/* Sai Theme Lab · floating param panel (standard) */
.tl-param-panel {
  --tl-bg: rgba(20, 20, 22, 0.92);
  --tl-fg: #ebdbb2;
  --tl-muted: rgba(235, 219, 178, 0.55);
  --tl-accent: #d79921;
  --tl-border: rgba(235, 219, 178, 0.18);
  position: fixed;
  z-index: 99999;
  width: min(300px, calc(100vw - 24px));
  max-height: min(70vh, 520px);
  display: flex;
  flex-direction: column;
  background: var(--tl-bg);
  color: var(--tl-fg);
  border: 1px solid var(--tl-border);
  border-radius: 10px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  font: 12px/1.4 ui-monospace, "Cascadia Code", Consolas, monospace;
  backdrop-filter: blur(10px);
  user-select: none;
}
.tl-param-panel[data-corner="br"] { right: 12px; bottom: 12px; }
.tl-param-panel[data-corner="bl"] { left: 12px; bottom: 12px; }
.tl-param-panel[data-corner="tr"] { right: 12px; top: 12px; }
.tl-param-panel[data-corner="tl"] { left: 12px; top: 12px; }

/* Wall / iframe embed: keep effect visible — compact + default collapsed */
.tl-param-panel.is-embed {
  width: min(220px, calc(100vw - 16px));
  max-height: min(48vh, 320px);
  font-size: 11px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}
.tl-param-panel.is-embed.is-collapsed {
  width: auto;
  max-width: min(200px, calc(100vw - 16px));
  max-height: none;
  opacity: 0.88;
}
.tl-param-panel.is-embed.is-collapsed:hover {
  opacity: 1;
}
.tl-param-panel.is-embed .tl-param-panel__head {
  padding: 5px 8px;
}
.tl-param-panel.is-embed .tl-param-panel__title {
  font-size: 10px;
  max-width: 11em;
}
.tl-param-panel.is-embed .tl-param-panel__body {
  padding: 6px 8px;
  gap: 6px;
}
.tl-param-panel.is-embed .tl-param-panel__foot {
  padding: 6px 8px;
  gap: 4px;
}
.tl-param-panel.is-embed .tl-param-panel__btn {
  padding: 1px 5px;
  font-size: 10px;
}

.tl-param-panel__head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--tl-border);
  cursor: grab;
}
.tl-param-panel.is-collapsed .tl-param-panel__head {
  border-bottom: 0;
}
.tl-param-panel__head:active { cursor: grabbing; }
.tl-param-panel__title {
  flex: 1;
  font-weight: 600;
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tl-param-panel__btn {
  appearance: none;
  border: 1px solid var(--tl-border);
  background: transparent;
  color: var(--tl-fg);
  border-radius: 6px;
  padding: 2px 7px;
  font: inherit;
  cursor: pointer;
  line-height: 1.4;
}
.tl-param-panel__btn:hover {
  border-color: var(--tl-accent);
  color: var(--tl-accent);
}
.tl-param-panel__body {
  overflow: auto;
  padding: 8px 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tl-param-panel.is-collapsed .tl-param-panel__body,
.tl-param-panel.is-collapsed .tl-param-panel__foot {
  display: none;
}
.tl-param-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 8px;
  align-items: center;
}
.tl-param-row label {
  grid-column: 1 / -1;
  color: var(--tl-muted);
  font-size: 11px;
}
.tl-param-row input[type="range"] {
  width: 100%;
  accent-color: var(--tl-accent);
}
.tl-param-row input[type="number"],
.tl-param-row input[type="text"],
.tl-param-row input[type="color"],
.tl-param-row select {
  width: 100%;
  grid-column: 1 / -1;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--tl-border);
  color: var(--tl-fg);
  border-radius: 6px;
  padding: 4px 6px;
  font: inherit;
}
.tl-param-row input[type="color"] {
  height: 28px;
  padding: 2px;
}
.tl-param-val {
  color: var(--tl-accent);
  font-variant-numeric: tabular-nums;
  min-width: 3.2em;
  text-align: right;
}
.tl-param-panel__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 10px;
  border-top: 1px solid var(--tl-border);
}
.tl-param-panel__foot .tl-param-panel__btn { flex: 1 1 auto; }