:root {
  color-scheme: dark;
  font-family: Arial, Helvetica, sans-serif;
  background: #000;
}

* {
  box-sizing: border-box;
}

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

button {
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 6px;
  padding: 0 14px;
  color: #f7f7f7;
  background: rgba(20, 20, 20, 0.72);
  font: inherit;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  background: rgba(54, 54, 54, 0.82);
  outline: none;
}

button[aria-pressed="false"] {
  color: #b8b8b8;
}

input {
  width: 100%;
  accent-color: #f7f7f7;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
}

.stage {
  position: fixed;
  inset: 0;
  background: #000;
}

#camera {
  display: none;
}

#canvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

.menu-toggle {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 3;
  opacity: 0;
  transition: opacity 140ms ease, background 140ms ease;
}

.menu-toggle:hover,
.menu-toggle:focus-visible,
.menu-toggle[aria-expanded="true"] {
  opacity: 1;
}

.controls {
  position: fixed;
  top: 62px;
  left: 14px;
  z-index: 2;
  width: min(300px, calc(100vw - 28px));
  max-height: calc(100vh - 82px);
  overflow: auto;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(12px);
  transform: translateX(calc(-100% - 24px));
  transition: transform 160ms ease;
}

.controls.open {
  transform: translateX(0);
}

.control-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.control-actions button {
  flex: 1 1 86px;
  padding: 0 10px;
}

.sliders {
  display: grid;
  gap: 18px;
}

.slider-group {
  display: grid;
  gap: 12px;
}

.slider-group h2 {
  margin: 0;
  color: #f2f2f2;
  font-size: 14px;
  font-weight: 700;
}

.sliders label {
  display: grid;
  gap: 6px;
}

.sliders span {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #f2f2f2;
  font-size: 13px;
}

.sliders output {
  color: #cfcfcf;
}

.status {
  position: fixed;
  left: 50%;
  bottom: 20px;
  max-width: min(520px, calc(100vw - 32px));
  padding: 8px 12px;
  border-radius: 6px;
  color: #f2f2f2;
  background: rgba(0, 0, 0, 0.64);
  text-align: center;
  transform: translateX(-50%);
}

.status:empty {
  display: none;
}

@media (max-width: 540px) {
  .menu-toggle {
    top: 10px;
    left: 10px;
  }

  .controls {
    top: 56px;
    left: 10px;
    width: calc(100vw - 20px);
  }

  button {
    min-width: 0;
    padding: 0 8px;
  }
}