/* Doc-Colab · phương án A "Giấy" */
@font-face{font-family:'Be Vietnam Pro';font-weight:400;font-display:swap;src:url(fonts/be-vietnam-pro-vietnamese-400-normal.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-weight:400;font-display:swap;src:url(fonts/be-vietnam-pro-latin-ext-400-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Be Vietnam Pro';font-weight:400;font-display:swap;src:url(fonts/be-vietnam-pro-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Be Vietnam Pro';font-weight:500;font-display:swap;src:url(fonts/be-vietnam-pro-vietnamese-500-normal.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-weight:500;font-display:swap;src:url(fonts/be-vietnam-pro-latin-ext-500-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Be Vietnam Pro';font-weight:500;font-display:swap;src:url(fonts/be-vietnam-pro-latin-500-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Be Vietnam Pro';font-weight:600;font-display:swap;src:url(fonts/be-vietnam-pro-vietnamese-600-normal.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-weight:600;font-display:swap;src:url(fonts/be-vietnam-pro-latin-ext-600-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Be Vietnam Pro';font-weight:600;font-display:swap;src:url(fonts/be-vietnam-pro-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'JetBrains Mono';font-weight:400;font-display:swap;src:url(fonts/jetbrains-mono-latin-400-normal.woff2) format('woff2')}

:root{
  --bg:#FBFBFA;--paper:#FFFFFF;--side:#F3F3F1;--hover:#EBEBE8;--active:#E4E4E0;
  --ink:#1F2328;--ink2:#555B63;--ink3:#767B82;--line:#E4E4E0;--line2:#EDEDEA;
  --acc:#2F5FD0;--accH:#2853B8;--accS:#E9EEFB;--onAcc:#FFFFFF;
  --ok:#2E7A4F;--okS:#E5F1E9;--warn:#8A6100;--warnS:#FAF0D9;--bad:#B3261E;--badS:#FBE8E6;--hl:#F8E7A6;--hlB:#E5C24A;
  --shadow-1:0 1px 2px #1F232808,0 8px 24px #1F23280A;--shadow-2:0 2px 6px #1F23280F,0 16px 40px #1F232814;
  --r:8px;--r2:10px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#17181A;--paper:#1D1F22;--side:#141517;--hover:#25282C;--active:#2C3035;
  --ink:#E6E7E9;--ink2:#B2B6BC;--ink3:#8C9198;--line:#2E3237;--line2:#26292D;
  --acc:#7A9CF0;--accH:#93AFF3;--accS:#24304A;--onAcc:#0E1830;--ok:#6CC08F;--okS:#1E3127;--warn:#E0B357;--warnS:#3A2F16;--bad:#F08A80;--badS:#3D2220;--hl:#5A4A12;--hlB:#B38D1E;
  --shadow-1:0 1px 2px #0006,0 8px 24px #0005;--shadow-2:0 2px 6px #0008,0 16px 40px #0007}}
:root[data-theme=dark]{
  --bg:#17181A;--paper:#1D1F22;--side:#141517;--hover:#25282C;--active:#2C3035;
  --ink:#E6E7E9;--ink2:#B2B6BC;--ink3:#8C9198;--line:#2E3237;--line2:#26292D;
  --acc:#7A9CF0;--accH:#93AFF3;--accS:#24304A;--onAcc:#0E1830;--ok:#6CC08F;--okS:#1E3127;--warn:#E0B357;--warnS:#3A2F16;--bad:#F08A80;--badS:#3D2220;--hl:#5A4A12;--hlB:#B38D1E;
  --shadow-1:0 1px 2px #0006,0 8px 24px #0005;--shadow-2:0 2px 6px #0008,0 16px 40px #0007}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:'Be Vietnam Pro',system-ui,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}
.mono,code{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:12.5px}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition-duration:0s!important;animation-duration:0s!important}}

/* layout */
.shell{display:flex;min-height:100dvh}
.side{width:248px;flex:none;background:var(--side);border-right:1px solid var(--line);padding:16px 12px;display:flex;flex-direction:column;gap:20px;position:sticky;top:0;height:100dvh;overflow:auto}
