/* MfiSerli Office — Premium Dark v2, автономные стили без внешних CDN. */
:root,html[data-theme="night"]{
  color-scheme:dark;
  --bg:#090B12;--panel:#101522;--panel2:#151C2B;--panel3:#1C2638;
  --line:rgba(160,175,205,.14);--line2:rgba(160,175,205,.24);
  --txt:#f4f6fc;--txt2:#a3aec2;--txt3:#7c879b;
  --brand:#6A58E8;--brand2:#a092ff;--brand3:#5846CC;--brand-soft:rgba(106,88,232,.14);
  --ok:#48c99a;--err:#f07883;--warn:#e9b968;--info:#55b9e8;
  --glass:rgba(13,17,28,.78);--shadow:0 28px 70px -38px rgba(0,0,0,.9),0 8px 26px -18px rgba(92,80,220,.4);
  --glow:radial-gradient(ellipse at 15% -10%,rgba(106,88,232,.18),transparent 55%),radial-gradient(ellipse at 95% 0%,rgba(85,185,232,.12),transparent 45%);
  --grad:linear-gradient(135deg,var(--brand2),var(--brand) 55%,var(--brand3));
  --font:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,system-ui,sans-serif;
  --mono:ui-monospace,'SF Mono',SFMono-Regular,Menlo,Consolas,monospace;
  --r:14px;--r-lg:20px;--dur:160ms cubic-bezier(.2,.8,.2,1);
}
html[data-theme="graphite"]{--bg:#101114;--panel:#16181d;--panel2:#1c1f26;--panel3:#23262f;--line:#262a33;--line2:#343a46;--txt:#f2f3f6;--txt2:#a9aeb9;--txt3:#8A909B;--brand:#657385;--brand2:#a9b6c7;--brand3:#4F5C6B;--brand-soft:rgba(160,175,195,.14);--glass:rgba(20,22,27,.84)}
html[data-theme="ocean"]{--bg:#061018;--panel:#0b1a24;--panel2:#102430;--panel3:#152e3d;--line:#17303d;--line2:#22485c;--txt:#e9f4fb;--txt2:#9db8c7;--txt3:#7899AB;--brand:#1F78A0;--brand2:#67c8ec;--brand3:#155D7C;--brand-soft:rgba(49,169,216,.15);--glass:rgba(8,23,33,.84)}
html[data-theme="sand"]{color-scheme:light;--bg:#f6f3ee;--panel:#fff;--panel2:#f1ece4;--panel3:#e7e0d5;--line:#e2dacd;--line2:#cfc5b5;--txt:#20211f;--txt2:#5c5f5a;--txt3:#676961;--brand:#9E562F;--brand2:#8F5A3A;--brand3:#7A3E20;--brand-soft:rgba(158,86,47,.13);--glass:rgba(255,253,248,.9);--shadow:0 24px 56px -36px rgba(90,70,50,.5)}
html[data-theme="light"]{color-scheme:light;--bg:#f6f7fa;--panel:#fff;--panel2:#f1f3f8;--panel3:#e9edf5;--line:#e3e7ef;--line2:#cfd6e3;--txt:#161a22;--txt2:#515a6b;--txt3:#626A78;--brand:#5c4bd8;--brand2:#6455D6;--brand3:#4334b4;--brand-soft:rgba(92,75,216,.1);--glass:rgba(255,255,255,.9);--shadow:0 24px 56px -36px rgba(30,40,70,.3)}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{background:var(--bg);color:var(--txt);font-family:var(--font);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow:hidden}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
a{color:var(--brand2);text-decoration:none}
input,textarea,select{outline:none;background:var(--panel);border:1px solid var(--line);border-radius:10px}
input:focus,textarea:focus,select:focus{border-color:color-mix(in srgb,var(--brand2) 65%,var(--line));box-shadow:0 0 0 3px color-mix(in srgb,var(--brand2) 16%,transparent)}
:where(button,a,input,textarea,select,[tabindex]):focus-visible{outline:2px solid var(--brand2);outline-offset:2px}
button:not(:disabled):hover{transform:translateY(-1px)}
button:not(:disabled):active{transform:translateY(0) scale(.985)}
.hide,[hidden]{display:none!important}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.muted{color:var(--txt3);font-size:12px}
.grow{flex:1}
.sep{width:1px;height:20px;background:var(--line);margin:0 4px}
.pill{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border:1px solid var(--line);border-radius:999px;background:var(--panel2);color:var(--txt2);font-size:11px;font-weight:600;white-space:nowrap}
.pill.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 45%,var(--line))}
.pill.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,var(--line))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 14px;border:1px solid transparent;border-radius:11px;background:var(--grad);color:#fff;font-size:12.5px;font-weight:650;white-space:nowrap;transition:all var(--dur)}
.btn:hover{filter:brightness(1.08);box-shadow:0 12px 26px -14px color-mix(in srgb,var(--brand) 80%,transparent)}
.btn.ghost{background:var(--panel2);color:var(--txt);border-color:var(--line)}
.btn.small{padding:6px 10px;font-size:11.5px;border-radius:9px}
.btn.wide{width:100%;margin-bottom:7px}
.btn:disabled{opacity:.55;cursor:progress;transform:none}
.icon-btn{width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--line);border-radius:9px;background:var(--panel2);font-size:15px}
.select{padding:7px 10px;font-size:12px}
.link-btn{color:var(--brand2);font-size:11.5px;padding:0}

