:root {
  --fondo: #14110b;
  --tarjeta: #201b12;
  --borde: #3a3122;
  --texto: #f5efe2;
  --tenue: #b5a98f;
  --oro: #e0b44c;
  --oro-fuerte: #f2c55c;
  --sobre-oro: #1b1406;
  --rojo: #ff6b5b;
  --verde: #5fd38a;
  --aviso: #f39c12;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font: 18px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

.barra {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: var(--fondo);
  border-bottom: 1px solid var(--borde);
}
.marca { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .04em; color: var(--oro); font-size: 16px; }

main { max-width: 560px; margin: 0 auto; padding: 16px; }
section[hidden], [hidden] { display: none !important; }

h1 { font-size: 26px; margin: 8px 0 16px; letter-spacing: .02em; }
h2 { font-size: 21px; margin: 0; }
p { margin: 0 0 12px; }
.nota { color: var(--tenue); font-size: 16px; }
.sub { color: var(--oro); font-weight: 700; margin: 0; }
.error { color: var(--rojo); font-weight: 700; }

.pasos { padding-left: 24px; margin: 0 0 16px; }
.pasos li { margin-bottom: 12px; }

button { font: inherit; cursor: pointer; border: 0; border-radius: 12px; touch-action: manipulation; }
button:disabled { opacity: .5; }
.b-grande {
  display: block; width: 100%; min-height: 58px; margin: 18px 0 0;
  background: var(--oro); color: var(--sobre-oro);
  font-size: 20px; font-weight: 800; letter-spacing: .03em;
}
.b-grande:active { background: var(--oro-fuerte); }
.b-secundario {
  display: block; width: 100%; min-height: 52px; margin: 12px 0 0;
  background: transparent; color: var(--texto); border: 2px solid var(--borde); font-weight: 700;
}
.b-peligro { background: var(--rojo); color: #200602; }
.b-peligro-texto { color: var(--rojo); }
.b-chico {
  min-height: 40px; padding: 0 14px; background: transparent; color: var(--oro);
  border: 2px solid var(--oro); font-size: 15px; font-weight: 800;
}
.b-icono { background: transparent; color: var(--texto); font-size: 26px; width: 44px; height: 44px; }
.b-enlace { background: none; color: var(--oro); font-size: 14px; font-weight: 700; text-decoration: underline; padding: 6px 0; }

.campo { display: block; margin: 0 0 18px; }
.campo span { display: block; font-weight: 800; font-size: 16px; color: var(--oro); }
.campo small { display: block; color: var(--tenue); font-size: 15px; margin: 2px 0 6px; }
.campo input {
  width: 100%; min-height: 56px; padding: 0 14px;
  font: inherit; font-size: 26px; font-weight: 700;
  background: var(--tarjeta); color: var(--texto);
  border: 2px solid var(--borde); border-radius: 12px;
}
.campo input:focus { outline: none; border-color: var(--oro); }

/* Espera */
#s-espera { text-align: center; padding-top: 32px; }
.girando {
  width: 54px; height: 54px; margin: 0 auto 20px;
  border: 5px solid var(--borde); border-top-color: var(--oro); border-radius: 50%;
  animation: girar 1s linear infinite;
}
@keyframes girar { to { transform: rotate(360deg); } }

/* Dígitos de vinculación */
#s-digitos { text-align: center; }
.digitos { font-size: 72px; font-weight: 800; letter-spacing: .18em; color: var(--oro); margin: 18px 0; font-variant-numeric: tabular-nums; }

/* NIP */
#s-nip { text-align: center; }
.nip-puntos { display: flex; justify-content: center; gap: 20px; margin: 22px 0; }
.nip-puntos i { width: 22px; height: 22px; border-radius: 50%; border: 3px solid var(--oro); }
.nip-puntos i.lleno { background: var(--oro); }
.teclado { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: 340px; margin: 0 auto; }
.teclado button {
  min-height: 68px; font-size: 30px; font-weight: 700;
  background: var(--tarjeta); color: var(--texto); border: 2px solid var(--borde);
}
.teclado button:active { background: var(--borde); }
.teclado button[data-t="ok"] { background: var(--oro); color: var(--sobre-oro); font-size: 24px; font-weight: 800; }

