:root {
  color-scheme: dark;
  --ink: #09051a;
  --violet: #160934;
  --pink: #ff35b8;
  --cyan: #36d8ff;
  --yellow: #ffeb3d;
  --white: #f8f6ff;
  --muted: #a59dbd;
  font-family: "Trebuchet MS", Arial, sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--ink);
}

body {
  min-width: 320px;
  min-height: 100svh;
  margin: 0;
  overflow-x: hidden;
  color: var(--white);
  background:
    radial-gradient(ellipse at 12% 8%, rgba(17, 88, 156, 0.36), transparent 35rem),
    radial-gradient(ellipse at 88% 28%, rgba(126, 17, 105, 0.28), transparent 32rem),
    #03020b;
}

button,
input {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.32;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255, 255, 255, 0.025) 3px 4px),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.24'/%3E%3C/svg%3E");
  mix-blend-mode: screen;
}

.experience {
  position: relative;
  width: min(100%, 72rem);
  min-height: 100svh;
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem max(1.5rem, env(safe-area-inset-bottom));
}

.layout {
  display: grid;
  align-items: center;
  gap: 0.8rem;
}

.case-area {
  display: grid;
  min-height: min(91vw, 31rem);
  place-items: start center;
  transition: min-height 850ms cubic-bezier(0.22, 0.8, 0.2, 1);
}

.case-area:has(.case-shell.is-open) {
  min-height: min(179vw, 54rem);
}

.case-shell {
  position: relative;
  width: min(88vw, 27rem);
  aspect-ratio: 1;
  perspective: 1300px;
  transition: transform 1050ms cubic-bezier(0.2, 0.72, 0.18, 1);
}

.jewel-case {
  position: relative;
  width: 100%;
  height: 100%;
  transform: rotateX(2deg) rotateZ(-0.7deg);
  transform-style: preserve-3d;
  filter: drop-shadow(0 1.8rem 1.8rem rgba(0, 0, 0, 0.48));
  transition: transform 900ms cubic-bezier(0.22, 0.8, 0.2, 1), filter 500ms ease;
}

.case-shell.is-open .jewel-case {
  transform: rotateX(0deg) rotateZ(0deg);
  filter: drop-shadow(0 1.4rem 1.6rem rgba(0, 0, 0, 0.42));
}

.case-tray,
.case-lid,
.lid-face {
  position: absolute;
  inset: 0;
  border-radius: 0.5rem;
}

.case-tray {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.48);
  background:
    linear-gradient(125deg, rgba(255, 255, 255, 0.18), transparent 26%),
    radial-gradient(circle at 50% 48%, #28223b 0 46%, #100b20 46.5% 59%, #21183d 60% 100%);
  box-shadow:
    inset 0 0 0 0.35rem rgba(255, 255, 255, 0.08),
    inset 0 0 2rem rgba(153, 76, 255, 0.24),
    0 0 0 1px rgba(0, 0, 0, 0.75);
}

.tray-ridges {
  position: absolute;
  inset: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  box-shadow: 0 0 0 0.28rem rgba(0, 0, 0, 0.2), inset 0 0 0 0.24rem rgba(255, 255, 255, 0.05);
}

.disc {
  position: absolute;
  inset: 9%;
  overflow: hidden;
  border-radius: 50%;
  background: #111;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.55),
    0 0.8rem 1.5rem rgba(0, 0, 0, 0.55);
  transition: transform 400ms ease;
}

.disc picture,
.disc img {
  display: block;
  width: 100%;
  height: 100%;
}

.disc img {
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05) brightness(0.8);
}

.disc__rainbow {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    conic-gradient(from 25deg, transparent, rgba(57, 221, 255, 0.42), transparent 18%, rgba(255, 45, 179, 0.34), transparent 38%, rgba(255, 239, 76, 0.34), transparent 61%, rgba(57, 221, 255, 0.3), transparent 82%),
    radial-gradient(circle, transparent 0 13%, rgba(255, 255, 255, 0.18) 13.4% 14.2%, transparent 14.6%);
  mix-blend-mode: screen;
  opacity: 0.8;
}

.disc__hub {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18%;
  aspect-ratio: 1;
  border: 0.45rem solid rgba(230, 226, 242, 0.75);
  border-radius: 50%;
  background: #090716;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.7), inset 0 0 0 1px rgba(255, 255, 255, 0.55);
  transform: translate(-50%, -50%);
}

.disc.is-playing {
  animation: disc-spin 9s linear infinite;
}

@keyframes disc-spin {
  to { transform: rotate(360deg); }
}

.case-lid {
  z-index: 3;
  transform-origin: 50% 98.8%;
  transform-style: preserve-3d;
  transition: transform 1050ms cubic-bezier(0.2, 0.72, 0.18, 1);
  will-change: transform;
}

.case-shell.is-open .case-lid {
  transform: rotateX(180deg);
}

.lid-face {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.64);
  background: rgba(204, 232, 255, 0.08);
  box-shadow:
    inset 0 0 0 0.3rem rgba(255, 255, 255, 0.09),
    inset 0 0 0 0.42rem rgba(0, 0, 0, 0.26),
    0.1rem 0 0.45rem rgba(0, 0, 0, 0.4);
  backface-visibility: hidden;
}

.lid-face--front picture,
.lid-face--front img {
  display: block;
  width: 100%;
  height: 100%;
}

