/* =====================================================================
   Papelería POS · hoja de estilos
   Paleta: tinta (azul marino), cobalto, resaltador amarillo, papel.
   Sin dependencias externas: funciona sin internet.
   ===================================================================== */
:root{
  --paper:#f6f4ef; --surface:#ffffff; --surface-2:#faf9f6; --line:#e4e0d6; --line-2:#d6d1c4;
  --ink:#1f2a44; --ink-2:#4a5470; --muted:#7b8299;
  --primary:#2b59c3; --primary-d:#1f46a0; --primary-soft:#e8eefb;
  --hl:#ffcf33; --hl-soft:#fff6d1;
  --ok:#1f8a70; --ok-soft:#e2f4ee; --warn:#c77d0a; --warn-soft:#fdf1dc; --bad:#c8364a; --bad-soft:#fbe6e9;
  --r:10px; --r-sm:7px; --sh:0 1px 2px rgba(31,42,68,.06),0 4px 14px rgba(31,42,68,.06);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "Courier New", monospace;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%}
body{font:14px/1.45 var(--font);color:var(--ink);background:var(--paper);display:flex;min-height:100vh}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .5em;line-height:1.2;letter-spacing:-.01em}
h1{font-size:22px} h2{font-size:17px} h3{font-size:15px}
.ic{width:18px;height:18px;flex:none;vertical-align:-4px}
.muted{color:var(--muted)} .small{font-size:12px} .right{text-align:right} .center{text-align:center}
.mono{font-family:var(--mono)} .nowrap{white-space:nowrap}
.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- Barra lateral ---------- */
.sidebar{width:232px;flex:none;background:var(--ink);color:#c9cfe0;display:flex;flex-direction:column;height:100vh;position:sticky;top:0}
.brand{display:flex;gap:10px;align-items:center;padding:18px 16px 14px;color:#fff;text-decoration:none!important}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--hl);color:var(--ink);display:grid;place-items:center;font-size:19px;font-weight:700;transform:rotate(-6deg)}
.brand-txt{font-weight:650;font-size:14px;line-height:1.15}
.brand-txt small{display:block;font-weight:400;color:#8f98b3;font-size:11.5px}
.sidebar nav{flex:1;overflow:auto;padding:4px 10px}
.nav-sec{font-size:10.5px;text-transform:uppercase;letter-spacing:.09em;color:#6f7896;margin:14px 8px 6px}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:#c9cfe0;text-decoration:none;margin-bottom:1px}
.sidebar nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.sidebar nav a.on{background:rgba(255,207,51,.14);color:#fff;box-shadow:inset 3px 0 0 var(--hl)}
.pill{margin-left:auto;background:var(--bad);color:#fff;border-radius:999px;font-size:11px;padding:1px 7px;font-weight:600}
.side-user{display:flex;align-items:center;border-top:1px solid rgba(255,255,255,.08);padding:10px}
.side-user .who{flex:1;display:flex;gap:9px;align-items:center;color:#e3e7f2;text-decoration:none;font-size:13px}
.side-user small{display:block;color:#8f98b3;font-size:11px}
.side-user .out{color:#8f98b3;padding:6px;border-radius:7px} .side-user .out:hover{background:rgba(255,255,255,.07);color:#fff}

/* ---------- Contenido ---------- */
.main{flex:1;min-width:0;padding:0 26px 40px}
.topbar{display:flex;align-items:center;gap:12px;padding:18px 0 14px;position:sticky;top:0;background:var(--paper);z-index:5}
.topbar h1{margin:0;flex:1}
.topbar-r{display:flex;gap:14px;align-items:center}
.only-mobile{display:none}

.grid{display:grid;gap:16px}
.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))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:18px}
.card > h2{display:flex;align-items:center;gap:8px}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.card-head h2{margin:0;flex:1}
.kpi{padding:16px 18px}
.kpi .lbl{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.kpi .val{font-size:26px;font-weight:650;letter-spacing:-.02em;margin-top:2px;font-variant-numeric:tabular-nums}
.kpi .sub{font-size:12px;color:var(--muted)}
.kpi.hl{background:linear-gradient(180deg,var(--hl-soft),#fff)}

