@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700;900&family=IBM+Plex+Mono:wght@500;600;700&display=swap');

[hidden] { display: none !important; }

:root {
  --ink: #1c1710;
  --ink-soft: #6b6255;
  --paper: #f4f0e6;
  --surface: #ffffff;
  --surface-sunken: #ece5d3;
  --rule: #ddd3ba;
  --gold: #b8791f;
  --gold-strong: #96600f;
  --chili: #a63823;
  --chili-bg: #f4ded7;
  --ok: #3e6b3f;
  --ok-bg: #dfe9d8;
  --warn: #92620c;
  --warn-bg: #f3e2c2;
  --focus: #2f6fb0;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans TC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
button, input { font-family: inherit; }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }

#app { height: 100vh; display: flex; flex-direction: column; }

/* ---------- centered auth screens ---------- */
.auth-screen {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 32px 28px;
  box-shadow: 0 4px 24px rgba(28,23,16,0.08);
}
.auth-card h1 {
  font-size: 20px;
  margin: 0 0 4px;
}
.auth-card .sub {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 22px;
}
.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-soft);
  margin-bottom: 5px;
}
.field input {
  width: 100%;
  padding: 11px 12px;
  font-size: 15px;
  border: 1.5px solid var(--rule);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}
.field input:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(47,111,176,0.15);
}
.btn {
  appearance: none;
  border: none;
  border-radius: 7px;
  font-weight: 700;
  font-size: 15px;
  padding: 12px 18px;
  cursor: pointer;
  transition: filter 0.1s;
}
.btn:active { filter: brightness(0.92); }
.btn:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: var(--gold-strong); }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; color: var(--ink-soft); border: 1.5px solid var(--rule); }
.btn-danger { background: var(--chili); color: #fff; }
.btn-ok { background: var(--ok); color: #fff; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.error-box {
  background: var(--chili-bg);
  color: var(--chili);
  border-radius: 6px;
  padding: 9px 12px;
  font-size: 13px;
  margin-bottom: 14px;
}
.hint { font-size: 12px; color: var(--ink-soft); margin-top: 10px; text-align: center; }

/* ---------- top bar ---------- */
.topbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}
.topbar .shop-name { font-weight: 900; font-size: 16px; white-space: nowrap; }
.topbar .tabs { display: flex; gap: 4px; }
.tab-btn {
  appearance: none; border: none; background: transparent; cursor: pointer;
  padding: 8px 14px; border-radius: 7px; font-size: 14px; font-weight: 700; color: var(--ink-soft);
}
.tab-btn.active { background: var(--surface-sunken); color: var(--ink); }
.topbar .spacer { flex: 1; }
.shift-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 20px; font-size: 12.5px; font-weight: 700; cursor: pointer; border: none;
}
.shift-pill.open { background: var(--ok-bg); color: var(--ok); }
.shift-pill.closed { background: var(--warn-bg); color: var(--warn); }
.shift-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.staff-chip { font-size: 13px; color: var(--ink-soft); display: flex; align-items: center; gap: 8px; }
.staff-chip button { background: none; border: none; color: var(--ink-soft); text-decoration: underline; cursor: pointer; font-size: 12.5px; padding: 0; }

/* ---------- main layout ---------- */
.main {
  flex: 1;
  display: flex;
  min-height: 0;
}
.view { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.view[hidden] { display: none; }

/* order-building view */
.order-view { display: flex; flex: 1; min-height: 0; }
.menu-pane { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.cat-tabs {
  flex-shrink: 0;
  display: flex; gap: 6px; padding: 10px 14px; overflow-x: auto;
  border-bottom: 1px solid var(--rule);
  background: var(--surface);
}
.cat-tab {
  appearance: none; border: 1.5px solid var(--rule); background: var(--surface);
  border-radius: 20px; padding: 7px 15px; font-size: 13.5px; font-weight: 700;
  color: var(--ink-soft); cursor: pointer; white-space: nowrap; flex-shrink: 0;
}
.cat-tab.active { background: var(--ink); color: #fff; border-color: var(--ink); }

