:root{
  --bg:#f4f5f7; --panel:#fff; --texto:#1c2430; --suave:#5f6b7a; --borde:#e2e5ea; --linea:#eef0f3;
  --marca:#0f766e; --marca-2:#0d5f59; --marca-suave:#e6f4f2; --side:#121a24; --side-texto:#c4ccd6; --side-activo:#1e2a38;
  --ok:#15803d; --mal:#b91c1c; --alerta:#b45309; --info:#1d4ed8;
  --radio:10px; --sombra:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:14px;color:var(--texto);background:var(--bg)}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--marca);text-decoration:none}
.oculto{display:none!important}

/* ---------- login ---------- */
.login{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(160deg,#0f2a2a 0%,#121a24 60%)}
.login-caja{width:100%;max-width:380px;background:var(--panel);border-radius:14px;padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;letter-spacing:-.01em}
.logo i{width:30px;height:30px;border-radius:8px;background:var(--marca);display:grid;place-items:center;font-style:normal;color:#fff;font-size:17px}
.login h1{font-size:15px;font-weight:500;color:var(--suave);margin:6px 0 22px}
.login .alt{margin-top:16px;text-align:center;font-size:13px;color:var(--suave)}

/* ---------- layout ---------- */
.shell{display:grid;grid-template-columns:232px 1fr;min-height:100%}
.side{background:var(--side);color:var(--side-texto);padding:18px 12px;display:flex;flex-direction:column;gap:2px;position:sticky;top:0;height:100vh;overflow:auto}
.side .logo{color:#fff;padding:4px 10px 18px}
.side a{display:flex;align-items:center;gap:10px;color:var(--side-texto);padding:9px 10px;border-radius:8px;font-size:14px}
.side a:hover{background:#18222e;color:#fff}
.side a.activo{background:var(--side-activo);color:#fff}
.side a span{width:18px;text-align:center;opacity:.8}
.side .grupo{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#6b7686;padding:14px 10px 6px}
.main{min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 28px;background:var(--panel);border-bottom:1px solid var(--borde);position:sticky;top:0;z-index:5}
.top .empresa{font-weight:600}
.top .usuario{color:var(--suave);font-size:13px;display:flex;gap:12px;align-items:center}
.btn.menu-movil{display:none}
.contenido{padding:24px 28px 60px;max-width:1400px;width:100%}
h2{font-size:20px;margin:0 0 4px;letter-spacing:-.01em}
.sub{color:var(--suave);margin:0 0 20px}
.cabecera{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.cabecera .sub{margin:0}

