:root {
  --bg: #1a1410;
  --panel: #241c16;
  --panel2: #2e241b;
  --panel3: #3a2e22;
  --accent: #e0a458;
  --accent2: #c97b3c;
  --text: #f3e9dc;
  --muted: #b9a893;
  --ok: #6fcf97;
  --warn: #f2c94c;
  --danger: #eb5757;
  --line: #3a2e22;
  --shadow: 0 6px 20px rgba(0,0,0,.35);
  --topbar-bg: linear-gradient(180deg, #2a2018, #1f1812);
  --nav-bg: #15100c;
}

/* 浅色主题：在 <html> 上设置 data-theme="light" 生效 */
:root[data-theme="light"] {
  --bg: #faf6f0;
  --panel: #ffffff;
  --panel2: #f4ede2;
  --panel3: #e9dfd0;
  --accent: #b5651d;
  --accent2: #d08a3e;
  --text: #2b2118;
  --muted: #8a7a66;
  --ok: #2e9e5b;
  --warn: #c08a12;
  --danger: #d64545;
  --line: #e6dac8;
  --shadow: 0 6px 20px rgba(120,90,50,.16);
  --topbar-bg: linear-gradient(180deg, #ffffff, #f5eee3);
  --nav-bg: #ffffff;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  overflow: hidden;
  user-select: none;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 16px; }

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

/* 顶栏 */
#topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 18px;
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--line);
  padding-top: calc(10px + env(safe-area-inset-top));
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 20px; }
.brand .logo { font-size: 24px; }
.today-stat { display: flex; gap: 22px; margin-left: 10px; }
.ts-item { display: flex; flex-direction: column; line-height: 1.15; }
.ts-label { font-size: 11px; color: var(--muted); }
.ts-val { font-size: 18px; font-weight: 700; color: var(--accent); }
.clock { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--muted); font-size: 15px; }

/* 视图区 */
#view { flex: 1; overflow: hidden; padding: 14px; }

/* 底部导航 */
#bottomnav {
  display: flex;
  background: var(--nav-bg);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-btn {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 10px 4px; color: var(--muted); font-size: 12px;
}
.nav-btn .nav-ico { font-size: 22px; }
.nav-btn.active { color: var(--accent); background: rgba(224,164,88,.08); }

/* 通用卡片/按钮 */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.btn {
  background: var(--panel3); color: var(--text); border-radius: 10px;
  padding: 10px 14px; font-size: 15px; border: 1px solid var(--line);
}
.btn:active { transform: scale(.97); }
.btn-accent { background: var(--accent); color: #2a1c0c; font-weight: 700; border: none; }
.btn-ok { background: var(--ok); color: #11331f; font-weight: 700; border: none; }
.btn-danger { background: var(--danger); color: #fff; border: none; }
.btn-ghost { background: transparent; }
.chip { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; font-size: 12px; background: var(--panel3); color: var(--muted); }
.chip.on { background: var(--accent); color: #2a1c0c; font-weight: 700; }

/* 点单视图布局 */
.order-layout { display: grid; grid-template-columns: 150px 1fr 300px; gap: 14px; height: 100%; }
.tables { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-content: start; overflow-y: auto; }
.table-btn {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 6px; text-align: center; font-size: 16px; font-weight: 600; position: relative;
}
.table-btn .t-status { display: block; font-size: 11px; color: var(--muted); margin-top: 4px; font-weight: 400; }
.table-btn.busy { border-color: var(--accent2); }
.table-btn.busy .t-status { color: var(--accent); }
.table-btn.active { background: var(--panel3); border-color: var(--accent); }

.menu-area { display: flex; flex-direction: column; gap: 12px; overflow: hidden; }
.cat-tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; }
.cat-tabs .chip { white-space: nowrap; }
.items { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; overflow-y: auto; align-content: start; padding-right: 4px; }
.item-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px; display: flex; flex-direction: column; gap: 6px; position: relative;
}
.item-card .i-name { font-size: 15px; font-weight: 600; }
.item-card .i-meta { font-size: 12px; color: var(--muted); display: flex; justify-content: space-between; }
.item-card .i-price { color: var(--accent); font-weight: 700; }
.item-card .i-add { position: absolute; top: 8px; right: 8px; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #2a1c0c; font-size: 20px; font-weight: 700; line-height: 1; }
.item-card.out { opacity: .45; }
.item-card.out .i-add { background: var(--panel3); color: var(--muted); }

