/* ============================================================
   sidebar.css — Project Tree & Wiki Sidebar Styles
   ============================================================ */

/* ── Projects View Layout ── */
.projects-view {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: radial-gradient(circle at 82% 0%, hsla(243, 70%, 55%, .1), transparent 34rem), var(--surface-bg);
}

.projects-main {
  flex: 1;
  overflow-y: auto;
  padding: 3.5rem var(--spacing-xl) 5rem;
  max-width: 980px;
  width: 100%;
  margin: 0 auto;
}

.projects-header {
  margin-bottom: 2.5rem;
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--surface-border);
}

.projects-header__title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.05;
}

.projects-header__subtitle {
  margin-top: .8rem;
  color: var(--text-secondary);
  font-size: .9375rem;
}

/* ── Toolbar ── */
.projects-toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  padding: .75rem;
  background: hsla(222, 20%, 12%, .72);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 28px hsla(0, 0%, 0%, .16);
}

.projects-searchbar {
  flex: 1;
  min-width: 200px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.toggle-label input[type="checkbox"] {
  appearance: none;
  width: 36px;
  height: 20px;
  border-radius: var(--radius-full);
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
  cursor: pointer;
  position: relative;
  transition: background var(--duration-fast), border-color var(--duration-fast);
  flex-shrink: 0;
}

.toggle-label input[type="checkbox"]::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: transform var(--duration-fast) var(--ease-default), background var(--duration-fast);
}

.toggle-label input[type="checkbox"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.toggle-label input[type="checkbox"]:checked::before {
  background: #fff;
  transform: translateX(16px);
}

/* ── Search Bar ── */
.searchbar {
  position: relative;
  display: flex;
  align-items: center;
}

.searchbar__icon {
  position: absolute;
  left: .75rem;
  width: 15px;
  height: 15px;
  stroke: var(--text-muted);
  stroke-width: 2;
  fill: none;
  pointer-events: none;
  transition: stroke var(--duration-fast);
}

.searchbar__input {
  width: 100%;
  height: 38px;
  padding: 0 2.25rem 0 2.25rem;
  font-family: var(--font-sans);
  font-size: .875rem;
  color: var(--text-primary);
  background: var(--surface-2);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast), background var(--duration-fast);
}

.searchbar__input::placeholder { color: var(--text-muted); }
.searchbar__input:focus {
  border-color: var(--color-primary);
  background: var(--surface-1);
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}
.searchbar__input:focus ~ .searchbar__icon { stroke: var(--color-primary); }

/* Clear button */
.searchbar__clear {
  position: absolute;
  right: .5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.searchbar__clear:hover { color: var(--text-primary); background: var(--surface-3); }
.searchbar__clear svg { width: 13px; height: 13px; stroke: currentColor; stroke-width: 2; fill: none; }

/* ── Project Tree ── */
.projects-tree-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  padding-bottom: var(--spacing-2xl);
}

.project-tree__group {
  background: transparent;
}

.project-tree__namespace {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: 0 .35rem .75rem;
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.project-tree__ns-icon {
  width: 13px;
  height: 13px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  flex-shrink: 0;
}

.project-tree__list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: .75rem;
}

.project-tree__item {
  min-width: 0;
  background: hsla(222, 20%, 12%, .8);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow: none;
  transition: background var(--duration-fast), border-color var(--duration-fast), box-shadow var(--duration-fast), transform var(--duration-fast);
}

.project-tree__item:hover { background: var(--surface-2); border-color: hsla(243, 80%, 62%, .5); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
.project-tree__item.is-active { background: var(--color-primary-dim); }

.project-tree__btn {
  display: flex;
  align-items: center;
  gap: .625rem;
  width: 100%;
  padding: 1.25rem 1.4rem;
  text-align: left;
  border-radius: 0;
  transition: none;
}

.project-tree__row { display: flex; align-items: center; gap: .35rem; }
.project-tree__row .project-tree__btn { flex: 1; min-width: 0; }
.project-tree__releases { flex-shrink: 0; margin-right: .65rem; padding: .3rem .5rem; border: 1px solid var(--surface-border); border-radius: var(--radius-sm); color: var(--text-secondary); font-size: .68rem; transition: color var(--duration-fast), border-color var(--duration-fast), background var(--duration-fast); }
.project-tree__releases:hover { color: var(--text-link); border-color: var(--color-primary); background: var(--color-primary-dim); }
.project-tree__support { flex-shrink: 0; margin-right: .65rem; padding: .3rem .5rem; border: 1px solid hsla(158, 64%, 42%, .45); border-radius: var(--radius-sm); color: var(--color-success); font-size: .68rem; transition: color var(--duration-fast), border-color var(--duration-fast), background var(--duration-fast); }
.project-tree__support:hover { color: #fff; border-color: var(--color-success); background: hsla(158, 64%, 42%, .2); }