.lid-face--front img {
  object-fit: cover;
}

.plastic-glare {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0.25), transparent 18% 72%, rgba(255, 255, 255, 0.12)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.14), transparent 3% 97%, rgba(255, 255, 255, 0.16));
  pointer-events: none;
}

.lid-face--inside {
  display: block;
  background-color: #071736;
  background-image: url("assets/booklet-bg-abstract-640.webp");
  background-image: image-set(
    url("assets/booklet-bg-abstract-640.webp") 1x,
    url("assets/booklet-bg-abstract-1024.webp") 2x
  );
  background-position: center;
  background-size: cover;
  transform: rotateX(180deg);
}

.lid-face--inside::before {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255, 255, 255, 0.012) 3px 4px),
    rgba(1, 5, 20, 0.72);
  box-shadow: inset 0 0 3.5rem rgba(0, 0, 0, 0.5);
  content: "";
  pointer-events: none;
}

.booklet {
  position: absolute;
  inset: 8.5%;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-trigger {
  position: absolute;
  z-index: 4;
  inset: 0;
  width: 100%;
  border: 0;
  border-radius: 0.5rem;
  background: transparent;
  cursor: pointer;
}

.case-trigger:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 0.4rem;
}

.case-shell.is-open .case-trigger {
  pointer-events: none;
}

.open-hint {
  position: absolute;
  z-index: 5;
  left: 50%;
  bottom: -0.35rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.58rem 0.78rem;
  border: 2px solid #171020;
  border-radius: 0.1rem;
  color: #161020;
  background: var(--yellow);
  box-shadow: 4px 4px 0 var(--pink), 7px 7px 0 rgba(0, 0, 0, 0.55);
  font-family: "Arial Black", Impact, Arial, sans-serif;
  font-size: 0.7rem;
  font-style: italic;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  transform: translate(-50%, 50%);
  pointer-events: none;
  transition: opacity 240ms ease, transform 240ms ease;
}

.open-hint svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: #161020;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  animation: hint-bounce 1.4s ease-in-out infinite;
}

@keyframes hint-bounce {
  50% { transform: translateY(0.18rem); }
}

.case-shell.is-open .open-hint {
  opacity: 0;
  transform: translate(-50%, 70%);
}

.track-list {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

.track {
  display: flex;
  align-items: center;
  overflow: hidden;
  width: 100%;
  min-height: clamp(3.45rem, 14vw, 4.2rem);
  padding: 0.55rem 0.3rem;
  border: 0;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(54, 216, 255, 0.12) var(--track-progress, 0%), transparent var(--track-progress, 0%));
  text-align: left;
  cursor: pointer;
  text-shadow: 1px 1px 0 #06020d, 2px 2px 0 rgba(255, 35, 172, 0.28);
  transition: color 120ms steps(2, end), background 120ms steps(2, end);
}

.track:active,
.track.is-active {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(54, 216, 255, 0.16) var(--track-progress, 0%), transparent var(--track-progress, 0%)),
    linear-gradient(90deg, rgba(255, 52, 183, 0.34), rgba(255, 235, 61, 0.1));
}

.track:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.track__title {
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  font-size: clamp(0.78rem, 3.4vw, 1.05rem);
  font-family: Arial, "Trebuchet MS", sans-serif;
  font-weight: 900;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track__line {
  display: flex;
  align-items: baseline;
  width: 100%;
  min-width: 0;
}

.track__leaders {
  flex: 1 1 1rem;
  min-width: 0.8rem;
  height: 0.22em;
  margin: 0 0.35rem;
  background-image: radial-gradient(circle, currentColor 1.2px, transparent 1.4px);
  background-position: left center;
  background-repeat: repeat-x;
  background-size: 0.38rem 0.22em;
}

.track__duration {
  flex: 0 0 auto;
  font-family: Arial, "Trebuchet MS", sans-serif;
  font-size: clamp(0.9rem, 4vw, 1.1rem);
  font-weight: 900;
  white-space: nowrap;
}

.player-message {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  min-height: 1rem;
  margin: 0;
  color: #ffb6de;
  font-size: 0.7rem;
  text-align: center;
}

@media (min-width: 900px) {
  .experience {
    display: grid;
    align-content: center;
    padding-inline: 3rem;
  }

  .layout {
    display: block;
  }

  .case-area {
    min-height: 32rem;
    place-items: center;
  }

  .case-area:has(.case-shell.is-open) {
    min-height: 32rem;
  }

  .case-shell {
    width: min(31vw, 24rem);
  }

  .case-shell.is-open {
    transform: translateX(50%);
  }

  .case-lid {
    transform-origin: 1.2% 50%;
  }

  .case-shell.is-open .case-lid {
    transform: rotateY(-180deg);
  }

  .lid-face--inside {
    transform: rotateY(180deg);
  }
}

@media (hover: hover) and (pointer: fine) {
  .case-shell:not(.is-open):hover .jewel-case {
    transform: rotateX(4deg) rotateY(-3deg) rotateZ(-0.7deg) translateY(-0.2rem);
  }

  .track:hover {
    color: var(--yellow);
    background: linear-gradient(90deg, rgba(255, 52, 183, 0.28), transparent);
  }

}

@media (max-height: 720px) and (max-width: 899px) {
  .case-area {
    min-height: min(82vw, 25rem);
  }

  .case-area:has(.case-shell.is-open) {
    min-height: min(158vw, 46rem);
  }

  .case-shell {
    width: min(79vw, 23rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
  }
}