/* ====== Base ====== */
:root{
  --tinta:#20303c; --suave:#5b6b78; --linea:#e4e8ec; --fondo:#f7f8fa;
  --marca:#8a4a2b; --marca-osc:#6e3a22; --wa:#25d366; --peligro:#c0392b;
  --radio:12px; --sombra:0 1px 3px rgba(20,40,60,.08),0 8px 24px rgba(20,40,60,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--tinta);background:var(--fondo);line-height:1.5}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ====== Header público ====== */
.top{display:flex;align-items:center;gap:1rem;justify-content:space-between;
  padding:1rem 1.25rem;background:#fff;border-bottom:1px solid var(--linea);
  position:sticky;top:0;z-index:10}
.marca{display:inline-flex;align-items:center;font-weight:700;font-size:1.25rem;color:var(--marca)}
.marca-logo{height:52px;width:auto}
.buscar input{padding:.55rem .8rem;border:1px solid var(--linea);border-radius:999px;
  min-width:min(320px,60vw);font-size:.95rem;outline:none}
.buscar input:focus{border-color:var(--marca)}
.contenido{max-width:1100px;margin:0 auto;padding:1.5rem 1.25rem}

/* ====== Filtros ====== */
.filtros{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem}
.filtros a{padding:.4rem .9rem;border:1px solid var(--linea);border-radius:999px;
  background:#fff;font-size:.9rem;color:var(--suave)}
.filtros a.activo{background:var(--marca);border-color:var(--marca);color:#fff}

/* ====== Grilla de productos ====== */
.grilla{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.25rem}
.card{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);
  overflow:hidden;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:var(--sombra)}
.card-img{aspect-ratio:1/1;background:#fff;padding:.5rem}
.card-img img{width:100%;height:100%;object-fit:contain}
.card-body{padding:.85rem}
.codigo{font-size:.72rem;letter-spacing:.04em;color:var(--suave);text-transform:uppercase}
.card-body h3{margin:.15rem 0 .35rem;font-size:1rem}
.desc{margin:0 0 .6rem;color:var(--suave);font-size:.85rem;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.precio{color:var(--marca);font-size:1.1rem}
.vacio{color:var(--suave);padding:2rem 0}

/* ====== Detalle ====== */
.detalle{display:grid;grid-template-columns:1fr 1fr;gap:2rem;background:#fff;
  border:1px solid var(--linea);border-radius:var(--radio);padding:1.5rem}
.detalle-img{background:#fff;border-radius:var(--radio);overflow:hidden}
.detalle-img img{width:100%;object-fit:contain}
.detalle-info h1{margin:.3rem 0}
.etiqueta{display:inline-block;background:var(--fondo);color:var(--suave);
  padding:.2rem .6rem;border-radius:999px;font-size:.8rem;margin-bottom:.5rem}
.desc-corta{color:var(--suave)}
.precio-grande{display:block;font-size:1.8rem;color:var(--marca);margin:.6rem 0 1rem}
.btn-wa{display:inline-block;background:var(--wa);color:#fff;font-weight:600;
  padding:.75rem 1.4rem;border-radius:999px}
.btn-wa:hover{filter:brightness(.95)}
.desc-larga{margin-top:1.25rem;padding-top:1.25rem;border-top:1px solid var(--linea);color:#3a4a56}
.volver{margin-top:1.25rem}
.volver a{color:var(--marca)}
.pie{text-align:center;color:var(--suave);padding:2rem 1rem;font-size:.85rem}
@media(max-width:640px){ .detalle{grid-template-columns:1fr} }

/* ================= PANEL ADMIN ================= */
.admin{background:var(--fondo)}
.admin-top{display:flex;justify-content:space-between;align-items:center;
  padding:.9rem 1.25rem;background:var(--tinta);color:#fff}
.admin-top .marca{color:#fff}
.admin-top nav a{margin-left:1.25rem;color:#c9d6df;font-size:.9rem}
.admin-top nav a:hover{color:#fff}
.admin-main{max-width:1000px;margin:0 auto;padding:1.5rem 1.25rem}
.admin-head{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}
.admin-head h1 small{color:var(--suave);font-weight:400;font-size:1rem}
.admin-head-acciones{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}
.admin-head-acciones form{margin:0}
.admin-head-acciones #input-xlsx{display:none}
.btn-sec{padding:.55rem .9rem;border:1px solid var(--linea);border-radius:8px;
  background:#fff;color:var(--suave);font-size:.9rem;font-weight:600;cursor:pointer;white-space:nowrap}
.btn-sec:hover{border-color:var(--marca);color:var(--marca)}