.shell{height:100%;display:flex;flex-direction:column;background:var(--glow),var(--bg)}
.topbar{display:flex;align-items:center;gap:14px;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--glass);backdrop-filter:blur(18px);box-shadow:0 10px 30px -28px rgba(0,0,0,.9);z-index:5}
.brand{display:flex;align-items:center;gap:9px;font-size:14px;letter-spacing:-.02em;white-space:nowrap}
.brand .mark{width:30px;height:30px;display:grid;place-items:center;border-radius:10px;background:var(--grad);color:#fff;font-weight:800;box-shadow:0 8px 22px -10px var(--brand)}
.doc-title-wrap{display:flex;align-items:center;gap:8px;min-width:0;flex:1;max-width:420px}
.doc-title{flex:1;min-width:0;padding:8px 11px;background:var(--panel2);font-weight:600}
.save-state{font-size:11px;color:var(--txt3);white-space:nowrap}
.save-state.saved{color:var(--ok)}
.top-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:flex-end}

.workbench{flex:1;min-height:0;display:grid;grid-template-columns:244px minmax(0,1fr) 330px}
.files,.ai-panel{min-height:0;display:flex;flex-direction:column;background:var(--glass);backdrop-filter:blur(16px)}
.files{border-right:1px solid var(--line);padding:14px;overflow:auto}
.ai-panel{border-left:1px solid var(--line)}
.side-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.side-head h2,.side-head h3{font-size:13px;letter-spacing:-.01em}
.new-row{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:12px}
.new-chip{display:flex;flex-direction:column;align-items:center;gap:3px;padding:10px 4px;border:1px solid var(--line);border-radius:12px;background:var(--panel2);font-size:10.5px;font-weight:650;transition:all var(--dur)}
.new-chip b{font-size:17px;color:var(--brand2)}
.new-chip:hover{border-color:color-mix(in srgb,var(--brand2) 55%,var(--line));background:var(--brand-soft)}
.file-actions{margin-bottom:14px}
.list-label{display:flex;justify-content:space-between;margin:12px 0 7px;color:var(--txt3);font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.07em}
.doc-list{display:grid;gap:5px}
.doc-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 9px;border:1px solid transparent;border-radius:10px;background:var(--panel2);text-align:left;font-size:12px}
.doc-item:hover,.doc-item.on{border-color:var(--line2);background:var(--panel3)}
.doc-item .kind{width:22px;height:22px;display:grid;place-items:center;border-radius:7px;background:var(--brand-soft);color:var(--brand2);font-weight:800;flex:0 0 auto}
.doc-item .name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.doc-item .del{color:var(--txt3);font-size:14px;padding:0 3px}
.doc-empty{padding:10px;border:1px dashed var(--line);border-radius:10px;color:var(--txt3);font-size:11.5px;text-align:center}
.side-foot{margin-top:auto;padding-top:14px;display:flex;flex-wrap:wrap;gap:6px}

