/* ============================================================
   Neumáticos Carlos Alcaide · First Stop
   Negro + amarillo + blanco, estilo moderno y claro
   ============================================================ */
:root{
  --black:#0b0b0c;
  --ink:#17171a;
  --yellow:#ffd200;
  --yellow-dark:#e3ba00;
  --yellow-soft:#fff6cc;
  --bg:#f3f4f6;
  --card:#ffffff;
  --line:#e5e7eb;
  --text:#1f2328;
  --muted:#6b7280;
  --danger:#dc2626;
  --danger-soft:#fee2e2;
  --ok:#15803d;
  --ok-soft:#dcfce7;
  --info:#1d4ed8;
  --info-soft:#dbeafe;
  --warn:#b45309;
  --warn-soft:#fef3c7;
  --radius:14px;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 6px 20px rgba(16,24,40,.06);
  --shadow-lg:0 12px 40px rgba(0,0,0,.22);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--text);font-size:14.5px;line-height:1.45;
}
button{font:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}

.app{display:flex;min-height:100vh}

/* ---------- Sidebar ---------- */
.sidebar{
  width:264px;flex:0 0 264px;background:var(--black);color:#fff;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.brand{padding:26px 22px 22px;border-bottom:1px solid rgba(255,255,255,.09)}
.brand-group{
  display:inline-block;background:var(--yellow);color:var(--black);
  font-weight:800;font-size:15px;letter-spacing:.14em;
  padding:5px 10px 4px;border-radius:4px;
}
.brand-name{font-weight:700;font-size:16.5px;margin-top:12px;letter-spacing:.01em}
.brand-sub{color:#9ca3af;font-size:12px;margin-top:3px}
.nav{padding:16px 12px;display:flex;flex-direction:column;gap:3px;flex:1}
.nav button{
  display:flex;align-items:center;gap:11px;width:100%;
  background:none;border:0;color:#d1d5db;text-align:left;
  padding:10.5px 13px;border-radius:10px;font-weight:600;font-size:14px;
  transition:background .15s,color .15s;
}
.nav button:hover{background:rgba(255,255,255,.07);color:#fff}
.nav button.active{background:var(--yellow);color:var(--black)}
.nav-ico{width:20px;text-align:center;font-size:14px;flex:0 0 20px}
.sidebar-footer{padding:16px;border-top:1px solid rgba(255,255,255,.09);display:grid;gap:8px}

/* ---------- Main / topbar ---------- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 30px 16px;background:var(--bg);position:sticky;top:0;z-index:20;
}
.topbar-title{font-size:23px;font-weight:800;letter-spacing:-.01em}
.topbar-actions{display:flex;gap:10px;flex-wrap:wrap}
#view{padding:4px 30px 60px}

/* ---------- Botones ---------- */
.btn{
  border:1px solid transparent;border-radius:10px;font-weight:700;font-size:13.5px;
  padding:9px 16px;transition:filter .15s,background .15s,border-color .15s;
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--yellow);color:var(--black)}
.btn-primary:hover{background:var(--yellow-dark)}
.btn-dark{background:var(--black);color:#fff}
.btn-dark:hover{background:#2a2a2e}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:#c7cbd1;background:#fafafa}
.btn-danger-soft{background:var(--danger-soft);color:var(--danger)}
.btn-danger-soft:hover{background:#fecaca}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#e5e7eb;font-weight:600}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:6px 11px;font-size:12.5px;border-radius:8px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- Tarjetas / paneles ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-pad{padding:20px 22px}
.panel{margin-bottom:22px}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 22px;border-bottom:1px solid var(--line);
}
.panel-title{font-size:15.5px;font-weight:800}
.panel-body{padding:18px 22px}

/* ---------- KPIs ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:16px;margin-bottom:22px}
.kpi{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px 20px;position:relative;overflow:hidden;
}
.kpi::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--yellow)}
.kpi.kpi-black::before{background:var(--black)}
.kpi.kpi-red::before{background:var(--danger)}
.kpi.kpi-green::before{background:var(--ok)}
.kpi-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.kpi-value{font-size:26px;font-weight:800;margin-top:6px;letter-spacing:-.02em}
.kpi-hint{font-size:12.5px;color:var(--muted);margin-top:4px}

