/* ============================================================
   APP CHROME
   ============================================================ */
:root {
  /* Interface theme — 13-token set (phase 2 of the editor redesign).
     Values here are Bear dark, the default; applyUiTheme() swaps the set
     wholesale from UI_THEMES. These color the editor chrome ONLY — the
     exported D2L page keeps its own brand theme (Theme Settings panel). */
  --bg: #1c1c1e;       /* editor canvas */
  --chrome: #161618;   /* sidebar, toolbar, status bar, popovers */
  --panel: #262628;    /* block panels, active rows, hover fills */
  --border: #35353a;   /* all 1px borders and hairlines */
  --text: #d8d8dc;     /* body copy */
  --strong: #f5f5f7;   /* titles, headings, labels */
  --muted: #9b9ba3;    /* secondary text, counts, timestamps */
  --accent: #FF453A;   /* primary action, active markers */
  --c1: #4dd0c4;       /* components */
  --c2: #c084fc;       /* callouts */
  --c3: #f0b429;       /* knowledge checks, warnings */
  --c4: #7bc96f;       /* correct answers, saved state */
  --on: #1c1c1e;       /* text on top of --accent */
  /* Interface typefaces (design spec): Figtree for chrome — the stand-in
     for Bear Sans / Clarika Grotesque — IBM Plex Mono for block tags,
     shortcuts, and the editing surface. */
  --ui-font: "Figtree", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ui-mono: "IBM Plex Mono", "SF Mono", "Fira Code", "JetBrains Mono", monospace;
  /* Legacy aliases — the pre-redesign chrome rules still reference these.
     New rules use the tokens directly; these go away when the old rules do. */
  --app-bg: var(--bg);
  --app-surface: var(--panel);
  --app-border: var(--border);
  --app-text: var(--text);
  --app-muted: var(--muted);
  --app-accent: var(--accent);
  --app-green: var(--c4);
  --editor-bg: var(--bg);
  --editor-text: var(--text);
  --toolbar-bg: var(--chrome);
}
/* Password gate */
.pw-gate{position:fixed;inset:0;z-index:99999;background:var(--app-bg);display:flex;align-items:center;justify-content:center}
.pw-gate__box{text-align:center;max-width:320px;padding:2rem}
.pw-gate__box h1{font-size:1.4rem;color:var(--app-text);margin-bottom:.25rem;font-weight:700}
.pw-gate__box p{color:var(--app-muted);font-size:.85rem;margin-bottom:1.5rem}
.pw-gate__input{width:100%;padding:.6rem .8rem;font-family:inherit;font-size:.95rem;background:var(--editor-bg);color:var(--app-text);border:1px solid var(--app-border);border-radius:6px;text-align:center;outline:none}
.pw-gate__input:focus{border-color:var(--app-accent)}
.pw-gate__input.pw-error{border-color:#e05050;animation:pw-shake .35s ease}
.pw-gate__hint{color:#e05050;font-size:.8rem;margin-top:.5rem;opacity:0;transition:opacity .2s}
.pw-gate__hint.visible{opacity:1}
@keyframes pw-shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}

*{box-sizing:border-box;margin:0;padding:0}
/* The hidden attribute must always win: the UA's [hidden]{display:none}
   loses to any author display rule (.be-field{display:block} made every
   "hidden" prose textarea render beside its view — the doubled-text bug). */
[hidden]{display:none !important}
body{font-family:var(--ui-font);font-size:13px;background:var(--app-bg);color:var(--app-text);overflow:hidden;height:100vh}

/* Layout */
#app{display:flex;flex-direction:column;height:100vh}

/* Toolbar */
.toolbar{display:flex;align-items:center;gap:4px;padding:6px 10px;background:var(--toolbar-bg);border-bottom:1px solid var(--app-border);flex-wrap:wrap;flex-shrink:0}
.toolbar__group{display:flex;gap:2px;align-items:center}
.toolbar__sep{width:1px;height:22px;background:var(--app-border);margin:0 6px}
.toolbar__btn{padding:5px 12px;background:transparent;color:var(--app-muted);border:1px solid transparent;border-radius:6px;font-family:inherit;font-size:13px;cursor:pointer;white-space:nowrap;transition:all .15s}
.toolbar__btn:hover{background:var(--app-surface);color:var(--app-text);border-color:var(--app-border)}
.toolbar__btn--accent{color:var(--app-accent);font-weight:600}
.toolbar__btn--accent:hover{background:rgba(251,174,61,.12);border-color:var(--app-accent)}
.toolbar__btn--green{color:var(--app-green);font-weight:600}
.toolbar__btn--green:hover{background:rgba(70,166,96,.12);border-color:var(--app-green)}
.toolbar__title{font-weight:700;font-size:15px;color:var(--app-accent);margin-right:8px;letter-spacing:.02em}
.toolbar__dropdown{position:relative;display:inline-block}
.toolbar__dropdown-menu{display:none;position:absolute;top:100%;left:0;background:var(--app-surface);border:1px solid var(--app-border);border-radius:10px;padding:4px 0;z-index:100;min-width:200px;box-shadow:0 8px 24px rgba(0,0,0,.4)}
.toolbar__dropdown-menu.open{display:block}
.toolbar__dropdown-item{display:block;width:100%;padding:7px 14px;background:none;border:none;color:var(--app-text);font-family:inherit;font-size:13px;text-align:left;cursor:pointer}
.toolbar__dropdown-item:hover{background:rgba(251,174,61,.1);color:var(--app-accent)}
.toolbar__dropdown-item small{display:block;color:var(--app-muted);font-size:11px;margin-top:1px}