.project-tree__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-size: .75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 5px 12px hsla(0, 0%, 0%, .2);
}

.project-tree__name {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.project-tree__badge {
  font-size: .65rem;
  font-weight: 600;
  padding: .1em .4em;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: .05em;
  flex-shrink: 0;
}

.project-tree__badge--no-wiki {
  background: hsla(0,0%,50%,.12);
  color: var(--text-muted);
}

.project-tree__empty {
  padding: var(--spacing-xl);
  text-align: center;
  color: var(--text-muted);
  font-size: .875rem;
}

@media (max-width: 640px) {
  .projects-main { padding: 2.5rem 1rem 4rem; }
  .project-tree__list { grid-template-columns: 1fr; }
  .project-tree__btn { padding: 1rem; }
}

/* Skeleton */
.project-tree__skeleton {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .875rem var(--spacing-md);
  border-bottom: 1px solid var(--surface-border);
}

@media (max-width: 720px) {
  .project-tree__list { grid-template-columns: 1fr; }
}

/* ── Wiki Layout ── */
.wiki-layout {
  display: grid;
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-areas:
    "topbar  topbar"
    "sidebar main";
  height: 100vh;
  overflow: hidden;
  transition: grid-template-columns var(--duration-normal) var(--ease-default);
}

.wiki-layout--sidebar-collapsed {
  grid-template-columns: 0 1fr;
}

.wiki-layout > .topbar {
  grid-area: topbar;
}

/* ── Wiki Sidebar ── */
.wiki-sidebar {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  background: var(--surface-1);
  border-right: 1px solid var(--surface-border);
  overflow: hidden;
  transition: width var(--duration-normal) var(--ease-default),
              opacity var(--duration-normal) var(--ease-default);
}

.wiki-layout--sidebar-collapsed .wiki-sidebar {
  width: 0;
  opacity: 0;
  pointer-events: none;
}

.wiki-sidebar__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: var(--sidebar-w);
  overflow: hidden;
}

.wiki-sidebar__search {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--surface-border);
  flex-shrink: 0;
}

.wiki-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm) 0;
}

/* ── Wiki Page List ── */
.wiki-page-list__list {
  list-style: none;
}

.wiki-page-list__list--depth-0 { /* top level */ }
.wiki-page-list__list--depth-1 { border-left: 2px solid var(--surface-border); margin-left: 1.25rem; }
.wiki-page-list__list--depth-2 { border-left: 2px solid var(--surface-border); margin-left: 1.875rem; }

.wiki-page-list__item {
  position: relative;
}

.wiki-page-list__btn {
  display: flex;
  align-items: center;
  gap: .5rem;
  width: 100%;
  padding: .4375rem .75rem;
  font-size: .8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: left;
  border-radius: 0;
  transition: color var(--duration-fast), background var(--duration-fast);
}

.wiki-page-list__btn:hover { color: var(--text-primary); background: var(--surface-2); }

.wiki-page-list__item.is-active > .wiki-page-list__btn {
  color: var(--color-primary);
  background: var(--color-primary-dim);
  font-weight: 600;
}

.wiki-page-list__icon {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 1.75;
  fill: none;
  flex-shrink: 0;
  opacity: .7;
}

.wiki-page-list__title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.wiki-page-list__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  color: var(--text-muted);
  font-size: .8125rem;
}

.wiki-page-list__empty svg {
  width: 32px;
  height: 32px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  opacity: .4;
}

.wiki-page-list__error {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: .5rem;
  font-size: .8125rem;
  color: var(--color-danger);
}

/* Skeleton */
.wiki-page-list__skeleton {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .4375rem .75rem;
  padding-left: calc(.75rem + var(--depth, 0) * 1.25rem);
}

/* ── Breadcrumb ── */
.wiki-breadcrumb {
  padding: .625rem var(--spacing-lg);
  border-bottom: 1px solid var(--surface-border);
  background: var(--surface-1);
  flex-shrink: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: .375rem;
  flex-wrap: wrap;
}

.breadcrumb__link {
  font-size: .8125rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color var(--duration-fast);
}
.breadcrumb__link:hover { color: var(--color-primary); text-decoration: none; }

.breadcrumb__sep {
  font-size: .75rem;
  color: var(--text-muted);
  opacity: .5;
}

.breadcrumb__current {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-primary);
}