:root {
  --sidebar-w-collapsed: 64px;
}

.sidebar__collapse-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #25b7a7;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}

.sidebar__collapse-btn:hover {
  background: rgba(37, 183, 167, 0.1);
  color: #1f9a8c;
}

.sidebar__collapse-btn svg {
  width: 18px;
  height: 18px;
  display: block;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.app-shell.is-sidebar-collapsed {
  grid-template-columns: var(--sidebar-w-collapsed) 1fr;
}

/* Brand: chevron + mark in one row, fully visible (no clip) */
.app-shell.is-sidebar-collapsed .sidebar__brand {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 10px 4px;
  height: auto;
  min-height: 52px;
  max-height: none;
  overflow: visible;
}

.app-shell.is-sidebar-collapsed .sidebar__collapse-btn {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
}

.app-shell.is-sidebar-collapsed .sidebar__collapse-btn svg {
  width: 16px;
  height: 16px;
}

.app-shell.is-sidebar-collapsed .sidebar__brand-split {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  min-width: 0;
  flex: 0 0 auto;
}

.app-shell.is-sidebar-collapsed .sidebar__brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  overflow: hidden;
  flex: 0 0 28px;
}

.app-shell.is-sidebar-collapsed .sidebar__brand-logo img {
  height: 28px;
  width: 28px;
  max-width: 28px;
  object-fit: contain;
  object-position: left center;
  display: block;
}

.app-shell.is-sidebar-collapsed .sidebar__brand-wordmark {
  display: none !important;
}

.app-shell.is-sidebar-collapsed .sidebar__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  line-height: 0;
  overflow: visible;
}

.app-shell.is-sidebar-collapsed .sidebar__brand-mark img,
.app-shell.is-sidebar-collapsed .sidebar__logo-svg--mark,
.app-shell.is-sidebar-collapsed .sidebar__brand-mark .sidebar__logo-svg {
  display: block;
  width: 28px !important;
  height: 28px !important;
  max-width: 28px;
  max-height: 28px;
}

.app-shell.is-sidebar-collapsed .sidebar__toolbar {
  flex-direction: column;
  align-items: center;
  margin: 8px 6px 6px;
  gap: 8px;
}

.app-shell.is-sidebar-collapsed .sidebar__search-btn {
  display: none !important;
}

.app-shell.is-sidebar-collapsed .sidebar__create-btn {
  flex: 0 0 36px;
  width: 36px;
  min-width: 36px;
  height: 36px;
  padding: 0;
  justify-content: center;
  border-radius: 999px;
}

.app-shell.is-sidebar-collapsed .sidebar__create-btn > span:not(.sidebar__create-icon) {
  display: none;
}

.app-shell.is-sidebar-collapsed .sidebar__item {
  justify-content: center;
  padding: 10px 6px;
  gap: 0;
  background: transparent;
}

.app-shell.is-sidebar-collapsed .sidebar__item:hover {
  background: #f5f8fa;
}

.app-shell.is-sidebar-collapsed .sidebar__item.is-active {
  background: #f0f4f6;
  color: #334155;
  font-weight: 600;
}

.app-shell.is-sidebar-collapsed .sidebar__item > span:not(.sidebar__icon) {
  display: none;
}

.app-shell.is-sidebar-collapsed .sidebar__item::before {
  top: 8px;
  bottom: 8px;
  width: 2px;
}

.app-shell.is-sidebar-collapsed .sidebar__icon {
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0;
}

.app-shell.is-sidebar-collapsed .sidebar__icon img,
.app-shell.is-sidebar-collapsed .sidebar__item:hover .sidebar__icon img,
.app-shell.is-sidebar-collapsed .sidebar__item.is-active .sidebar__icon img {
  filter: none !important;
  opacity: 1;
}

.app-shell.is-sidebar-collapsed .sidebar__collapse-btn .sidebar__collapse-icon--expand {
  display: block;
}

.app-shell.is-sidebar-collapsed .sidebar__collapse-btn .sidebar__collapse-icon--collapse {
  display: none;
}

.sidebar__collapse-btn .sidebar__collapse-icon--expand {
  display: none;
}

.sidebar__collapse-btn .sidebar__collapse-icon--collapse {
  display: block;
}

@media (max-width: 900px) {
  .sidebar__collapse-btn {
    display: none;
  }

  .app-shell.is-sidebar-collapsed {
    grid-template-columns: 1fr;
  }
}