/* Main split pane */
.main{display:flex;flex:1;overflow:hidden}
.pane{flex:1;display:flex;flex-direction:column;overflow:hidden}
.pane--editor{border-right:2px solid var(--app-border)}
.pane__header{padding:6px 12px;background:var(--app-surface);border-bottom:1px solid var(--app-border);font-size:11px;font-weight:600;color:var(--app-muted);text-transform:uppercase;letter-spacing:.08em;display:flex;justify-content:space-between;flex-shrink:0}
/* Write mode — live editor (Bear/Obsidian). Markers live in the text
   but hide via .om-syn; the caret line (.om-active) reveals them. Real
   typography is allowed here: the browser owns the caret. */
.om-wrap{flex:1;overflow-y:auto;background:var(--bg);min-height:0}
.om-wrap[hidden]{display:none}
.om-editor{max-width:760px;margin:0 auto;padding:26px 40px 45vh;outline:none;
  font-family:var(--ui-font);font-size:16px;line-height:1.7;color:var(--text);
  white-space:pre-wrap;overflow-wrap:break-word;caret-color:var(--strong)}
.om-editor ::selection,.om-editor::selection{background:color-mix(in srgb, var(--accent) 28%, transparent)}
.om-line{min-height:1.7em;position:relative}
.om-syn{display:none}
.om-active .om-syn{display:inline;opacity:.4}
.om-editor b{color:var(--strong)}
.om-editor i{color:var(--text)}
.om-editor s{opacity:.75}
.om-editor code{font-family:var(--ui-mono);font-size:.88em;background:var(--panel);border-radius:4px;padding:.05em .25em}
.om-link{color:var(--c1);text-decoration:underline;text-underline-offset:2px}
.om-arrow{font-weight:700;color:var(--accent)}
.om-key{font-weight:600;color:color-mix(in srgb, var(--c1) 70%, var(--strong))}
.om-opt{font-weight:700;color:color-mix(in srgb, var(--c3) 72%, var(--strong))}
.om-star{color:var(--c4)}
.om-h1,.om-h2,.om-h3,.om-h4{color:var(--strong);font-weight:700}
.om-h1{font-size:1.7em;line-height:1.25;margin:14px 0 6px}
.om-h2{font-size:1.4em;line-height:1.3;margin:16px 0 6px}
.om-h3{font-size:1.18em;margin:12px 0 4px}
.om-h4{font-size:1.05em;margin:10px 0 3px}
.om-fm,.om-fm-edge{font-family:var(--ui-mono);font-size:12.5px;line-height:1.75;background:color-mix(in srgb, var(--panel) 70%, transparent)}
.om-fm-edge{opacity:.55}
.om-fence,.om-fedge{font-family:var(--ui-mono);font-size:13px;line-height:1.75;background:color-mix(in srgb, var(--panel) 85%, transparent)}
.om-f-kc{background:color-mix(in srgb, var(--c3) 7%, transparent)}
.om-f-kc .om-key{color:color-mix(in srgb, var(--c3) 70%, var(--strong))}
.om-fedge .om-tick{opacity:.35}
.om-fedge::after{content:attr(data-label);position:absolute;right:0;top:.3em;font-size:10px;letter-spacing:.13em;text-transform:uppercase;font-weight:700;color:var(--muted);pointer-events:none}
.om-fedge--kc::after{color:var(--c3)}
.om-fedge--comp::after{color:var(--c1)}
.om-callout{background:color-mix(in srgb, var(--c2) 7%, transparent);box-shadow:inset 3px 0 0 var(--c2);padding-left:10px}
.om-callout .om-key{color:var(--c2)}
.om-hr{min-height:1.7em}
.om-hr::before{content:'';position:absolute;left:96px;right:0;top:.85em;height:1px;background:var(--border);pointer-events:none}
.om-hr::after{content:'card break';position:absolute;left:0;top:.3em;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);pointer-events:none}
.om-hr.om-active::before,.om-hr.om-active::after{display:none}
/* Prose lists: leading spaces + "- " hide like any syntax (the active
   line reveals them); indentation is structural padding per depth with
   a hanging indent so wrapped lines align under the text. The same
   bullet glyph at every depth, same size (Reid, 2026-09-10); numbers
   stay visible, weighted. */
.om-list{padding-left:24px;text-indent:-16px}
.om-ld1{padding-left:46px}
.om-ld2{padding-left:68px}
.om-ld3{padding-left:90px}
.om-ld4{padding-left:112px}
.om-li::before{content:'•';display:inline-block;width:16px;text-indent:0;color:var(--accent);font-weight:600}
.om-line.om-active .om-li::before{display:none}
.om-linum{display:inline-block;min-width:16px;text-indent:0;font-weight:600;color:color-mix(in srgb, var(--accent) 65%, var(--strong));font-variant-numeric:tabular-nums}
/* Inline image previews (slice 7): the markdown line stays, faded
   mono; the preview renders below it in the same line. Widths mirror
   the generated page's size map (360/520/720/100%), capped at the
   column. pointer-events:none so clicks land in the line's text. */
.om-imgsyn{font-family:var(--ui-mono);font-size:12px;color:var(--muted)}
.om-line.om-active .om-imgsyn{color:var(--text)}
.om-imgprev{display:block;margin:6px 0 4px;max-width:100%;border:1px solid var(--border);border-radius:8px;pointer-events:none;user-select:none}
.om-imgprev--small{width:360px}
.om-imgprev--medium{width:520px}
.om-imgprev--large{width:720px}
.om-imgprev--full{width:100%}
.om-imgcap{font-size:13px;color:var(--muted);font-style:italic}
/* Source mode: plain mono textarea */
.se-wrap{flex:1;overflow-y:auto;background:var(--bg);min-height:0}
.se-wrap[hidden]{display:none}
.se-inner{max-width:760px;margin:0 auto;padding:26px 40px 80px}
#editor{display:block;width:100%;padding:0;margin:0;background:transparent;border:none;outline:none;resize:none;overflow:hidden;
  color:var(--editor-text);font-family:var(--ui-mono);font-size:13.5px;line-height:1.65;tab-size:2;white-space:pre-wrap;overflow-wrap:break-word}
#editor::placeholder{color:var(--muted)}
#editor::placeholder{color:var(--app-muted)}
#preview-frame{flex:1;width:100%;border:none;background:#fff}

/* Status bar */
.statusbar{display:flex;justify-content:space-between;padding:4px 12px;background:var(--toolbar-bg);border-top:1px solid var(--app-border);font-size:11px;color:var(--app-muted);flex-shrink:0}
.source-toggle{padding:3px 9px;font-family:inherit;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;background:transparent;color:var(--app-muted);border:1px solid var(--app-border);border-radius:6px;cursor:pointer;transition:all .15s}
.source-toggle:hover{color:var(--app-accent);border-color:var(--app-accent)}
.source-toggle.active{color:var(--app-accent);border-color:var(--app-accent);background:rgba(251,174,61,.1)}
.source-view{position:relative;flex:1;overflow:auto;background:var(--editor-bg);border-radius:6px}
.source-view__pre{margin:0;padding:12px;font-family:var(--ui-mono);font-size:12px;line-height:1.5;color:var(--editor-text);white-space:pre-wrap;word-break:break-word;tab-size:2}
.source-view__copy{position:sticky;top:8px;float:right;margin:8px;padding:4px 11px;font-family:inherit;font-size:11px;font-weight:600;background:var(--app-surface);color:var(--app-muted);border:1px solid var(--app-border);border-radius:6px;cursor:pointer;z-index:1}
.source-view__copy:hover{color:var(--app-accent);border-color:var(--app-accent)}