.product-grid {
  flex: 1; overflow-y: auto; padding: 14px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 10px;
  align-content: start;
}
.product-card {
  appearance: none; border: 1px solid var(--rule); background: var(--surface);
  border-radius: 9px; padding: 12px 10px; cursor: pointer; text-align: left;
  display: flex; flex-direction: column; gap: 6px; min-height: 76px;
}
.product-card:hover { border-color: var(--gold); }
.product-card:active { background: var(--surface-sunken); }
.product-card .pname { font-size: 14px; font-weight: 700; line-height: 1.3; }
.product-card .pprice { font-size: 13px; color: var(--gold-strong); font-weight: 700; }
.product-card.popular { border-color: #e2c98c; }
.product-card .badge { font-size: 10px; color: var(--gold); }

/* cart pane */
.cart-pane {
  width: 340px; flex-shrink: 0;
  display: flex; flex-direction: column;
  background: var(--surface); border-left: 1px solid var(--rule);
}
.cart-head {
  padding: 14px 16px 10px; border-bottom: 1px solid var(--rule);
  display: flex; align-items: center; justify-content: space-between;
}
.cart-head h2 { font-size: 15px; margin: 0; }
.group-tabs { display: flex; gap: 5px; padding: 10px 16px; flex-wrap: wrap; border-bottom: 1px solid var(--rule); }
.group-tab {
  appearance: none; border: 1.5px solid var(--rule); background: var(--surface);
  width: 30px; height: 30px; border-radius: 6px; font-size: 13px; font-weight: 700; cursor: pointer;
  color: var(--ink-soft);
}
.group-tab.active { background: var(--gold); color: #fff; border-color: var(--gold); }
.group-tab.add { color: var(--gold); border-style: dashed; }

.cart-lines { flex: 1; overflow-y: auto; padding: 8px 12px; }
.cart-empty { padding: 40px 16px; text-align: center; color: var(--ink-soft); font-size: 13.5px; }
.cart-line {
  padding: 10px 6px; border-bottom: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 3px;
}
.cart-line-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.cart-line-name { font-size: 14px; font-weight: 700; }
.cart-line-price { font-size: 14px; font-weight: 700; white-space: nowrap; }
.cart-line-mods { font-size: 12px; color: var(--ink-soft); }
.cart-line-controls { display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.qty-btn {
  appearance: none; border: 1px solid var(--rule); background: var(--surface);
  width: 24px; height: 24px; border-radius: 5px; cursor: pointer; font-size: 14px; line-height: 1;
  display: flex; align-items: center; justify-content: center; color: var(--ink);
}
.cart-line-remove { margin-left: auto; background: none; border: none; color: var(--chili); font-size: 12px; cursor: pointer; }

.cart-summary { padding: 14px 16px; border-top: 1px solid var(--rule); }
.summary-row { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 6px; }
.summary-row.total { font-size: 19px; font-weight: 900; margin-top: 8px; }
.cart-actions { display: flex; gap: 8px; margin-top: 12px; }

