:root {
  --ink: #f1ede4;
  --ink-soft: #d8d0c2;
  --gold: #c7a46a;
  --navy: #06080b;
  --scene-opacity: 0;
  --scene-y: 16px;
  --scene-scale: 0.994;
  --bg-a-opacity: 1;
  --bg-b-opacity: 0;
  --bg-scale: 1.035;
  --bg-x: 0%;
  --bg-y: 0%;
  --celestial-opacity: 0.06;
  --celestial-rotation: -4deg;
  --celestial-scale: 0.96;
  --glow-opacity: 0;
  --progress: 0;
}

* { box-sizing: border-box; }

html {
  background: var(--navy);
  color: var(--ink);
  scrollbar-color: rgba(199, 164, 106, 0.48) #06080b;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--navy);
  color: var(--ink);
  font-family: "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

main { position: relative; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body:has(.no-script) main { display: none; }

.no-script {
  position: relative;
  display: grid;
  min-height: 100svh;
  padding: clamp(2rem, 7vw, 7rem);
  align-content: center;
  overflow: hidden;
  background:
    linear-gradient(rgba(3, 6, 10, 0.48), rgba(3, 6, 10, 0.76)),
    url("assets/scene-05.jpg") center / cover no-repeat;
}

.no-script__mark,
.no-script__soon {
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: clamp(0.64rem, 0.8vw, 0.82rem);
  letter-spacing: 0.42em;
}

.no-script h1 {
  max-width: 18ch;
  margin: clamp(4rem, 10vh, 8rem) 0;
  font-size: clamp(2.6rem, 7vw, 7.8rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.052em;
}

.no-script__soon { color: rgba(241, 237, 228, 0.62); }

.story {
  position: relative;
  height: 620svh;
  background: var(--navy);
}

.stage {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  isolation: isolate;
  background: var(--navy);
}

.stage::before,
.stage::after {
  position: absolute;
  z-index: 8;
  content: "";
  pointer-events: none;
}

.stage::before {
  inset: clamp(13px, 1.8vw, 28px);
  border: 1px solid rgba(199, 164, 106, 0.08);
  opacity: calc(0.26 + var(--progress) * 0.28);
}

.stage::after {
  inset: 0;
  background:
    linear-gradient(90deg, rgba(1, 4, 8, 0.38), transparent 18%, transparent 82%, rgba(1, 4, 8, 0.38)),
    linear-gradient(180deg, rgba(1, 4, 8, 0.23), transparent 24%, transparent 76%, rgba(1, 4, 8, 0.5));
}

.backdrop,
.backdrop__slot,
.backdrop__slot img,
.backdrop__veil,
.backdrop__glow,
.backdrop__haze {
  position: absolute;
  inset: 0;
}

.backdrop {
  z-index: -4;
  overflow: hidden;
  background: #05070a;
}

.backdrop__slot { will-change: opacity; }
.backdrop__slot--a { opacity: var(--bg-a-opacity); }
.backdrop__slot--b { opacity: var(--bg-b-opacity); }

.backdrop__slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: translate3d(var(--bg-x), var(--bg-y), 0) scale(var(--bg-scale));
  transform-origin: center;
  will-change: transform;
}

.backdrop__veil {
  z-index: 2;
  background:
    radial-gradient(ellipse 78% 68% at 50% 47%, transparent 18%, rgba(4, 7, 11, 0.18) 54%, rgba(3, 5, 8, 0.66) 100%),
    linear-gradient(105deg, rgba(2, 5, 9, 0.2), rgba(2, 5, 9, 0.05) 48%, rgba(2, 5, 9, 0.32));
}

.backdrop__veil::after {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.08;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.025) 0, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 3px),
    radial-gradient(circle at 28% 32%, rgba(255,255,255,0.08) 0 0.5px, transparent 0.9px);
  background-size: auto, 7px 7px;
  mix-blend-mode: soft-light;
}

.backdrop__glow {
  z-index: 3;
  opacity: var(--glow-opacity);
  background: radial-gradient(circle at 51% 54%, rgba(211, 164, 91, 0.42), rgba(171, 112, 45, 0.11) 22%, transparent 55%);
  mix-blend-mode: screen;
}

.backdrop__haze {
  z-index: 3;
  pointer-events: none;
  opacity: 0.18;
  mix-blend-mode: screen;
}

.backdrop__haze--one {
  inset: -20%;
  background: radial-gradient(ellipse at 34% 48%, rgba(117, 137, 155, 0.14), transparent 52%);
  animation: haze-one 22s ease-in-out infinite alternate;
}

.backdrop__haze--two {
  inset: -15%;
  background: radial-gradient(ellipse at 70% 58%, rgba(181, 126, 61, 0.12), transparent 48%);
  animation: haze-two 27s ease-in-out infinite alternate;
}

@keyframes haze-one {
  from { transform: translate3d(-1.2%, -0.4%, 0) scale(1); opacity: 0.12; }
  to { transform: translate3d(1.5%, 0.8%, 0) scale(1.035); opacity: 0.22; }
}

