/* Concord: native reviewed-knowledge workspace beneath the PowerAI shell. */

.concord-main {
  --cc-bg: #f5f6f2;
  --cc-nav: #eff1ec;
  --cc-paper: #fffefa;
  --cc-ink: #20251f;
  --cc-muted: #6e776f;
  --cc-faint: #939a93;
  --cc-line: #dfe2dc;
  --cc-line-soft: #eaebe6;
  --cc-accent: #315f57;
  --cc-accent-strong: #254c46;
  --cc-accent-soft: #dceae5;
  height: calc(100vh - 56px);
  min-width: 0;
  overflow: hidden;
  background: var(--cc-bg);
  color: var(--cc-ink);
}

.concord-main *,
.concord-main *::before,
.concord-main *::after { box-sizing: border-box; }

.concord-main button,
.concord-main input,
.concord-main textarea,
.concord-main summary { font: inherit; }

.concord-shell,
.concord-content,
.concord-page-layout { width: 100%; height: 100%; min-width: 0; min-height: 0; }

.concord-page-layout {
  display: grid;
  grid-template-columns: var(--concord-tree-width, 288px) 5px minmax(0, 1fr);
}

/* Navigator */

.concord-navigator {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  overflow: hidden;
  background: var(--cc-nav);
}

.concord-navigator.has-search-results {
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
}

.concord-navigator-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 13px 12px 15px;
}

.concord-navigator-brand {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--cc-ink);
  text-align: left;
  cursor: pointer;
}

.concord-navigator-mark {
  width: 34px;
  height: 34px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 10px;
  background: var(--cc-accent-soft);
  color: var(--cc-accent);
}

.concord-navigator-mark .shell-icon { width: 18px; height: 18px; }
.concord-navigator-brand > span:last-child { min-width: 0; display: grid; gap: 1px; }
.concord-navigator-brand strong { overflow: hidden; font-size: 13.5px; font-weight: 720; text-overflow: ellipsis; white-space: nowrap; }
.concord-navigator-brand small { color: var(--cc-muted); font-size: 10px; }

.concord-add-menu { position: relative; flex: 0 0 auto; }

.concord-navigator-create {
  width: 33px;
  height: 33px;
  display: grid;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 9px;
  background: var(--cc-ink);
  color: #fff;
  cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}

.concord-navigator-create:hover { background: var(--cc-accent); transform: translateY(-1px); }
.concord-navigator-create .shell-icon { width: 16px; height: 16px; }

.concord-add-dropdown {
  position: absolute;
  z-index: 20;
  top: calc(100% + 7px);
  right: 0;
  min-width: 178px;
  display: grid;
  gap: 2px;
  padding: 6px;
  border: 1px solid #d5d9d2;
  border-radius: 11px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(28, 35, 30, .16);
}

.concord-add-dropdown button {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--cc-ink);
  text-align: left;
  cursor: pointer;
}

.concord-add-dropdown button:hover { background: #eef3f0; }
.concord-add-dropdown .shell-icon { width: 16px; height: 16px; color: var(--cc-accent); }
.concord-add-dropdown span { font-size: 12px; font-weight: 620; }

.concord-search-form {
  display: grid;
  grid-template-columns: 17px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  margin: 0 12px 11px;
  padding: 0 5px 0 11px;
  border: 1px solid #d7dbd4;
  border-radius: 10px;
  background: rgba(255, 255, 252, .72);
  color: #879087;
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}

.concord-search-form:focus-within {
  border-color: #90aaa1;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(49, 95, 87, .08);
}

.concord-search-form > .shell-icon { width: 16px; height: 16px; }
.concord-search-form input { width: 100%; min-width: 0; padding: 0; border: 0; outline: 0; background: transparent; color: var(--cc-ink); font-size: 12px; }
.concord-search-form input::placeholder { color: #8b938b; }

.concord-search-clear {
  width: 24px;
  height: 24px;
  display: grid;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--cc-muted);
  cursor: pointer;
}

.concord-search-clear:hover { background: #e6e9e3; color: var(--cc-ink); }
.concord-search-clear .shell-icon { width: 13px; height: 13px; }