.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin-bottom:14px}
.toolbar .grow{flex:1}

/* ---------- Tablas ---------- */
.tbl-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table.tbl{width:100%;border-collapse:collapse}
.tbl th,.tbl td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.tbl th{background:var(--surface-2);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2);font-weight:600;position:sticky;top:0}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover td{background:#fbfaf7}
.tbl tfoot td{font-weight:650;background:var(--surface-2)}
.tbl .thumb{width:38px;height:38px;border-radius:7px;object-fit:cover;background:var(--surface-2);display:block}
.tbl .thumb.ph{display:grid}

/* ---------- Formularios ---------- */
label.f{display:block;font-size:12.5px;color:var(--ink-2);font-weight:550;margin-bottom:4px}
.field{margin-bottom:12px}
input[type=text],input[type=number],input[type=password],input[type=date],input[type=email],input[type=search],select,textarea{
  width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:8px 10px;outline:none;transition:border .12s,box-shadow .12s}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
textarea{min-height:70px;resize:vertical}
.check{display:flex;gap:8px;align-items:center;cursor:pointer;user-select:none}
.check input{width:16px;height:16px;accent-color:var(--primary)}
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:4px 14px}
.form-grid .full{grid-column:1/-1}
.hint{font-size:11.5px;color:var(--muted);margin-top:3px}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font:inherit;font-weight:600;border:1px solid var(--line-2);background:#fff;color:var(--ink);
  padding:8px 14px;border-radius:var(--r-sm);cursor:pointer;text-decoration:none!important;white-space:nowrap;transition:background .12s,transform .05s}
.btn:hover{background:var(--surface-2)} .btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff} .btn-primary:hover{background:var(--primary-d)}
.btn-ok{background:var(--ok);border-color:var(--ok);color:#fff} .btn-ok:hover{filter:brightness(.95);background:var(--ok)}
.btn-bad{background:#fff;border-color:#ecb7bf;color:var(--bad)} .btn-bad:hover{background:var(--bad-soft)}
.btn-hl{background:var(--hl);border-color:#e9b912;color:var(--ink)} .btn-hl:hover{background:#ffc61a}
.btn-ghost{border-color:transparent;background:transparent}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn-lg{padding:13px 20px;font-size:16px}
.btn[disabled]{opacity:.5;pointer-events:none}

/* ---------- Etiquetas ---------- */
.tag{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);white-space:nowrap}
.tag-ok{background:var(--ok-soft);border-color:#bfe5d8;color:var(--ok)}
.tag-warn{background:var(--warn-soft);border-color:#f1d29c;color:var(--warn)}
.tag-bad{background:var(--bad-soft);border-color:#f0bcc4;color:var(--bad)}
.tag-blue{background:var(--primary-soft);border-color:#c8d6f5;color:var(--primary)}
.tag-hl{background:var(--hl-soft);border-color:#f3dc85;color:#7a5b00}

.flash{padding:11px 14px;border-radius:var(--r-sm);margin:0 0 14px;border:1px solid;font-weight:500}
.flash-ok{background:var(--ok-soft);border-color:#bfe5d8;color:#155f4d}
.flash-error{background:var(--bad-soft);border-color:#f0bcc4;color:#8e2333}
.flash-warn{background:var(--warn-soft);border-color:#f1d29c;color:#7c4d05}
.empty{text-align:center;padding:40px 20px;color:var(--muted)}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;flex-wrap:wrap}
.tabs a{padding:9px 14px;color:var(--ink-2);border-bottom:2px solid transparent;margin-bottom:-1px;font-weight:550;text-decoration:none}
.tabs a.on{color:var(--ink);border-color:var(--primary)}

