/* ============================================================
 * Cart & Checkout — Hoàng Quý Computer
 * Đồng bộ design tokens HomeHQComputer (--primary, --bg, ...)
 * ============================================================ */

.cart-page,
.checkout-page,
.order-success-page,
.track-order-page,
.my-orders-page {
    background: var(--bg);
    padding: 32px 0 64px;
    min-height: 60vh;
}

.cart-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 18px;
}
.cart-breadcrumb a { color: var(--primary); text-decoration: none; }
.cart-breadcrumb a:hover { text-decoration: underline; }
.cart-breadcrumb .sep { opacity: .5; }

.cart-page-title,
.checkout-page-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    margin: 0 0 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.cart-page-title i, .checkout-page-title i { color: var(--primary); }

/* ---------- Layout ---------- */
.cart-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 24px;
    align-items: start;
}
@media (max-width: 991px) { .cart-grid { grid-template-columns: 1fr; } }

/* ---------- Card / Panel ---------- */
.cart-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.cart-card + .cart-card { margin-top: 18px; }
.cart-card-head {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, #fafbfc, #fff);
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}
.cart-card-head i { color: var(--primary); }
.cart-card-body { padding: 18px; }
.cart-card-footer {
    padding: 16px 18px;
    border-top: 1px solid var(--border);
    background: #fcfcfd;
}

/* ---------- Cart table ---------- */
.cart-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.cart-table thead th {
    text-align: left;
    padding: 12px 16px;
    background: #f9fafb;
    color: var(--text-2);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .03em;
    border-bottom: 1px solid var(--border);
}
.cart-table thead th.t-num { text-align: right; }
.cart-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-2);
    vertical-align: middle;
}
.cart-table tbody tr:hover { background: #fafcff; }
.cart-table .col-img { width: 96px; }
.cart-table .col-img img {
    width: 76px; height: 76px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border-2);
    background: #f5f6f8;
}
.cart-table .col-name a {
    color: var(--dark);
    font-weight: 600;
    text-decoration: none;
    line-height: 1.4;
}
.cart-table .col-name a:hover { color: var(--primary); }
.cart-table .col-price { color: var(--text-2); font-weight: 600; }
.cart-table .col-subtotal { color: var(--primary); font-weight: 800; font-size: 15px; text-align: right; }
.cart-table .col-act { width: 50px; text-align: right; }

.cart-empty {
    text-align: center;
    padding: 56px 16px;
    color: var(--muted);
}
.cart-empty i { font-size: 48px; color: var(--border); display: block; margin-bottom: 12px; }
.cart-empty a { color: var(--primary); font-weight: 600; }

/* ---------- Quantity ---------- */
.qty-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
}
.qty-control button {
    width: 32px; height: 34px;
    border: 0; background: #f5f6f8; cursor: pointer;
    font-size: 18px; color: var(--text);
    transition: background .15s;
}
.qty-control button:hover { background: var(--primary-light); color: var(--primary); }
.qty-control input {
    width: 48px; height: 34px; border: 0;
    text-align: center; font-weight: 700; font-size: 14px;
    background: #fff; outline: none; -moz-appearance: textfield;
}
.qty-control input::-webkit-outer-spin-button,
.qty-control input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* ---------- Remove btn ---------- */
.btn-icon-rm {
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: #fff; color: var(--danger);
    cursor: pointer; transition: all .2s;
    display: inline-flex; align-items: center; justify-content: center;
}
.btn-icon-rm:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ---------- Cart actions row ---------- */
.cart-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 18px;
    flex-wrap: wrap;
    gap: 12px;
}

/* ---------- Coupon ---------- */
.coupon-row { display: flex; gap: 8px; }
.coupon-row input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
}
.coupon-row input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,90,31,.12); }
.coupon-msg { margin-top: 8px; font-size: 13px; }
.coupon-msg.ok { color: var(--success); }
.coupon-msg.err { color: var(--danger); }

