/* FiniteWiki v0.1 SPA — dark-default (fleet rule); light via prefers-color-scheme.
   Layout = top bar + [spaces rail | page tree | page/editor]. */
:root {
  --wk-accent: #0ea5e9;
  --wk-bg: #0f141a;
  --wk-panel: #161d26;
  --wk-panel-2: #1c2530;
  --wk-border: #26313d;
  --wk-text: #e6edf3;
  --wk-muted: #8b98a6;
  --wk-hover: #202a36;
  --wk-danger: #ef4444;
}
@media (prefers-color-scheme: light) {
  :root {
    --wk-bg: #f6f8fa; --wk-panel: #ffffff; --wk-panel-2: #f0f3f6;
    --wk-border: #d6dee6; --wk-text: #1b2530; --wk-muted: #5a6b7b;
    --wk-hover: #eaeff4;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 14px/1.5 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--wk-bg); color: var(--wk-text);
}
.wk-app { height: 100vh; display: flex; flex-direction: column; }
.wk-boot { padding: 3rem; text-align: center; color: var(--wk-muted); }

/* top bar */
.wk-top {
  display: flex; align-items: center; gap: .75rem; padding: .5rem .9rem;
  background: var(--wk-panel); border-bottom: 1px solid var(--wk-border);
  flex: 0 0 auto;
}
.wk-brand { display: flex; align-items: center; gap: .5rem; font-weight: 650; }
.wk-brand img { width: 24px; height: 24px; }
.wk-top .spacer { flex: 1; }
.wk-who { color: var(--wk-muted); font-size: 12.5px; }

/* body columns */
.wk-main { flex: 1; display: flex; min-height: 0; }
.wk-rail {
  width: 210px; flex: 0 0 auto; background: var(--wk-panel);
  border-right: 1px solid var(--wk-border); overflow-y: auto; padding: .6rem;
}
.wk-tree-col {
  width: 280px; flex: 0 0 auto; background: var(--wk-panel-2);
  border-right: 1px solid var(--wk-border); overflow-y: auto; padding: .6rem;
}
.wk-content { flex: 1; overflow-y: auto; padding: 1.4rem 2rem; min-width: 0; }

.wk-rail h3, .wk-tree-col h3 {
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--wk-muted); margin: .3rem .2rem .5rem; display: flex;
  align-items: center; justify-content: space-between;
}

/* buttons */
.wk-btn {
  font: inherit; cursor: pointer; border: 1px solid var(--wk-border);
  background: var(--wk-panel); color: var(--wk-text); border-radius: 7px;
  padding: .38rem .7rem; display: inline-flex; align-items: center; gap: .4rem;
}
.wk-btn:hover { background: var(--wk-hover); }
.wk-btn.primary { background: var(--wk-accent); border-color: var(--wk-accent); color: #04141d; font-weight: 600; }
.wk-btn.ghost { border: none; background: none; padding: .25rem .4rem; }
.wk-btn.sm { padding: .2rem .45rem; font-size: 12px; }
.wk-btn.danger:hover { background: var(--wk-danger); border-color: var(--wk-danger); color: #fff; }

/* spaces rail list */
.wk-space {
  display: flex; align-items: center; gap: .45rem; padding: .4rem .5rem;
  border-radius: 7px; cursor: pointer; color: var(--wk-text);
}
.wk-space:hover { background: var(--wk-hover); }
.wk-space.active { background: var(--wk-accent); color: #04141d; font-weight: 600; }
.wk-space .k { font-size: 10.5px; opacity: .7; margin-left: auto; }
.wk-space .badge { font-size: 10px; padding: 0 .3rem; border-radius: 5px;
  border: 1px solid currentColor; opacity: .65; }

