/* ============================================================================
   cart.css — Giỏ hàng (/gio-hang). Rebuild v5: basic · gọn · phẳng · chuẩn brand.
   Token-only (không hardcode hex). Thang chữ hẹp (4 cỡ), bo góc vừa (≤10px),
   chỉ teal/emerald, không gradient/pill/shadow nặng.
   ============================================================================ */

.cart { background: var(--color-bg); color: var(--color-text); padding: var(--space-8) 0 var(--space-12); min-height: 70vh; }
.cart__wrap { max-width: 1040px; margin: 0 auto; padding: 0 var(--space-4); }

/* ── Header ─────────────────────────────────────────────────────────────── */
.cart-head { margin-bottom: var(--space-5); }
.cart-back {
    display: inline-flex; align-items: center; gap: 7px;
    color: var(--color-muted); font-size: 13px; font-weight: var(--fw-semibold);
    text-decoration: none; margin-bottom: var(--space-4);
    transition: color var(--dur-fast) var(--ease);
}
.cart-back i { font-size: 11px; }
.cart-back:hover { color: var(--color-primary); }
.cart-head__title { font-size: 22px; font-weight: var(--fw-bold); color: var(--color-ink); letter-spacing: -.01em; line-height: 1.2; margin: 0; }
.cart-head__sub { font-size: 13px; color: var(--color-muted); margin: 4px 0 0; }

/* ── Layout: 2 cột ──────────────────────────────────────────────────────── */
.cart-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: var(--space-4); align-items: start; }
@media (max-width: 880px) {
    .cart-grid { grid-template-columns: 1fr; }
    /* Khi xếp 1 cột, tóm tắt nằm dưới danh sách → bỏ sticky để không nhảy/khoảng trống */
    .cart-summary { position: static; top: auto; }
}

.cart-panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); }
.cart-panel__head { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-4); padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-line); }
.cart-panel__title { font-size: 15px; font-weight: var(--fw-bold); color: var(--color-ink); margin: 0; }
.cart-count { display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 22px; padding: 0 7px; border-radius: var(--radius-sm); background: var(--color-primary-soft); color: var(--color-primary); font-size: 12px; font-weight: var(--fw-bold); margin-left: auto; }

/* ── Item ───────────────────────────────────────────────────────────────── */
.cart-items { display: flex; flex-direction: column; gap: var(--space-3); }
.cart-item { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; padding: var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
/* Badge quà tặng: luôn là 1 hàng full-width dưới cùng item (canh đều với giá) */
.cart-item__gift { flex: 1 1 100%; }
.cart-item__media { position: relative; width: 96px; flex-shrink: 0; aspect-ratio: 16/10; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--color-border); background: var(--color-soft); }
.cart-item__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cart-item__media--ph { display: flex; align-items: center; justify-content: center; background: var(--color-primary-soft); }
.cart-item__media--ph i { font-size: 24px; color: var(--color-primary); }

.cart-item__body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 7px; }
.cart-item__name { font-size: 14.5px; font-weight: var(--fw-semibold); color: var(--color-ink); line-height: 1.35; margin: 0; }
.cart-item__name a { color: inherit; text-decoration: none; }
.cart-item__name a:hover { color: var(--color-primary); }
.cart-item__meta { display: flex; flex-wrap: wrap; gap: 6px; }
.cart-item__tag { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: var(--fw-semibold); color: var(--color-muted); background: var(--color-soft); border-radius: var(--radius-sm); padding: 3px 8px; }
.cart-item__tag i { font-size: 10px; color: var(--color-muted); }
.cart-item__tag--ok { color: var(--color-secondary); background: var(--color-secondary-soft); }
.cart-item__tag--ok i { color: var(--color-secondary); }
.cart-item__side { display: flex; flex-direction: column; align-items: flex-end; gap: var(--space-2); flex-shrink: 0; }
.cart-item__price { font-size: 15px; font-weight: var(--fw-bold); color: var(--color-ink); white-space: nowrap; }
/* ── Mobile: thu gọn padding, chữ, nút cho màn hẹp ──────────────────────── */
@media (max-width: 600px) {
    .cart { padding: var(--space-5) 0 var(--space-10); }
    .cart__wrap { padding: 0 var(--space-3); }
    .cart-head { margin-bottom: var(--space-4); }
    .cart-head__title { font-size: 19px; }
    .cart-panel, .cart-summary { padding: var(--space-4); border-radius: var(--radius-sm); }
    .cart-grid { gap: var(--space-3); }
    /* "Chọn thêm khóa học" full-width cho dễ chạm */
    .cart-panel__foot > .cart-btn--outline { width: 100%; }
}

