:root{--bg:#0f1419;--panel:#171e26;--panel2:#1d2631;--line:#2a3646;--text:#e6edf3;--mute:#8b9bb0;--brand:#19c37d;--brand2:#0f9d63;--bad:#ff5d5d;--warn:#f5b942;--info:#4aa3ff}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{display:flex;background:var(--bg);color:var(--text);font:14px/1.45 "Segoe UI",system-ui,sans-serif}
aside{width:210px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;flex-shrink:0}
.brand{font-weight:700;font-size:18px;padding:18px 18px 10px;display:flex;align-items:center;gap:8px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}
#menu{flex:1;overflow:auto;padding:6px 8px}
#menu .grp{font-size:11px;letter-spacing:.08em;color:var(--mute);padding:12px 10px 4px;text-transform:uppercase}
#menu a{display:block;padding:8px 10px;border-radius:8px;color:var(--text);cursor:pointer;text-decoration:none}
#menu a:hover{background:var(--panel2)}
#menu a.on{background:var(--brand);color:#04140c;font-weight:600}
.navfoot{padding:10px 14px;font-size:12px;color:var(--mute);border-top:1px solid var(--line)}
main{flex:1;display:flex;flex-direction:column;min-width:0}
header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--line)}
h1{margin:0;font-size:20px}
#view{flex:1;overflow:auto;padding:20px 24px}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.g2{grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.card h3{margin:0 0 10px;font-size:14px;color:var(--mute);font-weight:600}
.kpi{font-size:28px;font-weight:700}
.kpi small{font-size:12px;color:var(--mute);font-weight:400;display:block;margin-top:2px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:12px;color:var(--mute);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
tr:hover td{background:rgba(255,255,255,.02)}
button,.btn{background:var(--panel2);color:var(--text);border:1px solid var(--line);padding:7px 12px;border-radius:8px;cursor:pointer;font:inherit}
button:hover{border-color:var(--brand)}
button.primary{background:var(--brand);color:#04140c;border-color:var(--brand);font-weight:600}
button.primary:hover{background:var(--brand2)}
button.danger{color:var(--bad)}
button.sm{padding:3px 8px;font-size:12px}
button:disabled{opacity:.5;cursor:default}
input,select,textarea{background:#0f151c;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:7px 9px;font:inherit;width:100%}
input:focus,select:focus{outline:none;border-color:var(--brand)}
input[type=checkbox]{width:auto}
label{display:block;font-size:12px;color:var(--mute);margin-bottom:3px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-bottom:12px}
.row>div{flex:1;min-width:130px}
.row>div.fit{flex:0 0 auto;min-width:0}
.pill{display:inline-block;padding:1px 9px;border-radius:99px;font-size:12px;font-weight:600}
.p-ok{background:rgba(25,195,125,.15);color:var(--brand)}
.p-bad{background:rgba(255,93,93,.15);color:var(--bad)}
.p-warn{background:rgba(245,185,66,.15);color:var(--warn)}
.p-info{background:rgba(74,163,255,.15);color:var(--info)}
.p-mute{background:rgba(139,155,176,.15);color:var(--mute)}
.mute{color:var(--mute)}
.mono{font-family:Consolas,monospace}
.hidden{display:none!important}
#modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:20}
#modal .box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;width:min(640px,92vw);max-height:88vh;overflow:auto}
#modal h2{margin:0 0 14px;font-size:18px}
.btns{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}
#toast{position:fixed;bottom:22px;right:22px;padding:11px 16px;border-radius:10px;background:var(--panel2);border:1px solid var(--line);z-index:30;max-width:420px}
#toast.err{border-color:var(--bad);color:var(--bad)}
#toast.ok{border-color:var(--brand)}
.products{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.prod{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px;cursor:pointer;user-select:none}
.prod:hover{border-color:var(--brand)}
.prod b{display:block}
.prod .pr{color:var(--brand);font-weight:700;margin-top:4px}
.cartline{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--line)}
.cartline .n{flex:1}
.total{font-size:26px;font-weight:700;margin:10px 0}
.code{font-family:Consolas,monospace;font-size:16px;letter-spacing:.04em;background:#0f151c;border:1px dashed var(--line);padding:6px 10px;border-radius:8px;display:inline-block;margin:3px 0}
.empty{padding:34px;text-align:center;color:var(--mute)}
.site{border-left:4px solid var(--brand)}
.site.down{border-left-color:var(--bad)}
.tools{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.tools input,.tools select{width:auto;min-width:160px}
#printArea{display:none}
@media print{
  body>*:not(#printArea){display:none!important}
  #printArea{display:block!important;color:#000;background:#fff}
  .ticket{display:inline-block;width:46%;margin:1.5%;padding:10px;border:1px dashed #000;border-radius:6px;page-break-inside:avoid;font-family:Consolas,monospace}
  .ticket .big{font-size:18px;font-weight:700;letter-spacing:.05em}
}

.invoice{font-family:"Segoe UI",Arial,sans-serif;color:#000;background:#fff;padding:24px;max-width:760px}
.invoice h1{margin:0 0 4px;font-size:26px}.invoice h2{margin:0 0 4px;font-size:20px;letter-spacing:.1em}
.invoice table.it{width:100%;border-collapse:collapse;margin-top:12px}
.invoice table.it th,.invoice table.it td{border-bottom:1px solid #999;padding:6px 8px;text-align:left;color:#000}
.invoice .stamp{display:inline-block;border:3px solid #0a0;color:#0a0;font-weight:700;font-size:22px;padding:2px 12px;margin-top:6px;transform:rotate(-6deg)}