/* orders queue view */
.orders-toolbar { flex-shrink: 0; padding: 8px 14px; display: flex; gap: 8px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--rule); background: var(--surface); }
.orders-time-search { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.orders-time-input { border: 1px solid var(--rule); border-radius: 6px; padding: 4px 8px; font-size: 12px; background: var(--paper); color: var(--ink); min-width: 0; }
.orders-list { flex: 1; overflow-y: auto; padding: 8px 12px; display: flex; flex-direction: column; gap: 6px; }
.order-card { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; padding: 8px 12px; }
.order-card-clickable { cursor: pointer; transition: box-shadow .15s; }
.order-card-clickable:hover { box-shadow: 0 2px 10px rgba(0,0,0,0.09); border-color: var(--gold); }
.order-card-row { display: flex; justify-content: space-between; align-items: center; }
.order-card-ids { display: flex; align-items: center; gap: 8px; }
.order-seq-num { font-size: 22px; font-weight: 900; color: var(--gold-strong); font-family: "IBM Plex Mono", monospace; }
.order-code-badge { font-size: 15px; font-weight: 700; color: var(--focus); font-family: "IBM Plex Mono", monospace; background: #dde6f1; padding: 2px 8px; border-radius: 6px; letter-spacing: .04em; }
.order-card-right { display: flex; align-items: center; gap: 8px; }
.order-card-amount { font-size: 15px; font-weight: 700; color: var(--ink); }
.order-card-sub { font-size: 11px; color: var(--ink-soft); margin-top: 2px; }
.order-seq { font-size: 20px; font-weight: 900; }
.order-meta { font-size: 12px; color: var(--ink-soft); }
.status-pill { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 20px; letter-spacing: 0.02em; white-space: nowrap; }
.status-pending_payment { background: var(--warn-bg); color: var(--warn); }
.status-confirmed { background: #dde6f1; color: var(--focus); }
.status-preparing { background: var(--warn-bg); color: var(--warn); }
.status-ready { background: var(--ok-bg); color: var(--ok); }
.status-completed { background: var(--surface-sunken); color: var(--ink-soft); }
.status-cancelled, .status-abandoned { background: var(--chili-bg); color: var(--chili); }
.order-lines { margin-top: 8px; font-size: 13px; color: var(--ink-soft); }
.order-actions { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.order-actions .btn { font-size: 12.5px; padding: 7px 12px; }

/* shift view */
.shift-view { flex: 1; overflow-y: auto; padding: 24px; }
.shift-card { max-width: 480px; margin: 0 auto; background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 24px; }
.shift-card h2 { margin-top: 0; }
.shift-stat { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--rule); font-size: 14px; }
.shift-stat.total { font-weight: 900; font-size: 17px; border-bottom: none; margin-top: 6px; }

/* ---------- modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(28,23,16,0.45);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.modal {
  background: var(--surface); border-radius: 12px; width: 100%; max-width: 460px;
  max-height: 88vh; display: flex; flex-direction: column; overflow: hidden;
}
.modal-head { padding: 18px 20px 12px; border-bottom: 1px solid var(--rule); }
.modal-head h3 { margin: 0 0 3px; font-size: 17px; }
.modal-head .price { font-size: 13px; color: var(--gold-strong); font-weight: 700; }
.modal-body { padding: 16px 20px; overflow-y: auto; flex: 1; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--rule); display: flex; gap: 10px; }

.mod-group { margin-bottom: 18px; }
.mod-group-title { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.mod-group-title .name { font-weight: 700; font-size: 14.5px; }
.mod-group-title .rule { font-size: 11.5px; color: var(--ink-soft); }
.mod-group-title .rule.unmet { color: var(--chili); font-weight: 700; }
.mod-options { display: flex; flex-wrap: wrap; gap: 8px; }
.mod-option {
  appearance: none; border: 1.5px solid var(--rule); background: var(--surface);
  border-radius: 8px; padding: 9px 13px; font-size: 13.5px; cursor: pointer; color: var(--ink);
}
.mod-option.selected { background: var(--gold); border-color: var(--gold); color: #fff; }
.mod-option .delta { font-size: 11px; opacity: 0.8; margin-left: 4px; }

.qty-row { display: flex; align-items: center; gap: 14px; justify-content: center; padding: 4px 0 6px; }
.qty-row .qty-big { font-size: 22px; font-weight: 900; min-width: 32px; text-align: center; }
.qty-big-btn { width: 38px; height: 38px; border-radius: 8px; font-size: 18px; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 11px 20px; border-radius: 8px;
  font-size: 13.5px; z-index: 100; box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}
.toast.err { background: var(--chili); }

.spinner-overlay { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(244,240,230,0.6); z-index: 200; font-size: 13px; color: var(--ink-soft); }