.concord-left-tabs {
  display: flex;
  gap: 13px;
  margin: 0 15px;
  padding: 0 0 8px;
  border-bottom: 1px solid var(--cc-line);
}

.concord-left-tabs button {
  position: relative;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 2px 0;
  border: 0;
  background: transparent;
  color: var(--cc-muted);
  font-size: 10.5px;
  font-weight: 620;
  cursor: pointer;
}

.concord-left-tabs button[aria-selected="true"] { color: var(--cc-ink); }
.concord-left-tabs button[aria-selected="true"]::after { content: ""; position: absolute; right: 0; bottom: -9px; left: 0; height: 2px; background: var(--cc-accent); }
.concord-left-tabs button span { color: var(--cc-faint); font-size: 9px; }

.concord-left-panel { min-height: 0; overflow: hidden; }

.concord-tree,
.concord-search-results {
  height: 100%;
  min-height: 0;
  overflow-y: auto;
  padding: 3px 8px 18px;
  scrollbar-width: thin;
  scrollbar-color: #c7ccc5 transparent;
}

.concord-tree-node { display: grid; gap: 0; }

.concord-tree-row {
  min-width: 0;
  display: grid;
  grid-template-columns: 21px minmax(0, 1fr);
  align-items: center;
  padding-left: calc(var(--depth, 0) * 15px);
}

.concord-tree-toggle,
.concord-tree-toggle-spacer {
  width: 21px;
  height: 32px;
}

.concord-tree-toggle {
  display: grid;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: #899188;
  cursor: pointer;
}

.concord-tree-toggle:not(:disabled):hover { background: #dfe3dd; color: var(--cc-ink); }
.concord-tree-toggle:disabled { cursor: default; opacity: .25; }
.concord-tree-toggle .shell-icon { width: 13px; height: 13px; }

.concord-tree-item {
  min-width: 0;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 7px 7px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #414941;
  text-align: left;
  cursor: pointer;
}

.concord-tree-item:hover { background: rgba(219, 224, 217, .72); }
.concord-tree-item.active { background: var(--cc-accent-soft); color: #244f47; }

.concord-tree-icon { width: 18px; height: 18px; display: grid; place-items: center; color: #60766f; }
.concord-tree-icon.folder { color: #7c7049; }
.concord-tree-icon .shell-icon { width: 15px; height: 15px; }

.concord-tree-label {
  min-width: 0;
  display: -webkit-box;
  overflow: hidden;
  font-size: 11.5px;
  font-weight: 540;
  line-height: 1.3;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.concord-tree-item.active .concord-tree-label { font-weight: 680; }

.concord-navigator-footer {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 12px 8px 15px;
  border-top: 1px solid var(--cc-line);
  color: var(--cc-muted);
}

.concord-navigator-footer > span { display: flex; align-items: center; gap: 6px; font-size: 9.5px; }
.concord-navigator-footer i { width: 16px; height: 16px; display: grid; place-items: center; border-radius: 50%; background: #dbece3; color: #3b7566; font-size: 9px; font-style: normal; }
.concord-navigator-footer button { width: 27px; height: 27px; display: grid; padding: 0; place-items: center; border: 0; border-radius: 7px; background: transparent; color: var(--cc-muted); cursor: pointer; }
.concord-navigator-footer button:hover { background: #dfe3dd; color: var(--cc-ink); }
.concord-navigator-footer .shell-icon { width: 14px; height: 14px; }

.concord-tree-empty,
.concord-search-state {
  display: grid;
  justify-items: center;
  gap: 7px;
  padding: 38px 18px;
  color: var(--cc-muted);
  text-align: center;
}

.concord-tree-empty > span,
.concord-search-state-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; background: #e1e6e1; color: var(--cc-accent); }
.concord-tree-empty strong,
.concord-search-state strong { color: var(--cc-ink); font-size: 12px; }
.concord-tree-empty p,
.concord-search-state p { margin: 0; font-size: 10.5px; line-height: 1.5; }
.concord-tree-empty .secondary-button { margin-top: 5px; font-size: 10.5px; }

