:root {
  --sidebar-width: 260px;
  --header-height: 40px;
}

.header-bar .navbar {
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
  position: relative;
}

.icon-btn {
  width: 31px;
  height: 31px;
  border: 0;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: transparent;
  cursor: pointer;
}

.icon-btn:hover {
  background: var(--bs-tertiary-bg);
}

.toggle-sidebar .when-closed {
  display: none;
}

#sidebarToggle:checked ~ header .toggle-sidebar .when-open {
  display: none;
}

#sidebarToggle:checked ~ header .toggle-sidebar .when-closed {
  display: inline;
}

.header-title {
  font-weight: 700;
  letter-spacing: 0.01em;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  pointer-events: none;
  user-select: none;
}

.app-shell {
  flex: 1;
  display: flex;
  min-height: 0;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--bs-tertiary-bg);
  padding: 1rem;
  transition: width 0.2s ease, padding 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  overflow: auto;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
}

.sidebar-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

#sidebarToggle:checked ~ .app-shell .sidebar {
  width: 0;
  padding: 0;
  border: none !important;
  overflow: hidden;
}

#sidebarToggle:checked ~ .app-shell .sidebar .sidebar-inner {
  opacity: 0;
  pointer-events: none;
}

.project-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.project-entry {
  border: 1px solid transparent;
  border-radius: 0.65rem;
  background: var(--bs-body-bg);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.20rem 0.75rem;
  flex: 1 1 auto;
  background: transparent;
  border: none;
}

.project-header:hover {
  background: var(--bs-tertiary-bg);
}

.project-title {
  margin: 0;
  font-weight: 600;
  font-size: 0.95rem;
}

.project-panels {
  padding: 0 0.75rem 0.75rem;
}

.project-panels .list-group-item {
  border: 0;
  padding: 0.35rem 0;
}

.main-area {
  flex: 1;
  overflow: hidden;
  background: var(--bs-body-bg);
}

.card-stage {
  padding: 0.5rem 1rem 1rem;
  overflow: auto;
  flex: 1;
}

.card-grid .card {
  height: 100%;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.card-grid .card:hover {
  transform: translateY(-2px);
  box-shadow: var(--bs-box-shadow);
}

.card-grid .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.card-grid .card-title {
  margin-bottom: 0.25rem;
}

.card-grid .card-text {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0;
}

.card-trigger {
  cursor: pointer;
}

.ghost-btn {
  background: transparent;
  border: 1px solid transparent;
  color: inherit;
  transition: background-color 0.15s ease;
}

.btn.ghost-btn {
  background-color: transparent !important;
}

.btn.ghost-btn:hover {
  background-color: var(--bs-tertiary-bg) !important;
  border-color: transparent !important;
}

.btn.ghost-btn:active,
.btn.ghost-btn:active:focus {
  background-color: var(--bs-secondary-bg) !important;
  border-color: transparent !important;
  box-shadow: none !important;
  color: inherit;
}

.ghost-btn:focus,
.ghost-btn:active:focus {
  box-shadow: none;
  border-color: transparent;
}

@media (max-width: 991.98px) {
  .app-shell {
    flex-direction: column;
    position: relative;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    z-index: 1040;
    max-width: 100%;
    transform: translateX(-100%);
    box-shadow: var(--bs-box-shadow);
  }

  #sidebarToggle:not(:checked) ~ .app-shell .sidebar {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  #sidebarToggle:checked ~ .app-shell .sidebar {
    width: var(--sidebar-width);
    padding: 0;
    border: none !important;
    overflow: hidden;
    pointer-events: none;
    visibility: hidden;
  }
}

@media (max-width: 767.98px) {
  .sidebar {
    width: 100%;
  }

  .card-stage {
    padding: 0.25rem 0.75rem 0.75rem;
  }
}