.palette-item {
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.palette-item:hover {
  border-color: #cfd3ea;
  box-shadow: var(--shadow-soft);
}

.left-rail {
  position: relative;
  z-index: 35;
  min-height: 0;
  overflow: visible;
  background: var(--panel);
  border-right: 1px solid var(--line);
}

.palette-collapsed-icons {
  position: absolute;
  inset: 0 0 0 auto;
  z-index: 3;
  display: flex;
  width: var(--left-rail-collapsed);
  padding: 14px 8px;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  overflow: hidden auto;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 250, 255, 0.94));
  border-right: 1px solid rgba(231, 233, 243, 0.85);
  transition: opacity 120ms ease, transform 160ms ease;
}

.palette-collapsed-icons button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  min-width: 32px;
  height: 32px;
  min-height: 32px;
  padding: 0;
  border: 1px solid rgba(106, 90, 249, 0.16);
  border-radius: 10px;
  background: #ffffff;
  color: #4f5775;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.04);
  cursor: pointer;
}

.palette-collapsed-icons button:hover,
.palette-collapsed-icons button:focus-visible {
  border-color: rgba(106, 90, 249, 0.44);
  background: var(--accent-soft);
  color: var(--accent-strong);
  outline: none;
}

.palette-panel {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--left-rail-open);
  height: 100%;
  max-width: calc(100vw - 32px);
  display: flex;
  flex-direction: column;
  padding: 18px 16px;
  overflow: hidden;
  background: var(--panel);
  border-right: 1px solid var(--line);
  transform: translateX(calc((var(--left-rail-open) - var(--left-rail-collapsed)) * -1));
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.palette-panel > * {
  opacity: 0;
  pointer-events: none;
  transition: opacity 90ms ease;
}

.left-rail:hover .palette-panel,
.left-rail:focus-within .palette-panel {
  overflow: hidden;
  transform: translateX(0);
  box-shadow: 16px 0 34px rgba(15, 23, 42, 0.08);
}

.left-rail:hover .palette-collapsed-icons,
.left-rail:focus-within .palette-collapsed-icons {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-8px);
}

.left-rail:hover .palette-panel > *,
.left-rail:focus-within .palette-panel > * {
  opacity: 1;
  pointer-events: auto;
}

.left-rail.palette-force-collapsed .palette-panel {
  overflow: hidden;
  transform: translateX(calc((var(--left-rail-open) - var(--left-rail-collapsed)) * -1));
  box-shadow: none;
}

.left-rail.palette-force-collapsed .palette-panel > * {
  opacity: 0;
  pointer-events: none;
}

.left-rail.palette-force-collapsed .palette-collapsed-icons {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.palette-search {
  position: relative;
  display: block;
  flex: 0 0 auto;
  margin-bottom: 14px;
}

.palette-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 2px;
}

.palette-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 0.95rem;
}

.palette-search input {
  padding-left: 36px;
}

.palette-group {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.palette-group:first-of-type {
  border-top: none;
  padding-top: 0;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  margin-bottom: 8px;
  background: #ffffff;
  color: var(--muted-strong);
  text-align: left;
}

.palette-item:last-child {
  margin-bottom: 0;
}

.palette-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  color: #5f6582;
  font-size: 0.92rem;
  flex: 0 0 18px;
}

.palette-context-menu {
  position: fixed;
  z-index: 90;
  display: grid;
  width: 188px;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #ffffff;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
}

.palette-context-menu[hidden] {
  display: none;
}

.palette-context-menu button {
  min-height: 36px;
  padding: 0 10px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.palette-context-menu button:hover,
.palette-context-menu button:focus-visible {
  background: var(--accent-soft);
  color: var(--accent-strong);
  outline: none;
}

@media (max-width: 820px) {
  .left-rail {
    position: static;
    z-index: auto;
    overflow: auto;
    border: none;
  }

  .palette-panel {
    position: static;
    width: auto;
    max-width: none;
    height: auto;
    overflow: visible;
    border-right: none;
    transform: none;
    box-shadow: none;
  }

  .palette-list {
    overflow: visible;
  }

  .palette-panel > * {
    opacity: 1;
    pointer-events: auto;
  }

  .palette-collapsed-icons {
    display: none;
  }
}