.ws{display:flex;align-items:center;gap:10px;padding:4px 8px;font-weight:600;color:var(--ink)}.ws:hover{text-decoration:none}
.logo{width:24px;height:24px;border-radius:6px;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-size:12px;font-weight:600;flex:none}
.searchbox{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--paper);border-radius:var(--r);padding:0 10px;height:36px}
.searchbox input{border:0;background:transparent;outline:0;flex:1;min-width:0;font-size:13px}
.kbd{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--ink3)}
.grp h6{font-size:12px;font-weight:500;color:var(--ink3);padding:0 8px 6px}
.item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 8px;border-radius:6px;color:var(--ink2);font-size:13.5px;cursor:pointer;min-height:32px}
.item:hover{background:var(--hover);text-decoration:none}
.item.on{background:var(--active);color:var(--ink);font-weight:500}
.item .t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item .n{color:var(--ink3);font-size:12px;flex:none}
.side .foot{margin-top:auto;display:flex;flex-direction:column;gap:8px}
.me{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:6px;font-size:13px;color:var(--ink2)}
main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{height:52px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;border-bottom:1px solid var(--line2);position:sticky;top:0;background:var(--bg);z-index:5}
.crumb{color:var(--ink3);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.crumb b{color:var(--ink2);font-weight:500}
.top .right{display:flex;align-items:center;gap:10px}
.btn.menu-btn{display:none}
.side-scrim{display:none}

/* controls */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);background:var(--paper);border-radius:var(--r);padding:0 12px;height:34px;font-size:13px;cursor:pointer;white-space:nowrap;transition:background-color .15s ease,border-color .15s ease}
.btn:hover{background:var(--hover)}
a.btn{color:var(--ink)}a.btn:hover{text-decoration:none}
.btn:active{transform:scale(.97)}
.btn.pri{background:var(--acc);border-color:var(--acc);color:var(--onAcc);font-weight:500}
.btn.pri:hover{background:var(--accH)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.small{height:28px;padding:0 9px;font-size:12.5px}
.btn.danger{color:var(--bad)}
.btn[disabled]{opacity:.55;pointer-events:none}
.input,textarea.input,select.input{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:var(--r);padding:8px 10px;font-size:14px}
textarea.input{resize:vertical;min-height:72px;line-height:1.55}
label.lb{display:block;font-size:13px;font-weight:500;margin-bottom:4px}
.help{font-size:12.5px;color:var(--ink3);margin-top:4px}
.err{font-size:12.5px;color:var(--bad);margin-top:4px}
.av{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:600;flex:none;background:var(--accS);color:var(--acc);overflow:hidden}
.av img{width:100%;height:100%;object-fit:cover}
.av.agent{border-radius:8px;background:var(--ink);color:var(--bg)}
.av.sm{width:24px;height:24px;font-size:10px}
.av.xs{width:20px;height:20px;font-size:9px}.av.xs.agent{border-radius:6px}
.av.here{box-shadow:0 0 0 2px var(--bg),0 0 0 3.5px var(--ok)}
.stack .av+.av{margin-left:-3px}
.stack .av{box-shadow:0 0 0 2px var(--bg)}.stack .av.here{box-shadow:0 0 0 2px var(--bg),0 0 0 3.5px var(--ok)}
.stack{display:flex;gap:0;padding:0 4px}
.chip{display:inline-flex;align-items:center;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:500;background:var(--hover);color:var(--ink2);white-space:nowrap}
