:root{--red:#D62828;--red-d:#a81e1e;--yel:#FFC300;--yel-l:#FFF4CC;--ink:#2b1a12;--mut:#8a7d74;--bg:#FFFBF2;--card:#fff;--ok:#1f9d55;--line:#f0e4cf}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,"Segoe UI",Roboto,"Noto Sans Lao",sans-serif;font-size:17px}
button{font:inherit;border:0;cursor:pointer}
input,select,textarea{font:inherit;width:100%;padding:14px;border:2px solid var(--line);border-radius:14px;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:none;border-color:var(--yel)}
.splash{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--red);font-size:28px}
.logo{font-size:64px}
.top{position:sticky;top:0;z-index:5;background:var(--red);color:#fff;padding:calc(12px + env(safe-area-inset-top)) 16px 12px;display:flex;align-items:center;gap:10px}
.top .t{flex:1;min-width:0}.top .t b{display:block;font-size:19px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top .t small{opacity:.85;font-size:13px}
.pill{background:rgba(255,255,255,.18);color:#fff;border-radius:999px;padding:8px 12px;font-size:13px;white-space:nowrap}
.pill.off{background:var(--yel);color:var(--ink)}
.main{padding:14px 14px 190px}
.banner{background:var(--yel);color:var(--ink);border-radius:16px;padding:12px 14px;margin-bottom:12px;font-weight:600;display:flex;gap:10px;align-items:center}
.banner.red{background:#ffe1e1;color:var(--red-d)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{position:relative;background:var(--card);border:3px solid var(--line);border-radius:22px;padding:16px 12px;min-height:150px;display:flex;flex-direction:column;justify-content:space-between;text-align:left;box-shadow:0 2px 0 var(--line);transition:transform .06s}
.tile:active{transform:scale(.97)}
.tile.on{border-color:var(--red);background:#fff5f5}
.tile{padding:10px;gap:4px;justify-content:flex-start}
.tile .pic{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;margin-bottom:4px;background:#fff}
.tile .en{font-size:12px;color:var(--mut);line-height:1.2}
.tile .pr{margin-top:auto}
.tile .minus{display:flex;align-items:center;justify-content:center;padding:0 0 4px;bottom:auto;top:12px;right:6px;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.tile .tag{z-index:1}
h3.cat{margin:18px 2px 8px}h3.cat:first-child{margin-top:4px}
.tile .em{font-size:40px}.tile .nm{font-weight:700;font-size:16px;line-height:1.25}.tile .pr{color:var(--red);font-weight:800;font-size:18px}
.tile .old{color:var(--mut);text-decoration:line-through;font-size:13px;font-weight:500;margin-left:4px}
.tile .tag{position:absolute;top:10px;right:10px;background:var(--yel);border-radius:999px;padding:3px 8px;font-size:12px;font-weight:700}
.qty{position:absolute;top:-10px;left:-10px;background:var(--red);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;border:3px solid #fff}
.minus{position:absolute;bottom:10px;right:10px;width:44px;height:44px;border-radius:50%;background:var(--yel);font-size:26px;font-weight:800;line-height:1}
.paybar{position:fixed;left:0;right:0;bottom:calc(74px + env(safe-area-inset-bottom));padding:10px 14px;z-index:6}
.btn{display:block;width:100%;border-radius:18px;padding:18px;font-weight:800;font-size:20px;background:var(--red);color:#fff;box-shadow:0 4px 0 var(--red-d)}
.btn:active{transform:translateY(2px);box-shadow:0 2px 0 var(--red-d)}
.btn:disabled{background:#d9cfc4;box-shadow:none}
.btn.y{background:var(--yel);color:var(--ink);box-shadow:0 4px 0 #c99a00}
.btn.g{background:var(--ok);box-shadow:0 4px 0 #157040}
.btn.w{background:#fff;color:var(--ink);border:2px solid var(--line);box-shadow:none}
.btn.sm{padding:12px;font-size:16px;border-radius:14px}
.row{display:flex;gap:10px;align-items:center}.row>*{flex:1}
.tabs{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:2px solid var(--line);display:flex;padding-bottom:env(safe-area-inset-bottom);z-index:7}
