/* 원본 왼쪽 메뉴의 표시만 다듬는다. 너비·본문 시작점·숨김·모바일 서랍과
 * 덮개 계층은 기존 스타일이 맡으며, JS가 사용하는 노드·선택·잠금은 바꾸지 않는다. */
#mainSidebar {
  --sidebar-ink: var(--ink, #202838);
  --sidebar-muted: #657187;
  --sidebar-soft: var(--surface-muted, #f4f6fa);
  --sidebar-accent: var(--purple, #7162df);
  --sidebar-selected: #efedfc;
  background: var(--surface, #fff);
  border-right-color: var(--line, #e8ebf0);
  color: var(--sidebar-ink);
  scrollbar-width: thin;
  scrollbar-color: #c5cbd6 transparent;
}

#mainSidebar .brand {
  gap: 9px;
  padding-bottom: 6px;
  padding-right: 38px;
  color: #30394e;
  font-size: 27px;
  letter-spacing: -1.2px;
}

#mainSidebar .brand-mark {
  flex: 0 0 31px;
  width: 31px;
  height: 31px;
  border-radius: 10px;
  background: var(--sidebar-accent);
  box-shadow: 0 3px 9px #7162df20;
}

#mainSidebar .brand-version {
  margin-top: 2px;
  color: var(--sidebar-muted);
  font-size: 11px;
  letter-spacing: .2px;
}

#mainSidebar .sidebar-hide {
  display: grid;
  place-items: center;
  width: 32px;
  min-height: 32px;
  padding: 0;
  border: 1px solid var(--line, #e8ebf0);
  border-radius: 9px;
  background: var(--surface, #fff);
  color: var(--sidebar-muted);
  line-height: 1;
}

#mainSidebar .workspace {
  flex-shrink: 0;
  gap: 10px;
  margin-top: 17px;
  margin-bottom: 12px;
  padding: 12px;
  border-color: var(--line, #e8ebf0);
  border-radius: var(--panel-radius, 10px);
  background: var(--sidebar-soft);
}

#mainSidebar .workspace > div,
#mainSidebar .user > div {
  flex: 1;
  min-width: 0;
}

#mainSidebar #workspaceName,
#mainSidebar #sidebarUserName {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

#mainSidebar .workspace small,
#mainSidebar .user small {
  color: var(--sidebar-muted);
  font-size: 11px;
  line-height: 1.5;
}

#mainSidebar .ws-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  min-width: 34px;
  min-height: 34px;
  padding: 7px;
  border: 1px solid #e1dcfa;
  background: #eeebfc;
  color: #6252bf;
}

#mainSidebar .nav {
  gap: 3px;
}

#mainSidebar .nav > button {
  min-width: 0;
  min-height: 40px;
  gap: 10px;
  padding: 9px 11px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: #566277;
  font-size: 13px;
  line-height: 1.5;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

#mainSidebar .nav-icon {
  flex: 0 0 22px;
  width: 22px;
  text-align: center;
  color: #7c879c;
  font-size: 17px;
  line-height: 1.4;
}

#mainSidebar .nav > button.active {
  border-color: #e6e0fc;
  background: var(--sidebar-selected);
  color: #5b48bc;
  box-shadow: inset 3px 0 0 var(--sidebar-accent);
  font-weight: 700;
}

#mainSidebar .nav > button.active .nav-icon {
  color: inherit;
}

#mainSidebar #workspaceTaskCount,
#mainSidebar .project-hierarchy-count {
  flex-shrink: 0;
  min-width: 23px;
  padding: 2px 6px;
  border-radius: 6px;
  background: #edf0f6;
  color: #59667d;
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

#mainSidebar .sidebar-group {
  margin-top: 13px;
}

#mainSidebar .sidebar-group > summary {
  min-height: 36px;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 7px;
  color: var(--sidebar-muted);
  font-size: 11px;
  font-weight: 650;
}

#mainSidebar .sidebar-group > summary .section-label {
  min-width: 0;
  align-items: center;
  color: inherit;
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .65px;
}

#mainSidebar .sidebar-group > summary::after {
  flex-shrink: 0;
  margin-left: 0;
  color: #8993a6;
  font-size: 13px;
}

#mainSidebar #addProject {
  flex-shrink: 0;
  min-width: 30px;
  min-height: 30px;
  margin: -4px 0;
  padding: 0;
  border: 1px solid var(--line, #e8ebf0);
  border-radius: 7px;
  background: var(--surface, #fff);
  color: var(--sidebar-accent);
  font-size: 19px;
  line-height: 1;
}

#mainSidebar #projectNav {
  min-width: 0;
  padding: 2px 3px 0;
}

#mainSidebar #projectNav > button[data-project=""] {
  min-height: 39px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: #526077;
  font-size: 12px;
  font-weight: 600;
}

#mainSidebar #projectNav > button[data-project=""].selected {
  border-color: #e5e0fa;
  background: var(--sidebar-selected);
  color: #5b48bc;
}

#mainSidebar .project-navigation-controls {
  gap: 7px;
  margin: 9px 0 8px;
}

#mainSidebar .project-navigation-controls input,
#mainSidebar .project-navigation-controls select,
#mainSidebar .project-navigation-controls button {
  min-height: 36px;
  border-color: #dce2ec;
  border-radius: 8px;
  color: #4f5f78;
  font-size: 12px;
}

#mainSidebar .project-navigation-controls input {
  padding: 9px 11px;
  background: var(--surface, #fff);
}

#mainSidebar .project-navigation-controls input::placeholder {
  color: #7a879c;
}