.concord-search-results { display: grid; align-content: start; gap: 5px; }
.concord-search-heading { display: flex; justify-content: space-between; padding: 7px 5px 4px; color: var(--cc-muted); font-size: 9.5px; }
.concord-search-heading strong { font-size: inherit; }

.concord-search-result {
  width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: 27px minmax(0, 1fr);
  gap: 3px 8px;
  padding: 9px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--cc-ink);
  text-align: left;
  cursor: pointer;
}

.concord-search-result:hover { border-color: #d3d8d1; background: rgba(255,255,252,.72); }
.concord-search-result-icon { grid-row: 1 / 4; width: 27px; height: 27px; display: grid; place-items: center; border-radius: 7px; background: var(--cc-accent-soft); color: var(--cc-accent); }
.concord-search-result-icon .shell-icon { width: 14px; height: 14px; }
.concord-search-title { min-width: 0; display: flex; align-items: center; gap: 6px; }
.concord-search-title strong { min-width: 0; overflow: hidden; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.concord-search-title code { flex: 0 0 auto; color: var(--cc-faint); font-size: 8.5px; }
.concord-search-result p { display: -webkit-box; margin: 0; overflow: hidden; color: #606960; font-size: 10px; line-height: 1.4; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.concord-search-path { overflow: hidden; color: var(--cc-muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.concord-search-result mark { background: #e8efa8; color: inherit; }
.concord-search-spinner { width: 21px; height: 21px; border: 2px solid #d3d8d1; border-top-color: var(--cc-accent); border-radius: 50%; animation: concord-spin .8s linear infinite; }

@keyframes concord-spin { to { transform: rotate(360deg); } }

.concord-splitter { position: relative; background: var(--cc-line); cursor: col-resize; }
.concord-splitter::after { content: ""; position: absolute; top: 50%; left: 2px; width: 1px; height: 34px; background: transparent; transform: translateY(-50%); }
.concord-splitter:hover,
.concord-page-layout.resizing .concord-splitter { background: #cbd2cb; }
.concord-splitter:hover::after { background: #81988f; }

/* Document */

.concord-detail-panel,
.concord-detail { min-width: 0; min-height: 0; height: 100%; overflow: hidden; padding: 0; background: var(--cc-paper); }

.concord-document { height: 100%; min-width: 0; display: grid; grid-template-rows: 50px minmax(0, 1fr); }

.concord-document-toolbar {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 16px 0 18px;
  border-bottom: 1px solid var(--cc-line);
  background: rgba(252, 252, 248, .96);
}

.concord-breadcrumbs { min-width: 0; display: flex; align-items: center; gap: 1px; overflow: hidden; }
.concord-breadcrumbs button,
.concord-breadcrumbs strong { min-width: 0; max-width: 190px; overflow: hidden; padding: 5px 6px; border: 0; border-radius: 6px; background: transparent; color: var(--cc-muted); font-size: 10.5px; font-weight: 540; text-overflow: ellipsis; white-space: nowrap; }
.concord-breadcrumbs button { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.concord-breadcrumbs button:hover { background: #eceee9; color: var(--cc-ink); }
.concord-breadcrumbs strong { color: #3d453e; font-weight: 650; }
.concord-breadcrumbs .shell-icon { width: 13px; height: 13px; }
.concord-breadcrumb-divider { display: grid; flex: 0 0 auto; place-items: center; color: #adb2ac; }
.concord-breadcrumb-divider .shell-icon { width: 11px; height: 11px; }

.concord-document-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 5px; }

.concord-toolbar-action {
  min-height: 33px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #59635b;
  font-size: 10.5px;
  font-weight: 620;
  cursor: pointer;
}

.concord-toolbar-action:hover { background: #eceee9; color: var(--cc-ink); }
.concord-toolbar-action.primary { border-color: #2c5a52; background: var(--cc-accent); color: #fff; }
.concord-toolbar-action.primary:hover { background: var(--cc-accent-strong); }
.concord-toolbar-action .shell-icon { width: 14px; height: 14px; }

