*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --paper: #f4f1ea;
}

html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--paper);
  font-family: "Georgia", "Palatino Linotype", Palatino, serif;
}

.stage {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 5.5vh 6vw 7vh;
}

.pond-frame {
  position: relative;
  width: min(88vw, 1280px);
  height: min(80vh, 780px);
  border-radius: 88px;
  overflow: hidden;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, #000 8%, #000 92%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 10%, #000 90%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(to right, transparent 0%, #000 8%, #000 92%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 10%, #000 90%, transparent 100%);
  mask-composite: intersect;
}

#pond {
  display: block;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.grain {
  pointer-events: none;
  position: absolute;
  inset: 0;
  opacity: 0.22;
  mix-blend-mode: multiply;
  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='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

.soft-edge {
  pointer-events: none;
  position: absolute;
  inset: -2px;
  border-radius: 88px;
  box-shadow:
    inset 0 0 36px 18px var(--paper),
    inset 0 0 72px 36px var(--paper),
    inset 0 0 120px 58px rgba(244, 241, 234, 0.92);
}

.hint {
  position: absolute;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  color: rgba(90, 110, 108, 0.7);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  pointer-events: none;
  animation: fadeHint 5s ease forwards;
}

@keyframes fadeHint {
  0%,
  55% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.hero-copy {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  place-items: center;
  pointer-events: none;
  padding: 8% 10%;
}

.hero-copy .line {
  grid-area: 1 / 1;
  margin: 0;
  max-width: none;
  font-family: "Aboreto", serif;
  font-weight: 400;
  font-size: clamp(1.35rem, 2.8vw, 2.35rem);
  line-height: 1.55;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  color: #ffffff;
  text-shadow: 0 0 1px rgba(255,255,255,0.35), 0 2px 22px rgba(70, 110, 120, 0.28);
  opacity: 0;
  animation: sereneFade 24s ease-in-out infinite;
}

.hero-copy .line:nth-child(1) {
  white-space: nowrap;
}

.hero-copy .line:nth-child(2),
.hero-copy .line:nth-child(3) {
  max-width: 18ch;
  line-height: 1.45;
}

.hero-copy .line:nth-child(2) {
  animation-delay: 8s;
}

.hero-copy .line:nth-child(3) {
  font-size: clamp(1.1rem, 2.3vw, 1.95rem);
  animation-delay: 16s;
}

@keyframes sereneFade {
  0% {
    opacity: 0;
  }
  6% {
    opacity: 1;
  }
  24% {
    opacity: 1;
  }
  32% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy .line {
    animation: none;
    opacity: 0;
  }
  .hero-copy .line:first-child {
    opacity: 1;
  }
}