:root{
  --bg:#eef0ec;--card:#fff;--ink:#141815;--muted:#6a726c;--line:#dfe3dc;--brand:#14783c;--brand2:#0f5f30;--soft:#f4f6f2;
  --bad:#c0352b;--warn:#b26a00;--sel:#e3f2e8;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);
}
*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);overflow:hidden}
button,input,select{font:inherit;color:inherit}
.hidden{display:none!important}.muted{color:var(--muted)}.err{color:var(--bad);min-height:20px;font-weight:600}
kbd{font:600 11px/1 ui-monospace,Menlo,Consolas,monospace;background:rgba(0,0,0,.08);padding:2px 5px;border-radius:4px;margin-left:4px;vertical-align:1px}
.screen{position:fixed;inset:0}
.center{display:flex;align-items:center;justify-content:center}
.box{background:#fff;border-radius:16px;padding:28px;width:min(420px,92vw);display:flex;flex-direction:column;gap:12px;box-shadow:0 10px 40px rgba(0,0,0,.1)}
.box h1{margin:0;font-size:24px}
label{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:600;color:var(--muted)}
input,select{border:1.5px solid #cdd3cb;border-radius:10px;padding:10px 12px;font-size:16px;background:#fff;color:var(--ink);font-weight:400}
input:focus,select:focus{outline:3px solid #a7d8b8;border-color:var(--brand)}
button{cursor:pointer}
.big{padding:14px;border-radius:12px;border:0;font-size:17px;font-weight:700}
.pri{background:var(--brand);color:#fff}.pri:hover{background:var(--brand2)}
.ghost{background:#fff;border:1.5px solid var(--line)}
.danger{background:var(--bad);color:#fff}
/* lock */
.lock{background:#101712;color:#fff;display:flex;align-items:center;justify-content:center}
.lockbox{display:flex;flex-direction:column;align-items:center;gap:10px}
.shopname{font-size:20px;font-weight:700;opacity:.9}
.clock{font-size:64px;font-weight:200;letter-spacing:-1px;font-variant-numeric:tabular-nums}
.pinlabel{opacity:.75;margin-top:8px}
.dots{display:flex;gap:16px;margin:6px 0}
.dots i{width:16px;height:16px;border-radius:50%;border:2px solid #fff;display:block}
.dots i.on{background:#fff}
.dots.shake{animation:shake .35s}
@keyframes shake{20%,60%{transform:translateX(-10px)}40%,80%{transform:translateX(10px)}}
.pad{display:grid;grid-template-columns:repeat(3,78px);gap:14px;margin-top:6px}
.pad button{width:78px;height:78px;border-radius:50%;border:0;background:rgba(255,255,255,.12);color:#fff;font-size:28px;font-weight:300}
.pad button:active{background:rgba(255,255,255,.3)}
.pad button.t{font-size:15px;background:transparent}
.tillname{opacity:.45;font-size:13px;margin-top:10px}
.lock .err{color:#ff9a90}
/* selling */
.sell{display:grid;grid-template-columns:1fr 380px;grid-template-rows:auto 1fr}
.bar{grid-column:1/-1;display:flex;align-items:center;gap:12px;padding:8px 14px;background:#fff;border-bottom:1px solid var(--line)}
.bar b{font-size:16px}.bar .sp{flex:1}
.who{font-weight:600;background:var(--sel);color:var(--brand);padding:5px 10px;border-radius:20px}
.net{font-size:12px;font-weight:700}.net.off{color:var(--bad)}
.tb{border:1.5px solid var(--line);background:#fff;border-radius:9px;padding:7px 12px;font-weight:600}
.tb:hover{background:var(--soft)}
.left{display:flex;flex-direction:column;min-height:0;padding:12px 12px 8px 14px;gap:8px}
.scanrow{display:flex;gap:8px;align-items:center}
.scanrow input{flex:1;font-size:20px;padding:13px 14px;border-width:2px}
.qpend{background:var(--warn);color:#fff;font-weight:800;padding:12px 14px;border-radius:10px;font-size:18px}
.pick{background:#fff;border:1px solid var(--line);border-radius:12px;max-height:45vh;overflow:auto;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.pick div{display:flex;gap:12px;padding:11px 14px;border-bottom:1px solid var(--line);cursor:pointer;font-size:16px}
.pick div.on,.pick div:hover{background:var(--sel)}
.pick div span:first-child{flex:1}
.basket{flex:1;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:14px}
.basket table{width:100%;border-collapse:collapse}
.basket th{position:sticky;top:0;background:#fafbf9;font-size:12px;color:var(--muted);text-align:left;padding:8px 12px;border-bottom:1px solid var(--line)}
.basket td{padding:10px 12px;border-bottom:1px solid var(--line);font-size:17px;vertical-align:middle}