/* ---------- settings view ---------- */
.settings-view { flex: 1; overflow-y: auto; padding: 24px; }
.settings-inner { max-width: 580px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
.settings-page-title { font-size: 20px; font-weight: 900; margin: 0 0 4px; }
.settings-loading { padding: 40px; text-align: center; color: var(--ink-soft); }

.settings-section {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 10px;
  overflow: hidden;
}
.settings-section-title {
  padding: 10px 18px 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule);
  background: var(--surface-sunken);
}
.setting-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--rule);
}
.setting-row:last-child { border-bottom: none; }
.setting-info { flex: 1; min-width: 0; }
.setting-key { font-size: 14.5px; font-weight: 700; }
.setting-desc { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.setting-control { flex-shrink: 0; }
.setting-input {
  width: 140px; padding: 8px 10px; font-size: 14px;
  border: 1.5px solid var(--rule); border-radius: 6px;
  background: var(--paper); color: var(--ink);
}
.setting-input:focus { outline: none; border-color: var(--focus); box-shadow: 0 0 0 3px rgba(47,111,176,0.15); }

/* toggle switch */
.toggle-label { display: flex; align-items: center; cursor: pointer; }
.toggle-label input[type=checkbox] { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  width: 42px; height: 24px; border-radius: 12px; background: var(--rule);
  position: relative; transition: background 0.2s;
}
.toggle-label input:checked ~ .toggle-track { background: var(--ok); }
.toggle-thumb {
  position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; border-radius: 50%; background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  transition: left 0.15s;
}
.toggle-label input:checked ~ .toggle-track .toggle-thumb { left: 21px; }

.settings-foot { display: flex; justify-content: flex-end; padding-bottom: 8px; }

/* ---- admin shared ---- */
.admin-view { display: flex; overflow: hidden; }
.admin-view-full { display: flex; flex-direction: column; overflow-y: auto; }
.admin-layout { display: flex; height: 480px; flex-shrink: 0; border-bottom: 1px solid var(--rule); }

/* 子 tab 列 */
.sub-tabs { display: flex; border-bottom: 1px solid var(--rule); flex-shrink: 0; background: var(--paper); }
.sub-tab-btn { flex: 1; padding: 10px 0; font-size: 14px; font-weight: 500; background: none; border: none; border-bottom: 2px solid transparent; cursor: pointer; color: var(--ink-soft); transition: color .12s, border-color .12s; }
.sub-tab-btn.active { color: var(--warn); border-bottom-color: var(--warn); }
.sub-tab-btn:hover:not(.active) { background: var(--surface-sunken); }

/* 通路標籤 + 排序頭列 */
.channel-context-badge { font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 20px; background: var(--warn-bg); color: var(--warn); }
.channel-sort-head { display: flex; align-items: center; gap: 8px; }

/* ↑/↓ 排序按鈕 */
.sort-arrows { display: flex; flex-direction: column; gap: 1px; flex-shrink: 0; }
.sort-arrow-btn { background: none; border: 1px solid var(--rule); border-radius: 4px; width: 22px; height: 18px; font-size: 11px; line-height: 1; cursor: pointer; color: var(--ink-soft); padding: 0; display: flex; align-items: center; justify-content: center; }
.sort-arrow-btn:hover { border-color: var(--gold); color: var(--gold); background: var(--warn-bg); }

/* 品項列大型上/下架切換 */
.channel-row { gap: 8px; }
.big-toggle-label { display: flex; align-items: center; gap: 8px; cursor: pointer; flex-shrink: 0; }
.big-toggle-label input[type=checkbox] { display: none; }
.big-toggle-track {
  width: 48px; height: 26px; border-radius: 13px; background: var(--surface-sunken);
  border: 1.5px solid var(--rule); position: relative; flex-shrink: 0; transition: background .2s, border-color .2s;
}
.big-toggle-label input:checked ~ .big-toggle-track { background: var(--ok); border-color: var(--ok); }
.big-toggle-thumb {
  position: absolute; width: 20px; height: 20px; border-radius: 50%; background: #fff;
  top: 2px; left: 2px; transition: left .18s;
}
.big-toggle-label input:checked ~ .big-toggle-track .big-toggle-thumb { left: 24px; }
.big-toggle-text { font-size: 13px; font-weight: 500; color: var(--ink-soft); min-width: 28px; }
.big-toggle-text.on { color: var(--ok); }

