:root {
  --abyss: #070b16;
  --kelp: #0c1628;
  --tide: #15243c;
  --salt: #f4eee4;
  --foam: #e7f2ee;
  --afterglow: #c5d4e8;
  --ink: #101820;
  --waterline: 54vh;
  --gutter: clamp(1.25rem, 6vw, 5.5rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  background: var(--abyss);
}

body {
  margin: 0;
  min-height: 100dvh;
  color: var(--salt);
  background:
    radial-gradient(ellipse 50% 35% at 68% 38%, #8aa4c428, transparent 55%),
    linear-gradient(180deg, #070b16 0%, #101a30 42%, #1a2744 50%, #0c1a2c 72%, #2a2a30 100%);
  font-family: Commissioner, "Avenir Next", "Segoe UI", sans-serif;
  font-weight: 400;
  letter-spacing: 0.01em;
  overflow: hidden;
}

.canvas {
  position: fixed;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.canvas-sea {
  z-index: 0;
}

.canvas-surf {
  z-index: 3;
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: 0.07;
  mix-blend-mode: overlay;
  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='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

.top,
.floor,
.stage {
  position: relative;
}

.top,
.floor {
  z-index: 6;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem var(--gutter) 0;
}

.brand {
  color: var(--salt);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: lowercase;
  opacity: 0.82;
  text-shadow: 0 1px 12px rgba(7, 24, 32, 0.45);
}

.brand:hover {
  opacity: 1;
}

.listen {
  appearance: none;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 0.55rem;
  margin: 0;
  padding: 0.45rem 0;
  border: 0;
  background: transparent;
  color: var(--salt);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
  opacity: 0.78;
  text-shadow: 0 1px 12px rgba(7, 24, 32, 0.45);
}

.listen:hover,
.listen[aria-pressed="true"] {
  opacity: 1;
}

.listen:focus-visible,
.brand:focus-visible {
  outline: 2px solid var(--afterglow);
  outline-offset: 6px;
}

.listen-mark {
  width: 2.1rem;
  height: 0.85rem;
  overflow: visible;
}

.listen[aria-pressed="true"] .w1,
.listen[aria-pressed="true"] .w2,
.listen[aria-pressed="true"] .w3 {
  animation: sea-line 2.8s ease-in-out infinite;
}

.listen[aria-pressed="true"] .w2 {
  animation-delay: -0.9s;
}

.listen[aria-pressed="true"] .w3 {
  animation-delay: -1.6s;
}

@keyframes sea-line {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.55;
  }
  50% {
    transform: translateY(-1.5px);
    opacity: 1;
  }
}

.stage {
  z-index: 2;
  width: min(92vw, 68rem);
  margin: 0;
  padding: 0 var(--gutter);
  position: absolute;
  left: 0;
  top: var(--waterline);
  transform: translateY(-42%);
  pointer-events: none;
}

.stage h1 {
  margin: 0;
  font-family: Fraunces, "Iowan Old Style", Palatino, Georgia, serif;
  font-optical-sizing: auto;
  font-size: clamp(4.6rem, 16vw, 11.4rem);
  font-weight: 500;
  font-variation-settings: "SOFT" 72, "WONK" 1, "opsz" 144;
  line-height: 0.8;
  letter-spacing: -0.045em;
  color: #f8f3ea;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.22),
    0 10px 30px rgba(8, 22, 30, 0.35);
}

.floor {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0 var(--gutter) 1.3rem;
}

.floor p {
  margin: 0;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: #d8d2c8;
  opacity: 0.55;
}

@media (max-width: 720px) {
  .stage {
    transform: translateY(-28%);
  }

  .listen {
    letter-spacing: 0.1em;
    font-size: 0.64rem;
  }

  .listen-mark {
    width: 1.35rem;
    height: 0.7rem;
  }

  .floor p {
    letter-spacing: 0.28em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .listen[aria-pressed="true"] .w1,
  .listen[aria-pressed="true"] .w2,
  .listen[aria-pressed="true"] .w3 {
    animation: none;
  }

  .stage h1 {
    text-shadow: 0 10px 28px rgba(7, 24, 32, 0.3);
  }
}