.prototype-panel {
  position: fixed;
  bottom: var(--prism-space-4);
  left: var(--prism-space-4);
  z-index: 2000;
  width: min(100vw - 32px, 320px);
  border: 1px solid color-mix(in srgb, var(--fuse-white-500) 14%, transparent);
  border-radius: var(--prism-radius-card);
  background: var(--fuse-navy-800);
  box-shadow: var(--prism-shadow-elevate);
  color: color-mix(in srgb, var(--fuse-white-500) 88%, transparent);
  font-size: var(--prism-font-size-13);
  line-height: 1.35;
}

.prototype-panel--collapsed {
  width: auto;
  min-width: min(100vw - 32px, 280px);
}

.prototype-panel--collapsed .prototype-panel__body {
  display: none;
}

.prototype-panel--collapsed .prototype-panel__head {
  border-bottom: 0;
}

.prototype-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--prism-space-2);
  width: 100%;
  padding: var(--prism-space-2) var(--prism-space-3);
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--fuse-white-500) 10%, transparent);
  border-radius: inherit;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.prototype-panel__head:hover {
  background: color-mix(in srgb, var(--fuse-white-500) 4%, transparent);
}

.prototype-panel__title {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.prototype-panel__kicker {
  font-size: 11px;
  font-weight: var(--prism-font-weight-700);
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--fuse-white-500) 55%, transparent);
}

.prototype-panel__summary {
  font-size: 11px;
  font-weight: var(--prism-font-weight-600);
  letter-spacing: normal;
  color: color-mix(in srgb, var(--fuse-white-500) 88%, transparent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.prototype-panel__toggle-icon {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--prism-radius-control);
  background: color-mix(in srgb, var(--fuse-white-500) 10%, transparent);
  color: color-mix(in srgb, var(--fuse-white-500) 85%, transparent);
  font-size: var(--prism-font-size-16);
  font-weight: var(--prism-font-weight-400);
  line-height: 1;
  pointer-events: none;
}

.prototype-panel__body {
  display: flex;
  flex-direction: column;
  gap: var(--prism-space-3);
  padding: var(--prism-space-3);
}

.prototype-panel__field {
  display: flex;
  flex-direction: column;
  gap: var(--prism-space-1);
}

.prototype-panel__label {
  font-size: 11px;
  font-weight: var(--prism-font-weight-600);
  color: color-mix(in srgb, var(--fuse-white-500) 50%, transparent);
}

.prototype-panel__select {
  width: 100%;
  padding: var(--prism-space-2) var(--prism-space-3);
  border: 1px solid color-mix(in srgb, var(--fuse-white-500) 18%, transparent);
  border-radius: var(--prism-radius-control);
  background: var(--fuse-navy-900);
  color: color-mix(in srgb, var(--fuse-white-500) 92%, transparent);
  font: inherit;
  cursor: pointer;
}

.prototype-panel__select optgroup {
  font-size: 11px;
  font-weight: var(--prism-font-weight-700);
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--fuse-white-500) 55%, transparent);
}

.prototype-panel__select option {
  font-weight: var(--prism-font-weight-400);
  letter-spacing: normal;
  color: color-mix(in srgb, var(--fuse-white-500) 92%, transparent);
}

.prototype-panel__select option:disabled {
  color: color-mix(in srgb, var(--fuse-white-500) 40%, transparent);
}

.prototype-panel__hint {
  margin: 0;
  font-size: 11px;
  color: color-mix(in srgb, var(--fuse-white-500) 45%, transparent);
}