.chip.warn{background:var(--warnS);color:var(--warn)}.chip.ok{background:var(--okS);color:var(--ok)}.chip.bad{background:var(--badS);color:var(--bad)}.chip.acc{background:var(--accS);color:var(--acc)}
.chip.kind{padding:0 7px;font-size:11px;justify-self:start}
.tag{font-size:11px;font-weight:500;color:var(--ink2);background:var(--hover);border-radius:4px;padding:0 5px}

/* home */
.page{padding:40px 48px;max-width:1100px;width:100%}
.page h1{font-size:28px;line-height:1.2;font-weight:600;letter-spacing:-0.02em}
.page .lead{color:var(--ink2);margin-top:6px}
.rows{margin-top:24px;border-top:1px solid var(--line2)}
.row{display:grid;grid-template-columns:44px 1fr 140px 150px 70px;gap:12px;align-items:center;padding:12px 8px;border-bottom:1px solid var(--line2);color:var(--ink);cursor:pointer}
.row:hover{background:var(--hover);text-decoration:none}
.row .ic{font-size:16px;text-align:center}
.row .tt{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .sub{color:var(--ink3);font-size:12.5px}
.empty{padding:48px 0;color:var(--ink2);max-width:520px}
.empty b{display:block;color:var(--ink);font-size:16px;margin-bottom:6px}
.skel{height:14px;border-radius:4px;background:linear-gradient(90deg,var(--hover),var(--line2),var(--hover));background-size:200% 100%;animation:sk 1.2s linear infinite}
@keyframes sk{to{background-position:-200% 0}}

/* doc */
.docwrap{display:grid;grid-template-columns:minmax(0,1fr) 340px;align-items:start}
.docwrap.wide{grid-template-columns:minmax(0,1fr)}
.docwrap.wide .doc{max-width:1360px;padding:40px 40px 120px}
.docwrap.wide .margin{display:none}
.docwrap.wide.cm{grid-template-columns:minmax(0,1fr) 340px}
.docwrap.wide.cm .margin{display:flex}
.doc{padding:48px 64px 120px 96px;max-width:900px;min-width:0}
.doc h1.title{font-size:32px;line-height:1.2;font-weight:600;letter-spacing:-0.02em;max-width:640px;outline:0}
.meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:14px 0 28px;color:var(--ink3);font-size:13px}
.blk{position:relative;max-width:660px;border-radius:6px;transition:background-color .2s ease}
.blk.flash{background:var(--accS)}
.blk .tools{position:absolute;right:-92px;top:2px;display:flex;gap:2px;opacity:0;transition:opacity .12s ease}
.blk:hover .tools,.blk:focus-within .tools{opacity:1}
.blk .tools button{width:28px;height:28px;border-radius:6px;border:0;background:transparent;color:var(--ink3);cursor:pointer;display:grid;place-items:center}
.blk .tools button:hover{background:var(--hover);color:var(--ink)}
.blk .cnt{position:absolute;right:-30px;top:4px;font-size:11px;color:var(--acc);background:var(--accS);border-radius:999px;padding:0 6px;cursor:pointer}
.blk.has-rv{padding-right:120px}
.blk .rv{position:absolute;right:0;top:2px;display:flex;justify-content:flex-end;min-width:88px}
.blk .rv .chip{font-size:11.5px;padding:1px 9px}
.blk .rv .acts{display:none;gap:4px}
.blk .rv .acts button{border:1px solid var(--line);background:var(--paper);border-radius:999px;font-size:11.5px;padding:0 9px;height:22px;cursor:pointer;color:var(--ink2)}
.blk .rv .acts button.ok:hover{background:var(--okS);color:var(--ok);border-color:transparent}
.blk .rv .acts button.bad:hover{background:var(--badS);color:var(--bad);border-color:transparent}
.blk .rv .acts button[disabled]{display:none}
.blk:hover .rv .acts,.blk:focus-within .rv .acts,.blk.sel .rv .acts{display:flex}
.blk:hover .rv .chip,.blk:focus-within .rv .chip,.blk.sel .rv .chip{display:none}
.rvnote{border-radius:var(--r);padding:10px 14px;margin:-12px 0 24px;font-size:13.5px;max-width:660px}
