/* Layout: sticky top bar (company + nav tabs), one work area per section; POS is a two-pane search|cart split that stacks on phones; all forms open in a sheet overlay */
:root{
  --bg:#EDF0F2; --surface:#FFFFFF; --surface-2:#F5F7F8; --line:#D3DADF; --fg:#16212A; --muted:#5A6A76;
  --accent:#1D5C8A; --accent-fg:#FFFFFF; --accent-soft:#DCE8F2;
  --in:#1D7347; --in-soft:#DDF0E5; --out:#A9432A; --out-soft:#F6E1DA; --warn:#94600A; --warn-soft:#F7ECD3;
  --shadow:0 10px 40px rgba(20,33,43,.18);
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0E151B; --surface:#16202A; --surface-2:#1C2732; --line:#2B3945; --fg:#E3E9EE; --muted:#93A2AE;
  --accent:#6EA6D4; --accent-fg:#0E151B; --accent-soft:#1D3347;
  --in:#55C18D; --in-soft:#173628; --out:#EB8467; --out-soft:#3B221C; --warn:#E3AE45; --warn-soft:#3A2D14;
  --shadow:0 10px 40px rgba(0,0,0,.5); color-scheme:dark}}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:15px;line-height:1.45;-webkit-text-size-adjust:100%}
[hidden]{display:none!important}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3{text-wrap:balance}

.wrap{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
header.top{position:sticky;top:0;z-index:5;background:var(--surface);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.bar{display:flex;align-items:center;gap:12px;padding-block:10px 4px}
.brand{display:flex;flex-direction:column;min-width:0;margin-right:auto}
.brand b{font-size:17px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand span{font-size:12px;color:var(--muted)}
.tools{display:flex;gap:6px}
.nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:10px 13px;color:var(--muted);font-weight:500;text-decoration:none;border-bottom:2px solid transparent;white-space:nowrap}
.nav a[aria-current="page"]{color:var(--fg);border-bottom-color:var(--accent)}
main{padding-block:18px 80px}

input,select,textarea{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:9px 10px;min-width:0;width:100%}
input[type=checkbox]{width:auto}
textarea{resize:vertical;min-height:60px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:9px 14px;font-weight:500;white-space:nowrap;text-decoration:none}
a.btn{color:var(--fg)}
.btn:hover{background:var(--surface-2)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}
.btn.in{background:var(--in);border-color:var(--in);color:var(--surface)}
.btn.out{background:var(--out);border-color:var(--out);color:var(--surface)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}
.btn.danger{color:var(--out);border-color:var(--out);background:transparent}
.btn.sm{padding:6px 10px;font-size:13px}
.btn.big{width:100%;padding:14px;font-size:16px;font-weight:600}
.btn:disabled{opacity:.5;cursor:not-allowed}
.lang{font-family:var(--mono);font-weight:600}

.head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px}
.head h1{font-size:20px;margin:0;margin-right:auto}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:10px;margin-bottom:16px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 14px;min-width:0}
.stat small{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.stat .v{font-size:19px;font-weight:600;margin-top:2px;overflow-wrap:anywhere}
.v.warn,.t-warn{color:var(--warn)} .v.bad,.t-bad{color:var(--out)} .v.good{color:var(--in)}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;align-items:center}
.toolbar input[type=search]{flex:1 1 240px;width:auto}
.toolbar select{width:auto}
.check{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted)}

.list{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.li{display:grid;gap:12px;align-items:center;padding:11px 14px;border-top:1px solid var(--line)}
.li:first-child{border-top:0}
.li.click{cursor:pointer}
.li.click:hover{background:var(--surface-2)}
.li.hd{background:var(--surface-2);font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;padding-block:8px}
.g-items{grid-template-columns:minmax(0,2.4fr) minmax(0,1.1fr) minmax(0,1fr) minmax(0,1fr)}
.g-cli{grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr) minmax(0,.9fr)}
.g-docs{grid-template-columns:115px minmax(0,2fr) minmax(0,1fr)}
.r{text-align:right}
.nm{font-weight:600;overflow-wrap:anywhere}
.meta{font-size:13px;color:var(--muted);overflow-wrap:anywhere}
.sub{font-size:12px;color:var(--muted)}
.strike{text-decoration:line-through;opacity:.6}
.chip{display:inline-block;font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:99px;letter-spacing:.02em;vertical-align:1px;white-space:nowrap}
.chip.in{background:var(--in-soft);color:var(--in)}
.chip.out,.chip.zero,.chip.debt{background:var(--out-soft);color:var(--out)}
.chip.ret,.chip.adj{background:var(--accent-soft);color:var(--accent)}
.chip.warn{background:var(--warn-soft);color:var(--warn)}
.chip.cat{background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}
.empty{background:var(--surface);border:1px dashed var(--line);border-radius:10px;padding:28px 20px;text-align:center;color:var(--muted)}
.empty b{display:block;color:var(--fg);font-size:16px;margin-bottom:4px}
.empty .btn{margin-top:12px}