/* ---------- Tablas ---------- */
.table-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13.8px}
.tbl th{
  text-align:left;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);padding:10px 14px;border-bottom:1px solid var(--line);background:#fafafa;
  white-space:nowrap;
}
.tbl td{padding:12px 14px;border-bottom:1px solid #f0f1f3;vertical-align:middle}
.tbl tbody tr.trim-sel td{background:var(--yellow-soft)}
.tbl tbody tr:hover{background:#fcfcfd}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl .actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.tbl .strong{font-weight:700}
.t-empty{text-align:center;color:var(--muted);padding:34px 14px !important}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  font-size:11.8px;font-weight:700;padding:3.5px 11px;white-space:nowrap;
}
.badge::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-gray{background:#f3f4f6;color:#4b5563}
.badge-yellow{background:var(--warn-soft);color:var(--warn)}
.badge-blue{background:var(--info-soft);color:var(--info)}
.badge-green{background:var(--ok-soft);color:var(--ok)}
.badge-red{background:var(--danger-soft);color:var(--danger)}
.badge-black{background:var(--black);color:var(--yellow)}

/* ---------- Chips / filtros ---------- */
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:6px 14px;font-weight:600;font-size:12.8px;color:var(--muted);
}
.chip:hover{border-color:#c7cbd1}
.chip.active{background:var(--black);border-color:var(--black);color:var(--yellow)}

.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.toolbar .spacer{flex:1}
.search{
  border:1px solid var(--line);border-radius:10px;padding:8.5px 13px;min-width:230px;
  background:#fff;outline:none;
}
.search:focus{border-color:var(--black);box-shadow:0 0 0 3px rgba(11,11,12,.08)}

/* ---------- Formularios ---------- */
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
.field label{font-size:12.5px;font-weight:700;color:#374151}
.field .req{color:var(--danger)}
.input,select.input,textarea.input{
  border:1px solid var(--line);border-radius:10px;padding:9px 12px;background:#fff;outline:none;width:100%;
}
.input:focus{border-color:var(--black);box-shadow:0 0 0 3px rgba(11,11,12,.08)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.form-grid .full{grid-column:1 / -1}
.hint{font-size:12px;color:var(--muted)}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(10,10,12,.55);backdrop-filter:blur(2px);
  display:flex;align-items:flex-start;justify-content:center;z-index:100;
  padding:34px 18px;overflow-y:auto;
}
.modal{
  background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);
  width:100%;max-width:640px;animation:pop .18s ease-out;
}
.modal.modal-wide{max-width:980px}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.985)}to{opacity:1;transform:none}}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 24px;border-bottom:1px solid var(--line);
}
.modal-title{font-size:16.5px;font-weight:800}
.modal-close{background:#f3f4f6;border:0;border-radius:8px;width:32px;height:32px;font-size:15px;color:var(--muted)}
.modal-close:hover{background:#e5e7eb;color:var(--text)}
.modal-body{padding:20px 24px}
.modal-foot{
  display:flex;justify-content:flex-end;gap:10px;padding:16px 24px;
  border-top:1px solid var(--line);background:#fafafa;border-radius:0 0 18px 18px;
}

/* ---------- Editor de líneas ---------- */
.lines-editor{width:100%;border-collapse:collapse}
.lines-editor th{
  text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);padding:6px 6px;font-weight:700;
}
.lines-editor td{padding:4px 4px 4px 0;vertical-align:top}
.lines-editor .input{padding:7.5px 9px;font-size:13px}
.lines-editor select.input{padding:8.5px 9px}
.line-total{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;padding-top:11px !important;text-align:right}
.line-del{
  background:var(--danger-soft);color:var(--danger);border:0;border-radius:8px;
  width:30px;height:30px;font-size:14px;margin-top:2px;
}
.line-del:hover{background:#fecaca}
.totals-box{
  margin-top:14px;background:#fafafa;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;display:grid;gap:6px;max-width:360px;margin-left:auto;
}
.totals-row{display:flex;justify-content:space-between;font-size:13.5px}
.totals-row.grand{font-size:17px;font-weight:800;border-top:1px solid var(--line);padding-top:8px;margin-top:2px}
.totals-row .yellow-mark{background:var(--yellow);padding:1px 8px;border-radius:6px}