/* 购物车 */
.cart { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; display: flex; flex-direction: column; overflow: hidden; }
.cart-head { padding: 12px 14px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
.cart-head .ch-title { font-weight: 700; }
.cart-list { flex: 1; overflow-y: auto; padding: 6px 10px; }
.cart-empty { color: var(--muted); text-align: center; padding: 40px 10px; font-size: 14px; }
.cart-row { display: flex; align-items: center; gap: 8px; padding: 8px 4px; border-bottom: 1px dashed var(--line); }
.cart-row .cr-name { flex: 1; font-size: 14px; }
.cart-row .cr-name small { color: var(--muted); display: block; font-size: 11px; }
.stepper { display: flex; align-items: center; gap: 6px; }
.stepper button { width: 28px; height: 28px; border-radius: 8px; background: var(--panel3); font-size: 18px; font-weight: 700; }
.stepper .qty { min-width: 22px; text-align: center; font-weight: 700; }
.cr-price { width: 64px; text-align: right; font-weight: 600; }
.cart-note { width: 100%; margin-top: 4px; background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); padding: 6px 8px; }
.cart-foot { padding: 12px 14px; border-top: 1px solid var(--line); }
.cart-total { display: flex; justify-content: space-between; font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.cart-total .amt { color: var(--accent); }
.cart-actions { display: flex; gap: 8px; }
.cart-actions .btn { flex: 1; }

/* 列表类视图 */
.list-wrap { height: 100%; overflow-y: auto; }
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }
.section-title { font-size: 15px; color: var(--muted); margin: 14px 0 8px; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
.tbl th { color: var(--muted); font-weight: 600; font-size: 12px; position: sticky; top: 0; background: var(--bg); }
.tbl tr:active { background: var(--panel); }
.tag { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag.cash { background: #2f4858; color: #cfe8ff; }
.tag.wechat { background: #1aad19; color: #fff; }
.tag.alipay { background: #1677ff; color: #fff; }
.tag.card { background: #6b4e9e; color: #fff; }
.tag.other { background: var(--panel3); color: var(--muted); }
.tag.ok { background: rgba(111,207,151,.18); color: var(--ok); }
.tag.warn { background: rgba(242,201,76,.18); color: var(--warn); }
.tag.danger { background: rgba(235,87,87,.18); color: var(--danger); }

/* 库存 */
.stock-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.stock-card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.stock-card .sc-top { display: flex; justify-content: space-between; align-items: baseline; }
.stock-card .sc-name { font-weight: 600; }
.stock-card .sc-cat { font-size: 11px; color: var(--muted); }
.stock-card .sc-qty { font-size: 26px; font-weight: 800; margin: 8px 0 2px; }
.stock-card .sc-unit { font-size: 13px; color: var(--muted); }
.stock-card .sc-bar { height: 6px; border-radius: 4px; background: var(--panel3); margin: 8px 0; overflow: hidden; }
.stock-card .sc-bar > i { display: block; height: 100%; background: var(--ok); }
.stock-card.warn .sc-bar > i { background: var(--warn); }
.stock-card.danger .sc-bar > i { background: var(--danger); }
.stock-card .sc-ops { display: flex; gap: 6px; align-items: center; margin-top: 8px; }
.stock-card .sc-ops .btn { padding: 6px 10px; font-size: 14px; }
.stock-card .sc-ops input { width: 64px; background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); padding: 6px 8px; text-align: center; }

/* 统计 */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 12px; margin-bottom: 14px; }
.stat-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.stat-card .sc-label { font-size: 12px; color: var(--muted); }
.stat-card .sc-value { font-size: 24px; font-weight: 800; color: var(--accent); margin-top: 4px; }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 780px){ .stat-grid { grid-template-columns: 1fr; } }
.chart-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.chart-card h3 { margin: 0 0 12px; font-size: 15px; }
.bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 13px; }
.bar-row .bl { width: 90px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-row .bt { flex: 1; height: 18px; background: var(--panel3); border-radius: 6px; overflow: hidden; }
.bar-row .bt > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent2), var(--accent)); }
.bar-row .bv { width: 80px; text-align: right; font-variant-numeric: tabular-nums; }