/* Overlay for dropdowns */
.overlay{position:fixed;inset:0;z-index:50;display:none}
.overlay.open{display:block}

/* Theme panel */
.theme-panel{position:fixed;top:0;right:-380px;width:380px;height:100vh;background:var(--app-surface);border-left:2px solid var(--app-border);z-index:200;transition:right .25s ease;display:flex;flex-direction:column;overflow:hidden}
.theme-panel.open{right:0}
.theme-panel__header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--app-border);flex-shrink:0}
.theme-panel__title{font-weight:700;font-size:14px;color:var(--app-accent);letter-spacing:.02em}
.theme-panel__close{background:none;border:none;color:var(--app-muted);font-size:18px;cursor:pointer;padding:4px 8px;border-radius:4px}
.theme-panel__close:hover{color:var(--app-text);background:var(--app-bg)}
.theme-panel__body{flex:1;overflow-y:auto;padding:16px}
.theme-panel__section{margin-bottom:20px}
.theme-panel__section-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--app-accent);margin-bottom:10px}
.theme-panel__row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;gap:8px}
.theme-panel__label{font-size:12px;color:var(--app-text);flex:1}
.theme-panel__color{width:36px;height:28px;border:1px solid var(--app-border);border-radius:4px;cursor:pointer;padding:0;background:none}
.theme-panel__color::-webkit-color-swatch-wrapper{padding:2px}
.theme-panel__color::-webkit-color-swatch{border:none;border-radius:2px}
.theme-panel__select{background:var(--app-bg);color:var(--app-text);border:1px solid var(--app-border);border-radius:4px;padding:4px 8px;font-family:inherit;font-size:12px;width:180px}
.theme-panel__input{background:var(--app-bg);color:var(--app-text);border:1px solid var(--app-border);border-radius:4px;padding:4px 8px;font-family:inherit;font-size:12px;width:180px}
.theme-panel__footer{padding:12px 16px;border-top:1px solid var(--app-border);display:flex;gap:6px;flex-wrap:wrap;flex-shrink:0}
.theme-panel__footer-btn{padding:5px 12px;border-radius:4px;font-family:inherit;font-size:11px;font-weight:600;cursor:pointer;border:1px solid var(--app-border);background:var(--app-bg);color:var(--app-text);transition:all .15s}
.theme-panel__footer-btn:hover{border-color:var(--app-accent);color:var(--app-accent)}
.theme-panel__footer-btn--accent{background:var(--app-accent);color:#1a1a2a;border-color:var(--app-accent)}
.theme-panel__footer-btn--accent:hover{background:#e9a035;border-color:#e9a035}
.theme-panel__logo-preview{margin-top:6px;max-height:40px;max-width:160px;object-fit:contain;display:none;background:#fff;padding:4px;border-radius:4px}
.theme-panel__logo-row{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}
.theme-panel__logo-actions{display:flex;gap:6px;align-items:center}
.theme-panel__file-btn{padding:4px 10px;border-radius:4px;font-family:inherit;font-size:11px;cursor:pointer;border:1px solid var(--app-border);background:var(--app-bg);color:var(--app-text)}
.theme-panel__file-btn:hover{border-color:var(--app-accent);color:var(--app-accent)}
.theme-panel__overlay{position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:199;display:none}
.theme-panel__overlay.open{display:block}

/* Block editor — the prose-styled writing surface (design 5a; phase 6).
   Every editable is a transparent auto-grown textarea or input; the
   markdown in #editor stays canonical and is rebuilt on every edit. */
.block-editor{flex:1;overflow-y:auto;background:var(--bg);min-height:0}
.block-editor[hidden]{display:none}
.block-editor__inner{max-width:760px;margin:0 auto;padding:26px 40px 80px}
.be-field{display:block;width:100%;background:transparent;border:none;outline:none;font-family:var(--ui-font);color:var(--text);resize:none;overflow:hidden;padding:0;margin:0}
.be-eyebrow{font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--muted);margin-bottom:6px}
.be-title{font-size:29px;font-weight:700;line-height:1.14;letter-spacing:-.022em;color:var(--strong);margin-bottom:4px}
.be-byline{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.be-prose{font-size:16.5px;line-height:1.68;color:var(--text);margin:0 0 10px}
.be-heading{display:flex;align-items:center;gap:12px;margin:18px 0 10px}
.be-heading__mark{font-family:var(--ui-mono);font-size:13px;color:var(--accent);flex-shrink:0}
.be-heading__input{flex:1 1 auto;min-width:0;font-size:19px;font-weight:700;letter-spacing:-.015em;color:var(--strong);background:transparent;border:none;outline:none;font-family:var(--ui-font)}
.be-heading__rule{flex:0 0 120px;height:1px;background:var(--border)}
.be-panel{border:1px solid var(--border);border-radius:10px;background:var(--panel);padding:12px 18px;margin:0 0 12px}
.be-panel__head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.be-pill{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;border-radius:20px;padding:3px 10px}
.be-panel__count{font-size:12.5px;color:var(--muted)}
.be-panel__body{font-family:var(--ui-mono);font-size:13px;line-height:1.65;color:var(--text)}
.be-callout{border-left:3px solid var(--c2);border-radius:0 8px 8px 0;padding:10px 18px;margin:0 0 12px;background:var(--panel);background:color-mix(in srgb, var(--c2) 8%, transparent)}
.be-callout__label{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--c2);margin-bottom:4px}
.be-callout__title{font-size:15px;font-weight:600;color:var(--strong);margin-bottom:2px}
.be-callout__body{font-size:15px;line-height:1.6;color:var(--text)}
.be-hr{display:flex;align-items:center;gap:10px;margin:2px 0 14px;color:var(--muted);font-size:11px;font-family:var(--ui-mono);user-select:none}
.be-hr::before{content:"";flex:1;height:1px;background:var(--border)}
.be-block:focus-within .be-heading__rule{background:var(--accent)}
.be-panel:focus-within,.be-callout:focus-within{border-color:var(--accent)}
.be-field::placeholder,.be-heading__input::placeholder{color:var(--muted);font-style:italic}
/* Component panel field rows (design 5a) */
.be-rows{display:grid;grid-template-columns:fit-content(42%) 1fr}
@supports not (grid-template-columns: subgrid) {.be-rows{display:block}}
.be-row{display:grid;grid-column:1/-1;grid-template-columns:subgrid;gap:4px 14px;padding:7px 0;border-top:1px solid var(--border);align-items:baseline}
@supports not (grid-template-columns: subgrid) {.be-row{grid-template-columns:fit-content(42%) 1fr}}
.be-row:first-child{border-top:0}
.be-row--gap{border-top:0;height:8px;padding:0;grid-column:1/-1;grid-template-columns:1fr}
.be-row--full{grid-template-columns:1fr;grid-column:1/-1}
.be-row--full .be-row__valta{font-size:15px}
.be-row__label{font-size:13.5px;font-weight:600;color:var(--strong);font-family:var(--ui-font);line-height:1.5;word-break:break-word}
.be-row__label--key{color:var(--muted);font-weight:600}
.be-row__label-input{display:block;width:100%;min-width:0;font-size:13.5px;font-weight:600;color:var(--strong);background:transparent;border:none;outline:none;font-family:var(--ui-font);padding:0;margin:0;resize:none;overflow:hidden;line-height:1.5}
.be-row__valta{font-size:14.5px;line-height:1.55;margin:0}
.be-row__value{min-width:0}
.be-rows__addwrap{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding-top:8px}
.be-rows__add{background:none;border:none;color:var(--muted);font-size:11.5px;font-family:var(--ui-font);cursor:pointer;padding:0}
.be-rows__chip{font-size:10.5px;padding:2px 8px;border:1px solid var(--border);border-radius:20px;background:none;color:var(--muted);cursor:pointer;font-family:var(--ui-mono)}
.be-rows__chip:hover{border-color:var(--accent);color:var(--accent)}
.be-rows__add:hover{color:var(--accent)}
.be-panel__src{background:none;border:none;color:var(--muted);font-size:10.5px;font-family:var(--ui-mono);cursor:pointer;border-radius:6px;padding:2px 6px}
.be-panel__warn{margin-left:auto;color:var(--c3);font-size:11.5px;cursor:default}
.diag-state{color:var(--c3);cursor:default}
.diag-state--error{color:var(--c2);font-weight:600}
.be-panel__src:hover{color:var(--accent)}
.be-panel__src.active{color:var(--accent)}