.rvnote.ok{background:var(--okS);color:var(--ok)}.rvnote.bad{background:var(--badS);color:var(--bad)}
.rvnote div{color:var(--ink);margin-top:2px}
.blk .lease{font-size:12px;color:var(--acc);margin-bottom:4px}
.b-h1{font-size:24px;font-weight:600;margin:28px 0 8px;letter-spacing:-0.01em}
.b-h2{font-size:18px;font-weight:600;margin:24px 0 6px}
.b-h3{font-size:15.5px;font-weight:600;margin:18px 0 4px}
.b-p{margin:6px 0}
.b-list{margin:6px 0;padding:0;list-style:none}
.b-list li{position:relative;margin:3px 0;padding-left:calc(26px + var(--lvl,0) * 24px)}
.b-list li::before{content:attr(data-mark);position:absolute;left:calc(var(--lvl,0) * 24px);width:20px;text-align:center;color:var(--ink2);pointer-events:none}
.b-list.num li::before{text-align:right;font-variant-numeric:tabular-nums}
.blk .mention,.b-p .mention{color:var(--acc);background:var(--accS);border-radius:4px;padding:0 3px;font-weight:500;white-space:nowrap}
.diff-add{background:var(--okS);color:var(--ok);text-decoration:none;border-radius:3px}
.diff-del{background:var(--badS);color:var(--bad);text-decoration:line-through;border-radius:3px}
.diffrow{border-left:3px solid var(--line);padding:6px 10px;margin:6px 0;white-space:pre-wrap;font-size:14px}
.diffrow.add{border-color:var(--ok)}.diffrow.del{border-color:var(--bad)}.diffrow.chg{border-color:var(--warn)}
.diffrow .k{display:block;font-size:11.5px;color:var(--ink3);margin-bottom:2px}
.b-todo{display:flex;gap:10px;align-items:flex-start;margin:6px 0}
.b-todo input{width:16px;height:16px;margin-top:4px;accent-color:var(--acc)}
.b-todo.done span,.b-todo.done [data-field]{color:var(--ink3);text-decoration:line-through}
.b-callout{display:flex;gap:10px;background:var(--side);border:1px solid var(--line2);border-radius:var(--r);padding:12px 14px;margin:10px 0}
.b-quote{border-left:3px solid var(--line);padding-left:14px;color:var(--ink2);margin:10px 0}
.b-hr{border:0;border-top:1px solid var(--line);margin:18px 0}
.b-code{background:var(--side);border:1px solid var(--line2);border-radius:var(--r);padding:12px 14px;overflow:auto;margin:10px 0;white-space:pre}
.b-img{margin:12px 0}.b-img img,.b-img video{max-width:100%;border-radius:var(--r);border:1px solid var(--line2)}.b-img figcaption{font-size:12.5px;color:var(--ink3);margin-top:4px}
.b-table{width:100%;border-collapse:collapse;margin:10px 0;font-size:13.5px}
.b-table th,.b-table td{border-bottom:1px solid var(--line2);padding:8px 10px;text-align:left;vertical-align:top}
.b-table th{font-weight:500;color:var(--ink2);font-size:12.5px}
details.b-toggle{margin:6px 0}details.b-toggle summary{cursor:pointer;font-weight:500}
mark.anc{background:var(--hl);color:inherit;border-radius:3px;padding:0 1px;border-bottom:2px solid var(--hlB);cursor:pointer}
/* editor */
.doc h1.title[contenteditable]:empty::before{content:attr(data-ph);color:var(--ink3)}
.savest{font-size:12px;color:var(--ink3)}.savest.error{color:var(--bad)}
.blocks{position:relative;max-width:660px}
.blocks .blk{max-width:none}
[data-field]{outline:0;white-space:pre-wrap;word-break:break-word;caret-color:var(--acc)}
[data-field][contenteditable]:empty::before{content:attr(data-ph);color:var(--ink3);pointer-events:none}
.b-p[data-field][contenteditable]:empty:not(:focus)::before,.tg-body[contenteditable]:empty:not(:focus)::before,figcaption[contenteditable]:empty:not(:focus)::before{content:''}
.blocks.editable .b-p{min-height:1.6em}