#mainSidebar .project-navigation-controls button {
  width: auto;
  padding: 7px 11px;
  background: var(--sidebar-soft);
  white-space: nowrap;
}

#mainSidebar #projectNavigationStatus {
  margin: 8px 1px 10px;
  color: var(--sidebar-muted);
  font-size: 10px;
  line-height: 1.6;
}

/* 긴 프로젝트명은 자르지 않는다. 트리만 별도 스크롤하며 검색·페이지와
 * 다른 메뉴 그룹에는 고정 높이나 새 스크롤 영역을 만들지 않는다. */
#mainSidebar .project-hierarchy-tree {
  padding: 2px 3px 2px 0;
  max-height: clamp(220px, 38vh, 520px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: #c5cbd6 transparent;
  scroll-padding-block: 10px;
}

#mainSidebar .project-hierarchy-tree ul {
  margin-left: 12px;
  padding-left: 7px;
  border-left-color: #e0e5ee;
}

#mainSidebar .project-hierarchy-row {
  align-items: center;
  min-width: 0;
  margin: 2px 0;
  border-radius: 8px;
}

#mainSidebar .project-hierarchy-select {
  flex: 1 1 0;
  min-width: 0;
  width: auto;
  min-height: 40px;
  gap: 7px;
  padding: 8px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: #58667c;
  font-size: 12px;
}

#mainSidebar .project-hierarchy-label {
  flex: 1;
  min-width: 0;
  color: inherit;
  font-size: 12px;
  line-height: 1.65;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

#mainSidebar .project-hierarchy-badge {
  flex-shrink: 0;
  padding: 2px 4px;
  border-radius: 4px;
  background: #f0f2f7;
  color: #657187;
  font-size: 9px;
  line-height: 1.5;
  opacity: 1;
}

#mainSidebar .project-hierarchy-select.selected {
  border-color: #e4def9;
  background: var(--sidebar-selected);
  color: #5b48bc;
  box-shadow: inset 3px 0 0 var(--sidebar-accent);
  font-weight: 650;
}

#mainSidebar .project-hierarchy-toggle {
  flex: 0 0 28px;
  width: 28px;
  min-height: 36px;
  padding: 0;
  border-radius: 7px;
  color: #78859b;
  font-size: 16px;
}

#mainSidebar .project-navigation-pagination {
  gap: 4px;
  margin: 10px 0 2px;
}

#mainSidebar .project-navigation-pagination button {
  width: auto;
  min-width: 29px;
  min-height: 30px;
  padding: 5px 7px;
  border-color: var(--line, #e8ebf0);
  border-radius: 6px;
  color: #657187;
  font-size: 10px;
}

#mainSidebar .project-navigation-pagination [aria-current="page"] {
  border-color: var(--sidebar-accent);
  background: var(--sidebar-accent);
  color: #fff;
  font-weight: 700;
}

#mainSidebar .sidebar-foot {
  flex-shrink: 0;
  margin-top: auto;
  padding-top: 16px;
}

#mainSidebar .user {
  gap: 10px;
  margin-top: 12px;
  padding: 12px 9px 0;
  border-top: 1px solid var(--line, #e8ebf0);
}

#mainSidebar .user .avatar {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  background: #eeebfc;
  color: #6655bc;
  font-size: 12px;
}

/* 색상과 초점만 보완하며 disabled·hidden·drawer 상태를 해제하지 않는다. */
#mainSidebar button:hover:not(:disabled),
#mainSidebar .sidebar-group > summary:hover {
  background-color: var(--sidebar-soft);
  color: #4f4785;
}

#mainSidebar .nav > button.active:hover,
#mainSidebar .project-hierarchy-select.selected:hover,
#mainSidebar #projectNav > button[data-project=""].selected:hover {
  background-color: #e9e4fc;
}

#mainSidebar .project-navigation-pagination [aria-current="page"]:hover:not(:disabled) {
  background-color: var(--sidebar-accent);
  color: #fff;
}

#mainSidebar button:focus-visible,
#mainSidebar input:focus-visible,
#mainSidebar select:focus-visible,
#mainSidebar summary:focus-visible {
  outline: 2px solid var(--sidebar-accent);
  outline-offset: 2px;
}

#mainSidebar .project-hierarchy-tree button:focus-visible {
  outline-offset: -2px;
}

#mainSidebar button:disabled,
#mainSidebar input:disabled,
#mainSidebar select:disabled {
  opacity: .55;
  cursor: not-allowed;
}

@media (max-width: 720px) {
  #mainSidebar .sidebar-hide {
    width: 44px;
    min-height: 44px;
  }

  #mainSidebar .brand {
    padding-right: 46px;
  }

  #mainSidebar .nav > button,
  #mainSidebar .sidebar-group > summary,
  #mainSidebar #addProject,
  #mainSidebar #projectNav > button[data-project=""],
  #mainSidebar .project-navigation-controls input,
  #mainSidebar .project-navigation-controls select,
  #mainSidebar .project-navigation-controls button,
  #mainSidebar .project-hierarchy-select,
  #mainSidebar .project-navigation-pagination button {
    min-height: 44px;
  }

  #mainSidebar #addProject,
  #mainSidebar .project-navigation-pagination button {
    min-width: 44px;
  }

  #mainSidebar .project-hierarchy-toggle {
    flex: 0 0 44px;
    width: 44px;
    min-height: 44px;
  }

  #mainSidebar .project-hierarchy-tree {
    max-height: 40vh;
  }

  #mainSidebar .project-hierarchy-tree ul {
    margin-left: 8px;
    padding-left: 5px;
  }

  #mainSidebar .project-hierarchy-badge {
    padding: 2px 3px;
    font-size: 9px;
  }
}