/* Selection formatting palette */
.fmt-pop{display:none;position:fixed;z-index:600;gap:2px;background:var(--chrome);border:1px solid var(--border);border-radius:8px;box-shadow:0 12px 32px rgba(0,0,0,.35);padding:3px}
.fmt-pop.open{display:flex}
.fmt-pop button{min-width:28px;height:26px;padding:0 8px;background:none;border:none;border-radius:6px;font-family:var(--ui-font);font-size:13px;color:var(--text);cursor:pointer}
.fmt-pop button:hover{background:var(--panel);color:var(--strong)}
.fmt-pop button strong{color:inherit}
/* Prose hybrid view (rendered at rest, raw while editing) */
.be-prose-view{cursor:text;white-space:pre-wrap;word-break:break-word}
.be-prose-view[hidden]{display:none}
.be-prose-view strong{color:var(--strong)}
.be-prose-view code{background:var(--panel);padding:.1em .3em;border-radius:4px;font-family:var(--ui-mono);font-size:.9em}
.be-prose-view a{color:var(--c1);text-decoration:underline;text-underline-offset:2px}
.be-prose-view__empty{color:var(--muted)}
.be-prose-view:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}
.be-panel__live{font-size:11px;color:var(--accent);white-space:nowrap}
/* Block gutter: move / delete on hover or focus */
.be-block{position:relative}
.be-gutter{position:absolute;top:2px;right:-34px;display:none;flex-direction:column;gap:2px;z-index:3}
.be-block:hover .be-gutter,.be-block:focus-within .be-gutter{display:flex}
.be-gutter button{width:24px;height:22px;padding:0;background:var(--chrome);border:1px solid var(--border);border-radius:6px;color:var(--muted);font-size:11px;cursor:pointer;font-family:var(--ui-font)}
.be-gutter button:hover{color:var(--strong);border-color:var(--accent)}
/* Zen mode (⌘.) — nothing but the writing column */
body.zen .toolbar,body.zen .statusbar,body.zen .sidebar,body.zen .resizer,body.zen .pane--preview,body.zen .cheatsheet,body.zen .pane__header{display:none}
body.zen .pane--editor{border-right:none}
/* Sidebar card context menu */
.card-menu{position:fixed;z-index:500;background:var(--chrome);border:1px solid var(--border);border-radius:10px;box-shadow:0 24px 60px rgba(0,0,0,.35);padding:4px 0;min-width:150px}
.card-menu button{display:block;width:100%;padding:7px 14px;background:none;border:none;font-family:inherit;font-size:13px;color:var(--text);text-align:left;cursor:pointer}
.card-menu button:hover{background:var(--panel);color:var(--strong)}
/* Sidebar page finder (design 5a/5b) */
.sidebar{display:flex;flex-direction:column;width:300px;flex-shrink:0;background:var(--chrome);border-right:1px solid var(--border);min-height:0;transition:width 180ms ease}
@media (prefers-reduced-motion:reduce){.sidebar{transition:none}}
.sidebar--collapsed{width:196px}
.sidebar__app{display:flex;align-items:center;gap:8px;height:48px;padding:0 16px;flex-shrink:0}
.sidebar__mark{color:var(--accent);font-size:16px;line-height:1;flex-shrink:0}
.sidebar__name{font-size:15.5px;font-weight:700;color:var(--strong);flex:1;white-space:nowrap;overflow:hidden}
.sidebar__glyph{background:none;border:none;color:var(--muted);cursor:pointer;font-size:15px;padding:2px 5px;border-radius:4px;font-family:inherit}
.sidebar__glyph:hover{color:var(--strong);background:var(--panel)}
.sidebar__glyph--accent{color:var(--accent);font-size:18px;font-weight:600;line-height:1}
.sidebar__glyph--accent:hover{color:var(--accent)}
.sidebar__search{margin:0 12px 10px;padding:6px 10px;background:var(--panel);border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:12.5px;color:var(--text);outline:none}
.sidebar__search::placeholder{color:var(--muted)}
.sidebar__search:focus{border-color:var(--accent)}
.sidebar__notebooks{padding:0 12px 4px}
.sidebar__nb{display:flex;align-items:center;gap:8px;width:100%;padding:6px 10px;border-radius:6px;background:none;border:none;font-family:inherit;font-size:13px;color:var(--text);cursor:pointer;text-align:left}
.sidebar__nb:hover,.sidebar__nb.active{background:var(--panel)}
.sidebar__nb-dot{width:6px;height:6px;border-radius:50%;flex-shrink:0}
.sidebar__nb-count{margin-left:auto;font-size:11.5px;color:var(--muted)}
.sidebar__divider{height:1px;background:var(--border);margin:0 12px 10px;flex-shrink:0}
.sidebar__label{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--muted);padding:0 14px 6px;white-space:nowrap;overflow:hidden}
.sidebar__pages{flex:1;overflow-y:auto;padding:0 10px 8px;min-height:0}
.sidebar__card{display:flex;flex-direction:column;gap:3px;width:100%;padding:9px 11px;border:1px solid transparent;border-radius:7px;background:none;font-family:inherit;cursor:pointer;text-align:left;margin-bottom:3px}
.sidebar__card:hover{background:var(--panel)}
.sidebar__card.active{background:var(--panel);border-color:var(--border);box-shadow:inset 2px 0 0 var(--accent)}
.sidebar__card-title{font-size:13px;font-weight:600;color:var(--strong);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar__card-snippet{font-size:12px;color:var(--muted);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sidebar__card-meta{display:flex;gap:6px;font-size:11.5px;color:var(--muted)}
.sidebar__card-warn{margin-left:auto;color:var(--c3)}
.sidebar--collapsed .sidebar__card{padding:7px 12px;gap:0}
.sidebar--collapsed .sidebar__card-title{font-size:13px;font-weight:400;color:var(--text)}
.sidebar--collapsed .sidebar__card.active .sidebar__card-title{color:var(--strong)}
.sidebar--collapsed .sidebar__card-snippet,.sidebar--collapsed .sidebar__card-meta,.sidebar--collapsed .sidebar__nb-count,.sidebar--collapsed .sidebar__search,.sidebar--collapsed .sidebar__label{display:none}
.sidebar__footer{display:flex;justify-content:space-between;align-items:center;height:40px;padding:0 14px;border-top:1px solid var(--border);flex-shrink:0}
.sidebar__footer button{background:none;border:none;color:var(--muted);font-family:inherit;font-size:12.5px;cursor:pointer;padding:2px 4px;border-radius:4px}
.sidebar__footer button:hover{color:var(--strong);background:var(--panel)}
.sidebar__cta{display:block;width:calc(100% - 24px);margin:0 12px 10px;padding:8px;background:var(--accent);color:var(--on);border:none;border-radius:7px;font-family:inherit;font-size:12.5px;font-weight:600;cursor:pointer;text-align:center}
.sidebar__cta:hover{filter:brightness(1.08)}
.sidebar__cta--ghost{background:none;border:1px solid var(--border);color:var(--text);font-weight:400}
.sidebar__cta--ghost:hover{border-color:var(--accent);color:var(--accent);filter:none}
.sidebar__note{font-size:11px;color:var(--muted);line-height:1.45;padding:0 14px 10px}
.sidebar button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
body.preview-closed .pane--preview{display:none}
body.preview-closed #resize-preview{display:none}
/* Pane resizers: drag to resize, double-click the sidebar handle to hide it */
.resizer{flex:0 0 5px;cursor:col-resize;background:transparent;position:relative;z-index:5}
.resizer:hover,.resizer.dragging{background:var(--accent);opacity:.35}
.sidebar.dragging,.pane--preview.dragging{transition:none}
.sidebar--hidden{display:none}
/* Mobile (≤900px): Bear-style horizontal panels — swipe between the
   page list, the editor, and the preview. */
@media (max-width:900px){
  .main{overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .sidebar,.sidebar--collapsed{flex:0 0 85%;width:85% !important;max-width:none !important;scroll-snap-align:start;transition:none}
  .sidebar--collapsed .sidebar__card-snippet,.sidebar--collapsed .sidebar__card-meta,.sidebar--collapsed .sidebar__search,.sidebar--collapsed .sidebar__label,.sidebar--collapsed .sidebar__nb-count{display:initial}
  .sidebar--collapsed .sidebar__search{display:block}
  .pane--editor{flex:0 0 100%;scroll-snap-align:start}
  .pane--preview{flex:0 0 100%;width:100% !important;max-width:none !important;scroll-snap-align:start}
  body.preview-closed .pane--preview{display:flex}
  body.preview-closed #resize-preview{display:none}
  .cheatsheet{flex:0 0 85%;scroll-snap-align:start}
  .resizer{display:none}
  .sidebar--hidden{display:flex}
}
/* Preview pane (design 5b): 620px chrome-toned pane, mode chips, the
   generated page floating as a white card on shadow. */
.pane--preview{flex:0 0 auto;width:620px;max-width:55%;background:var(--chrome)}
.preview-chips{display:flex;gap:4px}
.preview-chip{padding:4px 11px;font-family:inherit;font-size:12.5px;font-weight:500;text-transform:none;letter-spacing:0;background:transparent;border:1px solid var(--border);border-radius:6px;color:var(--muted);cursor:pointer}
.preview-chip:hover{color:var(--strong)}
.preview-chip.active{background:var(--panel);color:var(--strong);font-weight:600}
.preview-chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pane--preview{position:relative}
/* Jump-to-cursor: quiet pill floating over the preview. Replaces the
   old always-on outline + auto-scroll, which made the preview jump
   around mid-edit. */
.preview-jump{position:absolute;bottom:16px;right:22px;z-index:6;padding:5px 12px;border:1px solid var(--border);border-radius:999px;background:color-mix(in srgb, var(--chrome) 90%, transparent);backdrop-filter:blur(6px);color:var(--muted);font-family:inherit;font-size:12px;cursor:pointer;opacity:.7;transition:opacity .15s,color .15s}
.preview-jump:hover{opacity:1;color:var(--strong)}
.preview-stage{flex:1;display:flex;overflow:auto;padding:16px;min-height:0;background:var(--chrome)}
.preview-page{flex:1;display:flex;min-width:0;background:#fff;border-radius:6px;box-shadow:0 18px 50px rgba(0,0,0,.45);overflow:hidden;margin:0 auto;transition:width 180ms ease}
.preview-page--mobile{flex:0 0 auto;width:375px}
@media (prefers-reduced-motion:reduce){.preview-page{transition:none}}
.save-state{color:var(--c4)}
.save-state--dirty{color:var(--muted)}
.save-state--saving{color:var(--c3)}
.save-state--error{color:var(--accent)}