.gut{position:absolute;left:-54px;top:3px;display:flex;gap:1px;opacity:0;transition:opacity .12s ease-out}
.blk[data-type=heading1]>.gut{top:7px}.blk[data-type=heading2]>.gut{top:4px}.blk[data-type=heading3]>.gut{top:2px}
.blk[data-type=callout]>.gut{top:13px}.blk[data-type=code]>.gut{top:11px}
.blk:hover>.gut,.blk.focus>.gut{opacity:1}
.gut button{width:24px;height:24px;border:0;background:none;border-radius:5px;color:var(--ink3);cursor:pointer;display:grid;place-items:center;padding:0}
.gut button:hover{background:var(--hover);color:var(--ink)}
.gut .g-drag{cursor:grab}.gut .g-drag:active{cursor:grabbing}
.blk.dragging{opacity:.35}
.drop-line{position:absolute;left:0;right:0;height:3px;background:var(--acc);border-radius:2px;pointer-events:none;z-index:3}
.tail{min-height:140px;cursor:text;max-width:660px}
.blk>.lease{position:absolute;left:0;top:-15px;font-size:11px;line-height:14px;color:var(--acc);background:var(--bg);padding:0 4px 0 0;z-index:2;pointer-events:none}
.blk.leased{box-shadow:-10px 0 0 -8px var(--acc)}
.blk [data-locked]{opacity:.75}
.b-callout .cl-t{flex:1;min-width:0}
.b-todo .td-t{flex:1;min-width:0}
.b-toggle{margin:6px 0}
.b-toggle .tg-h{display:flex;gap:4px;align-items:flex-start}
.b-toggle .tg-s{flex:1;font-weight:500;min-width:0}
.tg-arrow{width:22px;height:22px;border:0;background:none;border-radius:4px;color:var(--ink3);cursor:pointer;display:grid;place-items:center;margin-top:1px;flex:none;transition:transform .15s ease-out}
.tg-arrow:hover{background:var(--hover);color:var(--ink)}
.tg-arrow.open{transform:rotate(90deg)}
.tg-body{padding-left:26px;margin-top:2px;min-height:1.6em}
.b-hrw{padding:6px 0;border-radius:4px;outline:0}.b-hrw:focus{background:var(--accS)}
.b-hrw .b-hr{margin:6px 0}
.b-tablew{overflow-x:auto}
.b-table th[data-field],.b-table td[data-field]{min-width:90px}
.b-table [data-field]:focus{background:var(--accS)}
.upl{display:flex;align-items:center;gap:8px;width:100%;justify-content:center;padding:28px;border:1px dashed var(--line);border-radius:var(--r);background:var(--side);color:var(--ink2);cursor:pointer;font:inherit}
.upl:hover{border-color:var(--acc);color:var(--acc)}
.pop{position:absolute;z-index:70;background:var(--paper);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-2);padding:6px;min-width:250px;max-height:340px;overflow:auto}
.pop .sec{font-size:11.5px;color:var(--ink3);padding:6px 8px 3px;font-weight:500}
.pop .it{display:flex;gap:10px;align-items:center;padding:5px 8px;border-radius:6px;cursor:pointer;font-size:13.5px;color:var(--ink)}
.pop .it.on,.pop .it:hover{background:var(--hover)}
.pop .it.danger{color:var(--bad)}
.pop .ti{width:28px;height:28px;border:1px solid var(--line);border-radius:6px;display:grid;place-items:center;font-size:12px;font-weight:600;color:var(--ink2);background:var(--bg);flex:none}
.pop .k{margin-left:auto;color:var(--ink3);font-family:'JetBrains Mono',monospace;font-size:11.5px}
.pop .linkrow{display:flex;gap:6px;padding:4px;min-width:320px}
.fmtbar{white-space:nowrap;position:absolute;z-index:70;display:flex;align-items:center;gap:1px;background:var(--ink);color:var(--bg);border-radius:8px;padding:3px;box-shadow:var(--shadow-2)}
.fmtbar button{flex:none;white-space:nowrap;border:0;background:none;color:inherit;height:28px;min-width:30px;padding:0 8px;border-radius:5px;font-size:13px;cursor:pointer}
.fmtbar button:hover{background:color-mix(in srgb,var(--bg) 18%,transparent)}
