* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  background: #79bfb8;
  font-family: "Roboto", sans-serif;
  font-optical-sizing: auto;
}

#scene {
  display: block;
  width: 100%;
  height: 100%;
}

.hud {
  position: fixed;
  top: 24px;
  left: 26px;
  z-index: 10;
  color: #ffffff;
  pointer-events: none;
  user-select: none;
  text-shadow: 0 2px 10px rgba(17, 70, 66, 0.2);
}

.eyebrow {
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  opacity: 0.72;
}

h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1;
}

p {
  margin: 9px 0 0;
  font-size: 12px;
  font-weight: 400;
  opacity: 0.72;
}

.fullscreen-button {
  position: fixed;
  top: 24px;
  right: 28px;
  z-index: 10;
  display: grid;
  width: 38px;
  height: 38px;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(24, 22, 20, 0.55);
  color: #dddddd;
  cursor: pointer;
}

.fullscreen-button:hover {
  background: rgba(40, 37, 33, 0.78);
}

.fullscreen-button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.fullscreen-button.active svg {
  transform: rotate(180deg);
}

.fullscreen-button.unavailable {
  opacity: 0.42;
  cursor: default;
}

@media (max-width: 600px) {
  .fullscreen-button {
    top: 18px;
    right: 20px;
  }
}