:root {
  color-scheme: light;
  --safe-top: env(safe-area-inset-top, 0rem);
  --safe-right: env(safe-area-inset-right, 0rem);
  --safe-bottom: env(safe-area-inset-bottom, 0rem);
  --safe-left: env(safe-area-inset-left, 0rem);
  --ink: #342d36;
  --paper: #fff9f5;
  --accent: #a85c6b;
}

* { box-sizing: border-box; }

html, body { min-block-size: 100%; }

body {
  margin: 0;
  min-inline-size: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Noto Serif SC", serif;
}

.app {
  position: relative;
  min-block-size: 100vh;
  min-block-size: 100svh;
  min-block-size: 100dvh;
}

.stage {
  position: relative;
  display: grid;
  min-block-size: inherit;
  overflow: clip;
  background: #111;
  color: white;
  isolation: isolate;
}

/* Restrained optical texture keeps the stage filmic without becoming a veil over
   the story. Both overlays are deliberately non-interactive. */
.stage::before,
.stage::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  pointer-events: none;
  content: "";
}

.stage::before {
  opacity: 0.16;
  background-image:
    radial-gradient(circle at 18% 22%, rgb(255 255 255 / 22%) 0 0.04rem, transparent 0.06rem),
    radial-gradient(circle at 74% 68%, rgb(255 255 255 / 16%) 0 0.035rem, transparent 0.06rem),
    repeating-linear-gradient(97deg, transparent 0 14rem, rgb(255 255 255 / 7%) 14rem 14.06rem, transparent 14.06rem 24rem);
  background-size: 8rem 8rem, 11rem 11rem, auto;
  mix-blend-mode: screen;
}

.stage::after {
  opacity: 0.42;
  background:
    linear-gradient(116deg, transparent 0 64%, rgb(255 185 140 / 15%) 75%, transparent 88%),
    linear-gradient(78deg, transparent 0 16%, rgb(197 96 126 / 10%) 29%, transparent 42%),
    repeating-linear-gradient(90deg, transparent 0 23rem, rgb(255 255 255 / 13%) 23rem 23.06rem, transparent 23.06rem 31rem);
  animation: film-leak 13s ease-in-out infinite alternate;
}

.stage.is-sample::before {
  opacity: 0.12;
  background-image:
    radial-gradient(circle at 18% 22%, rgb(255 255 255 / 55%) 0 0.04rem, transparent 0.06rem),
    radial-gradient(circle at 74% 68%, rgb(255 255 255 / 40%) 0 0.035rem, transparent 0.06rem);
  background-size: 8rem 8rem, 11rem 11rem;
  mix-blend-mode: difference;
}

.stage.is-sample::after {
  opacity: 0.16;
  background: repeating-linear-gradient(90deg, transparent 0 23rem, #fff 23rem 23.03rem, transparent 23.03rem 31rem);
  mix-blend-mode: difference;
}

.stage[data-performance="low"]::before { opacity: 0.07; background-size: 12rem 12rem; }
.stage[data-performance="low"]::after { opacity: 0.2; animation: none; }

.stage[hidden] { display: none; }
.cover[hidden] { display: none; }

.stage__layer {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity var(--scene-transition, 240ms) cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
  background: #05070d;
  isolation: isolate;
}

.stage__layer::before {
  position: absolute;
  z-index: -1;
  inset: -10%;
  background-image:
    radial-gradient(ellipse at center, transparent 20%, rgb(1 3 8 / 52%) 86%),
    linear-gradient(rgb(2 5 13 / 45%), rgb(2 5 13 / 62%)),
    var(--photo-image);
  background-position: center;
  background-size: cover;
  content: "";
  filter: blur(clamp(0.9rem, 3vw, 1.8rem)) saturate(0.76) brightness(0.72);
  transform: scale(1.12);
  will-change: transform;
}

.stage__layer::after {
  position: absolute;
  z-index: 0;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 50%, transparent 45%, rgb(0 0 0 / 34%) 100%),
    repeating-linear-gradient(90deg, transparent 0 17rem, rgb(255 240 211 / 9%) 17rem 17.04rem, transparent 17.04rem 25rem);
  content: "";
  pointer-events: none;
}

.stage__layer picture {
  position: relative;
  z-index: 1;
  min-inline-size: 0;
  min-block-size: 0;
  filter: drop-shadow(0 0.7rem 1.7rem rgb(0 0 0 / 48%));
}

.stage__layer[hidden],
.stage__layer img[hidden] { display: none; }

.stage__layer img {
  transform-origin: 50% 50%;
  will-change: opacity;
}

.stage[data-scene-motion="push-in"] .stage__layer.is-active::before {
  transform: scale(calc(1 + (var(--scene-motion-scale) - 1) * var(--scene-progress)));
}

