:root{
  --bg:#f6f5f7; --card:#fff; --ink:#1d1b1e; --muted:#6b6772; --line:#e3e0e6;
  --brand:#7c2d51; --brand-ink:#fff; --ok:#0f7b4f; --warn:#b45309; --bad:#b3261e;
  --r:12px; --tap:46px;
}
*{box-sizing:border-box}
/* author styles beat the UA sheet, so .login{display:grid} would defeat hidden */
[hidden]{display:none !important}
html,body{margin:0;height:100%}
body{
  font:16px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--ink);
  -webkit-text-size-adjust:100%; overscroll-behavior:none;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;border-radius:10px;padding:0 14px;min-height:var(--tap);background:#eceaef}
button:active{transform:translateY(1px)}
.primary{background:var(--brand);color:var(--brand-ink);font-weight:600}
.ghost{background:transparent;border:1px solid var(--line)}
.big{min-height:52px;font-size:17px}
.tiny{min-height:32px;padding:0 8px;font-size:14px}
input,select,textarea{
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;
  min-height:var(--tap);background:#fff;width:100%
}
input[type=checkbox]{width:auto;min-height:auto;transform:scale(1.25);margin-right:8px}
label{display:block;margin:10px 0;font-size:14px;color:var(--muted)}
label input,label select,label textarea{margin-top:4px;color:var(--ink)}
.chk{display:flex;align-items:center;color:var(--ink)}
.muted{color:var(--muted)} .small{font-size:13px} .r{text-align:right}
.sub{display:block;font-weight:400;font-size:12px;color:var(--muted)}
.grow{flex:1} .pad{padding:16px}
.err{color:var(--bad);font-size:14px;min-height:20px}
h3{margin:22px 0 8px;font-size:15px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}

/* ---------------- login ---------------- */
.login{display:grid;place-items:center;min-height:100%;padding:20px}
.card{background:var(--card);border-radius:var(--r);padding:22px;width:100%;max-width:380px;
      box-shadow:0 1px 3px rgba(0,0,0,.08)}
.card.wide{max-width:560px;margin:16px auto}
.card h1{margin:0;font-size:26px;color:var(--brand)}
.card button[type=submit]{width:100%;margin-top:14px}

/* ---------------- shell ---------------- */
#app{display:flex;flex-direction:column;height:100%}
header{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--brand);color:#fff}
header b{font-size:17px}
header .muted{color:#f0dbe4}
header .ghost{border-color:rgba(255,255,255,.35);color:#fff;min-height:36px;padding:0 10px}
.pill{background:#fff;color:var(--brand);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}
.pill.warn{background:#fde68a;color:#7c2d12}
.pill.st-new{background:#fde68a;color:#7c2d12}
.pill.st-confirmed{background:#dbeafe;color:#1e3a8a}
.pill.st-packed{background:#ede9fe;color:#4c1d95}
.pill.st-shipped{background:#d1fae5;color:#065f46}
.pill.st-delivered{background:#e5e7eb;color:#374151}
.pill.st-cancelled{background:#fee2e2;color:#991b1b}
.badge{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;margin-left:5px;
       border-radius:999px;background:var(--bad);color:#fff;font-size:11px;font-weight:700;vertical-align:middle}
.seg.tight button{font-size:12px;padding:0 4px}
.list .row .pill{margin-left:6px;font-size:11px;padding:2px 8px;vertical-align:middle}
main{flex:1;overflow:auto;-webkit-overflow-scrolling:touch}
.screen{display:none;padding:12px;max-width:1100px;margin:0 auto}
.screen.active{display:block}
#tabs{display:flex;border-top:1px solid var(--line);background:#fff;
      padding-bottom:env(safe-area-inset-bottom)}
#tabs button{flex:1;border-radius:0;background:transparent;color:var(--muted);min-height:56px;font-size:14px}
#tabs button.on{color:var(--brand);font-weight:700;box-shadow:inset 0 3px 0 var(--brand)}

.bar{display:flex;gap:8px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.bar.tight{margin-top:-4px}
.bar input,.bar select{flex:1;min-width:120px}
.bar button{flex:0 0 auto}

/* ---------------- sell ---------------- */
.sell-grid{display:grid;gap:12px}
@media(min-width:900px){.sell-grid{grid-template-columns:1fr 1fr;align-items:start}}
.scanrow{display:flex;gap:8px}
.scanrow input{font-size:18px}
.scanrow button{flex:0 0 var(--tap);padding:0;font-size:20px}
.results{margin-top:8px;display:grid;gap:6px;max-height:46vh;overflow:auto}
.results .row{display:flex;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);
              border-radius:10px;padding:10px;text-align:left;width:100%;min-height:var(--tap)}
.results .row:disabled{opacity:.5}
.results .row .nm{flex:1;font-weight:600;font-size:15px}

