/* Poppins auto-alojada (subset latino) — sin dependencia de CDN, funciona offline */
@font-face{font-family:"Poppins";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/poppins-400.woff2") format("woff2")}
@font-face{font-family:"Poppins";font-style:normal;font-weight:500;font-display:swap;src:url("/fonts/poppins-500.woff2") format("woff2")}
@font-face{font-family:"Poppins";font-style:normal;font-weight:600;font-display:swap;src:url("/fonts/poppins-600.woff2") format("woff2")}
@font-face{font-family:"Poppins";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/poppins-700.woff2") format("woff2")}

:root{
  --cian:#00B3FF;
  --cian-600:#0092d6;
  --ink:#121212;
  --black:#000000;
  --muted:#6b7280;
  --line:#e6e8eb;
  --bg:#f4f6f8;
  --surface:#ffffff;
  --danger:#c62828;
  --warn:#8a6d1a;
  --radius:14px;
  --ring:rgba(0,179,255,.30);
  --font:"Poppins",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*{box-sizing:border-box}
body{
  font-family:var(--font);color:var(--ink);margin:0;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;min-height:100vh;
  padding:1.5rem 1rem 3rem;-webkit-font-smoothing:antialiased;
}

/* Encabezado de la app */
.topbar{width:100%;max-width:460px;display:flex;align-items:center;gap:.75rem;margin-bottom:1.1rem}
.topbar .logo{width:44px;height:44px;flex:none}
.topbar h1{font-size:1.1rem;margin:0;font-weight:600;color:var(--ink);letter-spacing:-.01em}
.topbar .tag{font-size:.76rem;color:var(--muted);margin:.1rem 0 0;font-weight:400}

/* Tarjeta */
.card{
  background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);
  padding:1.6rem;max-width:460px;width:100%;box-shadow:0 6px 24px rgba(18,18,18,.06);
}
h2{margin:0 0 .3rem;font-size:1.2rem;font-weight:600;letter-spacing:-.01em}
h3{margin:0 0 .3rem;font-size:1rem;font-weight:600;color:var(--ink)}
.sub{color:var(--muted);font-size:.86rem;margin:0 0 1.2rem;line-height:1.5;font-weight:400}
.sub code{font-family:var(--mono);font-size:.82em;background:var(--bg);padding:.05rem .3rem;border-radius:4px;color:var(--ink)}
label{display:block;font-size:.72rem;font-weight:600;color:var(--muted);margin-bottom:.45rem;text-transform:uppercase;letter-spacing:.05em}

/* Filas de formulario */
.row{display:flex;gap:.5rem;margin-bottom:1.25rem}
input{
  flex:1;padding:.7rem .8rem;font-size:1rem;border:1.5px solid var(--line);border-radius:10px;
  font-family:var(--mono);color:var(--ink);transition:border-color .15s,box-shadow .15s;min-width:0;background:#fff;
}
input::placeholder{color:#aab2bd;font-family:var(--font)}
input:focus{outline:none;border-color:var(--cian);box-shadow:0 0 0 3px var(--ring)}
input[type=file]{font-size:.85rem;font-family:var(--font);padding:.55rem;background:var(--bg);cursor:pointer}

/* Botones */
button{
  padding:.7rem 1.15rem;font-size:.9rem;font-weight:600;font-family:var(--font);
  border:1.5px solid transparent;border-radius:10px;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s,transform .05s;white-space:nowrap;
}
button:active{transform:translateY(1px)}
button:disabled{opacity:.5;cursor:default}
.btn-primary{background:var(--cian);color:var(--ink)}
.btn-primary:hover:not(:disabled){background:var(--cian-600);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover:not(:disabled){border-color:var(--cian);color:var(--cian-600)}

/* Buscador con autocompletado */
.search{position:relative;flex:1;display:flex;min-width:0}
.search input{width:100%}
.sugerencias{
  position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;
  border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 28px rgba(18,18,18,.13);
  max-height:280px;overflow-y:auto;z-index:10;display:none;
}
.sugerencias.show{display:block}
.sugerencias .item{padding:.6rem .7rem;cursor:pointer;border-bottom:1px solid #f1f3f5}
.sugerencias .item:last-child{border-bottom:none}
.sugerencias .item:hover,.sugerencias .item.activo{background:#e8f8ff}
.sugerencias .item .cod{font-family:var(--mono);font-weight:700;font-size:.9rem;color:var(--ink)}
.sugerencias .item .nom{font-size:.8rem;color:var(--muted);display:block;margin-top:.12rem}
.sugerencias .vacio{padding:.7rem;font-size:.85rem;color:var(--muted);text-align:center}

/* Resultado: QR + stock */
.result{border-top:1px solid var(--line);margin-top:1.4rem;padding-top:1.4rem;text-align:center;display:none}
.result.show{display:block;animation:fade .2s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.qr-wrap{display:inline-block;padding:.65rem;background:#fff;border:1.5px solid var(--cian);border-radius:14px;margin-bottom:.85rem}
#qr{display:block;width:210px;height:210px}
.code{font-weight:700;font-family:var(--mono);font-size:1.05rem;margin:0 0 .15rem;color:var(--ink)}
.nombre{font-size:.92rem;color:var(--ink);margin:0 0 .5rem;line-height:1.4;font-weight:500}
.url{font-size:.74rem;color:var(--muted);margin:0 0 1rem;word-break:break-all;font-family:var(--mono)}
.actions{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap}

/* Mensajes */
.error{color:var(--danger);font-size:.85rem;margin:.6rem 0 0;font-weight:500}
.aviso{color:var(--warn);font-size:.82rem;margin:.5rem 0 0}

/* Tabla de stock */
.stock{margin-top:1.25rem;text-align:left}
.stock table{width:100%;border-collapse:collapse;font-size:.88rem;overflow:hidden;border-radius:10px;border:1px solid var(--line)}
.stock th,.stock td{padding:.6rem .7rem;border-bottom:1px solid var(--line)}
.stock thead th{background:var(--ink);color:#fff;font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.stock tbody tr:last-child td{border-bottom:none}
.stock tbody tr:nth-child(even){background:#f7f9fb}
.stock td.qty,.stock th.qty{text-align:right;font-variant-numeric:tabular-nums}
.stock td.qty{font-weight:700}
.stock .cero{color:var(--muted);font-weight:400}
.stock tr.total td{background:#e8f8ff;font-weight:700;border-top:2px solid var(--cian)}

/* Sección lote */
.lote{border-top:1px solid var(--line);margin-top:1.5rem;padding-top:1.35rem}

.footer{max-width:460px;width:100%;text-align:center;color:var(--muted);font-size:.74rem;margin-top:1.25rem;font-weight:400}