.stage[data-scene-motion="pan-left"] .stage__layer.is-active::before,
.stage[data-scene-motion="pan-right"] .stage__layer.is-active::before {
  transform: translate3d(calc(var(--scene-motion-pan) * var(--scene-progress)), 0, 0) scale(1.04);
}

.stage[data-scene-motion="dissolve"] .stage__layer.is-active {
  opacity: calc(var(--scene-motion-dissolve) + (1 - var(--scene-motion-dissolve)) * var(--scene-entry-progress));
  transition: none;
}

.stage__layer.is-active { opacity: 1; z-index: 1; }
.stage.is-drop-black { background: #000; }
.stage.is-drop-black::before,
.stage.is-drop-black::after { display: none; }
.stage.is-drop-black .stage__layer { visibility: hidden; }
.stage.is-no-photo { background: #000; }
.stage__layer picture, .stage__layer img { inline-size: 100%; block-size: 100%; }
.stage__layer img { display: block; }

.stage__text {
  position: absolute;
  z-index: 3;
  inset-inline: 1.25rem;
  inset-block-start: var(--stage-text-position, 50%);
  margin: 0;
  color: white;
  font-size: clamp(1.25rem, 4vw, 2.5rem);
  line-height: 1.5;
  white-space: pre-line;
  text-align: center;
  text-shadow: 0 0.1em 0.4em rgb(0 0 0 / 70%);
  transform: translateY(-50%);
}

.stage[data-text-zone="none"] .stage__text, .stage[data-scene-kind="drop"] .stage__text { display: none; }

.stage.is-sample .stage__text {
  inset-inline-start: 50%;
  inset-inline-end: auto;
  inline-size: max-content;
  max-inline-size: calc(100% - 2.5rem);
  padding: 0.35em 0.65em;
  background: #000;
  color: #fff;
  overflow-wrap: anywhere;
  text-shadow: none;
  transform: translate(-50%, -50%);
}

.stage[data-sample-tone="white"] .stage__text {
  background: #fff;
  color: #000;
  text-shadow: none;
}

.stage__cue {
  position: absolute;
  z-index: 4;
  inset-block-start: max(0.8rem, calc(var(--safe-top) + 0.5rem));
  inset-inline-end: max(0.8rem, calc(var(--safe-right) + 0.5rem));
  margin: 0;
  padding: 0.45em 0.7em;
  border: 0.08em solid currentColor;
  background: #000;
  color: #fff;
  font: 650 clamp(0.62rem, 1.8vw, 0.78rem)/1.1 ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  pointer-events: none;
}

.stage[data-sample-tone="white"] .stage__cue {
  background: #fff;
  color: #000;
}

.stage__cue[hidden] { display: none; }

.stage__ornaments {
  position: absolute;
  z-index: 2;
  inset-inline: 0;
  inset-block-start: 0;
  block-size: 42%;
  overflow: hidden;
  pointer-events: none;
  opacity: 0.9;
}

.stage__ornaments[hidden] { display: none; }

.stage__stars,
.stage__dust {
  position: absolute;
  inset: 0;
  display: block;
  pointer-events: none;
}

.stage.is-sample .stage__ornaments {
  filter: grayscale(1) contrast(2);
  mix-blend-mode: difference;
}

.stage__stars {
  background:
    linear-gradient(155deg, transparent 0 33%, rgb(255 236 206 / 35%) 33.2% 33.32%, transparent 33.5% 100%),
    linear-gradient(155deg, transparent 0 58%, rgb(255 245 220 / 24%) 58.2% 58.3%, transparent 58.5% 100%),
    radial-gradient(circle at 21% 32%, rgb(255 251 229 / 70%) 0 0.08rem, transparent 0.12rem),
    radial-gradient(circle at 77% 24%, rgb(255 251 229 / 58%) 0 0.06rem, transparent 0.11rem);
  background-size: 100% 100%, 100% 100%, 13rem 9rem, 17rem 13rem;
  animation: star-drift 18s linear infinite;
}

.stage__dust {
  opacity: 0.68;
  background-image: radial-gradient(circle, rgb(255 240 204 / 55%) 0 0.06rem, transparent 0.1rem);
  background-size: 7rem 6rem;
  animation: dust-float 11s ease-in-out infinite alternate;
}

.stage[data-performance="low"] .stage__ornaments { opacity: 0.45; }
.stage[data-performance="low"] .stage__stars,
.stage[data-performance="low"] .stage__dust { animation: none; }

