/* Estilos de la versión para el público (celular) y del proyector.
   Azul = va hacia New York. Verde = vuelve con la respuesta. */
:root {
  --fondo: #f4f5f7;
  --superficie: #ffffff;
  --texto: #14161b;
  --suave: #555b67;
  --borde: #d9dce2;
  --ida: #2453d4;
  --vuelta: #127a47;
  --error: #b8321c;
  --radio: 16px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  line-height: 1.45;
  -webkit-tap-highlight-color: transparent;
}

h1, h2 { margin: 0; letter-spacing: -0.02em; }

.boton {
  appearance: none;
  border: 0;
  width: 100%;
  min-height: 60px;
  border-radius: var(--radio);
  background: var(--ida);
  color: #fff;
  font: inherit;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.12s ease, opacity 0.2s ease;
}
.boton:active { transform: scale(0.97); }
.boton:disabled { opacity: 0.5; }
.boton:focus-visible, input:focus-visible { outline: 3px solid var(--ida); outline-offset: 2px; }

/* ================= Celular del público ================= */

.publico .app {
  max-width: 480px;
  margin: 0 auto;
  padding: max(24px, env(safe-area-inset-top)) 20px max(32px, env(safe-area-inset-bottom));
}

.publico h1 { font-size: 1.9rem; line-height: 1.15; }
.lead { margin: 10px 0 24px; color: var(--suave); font-size: 1.1rem; }

form { display: grid; gap: 12px; }
.pregunta { margin: 12px 0 0; font-weight: 700; font-size: 1.15rem; }

#nombre {
  font: inherit;
  font-size: 1.2rem; /* >= 16px evita el zoom automático en iPhone */
  padding: 14px 16px;
  border: 2px solid var(--borde);
  border-radius: var(--radio);
  background: var(--superficie);
  color: var(--texto);
}

.productos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.productos label {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 14px 8px;
  border: 2px solid var(--borde);
  border-radius: var(--radio);
  background: var(--superficie);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.productos input { position: absolute; opacity: 0; pointer-events: none; }
.productos .icono { font-size: 2.4rem; line-height: 1; }
.productos label:has(input:checked) { border-color: var(--ida); background: color-mix(in srgb, var(--ida) 8%, var(--superficie)); }
.productos label:active { transform: scale(0.97); }

#btn-enviar { margin-top: 16px; }
.aviso { margin: 0; min-height: 1.4em; color: var(--error); font-weight: 600; text-align: center; }

/* Ruta: celular -> Toronto -> New York */
.ruta {
  position: relative;
  display: grid;
  gap: 52px;
  margin: 24px 0 8px;
  padding-left: 4px;
}
.ruta::before { /* La línea que une las paradas */
  content: "";
  position: absolute;
  left: 21px;
  top: 18px;
  bottom: 18px;
  border-left: 3px dashed var(--borde);
}
.parada { display: flex; gap: 16px; align-items: center; position: relative; }
.parada strong { display: block; font-size: 1.2rem; }
.parada small { color: var(--suave); font-size: 0.95rem; }
.punto {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 3px solid var(--borde);
  background: var(--superficie);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.parada.aqui .punto { border-color: var(--ida); background: color-mix(in srgb, var(--ida) 15%, var(--superficie)); }
.parada.vuelta .punto { border-color: var(--vuelta); background: color-mix(in srgb, var(--vuelta) 15%, var(--superficie)); }

.viajero {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  will-change: transform;
  filter: drop-shadow(0 4px 6px rgb(20 22 27 / 0.2));
}

.globo {
  margin-top: 20px;
  padding: 18px;
  border-radius: var(--radio);
  background: var(--superficie);
  border: 2px solid var(--borde);
  font-size: 1.15rem;
  min-height: 96px;
}
.globo:empty { display: none; }
.globo p { margin: 0; }
.globo p + p { margin-top: 8px; }
.globo .bytes {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--ida);
  overflow-wrap: anywhere;
}
.selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 12px 0;
  padding: 4px;
  border-radius: 12px;
  background: var(--fondo);
}
.selector button {
  appearance: none;
  border: 0;
  min-height: 44px;
  border-radius: 9px;
  background: transparent;
  color: var(--suave);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}
.selector button[aria-pressed="true"] { background: var(--superficie); color: var(--ida); box-shadow: 0 1px 3px rgb(20 22 27 / 0.15); }