/* cart row: name on top, controls underneath — fits a 360px phone */
.cart{background:#fff;border-radius:var(--r);overflow:hidden}
.ci{padding:8px 10px;border-bottom:1px solid var(--line)}
.ci:last-child{border-bottom:0}
.ci-top{display:flex;align-items:flex-start;gap:8px}
.ci-top .nm{flex:1;min-width:0;font-weight:600;font-size:15px}
.ci-bot{display:flex;align-items:center;gap:8px;margin-top:6px}
.qty{display:flex;gap:4px;align-items:center}
.qty button{min-height:34px;width:34px;padding:0;font-size:18px;line-height:1}
.qty input{width:46px;text-align:center;min-height:34px;padding:4px}
.rate{display:flex;align-items:center;gap:2px;color:var(--muted);font-size:13px}
.rate input{width:70px;text-align:right;min-height:34px;padding:4px 6px}
.amt{margin-left:auto;font-size:16px;white-space:nowrap}
.x{background:transparent;color:var(--bad);min-height:32px;padding:0 6px;font-size:18px}

.totals{background:#fff;border-radius:var(--r);padding:12px;margin-top:10px}
.totals>div{display:flex;justify-content:space-between;align-items:center;padding:5px 0}
.totals .disc{display:flex;gap:6px;align-items:center}
.totals .disc input{width:100px;text-align:right;min-height:38px;padding:6px 8px}
.totals .grand{border-top:2px solid var(--ink);margin-top:6px;padding-top:10px;font-size:22px;font-weight:700}

.pay{margin-top:10px}
.seg{display:flex;gap:6px}
.seg button{flex:1;border:1px solid var(--line);background:#fff;font-size:14px}
.seg button.on{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:700}
.split{display:flex;gap:8px;margin-top:8px}
.split label{flex:1;margin:0}
.cust{margin:10px 0;background:#fff;border-radius:10px;padding:10px}
.cust summary{cursor:pointer;color:var(--muted);font-size:14px}
.cust input{margin-top:8px}
.actions{display:flex;gap:8px;margin-top:10px}
.actions .primary{flex:1}

/* ---------------- lists / cards ---------------- */
.list{display:grid;gap:6px}
.list .row{display:flex;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);
           border-radius:10px;padding:10px;min-height:var(--tap)}
.list .row .nm{flex:1;min-width:0;font-weight:600;font-size:15px}
.list .row.low{border-color:#f0b100;background:#fffbeb}
.list .row.void{opacity:.55;text-decoration:line-through}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px}
.cards .c{background:#fff;border-radius:var(--r);padding:12px}
.cards .c b{display:block;font-size:20px;margin-top:2px}
.cards .c.hi b{color:var(--brand)}

/* ---------------- dialogs ---------------- */
dialog{border:0;border-radius:var(--r);padding:16px;max-width:min(560px,94vw);width:100%}
dialog::backdrop{background:rgba(0,0,0,.5)}
#scanner{max-width:min(460px,94vw)}
#scan-video{width:100%;border-radius:10px;background:#000;aspect-ratio:4/3;object-fit:cover}
#modal-body h3{margin-top:0}
.modal-actions{display:flex;gap:8px;margin-top:14px}
.modal-actions .primary{flex:1}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.qrbox{display:grid;place-items:center;gap:8px;text-align:center}
.qrbox canvas,.qrbox img{width:230px;height:230px}

#toast{position:fixed;left:50%;bottom:76px;transform:translateX(-50%);z-index:99;
       display:grid;gap:6px;pointer-events:none}
#toast div{background:#1d1b1e;color:#fff;padding:10px 16px;border-radius:999px;font-size:14px;
           box-shadow:0 3px 12px rgba(0,0,0,.25)}
#toast div.bad{background:var(--bad)}

/* ---------------- print ---------------- */
#print-area{display:none}
@media print{
  body{background:#fff}
  #app,#login,#toast,dialog{display:none !important}
  #print-area{display:block}
}
/* receipt */
.receipt{font:12px/1.35 "Courier New",monospace;color:#000;margin:0 auto;padding:2mm}
.receipt.w58mm{width:56mm} .receipt.w80mm{width:76mm} .receipt.wA5{width:140mm;font-size:13px}
.receipt h2{margin:0 0 2px;font-size:15px;text-align:center}
.receipt .ctr{text-align:center}
.receipt hr{border:0;border-top:1px dashed #000;margin:5px 0}
.receipt table{width:100%;border-collapse:collapse}
.receipt td{padding:1px 0;vertical-align:top}
.receipt .r{text-align:right}
.receipt .tot{font-size:15px;font-weight:bold}
@page{margin:4mm}
/* label sheet */
.labels{display:grid;grid-template-columns:repeat(3,1fr);gap:2mm}
.label{border:1px dotted #bbb;padding:1.5mm;text-align:center;break-inside:avoid}
.label .ln{font:bold 9px/1.1 system-ui;height:2.2em;overflow:hidden}
.label .lp{font:bold 11px/1.2 system-ui}
.label svg{width:100%;height:12mm}

.product-image-preview { display:block; width:120px; height:150px; object-fit:cover; border-radius:10px; margin:8px 0 16px; }
.product-image-preview[hidden] { display:none; }

.product-image-gallery { display:flex; flex-wrap:wrap; gap:12px; margin:12px 0; }
.product-photo { width:110px; display:grid; gap:5px; }
.product-photo img { width:110px; height:125px; object-fit:cover; border-radius:12px; }
.product-photo small { color:var(--muted); }

.coupon-row { width:100%; text-align:left; font:inherit; color:inherit; background:transparent; border:0; cursor:pointer; }
#tabs { overflow-x:auto; }