/* ==========================================================================
   Memorias que Viven QR — la experiencia
   Pantalla completa, mobile-first. Todo el cromo es hilo fino: el contenido
   de la familia es el único protagonista.
   ========================================================================== */

html, body {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--tinta-honda);
}

body.exp {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* --- Escenario ---------------------------------------------------------- */

.escenario {
  position: fixed;
  inset: 0;
  height: 100dvh;
  background: var(--tinta-honda);
  isolation: isolate;
}

.pista { position: absolute; inset: 0; }

.escena {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1000ms var(--curva-suave), visibility 0s linear 1000ms;
  will-change: opacity;
}
.escena.viva {
  opacity: 1;
  visibility: visible;
  transition: opacity 1000ms var(--curva-suave), visibility 0s;
}

/* Respaldo desenfocado: nunca recortamos una cara para llenar la pantalla.
   El medio va "contain" y detrás queda una copia difuminada del mismo cuadro. */
.escena__respaldo {
  position: absolute;
  inset: -8%;
  width: 116%;
  height: 116%;
  object-fit: cover;
  filter: blur(46px) saturate(0.85) brightness(0.42);
  transform: scale(1.06);
  pointer-events: none;
}

.escena__marco {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.escena__medio {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: center;
  backface-visibility: hidden;
}

/* Movimiento de cámara lento (Ken Burns). La duración la fija el JS. */
.escena.viva .escena__medio[data-mov="acercar"]  { animation: kb-acercar var(--mov-dur, 8s) linear forwards; }
.escena.viva .escena__medio[data-mov="alejar"]   { animation: kb-alejar  var(--mov-dur, 8s) linear forwards; }
.escena.viva .escena__medio[data-mov="derecha"]  { animation: kb-derecha var(--mov-dur, 8s) linear forwards; }
.escena.viva .escena__medio[data-mov="izquierda"]{ animation: kb-izq     var(--mov-dur, 8s) linear forwards; }

@keyframes kb-acercar  { from { transform: scale(1.00); } to { transform: scale(1.11); } }
@keyframes kb-alejar   { from { transform: scale(1.12); } to { transform: scale(1.01); } }
@keyframes kb-derecha  { from { transform: scale(1.10) translateX(-2.2%); } to { transform: scale(1.10) translateX(2.2%); } }
@keyframes kb-izq      { from { transform: scale(1.10) translateX(2.2%); }  to { transform: scale(1.10) translateX(-2.2%); } }

@media (prefers-reduced-motion: reduce) {
  .escena__medio { animation: none !important; transform: none !important; }
}

/* Velo inferior para que el texto siempre se lea, incluso sobre foto clara */
.escena__velo {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to top, rgba(11,12,17,0.82) 0%, rgba(11,12,17,0.34) 26%, transparent 52%),
    linear-gradient(to bottom, rgba(11,12,17,0.55) 0%, transparent 24%);
}

/* --- Pie de escena: nombre del momento --------------------------------- */

.escena__pie {
  position: absolute;
  left: 0; right: 0;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 4.5rem);
  padding: 0 var(--r3);
  text-align: center;
}

.escena__titulo {
  font-family: var(--display);
  font-variation-settings: "opsz" 72, "SOFT" 60, "WONK" 0;
  font-weight: 300;
  font-size: clamp(1.5rem, 6.2vw, 2.25rem);
  line-height: 1.14;
  margin: 0;
  opacity: 0;
  transform: translateY(14px);
}
.escena__nota {
  font-size: 0.875rem;
  color: rgba(239, 233, 222, 0.66);
  letter-spacing: 0.03em;
  margin-top: 0.55rem;
  opacity: 0;
  transform: translateY(14px);
}
.escena.viva .escena__titulo { animation: subir 1200ms var(--curva) 420ms forwards; }
.escena.viva .escena__nota   { animation: subir 1200ms var(--curva) 640ms forwards; }

@keyframes subir { to { opacity: 1; transform: translateY(0); } }

/* --- Escena de texto: la frase sobre el recuerdo difuminado ------------- */

.escena--texto .escena__marco { padding: var(--r4) var(--r3); }
.frase, .voz { position: relative; z-index: 2; }
.escena--texto .escena__medio {
  filter: blur(16px) brightness(0.62) saturate(0.85);
  transform: scale(1.14);
  object-fit: cover;
}
.escena--texto .escena__velo {
  background: radial-gradient(ellipse at center, rgba(11,12,17,0.30) 0%, rgba(11,12,17,0.80) 78%);
}

.frase {
  position: relative;
  max-width: 22ch;
  margin: 0 auto;
  text-align: center;
  font-family: var(--display);
  font-variation-settings: "opsz" 108, "SOFT" 70, "WONK" 1;
  font-weight: 300;
  font-size: clamp(1.75rem, 7.4vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(20px);
}
.escena.viva .frase { animation: subir 1500ms var(--curva) 380ms forwards; }

.frase__firma {
  display: block;
  margin-top: var(--r3);
  font-family: var(--texto);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--laton);
  opacity: 0;
}
.escena.viva .frase__firma { animation: subir 1200ms var(--curva) 900ms forwards; }

/* --- Escena de audio: la voz que quedó --------------------------------- */

.escena--audio .escena__medio { filter: brightness(0.66) saturate(0.95); object-fit: cover; }

.voz {
  position: relative;
  text-align: center;
  padding: 0 var(--r3);
}
.voz__anillo {
  width: 92px; height: 92px;
  margin: 0 auto var(--r3);
  border-radius: 50%;
  border: 1px solid var(--laton);
  display: grid;
  place-items: center;
  position: relative;
}
.voz__anillo::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid var(--laton);
  opacity: 0;
}
.escena.viva .voz__anillo::after { animation: pulso 3.2s ease-out infinite; }
@keyframes pulso {
  0%   { transform: scale(1);    opacity: 0.55; }
  100% { transform: scale(1.75); opacity: 0; }
}

.voz__ondas { display: flex; gap: 4px; align-items: center; height: 30px; }
.voz__ondas i {
  display: block;
  width: 3px;
  border-radius: 2px;
  background: var(--laton-claro);
  height: 9px;
}
.escena.viva .voz__ondas i { animation: onda 1.15s ease-in-out infinite; }
.voz__ondas i:nth-child(2) { animation-delay: 0.14s; }
.voz__ondas i:nth-child(3) { animation-delay: 0.28s; }
.voz__ondas i:nth-child(4) { animation-delay: 0.42s; }
.voz__ondas i:nth-child(5) { animation-delay: 0.20s; }
@keyframes onda { 0%,100% { height: 8px; } 50% { height: 27px; } }

.voz__etiqueta {
  font-family: var(--display);
  font-variation-settings: "opsz" 60, "SOFT" 60;
  font-weight: 300;
  font-size: clamp(1.25rem, 5.4vw, 1.75rem);
}
.voz__meta { font-size: 0.8125rem; color: var(--tenue); margin-top: 0.4rem; }

/* --- Barra de progreso: un tramo por escena ---------------------------- */

.progreso {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 0.75rem);
  left: var(--r2);
  right: var(--r2);
  display: flex;
  gap: 4px;
  z-index: 20;
  pointer-events: none;
}
.progreso__tramo {
  flex: 1;
  height: 2px;
  background: rgba(239, 233, 222, 0.2);
  border-radius: 2px;
  overflow: hidden;
}
.progreso__relleno {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--laton-claro);
  transform: scaleX(0);
  transform-origin: left;
}

/* --- Encabezado flotante ------------------------------------------------ */

.exp-cabecera {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 1.75rem);
  left: var(--r3);
  right: var(--r3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--r2);
  z-index: 20;
}

.exp-cabecera__nombre {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(239, 233, 222, 0.72);
  text-shadow: 0 1px 12px rgba(0,0,0,0.6);
  pointer-events: none;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tecla {
  flex: none;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--linea-fuerte);
  border-radius: 50%;
  background: rgba(11,12,17,0.42);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--hueso);
  cursor: pointer;
  z-index: 21;
  transition: border-color 220ms, background 220ms;
}
.tecla:hover { border-color: var(--laton); background: rgba(11,12,17,0.68); }
.tecla svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.tecla [data-si] { display: none; }
.tecla.mudo [data-si] { display: block; }
.tecla.mudo [data-no] { display: none; }

/* --- Zonas táctiles ----------------------------------------------------- */

.toques { position: absolute; inset: 0; z-index: 10; display: flex; }
.toques button {
  border: 0; background: transparent; padding: 0; margin: 0;
  cursor: pointer; color: transparent; font-size: 0;
}
.toques__atras    { flex: 0 0 30%; }
.toques__adelante { flex: 1 1 auto; }

/* Aviso de pausa */
.pausa-aviso {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 15;
  opacity: 0;
  pointer-events: none;
  transition: opacity 260ms;
}
.escenario.en-pausa .pausa-aviso { opacity: 1; }
.pausa-aviso span {
  display: flex; gap: 6px;
}
.pausa-aviso i {
  display: block; width: 5px; height: 34px;
  background: rgba(239,233,222,0.85);
  border-radius: 2px;
}

/* --- Pista de uso (una sola vez) ---------------------------------------- */

.pista-uso {
  position: absolute;
  left: 0; right: 0;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 1.5rem);
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(239,233,222,0.6);
  z-index: 18;
  pointer-events: none;
  animation: pista-uso 5s var(--curva) 1.2s forwards;
  opacity: 0;
}
@keyframes pista-uso {
  0% { opacity: 0; } 14% { opacity: 1; } 74% { opacity: 1; } 100% { opacity: 0; }
}

/* --- Umbral: la portada con "tocar para comenzar" ----------------------- */

.umbral {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--r4) var(--r3);
  background: var(--tinta-honda);
  transition: opacity 900ms var(--curva-suave);
}
.umbral.yendo { opacity: 0; pointer-events: none; }

.umbral__fondo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.66) saturate(0.92);
  transform: scale(1.06);
  animation: umbral-vive 22s ease-out forwards;
}
@keyframes umbral-vive { to { transform: scale(1.16); } }

.umbral::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 46%, rgba(11,12,17,0.18) 0%, rgba(11,12,17,0.86) 76%);
}

.umbral__cuerpo { position: relative; z-index: 2; max-width: 30rem; }

.umbral__nombre {
  font-family: var(--display);
  font-variation-settings: "opsz" 144, "SOFT" 60, "WONK" 1;
  font-weight: 200;
  font-size: clamp(2.5rem, 11vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
}
.umbral__apodo {
  display: block;
  font-family: var(--display);
  font-variation-settings: "opsz" 40, "SOFT" 80, "WONK" 1;
  font-style: italic;
  font-size: clamp(1rem, 4.2vw, 1.25rem);
  color: var(--laton-claro);
  margin-top: 0.6rem;
  letter-spacing: 0.01em;
}
.umbral__fechas {
  margin-top: var(--r3);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  color: rgba(239,233,222,0.62);
  font-variant-numeric: tabular-nums;
}
.umbral__lugar {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--tenue);
}

/* Un hilo de latón entre el nombre y el botón: es la placa */
.umbral__hilo {
  width: 1px; height: var(--r5);
  margin: var(--r4) auto var(--r3);
  background: linear-gradient(to bottom, transparent, var(--laton), transparent);
}