@keyframes haze-two {
  from { transform: translate3d(1%, 0.8%, 0) scale(1.02); opacity: 0.09; }
  to { transform: translate3d(-1.3%, -0.7%, 0) scale(1); opacity: 0.2; }
}

.celestial {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: min(84vw, 1080px);
  height: min(84vw, 1080px);
  color: var(--gold);
  opacity: var(--celestial-opacity);
  transform: translate(-50%, -50%) rotate(var(--celestial-rotation)) scale(var(--celestial-scale));
  transform-origin: center;
  pointer-events: none;
  will-change: transform, opacity;
}

.celestial g {
  stroke-width: 0.7;
  vector-effect: non-scaling-stroke;
}

.edge-line {
  position: absolute;
  z-index: 12;
  top: max(5.5vh, calc(env(safe-area-inset-top) + 22px));
  right: max(2vw, calc(env(safe-area-inset-right) + 18px));
  bottom: max(5.5vh, calc(env(safe-area-inset-bottom) + 22px));
  width: 1px;
  overflow: hidden;
  background: rgba(241, 237, 228, 0.09);
}

.edge-line span {
  display: block;
  width: 100%;
  height: calc(var(--progress) * 100%);
  background: linear-gradient(to bottom, rgba(199,164,106,0.12), rgba(199,164,106,0.94));
  box-shadow: 0 0 12px rgba(199, 164, 106, 0.48);
}

.scene {
  position: absolute;
  z-index: 10;
  inset: 0;
  opacity: var(--scene-opacity);
  transform: translate3d(0, var(--scene-y), 0) scale(var(--scene-scale));
  transform-origin: center;
  pointer-events: none;
  will-change: opacity, transform;
}

.scene p,
.scene h1 {
  margin: 0;
  font-weight: 400;
}

.opening-mark {
  position: absolute;
  top: max(8vh, calc(env(safe-area-inset-top) + 34px));
  left: max(7vw, calc(env(safe-area-inset-left) + 28px));
  color: rgba(241, 237, 228, 0.82);
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: clamp(0.7rem, 0.72vw, 0.84rem);
  font-weight: 500 !important;
  letter-spacing: 0.46em;
  line-height: 1;
}

.display-word {
  position: absolute;
  color: var(--ink);
  font-size: clamp(5rem, 14.5vw, 15rem);
  line-height: 0.78;
  letter-spacing: -0.072em;
  text-shadow: 0 3px 34px rgba(1, 4, 8, 0.5);
}

.scene--difference .display-word {
  top: 46%;
  left: -1.5vw;
  transform: translateY(-50%);
}

.echo-word {
  position: absolute;
  top: 22%;
  left: 7vw;
  color: rgba(241, 237, 228, 0.52);
  font-size: clamp(3.4rem, 9.4vw, 10.5rem);
  line-height: 0.86;
  letter-spacing: -0.062em;
}

.supporting-line {
  position: absolute;
  right: 8vw;
  bottom: 18%;
  color: var(--ink);
  font-size: clamp(2.4rem, 5.5vw, 6.6rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
  text-align: right;
}

.scene--harmony .display-word {
  top: 48%;
  right: -0.5vw;
  color: #f2eadc;
  transform: translateY(-50%);
}

.scene--harmony .display-word::after {
  position: absolute;
  right: 4%;
  bottom: -0.22em;
  width: 44%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(199,164,106,0.7), transparent);
  box-shadow: 0 0 14px rgba(199,164,106,0.32);
}

.between-line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(84vw, 1080px);
  color: var(--ink);
  font-size: clamp(2.8rem, 6.8vw, 8rem);
  line-height: 0.98;
  letter-spacing: -0.052em;
  text-align: center;
  transform: translate(-50%, -50%);
  text-shadow: 0 3px 38px rgba(1, 4, 8, 0.72);
}

.statement {
  position: absolute;
  top: 50%;
  left: max(8vw, calc(env(safe-area-inset-left) + 28px));
  width: min(84vw, 1320px);
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.4rem, 5.2vw, 6.2rem);
  font-weight: 400;
  line-height: 0.99;
  letter-spacing: -0.052em;
  transform: translateY(-50%);
  text-shadow: 0 3px 42px rgba(1, 4, 8, 0.82);
}

.statement span { display: block; }

.statement span:nth-child(2) {
  margin-top: 0.16em;
  margin-left: 8vw;
  color: #eadfcf;
}

.statement span:nth-child(3) {
  margin-left: 18vw;
  color: var(--ink-soft);
}

.finale {
  position: relative;
  display: grid;
  min-height: 100svh;
  overflow: hidden;
  place-items: center;
  isolation: isolate;
  background: var(--navy);
}

.finale__image,
.finale__veil,
.finale__orbit {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.finale__image {
  z-index: -3;
  background: url("assets/scene-07.jpg") center / cover no-repeat;
  transform: scale(1.025);
}

.finale__veil {
  z-index: -2;
  background:
    radial-gradient(circle at 50% 48%, rgba(8, 14, 23, 0.02) 0 8%, rgba(3, 6, 10, 0.3) 54%, rgba(3, 5, 8, 0.68) 100%),
    linear-gradient(180deg, rgba(4, 7, 11, 0.38), transparent 40%, rgba(4, 7, 11, 0.52));
}