/* 设置 */
.set-section { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
.set-section h3 { margin: 0 0 12px; font-size: 16px; }
.field { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.field label { width: 96px; color: var(--muted); font-size: 14px; }
.field input, .field select { flex: 1; background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); padding: 9px 10px; }
.menu-edit-row { display: grid; grid-template-columns: 1.4fr 1fr .8fr .8fr .8fr auto; gap: 6px; align-items: center; margin-bottom: 6px; }
.menu-edit-head { display: grid; grid-template-columns: 1.4fr 1fr .8fr .8fr .8fr auto; gap: 6px; align-items: center; margin: 6px 0 2px; font-size: 12px; color: var(--muted); font-weight: 600; }
.menu-edit-head span { padding: 0 8px; }
.btn-warn { background: var(--warn); color: #1a1410; border-color: var(--warn); font-weight: 600; }
.btn-warn:hover { filter: brightness(1.05); }
.card-h { padding: 10px 14px; font-weight: 600; border-bottom: 1px solid var(--line); background: var(--panel2); }
.menu-edit-row input { background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); padding: 7px 8px; min-width: 0; }
.menu-edit-row .del { color: var(--danger); padding: 7px 10px; }

/* 外观：主题切换 / 图标选择 */
.theme-row { display: flex; gap: 8px; flex-wrap: wrap; }
.theme-row .chip { padding: 8px 18px; font-size: 14px; cursor: pointer; }
.logo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 8px; }
.logo-opt {
  display: flex; align-items: center; justify-content: center;
  padding: 10px 4px; background: var(--panel2); border: 1px solid var(--line);
  border-radius: 12px; cursor: pointer;
}
.logo-opt .lo { font-size: 28px; line-height: 1; }
.logo-opt.on { border-color: var(--accent); background: rgba(224,164,88,.14); }

/* 弹窗 */
#modal-root:empty { display: none; }
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; width: 100%; max-width: 460px; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow); }
.modal.wide { max-width: 640px; }
.modal-head { padding: 16px 18px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-size: 17px; }
.modal-body { padding: 18px; }
.modal-foot { padding: 14px 18px; border-top: 1px solid var(--line); display: flex; gap: 10px; }
.modal-foot .btn { flex: 1; }
.pay-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.pay-btn { background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 16px; text-align: center; font-size: 16px; font-weight: 600; }
.pay-btn.on { border-color: var(--accent); background: rgba(224,164,88,.12); color: var(--accent); }
.detail-line { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.detail-line.total { font-weight: 800; font-size: 17px; border: none; }
.detail-line.total .amt { color: var(--accent); }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%) translateY(20px); background: #000; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 14px; opacity: 0; pointer-events: none; transition: .25s; z-index: 80; }
.toast.show { opacity: .92; transform: translateX(-50%) translateY(0); }

.empty-hint { color: var(--muted); text-align: center; padding: 50px 10px; font-size: 14px; }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--panel3); border-radius: 8px; }

/* ===== 手机竖屏适配（≤760px）：三栏改上下堆叠，桌台横滑，购物车下方可滚动 =====
   仅改布局，不碰任何业务逻辑；iPad(≥768) 仍走上方三栏。 */
@media (max-width: 760px) {
  #topbar { gap: 8px; padding: 8px 12px; padding-top: calc(8px + env(safe-area-inset-top)); flex-wrap: wrap; }
  .today-stat { gap: 12px; margin-left: 0; }
  .brand { font-size: 17px; }
  .clock { font-size: 13px; }
  #view { padding: 8px; }
  .order-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    gap: 10px;
  }
  .tables {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 82px;
    overflow-x: auto;
    overflow-y: hidden;
    max-height: 76px;
    padding-bottom: 2px;
  }
  .table-btn { padding: 10px 4px; font-size: 14px; }
  .menu-area { overflow: hidden; }
  .items { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .cart { max-height: 44vh; }
  .cart-actions .btn { font-size: 14px; padding: 12px 10px; }
  .menu-edit-row, .menu-edit-head { grid-template-columns: 1.2fr 1fr .7fr .7fr .7fr auto; }
  .field label { width: 84px; font-size: 13px; }
}
