:root{
  --ground:#E4E8E2; --panel:#F3F5F1; --panel-2:#EAEEE8; --ink:#18201C; --muted:#56635C;
  --rule:#C7D0C8; --rule-soft:#D7DED8; --accent:#1C6A4E; --accent-ink:#FFFFFF; --accent-soft:#D5E7DD;
  --editor:#FBFCFA; --gutter:#8A968F; --error:#A8261D; --error-soft:#F6DEDA; --warn:#8A5A00;
  --paper:#FFFFFF; --paper-ink:#111111; --mat-line:rgba(28,106,78,.10); --mat-line-strong:rgba(28,106,78,.18);
  --shadow:0 1px 2px rgba(20,30,25,.08),0 8px 28px rgba(20,30,25,.10);
  --ui:"IBM Plex Sans",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --cond:"IBM Plex Sans Condensed","IBM Plex Sans","Arial Narrow",Arial,sans-serif;
  --mono:"IBM Plex Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ground:#101412; --panel:#161B18; --panel-2:#1C221F; --ink:#E1E8E3; --muted:#8D9A93;
    --rule:#2A332E; --rule-soft:#222a26; --accent:#5AC393; --accent-ink:#0B1D15; --accent-soft:#1D3529;
    --editor:#131815; --gutter:#5F6C65; --error:#FF8F84; --error-soft:#3A1E1B; --warn:#E6B45A;
    --mat-line:rgba(90,195,147,.07); --mat-line-strong:rgba(90,195,147,.13);
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"]{
  --ground:#101412; --panel:#161B18; --panel-2:#1C221F; --ink:#E1E8E3; --muted:#8D9A93;
  --rule:#2A332E; --rule-soft:#222a26; --accent:#5AC393; --accent-ink:#0B1D15; --accent-soft:#1D3529;
  --editor:#131815; --gutter:#5F6C65; --error:#FF8F84; --error-soft:#3A1E1B; --warn:#E6B45A;
  --mat-line:rgba(90,195,147,.07); --mat-line-strong:rgba(90,195,147,.13);
  --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{background:var(--ground);color:var(--ink);font:14px/1.45 var(--ui);}
button,select,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.app{display:grid;grid-template-rows:auto 1fr;height:100vh;min-height:560px}
.top{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:10px 18px;background:var(--panel);border-bottom:1px solid var(--rule)}
.brand{display:flex;align-items:center;gap:10px;margin-right:6px}
.brand svg{flex:none}
.brand b{font:600 17px/1 var(--cond);letter-spacing:.09em;text-transform:uppercase}
.brand small{display:block;font:500 11px/1.2 var(--cond);letter-spacing:.06em;color:var(--muted);text-transform:uppercase;margin-top:3px}
.field{display:flex;align-items:center;gap:8px}
.lbl{font:500 11px/1 var(--cond);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
select{appearance:none;background:var(--editor) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%2378857e' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 9px center;border:1px solid var(--rule);border-radius:6px;padding:5px 28px 5px 10px;cursor:pointer}
.opts{display:flex;gap:14px;flex-wrap:wrap;margin-left:auto;align-items:center}
.seg{display:inline-flex;border:1px solid var(--rule);border-radius:6px;overflow:hidden;background:var(--editor)}
.seg button{border:0;background:none;padding:5px 10px;cursor:pointer;color:var(--muted);font-size:13px;line-height:1.2}
.seg button+button{border-left:1px solid var(--rule)}
.seg button[aria-pressed="true"]{background:var(--accent-soft);color:var(--ink);font-weight:500}
.seg button:hover{color:var(--ink)}
.check{display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-size:13px;color:var(--muted)}
.check input{accent-color:var(--accent);width:15px;height:15px;margin:0}