.editor{min-width:0;min-height:0;display:flex;flex-direction:column;background:color-mix(in srgb,var(--bg) 80%,var(--panel))}
.tabs{display:flex;gap:4px;padding:9px 12px 0;border-bottom:1px solid var(--line);background:var(--glass)}
.tab{padding:8px 16px;border:1px solid transparent;border-bottom:none;border-radius:11px 11px 0 0;color:var(--txt2);font-size:12.5px;font-weight:650}
.tab.on{color:var(--txt);background:var(--panel2);border-color:var(--line)}
.view{flex:1;min-height:0;display:flex;flex-direction:column}
.toolbar{display:flex;align-items:center;gap:5px;flex-wrap:wrap;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--glass)}
.toolbar button{min-width:30px;height:30px;padding:0 9px;border:1px solid var(--line);border-radius:9px;background:var(--panel2);font-size:12px;font-weight:650}
.toolbar button:hover{background:var(--brand-soft);border-color:color-mix(in srgb,var(--brand2) 45%,var(--line))}
.paper-scroll,.grid-scroll,.slide-stage{flex:1;min-height:0;overflow:auto;padding:18px}
.paper{width:min(820px,100%);min-height:1050px;margin:0 auto;padding:56px 62px;border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:var(--shadow);color:var(--txt);font-size:15px;line-height:1.75;outline:none}
.paper:focus{box-shadow:0 0 0 3px color-mix(in srgb,var(--brand2) 16%,transparent),var(--shadow)}
.paper h1{font-size:30px;letter-spacing:-.035em;margin:0 0 18px}
.paper h2{font-size:22px;letter-spacing:-.025em;margin:26px 0 10px}
.paper h3{font-size:17px;margin:20px 0 8px}
.paper p{margin:0 0 12px}
.paper ul,.paper ol{padding-left:24px;margin:0 0 14px}
.paper blockquote{border-left:3px solid var(--brand);padding-left:14px;color:var(--txt2);margin:14px 0}
.paper pre{font-family:var(--mono);background:var(--panel2);padding:12px;border-radius:10px;overflow:auto;white-space:pre-wrap}
.ai-insert{margin:22px 0;padding:16px;border:1px solid color-mix(in srgb,var(--brand2) 40%,var(--line));border-radius:14px;background:var(--brand-soft);white-space:pre-wrap;overflow-wrap:anywhere}

.excel-tools{flex-wrap:nowrap;overflow-x:auto}
.cell-ref{min-width:52px;text-align:center;padding:6px 8px;border:1px solid var(--line);border-radius:9px;background:var(--panel2);font-family:var(--mono);font-size:12px;font-weight:700}
.formula{flex:1;min-width:180px;padding:7px 10px;font-family:var(--mono);font-size:12px}
.grid{border-collapse:separate;border-spacing:0;min-width:100%;font-family:var(--mono);font-size:12px}
.grid th,.grid td{position:sticky;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:0}
.grid th{top:0;z-index:2;background:var(--panel3);color:var(--txt2);font-weight:700;text-align:center;height:26px;min-width:96px}
.grid th.corner{left:0;z-index:4;min-width:46px}
.grid th.row-head,.grid td.row-head{position:sticky;left:0;z-index:1;background:var(--panel3);color:var(--txt2);text-align:center;min-width:46px;width:46px}
.grid td.cell-input{padding:0}
.grid input{width:100%;min-width:96px;height:28px;padding:4px 7px;border:none;border-radius:0;background:transparent;color:var(--txt);font-family:var(--mono);font-size:12px}
.grid input:focus{background:var(--brand-soft);box-shadow:inset 0 0 0 2px var(--brand2);outline:none;position:relative;z-index:3}
.grid input.formula-cell{color:var(--info)}

.ppt-layout{flex:1;min-height:0;display:grid;grid-template-columns:190px minmax(0,1fr)}
.slide-list-wrap{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--line);padding:12px;background:var(--glass)}
.slide-list{display:grid;gap:8px;overflow:auto;align-content:start}
.slide-thumb{position:relative;width:100%;aspect-ratio:16/9;padding:9px;border:1px solid var(--line);border-radius:10px;background:var(--panel2);text-align:left;overflow:hidden;font-size:10px}
.slide-thumb.on{border-color:var(--brand2);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand2) 25%,transparent)}
.slide-thumb b{display:block;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}
.slide-thumb small{color:var(--txt3);display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slide-thumb .num{position:absolute;right:6px;bottom:5px;color:var(--txt3)}
.slide-stage{display:flex;flex-direction:column;gap:10px;min-height:0}
.slide-toolbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.slide-canvas{position:relative;width:100%;max-width:900px;aspect-ratio:16/9;margin:auto;padding:6% 7%;border:1px solid var(--line);border-radius:16px;background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 22%,var(--panel)),var(--panel));box-shadow:var(--shadow);display:flex;flex-direction:column;gap:18px}
.slide-title{width:100%;padding:8px 10px;border:none;border-bottom:2px solid color-mix(in srgb,var(--brand2) 45%,transparent);border-radius:0;background:transparent;font-size:clamp(20px,3vw,34px);font-weight:750;letter-spacing:-.035em}
.slide-bullets{flex:1;width:100%;padding:10px;border:none;border-radius:0;background:transparent;font-size:clamp(13px,1.7vw,19px);line-height:1.8;resize:none}
.slide-brand{position:absolute;right:5%;bottom:4%;color:var(--txt3);font-size:10px;letter-spacing:.08em;text-transform:uppercase}
.slide-notes{width:100%;max-width:900px;margin:0 auto;padding:9px 11px;font-size:12px;resize:vertical}