.concord-page-menu { position: relative; }
.concord-page-menu summary { width: 33px; height: 33px; display: grid; place-items: center; border-radius: 8px; color: var(--cc-muted); cursor: pointer; list-style: none; }
.concord-page-menu summary::-webkit-details-marker { display: none; }
.concord-page-menu summary:hover,
.concord-page-menu[open] summary { background: #eceee9; color: var(--cc-ink); }
.concord-page-menu summary span { transform: translateY(-2px); font-size: 14px; font-weight: 700; letter-spacing: .08em; }
.concord-page-menu > div { position: absolute; z-index: 30; top: calc(100% + 7px); right: 0; min-width: 166px; display: grid; gap: 2px; padding: 6px; border: 1px solid #d6dad3; border-radius: 10px; background: #fff; box-shadow: 0 16px 44px rgba(29, 35, 30, .16); }
.concord-page-menu button { display: flex; align-items: center; gap: 9px; padding: 8px 9px; border: 0; border-radius: 7px; background: transparent; color: var(--cc-ink); font-size: 10.5px; text-align: left; cursor: pointer; }
.concord-page-menu button:hover { background: #eff2ed; }
.concord-page-menu button.danger { color: #a14b41; }
.concord-page-menu button.danger:hover { background: #fff1ef; }
.concord-page-menu button svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; }

.concord-document-scroll { min-height: 0; overflow-y: auto; background: var(--cc-paper); }

.concord-article {
  width: min(780px, calc(100% - 48px));
  min-height: 100%;
  margin: 0 auto;
  padding: clamp(58px, 8vh, 88px) 0 84px;
}

.concord-article-heading { padding-bottom: 31px; border-bottom: 1px solid var(--cc-line-soft); }

.concord-article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 13px;
  color: var(--cc-accent);
  font-size: 10.5px;
  font-weight: 650;
}

.concord-article-kicker .shell-icon { width: 15px; height: 15px; }

.concord-article-heading h1 {
  max-width: 740px;
  margin: 0;
  color: #1f241f;
  font-size: clamp(34px, 4vw, 47px);
  font-weight: 660;
  letter-spacing: -.042em;
  line-height: 1.08;
}

.concord-article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 7px 16px; margin-top: 17px; color: var(--cc-muted); font-size: 10.5px; }
.concord-article-meta > span:not(.concord-reviewed-badge) + span:not(.concord-reviewed-badge)::before { content: "·"; margin-right: 16px; color: #b0b5ae; }

.concord-reviewed-badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 7px; border: 1px solid #c8ddd4; border-radius: 999px; background: #eef7f3; color: #326b5c; font-size: 9.5px; font-weight: 690; }
.concord-reviewed-badge i { width: 13px; height: 13px; display: grid; place-items: center; border-radius: 50%; background: #5d9481; color: #fff; font-size: 8px; font-style: normal; }

.concord-content-panel { padding-top: 35px; }

.concord-preview {
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #303730;
  font-size: 15px;
  line-height: 1.76;
  overflow-wrap: anywhere;
}

.concord-preview > :first-child { margin-top: 0; }
.concord-preview h1,
.concord-preview h2,
.concord-preview h3,
.concord-preview h4 { color: #252b26; line-height: 1.25; letter-spacing: -.025em; }
.concord-preview h1 { margin: 1.5em 0 .5em; font-size: 29px; }
.concord-preview h2 { margin: 1.8em 0 .55em; font-size: 22px; }
.concord-preview h3 { margin: 1.65em 0 .5em; font-size: 17px; }
.concord-preview h4 { margin: 1.5em 0 .45em; font-size: 14px; }
.concord-preview p { margin: 0 0 1.15em; }
.concord-preview ul,
.concord-preview ol { margin: .6em 0 1.2em; padding-left: 23px; }
.concord-preview li { margin: .3em 0; }
.concord-preview a { color: var(--cc-accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
.concord-preview code { padding: 2px 5px; border-radius: 5px; background: #eef0ec; font-family: "SFMono-Regular", Consolas, monospace; font-size: .88em; }
.concord-preview blockquote { margin: 1.4em 0; padding: 10px 15px; border-left: 3px solid #8ba79e; background: #f2f6f3; color: #55625a; }
.concord-preview pre { max-width: 100%; overflow-x: auto; padding: 16px; border-radius: 9px; background: #202722; color: #eef3ee; }
.concord-preview pre code { padding: 0; background: transparent; color: inherit; }
.concord-preview hr { margin: 2em 0; border: 0; border-top: 1px solid var(--cc-line); }

