:root{
  --bg:#f3f4f6; --card:#fff; --ink:#111827; --muted:#6b7280; --line:#e5e7eb;
  --navy:#0f172a; --navy2:#1e293b; --amber:#f59e0b; --amber-d:#d97706;
  --ok:#15803d; --okbg:#dcfce7; --err:#b91c1c; --errbg:#fee2e2; --warn:#92400e; --warnbg:#fef3c7; --blue:#1d4ed8; --bluebg:#dbeafe;
  --r:10px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--blue);text-decoration:none}
h1,h2,h3{margin:0 0 .5rem;line-height:1.2}
h3{font-size:1.05rem}
.muted{color:var(--muted)}
small.muted{display:block;margin-top:2px;font-size:.8rem}
.ic{width:18px;height:18px;flex:none}
.r{text-align:right}.nowrap{white-space:nowrap}

/* Shell */
.shell{display:flex;min-height:100vh}
.side{width:248px;background:var(--navy);color:#cbd5e1;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;flex:none}
.brand{display:flex;gap:10px;align-items:center;padding:18px 18px;font-weight:700;color:#fff;border-bottom:1px solid var(--navy2);letter-spacing:.3px}
.brand .ic{color:var(--amber);width:24px;height:24px}
.side nav{flex:1;overflow-y:auto;padding:8px 8px}
.side details{margin-bottom:2px}
.side summary,.nav-top{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;cursor:pointer;color:#e2e8f0;list-style:none;font-weight:500}
.side summary::-webkit-details-marker{display:none}
.side summary:hover,.nav-top:hover{background:var(--navy2)}
.side details a{display:block;padding:6px 12px 6px 40px;color:#94a3b8;border-radius:6px;font-size:.92rem}
.side details a:hover{color:#fff;background:var(--navy2)}
.side details a.on,.nav-top.on{color:var(--amber);background:var(--navy2)}
.nav-top{color:#e2e8f0}
.who{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-top:1px solid var(--navy2);font-size:.88rem}
.who small{display:block;color:#94a3b8;font-size:.75rem}
.who a{color:#94a3b8}.who a:hover{color:var(--amber)}
.main{flex:1;min-width:0}
.top{display:flex;align-items:center;gap:12px;padding:14px 22px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top h1{margin:0;font-size:1.25rem;flex:1}
.burger{display:none;background:none;border:0;padding:4px;cursor:pointer;color:var(--ink)}
.content{padding:20px 22px 60px;max-width:1500px}
.content-plain{min-height:100vh}

/* Cards, forms, buttons */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;margin-bottom:16px}
.card.flat{padding:0}
.table-wrap{overflow-x:auto;padding:0}
.table-wrap h3{padding:14px 16px 0}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.toolbar .search{display:flex;gap:8px;flex:1;min-width:200px}
.toolbar .search input{flex:1;max-width:340px}
.filtros label{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:.9rem}
input,select,textarea{font:inherit;color:inherit;padding:8px 10px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;width:100%;min-width:0}
input:focus,select:focus,textarea:focus{outline:2px solid var(--amber);outline-offset:-1px;border-color:var(--amber)}
.filtros input,.toolbar input,.toolbar select{width:auto}
input[type=checkbox]{width:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:8px;border:1px solid #cbd5e1;background:#fff;color:var(--ink);font:inherit;font-weight:500;cursor:pointer;white-space:nowrap}
.btn:hover{background:#f8fafc}
.btn.primary{background:var(--amber);border-color:var(--amber);color:#111}
.btn.primary:hover{background:var(--amber-d)}
.btn.danger{background:#fff;border-color:#fca5a5;color:var(--err)}
.btn.danger:hover{background:var(--errbg)}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn.sm{padding:4px 10px;font-size:.85rem}
.btn.lg{padding:14px 22px;font-size:1.1rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:820px}
.fld{display:flex;flex-direction:column;gap:5px}
.fld>span{font-size:.85rem;color:var(--muted);font-weight:600}
.span2{grid-column:1/-1}
.check{display:flex;gap:8px;align-items:center}
.form-actions{display:flex;gap:10px;align-items:center;margin-top:6px}
.inline-del{max-width:820px;margin-top:-6px}
.fld-inline{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.fld-inline .fld{min-width:150px;flex:1}

/* Tables */
.tbl{width:100%;border-collapse:collapse}
.tbl th{background:#f8fafc;text-align:left;font-size:.78rem;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);padding:9px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:9px 12px;border-bottom:1px solid #f1f5f9;vertical-align:middle}
.tbl tr:hover td{background:#fafafa}
.tbl th.r,.tbl td.r{text-align:right}
.tbl tr.total td{font-weight:700;background:#f8fafc;border-top:2px solid var(--line)}
.tbl td.empty{text-align:center;color:var(--muted);padding:26px}
.tbl tr.row-warn td{background:#fffbeb}
.tbl tr.row-bad td{background:#fef2f2}

/* Badges / flash */
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:.78rem;font-weight:600}
.b-gray{background:#e5e7eb;color:#374151}.b-ok{background:var(--okbg);color:var(--ok)}.b-err{background:var(--errbg);color:var(--err)}
.b-warn{background:var(--warnbg);color:var(--warn)}.b-blue{background:var(--bluebg);color:var(--blue)}
.flash{padding:11px 14px;border-radius:8px;margin-bottom:14px;font-weight:500}
.flash.ok{background:var(--okbg);color:var(--ok)}.flash.err{background:var(--errbg);color:var(--err)}.flash.warn{background:var(--warnbg);color:var(--warn)}

