: relative;
}

.opt-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--cart-sage);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.opt-card img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
    display: block;
}

.opt-card p {
    font-size: 13px;
    font-weight: 600;
    margin: 0 4px 4px;
    line-height: 1.4;
    color: var(--cart-ink);
}

.opt-card span {
    display: block;
    margin: 2px 4px 4px;
    font-size: 12px;
    color: var(--cart-sage);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.opt-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.1);
    border-color: var(--cart-sage);
}

.opt-card:hover::after {
    transform: scaleX(1);
}

.opt-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 20px auto 50px;
    padding: 12px 28px;
    border: 1px solid var(--cart-border);
    border-radius: 28px;
    background: #fff;
    color: var(--cart-text);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.opt-more:hover {
    background: var(--cart-ink);
    color: #fff;
    border-color: var(--cart-ink);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 31, 29, 0.2);
}

/* Wrap and center the "opt-more" button */
.opt-wrap > button.opt-more {
    display: flex;
    margin-left: auto;
    margin-right: auto;
}

/* 折りたたみ制御 */
.opt-limit {
    max-height: 460px;
    overflow: hidden;
    position: relative;
}

.opt-limit::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: linear-gradient(to bottom, rgba(250, 250, 248, 0) 0%, var(--cart-bg) 85%);
    pointer-events: none;
}

/* スマホ対応 */
@media (max-width: 768px) {
    .opt-card {
        flex: 0 0 42%;
    }
    .opt-limit {
        max-height: 380px;
    }
}

/* ============================================================
   Empty state
   ============================================================ */

.no_cart {
    text-align: center;
    padding: 60px 20px;
}

.no_cart > p {
    font-size: 15px;
    color: var(--cart-muted);
    margin-bottom: 24px;
}

.cart_no a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--cart-sage), var(--cart-sage-dark));
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.1em;
    transition: all 0.25s ease;
    box-shadow: 0 8px 24px rgba(62, 101, 87, 0.28);
}

.cart_no a:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(62, 101, 87, 0.4);
}