:root {
  --marino: #2F3575;
  --celeste: #00DBE2;
  --azul: #1DA3FC;
  --fondo: #070a1c;
  --tarjeta: #0f1330;
  --tarjeta-2: #171c42;
  --texto: #eef1f8;
  --suave: #9aa3c7;
  --tenue: #7b83b0;
  --borde: rgba(255, 255, 255, 0.09);
  --borde-fuerte: rgba(255, 255, 255, 0.2);
  --ok: #30e88a;
  --aviso: #f0b84a;
  --mal: #f04a4a;
  --mal-texto: #ff7a7a;
  --radio: 12px;
  --radio-grande: 18px;
  --f-texto: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --f-num: 'DM Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--f-texto);
  font-size: 16px;
  line-height: 1.5;
  color: var(--texto);
  background: var(--fondo);
  -webkit-text-size-adjust: 100%;
}
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 2px solid var(--celeste); outline-offset: 2px; }
.solo-lector { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.num { font-family: var(--f-num); font-variant-numeric: tabular-nums; }
.suave { color: var(--suave); }
.vacio { color: var(--suave); }

/* ---------- botones ---------- */
.btn {
  appearance: none; cursor: pointer; width: 100%; min-height: 52px; padding: 12px 18px;
  border-radius: var(--radio); border: 1px solid var(--borde-fuerte);
  background: var(--tarjeta-2); color: var(--texto); font-weight: 600;
  transition: background .15s, transform .1s;
}
.btn:hover:not(:disabled) { background: #1e2552; }
.btn:active:not(:disabled) { transform: scale(0.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primario { background: var(--celeste); border-color: var(--celeste); color: var(--fondo); font-weight: 800; font-size: 18px; min-height: 60px; }
.btn.primario:hover:not(:disabled) { background: #33e6ec; }
.btn.suave { background: transparent; border-color: transparent; color: var(--suave); }
.btn.suave:hover:not(:disabled) { background: rgba(255, 255, 255, 0.05); }
.btn.peligro { background: transparent; border-color: rgba(240, 74, 74, 0.55); color: var(--mal-texto); }
.btn.peligro:hover:not(:disabled) { background: rgba(240, 74, 74, 0.12); }
.btn.chico { width: auto; min-height: 38px; padding: 6px 14px; font-size: 14px; }
.btn.confirmar { background: rgba(48, 232, 138, 0.14); border-color: rgba(48, 232, 138, 0.5); color: var(--ok); }
.btn.confirmar:hover:not(:disabled) { background: rgba(48, 232, 138, 0.22); }

/* ---------- campos ---------- */
.campo { display: flex; flex-direction: column; gap: 6px; }
.campo label { font-weight: 600; font-size: 14px; color: var(--suave); }
.campo input, .campo select {
  width: 100%; min-height: 52px; padding: 12px 14px; font-size: 18px;
  background: var(--fondo); border: 1px solid var(--borde-fuerte); border-radius: var(--radio);
}
.campo input::placeholder { color: var(--tenue); }
.campo input:focus, .campo select:focus { outline: none; border-color: var(--celeste); box-shadow: 0 0 0 3px rgba(0, 219, 226, 0.22); }
.campo input.pin { letter-spacing: .5em; font-family: var(--f-num); }
.error { color: var(--mal-texto); font-weight: 600; min-height: 1.5em; }

/* ---------- etiquetas y avisos ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 11px; border-radius: 20px;
  font-size: 13px; font-weight: 600; background: rgba(255, 255, 255, 0.07); color: var(--suave); white-space: nowrap;
}
.chip.ok { background: rgba(48, 232, 138, 0.14); color: var(--ok); }
.chip.aviso { background: rgba(240, 184, 74, 0.14); color: var(--aviso); }
.chip.mal { background: rgba(240, 74, 74, 0.16); color: var(--mal-texto); }
.chip.info { background: rgba(29, 163, 252, 0.15); color: var(--azul); }

.banner { padding: 12px 14px; border-radius: var(--radio); border: 1px solid var(--borde); background: var(--tarjeta); color: var(--texto); }
.banner.aviso { border-color: rgba(240, 184, 74, 0.45); background: rgba(240, 184, 74, 0.09); }
.banner.mal { border-color: rgba(240, 74, 74, 0.5); background: rgba(240, 74, 74, 0.1); }
.banner.ok { border-color: rgba(48, 232, 138, 0.45); background: rgba(48, 232, 138, 0.09); }

.tarjeta { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: var(--radio-grande); padding: 16px; }

/* ---------- ventana emergente ---------- */
.modal { position: fixed; inset: 0; background: rgba(3, 5, 14, 0.8); display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 50; }
.modal .caja { background: var(--tarjeta); border: 1px solid var(--borde-fuerte); border-radius: var(--radio-grande); padding: 22px; max-width: 460px; width: 100%; max-height: 92vh; overflow: auto; }
.modal img { width: 100%; border-radius: var(--radio); display: block; }
.modal .pin-grande { font-family: var(--f-num); font-weight: 500; font-size: 60px; letter-spacing: .12em; margin: 12px 0; color: var(--celeste); }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }