:root {
  --bg: #0a0a0c;
  --bg-2: #121116;
  --ink: #f3f0ea;
  --ink-soft: #cdc9d1;
  --muted: #8d8996;
  --line: #24222a;
  --line-2: #322f3a;
  --accent: #e6318f;
  --amber: #e8c74a;
  --display: "Anton", "Arial Narrow", sans-serif;
  --body: "Spectral", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

body.entrada-abierta { overflow: hidden; }

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 2px; }

/* HUD + progreso */
.hud {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.9rem clamp(1rem, 4vw, 2.4rem) 0.7rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--muted);
  pointer-events: none;
  background: linear-gradient(rgba(10, 10, 12, 0.85), transparent);
}
.hud__now { color: var(--accent); font-weight: 500; letter-spacing: 0.16em; }
.hud__now.flip { animation: flipIn 0.55s var(--ease); }
@keyframes flipIn {
  from { opacity: 0; transform: translateY(-8px); filter: blur(3px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 51;
  background: rgba(255, 255, 255, 0.06);
}
.progress__bar {
  height: 100%;
  width: 100%;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: var(--accent);
}

/* Portada */
.cover {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.cover__bg {
  position: absolute;
  inset: 0;
  background-color: #050506;
  background-size: cover;
  background-position: center bottom;
  opacity: 0.3;
  filter: grayscale(0.15) contrast(1.05);
  animation: kenburns 26s ease-in-out infinite alternate;
}
@keyframes kenburns {
  from { transform: scale(1); }
  to { transform: scale(1.1); }
}
.cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 10, 12, 0.72), rgba(10, 10, 12, 0.15) 42%, var(--bg) 98%);
}
.cover__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 78rem;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 6vw, 5rem) clamp(3rem, 12vh, 8rem);
}
.cover__inner > * {
  opacity: 0;
  transform: translateY(26px);
  animation: rise 0.95s var(--ease) forwards;
}
.kicker { animation-delay: 0.15s; }
.cover__title { animation-delay: 0.3s; }
.cover__deck { animation-delay: 0.55s; }
.cover__cue { animation-delay: 0.75s; }
@keyframes rise {
  to { opacity: 1; transform: none; }
}

.kicker {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.6rem;
}
.cover__title {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(2.9rem, 11vw, 9.5rem);
  line-height: 0.86;
  letter-spacing: -0.01em;
  margin: 0;
}
.cover__deck {
  max-width: 40rem;
  margin: 1.8rem 0 0;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
  color: var(--ink-soft);
}
.cover__deck em { color: var(--ink); font-style: italic; }
.cover__cue {
  margin: 2.6rem 0 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}
.cover__cue span { color: var(--accent); display: inline-block; animation: nudge 1.8s ease-in-out infinite; }
@keyframes nudge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* Intro (bajada) */
.intro {
  max-width: 46rem;
  margin: 0 auto;
  padding: clamp(4rem, 14vh, 11rem) clamp(1.25rem, 6vw, 4rem) clamp(2rem, 8vh, 6rem);
}
.intro__title {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(1.5rem, 3.6vw, 2.6rem);
  line-height: 1;
  margin: 0 0 2rem;
}
.intro__title::before {
  content: "";
  display: block;
  width: 3.5rem;
  height: 2px;
  background: var(--accent);
  margin-bottom: 1.8rem;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s var(--ease) 0.15s;
}
.intro.visible .intro__title::before { transform: scaleX(1); }
.intro .relato { color: var(--ink-soft); font-size: 1.1rem; }

/* Escenas (scrollytelling) */
.scene {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: start;
  border-top: 1px solid var(--line);
}
.scene--flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

.scene__text {
  grid-column: 1;
  grid-row: 1;
  min-height: 140vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 9vh, 8rem) clamp(1.5rem, 5vw, 4.5rem);
}
.scene--flip .scene__text { grid-column: 2; }

.scene__text > :not(.relato) {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.95s var(--ease), transform 0.95s var(--ease);
}
.scene.visible .scene__text > :not(.relato) { opacity: 1; transform: none; }

.scene__meta {
  display: block;
  margin: 0 0 0.5rem;
  transition-delay: 0.06s;
}
.scene__discurso { transition-delay: 0.14s; }
.scene__title { transition-delay: 0.22s; }

.scene .relato p {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.scene.visible .relato p { opacity: 1; transform: none; }
.scene.visible .relato p:nth-child(1) { transition-delay: 0.38s; }
.scene.visible .relato p:nth-child(2) { transition-delay: 0.5s; }
.scene.visible .relato p:nth-child(3) { transition-delay: 0.62s; }
.scene.visible .relato p:nth-child(4) { transition-delay: 0.74s; }

.scene__hora {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.8rem, 8vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: normal;
}
.scene__hora.vacia { display: none; }
.scene__src {
  display: block;
  margin-top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}
.scene__src:hover { color: var(--accent); }

.scene__title {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(1.6rem, 3.4vw, 3rem);
  line-height: 0.98;
  margin: 0 0 1.8rem;
  color: var(--ink);
}
.scene__title::after {
  content: "";
  display: block;
  width: 3.5rem;
  height: 2px;
  background: var(--accent);
  margin-top: 1.6rem;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s var(--ease) 0.35s;
}
.scene.visible .scene__title::after { transform: scaleX(1); }

.relato { max-width: 44ch; }
.relato p {
  margin: 0 0 1.15rem;
  white-space: pre-line;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.15vw, 1.15rem);
  line-height: 1.75;
}
.relato p:last-child { margin-bottom: 0; }

.scene__discurso {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.3rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}
.scene__discurso[hidden] { display: none; }
.scene__discurso::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--amber);
}
body.sonido-on .scene__discurso::before { animation: pulse 1.7s ease-out infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(232, 199, 74, 0.5); }
  70% { box-shadow: 0 0 0 0.6rem rgba(232, 199, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(232, 199, 74, 0); }
}

.scene__media {
  grid-column: 2;
  grid-row: 1;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 5vw, 5rem);
  background: radial-gradient(58% 58% at 50% 50%, #141218, var(--bg) 100%);
}
.scene--flip .scene__media { grid-column: 1; }

.media {
  margin: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(22px) scale(0.97);
  transition: opacity 1.1s ease, transform 1.4s var(--ease);
}
.scene.visible .media { opacity: 1; transform: none; }
.media img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 82vh;
  margin: 0 auto;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: #050506;
}

/* Cierre */
.closing {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  border-top: 1px solid var(--line);
}
.closing__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  filter: grayscale(0.2);
}
.closing::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(75% 75% at 50% 50%, rgba(10, 10, 12, 0.45), var(--bg));
}
.closing__inner {
  position: relative;
  z-index: 2;
  max-width: 44rem;
  padding: clamp(3rem, 12vh, 8rem) clamp(1.25rem, 6vw, 3rem);
}
.closing__title {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(1.8rem, 5vw, 3.6rem);
  line-height: 1;
  margin: 0 0 2rem;
  color: var(--ink);
}
.closing__inner .relato { margin: 0 auto; max-width: 40ch; }
.closing .relato p { text-align: center; }

/* Aviso */
.aviso {
  max-width: 46rem;
  margin: 2rem auto;
  padding: 1rem 1.4rem;
  border: 1px solid var(--accent);
  background: rgba(230, 49, 143, 0.08);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* Pie */
.pie {
  border-top: 1px solid var(--line);
  padding: 2.6rem clamp(1.25rem, 6vw, 4rem) 5rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.pie p { max-width: 52rem; margin: 0 auto; }
.pie em { color: var(--ink-soft); }

/* Control de sonido */
.yt-oculto {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 1px;
  height: 1px;
  opacity: 0.01;
  z-index: 0;
  pointer-events: none;
}

.sonido {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 55;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(18, 17, 22, 0.85);
  backdrop-filter: blur(10px);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.3s ease, color 0.3s ease, transform 0.3s var(--ease);
}
.sonido:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.sonido[hidden] { display: none; }
.sonido__icono { display: inline-flex; align-items: flex-end; gap: 2px; height: 13px; }
.sonido__icono i {
  display: block;
  width: 2px;
  height: 4px;
  border-radius: 2px;
  background: currentColor;
}
.sonido.is-on .sonido__icono i { animation: eq 0.9s ease-in-out infinite; }
.sonido.is-on .sonido__icono i:nth-child(2) { animation-delay: 0.15s; }
.sonido.is-on .sonido__icono i:nth-child(3) { animation-delay: 0.3s; }
.sonido.is-on .sonido__icono i:nth-child(4) { animation-delay: 0.45s; }
@keyframes eq {
  0%, 100% { height: 4px; }
  50% { height: 13px; }
}

