/* Layout: phone-first single column for the counter; wider grid for the admin dashboard.
   Henna maroon accent on warm neutrals; mono figures for money. */
:root{
  --bg:#f6f2ef; --surface:#ffffff; --ink:#24181a; --muted:#77666a; --line:#e6dcd8;
  --accent:#7a1f2b; --accent-ink:#ffffff; --accent-soft:#f4e3e5;
  --ok:#1f7a4d; --ok-soft:#e1f2e9; --warn:#a2560f; --warn-soft:#fbeedd; --bad:#b3261e; --bad-soft:#fbe4e2;
  --upi:#3b4fa8; --cash:#1f7a4d;
  --paper:#fffdf8; --paper-ink:#1b1b1b;
  --f-body:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#171113; --surface:#221a1c; --ink:#f3ebec; --muted:#ab9a9e; --line:#3a2e31;
  --accent:#d8707e; --accent-ink:#1b0f11; --accent-soft:#3a2126;
  --ok:#5cc490; --ok-soft:#183427; --warn:#e9a35a; --warn-soft:#3a2914; --bad:#f08a80; --bad-soft:#3d1c1a;
  --upi:#8fa2f0; --cash:#5cc490;
  --paper:#f3efe6; --paper-ink:#1b1b1b; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#171113; --surface:#221a1c; --ink:#f3ebec; --muted:#ab9a9e; --line:#3a2e31;
  --accent:#d8707e; --accent-ink:#1b0f11; --accent-soft:#3a2126;
  --ok:#5cc490; --ok-soft:#183427; --warn:#e9a35a; --warn-soft:#3a2914; --bad:#f08a80; --bad-soft:#3d1c1a;
  --upi:#8fa2f0; --cash:#5cc490;
  --paper:#f3efe6; --paper-ink:#1b1b1b; color-scheme:dark}
*{box-sizing:border-box}
html,body{background:var(--bg)}
body{color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.45;margin:0;padding-top:env(safe-area-inset-top,0px)}
[hidden]{display:none!important}
.wrap{max-width:560px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:12px 140px}
.wrap.wide{max-width:1180px;padding-bottom:40px}
header.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:6px 10px;flex-wrap:wrap}
.brand{font-weight:800;font-size:19px;letter-spacing:-.01em;min-width:0}
.brand small{display:block;font-weight:500;font-size:12px;color:var(--muted);letter-spacing:0}
.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:6px 12px;font:600 12px var(--f-body);cursor:pointer}
.dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.dot.on{background:var(--ok)}
nav.tabs{display:flex;gap:4px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:14px;overflow-x:auto}
nav.tabs button{flex:1;white-space:nowrap;border:0;background:transparent;color:var(--muted);font:600 14px var(--f-body);padding:9px 10px;border-radius:9px;cursor:pointer}
nav.tabs button[aria-selected="true"]{background:var(--accent);color:var(--accent-ink)}
section.panel{display:flex;flex-direction:column;gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:10px;min-width:0}
.label{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.field{display:flex;flex-direction:column;gap:4px;min-width:0}
.field>span{font-size:12px;color:var(--muted);font-weight:500}
input,select,textarea{width:100%;font:500 16px var(--f-body);color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 11px;min-width:0}
input:disabled{opacity:.7}
input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.num{font-family:var(--f-mono);text-align:right;font-variant-numeric:tabular-nums}
.btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 15px var(--f-body);padding:12px 14px;border-radius:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn.ghost{background:transparent}
.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.small{padding:7px 11px;font-size:13px;border-radius:9px}
.note{font-size:13px;color:var(--muted);margin:0}
.banner{background:var(--warn-soft);color:var(--warn);border-radius:12px;padding:10px 12px;font-size:13px;font-weight:500}
.banner.bad{background:var(--bad-soft);color:var(--bad)}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(96px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-weight:600;font-size:14px;z-index:20;max-width:calc(100% - 32px);text-align:center}
.status{display:inline-flex;align-items:center;gap:6px;font:700 11px var(--f-body);letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:999px;white-space:nowrap}
.status.pending{background:var(--warn-soft);color:var(--warn)}
.status.paid{background:var(--ok-soft);color:var(--ok)}
.status.void{background:var(--bad-soft);color:var(--bad);text-decoration:line-through}
.empty{text-align:center;color:var(--muted);padding:30px 10px}
.locked{display:flex;flex-direction:column;gap:2px;font-size:14px}
.locked b{font-weight:600}
.lock-ic{font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}

/* login */
.login{min-height:80vh;display:flex;align-items:center;justify-content:center;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.login form{width:100%;max-width:360px;display:flex;flex-direction:column;gap:12px}
.login h1{margin:0;font-size:24px;letter-spacing:-.01em}
.login .msg{min-height:20px;font-size:13px;color:var(--bad)}