/* page tree */
.wk-node { user-select: none; }
.wk-node-row {
  display: flex; align-items: center; gap: .25rem; padding: .28rem .35rem;
  border-radius: 6px; cursor: pointer; position: relative;
}
.wk-node-row:hover { background: var(--wk-hover); }
.wk-node-row.active { background: var(--wk-accent); color: #04141d; }
.wk-node-row.active .wk-btn.ghost { color: #04141d; }
.wk-caret { width: 14px; text-align: center; color: var(--wk-muted); flex: 0 0 auto; }
.wk-node-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wk-node-actions { display: none; gap: .1rem; }
.wk-node-row:hover .wk-node-actions { display: flex; }
.wk-node-children { margin-left: 14px; border-left: 1px solid var(--wk-border); padding-left: 4px; }
.wk-node-row.drop-into { outline: 2px solid var(--wk-accent); outline-offset: -2px; }
.wk-node-row.drop-before::before,
.wk-node-row.drop-after::after {
  content: ""; position: absolute; left: 0; right: 0; height: 2px; background: var(--wk-accent);
}
.wk-node-row.drop-before::before { top: -1px; }
.wk-node-row.drop-after::after { bottom: -1px; }

/* content / editor */
.wk-crumbs { color: var(--wk-muted); font-size: 12.5px; margin-bottom: .6rem; }
.wk-crumbs a { color: var(--wk-muted); cursor: pointer; }
.wk-crumbs a:hover { color: var(--wk-accent); }
.wk-page-head { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: .3rem; }
.wk-page-head h1 { margin: 0; font-size: 1.8rem; flex: 1; }
.wk-page-meta { color: var(--wk-muted); font-size: 12px; margin-bottom: 1.2rem; }
.wk-pill { font-size: 10.5px; padding: .05rem .4rem; border-radius: 5px; border: 1px solid var(--wk-border); }
.wk-pill.pub { color: #34d399; border-color: #34d399; }
.wk-pill.draft { color: #fbbf24; border-color: #fbbf24; }
.wk-doc { max-width: 760px; }
.wk-doc h2 { font-size: 1.3rem; margin: 1.2rem 0 .5rem; }
.wk-doc h3 { font-size: 1.1rem; margin: 1rem 0 .4rem; }
.wk-doc p { margin: .5rem 0; }
.wk-empty { color: var(--wk-muted); font-style: italic; }

.wk-edit-title {
  width: 100%; max-width: 760px; font: 600 1.6rem/1.3 inherit; color: var(--wk-text);
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 8px;
  padding: .5rem .7rem; margin-bottom: .7rem;
}
.wk-edit-body {
  width: 100%; max-width: 760px; min-height: 320px; font: inherit; color: var(--wk-text);
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 8px;
  padding: .7rem; resize: vertical; line-height: 1.6;
}
.wk-edit-hint { color: var(--wk-muted); font-size: 12px; margin: .3rem 0 .7rem; }
.wk-edit-actions { display: flex; gap: .5rem; margin-top: .8rem; max-width: 760px; }
.wk-edit-actions .spacer { flex: 1; }

/* dialog */
.wk-modal-bg {
  position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex;
  align-items: center; justify-content: center; z-index: 50;
}
.wk-modal {
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 12px;
  padding: 1.2rem; width: 360px; max-width: 92vw;
}
.wk-modal h2 { margin: 0 0 .8rem; font-size: 1.1rem; }
.wk-field { margin-bottom: .7rem; display: flex; flex-direction: column; gap: .25rem; }
.wk-field label { font-size: 12px; color: var(--wk-muted); }
.wk-field input, .wk-field select {
  font: inherit; padding: .45rem .55rem; border-radius: 7px;
  border: 1px solid var(--wk-border); background: var(--wk-panel-2); color: var(--wk-text);
}
.wk-modal-actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }
.wk-err { color: var(--wk-danger); font-size: 12.5px; min-height: 1.1em; }

.wk-toast {
  position: fixed; bottom: 1.2rem; left: 50%; transform: translateX(-50%);
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 8px;
  padding: .5rem .9rem; z-index: 60; box-shadow: 0 8px 24px rgba(0,0,0,.35);
}
.wk-toast.err { border-color: var(--wk-danger); color: var(--wk-danger); }

.wk-check { display: flex; align-items: center; gap: .4rem; font-size: 13px; color: var(--wk-muted); margin: .2rem 0 .3rem; cursor: pointer; }
#wk-tree.root-drop { outline: 2px dashed var(--wk-accent); outline-offset: -4px; border-radius: 8px; }