/* Insert menu (design 6a) */
.toolbar__kbd{font-size:10px;opacity:.6;letter-spacing:.02em}
.insert-menu{display:none;position:absolute;top:100%;left:0;width:284px;background:var(--chrome);border:1px solid var(--border);border-radius:10px;box-shadow:0 24px 60px rgba(0,0,0,.35);z-index:120;max-height:calc(100vh - 80px);overflow-y:auto}
.insert-menu.open{display:block}
.insert-menu__label{font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--muted);padding:9px 14px 7px}
.insert-menu__section{border-top:1px solid var(--border)}
.insert-menu__section:first-child{border-top:0}
.insert-menu__row{display:flex;align-items:center;gap:8px;width:100%;padding:7px 14px;background:none;border:none;font-family:inherit;font-size:13px;color:var(--text);cursor:pointer;text-align:left}
.insert-menu__row:hover{background:var(--panel);color:var(--strong)}
.insert-menu__dot{width:6px;height:6px;border-radius:50%;flex-shrink:0}
.insert-menu__name{flex:1}
.insert-menu__tag{font-family:var(--ui-mono);font-size:11px;color:var(--muted)}
.insert-menu__more{display:block;width:100%;padding:6px 14px 9px;background:none;border:none;font-family:inherit;font-size:12px;color:var(--accent);cursor:pointer;text-align:left}
.insert-menu__more:hover{text-decoration:underline}
.insert-menu__chips{display:flex;flex-wrap:wrap;gap:6px;padding:2px 14px 12px}
.insert-menu__chip{font-size:12px;padding:3px 10px;border:1px solid var(--border);border-radius:20px;background:none;font-family:inherit;color:var(--text);cursor:pointer}
.insert-menu__chip:hover{border-color:var(--accent);color:var(--accent)}
.insert-menu__footer{background:var(--bg);padding:8px 14px;font-size:11.5px;color:var(--muted);border-top:1px solid var(--border);border-radius:0 0 10px 10px}
.insert-menu button:focus-visible,.palette button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ⌘K palette (design 2a) */
.palette-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:400}
.palette-backdrop.open{display:block}
.palette{display:none;position:fixed;top:16vh;left:50%;transform:translateX(-50%);width:560px;max-width:92vw;background:var(--chrome);border:1px solid var(--border);border-radius:10px;box-shadow:0 24px 60px rgba(0,0,0,.45);z-index:401;overflow:hidden}
.palette.open{display:block}
.palette__input-row{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--border)}
.palette__prompt{color:var(--accent);font-weight:700;font-size:15px}
.palette__input{flex:1;background:none;border:none;outline:none;font-family:inherit;font-size:14px;color:var(--strong)}
.palette__input::placeholder{color:var(--muted)}
.palette__count{font-size:11.5px;color:var(--muted)}
.palette__results{max-height:320px;overflow-y:auto;padding:6px 0}
.palette__row{display:flex;align-items:center;gap:10px;width:100%;padding:9px 16px;background:none;border:none;font-family:inherit;color:var(--text);cursor:pointer;text-align:left}
.palette__row.selected{background:var(--panel)}
.palette__row-main{flex:1;min-width:0}
.palette__row-name{font-size:13.5px;font-weight:600;color:var(--strong)}
.palette__row-desc{font-size:12px;color:var(--muted);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.palette__row-enter{font-size:12px;color:var(--muted);opacity:0}
.palette__row.selected .palette__row-enter{opacity:1}
.palette__preview{margin:0;padding:10px 16px;border-top:1px solid var(--border);background:var(--bg);font-family:var(--ui-mono);font-size:11px;line-height:1.5;color:var(--text);max-height:180px;overflow:auto;white-space:pre-wrap}
.palette__footer{display:flex;gap:14px;padding:8px 16px;border-top:1px solid var(--border);font-size:11.5px;color:var(--muted)}
.palette__empty{padding:18px 16px;font-size:13px;color:var(--muted)}

