:root {
  color-scheme: dark;
  --bg: #000;
  --fg: #f5f5f5;
  --accent: #7cf;
  --panel: rgba(0, 0, 0, 0.72);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

#output {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

#camera {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

#overlay {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  display: grid;
  gap: 10px;
  transition: transform 0.2s ease;
}

#overlay.hidden {
  transform: translateY(calc(100% - 44px));
}

#status {
  font-size: 13px;
  opacity: 0.85;
}

#prompt-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
}

#prompt-text {
  font-size: 14px;
  line-height: 1.35;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--panel);
  min-height: 44px;
}

#custom-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

#custom-prompt {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--fg);
  padding: 10px 12px;
  font-size: 16px;
}

button {
  border: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.14);
  color: var(--fg);
  padding: 10px 14px;
  font-size: 15px;
}

#start {
  background: var(--accent);
  color: #001018;
  font-weight: 600;
}

#toggle-ui {
  position: fixed;
  top: calc(8px + env(safe-area-inset-top));
  right: 8px;
  padding: 8px 12px;
  background: var(--panel);
}