/* ---------- Toast ---------- */
#toast-root{position:fixed;bottom:22px;right:22px;display:flex;flex-direction:column;gap:9px;z-index:300}
.toast{
  background:var(--black);color:#fff;border-radius:11px;padding:12px 17px;
  box-shadow:var(--shadow-lg);font-weight:600;font-size:13.5px;
  display:flex;align-items:center;gap:10px;animation:pop .18s ease-out;max-width:360px;
}
.toast .dot{width:8px;height:8px;border-radius:50%;background:var(--yellow);flex:0 0 8px}
.toast.ok .dot{background:#22c55e}
.toast.err .dot{background:#ef4444}

/* ---------- Utilidades ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.mt{margin-top:16px}.mb{margin-bottom:16px}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.flex{display:flex;align-items:center;gap:10px}
.empty{
  text-align:center;padding:52px 20px;color:var(--muted);
}
.empty .big{font-size:42px;margin-bottom:10px}
.empty .title{font-size:16px;font-weight:800;color:var(--text);margin-bottom:5px}
.notice{
  background:var(--yellow-soft);border:1px solid #f3e28a;border-radius:12px;
  padding:13px 16px;font-size:13px;color:#6b5900;margin-bottom:18px;
}
.stock-low{color:var(--danger);font-weight:700}
.lowstock-list{display:grid;gap:8px}
.lowstock-item{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:9px 13px;background:#fafafa;border:1px solid var(--line);border-radius:10px;font-size:13.5px;
}

/* Tabs */
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin-bottom:18px}
.tabs button{
  background:none;border:0;padding:9px 16px;font-weight:700;font-size:13.8px;color:var(--muted);
  border-bottom:2.5px solid transparent;margin-bottom:-2px;
}
.tabs button.active{color:var(--black);border-bottom-color:var(--yellow)}

/* Resumen modelo 303 */
.res-303{
  border:2px solid var(--black);border-radius:16px;overflow:hidden;background:#fff;
}
.res-303-head{background:var(--black);color:var(--yellow);padding:14px 20px;display:flex;justify-content:space-between;align-items:center}
.res-303-head .t{font-weight:800;font-size:15px;letter-spacing:.02em}
.res-303-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.res-303-cell{padding:16px 20px;border-right:1px solid var(--line)}
.res-303-cell:last-child{border-right:0}
.res-303-cell .l{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.res-303-cell .v{font-size:21px;font-weight:800;margin-top:4px}
.res-303-cell.hl{background:var(--yellow-soft)}

/* ---------- Documento imprimible ---------- */
#print-area{display:none}
.doc{font-size:12.5px;color:#111;line-height:1.5}
.doc-header{background:var(--black);color:#fff;padding:20px 28px;display:flex;justify-content:space-between;align-items:center}
.doc-header .grp{background:var(--yellow);color:var(--black);font-weight:800;letter-spacing:.12em;padding:4px 10px;border-radius:4px;font-size:14px}
.doc-header .shop{font-size:19px;font-weight:800;margin-top:8px}
.doc-header .meta{font-size:11.5px;color:#c9ccd1;text-align:right}
.doc-body{padding:24px 28px}
.doc-row{display:flex;gap:26px;margin-bottom:18px}
.doc-box{flex:1;border:1px solid #d8dade;border-radius:9px;padding:12px 15px}
.doc-box .h{font-size:10.5px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:#6b7280;margin-bottom:5px}
.doc table{width:100%;border-collapse:collapse;margin:6px 0 14px}
.doc th{background:#f0f0f2;text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;padding:7px 10px;border:1px solid #d8dade}
.doc td{padding:7px 10px;border:1px solid #e2e3e6}
.doc .r{text-align:right;white-space:nowrap}
.doc-totals{margin-left:auto;width:290px}
.doc-totals td{border:1px solid #d8dade;padding:7px 10px}
.doc-totals .g{font-weight:800;background:var(--yellow);font-size:14px}
.doc-foot{margin-top:20px;font-size:10.5px;color:#6b7280;border-top:1px solid #d8dade;padding-top:10px}

@media print{
  body>*:not(#print-area){display:none !important}
  #print-area{display:block !important}
  .doc-header{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .doc-totals .g{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  @page{margin:14mm}
}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .app{flex-direction:column}
  .sidebar{width:100%;flex:none;height:auto;position:static}
  .nav{flex-direction:row;flex-wrap:wrap;padding:10px 12px}
  .nav button{width:auto}
  .sidebar-footer{grid-template-columns:1fr 1fr;display:grid}
  #view{padding:4px 16px 50px}
  .topbar{padding:16px}
  .grid-2{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}