/* Syntax cheatsheet (design 1b) */
.cheatsheet{display:none;flex-direction:column;width:300px;flex-shrink:0;background:var(--chrome);border-left:1px solid var(--border);min-height:0}
.cheatsheet.open{display:flex}
.cheatsheet__header{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;font-size:13px;font-weight:600;color:var(--strong);border-bottom:1px solid var(--border)}
.cheatsheet__hint{font-size:10.5px;color:var(--muted);font-weight:400}
.cheatsheet__search{margin:10px 12px;padding:6px 10px;background:var(--panel);border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:12.5px;color:var(--text);outline:none}
.cheatsheet__search:focus{border-color:var(--accent)}
.cheatsheet__body{flex:1;overflow-y:auto;padding:0 12px 14px}
.cheatsheet__label{font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--muted);margin:14px 2px 6px}
.cheatsheet__card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:10px 12px;margin-bottom:8px}
.cheatsheet__type{font-size:12px;font-weight:600;color:var(--strong);margin-bottom:6px;display:flex;justify-content:space-between;align-items:center}
.cheatsheet__type small{font-size:10.5px;color:var(--muted);font-weight:400}
.cheatsheet__row{display:flex;gap:8px;font-size:11.5px;line-height:1.5;padding:1.5px 0}
.cheatsheet__field{color:var(--accent);flex-shrink:0}
.cheatsheet__note{color:var(--muted)}
.cheatsheet__tip{font-size:11px;color:var(--muted);font-style:italic;margin-top:6px;border-top:1px solid var(--border);padding-top:6px}
.cheatsheet__mono{font-family:var(--ui-mono);font-size:11px;color:var(--text)}