.work{display:grid;grid-template-columns:minmax(340px,37%) 1fr;min-height:0}
.pane{display:flex;flex-direction:column;min-height:0;min-width:0}
.pane-head{display:flex;align-items:center;gap:10px;min-height:42px;padding:7px 14px;border-bottom:1px solid var(--rule);background:var(--panel-2)}
.pane-head .title{font:600 12px/1 var(--cond);letter-spacing:.08em;text-transform:uppercase}
.pane-head .meta{color:var(--muted);font-size:12.5px}
.editor-pane{border-right:1px solid var(--rule);background:var(--editor)}
.editor{position:relative;flex:1;display:grid;grid-template-columns:auto 1fr;min-height:0;overflow:hidden}
.gutter{padding:12px 8px 40px 12px;text-align:right;color:var(--gutter);font:13px/20px var(--mono);user-select:none;overflow:hidden;font-variant-numeric:tabular-nums;border-right:1px solid var(--rule-soft);min-width:44px}
.gutter div.err{color:var(--error);font-weight:500}
textarea{border:0;outline:none;resize:none;background:transparent;padding:12px 14px 40px;font:13px/20px var(--mono);white-space:pre;overflow:auto;tab-size:4;min-height:0;height:100%}
textarea:focus-visible{outline:none}
.status{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:9px 14px;border-top:1px solid var(--rule);background:var(--panel-2);font-size:12.5px;color:var(--muted);min-height:44px}
.status .msg{flex:1;min-width:180px}
.status .msg.err{color:var(--error)}
.status .msg.ok b{color:var(--ink);font-weight:500}
.btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--rule);background:var(--editor);border-radius:6px;padding:5px 11px;cursor:pointer;font-size:13px;white-space:nowrap}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:500}
.btn.primary:hover{filter:brightness(1.06)}
.btn:disabled{opacity:.55;cursor:default}
.btn svg{flex:none}

.sheet-pane{background:var(--ground)}
.chips{display:flex;gap:6px;flex-wrap:wrap;flex:1;min-width:0}
.chip{border:1px solid var(--rule);background:var(--editor);border-radius:999px;padding:3px 11px;font-size:12.5px;cursor:pointer;color:var(--muted);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip[aria-pressed="true"]{border-color:var(--accent);color:var(--ink);background:var(--accent-soft)}
.zoom{display:flex;align-items:center;gap:4px}
.zoom .btn{padding:4px 8px}
.zoom output{min-width:46px;text-align:center;font:12.5px var(--mono);color:var(--muted);font-variant-numeric:tabular-nums}
.viewport{flex:1;overflow:auto;min-height:0;cursor:grab;position:relative;
  background-color:var(--ground);
  background-image:linear-gradient(var(--mat-line-strong) 1px,transparent 1px),linear-gradient(90deg,var(--mat-line-strong) 1px,transparent 1px),linear-gradient(var(--mat-line) 1px,transparent 1px),linear-gradient(90deg,var(--mat-line) 1px,transparent 1px);
  background-size:100px 100px,100px 100px,20px 20px,20px 20px}
.viewport.drag{cursor:grabbing}
.stage{display:inline-block;padding:28px;min-width:100%}
.sheet{background:var(--paper);box-shadow:var(--shadow);border-radius:2px;display:inline-block;line-height:0;margin:0 auto}
.stage-inner{display:flex;flex-direction:column;align-items:center;gap:10px}
.caption{font:500 11px/1.3 var(--cond);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sheet svg{display:block}
.sheet svg .blk{cursor:pointer}
.sheet svg .blk:hover .shape{fill:#EEF6F1}
.sheet.stale{opacity:.45}

.legend{display:flex;gap:16px;flex-wrap:wrap;align-items:center;padding:8px 14px;border-top:1px solid var(--rule);background:var(--panel-2);font-size:12px;color:var(--muted);min-height:44px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend svg{flex:none}
.legend svg *{fill:none;stroke:var(--ink);stroke-width:1.2}
.legend .std{margin-left:auto;font:500 11px/1 var(--cond);letter-spacing:.08em;text-transform:uppercase}

.ai-note{font-size:12px;color:var(--muted)}
.spin{width:12px;height:12px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}

