/* css/pos.css - 前台操作介面 */
.container { display: flex; height: 100%; width: 100vw; padding: 15px; gap: 15px; max-width: 1920px; margin: 0 auto; }
.main-section { flex: 7.5; display: flex; flex-direction: column; gap: 15px; height: 100%; min-width: 0; }

/* Category Nav */
.category-nav { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 5px; flex-shrink: 0; border-bottom: 1px solid var(--border-line); padding-bottom: 15px; }
.cat-btn { padding: 8px 20px; background: transparent; border: 1px solid transparent; border-radius: var(--radius-std); color: var(--text-sub); font-size: 1.2rem; white-space: nowrap; transition: 0.2s; }
.cat-btn:hover { color: var(--text-main); background: rgba(0,0,0,0.03); }
.cat-btn.active { background: #fff; color: var(--text-main); border-color: var(--border-line); box-shadow: 0 2px 4px rgba(0,0,0,0.03); font-weight: bold; }

/* Product Grid */
.product-scroll-area { flex: 1; overflow-y: auto; padding-right: 5px; padding-bottom: 40px; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 15px; align-content: start; }
.product-card { background: var(--bg-card); border: 1px solid transparent; border-radius: var(--radius-std); padding: 10px; box-shadow: 1px 1px 3px rgba(0,0,0,0.05); display: flex; flex-direction: column; height: 200px; transition: 0.2s; cursor: pointer; position: relative; touch-action: manipulation; overflow: hidden; }
.product-card:hover { transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,0,0,0.08); }
.product-card:active { transform: scale(0.98); border-color: var(--text-sub); }
.p-img-box { width: 100%; height: 60%; background: #f4f4f4; border-radius: 4px; overflow: hidden; display: flex; align-items: center; justify-content: center; margin-bottom: 8px; }
.p-img-box img { width: 100%; height: 100%; object-fit: cover; }
.p-img-placeholder { color: #dcdcdc; font-size: 2.5rem; }
.p-info { flex: 1; display: flex; flex-direction: column; justify-content: space-between; }
.p-name { font-size: 1.1rem; font-weight: 500; line-height: 1.3; color: var(--text-main); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.p-bottom { display: flex; justify-content: space-between; align-items: flex-end; }
.p-price { color: var(--text-sub); font-weight: 400; font-size: 1.1rem; font-family: 'Noto Serif TC', serif; }
.p-stock-badge { font-size: 0.75rem; color: #fff; background: var(--text-sub); padding: 2px 6px; border-radius: 4px; }
.p-stock-badge.low { background: var(--accent-red); }
.category-header-row { grid-column: 1 / -1; margin-top: 15px; padding-bottom: 8px; border-bottom: 1px dashed var(--border-line); font-size: 1.1rem; color: var(--text-sub); font-family: var(--font-serif); }
.p-opt-badge-text { position: absolute; top: 5px; right: 5px; background: var(--accent-gold); color: #fff; font-size: 0.75rem; padding: 2px 6px; border-radius: 4px; z-index: 2; font-weight: 600; box-shadow: 0 1px 2px rgba(0,0,0,0.1); }

/* Cart Section */
.cart-section { flex: 2.5; background: var(--bg-panel); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); border: 1px solid rgba(255,255,255,0.4); border-radius: var(--radius-l); box-shadow: var(--shadow-paper); display: flex; flex-direction: column; min-width: 260px; height: 100%; overflow: hidden; }
.cart-header { padding: 20px; border-bottom: 1px dashed var(--border-line); display: flex; justify-content: space-between; align-items: center; background: rgba(255,255,255,0.5); }
.brand-text { font-family: var(--font-serif); font-weight: 700; font-size: 1rem; letter-spacing: 1px;}
.cart-toolbar { display: flex; gap: 8px; }
.cart-list { flex: 1; overflow-y: auto; padding: 10px; background: transparent; }
.cart-item { display: flex; flex-direction: row; justify-content: space-between; align-items: center; padding: 6px 10px; margin-bottom: 4px; border-radius: 4px; transition: 0.2s; background: rgba(255,255,255,0.3); cursor: default; min-height: 0; }
.cart-item:hover { background: rgba(255,255,255,0.7); box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.item-name-qty { font-weight: 500; font-size: 1rem; color: var(--text-main); line-height: 1.3; flex: 1; padding: 2px 5px 2px 0; cursor: pointer; border-radius: 4px; }
.item-name-qty:hover { background: rgba(0,0,0,0.05); color: var(--accent-blue); }
.item-name-qty:active { opacity: 0.7; }
.item-total { font-weight: 600; color: var(--text-main); font-family: var(--font-serif); font-size: 1rem; white-space: nowrap; padding: 2px 0 2px 5px; cursor: pointer; border-radius: 4px; }
.item-total:hover { background: rgba(0,0,0,0.05); color: var(--accent-red); }
.item-total:active { opacity: 0.7; }
.cart-opt-list { font-size: 0.85rem; color: var(--text-sub); margin-top: 4px; padding-left: 0; list-style: none; margin-top: 2px; line-height: 1.2; }
.cart-opt-item { display: inline-block; background: rgba(0,0,0,0.03); padding: 0 4px; border-radius: 4px; margin-right: 4px; margin-bottom: 2px; font-size: 0.8rem; }
.cart-footer { padding: 10px; background: rgba(255,255,255,0.8); border-top: 1px dashed var(--border-line); }
.summary-row { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-sub); margin-bottom: 2px; }
.summary-row.final { font-size: 1rem; font-weight: 700; color: var(--text-main); margin-top: 5px; padding-top: 5px; border-top: 2px solid var(--text-main); font-family: var(--font-serif); }
.actions { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-top: 10px; }
.action-btn { padding: 8px; border-radius: var(--radius-std); font-weight: 500; font-size: 1rem; display: flex; align-items: center; justify-content: center; gap: 8px; transition: all 0.2s; white-space: nowrap; }
.btn-pay { grid-column: 1 / -1; background: var(--text-main); color: #fff; font-size: 1.1rem; height: 45px; }
.btn-pay:hover { background: #332D25; }
.btn-sub { background: #fff; border: 1px solid var(--border-line); color: var(--text-main); }
.btn-sub:hover { border-color: var(--text-sub); background: #FDFDFD; }
.btn-del-all { color: var(--accent-red); border-color: rgba(166, 55, 55, 0.2); }
.btn-del-all:hover { background: rgba(166, 55, 55, 0.05); border-color: var(--accent-red); }