.concord-preview .markdown-table-wrap { width: 100%; margin: 1.5em 0; overflow-x: auto; border: 1px solid var(--cc-line); border-radius: 9px; }
.concord-preview table { width: 100%; min-width: 620px; border-collapse: collapse; background: #fff; font-size: 12px; line-height: 1.45; }
.concord-preview th,
.concord-preview td { padding: 9px 11px; border-right: 1px solid var(--cc-line-soft); border-bottom: 1px solid var(--cc-line-soft); vertical-align: top; }
.concord-preview th:last-child,
.concord-preview td:last-child { border-right: 0; }
.concord-preview tbody tr:last-child td { border-bottom: 0; }
.concord-preview th { background: #f1f3ef; color: #39413a; font-weight: 680; }

.concord-source-view { display: grid; gap: 10px; }
.concord-source-view > div { display: flex; align-items: center; justify-content: space-between; color: var(--cc-muted); font-size: 10px; }
.concord-source-view > div span { font-weight: 650; }
.concord-source-view > div button { padding: 5px 8px; border: 0; border-radius: 6px; background: #eef0ec; color: var(--cc-accent); font-size: 9.5px; font-weight: 650; cursor: pointer; }
.concord-markdown-source { max-height: none; overflow: auto; margin: 0; padding: 20px; border: 0; border-radius: 10px; background: #202722; color: #eef3ee; font-family: "SFMono-Regular", Consolas, monospace; font-size: 11.5px; line-height: 1.65; white-space: pre-wrap; }

.concord-article-footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 54px;
  padding-top: 17px;
  border-top: 1px solid var(--cc-line-soft);
  color: var(--cc-faint);
  font-size: 9.5px;
}

.concord-article-footer span { max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.concord-article-footer button { display: inline-flex; align-items: center; gap: 5px; margin-left: auto; padding: 4px 0; border: 0; background: transparent; color: var(--cc-muted); font-size: 9.5px; cursor: pointer; }
.concord-article-footer button:hover { color: var(--cc-accent); }
.concord-article-footer button svg { width: 12px; height: 12px; fill: none; stroke: currentColor; stroke-width: 2; }

/* Folders */

.concord-folder-content { display: grid; gap: 18px; padding-top: 32px; }
.concord-folder-actions { display: flex; gap: 7px; }
.concord-folder-actions button { min-height: 34px; display: inline-flex; align-items: center; gap: 6px; border-radius: 8px; font-size: 10.5px; }
.concord-quiet-action { padding: 0 10px; border: 1px solid var(--cc-line); background: #fff; color: var(--cc-ink); cursor: pointer; }
.concord-quiet-action:hover { background: #f1f3ef; }