.statusbar{display:flex;align-items:center;gap:10px;padding:7px 14px;border-top:1px solid var(--line);background:var(--glass);color:var(--txt3);font-size:11px}

.ai-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px;border-bottom:1px solid var(--line)}
.ai-head .pill{display:block;flex:0 1 auto;min-width:0;max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ai-orb{display:inline-grid;place-items:center;width:26px;height:26px;margin-right:7px;border-radius:9px;background:var(--grad);color:#fff}
.ai-messages{flex:1;min-height:120px;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.ai-msg{max-width:92%;padding:10px 12px;border:1px solid var(--line);border-radius:14px;font-size:12.5px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere}
.ai-msg.bot{align-self:flex-start;background:var(--panel2);border-bottom-left-radius:4px}
.ai-msg.user{align-self:flex-end;background:var(--brand-soft);border-bottom-right-radius:4px}
.ai-msg .meta{display:block;margin-top:6px;color:var(--txt3);font-size:10px}
.ai-chips{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px 10px}
.ai-chip{padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:var(--panel2);color:var(--txt2);font-size:11px;font-weight:600}
.ai-chip:hover,.ai-chip[aria-pressed="true"]{background:var(--brand-soft);border-color:color-mix(in srgb,var(--brand2) 55%,var(--line));color:var(--txt)}
.ai-result{margin:0 14px 10px;padding:11px;border:1px solid color-mix(in srgb,var(--brand2) 40%,var(--line));border-radius:14px;background:var(--panel2)}
.ai-result-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:7px;font-size:11.5px}
.ai-result pre{max-height:180px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font-family:var(--font);font-size:12px;line-height:1.55}
.ai-result-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:9px}
.ai-compose{display:flex;gap:7px;padding:12px 14px;border-top:1px solid var(--line)}
.ai-compose textarea{flex:1;min-width:0;padding:9px 11px;resize:vertical;font-size:12.5px}
.ai-send{width:38px;height:38px;padding:0;border-radius:12px;font-size:17px}
.ai-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 14px 12px}

.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:18px;background:rgba(3,5,10,.72);backdrop-filter:blur(8px)}
.modal-card{width:min(420px,100%);padding:20px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--glass);box-shadow:var(--shadow)}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.modal-head h2{font-size:17px}
.modal-card p{font-size:12px;margin-bottom:14px}
.modal-card form{display:grid;gap:8px}
.modal-card label{font-size:11.5px;color:var(--txt2)}
.modal-card input{padding:10px 11px}
.modal-actions{display:flex;gap:8px;margin-top:6px}
.auth-message{margin-top:10px;font-size:11.5px;color:var(--warn);min-height:16px}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:120;padding:10px 16px;border:1px solid var(--line);border-radius:12px;background:var(--glass);box-shadow:var(--shadow);color:var(--txt);font-size:12.5px}
.mobile-ai-scrim{display:none}

@media(max-width:1180px){.workbench{grid-template-columns:210px minmax(0,1fr) 290px}.top-actions .btn.ghost:last-child{display:none}}
@media(max-width:980px){
  .workbench{grid-template-columns:190px minmax(0,1fr)}
  .ai-panel{position:fixed;right:0;top:0;bottom:0;width:min(360px,90vw);z-index:60;transform:translateX(105%);transition:transform var(--dur);box-shadow:-20px 0 60px -30px rgba(0,0,0,.9)}
  .ai-panel.open{transform:none}
  .mobile-ai-scrim:not([hidden]){display:block;position:fixed;inset:0;z-index:55;background:rgba(3,5,10,.5)}
  .paper{padding:36px 32px;min-height:800px}
}
@media(max-width:680px){
  .workbench{grid-template-columns:1fr}
  .files{display:none}
  .topbar{flex-wrap:wrap;padding:9px 11px;gap:8px}
  .doc-title-wrap{max-width:none;order:3;flex-basis:100%}
  .top-actions .select,.top-actions #saveCloudBtn,.top-actions .btn.ghost:last-child{display:none}
  .ppt-layout{grid-template-columns:1fr}
  .slide-list-wrap{display:none}
  .slide-canvas{padding:7%}
  .statusbar span:last-child{display:none}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media print{
  body{background:#fff;color:#000;overflow:visible}
  .topbar,.files,.ai-panel,.tabs,.toolbar,.statusbar,.modal,.toast,.slide-list-wrap,.slide-toolbar,.slide-notes{display:none!important}
  .workbench{display:block}.editor,.view,.paper-scroll{display:block;height:auto;overflow:visible}
  .paper{width:100%;min-height:0;border:none;box-shadow:none;background:#fff;color:#000;padding:0}
  #excelView,#pptView{display:none!important}
}