:root {
  color-scheme: dark;
  --stage-black: #000000;
  --control-yellow: #ffd84d;
  --control-ink: #080808;
  --focus-white: #ffffff;
  --focus-blue: #6ec8ff;
}

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

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--stage-black);
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  font-family: ui-rounded, "Arial Rounded MT Bold", "Trebuchet MS", system-ui, sans-serif;
}

button {
  font: inherit;
}

.stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  isolation: isolate;
  background: var(--stage-black);
}

.laugh-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 12%;
  background: var(--stage-black);
}

.sound-prompt {
  position: absolute;
  z-index: 1;
  left: 50%;
  bottom: max(2rem, calc(env(safe-area-inset-bottom) + 1.25rem));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-width: min(18rem, calc(100vw - 2rem));
  min-height: 4rem;
  padding: 0.85rem 1.4rem;
  border: 3px solid var(--control-ink);
  border-radius: 999px;
  color: var(--control-ink);
  background: var(--control-yellow);
  box-shadow:
    0 6px 0 var(--control-ink),
    0 12px 32px rgb(0 0 0 / 45%);
  font-size: clamp(1rem, 3.8vw, 1.2rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  cursor: pointer;
  transform: translateX(-50%);
  animation: prompt-in 220ms ease-out both;
  transition:
    transform 120ms ease,
    box-shadow 120ms ease,
    background-color 120ms ease;
  -webkit-tap-highlight-color: transparent;
}

.sound-prompt[hidden] {
  display: none;
}

.sound-prompt:hover {
  background: #ffe477;
  transform: translateX(-50%) translateY(-2px);
  box-shadow:
    0 8px 0 var(--control-ink),
    0 14px 34px rgb(0 0 0 / 48%);
}

.sound-prompt:active {
  transform: translateX(-50%) translateY(4px);
  box-shadow:
    0 2px 0 var(--control-ink),
    0 8px 20px rgb(0 0 0 / 42%);
}

.sound-prompt:focus-visible {
  outline: 4px solid var(--focus-white);
  outline-offset: 5px;
}

@supports not selector(:focus-visible) {
  .sound-prompt:focus {
    outline: 4px solid var(--focus-blue);
    outline-offset: 5px;
  }
}

.sound-prompt__icon {
  width: 1.55rem;
  height: 1.55rem;
  flex: none;
  fill: currentColor;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

@keyframes prompt-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

@keyframes prompt-in-wide {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (min-aspect-ratio: 2 / 1) {
  .sound-prompt {
    right: max(1rem, calc(env(safe-area-inset-right) + 0.75rem));
    left: auto;
    min-width: min(16rem, calc(100vw - 2rem));
    transform: none;
    animation-name: prompt-in-wide;
  }

  .sound-prompt:hover {
    transform: translateY(-2px);
  }

  .sound-prompt:active {
    transform: translateY(4px);
  }
}

@media (max-height: 28rem) {
  .sound-prompt {
    bottom: max(0.9rem, calc(env(safe-area-inset-bottom) + 0.55rem));
    min-height: 3.5rem;
    padding-block: 0.65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sound-prompt {
    animation: none;
    transition: none;
  }
}