.finale__orbit {
  z-index: -1;
  top: 50%;
  left: 50%;
  width: min(72vw, 780px);
  height: min(72vw, 780px);
  border: 1px solid rgba(199, 164, 106, 0.13);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.finale__orbit::before,
.finale__orbit::after {
  position: absolute;
  content: "";
  border-radius: 50%;
}

.finale__orbit::before {
  inset: 16%;
  border: 1px solid rgba(199, 164, 106, 0.055);
}

.finale__orbit::after {
  top: 50%;
  left: -3px;
  width: 5px;
  height: 5px;
  background: var(--gold);
  box-shadow: 0 0 18px rgba(199, 164, 106, 0.78);
  transform: translateY(-50%);
}

.finale__content {
  position: relative;
  z-index: 2;
  padding:
    max(32px, env(safe-area-inset-top))
    max(28px, env(safe-area-inset-right))
    max(32px, env(safe-area-inset-bottom))
    max(28px, env(safe-area-inset-left));
  opacity: 0.18;
  text-align: center;
  transform: translateY(16px);
  transition: opacity 1.5s cubic-bezier(0.22, 0.72, 0.28, 1),
              transform 1.5s cubic-bezier(0.22, 0.72, 0.28, 1);
}

.finale.is-arrived .finale__content {
  opacity: 1;
  transform: translateY(0);
}

.finale h2 {
  margin: 0;
  color: var(--ink);
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: clamp(2.15rem, 5.8vw, 6.7rem);
  font-weight: 300;
  letter-spacing: 0.34em;
  line-height: 1;
  text-indent: 0.34em;
  text-shadow: 0 2px 28px rgba(1, 4, 8, 0.8);
}

.finale p {
  margin: clamp(2rem, 5.8vh, 4.5rem) 0 0;
  color: rgba(241, 237, 228, 0.62);
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: clamp(0.64rem, 0.88vw, 0.82rem);
  font-weight: 400;
  letter-spacing: 0.48em;
  line-height: 1;
  text-indent: 0.48em;
}

@media (max-width: 760px) {
  .story { height: 570svh; }
  .stage { min-height: 480px; }
  .stage::before { inset: 11px; }
  .celestial { width: 132vw; height: 132vw; }
  .edge-line { right: max(16px, env(safe-area-inset-right)); }

  .opening-mark {
    top: max(7.5vh, calc(env(safe-area-inset-top) + 30px));
    left: max(8vw, calc(env(safe-area-inset-left) + 23px));
    font-size: 0.64rem;
    letter-spacing: 0.38em;
  }

  .display-word {
    font-size: clamp(4.3rem, 22vw, 9.2rem);
    letter-spacing: -0.07em;
  }

  .scene--difference .display-word { top: 43%; left: -4vw; }

  .echo-word {
    top: 25%;
    left: 8vw;
    font-size: clamp(3.1rem, 17vw, 6.8rem);
  }

  .supporting-line {
    right: 9vw;
    bottom: 22%;
    width: 78vw;
    font-size: clamp(2.5rem, 12vw, 5.4rem);
  }

  .scene--harmony .display-word { top: 50%; right: -4vw; }

  .between-line {
    width: 82vw;
    font-size: clamp(3rem, 13.5vw, 5.6rem);
    text-align: left;
  }

  .statement {
    left: max(8vw, calc(env(safe-area-inset-left) + 21px));
    width: 82vw;
    font-size: clamp(2.42rem, 11.2vw, 4.7rem);
    line-height: 1.02;
  }

  .statement span:nth-child(2),
  .statement span:nth-child(3) { margin-left: 0; }

  .statement span:nth-child(2) { margin-top: 0.32em; }
  .finale__image { background-position: 58% center; }
  .finale__orbit { width: 118vw; height: 118vw; }

  .finale h2 {
    font-size: clamp(1.9rem, 9.8vw, 3.4rem);
    letter-spacing: 0.25em;
    text-indent: 0.25em;
  }

  .finale p {
    font-size: 0.61rem;
    letter-spacing: 0.38em;
    text-indent: 0.38em;
  }
}

@media (max-height: 620px) and (orientation: landscape) {
  .stage { min-height: 100svh; }

  .opening-mark {
    top: max(10vh, calc(env(safe-area-inset-top) + 22px));
  }

  .display-word {
    font-size: clamp(4rem, 16vw, 8rem);
  }

  .statement {
    font-size: clamp(2rem, 5vw, 4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .story { height: 520svh; }

  .backdrop__slot img,
  .scene,
  .celestial {
    will-change: auto;
  }

  .backdrop__haze {
    display: none;
    animation: none;
  }

  .backdrop__slot img,
  .scene,
  .finale__image {
    transform: none;
  }

  .celestial {
    transform: translate(-50%, -50%);
  }

  .finale__content {
    transition: opacity 0.2s linear;
    transform: none;
  }
}

@media (forced-colors: active) {
  .backdrop,
  .celestial,
  .edge-line,
  .finale__image,
  .finale__orbit {
    display: none;
  }

  .scene,
  .finale__content {
    color: CanvasText;
  }
}