.pista-sonido {
  position: fixed;
  left: 50%;
  bottom: clamp(1rem, 3vw, 2rem);
  transform: translateX(-50%);
  z-index: 55;
  padding: 0.65rem 1.1rem;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(18, 17, 22, 0.85);
  backdrop-filter: blur(10px);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  animation: pistaPulse 2.2s ease-in-out infinite;
}
.pista-sonido:hover,
.pista-sonido:focus-visible { color: var(--accent); border-color: var(--accent); }
@keyframes pistaPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Pantalla de entrada */
.entrada {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 6vw, 4rem);
  background: radial-gradient(70% 70% at 50% 40%, rgba(10, 10, 12, 0.78), rgba(6, 6, 8, 0.95));
  backdrop-filter: blur(14px);
  transition: opacity 0.5s ease;
}
.entrada[hidden] { display: none; }
.entrada--fuera { opacity: 0; pointer-events: none; }
.entrada__caja {
  width: min(100%, 34rem);
  text-align: center;
  animation: rise 0.8s var(--ease) both;
}
.entrada__titulo {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(1.8rem, 5vw, 3rem);
  line-height: 0.98;
  margin: 0 0 1.2rem;
}
.entrada__texto {
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  line-height: 1.6;
  margin: 0 auto 2.2rem;
  max-width: 30rem;
}
.entrada__acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  justify-content: center;
}
.entrada__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.3s var(--ease), background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}
.entrada__btn[hidden] { display: none; }
.entrada__nota[hidden] { display: none; }
.entrada__btn--si {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #0a0a0c;
}
.entrada__btn--si:hover,
.entrada__btn--si:focus-visible { transform: translateY(-2px); }
.entrada__btn--no {
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--ink-soft);
}
.entrada__btn--no:hover,
.entrada__btn--no:focus-visible { border-color: var(--ink-soft); color: var(--ink); transform: translateY(-2px); }
.entrada__btn--si .sonido__icono { height: 12px; }
.entrada__btn--si .sonido__icono i {
  background: currentColor;
  animation: eq 0.9s ease-in-out infinite;
}
.entrada__btn--si .sonido__icono i:nth-child(2) { animation-delay: 0.15s; }
.entrada__btn--si .sonido__icono i:nth-child(3) { animation-delay: 0.3s; }
.entrada__btn--si .sonido__icono i:nth-child(4) { animation-delay: 0.45s; }
.entrada__pasos {
  margin: 1.5rem 0 0;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.entrada__pasos[hidden] { display: none; }
.entrada__sena {
  position: absolute;
  top: clamp(0.7rem, 3vw, 1.4rem);
  right: clamp(0.7rem, 3vw, 1.4rem);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.entrada__sena[hidden] { display: none; }
.entrada__sena-flecha {
  font-size: 1.8rem;
  line-height: 1;
  animation: sena 1.5s ease-in-out infinite;
}
.entrada__sena-txt { color: var(--ink-soft); }
@keyframes sena {
  0%, 100% { transform: translate(0, 0); opacity: 0.7; }
  50% { transform: translate(5px, -5px); opacity: 1; }
}
.entrada__nota {
  margin: 1.6rem 0 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 900px) {
  .scene,
  .scene--flip { grid-template-columns: 1fr; }
  .scene__text,
  .scene--flip .scene__text {
    grid-column: 1;
    grid-row: 2;
    min-height: 0;
    padding: clamp(2.5rem, 8vh, 4rem) clamp(1.25rem, 6vw, 2rem) clamp(3rem, 10vh, 5rem);
  }
  .scene__media,
  .scene--flip .scene__media {
    grid-column: 1;
    grid-row: 1;
    position: static;
    height: auto;
    padding: clamp(2rem, 7vh, 3.5rem) clamp(1.25rem, 6vw, 2rem) 0;
    background: none;
  }
  .media img { max-height: 60vh; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cover__bg { animation: none; }
  .cover__inner > * { opacity: 1; transform: none; animation: none; }
  .cover__cue span { animation: none; }
  .scene__text > :not(.relato),
  .scene .relato p,
  .media {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
  .scene__title::after,
  .intro__title::before { transform: none; transition: none; }
  .hud__now.flip { animation: none; }
  .sonido.is-on .sonido__icono i { animation: none; height: 9px; }
  .pista-sonido { animation: none; }
  .entrada__caja { animation: none; }
  .entrada__btn--si .sonido__icono i { animation: none; height: 9px; }
  .entrada__sena-flecha { animation: none; }
}