/* ================= v0.2 rich editor (embedded TipTap, spec §5 D1) ========= */
.wk-editor-shell {
  max-width: 820px; border: 1px solid var(--wk-border); border-radius: 10px;
  background: var(--wk-panel); overflow: hidden;
}
.wk-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .15rem;
  padding: .35rem .45rem; max-width: 820px;
  border: 1px solid var(--wk-border); border-bottom: none;
  border-radius: 10px 10px 0 0; background: var(--wk-panel-2);
  position: sticky; top: 0; z-index: 5;
}
.wk-toolbar + .wk-editor-shell { border-radius: 0 0 10px 10px; }
.wk-tb-btn {
  font: inherit; min-width: 28px; height: 28px; padding: 0 .35rem; cursor: pointer;
  border: 1px solid transparent; background: none; color: var(--wk-text);
  border-radius: 6px; font-size: 13px; line-height: 1;
}
.wk-tb-btn:hover { background: var(--wk-hover); }
.wk-tb-btn.active { background: var(--wk-accent); color: #04141d; border-color: var(--wk-accent); }
.wk-tb-sep { width: 1px; height: 20px; background: var(--wk-border); margin: 0 .25rem; }
.wk-save-status { font-size: 12px; color: var(--wk-muted); align-self: center; margin-left: .3rem; }

/* ProseMirror surface (shared by editor + read-only page view) */
.ProseMirror {
  padding: 1rem 1.1rem; min-height: 320px; outline: none; line-height: 1.65;
  color: var(--wk-text); max-width: 820px;
}
#wk-view-doc.ProseMirror { padding: 0; min-height: 0; }
.ProseMirror:focus { outline: none; }
.ProseMirror > * + * { margin-top: .6rem; }
.ProseMirror h1 { font-size: 1.8rem; margin: 1.2rem 0 .3rem; line-height: 1.2; }
.ProseMirror h2 { font-size: 1.4rem; margin: 1.1rem 0 .3rem; }
.ProseMirror h3 { font-size: 1.15rem; margin: 1rem 0 .3rem; }
.ProseMirror p { margin: .5rem 0; }
.ProseMirror ul, .ProseMirror ol { padding-left: 1.5rem; }
.ProseMirror blockquote {
  border-left: 3px solid var(--wk-accent); margin: .6rem 0; padding: .1rem 1rem;
  color: var(--wk-muted);
}
.ProseMirror code {
  background: var(--wk-panel-2); border: 1px solid var(--wk-border);
  border-radius: 4px; padding: .05rem .3rem; font-size: .9em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
.ProseMirror pre {
  background: #0b1017; border: 1px solid var(--wk-border); border-radius: 8px;
  padding: .8rem 1rem; overflow-x: auto; font-size: 13px; line-height: 1.5;
}
.ProseMirror pre code { background: none; border: none; padding: 0; color: #d6e2ee; }
.ProseMirror img { max-width: 100%; border-radius: 6px; display: block; }
.ProseMirror hr { border: none; border-top: 1px solid var(--wk-border); margin: 1rem 0; }
.ProseMirror a { color: var(--wk-accent); }
/* tables */
.ProseMirror table {
  border-collapse: collapse; width: 100%; margin: .8rem 0; table-layout: fixed;
  overflow: hidden;
}
.ProseMirror th, .ProseMirror td {
  border: 1px solid var(--wk-border); padding: .4rem .55rem; vertical-align: top;
  position: relative; min-width: 3rem;
}
.ProseMirror th { background: var(--wk-panel-2); font-weight: 600; text-align: left; }
.ProseMirror .selectedCell::after {
  content: ""; position: absolute; inset: 0; background: rgba(14,165,233,.18); pointer-events: none;
}
.ProseMirror .column-resize-handle {
  position: absolute; right: -2px; top: 0; bottom: 0; width: 4px;
  background: var(--wk-accent); pointer-events: none;
}
/* task lists */
.ProseMirror ul[data-type="taskList"] { list-style: none; padding-left: .2rem; }
.ProseMirror ul[data-type="taskList"] li { display: flex; gap: .5rem; align-items: flex-start; }
.ProseMirror ul[data-type="taskList"] li > label { margin-top: .15rem; }
.ProseMirror ul[data-type="taskList"] li > div { flex: 1; }
.ProseMirror ul[data-type="taskList"] p { margin: 0; }
/* placeholder */
.ProseMirror p.is-editor-empty:first-child::before {
  content: attr(data-placeholder); color: var(--wk-muted); float: left;
  height: 0; pointer-events: none;
}