/* Interface theme picker (design 6a) */
.ui-theme-pop{position:fixed;bottom:50px;left:12px;width:296px;background:var(--chrome);border:1px solid var(--border);border-radius:10px;box-shadow:0 24px 60px rgba(0,0,0,.35);z-index:300;display:none}
.ui-theme-pop.open{display:block}
.ui-theme-pop__header{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;font-size:13px;font-weight:600;color:var(--strong)}
.ui-theme-pop__close{background:none;border:none;color:var(--muted);font-size:15px;cursor:pointer;padding:2px 6px;border-radius:4px}
.ui-theme-pop__close:hover{color:var(--strong);background:var(--panel)}
.ui-theme-pop__modes{display:flex;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:3px;margin:0 14px 10px}
.ui-theme-pop__mode{flex:1;padding:5px 0;text-align:center;font-family:inherit;font-size:12.5px;background:none;border:none;border-radius:6px;color:var(--muted);cursor:pointer}
.ui-theme-pop__mode.active{background:var(--panel);color:var(--strong);font-weight:600}
.ui-theme-pop__rows{padding:0 14px 10px}
.ui-theme-pop__row{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border-radius:7px;background:none;border:none;font-family:inherit;font-size:13px;color:var(--text);cursor:pointer;text-align:left}
.ui-theme-pop__row:hover{background:var(--panel)}
.ui-theme-pop__row.active{background:var(--panel)}
.ui-theme-pop__swatches{display:flex;gap:3px;flex-shrink:0}
.ui-theme-pop__chip{width:13px;height:13px;border-radius:3px;border:1px solid rgba(128,128,128,.35)}
.ui-theme-pop__name{flex:1}
.ui-theme-pop__check{color:var(--accent);font-weight:700}
.ui-theme-pop__note{padding:9px 14px;border-top:1px solid var(--border);font-size:11.5px;color:var(--muted);line-height:1.45}
.ui-theme-pop button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Guide syntax vs entered text (Reid 2026-09-10): structure is bold and
   high-contrast; the author's own words stay regular weight. */
.om-sect{font-weight:700;color:var(--strong)}
/* Current-line emphasis: a whisper of tone layered OVER any line
   background (background-image stacks above background-color). */
.om-line.om-active{background-image:linear-gradient(color-mix(in srgb, var(--strong) 5%, transparent), color-mix(in srgb, var(--strong) 5%, transparent))}
/* Folded fences: body hidden, pill shows ▸, edge invites the click */
.om-line.om-folded{display:none}
.om-fedge--open::after{pointer-events:none}
.om-fedge--open:hover::after{color:var(--accent)}
.om-fedge--open{cursor:pointer}
.om-foldedge{border-radius:8px}
/* ⌘E form card */
.form-card{position:fixed;top:9vh;left:50%;transform:translateX(-50%);width:620px;max-width:94vw;max-height:80vh;display:flex;flex-direction:column;background:var(--chrome);border:1px solid var(--border);border-radius:12px;box-shadow:0 24px 60px rgba(0,0,0,.35);z-index:450}
.form-card__head{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--border);flex-shrink:0}
.form-card__body{overflow-y:auto;padding:12px 18px;min-height:0}
.form-card__body .be-row__valta{font-size:14px}
.form-card__foot{display:flex;justify-content:flex-end;padding:10px 16px;border-top:1px solid var(--border);flex-shrink:0}
.form-card__done{padding:6px 14px;background:var(--accent);color:var(--on);border:none;border-radius:7px;font-family:inherit;font-size:13px;font-weight:600;cursor:pointer}
.form-card__done:hover{filter:brightness(1.08)}
.form-card__done .toolbar__kbd{opacity:.7}

/* Pair labels (flip-card fronts, matching prompts) read as structure */
.om-pairlabel{font-weight:700;color:var(--strong)}
/* The quiet rule intersecting H2s — the be-heading__rule, reborn.
   Absolute, so it can never disturb text layout or the caret. */
.om-h2{position:relative}
.om-h2::after{content:'';position:absolute;right:0;top:.78em;width:120px;height:1px;background:var(--border);pointer-events:none}
.om-h2.om-active::after{background:var(--accent)}

/* ── Slice 5: delight ─────────────────────────────────────────── */
/* Popovers and menus arrive, they don't appear */
@keyframes pop-in{from{opacity:0;transform:translateY(4px) scale(.985)}to{opacity:1;transform:none}}
@keyframes pop-in-center{from{opacity:0;transform:translateX(-50%) translateY(6px) scale(.985)}to{opacity:1;transform:translateX(-50%)}}
@keyframes fade-in{from{opacity:0}to{opacity:1}}
.insert-menu.open,.ui-theme-pop.open,.card-menu{animation:pop-in 130ms cubic-bezier(.2,.8,.3,1)}
.palette.open,.form-card{animation:pop-in-center 150ms cubic-bezier(.2,.8,.3,1)}
.palette-backdrop.open{animation:fade-in 120ms ease}
.cheatsheet.open{animation:pop-in 130ms cubic-bezier(.2,.8,.3,1)}
/* Save state breathes when it changes */
.save-state{transition:color .25s ease}
@keyframes save-blink{0%{opacity:.25}100%{opacity:1}}
.save-state--saved{animation:save-blink .35s ease}
/* Sidebar cards ease */
.sidebar__card{transition:background .12s ease,border-color .12s ease}
/* Info panel — outline, stats, checks */
.statusbar__info{background:none;border:none;color:inherit;font:inherit;cursor:pointer;padding:2px 6px;border-radius:5px}
.statusbar__info:hover{background:var(--panel);color:var(--strong)}
.info-pop{position:fixed;left:12px;bottom:34px;width:300px;max-height:64vh;display:flex;flex-direction:column;background:var(--chrome);border:1px solid var(--border);border-radius:10px;box-shadow:0 24px 60px rgba(0,0,0,.35);z-index:320;animation:pop-in 130ms cubic-bezier(.2,.8,.3,1)}
.info-pop__head{display:flex;justify-content:space-between;align-items:center;padding:11px 14px;font-size:13px;font-weight:600;color:var(--strong);border-bottom:1px solid var(--border)}
.info-pop__body{overflow-y:auto;padding:6px 8px 12px;min-height:0}
.info-pop__label{font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--muted);padding:10px 8px 5px}
.info-pop__toc{display:block;width:100%;padding:5px 8px;border:none;background:none;font-family:inherit;font-size:13px;color:var(--text);text-align:left;cursor:pointer;border-radius:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.info-pop__toc:hover{background:var(--panel);color:var(--strong)}
.info-pop__toc--h3{padding-left:22px;font-size:12.5px}
.info-pop__stats{display:flex;flex-wrap:wrap;gap:5px 14px;padding:2px 8px;font-size:12.5px;color:var(--text)}
.info-pop__stats b{color:var(--strong);font-weight:600}
.info-pop__check{display:block;width:100%;padding:5px 8px;border:none;background:none;font-family:inherit;font-size:12.5px;color:var(--c3);text-align:left;cursor:pointer;border-radius:6px}
.info-pop__check--error{color:var(--c2)}
.info-pop__check:hover{background:var(--panel)}
.info-pop__ok{padding:5px 8px;font-size:12.5px;color:var(--c4)}
.info-pop__empty{padding:5px 8px;font-size:12.5px;color:var(--muted);font-style:italic}
@media (prefers-reduced-motion:reduce){
  .insert-menu.open,.ui-theme-pop.open,.card-menu,.palette.open,.form-card,.palette-backdrop.open,.cheatsheet.open,.info-pop{animation:none}
  .save-state--saved{animation:none}
}