/* 品項列操作按鈕組 */
.prod-row-actions { display: flex; gap: 4px; flex-shrink: 0; }
.admin-list-view { display: flex; flex-direction: column; overflow: hidden; }
.admin-list-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--rule); flex-shrink: 0;
}
.admin-list-head h2 { margin: 0; font-size: 16px; }
.admin-empty { padding: 40px; text-align: center; color: var(--ink-soft); font-size: 14px; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-icon { background: none; border: none; cursor: pointer; font-size: 14px; padding: 2px 4px; }
.btn-icon-del { opacity: 0.5; }
.btn-icon-del:hover { opacity: 1; }
.field-row { display: flex; flex-wrap: wrap; gap: 16px; padding: 8px 0; }
.field-row .toggle-label { gap: 8px; font-size: 14px; color: var(--ink-soft); }

/* ---- 菜單管理 ---- */
.admin-sidebar {
  width: 180px; flex-shrink: 0; border-right: 1px solid var(--rule);
  overflow-y: auto; display: flex; flex-direction: column;
}
.admin-sidebar-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border-bottom: 1px solid var(--rule); flex-shrink: 0;
}
.admin-sidebar-title { font-size: 13px; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; }
.admin-sidebar-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; cursor: pointer; font-size: 14px; transition: background .12s;
  border-bottom: 1px solid var(--rule);
}
.admin-sidebar-item:hover { background: var(--surface-sunken); }
.admin-sidebar-item.active { background: var(--warn-bg); color: var(--warn); font-weight: 600; }
.admin-content { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.admin-content-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; border-bottom: 1px solid var(--rule); flex-shrink: 0;
}
.admin-content-title { font-size: 15px; font-weight: 600; }
.admin-product-list { padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.admin-product-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; background: var(--surface); border-radius: 8px;
  border: 1px solid var(--rule);
}
.admin-product-row.inactive { opacity: .55; }
.admin-product-name { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.admin-product-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-soft); }
.badge-sm { background: var(--gold); color: #fff; border-radius: 4px; padding: 1px 5px; font-size: 11px; }
.badge-sold-out { background: var(--chili) !important; }
.channel-tag { font-size: 11px; padding: 1px 6px; border-radius: 4px; background: var(--surface-sunken); color: var(--ink-soft); }
.channel-tag.on { background: var(--ok-bg); color: var(--ok); }

/* ---- 通路新增商品 modal ---- */
.channel-add-list { display: flex; flex-direction: column; gap: 4px; max-height: 400px; overflow-y: auto; }
.channel-add-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 8px; cursor: pointer;
  background: var(--surface); border: 1px solid var(--rule);
  transition: background .12s;
}
.channel-add-row:hover { background: var(--ok-bg); border-color: var(--ok); }
.channel-add-name { font-size: 14px; font-weight: 500; }
.channel-add-price { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.channel-add-icon { font-size: 20px; color: var(--ok); font-weight: 700; }

/* ---- 全域註記群組 ---- */
.admin-groups-section { padding: 16px; border-top: 1px solid var(--rule); }
.admin-group-list { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.admin-group-row {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: 10px 14px; background: var(--surface); border-radius: 8px; border: 1px solid var(--rule);
}
.admin-group-info { flex: 1; }
.admin-group-name { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.admin-group-options { display: flex; flex-wrap: wrap; gap: 4px; }
.admin-group-actions { display: flex; gap: 6px; flex-shrink: 0; margin-left: 10px; }
.option-chip { font-size: 12px; padding: 2px 8px; background: var(--surface-sunken); border-radius: 20px; color: var(--ink-soft); }