/* ---------- Summary ---------- */
.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    color: var(--text-2);
    font-size: 14px;
}
.summary-row.total {
    border-top: 1px solid var(--border);
    margin-top: 6px; padding-top: 14px;
    font-size: 18px; color: var(--dark); font-weight: 800;
}
.summary-row .val { color: var(--text); font-weight: 600; }
.summary-row.total .val { color: var(--primary); font-size: 22px; }
.summary-row.discount .val { color: var(--danger); }

/* ---------- Checkout: form fields ---------- */
.field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.field-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.field-grid.cols-1 { grid-template-columns: 1fr; }
@media (max-width: 640px) {
    .field-grid, .field-grid.cols-3 { grid-template-columns: 1fr; }
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
    font-size: 13px; font-weight: 600; color: var(--text);
}
.field label .req { color: var(--danger); }
.field input, .field textarea, .field select {
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px; color: var(--text);
    background: #fff; outline: none;
    transition: border-color .15s, box-shadow .15s;
    font-family: inherit;
}
.field input:focus, .field textarea:focus, .field select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,90,31,.12);
}
.field textarea { resize: vertical; min-height: 84px; }

/* ---------- Payment options ---------- */
.pay-list { display: flex; flex-direction: column; gap: 10px; }
.pay-opt {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 16px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: all .2s;
    background: #fff;
}
.pay-opt:hover { border-color: var(--primary); background: var(--primary-light); }
.pay-opt input[type="radio"] { accent-color: var(--primary); width: 18px; height: 18px; }
.pay-opt input[type="radio"]:checked + .pay-label { color: var(--primary); }
.pay-opt:has(input:checked) { border-color: var(--primary); background: var(--primary-light); }
.pay-opt .pay-icon {
    width: 38px; height: 38px;
    background: #fff;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    border: 1px solid var(--border);
}
.pay-opt .pay-text { display: flex; flex-direction: column; }
.pay-opt .pay-text strong { font-size: 14px; color: var(--dark); }
.pay-opt .pay-text small { color: var(--muted); font-size: 12px; }

/* ---------- Checkout sidebar order item ---------- */
.co-line {
    display: flex; gap: 12px; align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-2);
}
.co-line:last-child { border-bottom: 0; }
.co-line img {
    width: 52px; height: 52px;
    object-fit: cover; border-radius: 6px;
    border: 1px solid var(--border-2);
}
.co-line .co-info { flex: 1; min-width: 0; }
.co-line .co-name { font-weight: 600; font-size: 13px; color: var(--dark); line-height: 1.4; }
.co-line .co-meta { font-size: 12px; color: var(--muted); margin-top: 2px; }
.co-line .co-sub { font-weight: 800; color: var(--primary); font-size: 14px; white-space: nowrap; }

/* ---------- Sticky checkout sidebar on desktop ---------- */
@media (min-width: 992px) {
    .cart-sidebar { position: sticky; top: 90px; }
}

/* ---------- Trust badges row ---------- */
.cart-trust {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-top: 24px;
}
.cart-trust .trust-item {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    display: flex; gap: 10px; align-items: center;
    font-size: 13px; color: var(--text-2);
}
.cart-trust .trust-item .ic {
    width: 36px; height: 36px;
    border-radius: 8px; background: var(--primary-light);
    color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
}
.cart-trust .trust-item strong { display: block; color: var(--dark); }

/* ---------- Order success ---------- */
.os-card {
    max-width: 640px;
    margin: 0 auto;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    text-align: center;
}
.os-card .os-icon {
    width: 88px; height: 88px;
    border-radius: 50%;
    background: #ecfdf5;
    color: var(--success);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 44px;
    margin: 36px auto 16px;
}
.os-card h2 { margin: 0 0 6px; color: var(--dark); }
.os-card .os-sub { color: var(--muted); margin-bottom: 18px; }
.os-info {
    margin: 18px 24px;
    padding: 18px;
    background: var(--primary-light);
    border-radius: 10px;
    text-align: left;
}
.os-info p { margin: 6px 0; color: var(--text); }
.os-info p strong { color: var(--dark); display: inline-block; min-width: 130px; }
.os-actions {
    padding: 0 24px 32px;
    display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}