/* POS + document builder */
.split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:16px;align-items:start}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}
.card h2{margin:0 0 10px;font-size:16px}
.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;border:1px solid var(--line);border-radius:9px;overflow:hidden;margin-bottom:10px}
.seg button{border:0;background:var(--surface);padding:10px;font-weight:600;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.seg button.out[aria-pressed="true"]{background:var(--out);color:var(--surface)}
.seg button.ret[aria-pressed="true"]{background:var(--accent);color:var(--accent-fg)}
.scan{font-size:16px;padding:12px}
.results{margin-top:10px;display:grid;gap:6px;max-height:62vh;overflow-y:auto}
.res{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:10px 12px}
.res:hover{border-color:var(--accent)}
.res:disabled{opacity:.55}
.cart{display:grid;gap:8px}
.cl{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 10px;padding:10px;border:1px solid var(--line);border-radius:9px;background:var(--surface-2)}
.cl .ctl{grid-column:1/-1;display:grid;grid-template-columns:minmax(60px,.8fr) minmax(120px,1.3fr) minmax(90px,1.2fr) auto;gap:6px;align-items:center}
.cl .ctl input,.cl .ctl select{padding:7px 8px}
.ltot{font-weight:600}
.totalbox{display:flex;justify-content:space-between;align-items:baseline;background:var(--surface-2);border-radius:9px;padding:12px 14px;margin-block:10px}
.totalbox b{font-size:22px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:5px;min-width:0}
.field label{font-size:13px;font-weight:500;color:var(--muted)}
.field .hint{font-size:12px;color:var(--muted)}
.stack{display:grid;gap:10px}
.err{color:var(--out);font-size:14px}
.err:empty{display:none}

/* report */
.rep{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:14px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px;min-width:0}
.panel h3{margin:0 0 12px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}
.kv{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-top:1px solid var(--line)}
.kv:first-of-type{border-top:0}
.kv span:first-child{color:var(--muted)}
.bar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 10px;margin-bottom:10px;font-size:14px}
.bar .track{grid-column:1/-1;height:6px;border-radius:3px;background:var(--surface-2);overflow:hidden}
.bar .track i{display:block;height:100%;background:var(--accent)}
.chart{overflow-x:auto}
.chart svg{display:block;min-width:100%}

/* sheet */
.sheet-bg{position:fixed;inset:0;z-index:20;background:rgba(10,18,24,.5);display:flex;align-items:flex-start;justify-content:center;overflow-y:auto;padding:max(24px,env(safe-area-inset-top,0px)) max(12px,env(safe-area-inset-right,0px)) max(24px,env(safe-area-inset-bottom,0px)) max(12px,env(safe-area-inset-left,0px))}
.sheet{background:var(--surface);border-radius:14px;box-shadow:var(--shadow);width:100%;max-width:600px;padding:20px}
.sheet.wide{max-width:820px}
.sheet h2{margin:0 0 4px;font-size:19px}
.sheet .lead{margin:0 0 14px;color:var(--muted);font-size:14px}
.sheet h3{margin:18px 0 8px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.foot{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;margin-top:16px}
.foot .spacer{margin-right:auto}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:10px 16px;border-radius:9px;font-weight:500;z-index:30;max-width:calc(100% - 32px)}

/* auth */
.auth{min-height:100vh;display:grid;place-items:center;padding:24px max(16px,env(safe-area-inset-left,0px))}
.auth-box{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:26px}
.auth-box h1{margin:0 0 4px;font-size:24px}
.auth-box .lead{color:var(--muted);margin:0 0 18px}
.auth-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px}
.logo img{width:32px;height:32px}
.link{background:none;border:0;color:var(--accent);padding:0;font-weight:500;text-decoration:underline;text-underline-offset:3px}

/* receipt (screen + print) */
.receipt{font-family:var(--mono);font-size:13px;background:var(--surface-2);border-radius:9px;padding:14px;max-width:340px;margin:0 auto}
.receipt .c{text-align:center}
.receipt .rl{display:flex;justify-content:space-between;gap:10px}
.receipt hr{border:0;border-top:1px dashed var(--muted);margin:8px 0}
#print{display:none}
@media print{
  @page{margin:4mm}
  body>*:not(#print){display:none!important}
  #print{display:block;color:#000}
  #print .receipt{background:none;max-width:72mm;padding:0;font-size:12px}
  #print .receipt hr{border-top-color:#000}
}

@media (max-width:760px){
  .split{grid-template-columns:1fr}
  .results{max-height:none}
  .g-items{grid-template-columns:minmax(0,1fr) auto}
  .g-items .c-cat,.g-items .c-val{display:none}
  .g-cli{grid-template-columns:minmax(0,1fr) auto}
  .g-cli .c-sum,.g-cli .c-last{display:none}
  .g-docs{grid-template-columns:minmax(0,1fr) auto}
  .g-docs .c-date{grid-column:1/-1}
  .li.hd{display:none}
  .form{grid-template-columns:1fr}
  .cl .ctl{grid-template-columns:1fr 1fr}
  .cl .ctl .ltot{grid-column:1/-1;text-align:right}
}
@media (prefers-reduced-motion:no-preference){.sheet{animation:up .18s ease-out}@keyframes up{from{transform:translateY(10px);opacity:.6}}}