/* Filtro de tabla */
.filtro-tabla{display:flex;align-items:center;gap:.8rem;margin-bottom:1rem}
.filtro-tabla input{flex:1;max-width:420px;padding:.55rem .8rem;border:1px solid var(--linea);
  border-radius:999px;font-size:.95rem;outline:none}
.filtro-tabla input:focus{border-color:var(--marca)}
.filtro-cuenta{color:var(--suave);font-size:.85rem}

/* Aviso de importación OK */
.aviso-ok{background:#e9f6ec;color:#1e7e34;border:1px solid #cdeccf;
  padding:.7rem .9rem;border-radius:8px;font-size:.9rem;margin-bottom:1rem}
.aviso-ok b{font-weight:700}
.aviso-errores{margin:.5rem 0 0;padding-left:1.2rem;color:var(--peligro)}
.aviso-errores li{font-size:.85rem}
.btn{background:var(--marca);color:#fff;padding:.6rem 1.1rem;border-radius:8px;
  font-weight:600;border:none;cursor:pointer;font-size:.95rem}
.btn:hover{background:var(--marca-osc)}
.btn-sec{padding:.6rem 1.1rem;color:var(--suave)}

/* Tabla */
.tabla-wrap{overflow-x:auto;background:#fff;border:1px solid var(--linea);border-radius:var(--radio)}
.tabla{width:100%;border-collapse:collapse;font-size:.92rem}
.tabla th,.tabla td{padding:.7rem .8rem;text-align:left;border-bottom:1px solid var(--linea)}
.tabla th{background:#fafbfc;color:var(--suave);font-weight:600;font-size:.8rem;text-transform:uppercase}
.tabla .num{text-align:right;white-space:nowrap}
.mini{width:46px;height:46px;object-fit:cover;border-radius:8px;border:1px solid var(--linea)}
.fila-inactiva{opacity:.5}
.badge{padding:.15rem .55rem;border-radius:999px;font-size:.75rem;font-weight:600}
.badge.on{background:#f3e7dd;color:var(--marca)}
.badge.off{background:#f0f2f4;color:var(--suave)}
.acciones a{margin-right:.7rem;color:var(--marca);font-size:.88rem}
.acciones a.peligro{color:var(--peligro)}
code{background:#f0f2f4;padding:.1rem .4rem;border-radius:4px;font-size:.85rem}

/* Formulario */
.form{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:1.5rem;max-width:680px}
.form label{display:block;margin-bottom:1rem;font-weight:600;font-size:.9rem}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:.35rem;
  padding:.6rem .7rem;border:1px solid var(--linea);border-radius:8px;
  font-size:.95rem;font-family:inherit;font-weight:400}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--marca)}
.form small{font-weight:400;color:var(--suave)}
.form .fila{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form .check{display:flex;align-items:center;gap:.5rem}
.form .check input{width:auto;margin:0}
.form-actions{display:flex;align-items:center;gap:1rem;margin-top:.5rem}

/* Login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh}
.login-card{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);
  padding:2rem;width:min(360px,90vw);box-shadow:var(--sombra)}
.login-logo{display:block;margin:0 auto .75rem;height:110px;width:auto}
.login-card h1{font-size:1.15rem;text-align:center;color:var(--suave);font-weight:600;margin:0 0 1.5rem}
.login-card label{display:block;margin-bottom:1rem;font-size:.9rem;font-weight:600}
.login-card input{display:block;width:100%;margin-top:.35rem;padding:.6rem .7rem;
  border:1px solid var(--linea);border-radius:8px;font-size:.95rem}
.login-card button{width:100%;background:var(--marca);color:#fff;border:none;
  padding:.7rem;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer}
.alerta{background:#fdecea;color:var(--peligro);padding:.6rem .8rem;border-radius:8px;
  font-size:.88rem;margin-bottom:1rem}
@media(max-width:640px){ .form .fila{grid-template-columns:1fr} }