.bar{height:6px;background:var(--line);border-radius:4px;overflow:hidden;width:56px}
.bar > i{display:block;height:100%;background:var(--bad)}

/* ---------- Login ---------- */
.login-wrap{flex:1;display:grid;place-items:center;padding:24px;
  background:radial-gradient(1200px 500px at 10% -10%, #fff6d1 0, transparent 60%), var(--paper)}
.login-card{width:100%;max-width:380px}
.login-card .brand-mark{width:46px;height:46px;font-size:26px;margin-bottom:14px}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;background:rgba(20,27,45,.45);display:none;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal.open{display:flex}
.modal-box{background:#fff;border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.25);width:100%;max-width:560px;max-height:92vh;overflow:auto}
.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-head h2{margin:0;flex:1}
.modal-body{padding:18px 20px}
.modal-foot{display:flex;gap:10px;justify-content:flex-end;padding:14px 20px;border-top:1px solid var(--line);background:var(--surface-2);border-radius:0 0 14px 14px}

/* =====================================================================
   PUNTO DE VENTA
   ===================================================================== */
.layout-pos .main{padding:0;display:flex;flex-direction:column;height:100vh;overflow:hidden}
.pos{flex:1;display:grid;grid-template-columns:minmax(0,1fr) 410px;min-height:0}
.pos-left{display:flex;flex-direction:column;min-height:0;padding:16px 18px 12px;gap:12px}
.pos-head{display:flex;gap:10px;align-items:center}
.pos-head .turno{font-size:12px;color:var(--muted)}
.scan{position:relative;flex:1}
.scan input{font-size:18px;padding:13px 14px 13px 46px;border-radius:11px;border:2px solid var(--line-2);background:#fff}
.scan input:focus{border-color:var(--primary)}
.scan .ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:22px;height:22px;color:var(--muted)}
.scan kbd{position:absolute;right:12px;top:50%;transform:translateY(-50%)}
kbd{font:600 11px var(--mono);background:var(--surface-2);border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;padding:1px 6px;color:var(--ink-2)}
.results{position:absolute;left:0;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line-2);border-radius:12px;box-shadow:0 14px 40px rgba(31,42,68,.18);z-index:20;max-height:420px;overflow:auto;display:none}
.results.open{display:block}
.res{display:flex;gap:12px;align-items:center;padding:9px 12px;cursor:pointer;border-bottom:1px solid var(--line)}
.res:last-child{border-bottom:0}
.res.act,.res:hover{background:var(--primary-soft)}
.res .ph{width:46px;height:46px}
.res .d{flex:1;min-width:0}
.res .d b{display:block;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.res .p{font-weight:700;font-size:15px}

.cats{display:flex;gap:6px;flex-wrap:wrap}
.cats button{font:inherit;font-size:12.5px;font-weight:600;border:1px solid var(--line-2);background:#fff;border-radius:999px;padding:5px 12px;cursor:pointer;color:var(--ink-2)}
.cats button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.quick{flex:1;overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:10px;align-content:start;padding:2px 2px 8px}
.qi{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;cursor:pointer;text-align:left;font:inherit;color:inherit;display:flex;flex-direction:column;gap:6px;
  transition:transform .08s,box-shadow .12s,border-color .12s;position:relative}
.qi:hover{border-color:var(--primary);box-shadow:0 6px 16px rgba(43,89,195,.14);transform:translateY(-1px)}
.qi:active{transform:scale(.98)}
.qi .ph{width:100%;aspect-ratio:4/3;border-radius:8px}
.qi .n{font-size:12.5px;font-weight:600;line-height:1.25;height:2.5em;overflow:hidden}
.qi .pr{font-weight:700;font-size:14px}
.qi .loc{position:absolute;top:12px;left:12px}
.ph{object-fit:cover;background:var(--surface-2);display:grid;place-items:center;font-weight:700;color:#fff;font-size:18px;border-radius:8px;overflow:hidden;flex:none}