/* Member Panel */
.member-panel { background: #F9F7F5; padding: 10px 20px; border-bottom: 1px solid var(--border-line); display: flex; justify-content: space-between; align-items: center; font-size: 0.95rem; color: var(--text-main); display: none; }
.member-info { display: flex; flex-direction: column; }
.member-name { font-weight: bold; }
.member-points { font-size: 0.85rem; color: var(--accent-gold); font-weight: 500; }
.member-close { color: var(--text-sub); cursor: pointer; padding: 5px; }
.member-close:hover { color: var(--accent-red); }

/* Option Selection Modal UI */
.opt-group-box { margin-bottom: 20px; border-bottom: 1px dashed var(--border-line); padding-bottom: 15px; }
.opt-group-title { font-weight: bold; margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center; color: var(--text-main); }
.opt-req-badge { font-size: 0.75rem; background: var(--accent-red); color: #fff; padding: 2px 6px; border-radius: 4px; font-weight: normal; }
.opt-opt-badge { font-size: 0.75rem; background: var(--text-sub); color: #fff; padding: 2px 6px; border-radius: 4px; font-weight: normal; }
.opt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.opt-item-btn { border: 1px solid var(--border-line); border-radius: 4px; padding: 10px; text-align: center; cursor: pointer; transition: 0.2s; background: #fff; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 60px; }
.opt-item-btn:hover { border-color: var(--text-sub); background: #fafafa; }
.opt-item-btn.selected { border-color: var(--text-main); background: #F4F1EA; box-shadow: 0 0 0 1px var(--text-main) inset; font-weight: bold; }
.opt-item-btn.disabled { opacity: 0.5; cursor: not-allowed; background: #eee; border-color: transparent; }
.opt-name { font-size: 0.95rem; line-height: 1.2; }
.opt-price { font-size: 0.85rem; color: var(--text-sub); margin-top: 4px; }
.opt-item-btn.selected .opt-price { color: var(--accent-red); }

/* Keypad Disc UI */
.discount-input-group { display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; }
.disc-inp-row { display: flex; align-items: center; justify-content: space-between; background: #FCFCFB; border: 1px solid var(--border-line); border-radius: 4px; padding: 10px; cursor: pointer; transition: 0.2s; }
.disc-inp-row.active { border-color: var(--text-main); box-shadow: 0 0 0 1px var(--text-main) inset; background: #fff; }
.disc-inp-row.disabled { opacity: 0.6; cursor: not-allowed; background: #eee; }
.disc-label { font-weight: bold; color: var(--text-sub); }
.disc-val { font-size: 1.5rem; font-weight: bold; font-family: var(--font-serif); }
#reader { width: 100%; border: 1px solid #ccc; border-radius: 4px; overflow: hidden; margin-bottom: 10px; }
#reader__dashboard_section_csr button { background: var(--text-main); color: #fff; border: none; padding: 5px 10px; border-radius: 4px; margin: 5px; cursor: pointer; }

/* Responsive adjustments */
@media screen and (max-height: 800px) {
    .product-card { height: 170px; padding: 8px; }
    .p-img-box { height: 55%; }
    .p-name { font-size: 1rem; }
    .cart-footer { padding: 10px; }
    .summary-row { margin-bottom: 2px; font-size: 0.85rem; }
    .summary-row.final { margin-top: 5px; padding-top: 5px; font-size: 1rem; }
    .actions { margin-top: 10px; gap: 8px; }
    .btn-pay { height: 45px; }
    .action-btn { padding: 8px; }
    ::-webkit-scrollbar { width: 8px; height: 8px; }
    .category-nav { padding-bottom: 8px; }
    .cat-btn { padding: 6px 15px; font-size: 1.1rem; }
}
@media (max-width: 1300px) { .actions .btn-sub .btn-text { display: none; } .actions .btn-sub { gap: 0; padding: 8px 0; } }