/* ---- 品項全頁面板 ---- */
.panel-overlay {
  position: fixed; inset: 0; z-index: 300;
  background: var(--paper); display: flex; flex-direction: column; overflow: hidden;
}
.panel-sheet { display: flex; flex-direction: column; flex: 1; overflow: hidden; }
.panel-header {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--rule); flex-shrink: 0;
}
.panel-header h2 { margin: 0; font-size: 16px; flex: 1; }
.panel-title { font-size: 16px; font-weight: 700; flex: 1; text-align: center; }
.panel-body { flex: 1; overflow-y: auto; padding: 0 0 40px; }
.panel-section { padding: 18px 20px; border-bottom: 1px solid var(--rule); }
.panel-section-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); margin-bottom: 14px; }
/* 訂單明細 */
.detail-meta-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.detail-line { padding: 8px 0; border-bottom: 1px solid var(--rule); }
.detail-line:last-child { border-bottom: none; }
.detail-line-main { display: flex; align-items: baseline; gap: 8px; }
.detail-qty { font-size: 13px; font-weight: 700; color: var(--ink-soft); min-width: 24px; }
.detail-name { flex: 1; font-size: 14px; }
.detail-price { font-size: 14px; font-weight: 600; }
.detail-modifier { font-size: 12px; color: var(--ink-soft); padding-left: 32px; }
.detail-note { font-size: 12px; color: var(--gold); padding-left: 32px; margin-top: 2px; }
.detail-totals { background: var(--surface); }
.detail-total-row { display: flex; justify-content: space-between; font-size: 14px; padding: 4px 0; }
.detail-total-grand { font-size: 17px; font-weight: 900; margin-top: 8px; }
.detail-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---- 員工管理 ---- */
.staff-list { overflow-y: auto; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.staff-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; background: var(--surface); border-radius: 8px;
  border: 1px solid var(--rule);
}
.staff-row.inactive { opacity: .55; }
.staff-row-name { font-size: 14px; font-weight: 500; margin-bottom: 3px; }
.staff-row-meta { font-size: 12px; color: var(--ink-soft); }
.staff-row-actions { display: flex; gap: 8px; }

/* ---- 報表 ---- */
.report-toolbar { display: flex; align-items: center; gap: 8px; }
.report-toolbar input[type=date] { padding: 6px 10px; border: 1.5px solid var(--rule); border-radius: 6px; background: var(--paper); color: var(--ink); font-size: 14px; }
.report-summary { display: flex; gap: 12px; padding: 16px; flex-wrap: wrap; }
.report-card {
  flex: 1; min-width: 120px; background: var(--surface); border: 1px solid var(--rule);
  border-radius: 10px; padding: 14px 18px;
}
.report-card-label { font-size: 12px; color: var(--ink-soft); margin-bottom: 6px; }
.report-card-value { font-size: 22px; font-weight: 700; }
.report-items-section { padding: 0 16px 16px; overflow-y: auto; }
.report-items-title { font-size: 13px; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; }
.report-item-list { display: flex; flex-direction: column; gap: 4px; }
.report-item-row {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: var(--surface); border-radius: 7px; border: 1px solid var(--rule);
}
.report-item-rank { width: 20px; color: var(--ink-soft); font-size: 12px; }
.report-item-name { flex: 1; font-size: 14px; }
.report-item-qty { color: var(--ink-soft); font-size: 13px; }
.report-item-rev { font-size: 14px; font-weight: 600; color: var(--gold-strong); }

@media (max-width: 860px) {
  .cart-pane { width: 280px; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); }
}