.concord-folder-list { overflow: hidden; border: 1px solid var(--cc-line); border-radius: 10px; }
.concord-folder-list-heading,
.concord-folder-list > button { display: grid; grid-template-columns: 31px minmax(0, 1fr) 100px 16px; align-items: center; gap: 10px; }
.concord-folder-list-heading { padding: 8px 12px; border-bottom: 1px solid var(--cc-line); background: #f2f4f0; color: var(--cc-muted); font-size: 9px; font-weight: 650; text-transform: uppercase; }
.concord-folder-list-heading span:first-child { grid-column: 1 / 3; }
.concord-folder-list > button { width: 100%; padding: 10px 12px; border: 0; border-bottom: 1px solid var(--cc-line-soft); background: transparent; color: var(--cc-ink); text-align: left; cursor: pointer; }
.concord-folder-list > button:last-child { border-bottom: 0; }
.concord-folder-list > button:hover { background: #f4f6f2; }
.concord-folder-item-icon { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 7px; background: var(--cc-accent-soft); color: var(--cc-accent); }
.concord-folder-item-icon.folder { background: #efe9d5; color: #74642f; }
.concord-folder-item-icon .shell-icon { width: 14px; height: 14px; }
.concord-folder-list strong { overflow: hidden; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.concord-folder-list small { color: var(--cc-muted); font-size: 9.5px; text-align: right; }
.concord-folder-list > button > .shell-icon { width: 12px; height: 12px; color: #a0a59e; }
.concord-folder-empty { display: grid; justify-items: center; gap: 7px; padding: 46px 20px; border: 1px dashed #d5d9d2; border-radius: 10px; color: var(--cc-muted); text-align: center; }
.concord-folder-empty > span { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 11px; background: #efe9d5; color: #74642f; }
.concord-folder-empty strong { color: var(--cc-ink); font-size: 12px; }
.concord-folder-empty p { margin: 0; font-size: 10px; }

/* Workspace home */

.concord-overview { height: 100%; overflow-y: auto; padding: clamp(58px, 9vh, 96px) clamp(30px, 8vw, 112px) 72px; background: var(--cc-bg); }
.concord-overview > * { width: min(840px, 100%); margin-inline: auto; }
.concord-overview-heading { padding-bottom: 31px; border-bottom: 1px solid var(--cc-line); }
.concord-overview-kicker { display: block; margin-bottom: 11px; color: var(--cc-accent); font-size: 11px; font-weight: 650; }
.concord-overview h1 { margin: 0; color: var(--cc-ink); font-size: clamp(36px, 5vw, 50px); font-weight: 660; letter-spacing: -.042em; line-height: 1.06; }
.concord-overview-heading > p { max-width: 620px; margin: 13px 0 0; color: var(--cc-muted); font-size: 13px; line-height: 1.6; }
.concord-overview-meta { display: flex; flex-wrap: wrap; gap: 7px 16px; margin-top: 17px; color: var(--cc-muted); font-size: 10px; }
.concord-overview-meta span + span::before { content: "·"; margin-right: 16px; color: #b2b7b1; }
.concord-overview-recent { margin-top: 34px; }
.concord-overview-recent > header { margin-bottom: 11px; }
.concord-overview-recent h2 { margin: 0; font-size: 15px; font-weight: 690; letter-spacing: -.02em; }
.concord-overview-recent header p { margin: 4px 0 0; color: var(--cc-muted); font-size: 10.5px; }
.concord-recent-list { border-top: 1px solid var(--cc-line); }
.concord-recent-list > button { width: 100%; display: grid; grid-template-columns: 34px minmax(0, 1fr) auto 15px; align-items: center; gap: 11px; padding: 12px 3px; border: 0; border-bottom: 1px solid var(--cc-line-soft); background: transparent; color: var(--cc-ink); text-align: left; cursor: pointer; }
.concord-recent-list > button:hover { background: rgba(255,255,252,.62); }
.concord-recent-icon { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; background: var(--cc-accent-soft); color: var(--cc-accent); }
.concord-recent-icon .shell-icon { width: 15px; height: 15px; }
.concord-recent-list button > span:nth-child(2) { min-width: 0; display: grid; gap: 2px; }
.concord-recent-list strong { overflow: hidden; font-size: 11.5px; font-weight: 620; text-overflow: ellipsis; white-space: nowrap; }
.concord-recent-list small,
.concord-recent-list time { color: var(--cc-muted); font-size: 9.5px; }
.concord-recent-list > button > .shell-icon { width: 12px; height: 12px; color: #a1a7a0; }
.concord-overview-empty { display: grid; justify-items: start; gap: 7px; padding: 32px 0; border-top: 1px solid var(--cc-line); color: var(--cc-muted); }
.concord-overview-empty > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: var(--cc-accent-soft); color: var(--cc-accent); }
.concord-overview-empty strong { color: var(--cc-ink); font-size: 13px; }
.concord-overview-empty p { margin: 0 0 7px; font-size: 10.5px; }
.concord-overview-empty .primary-button { display: inline-flex; align-items: center; gap: 6px; min-height: 35px; border-radius: 8px; background: var(--cc-accent); font-size: 10.5px; }