/* slash command menu */
.wk-slash {
  position: fixed; z-index: 80; min-width: 220px; max-height: 320px; overflow-y: auto;
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0,0,0,.4); padding: .3rem;
}
.wk-slash-item {
  display: flex; align-items: center; gap: .6rem; padding: .4rem .5rem;
  border-radius: 7px; cursor: pointer;
}
.wk-slash-item.active, .wk-slash-item:hover { background: var(--wk-hover); }
.wk-slash-ic {
  width: 28px; height: 24px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--wk-border); border-radius: 6px; font-size: 12px; color: var(--wk-muted);
}

/* =====================================================================
   v0.3 collaboration core — comments, mentions, presence, notifications
   ===================================================================== */

/* page + collaboration two-column shell */
.wk-page-shell { display: flex; gap: 1.5rem; align-items: flex-start; }
.wk-page-shell > #wk-page-inner { flex: 1; min-width: 0; }
.wk-collab { width: 340px; flex: 0 0 340px; position: sticky; top: .5rem; }
@media (max-width: 1080px) {
  .wk-page-shell { flex-direction: column; }
  .wk-collab { width: 100%; flex-basis: auto; position: static; }
}

.wk-page-head { display: flex; align-items: center; gap: .5rem; }
.wk-lock { color: var(--wk-accent); font-size: 13px; }

/* presence avatars */
.wk-presence { display: inline-flex; align-items: center; gap: -6px; }
.wk-avatar {
  width: 26px; height: 26px; border-radius: 50%; margin-left: -6px;
  background: var(--wk-accent); color: #04121b; font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  border: 2px solid var(--wk-panel); box-shadow: 0 0 0 1px var(--wk-border);
}
.wk-presence-note { color: var(--wk-muted); font-size: 12px; margin-left: .5rem; }

/* star/watch toggle buttons */
#wk-star.on { color: #f5c518; }
#wk-watch.on { color: var(--wk-accent); }

/* comments panel */
.wk-comments {
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 12px;
  padding: .75rem; max-height: 78vh; overflow-y: auto;
}
.wk-cmt-section { margin-bottom: 1rem; }
.wk-cmt-section h4 { margin: .2rem 0 .6rem; font-size: 13px; color: var(--wk-muted); text-transform: uppercase; letter-spacing: .04em; }
.wk-cmt {
  border: 1px solid var(--wk-border); border-radius: 10px; padding: .55rem .65rem;
  margin-bottom: .5rem; background: var(--wk-bg);
}
.wk-cmt.reply { margin-left: 1.25rem; border-left: 2px solid var(--wk-accent); }
.wk-cmt.resolved { opacity: .6; }
.wk-cmt-head { display: flex; align-items: center; gap: .4rem; margin-bottom: .3rem; }
.wk-cmt-author { font-weight: 600; font-size: 13px; }
.wk-cmt-when { color: var(--wk-muted); font-size: 11px; }
.wk-cmt-tag { font-size: 10px; padding: .05rem .4rem; border-radius: 999px; }
.wk-cmt-tag.ok { background: rgba(87,165,90,.2); color: #7bd07e; }
.wk-cmt-body { font-size: 14px; line-height: 1.5; word-wrap: break-word; }
.wk-cmt-row-actions { display: flex; gap: .1rem; margin-top: .35rem; }
.wk-cmt-quote {
  border-left: 3px solid var(--wk-accent); padding: .1rem .5rem; margin-bottom: .4rem;
  color: var(--wk-muted); font-style: italic; font-size: 13px;
}
.wk-mention { color: var(--wk-accent); background: rgba(14,165,233,.14); border-radius: 5px; padding: 0 .25rem; font-weight: 600; }