.bits {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 6px;
  margin-bottom: 12px;
}
.bits.hex { grid-template-columns: repeat(auto-fill, minmax(48px, 1fr)); }
.byte {
  display: grid;
  justify-items: center;
  padding: 6px 2px;
  border-radius: 8px;
  background: var(--fondo);
  animation: aparecer 0.3s ease both;
}
.byte b { font-family: var(--mono); font-size: 1rem; color: var(--ida); letter-spacing: 0.02em; }
.bits.hex .byte b { font-size: 1.15rem; }
.byte small { font-size: 0.75rem; color: var(--suave); }
#btn-seguir { margin-top: 4px; }

.globo .grande { font-size: 2.2rem; font-weight: 800; color: var(--vuelta); line-height: 1.1; }
.globo .chico { color: var(--suave); font-size: 1rem; }
.globo.error { border-color: var(--error); color: var(--error); }
.aparece { animation: aparecer 0.35s ease both; }

#rastreo { margin-top: 24px; }
#rastreo h2 { font-size: 1.3rem; margin-bottom: 12px; }
.etapas { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.etapas li {
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--superficie);
  border: 2px solid var(--borde);
  color: var(--suave);
  font-weight: 700;
  font-size: 1.1rem;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}
.etapas li.listo { background: var(--vuelta); border-color: var(--vuelta); color: #fff; }
.etapas li.recien { transform: scale(1.03); }

#final { margin-top: 24px; display: grid; gap: 16px; }
.moraleja { margin: 0; font-size: 1.15rem; }

/* ================= Proyector ================= */

.pantalla { min-height: 100dvh; }
.pantalla .contenedor {
  max-width: 1600px;
  margin: 0 auto;
  padding: 40px 48px;
  display: grid;
  grid-template-columns: minmax(300px, 28%) 1fr;
  gap: 48px;
  align-items: start;
}

.unete { position: sticky; top: 40px; display: grid; gap: 16px; }
.unete h1 { font-size: clamp(2rem, 3vw, 3rem); line-height: 1.05; }
.qr {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radio);
  background: #fff;
  border: 1px solid var(--borde);
}
.url { margin: 0; font-family: var(--mono); font-size: clamp(1rem, 1.5vw, 1.4rem); font-weight: 700; overflow-wrap: anywhere; }

.escena { display: grid; gap: 32px; }
.escena-titulo { font-size: clamp(1.4rem, 2vw, 2rem); }
.escena-sub { margin: 6px 0 0; color: var(--suave); font-size: clamp(1rem, 1.3vw, 1.25rem); max-width: 60ch; }

.carretera {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radio);
  background: var(--superficie);
  border: 1px solid var(--borde);
}
.ciudad {
  padding: 18px 22px;
  border-radius: 12px;
  border: 2px solid var(--borde);
  text-align: center;
  font-weight: 800;
  font-size: clamp(1.2rem, 1.8vw, 1.8rem);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.ciudad small { display: block; font-weight: 500; font-size: 0.55em; color: var(--suave); }
.ciudad.pulso { border-color: var(--ida); transform: scale(1.04); }
.ciudad.pulso-vuelta { border-color: var(--vuelta); transform: scale(1.04); }
.carril { position: relative; height: 120px; }
.carril::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 3px dashed var(--borde);
}
.ficha {
  position: absolute;
  left: 0;
  top: 50%;
  margin-top: -20px;
  height: 40px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  padding: 0 14px;
  border-radius: 999px;
  color: #fff;
  font-weight: 700;
  font-size: clamp(0.95rem, 1.2vw, 1.15rem);
  background: var(--ida);
  will-change: transform;
}
.ficha.vuelta { background: var(--vuelta); }

.cifras { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cifra { padding: 20px 24px; border-radius: var(--radio); background: var(--superficie); border: 1px solid var(--borde); }
.cifra span { display: block; font-size: clamp(2.4rem, 4vw, 4rem); font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums; }
.cifra small { color: var(--suave); font-size: clamp(0.95rem, 1.2vw, 1.15rem); }

.feed { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.feed li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 20px;
  border-radius: 12px;
  background: var(--superficie);
  border: 1px solid var(--borde);
  font-size: clamp(1rem, 1.4vw, 1.3rem);
  animation: aparecer 0.4s ease both;
}
.feed .icono { font-size: 1.6em; }
.feed .meta { font-family: var(--mono); color: var(--suave); font-size: 0.85em; text-align: right; }
.feed .entregado { color: var(--vuelta); font-weight: 700; }
.feed .vacio { grid-template-columns: 1fr; color: var(--suave); }

@keyframes aparecer {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 960px) {
  .pantalla .contenedor { grid-template-columns: 1fr; padding: 24px; }
  .unete { position: static; max-width: 360px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}