.basket td.n,.basket th.n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.basket tr.sel td{background:var(--sel)}
.basket tr.flash td{animation:flash .6s}
@keyframes flash{from{background:#fff3c4}to{background:var(--sel)}}
.basket .nm{font-weight:600}.basket .cd{font-size:12px;color:var(--muted)}
.basket .q{display:inline-flex;align-items:center;gap:6px}
.basket .q button{width:32px;height:32px;border-radius:8px;border:1.5px solid var(--line);background:#fff;font-size:18px;font-weight:700;line-height:1}
.basket .empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--muted);font-size:18px;flex-direction:column;gap:6px;min-height:200px}
.hint{font-size:12px;color:var(--muted)}
.right{display:flex;flex-direction:column;gap:10px;padding:12px 14px 12px 0;min-height:0}
.totalbox{background:#101712;color:#fff;border-radius:16px;padding:16px 18px}
.totalbox .lbl{font-size:12px;letter-spacing:.12em;opacity:.6}
.total{font-size:52px;font-weight:800;letter-spacing:-1px;font-variant-numeric:tabular-nums;line-height:1.1}
.totalbox .sub{display:flex;justify-content:space-between;opacity:.7;font-size:14px;margin-top:4px}
.lastbox{background:#fff7e0;border:1.5px solid #f2d48a;border-radius:14px;padding:12px 14px;font-size:15px}
.lastbox .chg{font-size:30px;font-weight:800;color:var(--warn)}
.keys{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto}
.k{position:relative;border:1.5px solid var(--line);background:#fff;border-radius:12px;padding:14px 8px;font-weight:700;font-size:15px}
.k:hover{background:var(--soft)}
.k.pay{grid-column:1/-1;background:var(--brand);color:#fff;border:0;font-size:24px;padding:20px}
.k.pay:hover{background:var(--brand2)}.k.pay kbd{background:rgba(255,255,255,.2)}
.badge{position:absolute;top:6px;right:8px;background:var(--bad);color:#fff;border-radius:10px;padding:0 7px;font-size:12px}
@media (max-width:980px){.sell{grid-template-columns:1fr 300px}.total{font-size:40px}}
/* modal */
.mbg{position:fixed;inset:0;background:rgba(10,15,12,.5);display:flex;align-items:flex-start;justify-content:center;padding:5vh 12px;z-index:40;overflow:auto}
.m{background:#fff;border-radius:18px;width:min(560px,100%);box-shadow:0 20px 60px rgba(0,0,0,.3)}
.m.wide{width:min(860px,100%)}
.m h2{margin:0;padding:16px 20px;border-bottom:1px solid var(--line);font-size:19px;display:flex;align-items:center}
.m h2 .x{margin-left:auto;border:0;background:none;font-size:26px;color:var(--muted);line-height:1}
.m .mb{padding:16px 20px;display:flex;flex-direction:column;gap:12px}
.m .mf{padding:12px 20px 18px;display:flex;gap:10px;justify-content:flex-end}
.m .mf button{padding:12px 20px;border-radius:12px;border:0;font-weight:700;font-size:16px}
.payrow{display:grid;grid-template-columns:110px 1fr 1fr;gap:10px;align-items:center}
.payrow .ml{font-weight:700}
.quick{display:flex;gap:8px;flex-wrap:wrap}
.quick button{border:1.5px solid var(--line);background:#fff;border-radius:10px;padding:9px 14px;font-weight:700}
.duebox{display:flex;justify-content:space-between;align-items:baseline;background:var(--soft);border-radius:12px;padding:12px 16px}
.duebox .v{font-size:34px;font-weight:800;font-variant-numeric:tabular-nums}
.duebox.chg .v{color:var(--warn)}.duebox.ok .v{color:var(--brand)}
.mt{width:100%;border-collapse:collapse;font-size:15px}
.mt td,.mt th{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left}
.mt .n{text-align:right;font-variant-numeric:tabular-nums}
.mt tr.click{cursor:pointer}.mt tr.click:hover{background:var(--soft)}
.menu{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.menu button{padding:18px 12px;border-radius:12px;border:1.5px solid var(--line);background:#fff;font-weight:700;font-size:16px;text-align:left}
.menu button small{display:block;font-weight:400;color:var(--muted);font-size:13px;margin-top:3px}
.minipad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.minipad button{padding:14px;border-radius:10px;border:1.5px solid var(--line);background:#fff;font-size:20px;font-weight:600}
#toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;gap:8px;z-index:90}
#toast div{background:#141815;color:#fff;padding:12px 18px;border-radius:12px;font-size:16px;box-shadow:0 8px 24px rgba(0,0,0,.3)}
#toast div.bad{background:var(--bad)}