/* Editor */

.concord-editor-page { width: 100%; height: 100%; min-height: 0; overflow: hidden; }
.concord-page-editor { width: 100%; height: 100%; max-width: none; display: grid; grid-template-rows: 54px minmax(0, 1fr); gap: 0; }
.concord-editor-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 15px; border-bottom: 1px solid var(--cc-line); background: #fbfcf8; }
.concord-editor-toolbar > div { display: flex; align-items: center; }
.concord-editor-toolbar > div:first-child { min-width: 0; gap: 9px; }
.concord-editor-backdrop-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; background: var(--cc-accent-soft); color: var(--cc-accent); }
.concord-editor-backdrop-icon .shell-icon { width: 15px; height: 15px; }
.concord-editor-toolbar > div:first-child > span:last-child { min-width: 0; display: grid; gap: 1px; }
.concord-editor-toolbar strong { font-size: 11.5px; }
.concord-editor-toolbar small { overflow: hidden; max-width: 360px; color: var(--cc-muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.concord-editor-actions { gap: 6px; }
.concord-editor-actions button { min-height: 33px; display: inline-flex; align-items: center; gap: 6px; border-radius: 8px; font-size: 10.5px; }
.concord-editor-actions .primary-button { background: var(--cc-accent); }
.concord-editor-canvas { min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.concord-editor-input-pane,
.concord-editor-preview-pane { min-width: 0; min-height: 0; display: grid; grid-template-rows: auto auto minmax(0, 1fr); gap: 14px; padding: 26px clamp(22px, 4vw, 44px); overflow: hidden; }
.concord-editor-input-pane { border-right: 1px solid var(--cc-line); background: var(--cc-bg); }
.concord-editor-preview-pane { grid-template-rows: auto minmax(0, 1fr); background: var(--cc-paper); }
.concord-editor-title-row { display: grid; grid-template-columns: 36px minmax(0, 1fr); align-items: center; gap: 12px; }
.concord-document-kind { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: var(--cc-accent-soft); color: var(--cc-accent); }
.concord-document-kind .shell-icon { width: 18px; height: 18px; }
.concord-page-editor .concord-editor-title-row input { min-width: 0; padding: 5px 0; border: 0; border-bottom: 1px solid transparent; border-radius: 0; outline: 0; background: transparent; color: var(--cc-ink); font-size: clamp(24px, 3vw, 34px); font-weight: 650; letter-spacing: -.035em; }
.concord-page-editor .concord-editor-title-row input:focus { border-bottom-color: #9cafaa; }
.concord-editor-field-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--cc-muted); font-size: 9.5px; font-weight: 650; }
.concord-editor-field-heading small { font-size: 9px; font-weight: 500; }
.concord-editor-field-heading label { display: flex; align-items: center; gap: 6px; }
.concord-page-editor .concord-editor-field-heading input { width: 48px; padding: 3px 5px; border: 1px solid var(--cc-line); border-radius: 5px; background: #fff; color: var(--cc-ink); font-size: 9px; text-align: center; }
.concord-page-editor #concordPageBody { width: 100%; height: 100%; min-height: 0; max-height: none; resize: none; padding: 19px; border: 1px solid var(--cc-line); border-radius: 10px; outline: 0; background: #fff; color: #2d352f; font-family: "SFMono-Regular", Consolas, monospace; font-size: 11.5px; line-height: 1.7; }
.concord-page-editor #concordPageBody:focus { border-color: #91aaa2; box-shadow: 0 0 0 3px rgba(49,95,87,.08); }
.concord-page-editor .concord-editor-preview-pane .concord-preview { height: 100%; max-height: none; overflow: auto; padding: 22px 26px; border: 1px solid var(--cc-line-soft); border-radius: 10px; background: #fffefa; font-size: 13px; }