@media (max-width: 480px) {
    .cart-item { align-items: flex-start; gap: var(--space-2) var(--space-3); }
    .cart-item__media { width: 64px; }
    .cart-item__body { flex: 1; min-width: 0; }
    /* Thứ tự trên mobile: tên → badge quà → (giá + Xóa). Badge nằm ngay dưới tên,
       canh sát mép trái item thay vì thụt vào theo body */
    .cart-item__media { order: 0; }
    .cart-item__body  { order: 1; }
    .cart-item__gift  { order: 2; }
    .cart-item__side  { order: 3; }
    /* Giá + nút Xóa xuống hàng riêng, dàn 2 đầu, chạm thoải mái */
    .cart-item__side { flex-direction: row; align-items: center; justify-content: space-between; width: 100%; }
    .cart-btn--remove { height: 40px; padding: 0 var(--space-3); }
    /* Tổng tiền nhỏ lại chút để không tràn khi giá dài */
    .cart-total__num { font-size: 20px; }
    .cart-coupon__input, .cart-coupon__row .cart-btn { height: 44px; }
}

.cart-panel__foot { margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--color-line); }

/* ── Summary (cột phải) ─────────────────────────────────────────────────── */
.cart-summary { position: sticky; top: 88px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); }
.cart-summary__title { font-size: 15px; font-weight: var(--fw-bold); color: var(--color-ink); margin: 0 0 var(--space-4); padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-line); }
.cart-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); font-size: 13px; color: var(--color-muted); margin-bottom: var(--space-3); }
.cart-row__val { font-weight: var(--fw-semibold); color: var(--color-text); }
.cart-row__val--off { color: var(--color-secondary); }
.cart-row__val--free { color: var(--color-secondary); }

.cart-total { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); padding: var(--space-3) 0 0; margin: var(--space-3) 0 var(--space-4); border-top: 1px solid var(--color-line); }
.cart-total__label { font-size: 13px; font-weight: var(--fw-bold); color: var(--color-ink); }
.cart-total__num { font-size: 22px; font-weight: var(--fw-bold); color: var(--color-primary); letter-spacing: -.01em; line-height: 1; white-space: nowrap; }

/* ── Coupon ─────────────────────────────────────────────────────────────── */
.cart-coupon { margin: var(--space-4) 0 0; }
.cart-coupon__label { font-size: 11.5px; font-weight: var(--fw-bold); letter-spacing: .05em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 7px; }
.cart-coupon__row { display: flex; gap: 8px; }
.cart-coupon__input { flex: 1; height: 40px; padding: 0 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font-size: 13px; font-family: inherit; font-weight: var(--fw-semibold); text-transform: uppercase; transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease); }
.cart-coupon__input:focus { outline: none; border-color: var(--color-primary); box-shadow: var(--shadow-focus); }
.cart-coupon__hint { text-transform: none; letter-spacing: 0; font-weight: var(--fw-semibold); color: var(--color-mute2); }
.cart-coupon__chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 9px; }
.cart-coupon-chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 6px 5px 11px; background: var(--color-secondary-soft); color: var(--color-secondary); border: 1px solid color-mix(in srgb, var(--color-secondary) 32%, transparent); border-radius: var(--radius-pill); font-size: 12px; font-weight: var(--fw-bold); }
.cart-coupon-chip b { font-weight: var(--fw-extrabold); }
.cart-coupon-chip i { font-size: 10px; }
.cart-coupon-chip__x { width: 18px; height: 18px; border: 0; border-radius: 50%; background: color-mix(in srgb, var(--color-secondary) 18%, transparent); color: var(--color-secondary); cursor: pointer; font-size: 14px; line-height: 1; display: inline-flex; align-items: center; justify-content: center; transition: background var(--dur-fast) var(--ease); }
.cart-coupon-chip__x:hover { background: color-mix(in srgb, var(--color-secondary) 35%, transparent); }
.cart-coupon__msg { font-size: 12.5px; font-weight: var(--fw-semibold); margin-top: 8px; }
.cart-coupon__msg--ok { color: var(--color-secondary); }
.cart-coupon__msg--err { color: var(--color-warning-deep); }
.cart-coupon__msg--info { color: var(--color-muted); }