/* Toolbar pencil mark */
.toolbar__mark{color:var(--accent);font-style:normal}
/* Image dialog */
.img-dialog{width:460px}
.img-dialog[hidden]{display:none}
.img-dialog__label{display:block;font-size:12.5px;font-weight:600;color:var(--strong);margin:8px 0 10px}
.img-dialog__hint{font-weight:400;color:var(--muted)}
.img-dialog__input{display:block;width:100%;margin-top:5px;padding:7px 10px;background:var(--panel);border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:13.5px;color:var(--text);outline:none}
.img-dialog__input:focus{border-color:var(--accent)}
.img-dialog .insert-menu__chip.active{border-color:var(--accent);color:var(--accent)}
.img-dialog .form-card__foot{justify-content:space-between}
.img-dialog__cancel{padding:6px 12px;background:none;border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:13px;color:var(--muted);cursor:pointer}
.img-dialog__cancel:hover{color:var(--strong);border-color:var(--accent)}

/* ── Workspace tree (Rebuild revision) ─────────────────────────── */
.tree-row{display:flex;align-items:center;gap:7px;padding:7px 10px 6px 6px;border-radius:6px;font-size:13px;color:var(--text);cursor:pointer;user-select:none;position:relative;margin-top:6px}
.tree-row:hover{background:var(--panel)}
.tree-row--folder .tree-row__name{font-weight:600;color:var(--strong)}
.tree-row--activefolder{background:var(--panel)}
.tree-row--activefolder .tree-row__name{color:var(--accent)}
.tree-row--active{background:var(--panel);box-shadow:inset 2px 0 0 var(--accent)}
.tree-row__disc{width:12px;flex-shrink:0;color:var(--muted);font-size:10px;text-align:center}
.tree-row__dot{width:6px;height:6px;border-radius:50%;background:var(--border);flex-shrink:0;margin:0 3px}
.tree-row--active .tree-row__dot{background:var(--accent)}
.tree-row__name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* Auto-numbering prefixes (toggle in Export menu): muted, tabular */
.tree-num{color:var(--muted);font-weight:600;margin-right:6px;font-variant-numeric:tabular-nums}
.tree-row__path{color:var(--muted);font-size:11px}
.tree-row__count{font-size:10.5px;color:var(--muted);flex-shrink:0}
.tree-row__warn{font-size:10.5px;color:var(--c3);flex-shrink:0}
.tree-row--dropinto{box-shadow:inset 0 0 0 2px var(--accent);border-radius:6px}
.tree-row--dropabove::before,.tree-row--dropbelow::after{content:'';position:absolute;left:8px;right:8px;height:2px;background:var(--accent);border-radius:1px}
.tree-row--dropabove::before{top:-1px}
.tree-row--dropbelow::after{bottom:-1px}
.sidebar__trash{flex-shrink:0;border-top:1px solid var(--border);padding:4px 8px;max-height:30vh;overflow-y:auto}
.sidebar__trash:empty{display:none;border-top:none;padding:0}
.tree-row--trash .tree-row__name{color:var(--muted);font-weight:600}
.tree-row--trashed{opacity:.75}

/* Color rail (sidebar-folders brief, Turn 8a): depth is a colored rail,
   not indentation. Module rows carry a 3×14 swatch; branch groups draw
   the module color as a vertical rail (d1 3px @ .35, d2 2px @ .22);
   submodule labels take the module color. Chevrons always visible. */
.tree-row--mod{padding:7px 6px;margin-top:3px}
.tree-row--mod .tree-row__name{font-size:12.5px;font-weight:700;color:var(--strong)}
.tree-rail{width:3px;height:14px;border-radius:2px;flex-shrink:0}
.tree-chev{width:8px;flex-shrink:0;font-size:9px;color:var(--muted);text-align:center}
.tree-row--sub{padding:6px 6px 4px;margin-top:2px}
.tree-row--sub .tree-row__name{font-size:11.5px;font-weight:600;letter-spacing:.02em;color:var(--modc)}
.tree-row__count{font-size:11px;font-weight:500}
.tree-branch{position:relative;padding-left:18px}
.tree-branch::before{content:'';position:absolute;left:6px;top:2px;bottom:2px;width:3px;border-radius:2px;background:var(--rail);opacity:.35}
.tree-branch--d2::before{width:2px;opacity:.22}
.kb-focus{background:var(--panel);border-radius:6px}
/* Drop indicator for a whole folder group: the line sits above the
   header or below the group's last child, so "after this module" reads
   as after its contents. */
.tree-group{position:relative}
.tree-group--dropabove::before,.tree-group--dropbelow::after{content:'';position:absolute;left:4px;right:4px;height:2px;background:var(--accent);border-radius:1px;z-index:2}
.tree-group--dropabove::before{top:0}
.tree-group--dropbelow::after{bottom:-2px}
.sidebar__pages:focus{outline:none}
.sidebar__pages:focus-visible{outline:1px solid var(--border);outline-offset:-1px;border-radius:6px}
.sidebar__card[draggable]{cursor:default}
.sidebar__card.tree-row--dropinto,.sidebar__card.tree-row--dropabove,.sidebar__card.tree-row--dropbelow{position:relative}
.sidebar__card.tree-row--dropabove::before,.sidebar__card.tree-row--dropbelow::after{content:'';position:absolute;left:8px;right:8px;height:2px;background:var(--accent);border-radius:1px}
.sidebar__card.tree-row--dropabove::before{top:-2px}
.sidebar__card.tree-row--dropbelow::after{bottom:-2px}
.sidebar__card-warn{margin-left:auto;color:var(--c3)}