/* ---------- Шапка: документ и аккаунт ---------- */
.app{grid-template-rows:auto auto 1fr}
.brand{color:var(--ink);text-decoration:none}
.doc{display:flex;align-items:center;gap:10px;min-width:0;flex:1}
.doc-title{min-width:120px;max-width:360px;width:100%;border:1px solid transparent;background:transparent;border-radius:6px;padding:5px 9px;font:500 15px/1.3 var(--ui)}
.doc-title:hover{border-color:var(--rule)}
.doc-title:focus{border-color:var(--accent);background:var(--editor);outline:none}
.save-state{font-size:12.5px;color:var(--muted);white-space:nowrap}
.save-state.dirty{color:var(--warn)}
.account{display:flex;align-items:center;gap:8px;margin-left:auto}
a.btn{text-decoration:none;color:var(--ink)}
.user-menu{position:relative}
.user-menu summary{list-style:none;display:flex;align-items:center;gap:8px;cursor:pointer;border:1px solid var(--rule);border-radius:999px;padding:3px 10px 3px 3px;background:var(--editor);font-size:13px}
.user-menu summary::-webkit-details-marker{display:none}
.avatar{width:26px;height:26px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font:600 12px/1 var(--cond);letter-spacing:.04em}
.user-menu .menu{position:absolute;right:0;top:calc(100% + 6px);min-width:200px;background:var(--editor);border:1px solid var(--rule);border-radius:8px;box-shadow:var(--shadow);padding:6px;z-index:20;display:flex;flex-direction:column}
.user-menu .menu .who{padding:6px 10px 8px;border-bottom:1px solid var(--rule-soft);margin-bottom:4px;font-size:12.5px;color:var(--muted);overflow-wrap:anywhere}
.user-menu .menu a,.user-menu .menu button{border:0;background:none;text-align:left;padding:7px 10px;border-radius:5px;cursor:pointer;font-size:13.5px;color:var(--ink);text-decoration:none}
.user-menu .menu a:hover,.user-menu .menu button:hover{background:var(--panel-2)}
.toolbar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:8px 18px;background:var(--panel-2);border-bottom:1px solid var(--rule)}
.toolbar .opts{margin-left:auto}

/* ---------- Поля и кнопки форм ---------- */
.input{width:100%;border:1px solid var(--rule);background:var(--editor);border-radius:6px;padding:8px 11px;font-size:14px}
.input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}
.stack{display:flex;flex-direction:column;gap:14px}
.fld{display:flex;flex-direction:column;gap:6px}
.fld > span{font:500 11px/1 var(--cond);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.fld small{color:var(--muted);font-size:12px}
.form-err{color:var(--error);font-size:13px;min-height:1em}
.form-err:empty{display:none}
.btn.wide{justify-content:center;padding:9px 14px;font-size:14px}
.btn.danger{color:var(--error);border-color:color-mix(in srgb,var(--error) 45%,var(--rule))}
.btn.danger:hover{background:var(--error-soft)}
.btn.ghost{border-color:transparent;background:none}
.btn.ghost:hover{background:var(--panel-2)}

/* ---------- Диалоги ---------- */
dialog.dlg{border:1px solid var(--rule);border-radius:12px;padding:0;width:min(420px,calc(100vw - 32px));background:var(--editor);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.25)}
dialog.dlg::backdrop{background:rgba(12,18,15,.45)}
.dlg-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:16px}
.dlg h2{margin:0;font:600 20px/1.2 var(--cond);letter-spacing:.01em;text-wrap:balance}
.dlg p{margin:0;color:var(--muted);font-size:13.5px}
.dlg-actions{display:flex;gap:8px;justify-content:flex-end}
.tabs{display:flex;border-bottom:1px solid var(--rule);gap:4px}
.tabs button{border:0;background:none;padding:8px 4px;margin-right:14px;cursor:pointer;color:var(--muted);font:500 14px var(--ui);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent)}
.dlg-close{position:absolute;top:10px;right:10px}

/* ---------- Уведомление ---------- */
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--ink);color:var(--ground);padding:9px 16px;border-radius:8px;font-size:13.5px;box-shadow:var(--shadow);z-index:50;max-width:calc(100vw - 32px)}
.toast.err{background:var(--error);color:#fff}