/* ── Public coupon list — thẻ "deal" emerald, hiện thẳng giá sau giảm ─────── */
.cart-promo { margin: var(--space-4) 0 0; }
.cart-promo__title { font-size: 11.5px; font-weight: var(--fw-bold); letter-spacing: .05em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 8px; }
.cart-promo__multi-hint { text-transform: none; letter-spacing: 0; font-weight: var(--fw-semibold); color: var(--color-mute2); }
.cart-promo__list { display: flex; flex-direction: column; gap: 8px; }
.cart-promo__item { display: flex; align-items: center; gap: 11px; padding: 10px 12px; background: var(--color-secondary-soft); border: 1px solid color-mix(in srgb, var(--color-secondary) 28%, transparent); border-radius: var(--radius-sm); cursor: pointer; transition: border-color var(--dur-fast) var(--ease); text-align: left; width: 100%; font-family: inherit; }
.cart-promo__item:hover { border-color: var(--color-secondary); }
.cart-promo__icon { width: 34px; height: 34px; flex-shrink: 0; border-radius: var(--radius-sm); background: var(--color-secondary); color: var(--color-on-dark); display: flex; align-items: center; justify-content: center; font-size: 13px; }
.cart-promo__info { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.cart-promo__code { font-size: 13px; font-weight: var(--fw-bold); color: var(--color-ink); letter-spacing: .02em; }
.cart-promo__deal { font-size: 12px; color: var(--color-muted); font-weight: var(--fw-semibold); }
.cart-promo__deal strong { color: var(--color-secondary-deep, var(--color-secondary)); font-weight: var(--fw-extrabold); font-size: 13.5px; }
.cart-promo__apply { font-size: 12px; font-weight: var(--fw-bold); color: var(--color-secondary); white-space: nowrap; padding: 6px 12px; border: 1px solid var(--color-secondary); border-radius: var(--radius-sm); transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.cart-promo__item:hover .cart-promo__apply { background: var(--color-secondary); color: var(--color-on-dark); }

/* ── Notice (đăng nhập) ─────────────────────────────────────────────────── */
.cart-notice { display: flex; align-items: flex-start; gap: 9px; padding: var(--space-3); margin: var(--space-4) 0 0; background: var(--color-warning-soft); border: 1px solid color-mix(in srgb, var(--color-warning) 35%, transparent); border-radius: var(--radius-sm); font-size: 12.5px; line-height: 1.5; color: var(--color-warning-deep); }
.cart-notice i { margin-top: 2px; flex-shrink: 0; }
.cart-notice a { color: var(--color-warning-deep); font-weight: var(--fw-bold); text-decoration: underline; }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.cart-btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 40px; padding: 0 var(--space-4); border-radius: var(--radius-sm); font-size: 13.5px; font-weight: var(--fw-semibold); font-family: inherit; cursor: pointer; text-decoration: none; border: 1px solid transparent; white-space: nowrap; transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.cart-btn--primary { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-dark); font-weight: var(--fw-bold); }
.cart-btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--color-on-dark); }
.cart-btn--outline { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.cart-btn--outline:hover { border-color: var(--color-primary); color: var(--color-primary); }
.cart-btn--ghost { background: var(--color-surface); border-color: var(--color-border); color: var(--color-muted); }
.cart-btn--ghost:hover { border-color: var(--color-warning); color: var(--color-warning-deep); }
.cart-btn--block { width: 100%; }
.cart-btn--lg { height: 46px; font-size: 14.5px; }
.cart-btn:disabled { opacity: .55; cursor: not-allowed; }
.cart-btn--remove { height: 30px; padding: 0 10px; font-size: 12px; }
.cart-btn--danger { background: var(--color-warning); border-color: var(--color-warning); color: var(--color-on-dark); font-weight: var(--fw-bold); }
.cart-btn--danger:hover { background: var(--color-warning-deep, var(--color-warning)); border-color: var(--color-warning-deep, var(--color-warning)); color: var(--color-on-dark); }

