:root {
  --fondo: #0f1217; --panel: #171c24; --panel2: #1e2530; --borde: #2a3340; --texto: #e8ecf1; --suave: #98a4b3;
  --ambar: #f5b301; --verde: #34d399; --rojo: #f87171;
}
* { box-sizing: border-box; }
html { color-scheme: dark; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 16px/1.5 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
a { color: var(--ambar); }
h1, h2, h3 { margin: 0 0 8px; line-height: 1.2; }
h1 { font-size: 28px; } h2 { font-size: 20px; } h3 { font-size: 17px; margin-top: 18px; }
p { margin: 0 0 12px; color: var(--suave); }

.barra { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--borde); background: var(--panel); position: sticky; top: 0; z-index: 5; }
.marca { display: flex; align-items: center; gap: 12px; }
.marca b { display: block; letter-spacing: .08em; }
.marca small { color: var(--suave); }
.logo { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 8px; background: #2563eb; font-weight: 800; font-size: 22px; }
.barra-acciones { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.estado { font-size: 14px; color: var(--ambar); padding: 6px 12px; border: 1px solid var(--borde); border-radius: 999px; }
.estado::before { content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: currentColor; margin-right: 8px; animation: late 1.2s infinite; }
.estado.listo { color: var(--verde); }
.estado.listo::before { animation: none; }
@keyframes late { 50% { opacity: .3; } }

main { max-width: 1040px; margin: 0 auto; padding: 24px 16px 40px; }
.presenta { margin-bottom: 20px; }
.nota { padding: 12px 14px; border: 1px solid var(--ambar); border-radius: 8px; color: var(--ambar); background: rgba(245, 179, 1, .08); }
.nota-suave { font-size: 14px; }

.rejilla { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.pantalla { display: flex; gap: 14px; padding: 16px; min-height: 44px; border: 1px solid var(--borde); border-radius: 12px; background: var(--panel); color: var(--texto); text-decoration: none; transition: border-color .15s, transform .15s; }
.pantalla:hover, .pantalla:focus-visible { border-color: var(--ambar); transform: translateY(-2px); outline: none; }
.pantalla:focus-visible { box-shadow: 0 0 0 3px rgba(245, 179, 1, .4); }
.icono { flex: none; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 12px; background: var(--panel2); color: var(--ambar); }
.icono svg { width: 32px; height: 32px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.cuerpo { display: flex; flex-direction: column; gap: 4px; }
.cuerpo b { font-size: 18px; }
.texto { color: var(--suave); font-size: 14px; }
.usuario { font-size: 13px; color: var(--verde); }
.bloqueo { display: none; font-size: 13px; color: var(--ambar); }
.pantalla.bloqueada { opacity: .55; cursor: not-allowed; }
.pantalla.bloqueada:hover { border-color: var(--borde); transform: none; }
.pantalla.bloqueada .bloqueo { display: block; }
.pantalla.bloqueada .usuario { display: none; }

.atajo { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin: 20px 0; padding: 16px; border: 1px dashed var(--borde); border-radius: 12px; }
.atajo p { margin: 0; }
.doble { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin-top: 14px; }
.tarjeta { padding: 16px; border: 1px solid var(--borde); border-radius: 12px; background: var(--panel); }
.qr { width: 180px; padding: 8px; border-radius: 8px; background: #fff; }
.qr svg { display: block; width: 100%; height: auto; }
#reinicio-pasos { display: flex; flex-wrap: wrap; gap: 8px; }

.btn { min-height: 44px; padding: 10px 18px; border: 1px solid var(--borde); border-radius: 8px; background: var(--panel2); color: var(--texto); font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { border-color: var(--ambar); }
.btn:focus-visible { outline: 3px solid rgba(245, 179, 1, .5); outline-offset: 2px; }
.btn-ambar { background: var(--ambar); border-color: var(--ambar); color: #1a1300; }
.btn-peligro { background: #7f1d1d; border-color: var(--rojo); }
.pie { margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--borde); font-size: 13px; color: var(--suave); }

.velo { position: fixed; inset: 0; z-index: 10; display: grid; place-items: center; padding: 16px; background: rgba(5, 8, 12, .8); overflow: auto; }
.velo[hidden] { display: none; }
.ventana { width: 100%; max-width: 640px; max-height: calc(100vh - 32px); overflow: auto; padding: 24px; border: 1px solid var(--borde); border-radius: 14px; background: var(--panel); }
.roles, .pasos { margin: 0 0 12px; padding-left: 22px; color: var(--suave); }
.roles li, .pasos li { margin-bottom: 6px; }
.roles b, .pasos b { color: var(--texto); }
.acciones { display: flex; justify-content: flex-end; margin-top: 16px; }

@media (max-width: 600px) {
  h1 { font-size: 24px; }
  .rejilla { grid-template-columns: 1fr; }
  .ventana { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) { .pantalla { transition: none; } .estado::before { animation: none; } }