/* ── 優惠結帳 ── */
.checkout-discount-btn { margin: 4px 4px 0 0; font-size: 13px; }
.checkout-methods { display: flex; gap: 8px; margin-bottom: 14px; }
.method-btn { flex: 1; padding: 10px; border: 2px solid var(--rule); border-radius: 8px; background: none; font-size: 14px; font-weight: 600; cursor: pointer; color: var(--ink); transition: border-color .12s, background .12s; }
.method-btn.active { border-color: var(--warn); background: var(--warn-soft, rgba(255,184,0,.12)); color: var(--warn); }
.cash-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.cash-input { width: 120px; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 6px; font-size: 16px; background: var(--surface-sunken); color: var(--ink); }
.cash-change { font-size: 16px; font-weight: 700; color: var(--ok, #22a34a); }
.cash-change.err { color: var(--bad, #d83f3f); }

/* ── 加點選品 ── */
.add-items-list { padding: 12px 20px; overflow-y: auto; flex: 1; }
.add-item-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--rule); }
.add-item-info { flex: 1; }
.add-item-name { font-size: 15px; font-weight: 500; }
.add-item-price { display: block; font-size: 13px; color: var(--ink-soft); margin-top: 2px; }
.add-item-ctrl { display: flex; align-items: center; gap: 8px; }
.qty-btn-sm { width: 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--rule); background: none; font-size: 16px; font-weight: 700; cursor: pointer; color: var(--ink); display: flex; align-items: center; justify-content: center; }
.qty-btn-sm:hover { border-color: var(--warn); color: var(--warn); }
.qty-val-sm { min-width: 20px; text-align: center; font-size: 15px; font-weight: 700; }
.add-cart-summary { position: sticky; bottom: 0; background: var(--paper); border-top: 2px solid var(--warn); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; }

/* product card image (Task 4) */
.pos-card-img { width: 60px; height: 60px; object-fit: cover; border-radius: 6px; flex-shrink: 0; align-self: center; }

/* modifier modal: image + description (Task 4) */
.pos-modal-img { width: 100%; max-height: 200px; object-fit: cover; border-radius: 12px 12px 0 0; display: block; flex-shrink: 0; }
.pos-modal-desc { font-size: 13px; color: var(--ink-soft); line-height: 1.4; margin: 3px 0 0; }

/* batch mode product list (Task 4) */
.pos-batch-section { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.pos-batch-list { flex: 1; overflow-y: auto; padding: 10px 14px; display: flex; flex-direction: column; gap: 8px; }
.pos-batch-row { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--surface); border: 1px solid var(--rule); border-radius: 9px; }
.pos-batch-row.sold-out { opacity: 0.45; }
.pos-batch-thumb { width: 52px; height: 52px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.pos-batch-info { flex: 1; min-width: 0; }
.pos-batch-name { font-size: 14px; font-weight: 700; display: block; }
.pos-batch-price { font-size: 13px; color: var(--gold-strong); font-weight: 700; display: block; margin-top: 2px; }
.pos-batch-qty { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.pos-batch-qty .mono { min-width: 22px; text-align: center; font-size: 15px; font-weight: 700; }
.pos-batch-confirm-bar { padding: 12px 14px; border-top: 1px solid var(--rule); background: var(--surface); display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-shrink: 0; }
.pos-batch-summary-text { font-size: 13px; color: var(--ink-soft); margin-top: 4px; }

/* batch cart lines */
.cart-line-top { cursor: pointer; }
.batch-expand-toggle { font-size: 11px; color: var(--ink-soft); margin-left: 4px; }
.batch-expand-list { padding: 4px 0 4px 8px; }
.batch-expand-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-soft); padding: 2px 0; }

/* Task 5: category modal radio group */
.radio-group { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.radio-label { display: flex; align-items: center; gap: 8px; font-size: 14px; cursor: pointer; }
.radio-label input[type=radio] { width: 16px; height: 16px; accent-color: var(--gold); cursor: pointer; }

/* Task 5: product panel image upload */
.prod-desc-textarea { width: 100%; box-sizing: border-box; resize: vertical; font-family: inherit; font-size: 14px; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 7px; background: var(--paper); color: var(--ink); min-height: 60px; }
.prod-img-preview { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.prod-img-thumb { width: 80px; height: 80px; object-fit: cover; border-radius: 8px; border: 1px solid var(--rule); }
.prod-img-upload { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 80px; border: 2px dashed var(--rule); border-radius: 8px; cursor: pointer; color: var(--ink-soft); font-size: 13px; text-align: center; margin-top: 4px; transition: border-color .15s; }
.prod-img-upload:hover { border-color: var(--gold); color: var(--gold); }

/* Drag-and-drop */
.dnd-dragging { opacity: 0.4; }
[draggable] { cursor: grab; }
[draggable]:active { cursor: grabbing; }
.drag-handle { color: var(--ink-soft); padding: 0 6px; font-size: 14px; user-select: none; }

/* Modifier groups — option rows instead of chips */
.admin-group-options-list { display: flex; flex-direction: column; gap: 2px; margin-top: 4px; }
.admin-option-row { display: flex; align-items: center; gap: 6px; padding: 4px 6px; border-radius: 5px; background: var(--surface-sunken); font-size: 13px; }
.admin-option-name { flex: 1; }

/* Badge variants */
.badge-sm.on { background: var(--ok-bg); color: var(--ok); }

/* Product sort mode tab bar */
.prod-sort-mode-tabs { display: flex; gap: 6px; padding: 8px 0 4px; }

/* Staff UI */
.admin-view-title { font-size: 18px; font-weight: 600; padding: 16px 16px 4px; }
.staff-section { padding: 0 16px 16px; border-bottom: 1px solid var(--rule); }
.staff-section:last-child { border-bottom: none; }
.staff-section-title { font-size: 13px; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; margin: 16px 0 8px; }
.staff-form-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-bottom: 12px; }
@media (max-width: 640px) { .staff-form-grid { grid-template-columns: 1fr; } }
.staff-pin-field { max-width: 220px; margin-bottom: 12px; }
.staff-pin-field input { -moz-appearance: textfield; appearance: textfield; }
.staff-pin-field input::-webkit-inner-spin-button { display: none; }

/* Role management */
.role-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.role-row { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; }
.role-row-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; cursor: pointer; user-select: none; }
.role-row-head:hover { background: var(--rule); }
.role-row-name { flex: 1; font-size: 14px; font-weight: 500; }
.role-row-count { font-size: 12px; color: var(--ink-soft); }
.role-row-chevron { font-size: 10px; color: var(--ink-soft); }
.role-perm-editor { padding: 12px 16px 14px; border-top: 1px solid var(--rule); }
.role-perm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; margin-bottom: 14px; }
.perm-check-label { display: flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }
.perm-check-label input { width: 15px; height: 15px; cursor: pointer; }
.role-perm-foot { display: flex; gap: 8px; justify-content: flex-end; }

/* ---- POS 批次設定 ---- */
.modal-head-sub { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.batch-prod-list-pos { display: flex; flex-direction: column; }
.batch-prod-row-pos {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--rule); cursor: pointer;
}
.batch-prod-row-pos.changed { background: #fffbea; }
.batch-prod-pos-info { flex: 1; }
.batch-prod-pos-name { font-size: 14px; font-weight: 500; }
.batch-prod-pos-price { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.batch-prod-pos-toggle { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.batch-prod-pos-toggle input[type=checkbox] { display: none; }
.batch-prod-pos-toggle input:checked + .big-toggle-track { background: var(--ok); }
.batch-prod-pos-toggle input:checked + .big-toggle-track .big-toggle-thumb { transform: translateX(18px); }
.batch-confirm-list-pos { display: flex; flex-direction: column; gap: 6px; }
.batch-confirm-row-pos { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--rule); font-size: 14px; }
.batch-badge { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 20px; }
.batch-badge.on { background: var(--ok-bg); color: var(--ok); }
.batch-badge.off { background: #fff0f0; color: #c0392b; }