/* comment composer + @mention autocomplete */
.wk-cmt-composer { margin-top: .5rem; }
.wk-cmt-inputwrap { position: relative; }
.wk-cmt-input {
  width: 100%; box-sizing: border-box; resize: vertical; min-height: 2.6rem;
  background: var(--wk-bg); color: var(--wk-text); border: 1px solid var(--wk-border);
  border-radius: 8px; padding: .5rem; font: inherit; font-size: 14px;
}
.wk-cmt-actions { display: flex; gap: .4rem; margin-top: .4rem; }
.wk-mention-menu {
  position: absolute; z-index: 90; left: 0; top: 100%; min-width: 220px;
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 8px;
  box-shadow: 0 10px 26px rgba(0,0,0,.4); padding: .25rem; margin-top: 2px;
}
.wk-mention-item { padding: .35rem .5rem; border-radius: 6px; cursor: pointer; font-size: 13px; }
.wk-mention-item.active, .wk-mention-item:hover { background: var(--wk-hover); }
.wk-mention-item .e { color: var(--wk-muted); font-size: 12px; }

/* inline-comment selection button */
.wk-sel-comment {
  position: absolute; z-index: 85; background: var(--wk-accent); color: #04121b;
  border: none; border-radius: 7px; padding: .3rem .6rem; font-size: 12px; font-weight: 600;
  cursor: pointer; box-shadow: 0 4px 12px rgba(0,0,0,.35);
}

/* notification bell + tray */
.wk-bell { position: relative; }
.wk-badge {
  position: absolute; top: -4px; right: -4px; background: var(--wk-danger); color: #fff;
  font-size: 10px; font-weight: 700; min-width: 16px; height: 16px; line-height: 16px;
  border-radius: 999px; padding: 0 3px; text-align: center;
}
.wk-notif-pop {
  position: fixed; z-index: 120; width: 340px; max-height: 70vh; overflow-y: auto;
  background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,.5);
}
.wk-notif-head { display: flex; align-items: center; padding: .6rem .75rem; border-bottom: 1px solid var(--wk-border); }
.wk-notif { padding: .55rem .75rem; border-bottom: 1px solid var(--wk-border); cursor: pointer; font-size: 13px; }
.wk-notif:hover { background: var(--wk-hover); }
.wk-notif.unread { background: rgba(14,165,233,.08); }
.wk-notif-sub { color: var(--wk-muted); font-size: 12px; margin-top: .15rem; }

/* home view */
.wk-home-sect { margin: 1rem 0; }
.wk-home-sect h3 { font-size: 14px; margin-bottom: .4rem; }
.wk-home-item {
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .45rem .6rem; border: 1px solid var(--wk-border); border-radius: 8px;
  margin-bottom: .35rem; cursor: pointer;
}
.wk-home-item:hover { background: var(--wk-hover); }

/* ============================================================
   v0.4 — organize / find / govern (search palette, version diff,
   labels, template gallery, trash). Dark-default; light inherits vars.
   ============================================================ */

/* search button in the top bar */
.wk-search-btn { display: inline-flex; align-items: center; gap: .4rem; }
.wk-search-btn kbd {
  font: 11px/1 ui-monospace, monospace; padding: .12rem .3rem;
  border: 1px solid var(--wk-border); border-radius: 5px; color: var(--wk-muted);
  background: var(--wk-panel-2);
}