/* Dashboard */
.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;margin-bottom:16px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;display:block;color:inherit}
.kpi:hover{border-color:var(--amber)}
.kpi span{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;font-weight:600}
.kpi strong{display:block;font-size:1.65rem;margin-top:4px}
.kpi small{color:var(--muted)}
.kpi.alert strong{color:var(--err)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.bars{display:flex;align-items:flex-end;gap:10px;height:150px;padding:10px 4px 0}
.bars div{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;font-size:.72rem;color:var(--muted)}
.bars i{display:block;width:100%;background:var(--amber);border-radius:4px 4px 0 0;min-height:2px}
.bars b{color:var(--ink);font-size:.72rem;margin-bottom:3px}

/* Login */
.login-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.login-hero{background:linear-gradient(160deg,var(--navy),#1e293b);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:60px}
.login-hero .ic{width:56px;height:56px;color:var(--amber);margin-bottom:18px}
.login-hero h1{font-size:2.1rem}.login-hero p{color:#94a3b8;max-width:420px}
.login-form{display:flex;align-items:center;justify-content:center;padding:30px;background:#fff}
.login-form form{width:100%;max-width:360px;display:flex;flex-direction:column;gap:14px}

/* POS */
.pos{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:16px;align-items:start}
.pos-search{display:flex;gap:8px;margin-bottom:10px}
.pos-search input{font-size:1.1rem;padding:12px}
.pos-results{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;max-height:56vh;overflow:auto}
.prod-tile{background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px;text-align:left;cursor:pointer;font:inherit}
.prod-tile:hover{border-color:var(--amber);background:#fffbeb}
.prod-tile b{display:block;font-size:.92rem}.prod-tile span{color:var(--muted);font-size:.8rem}.prod-tile em{font-style:normal;font-weight:700;display:block;margin-top:4px}
.cart{position:sticky;top:70px}
.cart-lines{max-height:34vh;overflow:auto;margin:8px 0}
.line{display:grid;grid-template-columns:1fr auto auto;gap:8px;padding:8px 0;border-bottom:1px solid #f1f5f9;align-items:center}
.line .nm{font-weight:600;font-size:.92rem}.line .sub{font-size:.78rem;color:var(--muted)}
.line input{width:78px;text-align:right;padding:5px 7px}
.line .x{background:none;border:0;color:var(--err);cursor:pointer;font-size:1.2rem}
.tot{display:flex;justify-content:space-between;padding:3px 0}
.tot.big{font-size:1.5rem;font-weight:800;border-top:2px solid var(--ink);margin-top:6px;padding-top:8px}
.pay-box{background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:10px;margin-top:10px}
.seg{display:flex;border:1px solid #cbd5e1;border-radius:8px;overflow:hidden;margin-bottom:8px}
.seg button{flex:1;padding:8px;border:0;background:#fff;font:inherit;cursor:pointer}
.seg button.on{background:var(--navy);color:#fff}
.pay-row{display:grid;grid-template-columns:110px 1fr;gap:8px;align-items:center;margin:6px 0}
.cambio{font-size:1.2rem;font-weight:700;color:var(--ok)}

/* Botonera */
.botonera{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.truck{background:#fff;border:2px solid var(--line);border-radius:14px;padding:16px}
.truck.run{border-color:var(--amber);background:#fffbeb}
.truck h2{display:flex;justify-content:space-between;align-items:center;font-size:1.3rem}
.truck .count{font-size:2.6rem;font-weight:800;line-height:1}
.truck .btn{width:100%;padding:18px;font-size:1.2rem;margin-top:10px}

/* Etiquetas, tickets, vales: impresión */
.print-page{background:#fff;padding:12px}
.ticket{width:300px;margin:0 auto;font:12px/1.35 "Courier New",monospace;color:#000}
.ticket h2{text-align:center;font-size:15px;margin:0}
.ticket .c{text-align:center}.ticket hr{border:0;border-top:1px dashed #000;margin:6px 0}
.ticket table{width:100%;border-collapse:collapse}.ticket td{padding:1px 0;vertical-align:top}.ticket .rr{text-align:right}
.noprint{margin:0 auto 12px;max-width:760px;display:flex;gap:8px;justify-content:center}
.labels{display:flex;flex-wrap:wrap;gap:4px}
.label{border:1px dashed #bbb;padding:2mm;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;page-break-inside:avoid;font-family:Arial,sans-serif}
.label .n{font-size:9pt;font-weight:700;line-height:1.1;max-height:2.3em;overflow:hidden}
.label svg{max-width:100%;height:auto}
.label .p{font-size:11pt;font-weight:800}
.vale-doc{max-width:720px;margin:0 auto;border:2px solid #000;padding:18px;font-family:Arial,sans-serif}
.vale-doc h2{text-align:center;margin-bottom:12px}
.vale-doc table{width:100%;border-collapse:collapse}.vale-doc td{padding:6px 4px;border-bottom:1px solid #999}
.vale-doc .firmas{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px;text-align:center}
.vale-doc .firmas div{border-top:1px solid #000;padding-top:4px;font-size:.85rem}
@media print{
  .noprint,.side,.top,.burger{display:none!important}
  body{background:#fff}.print-page{padding:0}
  .label{border:0}
}

/* Responsive */
@media (max-width:1100px){.pos{grid-template-columns:1fr}.cart{position:static}.grid2{grid-template-columns:1fr}}
@media (max-width:860px){
  .side{position:fixed;left:-260px;top:0;z-index:30;transition:left .2s}
  .side.open{left:0;box-shadow:0 0 0 100vw rgba(0,0,0,.45)}
  .burger{display:block}
  .content{padding:14px 12px 50px}
  .form-grid{grid-template-columns:1fr}
  .login-wrap{grid-template-columns:1fr}.login-hero{display:none}
  .top{padding:10px 12px}
}