.tabs button{flex:1;background:none;padding:10px 0 12px;font-size:12px;color:var(--mut);display:flex;flex-direction:column;align-items:center;gap:2px;position:relative}
.tabs button i{font-style:normal;font-size:26px}
.tabs button.on{color:var(--red);font-weight:700}
.tabs .dot{position:absolute;top:6px;right:calc(50% - 22px);background:var(--red);color:#fff;border-radius:999px;font-size:11px;padding:1px 6px}
.card{background:var(--card);border:2px solid var(--line);border-radius:18px;padding:14px;margin-bottom:10px}
.card.tap:active{background:var(--yel-l)}
.card.done{border-color:#bfe8cf;background:#f3fbf6}
.card.low{border-color:#f5b5b5;background:#fff5f5}
h2{font-size:20px;margin:6px 2px 12px}h3{font-size:16px;margin:16px 2px 8px;color:var(--mut);text-transform:uppercase;letter-spacing:.04em}
.mut{color:var(--mut);font-size:14px}.big{font-size:34px;font-weight:800;color:var(--red)}
.kv{display:flex;justify-content:space-between;gap:8px;padding:6px 0;border-bottom:1px dashed var(--line)}.kv:last-child{border:0}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.stat{background:#fff;border:2px solid var(--line);border-radius:16px;padding:12px}.stat b{display:block;font-size:22px}.stat span{font-size:13px;color:var(--mut)}
.chip{display:inline-block;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700;background:var(--yel-l)}
.chip.red{background:#ffe1e1;color:var(--red-d)}.chip.ok{background:#dcf5e6;color:#157040}.chip.hq{background:var(--red);color:#fff}
.modal{position:fixed;inset:0;background:rgba(43,26,18,.55);z-index:20;display:flex;align-items:flex-end}
.modal .sheet{background:var(--bg);width:100%;max-height:94vh;overflow:auto;border-radius:26px 26px 0 0;padding:20px 16px calc(20px + env(safe-area-inset-bottom))}
.hidden{display:none!important}
.toast{position:fixed;top:calc(16px + env(safe-area-inset-top));left:16px;right:16px;background:var(--ink);color:#fff;padding:14px 16px;border-radius:16px;z-index:30;font-weight:600;text-align:center}
.qr{background:#fff;border:3px solid var(--line);border-radius:20px;padding:16px;text-align:center;margin:12px 0}
.qr img{width:220px;height:220px;object-fit:contain}
.qrph{width:220px;height:220px;margin:0 auto;border-radius:12px;background:repeating-linear-gradient(45deg,#f6efe2 0 10px,#fff 10px 20px);display:flex;align-items:center;justify-content:center;color:var(--mut);font-size:14px;padding:16px}
canvas.sig{width:100%;height:200px;background:#fff;border:2px dashed var(--mut);border-radius:16px;touch-action:none}
.field{margin-bottom:12px}.field label{display:block;font-size:14px;color:var(--mut);margin:0 2px 6px}
.login{padding:calc(40px + env(safe-area-inset-top)) 22px 30px;max-width:440px;margin:0 auto}
.login .hero{text-align:center;color:var(--red);margin-bottom:24px}.login .hero b{font-size:32px;display:block}
.demo{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:18px}
.demo button{background:var(--yel-l);border-radius:12px;padding:10px;font-size:14px}
table{width:100%;border-collapse:collapse;font-size:14px}td,th{padding:8px 6px;text-align:left;border-bottom:1px solid var(--line)}th{color:var(--mut);font-weight:600;font-size:12px}
.filters{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:12px}.filters select{padding:10px;font-size:14px}
.seg{display:flex;background:#fff;border:2px solid var(--line);border-radius:14px;padding:4px;margin-bottom:12px;overflow-x:auto}
.seg button{flex:1;background:none;padding:10px;border-radius:10px;font-weight:600;color:var(--mut);white-space:nowrap}.seg button.on{background:var(--red);color:#fff}
@media(min-width:700px){.grid{grid-template-columns:1fr 1fr 1fr}.main{max-width:900px;margin:0 auto}}