html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #efe4d3;
}

#hall {
  position: fixed;
  inset: 0;
  display: block;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
}

.hero {
  position: fixed;
  top: max(16px, env(safe-area-inset-top), 4.5vh);
  left: 16px;
  right: 16px;
  text-align: center;
  color: #2c221b;
  font-family: "Segoe UI", "Helvetica Neue", Roboto, Arial, sans-serif;
  pointer-events: none;
  text-shadow: 0 1px 0 rgba(255, 250, 240, 0.7), 0 0 18px rgba(255, 248, 235, 0.8);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.1rem, 6.2vw, 4.4rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1;
}

.hero p {
  margin: 0.45em 0 0;
  font-size: clamp(0.85rem, 1.8vw, 1.15rem);
  letter-spacing: 0.32em;
  text-transform: lowercase;
  opacity: 0.72;
}

.radio-key {
  position: fixed;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.radio-key:focus-visible {
  outline: 2px solid #ffe7a3;
  outline-offset: 2px;
}