.pos-right{background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.cart-head{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.cart-head h2{margin:0;flex:1;white-space:nowrap}
.cart{flex:1;overflow:auto}
.ci{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:10px;padding:10px 14px;border-bottom:1px dashed var(--line);align-items:center}
.ci.flash-add{animation:flashAdd .6s}
@keyframes flashAdd{from{background:var(--hl-soft)}to{background:transparent}}
.ci .ph{width:44px;height:44px;font-size:14px}
.ci .t{font-weight:600;font-size:13px;line-height:1.25}
.ci .m{font-size:12px;color:var(--muted);display:flex;gap:6px;align-items:center;margin-top:3px;flex-wrap:wrap}
.ci .imp{font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:8px;overflow:hidden;margin-top:4px}
.stepper button{border:0;background:var(--surface-2);width:26px;height:26px;cursor:pointer;font-size:15px;color:var(--ink)}
.stepper input{width:52px;border:0;border-radius:0;text-align:center;padding:3px;font-weight:600;box-shadow:none!important}
.ci .del{border:0;background:none;color:var(--muted);cursor:pointer;font-size:12px;padding:2px 0;margin-top:4px}
.ci .del:hover{color:var(--bad)}
.cart-empty{padding:50px 24px;text-align:center;color:var(--muted)}
.cart-empty .big{font-size:42px;opacity:.35}
.totals{border-top:1px solid var(--line);padding:12px 16px;background:var(--surface-2)}
.totals .row{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-2);margin-bottom:3px}
.totals .tot{display:flex;justify-content:space-between;align-items:baseline;margin-top:6px}
.totals .tot b{font-size:34px;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.pay-btn{margin:12px 16px 16px;font-size:18px;padding:16px;border-radius:12px}

/* Modal de cobro */
.pay-total{text-align:center;padding:6px 0 14px}
.pay-total .lbl{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.pay-total .v{font-size:40px;font-weight:700;letter-spacing:-.03em}
.pay-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:14px}
.pay-tabs button{font:inherit;font-weight:600;padding:10px 6px;border:1px solid var(--line-2);border-radius:10px;background:#fff;cursor:pointer;font-size:12.5px}
.pay-tabs button.on{border-color:var(--primary);background:var(--primary-soft);color:var(--primary-d);box-shadow:inset 0 0 0 1px var(--primary)}
.bills{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}
.bills button{font:inherit;font-weight:600;border:1px solid var(--line-2);background:#fff;border-radius:8px;padding:6px 11px;cursor:pointer}
.bills button:hover{background:var(--hl-soft)}
.pay-list{margin:10px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.pay-list div{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--line);font-size:13px}
.pay-list div:last-child{border-bottom:0}
.pay-sum{display:flex;justify-content:space-between;font-size:15px;font-weight:650;padding:6px 2px}
.pay-sum.change b{color:var(--ok);font-size:22px}
.pay-sum.due b{color:var(--bad)}
.big-input{font-size:22px!important;font-weight:650;text-align:right;padding:10px 12px!important}

.shortcuts{display:flex;gap:14px;font-size:11.5px;color:var(--muted);padding:6px 18px 10px;flex-wrap:wrap}

/* ---------- Responsivo ---------- */
@media (max-width:1100px){ .g4{grid-template-columns:repeat(2,minmax(0,1fr))} .pos{grid-template-columns:minmax(0,1fr) 350px} }
@media (max-width:860px){
  body{display:block}
  .sidebar{position:fixed;left:0;top:0;z-index:40;transform:translateX(-100%);transition:transform .2s}
  body.nav-open .sidebar{transform:none}
  .only-mobile{display:inline-flex}
  .main{padding:0 14px 30px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .layout-pos .main{height:auto;overflow:visible}
  .pos{grid-template-columns:1fr}
  .pos-right{border-left:0;border-top:1px solid var(--line)}
}
@media print{ .sidebar,.topbar,.toolbar,.no-print{display:none!important} .main{padding:0} body{background:#fff} .card{box-shadow:none} }