:root{--bg:#fff;--fg:#1c2126;--muted:#6b7580;--line:#e4e7ea;--soft:#f6f7f8;--acc:#0f766e;--acc-fg:#fff;--bad:#b42318;--warn:#b54708}
@media (prefers-color-scheme:dark){:root{--bg:#14181c;--fg:#e8ebee;--muted:#98a2ab;--line:#2a3036;--soft:#1c2126;--acc:#2dd4bf;--acc-fg:#06201d;--bad:#f97066;--warn:#fdb022}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--acc);text-decoration:none}
main{max-width:1200px;margin:0 auto;padding:20px}
h1{font-size:22px;margin:0 0 16px}h2{font-size:16px;margin:0 0 10px}
.top{display:flex;gap:20px;align-items:center;padding:10px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.top nav{display:flex;gap:14px;flex:1;flex-wrap:wrap}.top nav a{color:var(--fg)}.top nav a:hover{color:var(--acc)}
.brand{font-weight:700;color:var(--acc)!important}
.who{display:flex;gap:12px;align-items:center}.who form{margin:0}
table{width:100%;border-collapse:collapse}
th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);text-align:left;font-weight:600}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.num{text-align:right;white-space:nowrap}.muted{color:var(--muted)}small{color:var(--muted)}
.err{color:var(--bad)}.ok{color:var(--acc)}.warn{color:var(--warn)}
input,select,textarea{font:inherit;color:inherit;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:7px 9px;max-width:100%}
input:focus,select:focus{outline:2px solid var(--acc);outline-offset:-1px}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
label input,label select{color:var(--fg);font-size:15px}
.btn{display:inline-block;background:var(--acc);color:var(--acc-fg);border:0;border-radius:6px;padding:8px 14px;font:inherit;font-weight:600;cursor:pointer}
.btn.ghost{background:transparent;color:var(--acc);border:1px solid var(--line)}
.btn.small{padding:4px 10px}.btn.wide{width:100%;padding:11px}.btn:disabled{opacity:.5}
button.link{background:none;border:0;color:var(--acc);cursor:pointer;font:inherit;padding:0}
.bar{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:14px;flex-wrap:wrap}.bar h1{margin:0}
.card{border:1px solid var(--line);border-radius:10px;padding:16px;background:var(--bg)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:16px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.tile{display:block;border:1px solid var(--line);border-radius:10px;padding:16px;color:var(--fg)}
.tile span{display:block;color:var(--muted);font-size:13px}.tile b{font-size:26px;display:block}
a.tile:hover{border-color:var(--acc)}
.tabs{display:flex;gap:6px;margin-bottom:14px}.tabs a{padding:5px 12px;border:1px solid var(--line);border-radius:99px;color:var(--fg)}.tabs a.on{background:var(--acc);color:var(--acc-fg);border-color:var(--acc)}
.pos{display:grid;grid-template-columns:1fr 380px;gap:20px}@media(max-width:900px){.pos{grid-template-columns:1fr}}
.big{width:100%;font-size:18px;padding:12px}
.qty{width:60px;text-align:right}
.sum div{display:flex;justify-content:space-between;padding:4px 0}.grand{font-size:20px;font-weight:700;border-top:1px solid var(--line);margin-top:4px;padding-top:8px!important}
.seg{display:flex;gap:16px;margin:10px 0}.seg label{flex-direction:row;align-items:center;gap:6px;color:var(--fg);font-size:15px}
.stack>*{margin-bottom:10px}
.login{max-width:320px;margin:12vh auto}.login input{width:100%;margin-bottom:10px}
.receipt{width:320px;margin:0 auto;font:13px/1.45 ui-monospace,Menlo,Consolas,monospace}.receipt table td,.receipt table th{padding:3px 0;border:0}.receipt hr{border:0;border-top:1px dashed var(--muted)}.c{text-align:center}
.actions{text-align:center;margin-top:16px;display:flex;gap:8px;justify-content:center}
@media print{.no-print{display:none!important}main{padding:0}body{background:#fff;color:#000}}