:root{--bg:#f4f6f8;--card:#fff;--text:#1d2733;--muted:#6b7785;--line:#e3e7ec;--pri:#1f5f8b;--pri2:#174a6d;--ok:#1e8a4c;--bad:#c0392b;--warn:#b7791f;--side:#16212c}
*{box-sizing:border-box}
body{margin:0;font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--pri)}
button,input,select,textarea{font:inherit}
.layout{display:flex;min-height:100vh}
.side{width:210px;background:var(--side);color:#cfd8e3;flex-shrink:0;display:flex;flex-direction:column}
.side .brand{padding:16px;font-weight:700;color:#fff;font-size:15px;display:flex;gap:8px;align-items:center}
.side .brand img{width:28px}
.side nav a{display:block;padding:9px 18px;color:#cfd8e3;text-decoration:none;border-left:3px solid transparent}
.side nav a:hover{background:#1f2d3b}
.side nav a.on{background:#22364a;color:#fff;border-left-color:#f2b134}
.side nav .grp{padding:12px 18px 4px;font-size:11px;text-transform:uppercase;color:#7d8a99;letter-spacing:.05em}
.side .me{margin-top:auto;padding:12px 16px;font-size:13px;border-top:1px solid #253445}
.side .me a{color:#9fb3c8;cursor:pointer;margin-right:10px}
.main{flex:1;min-width:0;padding:18px 22px}
.topbar{display:none}
h1{font-size:20px;margin:0 0 14px}
h2{font-size:16px;margin:0 0 10px}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px;margin-bottom:14px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.end{justify-content:flex-end}
.grow{flex:1}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:12px 14px}
.stat .l{color:var(--muted);font-size:12px}.stat .v{font-size:20px;font-weight:700;margin-top:2px}
.btn{border:1px solid var(--line);background:#fff;border-radius:6px;padding:7px 12px;cursor:pointer;white-space:nowrap}
.btn:hover{background:#f0f3f6}
.btn.pri{background:var(--pri);border-color:var(--pri);color:#fff}.btn.pri:hover{background:var(--pri2)}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn.bad{color:var(--bad);border-color:#e8c4c0}
.btn.sm{padding:3px 8px;font-size:13px}
.btn.big{padding:12px 18px;font-size:16px;font-weight:600}
.btn:disabled{opacity:.5;cursor:default}
input,select,textarea{border:1px solid #cdd4dc;border-radius:6px;padding:7px 9px;background:#fff;min-width:0}
input:focus,select:focus,textarea:focus{outline:2px solid #9cc3e0;border-color:var(--pri)}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:3px}
.f{display:flex;flex-direction:column}
.f input,.f select,.f textarea{width:100%}
table{width:100%;border-collapse:collapse}
th,td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:12px;color:var(--muted);font-weight:600;background:#fafbfc;position:sticky;top:0}
tr.click{cursor:pointer}tr.click:hover td{background:#f5f9fc}
td.n,th.n{text-align:right;white-space:nowrap}
.tbl{overflow:auto;max-height:68vh}
.muted{color:var(--muted)}.ok{color:var(--ok)}.bad{color:var(--bad)}.warn{color:var(--warn)}
.tag{display:inline-block;padding:1px 7px;border-radius:10px;font-size:12px;background:#eef2f6}
.tag.base{background:#e7f0fb;color:#1f5f8b}.tag.colorant{background:#fdf1dc;color:#9a6200}.tag.cancel{background:#fbe5e2;color:var(--bad)}
.b{font-weight:600}
.tabs{display:flex;gap:4px;margin-bottom:12px;border-bottom:1px solid var(--line)}
.tabs a{padding:8px 14px;cursor:pointer;border-bottom:2px solid transparent;text-decoration:none;color:var(--muted)}
.tabs a.on{border-color:var(--pri);color:var(--text);font-weight:600}
/* POS */
.pos{display:grid;grid-template-columns:minmax(0,1fr) 520px;gap:14px}
.results{max-height:62vh;overflow:auto}
.item{padding:8px 10px;border:1px solid var(--line);border-radius:6px;margin-bottom:6px;cursor:pointer;display:flex;justify-content:space-between;gap:10px;background:#fff}
.item:hover{border-color:var(--pri);background:#f5f9fc}
.cart td input{width:60px;padding:4px 6px}
.cart td input.price{width:95px}
.sum td{border:0;padding:4px 0}
.total{font-size:22px;font-weight:700;color:var(--pri)}
/* modal */
.mask{position:fixed;inset:0;background:rgba(15,25,35,.45);display:flex;align-items:flex-start;justify-content:center;padding:5vh 12px;z-index:50;overflow:auto}
.modal{background:#fff;border-radius:10px;width:min(640px,100%);padding:18px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.modal.wide{width:min(980px,100%)}
.modal h2{margin-bottom:14px}
.modal .foot{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
#toast{position:fixed;bottom:18px;right:18px;z-index:99;display:flex;flex-direction:column;gap:6px}
#toast div{background:#16212c;color:#fff;padding:10px 14px;border-radius:6px;box-shadow:0 4px 14px rgba(0,0,0,.2);max-width:360px}
#toast div.err{background:var(--bad)}
.login{max-width:340px;margin:12vh auto}
.chart{width:100%;height:180px}
@media (max-width:900px){
  .layout{display:block}
  .side{position:fixed;inset:0 auto 0 0;z-index:40;transform:translateX(-100%);transition:.2s}
  .side.open{transform:none}
  .topbar{display:flex;align-items:center;gap:10px;background:var(--side);color:#fff;padding:10px 14px}
  .topbar button{background:none;border:0;color:#fff;font-size:22px}
  .main{padding:12px}
  .pos,.g2,.g3,.g4{grid-template-columns:1fr}
}
@media print{.side,.topbar,.noprint{display:none!important}.main{padding:0}.card{border:0}}
.tpl{display:grid;grid-template-columns:440px minmax(0,1fr);gap:14px;align-items:start}
@media (max-width:1100px){.tpl{grid-template-columns:1fr}}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:10px}.pgrp{border:1px solid var(--line);border-radius:8px;padding:10px 12px;background:#fafbfc}
.thumb{display:inline-flex;align-items:center;justify-content:center;border-radius:6px;object-fit:cover;background:#eef2f6;border:1px solid var(--line);flex-shrink:0;vertical-align:middle;cursor:zoom-in}
span.thumb{cursor:default}
.pimg{width:110px;height:110px;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:#f5f7f9;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.pimg img{width:100%;height:100%;object-fit:cover}.pimg .thumb{border:0;background:none}
.seg{display:inline-flex;gap:0}.seg .btn{border-radius:0}.seg .btn:first-child{border-radius:6px 0 0 6px}.seg .btn:last-child{border-radius:0 6px 6px 0;margin-left:-1px}
.pgallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:10px}
.pcard{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}.pcard.click{cursor:pointer}.pcard.click:hover{border-color:var(--pri)}
.pcard>img,.pcard .ph{width:100%;aspect-ratio:1;object-fit:cover;display:flex;align-items:center;justify-content:center;background:#f5f7f9}.pcard .ph .thumb{border:0;background:none}
.pc-b{padding:8px 10px}
.credit{font-size:11px;color:#7d8a99;margin-top:8px;font-style:italic;letter-spacing:.02em}