:host {
  display: flex;
  flex-direction: column;
  width: 220px;
  min-width: 220px;
  background: #1e1e2e;
  border-right: 1px solid #313244;
  padding: 16px 12px;
  gap: 4px;
  height: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px;
  margin: 2px;
  border-radius: 6px;
  text-decoration: none;
  color: #a6adc8;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 25px;
  transition: background 0.1s, color 0.1s;
}

.item:hover        { background: #313244; color: #cdd6f4; }
.item.active       { background: #313244; color: #89b4fa; }
.item.active .icon { color: #89b4fa; }

.icon {
  display: flex;
  align-items: center;
  color: #6c7086;
  flex-shrink: 0;
}

.item:hover .icon { color: #cdd6f4; }

.section-header {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #45475a;
  padding: 14px 12px 4px;
}

.separator {
  height: 1px;
  background: #313244;
  margin: 6px 4px;
}

/* ── Accordion group ────────────────────────────────────────────────────── */

.group { display: flex; flex-direction: column; }

.group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px;
  margin: 2px;
  border-radius: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #a6adc8;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 25px;
  transition: background 0.1s, color 0.1s;
  width: 100%;
  text-align: left;
}

.group-header:hover              { background: #313244; color: #cdd6f4; }
.group-header:hover .icon        { color: #cdd6f4; }
.group-header.has-active         { color: #89b4fa; }
.group-header.has-active .icon   { color: #89b4fa; }

.chevron {
  margin-left: auto;
  display: flex;
  align-items: center;
  color: #6c7086;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.chevron.open { transform: rotate(90deg); }

.group-children {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.2s ease;
}

.group-children.open { grid-template-rows: 1fr; }

.group-children > div { overflow: hidden; }

.item.child { padding-left: 36px; }