/* ---------- Личный кабинет ---------- */
.acct{min-height:100vh;display:flex;flex-direction:column}
.acct .top{position:sticky;top:0;z-index:10}
.page{width:100%;max-width:1240px;margin:0 auto;padding:28px 24px 60px;display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.page-head{display:flex;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.page-head h1{margin:0;font:600 28px/1.1 var(--cond);letter-spacing:.01em}
.page-head .count{color:var(--muted);font-size:13.5px;font-variant-numeric:tabular-nums}
.page-head .tools{display:flex;gap:8px;margin-left:auto;flex-wrap:wrap}
.page-head .input{width:220px;padding:6px 10px}
.page-head select{padding-top:6px;padding-bottom:6px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--rule);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:var(--muted);box-shadow:var(--shadow)}
.thumb{display:block;height:210px;overflow:hidden;text-decoration:none;background-color:var(--ground);
  background-image:linear-gradient(var(--mat-line) 1px,transparent 1px),linear-gradient(90deg,var(--mat-line) 1px,transparent 1px);background-size:12px 12px;
  padding:12px;border-bottom:1px solid var(--rule)}
.thumb .paper{background:var(--paper);width:100%;height:100%;border-radius:2px;box-shadow:0 1px 3px rgba(0,0,0,.12);overflow:hidden;display:flex;justify-content:center}
.thumb svg{width:100%;height:100%;display:block}
.thumb .paper.fail{align-items:center;color:#6b756f;font-size:12px}
.card-body{padding:12px 14px 12px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-title{font-weight:600;font-size:14.5px;color:var(--ink);text-decoration:none;overflow-wrap:anywhere;line-height:1.3}
.card-title:hover{color:var(--accent)}
.card-meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;flex-wrap:wrap}
.tag{font:500 10.5px/1 var(--cond);letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--rule);border-radius:4px;padding:3px 6px;color:var(--ink)}
.card-actions{display:flex;gap:2px;margin-top:auto;padding-top:6px;border-top:1px solid var(--rule-soft)}
.card-actions .btn{padding:4px 8px;font-size:12.5px}
.card-actions .btn.danger{margin-left:auto;border-color:transparent}
.empty{border:1px dashed var(--rule);border-radius:12px;padding:44px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;background:var(--panel)}
.empty h2{margin:0;font:600 20px var(--cond)}
.empty p{margin:0;color:var(--muted);max-width:44ch}
.side{display:flex;flex-direction:column;gap:18px;position:sticky;top:84px}
.panel{background:var(--panel);border:1px solid var(--rule);border-radius:10px;padding:18px}
.panel h2{margin:0 0 14px;font:600 12px/1 var(--cond);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.panel .line{display:flex;justify-content:space-between;gap:10px;font-size:13px;padding:6px 0;border-bottom:1px solid var(--rule-soft)}
.panel .line:last-of-type{border-bottom:0}
.panel .line span:first-child{color:var(--muted)}
.panel .line span:last-child{overflow-wrap:anywhere;text-align:right}
.panel-actions{display:flex;gap:8px;margin-top:14px}
.panel .note{margin:0;color:var(--muted);font-size:13px}
.auth-wrap{flex:1;display:grid;place-items:center;padding:40px 16px}
.auth-card{width:min(420px,100%);background:var(--editor);border:1px solid var(--rule);border-radius:12px;box-shadow:var(--shadow)}
.loading{color:var(--muted);padding:40px 0;text-align:center}

@media (max-width:860px){
  .app{height:auto}
  .work{grid-template-columns:1fr}
  .editor-pane{border-right:0;border-bottom:1px solid var(--rule)}
  .editor{height:46vh}
  .viewport{height:70vh;flex:none}
  .opts{margin-left:0}
  .toolbar .opts{margin-left:0}
  .page{grid-template-columns:1fr;padding:20px 16px 48px}
  .side{position:static}
  .page-head .tools{margin-left:0;width:100%}
  .page-head .input{flex:1;width:auto}
}