:root {
  --fondo: #f4f1ec;
  --panel: #ffffff;
  --tinta: #2c2622;
  --tenue: #7c7267;
  --borde: #e2d8c8;
  --acento: #8a5a3c;
  --acento-oscuro: #6f4530;
  --ok: #2f7d4f;
  --cero: #a4321f;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fondo);
  color: var(--tinta);
  margin: 0;
  line-height: 1.5;
}

a { color: var(--acento); }

/* ---------- Login (cliente y admin) ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.card {
  background: var(--panel);
  padding: 32px;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
  width: 340px;
  max-width: 100%;
}
.card .logo-login { display: block; width: 190px; max-width: 74%; margin: 4px auto 18px; }
.card h1 { font-size: 1.15rem; margin: 0 0 4px; }
.card .sub { color: var(--tenue); font-size: .85rem; margin: 0 0 20px; }
.card label { display: block; font-size: .85rem; font-weight: 600; margin-top: 12px; }
.card input {
  width: 100%;
  padding: 11px;
  margin-top: 6px;
  border: 1px solid var(--borde);
  border-radius: 8px;
}
.card button {
  margin-top: 18px;
  width: 100%;
  padding: 12px;
  background: var(--acento);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}
.card button:hover { background: var(--acento-oscuro); }
.error { color: var(--cero); font-size: .9rem; margin: 10px 0 0; }
.aviso-ok { color: var(--ok); font-size: .9rem; margin: 10px 0 0; }

/* ---------- Cabecera ---------- */
header {
  background: var(--panel);
  border-bottom: 1px solid var(--borde);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
header .marca { display: flex; align-items: center; gap: 10px; }
header .marca .logo { height: 34px; width: auto; display: block; }
header .marca .marca-sub { font-weight: 800; letter-spacing: .3px; color: var(--acento); font-size: .95rem; }
header .quien { color: var(--tenue); font-size: .85rem; margin-left: auto; }
header .salir { font-size: .85rem; }
header nav.principal { display: flex; gap: 4px; }
header nav.principal a {
  padding: 6px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--tenue);
  font-weight: 600;
  font-size: .9rem;
}
header nav.principal a.activo { background: var(--acento); color: #fff; }
header nav.principal a:hover:not(.activo) { background: #efe7da; }

/* ---------- Filtro de fecha ---------- */
.filtro {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.filtro label { font-size: .85rem; color: var(--tenue); font-weight: 600; }
.filtro input[type="date"] {
  margin-left: 6px;
  padding: 8px;
  border: 1px solid var(--borde);
  border-radius: 8px;
}
.filtro button {
  padding: 8px 16px;
  background: var(--acento);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}
.filtro .atajos { display: flex; gap: 12px; font-size: .82rem; }

/* ---------- Remitos ---------- */
.remito {
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}
.remito-cab {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  background: #efe7da;
  border-bottom: 1px solid var(--borde);
}
.remito-nro { font-weight: 800; letter-spacing: .3px; }
.remito-fecha { color: var(--tenue); font-size: .85rem; }
.remito-destino { color: var(--tinta); font-size: .9rem; }
.remito-tot { margin-left: auto; font-weight: 700; font-variant-numeric: tabular-nums; }
table.remito-items { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.remito-items td { padding: 8px 16px; border-bottom: 1px solid var(--borde); }
table.remito-items tr:last-child td { border-bottom: none; }
table.remito-items td.num { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; width: 90px; }

.contenido { max-width: 960px; margin: 0 auto; padding: 20px; }

.meta {
  color: var(--tenue);
  font-size: .8rem;
  margin: 0 0 14px;
}

/* ---------- Buscador ---------- */
.buscador {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--borde);
  border-radius: 10px;
  margin-bottom: 14px;
  font-size: .95rem;
}

/* ---------- Tabla de stock ---------- */
.tabla-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--borde); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--borde); }
th { background: #efe7da; font-weight: 700; position: sticky; top: 0; }
tbody tr:last-child td { border-bottom: none; }
td.num { text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; }
.stock-ok { color: var(--ok); }
.stock-cero { color: var(--cero); }
.pill {
  display: inline-block;
  background: #efe7da;
  color: var(--acento-oscuro);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: .78rem;
  font-weight: 600;
}

.vacio {
  background: var(--panel);
  border: 1px dashed var(--borde);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  color: var(--tenue);
}

/* ---------- Admin ---------- */
.bloque {
  background: var(--panel);
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 18px;
}
.bloque h2 { margin: 0 0 12px; font-size: 1rem; }
.grid-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.grid-form label { font-size: .82rem; font-weight: 600; display: block; }
.grid-form input, .grid-form select {
  width: 100%; padding: 9px; margin-top: 4px;
  border: 1px solid var(--borde); border-radius: 8px;
}
.grid-form .full { grid-column: 1 / -1; }
.btn {
  display: inline-block;
  padding: 9px 14px;
  background: var(--acento);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  font-size: .88rem;
}
.btn:hover { background: var(--acento-oscuro); }
.btn.sec { background: #ded3c1; color: var(--tinta); }
.inactivo td { opacity: .5; }
.tag-si { color: var(--ok); font-weight: 700; }
.tag-no { color: var(--cero); font-weight: 700; }

@media (max-width: 640px) {
  .grid-form { grid-template-columns: 1fr; }
  header { padding: 12px 14px; }
  .contenido { padding: 14px; }
  th, td { padding: 8px 10px; }
}