/* ---------- componentes ---------- */
.panel{background:var(--panel);border:1px solid var(--borde);border-radius:var(--radio);box-shadow:var(--sombra)}
.panel-cab{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--linea)}
.panel-cab h3{margin:0;font-size:15px}
.panel-cuerpo{padding:16px}
.grilla{display:grid;gap:16px}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.kpi{padding:16px}
.kpi .k{color:var(--suave);font-size:12.5px}
.kpi .v{font-size:24px;font-weight:650;margin-top:4px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.kpi .d{font-size:12.5px;color:var(--suave);margin-top:2px}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--borde);background:var(--panel);padding:8px 14px;border-radius:8px;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:#c9ced6}
.btn.pri{background:var(--marca);border-color:var(--marca);color:#fff}
.btn.pri:hover{background:var(--marca-2)}
.btn.chico{padding:5px 10px;font-size:13px}
.btn.peligro{color:var(--mal)}
.btn:disabled{opacity:.55;cursor:default}
.barra-herr{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
input[type=text],input[type=number],input[type=password],input[type=date],input[type=time],select,textarea{border:1px solid var(--borde);background:#fff;border-radius:8px;padding:8px 10px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--marca-suave);border-color:var(--marca)}
.buscar{max-width:260px}
label.campo{display:block;margin-bottom:12px}
label.campo>span{display:block;font-size:12.5px;color:var(--suave);margin-bottom:4px}
.fila{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
.check{display:inline-flex;align-items:center;gap:6px;margin-right:14px;cursor:pointer}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--borde);margin-bottom:18px;overflow:auto}
.tabs button{border:0;background:none;padding:10px 14px;cursor:pointer;color:var(--suave);border-bottom:2px solid transparent;white-space:nowrap}
.tabs button.activo{color:var(--texto);border-color:var(--marca);font-weight:600}
.tabla-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--linea);white-space:nowrap}
th{font-size:12px;font-weight:600;color:var(--suave);background:#fafbfc;position:sticky;top:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tbody tr:hover{background:#fafcfc}
tr.click{cursor:pointer}
td input[type=number]{width:96px;padding:5px 8px;text-align:right}
.chip{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#eef0f3;color:#3b4552}
.chip.ok{background:#e7f6ec;color:var(--ok)}.chip.mal{background:#fdecec;color:var(--mal)}.chip.alerta{background:#fdf3e2;color:var(--alerta)}.chip.info{background:#e8efff;color:var(--info)}.chip.marca{background:var(--marca-suave);color:var(--marca-2)}
.vacio{padding:36px;text-align:center;color:var(--suave)}
.barras-h .item{display:grid;grid-template-columns:140px 1fr 110px;gap:10px;align-items:center;margin:7px 0;font-size:13px}
.barras-h .pista{background:#eef0f3;border-radius:6px;height:12px;overflow:hidden}
.barras-h .relleno{background:var(--marca);height:100%;border-radius:6px}
.barras-v{display:flex;align-items:flex-end;gap:6px;height:170px;padding-top:10px}
.barras-v .col{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0}
.barras-v .b{width:100%;background:var(--marca);border-radius:5px 5px 0 0;min-height:2px}
.barras-v .l{font-size:11px;color:var(--suave)}
.paginador{display:flex;gap:8px;align-items:center;justify-content:flex-end;padding:12px 16px;color:var(--suave)}
.modal{position:fixed;inset:0;background:rgba(16,24,40,.45);display:grid;place-items:center;padding:20px;z-index:50}
.modal-caja{background:var(--panel);border-radius:14px;width:100%;max-width:720px;max-height:92vh;overflow:auto;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.modal-cab{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--linea);position:sticky;top:0;background:var(--panel);z-index:2}
.modal-cab h3{margin:0;font-size:16px}
.modal-cuerpo{padding:18px 20px}
.modal-pie{display:flex;justify-content:flex-end;gap:8px;padding:14px 20px;border-top:1px solid var(--linea);position:sticky;bottom:0;background:var(--panel)}
.cerrar{border:0;background:none;font-size:22px;cursor:pointer;color:var(--suave);line-height:1}
.aviso{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#1c2430;color:#fff;padding:11px 18px;border-radius:10px;z-index:60;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.aviso.mal{background:var(--mal)}
.error{color:var(--mal);font-size:13px;margin:8px 0 0;min-height:18px}
.cargando{padding:40px;text-align:center;color:var(--suave)}
.lista-edit .item{display:grid;gap:8px;grid-template-columns:1fr 130px 36px;margin-bottom:8px}
.nota{font-size:12.5px;color:var(--suave)}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:1100px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:1fr}}
@media (max-width:820px){
  .shell{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;bottom:0;width:250px;z-index:40;transform:translateX(-100%);transition:transform .2s}
  .side.abierto{transform:none}
  .btn.menu-movil{display:inline-flex}
  .contenido{padding:16px 16px 50px}
  .top{padding:12px 16px}
  .g2,.dos{grid-template-columns:1fr}
  .barras-h .item{grid-template-columns:90px 1fr 80px}
}

/* imagenes de productos */
td.foto{padding:3px 4px 3px 12px;width:44px}
.mini{width:30px;height:30px;border-radius:6px;object-fit:cover;display:block;background:#eef0f3}
.mini.sin{display:grid;place-items:center;font-size:8.5px;line-height:1;text-align:center;color:var(--alerta);border:1px dashed #e5c48f;background:#fdf8ef}
.foto-edit{display:flex;gap:16px;align-items:center;margin-bottom:14px}
.foto-prev{width:110px;height:110px;border-radius:10px;object-fit:cover;border:1px solid var(--borde);display:block;background:#fafbfc}
.foto-prev.sin{display:grid;place-items:center;color:var(--suave);font-size:12px;border-style:dashed}