.comenzar {
  appearance: none;
  border: 1px solid var(--laton);
  background: transparent;
  color: var(--hueso);
  font-family: var(--texto);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 1.15rem 2.4rem;
  border-radius: 999px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color 320ms, border-color 320ms;
}
.comenzar::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--laton);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 480ms var(--curva);
  z-index: -1;
}
.comenzar:hover { color: var(--tinta-honda); border-color: var(--laton-claro); }
.comenzar:hover::before { transform: scaleX(1); }
.comenzar span { position: relative; z-index: 1; }

.umbral__susurro {
  margin-top: var(--r3);
  font-size: 0.75rem;
  color: var(--tenue-honda);
  letter-spacing: 0.05em;
}

/* --- Cierre ------------------------------------------------------------- */

.cierre {
  position: fixed;
  inset: 0;
  z-index: 35;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--r4) var(--r3);
  background: var(--tinta-honda);
  opacity: 0;
  visibility: hidden;
  transition: opacity 1100ms var(--curva-suave), visibility 0s linear 1100ms;
}
.cierre.viva { opacity: 1; visibility: visible; transition: opacity 1100ms var(--curva-suave), visibility 0s; }

.cierre__cuerpo { max-width: 26rem; width: 100%; }

.cierre__frase {
  font-family: var(--display);
  font-variation-settings: "opsz" 120, "SOFT" 70, "WONK" 1;
  font-weight: 200;
  font-size: clamp(1.75rem, 7.6vw, 2.75rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(18px);
}
.cierre.viva .cierre__frase { animation: subir 1400ms var(--curva) 300ms forwards; }

.cierre__firma {
  margin-top: var(--r3);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--laton);
  opacity: 0;
}
.cierre.viva .cierre__firma { animation: subir 1200ms var(--curva) 900ms forwards; }

.cierre__acciones {
  margin-top: var(--r5);
  display: flex;
  flex-direction: column;
  gap: var(--r1);
  opacity: 0;
}
.cierre.viva .cierre__acciones { animation: subir 1000ms var(--curva) 1300ms forwards; }

.accion {
  appearance: none;
  display: block;
  width: 100%;
  border: 1px solid var(--linea);
  background: transparent;
  color: var(--hueso);
  font-family: var(--texto);
  font-size: 0.9375rem;
  padding: 1rem 1.25rem;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 260ms, background 260ms;
}
.accion:hover { border-color: var(--laton); background: rgba(195,160,92,0.08); }
.accion--principal { border-color: var(--laton); color: var(--laton-claro); }

.cierre__pie {
  display: block;
  margin-top: var(--r4);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tenue-honda);
  text-decoration: none;
}
.cierre__pie strong { color: var(--tenue); font-weight: 600; }

/* --- Carga -------------------------------------------------------------- */

.cargando {
  position: fixed; inset: 0; z-index: 50;
  display: grid; place-items: center;
  background: var(--tinta-honda);
  transition: opacity 600ms;
}
.cargando.yendo { opacity: 0; pointer-events: none; }
.cargando__marca {
  font-family: var(--display);
  font-variation-settings: "opsz" 40, "SOFT" 60;
  font-weight: 300;
  font-size: 0.9375rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--laton-honda);
  animation: latir 2.4s ease-in-out infinite;
}
@keyframes latir { 0%,100% { opacity: 0.35; } 50% { opacity: 0.9; } }

/* Aviso de error: dice qué pasó y qué hacer, sin disculpas */
.aviso {
  position: fixed; inset: 0; z-index: 60;
  display: grid; place-items: center;
  padding: var(--r4);
  text-align: center;
  background: var(--tinta-honda);
}
.aviso h2 { font-size: 1.5rem; font-variation-settings: "opsz" 60, "SOFT" 60; margin-bottom: var(--r2); }
.aviso p { color: var(--tenue); font-size: 0.9375rem; max-width: 26rem; }
.aviso .accion { margin-top: var(--r3); max-width: 18rem; }

/* En pantallas anchas encuadramos la experiencia como un teléfono */
@media (min-width: 900px) and (min-aspect-ratio: 1/1) {
  .escenario, .umbral, .cierre { }
}