:root {
  --bg: #101418; --card: #1b222b; --card2: #232c36; --txt: #f2f5f8;
  --mut: #8b98a5; --acc: #2d6cdf; --ok: #00c853; --mal: #ff8a80;
}
* { box-sizing: border-box; margin: 0; -webkit-tap-highlight-color: transparent; }
body {
  background: var(--bg); color: var(--txt);
  font-family: system-ui, sans-serif; min-height: 100dvh;
}

/* login */
.login-caja {
  max-width: 320px; margin: 18vh auto 0; padding: 24px;
  display: flex; flex-direction: column; gap: 12px;
}
.login-caja h1 { text-align: center; margin-bottom: 8px; }

/* layout app */
header {
  position: sticky; top: 0; display: flex; gap: 10px; align-items: center;
  padding: 10px 14px; background: var(--card); z-index: 5;
}
header select { flex: 1; font-size: 1.05rem; font-weight: 600; }
#quien { color: var(--mut); font-size: .85rem; }
main { padding: 12px 14px 90px; }
nav {
  position: fixed; bottom: 0; left: 0; right: 0; display: flex;
  background: var(--card); border-top: 1px solid var(--card2);
  padding-bottom: env(safe-area-inset-bottom);
}
nav button {
  flex: 1; background: none; border: 0; color: var(--mut);
  font-size: .95rem; padding: 12px 0;
}
nav button.activo { color: var(--txt); font-weight: 700; }

/* controles */
input, select {
  background: var(--card2); color: var(--txt); border: 1px solid #2e3a46;
  border-radius: 10px; padding: 12px; font-size: 1rem; width: 100%;
}
button {
  background: var(--acc); color: #fff; border: 0; border-radius: 10px;
  padding: 12px 16px; font-size: 1rem; font-weight: 600;
}
button.sec { background: var(--card2); }
button.ancho { width: 100%; margin-top: 12px; }
.fila-add { display: flex; gap: 8px; margin-top: 12px; }
.fila-add button { flex: 0 0 52px; }
.fila-filtro { margin-bottom: 8px; color: var(--mut); font-size: .9rem; }
.check { display: flex; gap: 6px; align-items: center; }
.check input { width: auto; }

/* listas */
ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
li {
  background: var(--card); border-radius: 12px; padding: 12px;
  display: flex; align-items: center; gap: 10px;
}
li .info { flex: 1; min-width: 0; }
li .nombre { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
li .meta { color: var(--mut); font-size: .8rem; }
li.comprado .nombre { text-decoration: line-through; color: var(--mut); }
li button { padding: 8px 12px; font-size: .9rem; }
li button.quitar { background: none; color: var(--mut); flex: 0 0 auto; }
.pill {
  font-size: .75rem; padding: 2px 8px; border-radius: 99px;
  background: var(--card2); color: var(--mut); flex: 0 0 auto;
}
.hay { color: var(--ok); } .falta { color: var(--mal); }
.error { color: var(--mal); min-height: 1.2em; text-align: center; }
.vacio { color: var(--mut); text-align: center; padding: 24px 0; }
h2 { font-size: .95rem; color: var(--mut); margin: 16px 0 8px; }

/* filtros del inventario */
.chips { display: flex; gap: 8px; margin: 10px 0; }
.chip { background: var(--card2); color: var(--mut); padding: 8px 14px; font-size: .9rem; border-radius: 99px; }
.chip.activo { background: var(--acc); color: #fff; }

.resumen { color: var(--mut); font-size: .85rem; margin: 4px 0 10px; }
.resumen b { color: var(--txt); }
.ayuda { color: var(--mut); font-size: .8rem; margin-bottom: 8px; }
.mini { padding: 4px 10px; font-size: .78rem; background: var(--card2); }

/* barra "estoy aquí" */
#aqui-barra {
  background: #1d3a2a; color: #b9f6ca; padding: 8px 14px; font-size: .9rem;
  display: flex; align-items: center; gap: 8px;
}
#aqui-barra b { color: #fff; }
#aqui-barra button { margin-left: auto; }

/* árbol de sitios */
.arbol li { display: flex; align-items: center; gap: 8px; }
.arbol .nivel { color: var(--mut); font-family: monospace; }
.lotes { margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
.lote {
  background: var(--card2); border-radius: 8px; padding: 8px 10px;
  font-size: .85rem; display: flex; gap: 8px; align-items: center;
}
.lote .cerrado { color: #ffcc80; }
.lote button { padding: 5px 10px; font-size: .78rem; margin-left: auto; }
li.bloque { display: block; }
li.bloque .cabecera { display: flex; align-items: center; gap: 10px; }
.destino { background: var(--card2); border-radius: 10px; padding: 10px; margin-bottom: 8px; }
.destino input, .destino select { margin-bottom: 6px; }

/* los desplegables deben verse como desplegables (con su flecha) */
select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--mut) 50%),
                    linear-gradient(135deg, var(--mut) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 34px;
}
main > .tab > select { margin-bottom: 8px; }

/* cantidades y caducidades */
li .qty { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; }
li .qty button { padding: 8px 12px; }
li .qty .n { min-width: 34px; text-align: center; font-weight: 700; }
.cad { color: #ffb74d; }
#caduca-pronto { margin-bottom: 12px; }
#caduca-pronto li { border-left: 4px solid #ffb74d; }
.campo { display: flex; flex-direction: column; gap: 4px; color: var(--mut); font-size: .85rem; }

/* botones rápidos de caducidad tras escanear */
.cad-botones { display: flex; gap: 8px; margin-top: 10px; justify-content: center; flex-wrap: wrap; }
.cad-botones button { background: var(--card2); font-size: .85rem; padding: 8px 12px; }

/* escáner */
.modo-toggle { display: flex; gap: 8px; margin-bottom: 10px; }
.modo { flex: 1; background: var(--card2); color: var(--mut); }
.modo.activo { background: var(--acc); color: #fff; }
#scan-wrap { position: relative; border-radius: 12px; overflow: hidden; background: #000; min-height: 120px; }
#scan-video { width: 100%; display: block; }
#scan-aim { position: absolute; inset: 22% 12%; border: 2px solid rgba(255,255,255,.55); border-radius: 10px; pointer-events: none; }
#scan-resultado { padding: 14px 6px; }
#scan-resultado .grande { font-size: 1.1rem; font-weight: 700; color: var(--txt); }

/* diálogo de alta */
dialog {
  background: var(--card); color: var(--txt); border: 1px solid var(--card2);
  border-radius: 14px; padding: 18px; width: min(92vw, 360px);
  display: none; flex-direction: column; gap: 10px; margin: auto;
}
dialog[open] { display: flex; }
dialog::backdrop { background: rgba(0,0,0,.6); }
dialog h2 { color: var(--txt); margin: 0; font-size: 1.05rem; }

li img.mini { width: 40px; height: 40px; object-fit: cover; border-radius: 8px; flex: 0 0 auto; }

#toast {
  position: fixed; bottom: 76px; left: 50%; transform: translateX(-50%);
  background: var(--card2); color: var(--txt); padding: 10px 18px;
  border-radius: 99px; font-size: .9rem; box-shadow: 0 4px 14px rgba(0,0,0,.4);
  z-index: 10; max-width: 90vw;
}