/* Ctrl+K command palette */
.wk-pal-bg {
  position: fixed; inset: 0; background: rgba(0,0,0,.45);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 12vh; z-index: 60;
}
.wk-pal {
  width: min(680px, 92vw); max-height: 70vh; display: flex; flex-direction: column;
  background: var(--wk-panel); border: 1px solid var(--wk-border);
  border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.5); overflow: hidden;
}
.wk-pal-input {
  border: 0; border-bottom: 1px solid var(--wk-border); background: transparent;
  color: var(--wk-text); font-size: 16px; padding: .9rem 1rem; outline: none;
}
.wk-pal-list { overflow-y: auto; padding: .35rem; }
.wk-pal-empty { padding: 1rem; color: var(--wk-muted); text-align: center; }
.wk-pal-row {
  display: flex; align-items: flex-start; gap: .6rem; padding: .5rem .6rem;
  border-radius: 8px; cursor: pointer;
}
.wk-pal-row.sel, .wk-pal-row:hover { background: var(--wk-hover); }
.wk-pal-ico { flex: 0 0 auto; font-size: 16px; line-height: 1.4; }
.wk-pal-main { min-width: 0; flex: 1; }
.wk-pal-title { font-weight: 600; display: flex; align-items: center; gap: .5rem; }
.wk-pal-space {
  font: 11px/1 ui-monospace, monospace; color: var(--wk-muted);
  border: 1px solid var(--wk-border); border-radius: 5px; padding: .1rem .3rem;
}
.wk-pal-snip { color: var(--wk-muted); font-size: 12.5px; margin-top: .15rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wk-pal-snip.cmt { font-style: italic; }
.wk-pal-snip mark, .wk-pal-title mark {
  background: color-mix(in srgb, var(--wk-accent) 40%, transparent);
  color: inherit; border-radius: 3px; padding: 0 .1em;
}
.wk-pal-labels { margin-top: .25rem; display: flex; gap: .3rem; flex-wrap: wrap; }
.wk-pal-tag { flex: 0 0 auto; align-self: center; font-size: 11px; color: var(--wk-muted); }
.wk-pal-hint { padding: .4rem .8rem; border-top: 1px solid var(--wk-border);
  color: var(--wk-muted); font-size: 11.5px; }

/* labels / tags */
.wk-labels { display: flex; align-items: center; gap: .35rem; flex-wrap: wrap; margin: .5rem 0 .2rem; }
.wk-labels-ico { color: var(--wk-muted); }
.wk-tag {
  display: inline-flex; align-items: center; gap: .2rem; font-size: 12px;
  background: var(--wk-panel-2); border: 1px solid var(--wk-border);
  border-radius: 999px; padding: .1rem .5rem; color: var(--wk-text);
}
.wk-tag-x, .wk-tag-go {
  border: 0; background: transparent; color: var(--wk-muted); cursor: pointer;
  font-size: 12px; padding: 0 .1rem; line-height: 1;
}
.wk-tag-x:hover { color: var(--wk-danger); }
.wk-tag-go:hover { color: var(--wk-accent); }
.wk-label-input {
  border: 1px dashed var(--wk-border); background: transparent; color: var(--wk-text);
  border-radius: 999px; padding: .1rem .5rem; font-size: 12px; width: 110px; outline: none;
}
.wk-label-input:focus { border-color: var(--wk-accent); }

/* wide modal + heads */
.wk-modal-wide { width: min(900px, 94vw); max-width: 94vw; }
.wk-modal-head { display: flex; align-items: center; margin-bottom: .5rem; }
.wk-modal-head h2 { margin: 0; }

/* version history */
.wk-history { display: flex; gap: 1rem; min-height: 340px; max-height: 66vh; }
.wk-vlist-wrap { flex: 0 0 260px; overflow-y: auto; border-right: 1px solid var(--wk-border); padding-right: .6rem; }
.wk-vlist-wrap h3 { font-size: 11px; text-transform: uppercase; color: var(--wk-muted); letter-spacing: .06em; }
.wk-vrow { display: flex; align-items: center; gap: .4rem; padding: .35rem .2rem; border-bottom: 1px solid var(--wk-border); }
.wk-vno { font: 12px/1 ui-monospace, monospace; color: var(--wk-accent); flex: 0 0 auto; }
.wk-vmeta { flex: 1; min-width: 0; }
.wk-vsub { font-size: 11px; color: var(--wk-muted); }
.wk-diff-wrap { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.wk-diff-controls { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; margin-bottom: .5rem; }
.wk-vsel { background: var(--wk-panel-2); color: var(--wk-text); border: 1px solid var(--wk-border); border-radius: 6px; padding: .2rem .3rem; max-width: 220px; }
.wk-diff-stats { display: flex; gap: .3rem; margin-left: auto; }
.wk-d-badge { font: 11px/1.4 ui-monospace, monospace; padding: .1rem .35rem; border-radius: 5px; border: 1px solid var(--wk-border); color: var(--wk-muted); }
.wk-d-badge.add { color: #3fb950; border-color: #23863633; }
.wk-d-badge.del { color: var(--wk-danger); }
.wk-d-badge.chg { color: #d29922; }
.wk-diff { flex: 1; overflow: auto; border: 1px solid var(--wk-border); border-radius: 8px; padding: .3rem 0; font: 12.5px/1.6 ui-monospace, SFMono-Regular, monospace; }
.wk-d-line { display: flex; gap: .5rem; padding: 0 .6rem; white-space: pre-wrap; word-break: break-word; }
.wk-d-gutter { flex: 0 0 1ch; color: var(--wk-muted); user-select: none; }
.wk-d-text { flex: 1; }
.wk-d-add { background: color-mix(in srgb, #3fb950 16%, transparent); }
.wk-d-del { background: color-mix(in srgb, var(--wk-danger) 15%, transparent); }
.wk-d-eq { color: var(--wk-muted); }
.wk-d-word { text-decoration: none; border-radius: 3px; padding: 0 .1em; }
ins.wk-d-word { background: color-mix(in srgb, #3fb950 42%, transparent); }
del.wk-d-word { background: color-mix(in srgb, var(--wk-danger) 38%, transparent); }

