:root{--bg: #0d0f12;--panel: #171a1f;--panel-2: #20242b;--line: #2e333b;--text: #f3f4f6;--muted: #9aa3ae;--accent: #ffcc33;--accent-ink: #1a1400;--ok: #34d399;--danger: #f87171;--radius: 12px;--tap: 56px;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text)}body{font:16px/1.5 -apple-system,BlinkMacSystemFont,PingFang TC,Noto Sans TC,Microsoft JhengHei,sans-serif;-webkit-tap-highlight-color:transparent}button,input,select{font:inherit;color:inherit}.shell{max-width:960px;margin:0 auto;padding:16px 16px calc(32px + env(safe-area-inset-bottom))}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.topbar h1{font-size:20px;margin:0}.muted{color:var(--muted)}.small{font-size:14px}.tabs{display:flex;gap:8px;overflow-x:auto;margin:0 -16px 16px;padding:0 16px;scrollbar-width:none}.tabs button{flex:none;min-height:48px;padding:0 18px;border-radius:999px;background:var(--panel);border:1px solid var(--line);cursor:pointer}.tabs button[aria-selected=true]{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:700}.btn{min-height:var(--tap);padding:0 20px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel-2);cursor:pointer;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.btn.danger{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 50%,var(--line))}.btn.ghost{background:transparent}.btn.sm{min-height:44px;padding:0 14px;font-size:15px}.btn:disabled{opacity:.5;cursor:default}.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.grow{flex:1}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.list{display:grid;gap:12px}.card h3{margin:0;font-size:18px}.field{margin-bottom:14px}.field label{display:grid;gap:6px}.field .lbl{font-size:14px;color:var(--muted)}.field input,.field select{min-height:var(--tap);padding:0 14px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--line);width:100%}.field input:focus{outline:2px solid var(--accent);outline-offset:1px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}@media (max-width: 520px){.grid2{grid-template-columns:1fr}}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:13px;font-weight:700;border:1px solid var(--line)}.badge.on{background:color-mix(in srgb,var(--ok) 18%,transparent);color:var(--ok);border-color:transparent}.badge.off{color:var(--muted)}.pin{font:700 28px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.2em;color:var(--accent)}.thumb{width:56px;height:56px;border-radius:10px;object-fit:cover;background:var(--panel-2);flex:none}.error{color:var(--danger);margin:8px 0}.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%);background:var(--panel-2);border:1px solid var(--line);padding:12px 20px;border-radius:999px;z-index:50}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:grid;place-items:end center;z-index:40}.sheet{width:min(640px,100%);max-height:92vh;overflow:auto;background:var(--panel);border-radius:20px 20px 0 0;padding:20px 16px calc(20px + env(safe-area-inset-bottom));border:1px solid var(--line)}@media (min-width: 700px){.sheet-backdrop{place-items:center}.sheet{border-radius:20px}}.sheet h2{margin:0 0 16px;font-size:20px}.check-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.check-row input[type=checkbox]{width:24px;height:24px;accent-color:var(--accent)}.check-row input[type=number]{width:110px;min-height:44px;padding:0 10px;border-radius:10px;background:var(--bg);border:1px solid var(--line)}.switch{position:relative;width:52px;height:32px;flex:none}.switch input{opacity:0;width:100%;height:100%;margin:0;position:absolute;cursor:pointer;z-index:1}.switch span{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:999px;background:var(--line);transition:background .15s}.switch span:after{content:"";position:absolute;top:4px;left:4px;width:24px;height:24px;border-radius:50%;background:var(--text);transition:transform .15s}.switch input:checked+span{background:var(--ok)}.switch input:checked+span:after{transform:translate(20px)}table.log{width:100%;border-collapse:collapse;font-size:14px}table.log td{padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}table.log td.detail{color:var(--muted);word-break:break-all}.center-screen{min-height:100vh;display:grid;place-items:center;padding:16px}.center-screen .card{width:min(420px,100%)}.register{height:100dvh;display:grid;grid-template-rows:auto 1fr auto;grid-template-areas:"top" "grid" "cart"}.pos-top{grid-area:top;display:flex;align-items:center;gap:8px;padding:10px 16px;border-bottom:1px solid var(--line)}.pos-event{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pending-badge{min-height:44px;padding:0 14px;border-radius:999px;border:none;cursor:pointer;background:#f59e0b;color:#1a1000;font-weight:800}.product-grid{grid-area:grid;overflow-y:auto;padding:12px 16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;align-content:start}.product{position:relative;display:grid;grid-template-rows:auto auto auto;gap:4px;text-align:left;min-height:120px;padding:8px;border-radius:var(--radius);cursor:pointer;background:var(--panel);border:2px solid var(--line);touch-action:manipulation;-webkit-user-select:none;user-select:none}.product:active{transform:scale(.97)}.product.in-cart{border-color:var(--accent)}.product img,.product-ph{width:100%;aspect-ratio:4 / 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var(--line);background:var(--panel-2);font-size:22px;cursor:pointer}.cart-qty{min-width:28px;text-align:center;font-weight:800}.cart-amt{min-width:72px;text-align:right;font-variant-numeric:tabular-nums}.cart-bar{display:flex;align-items:center;gap:8px;padding:10px 16px}.cart-total{font-size:28px;font-weight:900;font-variant-numeric:tabular-nums}.checkout-btn{min-width:120px;font-size:20px}@media (min-width: 900px) and (orientation: landscape){.register{grid-template-columns:1fr 360px;grid-template-rows:auto 1fr;grid-template-areas:"top top" "grid cart"}.cart{border-top:none;border-left:1px solid var(--line);display:flex;flex-direction:column}.cart-lines{flex:1;max-height:none}.cart-bar{flex-wrap:wrap}.checkout-btn{flex-basis:100%}}.checkout section{margin-bottom:16px}.checkout-head{margin-bottom:12px}.total-big{font-size:34px;font-weight:900;font-variant-numeric:tabular-nums}.seg,.modes{display:grid;gap:8px}.seg{grid-template-columns:repeat(4,1fr)}.modes{grid-template-columns:repeat(3,1fr)}.seg button,.modes button{min-height:var(--tap);border-radius:var(--radius);border:2px solid var(--line);background:var(--panel-2);font-weight:700;cursor:pointer}.seg button[aria-pressed=true],.modes button[aria-pressed=true]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,var(--panel-2))}.cash{margin-top:10px}.cash-quick{display:flex;gap:8px;flex-wrap:wrap}.cash-quick .btn[aria-pressed=true]{border-color:var(--accent)}.cash-quick input{flex:1;min-width:110px;min-height:44px;padding:0 12px;border-radius:10px;background:var(--bg);border:1px solid var(--line)}.change{margin-top:8px;font-size:22px;font-weight:800;color:var(--ok)}.change.short{color:var(--danger)}.mode-panel{margin-top:12px;display:grid;gap:8px}.mode-panel>input,.code-input{min-height:var(--tap);padding:0 14px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--line);width:100%}.code-input{font:700 22px ui-monospace,Menlo,monospace;letter-spacing:.1em}.hint{margin:0;color:var(--muted);font-size:14px}.hint.ok{color:var(--ok)}.hint.bad{color:var(--danger)}.link{background:none;border:none;color:var(--accent);text-decoration:underline;cursor:pointer;padding:8px;font-size:15px}.issue-btn{width:100%;font-size:22px;min-height:64px}.scanner{position:relative;border-radius:var(--radius);overflow:hidden;background:#000;aspect-ratio:16 / 9}.scanner video{width:100%;height:100%;object-fit:cover;display:block}.scanner-line{position:absolute;left:10%;right:10%;top:50%;height:2px;background:var(--danger);box-shadow:0 0 8px var(--danger)}.scanner-error{display:grid;place-items:center;padding:16px;color:var(--muted);text-align:center;aspect-ratio:auto;min-height:80px;background:var(--panel-2)}.result{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:grid;place-content:center;justify-items:center;gap:10px;padding:24px;text-align:center;background:var(--bg)}.result-icon{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;font-size:56px;font-weight:900}.result.ok .result-icon{background:var(--ok);color:#062a1c}.result.bad .result-icon{background:var(--danger);color:#2a0606}.result.warn .result-icon{background:#f59e0b;color:#1a1000}.invoice-no{font:900 44px/1.1 ui-monospace,Menlo,monospace;letter-spacing:.06em}.result-title{font-size:24px;font-weight:800}.result-reason{max-width:420px;margin:0;color:var(--muted)}.result.bad .result-reason{color:var(--danger);font-size:18px}.result-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:12px}.result-actions .btn{min-width:140px;text-decoration:none}.event-select{min-height:var(--tap);padding:0 12px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.stat{display:grid;gap:2px;text-align:left;padding:14px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}.stat strong{font-size:26px;font-variant-numeric:tabular-nums}button.stat{cursor:pointer}button.stat:disabled{cursor:default}.stat-warn{border-color:#f59e0b}.stat-warn strong{color:#f59e0b}.report-tables{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px;margin-top:10px}table.mini{width:100%;border-collapse:collapse;font-size:15px}table.mini td{padding:6px 0;border-bottom:1px solid var(--line)}table.mini tr:last-child td{border-bottom:none}.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap;padding-left:12px}.mono{font-family:ui-monospace,Menlo,monospace}.nowrap{white-space:nowrap}.seg-inline{display:flex;gap:6px}.seg-inline button{min-height:44px;padding:0 12px}.search{min-height:44px;padding:0 12px;border-radius:10px;background:var(--bg);border:1px solid var(--line);min-width:0}table.sales{width:100%;border-collapse:collapse;font-size:15px}table.sales td{padding:12px 10px;border-bottom:1px solid var(--line)}table.sales tr{cursor:pointer}table.sales tr:hover td{background:var(--panel-2)}table.sales td.items{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge.warn{background:color-mix(in srgb,#f59e0b 20%,transparent);color:#f59e0b;border-color:transparent}.badge.bad{background:color-mix(in srgb,var(--danger) 20%,transparent);color:var(--danger);border-color:transparent}dl.detail{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0}dl.detail dt{color:var(--muted)}dl.detail dd{margin:0;word-break:break-all}@media (max-width: 600px){table.sales td.items{display:none}}.offline-chip{padding:6px 12px;border-radius:999px;background:var(--danger);color:#2a0606;font-weight:800;font-size:14px;white-space:nowrap}.modes button:disabled{opacity:.35;cursor:not-allowed}.error.small{font-size:13px;margin:2px 0 0}