.cover {
  position: relative;
  display: grid;
  grid-template-areas: "cover";
  min-block-size: inherit;
  overflow: clip;
  padding: max(1.5rem, var(--safe-top)) max(1.25rem, var(--safe-right)) max(1.5rem, var(--safe-bottom)) max(1.25rem, var(--safe-left));
  background: linear-gradient(145deg, #fffaf6 0%, #fbe6e0 52%, #ead4d6 100%);
}

.cover__content {
  grid-area: cover;
  display: flex;
  inline-size: min(100%, 42rem);
  min-inline-size: 0;
  margin: auto;
  padding-block: clamp(2rem, 8vh, 6rem);
  align-items: center;
  text-align: center;
  flex-direction: column;
  justify-content: center;
  gap: clamp(0.8rem, 2.4vh, 1.5rem);
}

.eyebrow, .subtitle, .audio-hint { margin: 0; }

.eyebrow {
  color: color-mix(in srgb, var(--accent), var(--ink) 22%);
  font-family: system-ui, sans-serif;
  font-size: clamp(0.7rem, 1.7vw, 0.875rem);
  font-weight: 700;
  letter-spacing: 0.16em;
}

.title {
  max-inline-size: 100%;
  margin: 0;
  font-size: clamp(3rem, 13vw, 7.5rem);
  font-weight: 500;
  line-height: 0.95;
  overflow-wrap: anywhere;
}

.subtitle { font-size: clamp(1rem, 2.5vw, 1.25rem); }

.start-button {
  min-inline-size: min(100%, 12rem);
  min-block-size: 2.75rem;
  padding: 0.65rem 1.4rem;
  border: 0.0625rem solid color-mix(in srgb, var(--accent), black 12%);
  border-radius: 999rem;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font: 600 1rem/1.2 system-ui, sans-serif;
}

.start-button:focus-visible {
  outline: 0.1875rem solid #7a4d0b;
  outline-offset: 0.2rem;
  box-shadow: 0 0 0 0.375rem #fff8e8;
}
.audio-hint { min-block-size: 1.5em; font-family: system-ui, sans-serif; font-size: 0.9rem; }

.cover__decoration {
  grid-area: cover;
  position: relative;
  z-index: 0;
  inline-size: min(68vw, 36rem);
  aspect-ratio: 1;
  justify-self: center;
  align-self: center;
  border: 0.0625rem solid rgb(168 92 107 / 18%);
  border-radius: 50%;
  pointer-events: none;
}

.cover__content { z-index: 1; }
.photo-layer { inline-size: 100%; block-size: 100%; object-fit: contain; }

.controls {
  position: fixed;
  inset-inline: 0;
  inset-block-end: max(0.8rem, var(--safe-bottom));
  z-index: 3;
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  inline-size: min(100%, 34rem);
  padding-block: 0.8rem;
}

.controls[hidden] { display: none; }

.controls button {
  min-block-size: 2.75rem;
  min-inline-size: 5.5rem;
  padding: 0.55rem 0.9rem;
  border: 0.0625rem solid color-mix(in srgb, var(--accent), black 12%);
  border-radius: 999rem;
  background: rgb(255 255 255 / 82%);
  color: var(--ink);
  cursor: pointer;
  font: 600 0.9rem/1.2 system-ui, sans-serif;
}

.controls button:focus-visible {
  outline: 0.1875rem solid #7a4d0b;
  outline-offset: 0.2rem;
}

@media (orientation: landscape) and (max-block-size: 34rem) {
  .cover__content { padding-block: 1.25rem; gap: 0.55rem; }
  .title { font-size: clamp(2.75rem, 9vw, 5rem); }
  .cover__decoration { inline-size: min(40vw, 20rem); }
}

@media (orientation: landscape) and (max-height: 34rem) {
  .stage[data-text-zone="bottom"] .stage__text { inset-block-start: 68%; }
  .stage[data-text-zone="top"] .stage__cue {
    inset-block-start: auto;
    inset-block-end: max(5.5rem, calc(var(--safe-bottom) + 5rem));
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; }
  .stage__ornaments { display: none !important; }
  .stage[data-scene-motion="push-in"] .stage__layer.is-active::before,
  .stage[data-scene-motion="pan-left"] .stage__layer.is-active::before,
  .stage[data-scene-motion="pan-right"] .stage__layer.is-active::before { transform: scale(1.12) !important; }
  .stage[data-scene-motion="dissolve"] .stage__layer.is-active { opacity: 1; transition: opacity 140ms ease !important; }
}

@keyframes film-leak { from { background-position: 0 0, 0 0, 0 0; } to { background-position: 0 0, 0 0, 3rem 0; } }
@keyframes star-drift { from { transform: translateX(-1%); } to { transform: translateX(1%); } }
@keyframes dust-float { from { opacity: 0.3; transform: translateY(0); } to { opacity: 0.8; transform: translateY(2%); } }