/* template gallery */
.wk-tpl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .7rem; max-height: 62vh; overflow-y: auto; padding: .2rem; }
.wk-tpl-card { position: relative; border: 1px solid var(--wk-border); border-radius: 10px; padding: .8rem; cursor: pointer; background: var(--wk-panel-2); transition: border-color .1s; }
.wk-tpl-card:hover { border-color: var(--wk-accent); }
.wk-tpl-card.blank { border-style: dashed; }
.wk-tpl-ico { font-size: 22px; }
.wk-tpl-name { font-weight: 600; margin-top: .3rem; }
.wk-tpl-desc { color: var(--wk-muted); font-size: 12px; margin-top: .2rem; min-height: 2.2em; }
.wk-tpl-badge { position: absolute; top: .5rem; right: .5rem; font-size: 10px; color: var(--wk-accent); border: 1px solid var(--wk-accent); border-radius: 5px; padding: 0 .3rem; }

/* trash */
.wk-trash-list { max-height: 56vh; overflow-y: auto; }
.wk-trash-row { display: flex; align-items: center; gap: .6rem; padding: .5rem .2rem; border-bottom: 1px solid var(--wk-border); }
.wk-trash-row span:first-child { flex: 1; }

/* -- v0.5 sharing & platform contracts ------------------------------------ */
/* backlinks panel (spec §5 / #35) */
.wk-backlinks-wrap { margin-bottom: 1rem; border: 1px solid var(--wk-border); border-radius: 10px; padding: .6rem .7rem; background: var(--wk-panel-2); }
.wk-collab-h { margin: 0 0 .4rem; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--wk-muted); }
.wk-bl-list { display: flex; flex-direction: column; gap: .35rem; }
.wk-bl-item { color: var(--wk-accent); text-decoration: none; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wk-bl-item:hover { text-decoration: underline; }

/* share dialog */
.wk-share-row { display: flex; gap: .4rem; align-items: center; }
.wk-share-url { flex: 1; font-family: ui-monospace, monospace; font-size: 12px; }

/* export popup */
.wk-export-pop { position: fixed; z-index: 60; background: var(--wk-panel); border: 1px solid var(--wk-border); border-radius: 9px; box-shadow: 0 8px 24px rgba(0,0,0,.35); padding: .3rem; min-width: 160px; display: flex; flex-direction: column; }
.wk-export-item { padding: .45rem .6rem; border-radius: 6px; color: var(--wk-text); text-decoration: none; font-size: 13px; cursor: pointer; }
.wk-export-item:hover { background: var(--wk-panel-2); }