/* Mercado */
.mercado { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 14px; padding: 12px 14px 6px; margin-bottom: 8px; }
.m-titulo { font-size: 14px; font-weight: 800; letter-spacing: .04em; color: var(--oro); margin: 0 0 8px; }
.m-datos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.m-datos span { display: block; font-size: 13px; color: var(--tenue); font-weight: 700; }
.m-datos b { font-size: 17px; font-variant-numeric: tabular-nums; }
.m-pie { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--tenue); margin-top: 4px; }

.titulo-fila { display: flex; align-items: center; justify-content: space-between; }

/* Grupos */
.grupo { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 14px; padding: 14px; margin-bottom: 14px; }
.g-cab { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; }
.g-precios { display: grid; grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); gap: 8px; }
.g-precios span { display: block; font-size: 13px; color: var(--tenue); font-weight: 700; }
.g-precios b { font-size: 21px; font-variant-numeric: tabular-nums; }
.g-sec { color: var(--tenue); font-size: 15px; margin: 8px 0 0; }
.dens { margin-top: 12px; border-top: 1px solid var(--borde); padding-top: 8px; }
.dens summary { cursor: pointer; color: var(--oro); font-weight: 700; font-size: 15px; padding: 8px 0; }
.den { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; align-items: center; padding: 10px 0; border-top: 1px dashed var(--borde); }
.d-nombre { font-weight: 700; }
.d-valores { grid-column: 1; color: var(--tenue); font-variant-numeric: tabular-nums; font-size: 16px; }
.den .b-chico { grid-column: 2; grid-row: 1 / span 2; }

/* Confirmar */
.k-lista { margin: 12px 0; }
.k-fila { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 14px; padding: 14px; margin-bottom: 12px; }
.k-campo { display: block; color: var(--oro); font-weight: 800; font-size: 15px; }
.k-valores { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; font-size: 26px; font-variant-numeric: tabular-nums; }
.k-flecha { color: var(--tenue); }
.k-nuevo { color: var(--oro-fuerte); }
.k-por { display: inline-block; margin-top: 6px; font-size: 22px; font-weight: 800; }
.k-por.sube { color: var(--verde); }
.k-por.baja { color: var(--rojo); }

/* Ofrecer instalarla */
.instalar {
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px;
  background: var(--tarjeta); border: 2px solid var(--oro); border-radius: 14px; padding: 12px;
}
.instalar[hidden] { display: none; }
.instalar img { border-radius: 10px; flex: none; }
.i-texto { flex: 1; min-width: 0; }
.i-texto b { display: block; color: var(--oro); font-size: 15px; }
.i-texto span { display: block; color: var(--tenue); font-size: 14px; }
.i-botones { display: flex; flex-direction: column; align-items: center; flex: none; }
.i-si { background: var(--oro); color: var(--sobre-oro); }
.i-compartir { color: var(--oro); font-weight: 800; }

/* Aviso flotante (como el de CompraOro) */
.aviso {
  position: fixed; left: 16px; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 20;
  max-width: 528px; margin: 0 auto;
  background: var(--aviso); color: #000; font-weight: 800; text-align: center;
  padding: 14px; border-radius: 12px; box-shadow: 0 6px 20px rgba(0,0,0,.5);
}

dialog {
  width: calc(100% - 32px); max-width: 528px; max-height: 85vh;
  background: var(--tarjeta); color: var(--texto);
  border: 1px solid var(--borde); border-radius: 16px; padding: 18px;
}
dialog::backdrop { background: rgba(0,0,0,.7); }
dialog h2 { color: var(--oro); margin-bottom: 12px; }
.d-texto { white-space: pre-wrap; font-size: 15px; color: var(--tenue); max-height: 55vh; overflow: auto; }