* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background: #0c0d09;
}

canvas {
  display: block;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: default;
}

.dev-page {
  display: grid;
  grid-template-columns: minmax(0, 1fr) min(360px, 34vw);
  height: 100%;
  height: 100dvh;
  overflow: hidden;
}

.dev-page > script {
  display: none;
}

.dev-page canvas {
  position: relative;
  inset: auto;
  grid-column: 1;
  grid-row: 1;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
}

.dev-panel {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  top: auto;
  right: auto;
  z-index: 1;
  width: 100%;
  min-width: 0;
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: rgba(10, 11, 8, 0.98);
  color: #e8e4d8;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: -12px 0 32px rgba(0, 0, 0, 0.35);
  font: 13px/1.4 system-ui, sans-serif;
  overflow: hidden;
}

.dev-panel__header {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dev-panel__header strong {
  display: block;
  font-size: 14px;
}

.dev-panel__hint {
  display: block;
  margin-top: 4px;
  color: rgba(232, 228, 216, 0.62);
  font-size: 11px;
}

.dev-panel__hint kbd {
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  font: 10px/1.4 ui-monospace, monospace;
}

.dev-panel__reset {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  cursor: pointer;
}

.dev-panel__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 0 24px;
  -webkit-overflow-scrolling: touch;
}

.dev-panel__hint a {
  color: rgba(180, 210, 120, 0.95);
  text-decoration: none;
}

.dev-panel__hint a:hover {
  text-decoration: underline;
}

.dev-panel__group {
  padding: 12px 16px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dev-panel__group h2 {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(180, 210, 120, 0.95);
}

.dev-panel__group-hint {
  margin: 0 0 10px;
  color: rgba(232, 228, 216, 0.55);
  font-size: 11px;
}

.dev-panel__row {
  display: block;
  margin-bottom: 12px;
}

.dev-panel__row-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.dev-panel__row output {
  font: 11px/1.4 ui-monospace, SFMono-Regular, monospace;
  color: rgba(232, 228, 216, 0.72);
}

.dev-panel__row input[type="range"] {
  width: 100%;
  accent-color: #8aa85a;
}