.concord-workspace-home { height: 100%; padding: 40px; background: var(--cc-bg); }
.concord-workspace-home .concord-panel-heading { display: none; }
.concord-workspace-home .concord-empty-detail { width: min(520px, 100%); min-height: 320px; display: grid; place-content: center; gap: 8px; margin: 40px auto; padding: 38px; border: 1px dashed #cfd3cc; border-radius: 14px; background: rgba(255,255,252,.6); color: var(--cc-muted); text-align: center; }
.concord-workspace-home h3 { margin: 0; color: var(--cc-ink); }

.concord-main > .concord-shell > .account-notice {
  position: fixed;
  z-index: 60;
  top: 70px;
  right: 16px;
  max-width: min(400px, calc(100vw - 32px));
  margin: 0;
  padding: 9px 11px;
  border-color: #b9d3c9;
  border-radius: 9px;
  background: #f3faf6;
  box-shadow: 0 12px 32px rgba(25,35,29,.12);
  font-size: 11px;
}

body:has(#concordMain:not([hidden]) .concord-document) .page-assistant-bubble { display: none; }
body:has(#concordMain:not([hidden]) .concord-document) .page-assistant-panel { bottom: 0; }

@media (max-width: 980px) {
  .concord-page-layout { grid-template-columns: minmax(250px, var(--concord-tree-width, 270px)) 4px minmax(0, 1fr); }
  .concord-article { width: min(720px, calc(100% - 38px)); }
  .concord-toolbar-action span { display: none; }
  .concord-toolbar-action { width: 33px; padding: 0; justify-content: center; }
}

@media (max-width: 760px) {
  .concord-main { height: auto; min-height: calc(100vh - 56px); overflow-y: auto; }
  .concord-page-layout { height: auto; grid-template-columns: 1fr; grid-template-rows: 300px minmax(560px, auto); }
  .concord-navigator { border-bottom: 1px solid var(--cc-line); }
  .concord-splitter { display: none; }
  .concord-detail-panel { min-height: 560px; }
  .concord-document { min-height: 620px; }
  .concord-breadcrumbs { max-width: calc(100vw - 145px); }
  .concord-breadcrumbs button,
  .concord-breadcrumbs strong { max-width: 110px; }
  .concord-article { width: min(100% - 32px, 680px); padding-top: 48px; }
  .concord-overview { padding: 48px 20px 60px; }
  .concord-editor-page,
  .concord-page-editor { height: auto; overflow: visible; }
  .concord-page-editor { grid-template-rows: auto auto; }
  .concord-editor-toolbar { min-height: 54px; }
  .concord-editor-canvas { grid-template-columns: 1fr; }
  .concord-editor-input-pane,
  .concord-editor-preview-pane { min-height: 540px; }
  .concord-editor-input-pane { border-right: 0; border-bottom: 1px solid var(--cc-line); }
}

@media (max-width: 520px) {
  .concord-document-toolbar { padding-inline: 9px; }
  .concord-breadcrumbs { max-width: calc(100vw - 96px); }
  .concord-document-actions .concord-toolbar-action:not(.primary) { display: none; }
  .concord-article { width: calc(100% - 28px); padding-top: 36px; }
  .concord-article-heading h1 { font-size: 31px; }
  .concord-article-meta { gap: 6px 10px; }
  .concord-article-meta > span:not(.concord-reviewed-badge) + span:not(.concord-reviewed-badge)::before { margin-right: 10px; }
  .concord-recent-list > button { grid-template-columns: 32px minmax(0, 1fr) 13px; }
  .concord-recent-list time { display: none; }
  .concord-folder-list-heading,
  .concord-folder-list > button { grid-template-columns: 30px minmax(0, 1fr) 14px; }
  .concord-folder-list-heading span:last-child,
  .concord-folder-list small { display: none; }
  .concord-editor-toolbar small,
  .concord-editor-actions .primary-button span { display: none; }
  .concord-editor-input-pane,
  .concord-editor-preview-pane { padding: 20px 14px; }
}