/* ── Modal xác nhận xoá ─────────────────────────────────────────────────── */
.cart-modal { position: fixed; inset: 0; z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity var(--dur-base) var(--ease); }
.cart-modal.is-open { opacity: 1; pointer-events: auto; }
.cart-modal__backdrop { position: absolute; inset: 0; background: color-mix(in srgb, var(--color-ink) 50%, transparent); }
.cart-modal__card { position: relative; width: 100%; max-width: 380px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); padding: var(--space-5); text-align: center; transform: translateY(10px) scale(.98); transition: transform var(--dur-base) var(--ease); }
.cart-modal.is-open .cart-modal__card { transform: translateY(0) scale(1); }
.cart-modal__icon { width: 48px; height: 48px; margin: 0 auto var(--space-3); border-radius: var(--radius-md); background: var(--color-warning-soft); color: var(--color-warning); display: inline-flex; align-items: center; justify-content: center; font-size: 18px; }
.cart-modal__title { font-size: 16px; font-weight: var(--fw-bold); color: var(--color-ink); margin: 0 0 var(--space-2); }
.cart-modal__text { font-size: 13px; color: var(--color-muted); margin: 0 0 var(--space-4); line-height: 1.5; }
.cart-modal__text b { color: var(--color-ink); font-weight: var(--fw-bold); }
.cart-modal__actions { display: flex; gap: 8px; }
.cart-modal__actions .cart-btn { flex: 1; }

/* ── Empty state ────────────────────────────────────────────────────────── */
.cart-empty { text-align: center; max-width: 480px; margin: 0 auto; padding: var(--space-10) var(--space-5); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.cart-empty__ic { width: 64px; height: 64px; margin: 0 auto var(--space-4); border-radius: var(--radius-md); background: var(--color-soft); color: var(--color-locked); display: flex; align-items: center; justify-content: center; font-size: 26px; }
.cart-empty__title { font-size: 17px; font-weight: var(--fw-bold); color: var(--color-ink); margin: 0 0 7px; }
.cart-empty__text { font-size: 13.5px; color: var(--color-muted); margin: 0 0 var(--space-5); line-height: var(--lh-normal); }

/* ── Promo offer: dòng hạn dùng + trạng thái đã áp ──────────────────────── */
.cart-promo__meta { font-size: 11px; font-weight: var(--fw-semibold); color: var(--color-muted); display: inline-flex; align-items: center; gap: 5px; margin-top: 1px; }
.cart-promo__meta i { font-size: 10px; color: var(--color-secondary); }
.cart-promo__item.is-applied { border: 2px solid var(--color-secondary); background: color-mix(in srgb, var(--color-secondary) 14%, var(--color-surface)); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-secondary) 16%, transparent); }
.cart-promo__item.is-applied .cart-promo__apply { background: var(--color-secondary); color: var(--color-on-dark); border-color: var(--color-secondary); }
/* Mã chồng phạm vi với mã đã chọn → khoá (kiểu app đặt đồ ăn) */
.cart-promo__item.is-disabled { opacity: .5; cursor: not-allowed; pointer-events: none; background: var(--color-soft); border-color: var(--color-border); }
.cart-promo__item.is-disabled .cart-promo__apply { color: var(--color-muted); border-color: var(--color-border); background: transparent; }

/* ── Hiệu ứng áp mã thành công ─────────────────────────────────────────── */
@keyframes cartTotalBump { 0% { transform: scale(1); } 35% { transform: scale(1.14); color: var(--color-secondary); } 100% { transform: scale(1); } }
.cart-total__num.is-bump { animation: cartTotalBump .6s var(--ease); transform-origin: right center; }
@keyframes cartDiscPop { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
.cart-row.is-pop { animation: cartDiscPop .4s var(--ease); }
@keyframes cartSavingsBurst {
    0%   { opacity: 0; transform: translate(-50%, 6px) scale(.9); }
    15%  { opacity: 1; transform: translate(-50%, 0) scale(1); }
    80%  { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -22px) scale(1); }
}
.cart-savings-burst { position: absolute; left: 50%; bottom: 64px; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 7px; padding: 7px 14px; background: var(--color-secondary); color: var(--color-on-dark); font-size: 12.5px; font-weight: var(--fw-bold); border-radius: var(--radius-pill); box-shadow: var(--shadow-lg); white-space: nowrap; pointer-events: none; z-index: 5; animation: cartSavingsBurst 1.8s var(--ease) forwards; }