.thumb{width:60px;height:44px;border-radius:6px;background:var(--panel2);display:flex;align-items:center;justify-content:center;overflow:hidden;font-size:20px}
.thumb img{width:100%;height:100%;object-fit:cover}
pre.snip{background:#0f151c;border:1px solid var(--line);border-radius:8px;padding:10px;margin:0 0 8px;white-space:pre-wrap;font:13px Consolas,monospace;user-select:all}

/* ───────────── sign-in page ───────────── */
body.login{align-items:center;justify-content:center;padding:20px}
.loginbox{width:min(380px,100%);background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px}
.brand.big{font-size:26px;padding:0 0 4px}
.loginbox label{margin-top:12px}.loginbox .chk{display:flex;gap:8px;align-items:center;color:var(--text);font-size:14px}
.loginbox button{width:100%;margin-top:14px;padding:12px;font-size:16px}
.err{color:var(--bad);min-height:20px;margin-top:8px;font-size:14px}

/* ───────────── phone layout ───────────── */
#burger,#tabbar,#scrim,#logout{display:none}
#logout{margin:0 8px 8px;width:calc(100% - 16px)}
#logout:not(.hidden){display:block}
@media (max-width:760px){
  html,body{height:auto;min-height:100%}
  body{display:block;font-size:15px}
  aside{position:fixed;z-index:40;left:0;top:0;bottom:0;width:270px;transform:translateX(-102%);transition:transform .2s;box-shadow:0 0 30px rgba(0,0,0,.6)}
  body.nav-open aside{transform:none}
  #scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:35;opacity:0;pointer-events:none;transition:opacity .2s}
  body.nav-open #scrim{opacity:1;pointer-events:auto}
  main{min-height:100vh}
  header{position:sticky;top:0;z-index:20;background:var(--bg);padding:calc(10px + env(safe-area-inset-top)) 12px 10px;gap:8px;flex-wrap:wrap;justify-content:flex-start}
  #burger{display:block;padding:6px 12px;font-size:20px;line-height:1}
  h1{font-size:18px;flex:1}
  #actions{display:flex;gap:6px;flex-wrap:wrap;width:100%}
  #actions button{flex:1;min-width:120px}
  #view{overflow:visible;padding:12px 12px calc(84px + env(safe-area-inset-bottom))}
  button,.btn,input,select,textarea{min-height:40px}
  button.sm{min-height:34px;padding:5px 10px}
  .grid.g4{grid-template-columns:repeat(2,1fr);gap:10px}
  .grid.g2{grid-template-columns:1fr}
  .kpi{font-size:22px}
  #view .grid[style*="340px"]{grid-template-columns:1fr !important}
  .row>div{min-width:100%}
  .row>div.fit{min-width:0}
  .tools{gap:8px}.tools input{width:100%;flex:1 1 100%}.tools select{width:auto;flex:1 1 42%;min-width:0}
  body.login{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:16px}
  #modal{z-index:60}
  #toast{z-index:70}
  #view tr{position:relative}
  #view td:first-child:not([data-label]):has(input[type=checkbox]){position:absolute;top:8px;right:10px;padding:0;display:block}
  #view td:first-child:not([data-label]):has(input[type=checkbox]) + td{padding-right:34px}
  .products{grid-template-columns:repeat(2,1fr)}
  .total{font-size:24px}
  #modal{align-items:flex-end}
  #modal .box{width:100vw;max-width:100vw;max-height:92vh;border-radius:16px 16px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
  .btns{flex-wrap:wrap}.btns button{flex:1}
  #toast{left:12px;right:12px;bottom:calc(72px + env(safe-area-inset-bottom));max-width:none}
  pre.snip{font-size:12px}
  .card{padding:12px}
  .invoice{padding:8px}
  /* tables become cards */
  #view table,#view tbody,#box table,#box tbody{display:block;width:100%}
  #view tr,#box tr{display:block;padding:10px 12px;border-bottom:1px solid var(--line)}
  #view tr.hdr,#box tr.hdr{display:none}
  #view td,#box td{display:flex;justify-content:space-between;align-items:center;gap:12px;border:0;padding:4px 0;text-align:right;flex-wrap:wrap}
  #view td[data-label]::before,#box td[data-label]::before{content:attr(data-label);color:var(--mute);font-size:11px;text-transform:uppercase;letter-spacing:.04em;text-align:left;flex:0 0 34%}
  #view td[colspan],#box td[colspan]{display:block;text-align:left;padding:2px 0}
  #view td:last-child:has(button),#box td:last-child:has(button){justify-content:flex-end;gap:6px}
  #view td.mono,#box td.mono{word-break:break-all}
  #view td[style*="width:70px"]{display:none}
  #view tr:hover td{background:none}
  #view td:empty{display:none}
  /* bottom tab bar */
  #tabbar{display:flex;position:fixed;z-index:30;left:0;right:0;bottom:0;background:var(--panel);border-top:1px solid var(--line);padding:4px 4px calc(4px + env(safe-area-inset-bottom))}
  #tabbar button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:none;font-size:11px;color:var(--mute);padding:4px 0;min-height:48px;border-radius:10px}
  #tabbar button span{font-size:20px;line-height:1}
  #tabbar button.on{color:var(--brand);background:rgba(25,195,125,.1)}
  .navfoot{padding-bottom:calc(10px + env(safe-area-inset-bottom))}
}