/* counter: product picker + bill lines */
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--line);background:var(--bg);color:var(--ink);font:500 13px var(--f-body);padding:8px 11px;border-radius:10px;cursor:pointer;text-align:left}
.chip b{display:block;font:500 12px var(--f-mono);color:var(--muted)}
.lines{display:flex;flex-direction:column;gap:8px}
.line{display:grid;grid-template-columns:1fr auto;gap:6px 10px;align-items:center;border-bottom:1px dashed var(--line);padding-bottom:8px}
.line .nm{font-weight:600;min-width:0}
.line .nm small{display:block;font:500 11px var(--f-mono);color:var(--muted)}
.line .amt{font:600 15px var(--f-mono);text-align:right}
.line .ctl{grid-column:1/-1;display:flex;align-items:center;gap:8px}
.step{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.step button{border:0;background:var(--bg);color:var(--ink);width:38px;height:36px;font-size:18px;cursor:pointer}
.step input{width:56px;border:0;border-radius:0;text-align:center;padding:6px 2px;font-family:var(--f-mono)}
.line .rate{width:96px}
.line .x{margin-left:auto;border:0;background:transparent;color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;padding:6px 8px;border-radius:8px}
.line .x:hover{background:var(--bad-soft);color:var(--bad)}
.totalbar{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-top:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom,0px));z-index:5}
.totalbar .in{max-width:560px;margin:0 auto;display:flex;align-items:center;gap:12px}
.totalbar .amt{flex:1;min-width:0}
.totalbar .amt small{display:block;font-size:11px;color:var(--muted);font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.totalbar .amt strong{font:600 24px var(--f-mono);font-variant-numeric:tabular-nums}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.flow div{font-size:11px;font-weight:600;color:var(--muted);border-top:3px solid var(--line);padding-top:6px}
.flow div.done{color:var(--ok);border-color:var(--ok)}
.flow div.now{color:var(--accent);border-color:var(--accent)}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.actions .wide{grid-column:1/-1}
.paper{background:var(--paper);color:var(--paper-ink);font:13px/1.35 var(--f-mono);padding:18px 14px 26px;border-radius:4px;max-width:330px;margin:0 auto;width:100%;box-shadow:0 1px 0 var(--line),0 8px 24px -14px rgba(0,0,0,.35)}
.paper .c{text-align:center}.paper .b{font-weight:600}.paper .big{font-size:18px;font-weight:600}
.paper hr{border:0;border-top:1px dashed #999;margin:8px 0}
.paper .ln{display:flex;justify-content:space-between;gap:8px}
.paper .ln span:first-child{min-width:0;overflow-wrap:anywhere}
.paper .qr{display:flex;justify-content:center;margin:8px 0}
.paper .qr svg{width:170px;height:170px}
.list{display:flex;flex-direction:column;gap:8px}
.billrow{display:grid;grid-template-columns:1fr auto;gap:2px 10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;text-align:left;color:var(--ink);font:inherit;width:100%}
.billrow .r{text-align:right;font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-weight:600}
.billrow .m{font-size:12px;color:var(--muted)}

/* admin */
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface)}
.seg button{border:0;background:transparent;color:var(--muted);font:600 13px var(--f-body);padding:8px 12px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent)}
.toolbar input[type=date]{width:auto;padding:7px 9px;font-size:14px}
.live{font-size:12px;color:var(--muted);display:inline-flex;align-items:center;gap:6px;margin-left:auto}
.live .dot{background:var(--ok)}
@media (prefers-reduced-motion:no-preference){.live .dot{animation:pulse 2s infinite}@keyframes pulse{50%{opacity:.3}}}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;min-width:0}
.kpi span{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.kpi b{display:block;font:600 24px var(--f-mono);font-variant-numeric:tabular-nums;margin-top:4px;overflow-wrap:anywhere}
.kpi small{color:var(--muted);font-size:12px}
.kpi.lead{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.kpi.lead span,.kpi.lead small{color:inherit;opacity:.8}
.split{height:10px;border-radius:999px;overflow:hidden;display:flex;background:var(--line)}
.split i{display:block;height:100%}
.legend{display:flex;flex-wrap:wrap;gap:14px;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.grid2{display:grid;grid-template-columns:3fr 2fr;gap:14px;align-items:start}
.tbl-wrap{overflow-x:auto}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);text-align:left;padding:8px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
table.t td{padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
table.t td.n,table.t th.n{text-align:right;font-family:var(--f-mono);font-variant-numeric:tabular-nums;white-space:nowrap}
table.t tr:last-child td{border-bottom:0}
.bar{height:6px;border-radius:3px;background:var(--accent-soft);margin-top:5px}
.bar i{display:block;height:100%;border-radius:3px;background:var(--accent)}
.muted{color:var(--muted)}
.mono{font-family:var(--f-mono)}
.void-form{display:flex;gap:6px;margin-top:6px}
.void-form input{padding:6px 8px;font-size:13px}
@media (max-width:860px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}.grid2{grid-template-columns:1fr}}
@media (prefers-reduced-motion:no-preference){.btn{transition:transform .08s}.btn:active{transform:scale(.98)}}