/* ============================================================
   v1.0 macros subset + suite embeds (wiki-spec §2.1 / §2.4).
   Themed via --wk-* vars (dark-default, light via the root
   media query above). Classes match render_html.py so the
   in-app, exported, and public-share renders look identical.
   ============================================================ */
.wk-panel { border: 1px solid var(--wk-border); border-left-width: 3px;
  border-radius: 8px; padding: .55rem .8rem; margin: .7rem 0;
  background: var(--wk-panel-2); }
.wk-panel > :first-child { margin-top: 0; }
.wk-panel > :last-child { margin-bottom: 0; }
.wk-panel-info    { border-left-color: #3b82f6; }
.wk-panel-note    { border-left-color: #8b5cf6; }
.wk-panel-success { border-left-color: #22c55e; }
.wk-panel-warning { border-left-color: #f59e0b; }
.wk-panel-error   { border-left-color: #ef4444; }
.wk-panel-tip     { border-left-color: #14b8a6; }

.wk-status { display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase; padding: .1rem .45rem;
  border-radius: 4px; vertical-align: middle; color: #fff; }
.wk-status-neutral { background: #64748b; }
.wk-status-blue    { background: #3b82f6; }
.wk-status-green   { background: #22c55e; color: #04121b; }
.wk-status-yellow  { background: #eab308; color: #1b2530; }
.wk-status-red     { background: #ef4444; }
.wk-status-purple  { background: #8b5cf6; }

.wk-expand { border: 1px solid var(--wk-border); border-radius: 8px;
  padding: .1rem .7rem; margin: .7rem 0; background: var(--wk-panel-2); }
.wk-expand > summary { cursor: pointer; font-weight: 600; padding: .45rem 0;
  list-style: revert; }
.wk-expand > div { padding-bottom: .5rem; }

.wk-toc { border: 1px solid var(--wk-border); border-radius: 8px;
  padding: .6rem .85rem; margin: .7rem 0; background: var(--wk-panel-2);
  max-width: 22rem; }
.wk-toc-h, .wk-macro-label { font-size: 11px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; color: var(--wk-muted);
  margin-bottom: .3rem; }
.wk-toc ul { list-style: none; margin: 0; padding: 0; }
.wk-toc li { margin: .12rem 0; }
.wk-toc a { color: var(--wk-accent); text-decoration: none; font-size: 13px; }
.wk-toc a:hover { text-decoration: underline; }
.wk-toc-l1 { padding-left: .9rem; } .wk-toc-l2 { padding-left: 1.8rem; }
.wk-toc-l3 { padding-left: 2.7rem; } .wk-toc-l4 { padding-left: 3.6rem; }
.wk-toc-l5 { padding-left: 4.5rem; }

.wk-children, .wk-embed { border: 1px dashed var(--wk-border); border-radius: 8px;
  padding: .6rem .85rem; margin: .7rem 0; background: var(--wk-panel-2); }
.wk-embed { border-style: solid; }
.wk-embed a { color: var(--wk-accent); text-decoration: none; font-weight: 600; }
.wk-embed a:hover { text-decoration: underline; }
.wk-embed-bad { color: var(--wk-danger); border-color: var(--wk-danger); font-size: 13px; }

.wk-task-list { list-style: none; padding-left: 1rem; }
.wk-task-item { display: flex; align-items: baseline; gap: .4rem; }
.wk-task-box { color: var(--wk-accent); }
.wk-mention { color: var(--wk-accent); font-weight: 600; }

/* ---- narrow-width (phone) layout: collapse the side rails so the page
   never scrolls horizontally (wiki-spec §2.17 responsive MUST). The rails
   become full-width stacked sections; the page content gets the full width. */
@media (max-width: 720px) {
  .wk-main { flex-direction: column; }
  .wk-rail, .wk-tree-col { width: 100%; flex-basis: auto; max-height: 40vh; }
  .wk-content { padding: 1rem 1.1rem; }
  .wk-doc, .wk-edit-title, .wk-edit-body, .wk-edit-actions { max-width: 100%; }
  .fo-ver-pill { display: none; }
  /* Topbar action row must wrap, not overflow the viewport (spec §2.17
     responsive-web MUST). Without this the nowrap flex row spills its
     Search/+Space/Trash/bell/who/logout buttons past the screen edge and
     scrolls the whole page horizontally. Wrapping + dropping the Ctrl-K
     hint keeps every control reachable with zero horizontal scroll. */
  .wk-top { flex-wrap: wrap; row-gap: .4rem; }
  .wk-top .wk-search-btn kbd { display: none; }
}