.fmtbar .sep{width:1px;height:18px;background:color-mix(in srgb,var(--bg) 30%,transparent);margin:0 3px}
.linkbtn{border:0;background:none;color:var(--acc);font:inherit;font-weight:600;cursor:pointer;padding:0 2px}
.toast .linkbtn{color:var(--accS)}
.blk .tools .mob{display:none}
.editbox{display:flex;flex-direction:column;gap:8px;margin:6px 0}
.editbox .acts{display:flex;gap:8px}
.addblk{margin-top:16px;color:var(--ink3);font-size:13px}

/* comments */
.margin{padding:48px 24px 120px 0;display:flex;flex-direction:column;gap:14px;position:sticky;top:52px;max-height:calc(100dvh - 52px);overflow:auto}
.margin h5{font-size:12.5px;color:var(--ink3);font-weight:500;display:flex;justify-content:space-between;align-items:center}
.th{background:var(--paper);border:1px solid var(--line);border-radius:var(--r2);padding:14px;box-shadow:var(--shadow-1)}
.th.res{opacity:.8}
.th.focus{border-color:var(--acc)}
.thh{display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:12px;color:var(--ink3);margin-bottom:6px}
.thh .on{cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cm{display:grid;grid-template-columns:28px 1fr;gap:10px;margin-top:10px}
.who{font-size:13px;font-weight:600}.who em{font-style:normal;font-weight:400;color:var(--ink3);font-size:12px;margin-left:6px}
.who .tag{margin-left:6px}
.txt{font-size:13.5px;line-height:1.55;white-space:pre-wrap;word-break:break-word}
.txt .mention{color:var(--acc);font-weight:500}
.reply{margin-top:10px;position:relative}
.reply textarea{min-height:38px;height:38px;font-size:13px}
.reply .row2{display:flex;justify-content:space-between;align-items:center;margin-top:6px}
.typing{font-size:12px;color:var(--ink3);margin-top:8px}
.mentions{position:absolute;left:0;right:0;bottom:100%;margin-bottom:4px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-2);max-height:220px;overflow:auto;z-index:20}
.mentions div{display:flex;align-items:center;gap:8px;padding:6px 10px;cursor:pointer;font-size:13px}
.mentions div.on,.mentions div:hover{background:var(--hover)}
.selbtn{position:absolute;z-index:30;box-shadow:var(--shadow-2)}

/* task board */
.tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin-top:8px}
.tabs button{border:0;background:none;padding:8px 0;font-size:13.5px;color:var(--ink3);cursor:pointer;border-bottom:2px solid transparent}
.tabs button.on{color:var(--ink);font-weight:500;border-color:var(--ink)}
.kan{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding-top:20px}
.col h5{font-size:13px;font-weight:600;display:flex;gap:8px;align-items:center;margin-bottom:12px}
.col h5 span{color:var(--ink3);font-weight:400}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ink3);flex:none}
.dot.ok{background:var(--ok)}.dot.bad{background:var(--bad)}.dot.run{background:var(--acc)}.dot.warn{background:var(--warn)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r2);padding:12px 14px;margin-bottom:10px;box-shadow:0 1px 2px #1F232808;cursor:pointer;transition:box-shadow .15s ease}
.card:hover{box-shadow:var(--shadow-1)}
.card.bad{border-color:color-mix(in srgb,var(--bad) 30%,var(--line))}
.card .id{color:var(--ink3)}
.card .t{font-size:14px;font-weight:500;margin:4px 0 8px;line-height:1.45}
.card .f{display:flex;justify-content:space-between;align-items:center;color:var(--ink3);font-size:12px}
.card .thumb{height:96px;border-radius:6px;overflow:hidden;margin-bottom:10px;background:var(--side)}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.tbl{width:100%;border-collapse:collapse;margin-top:16px;font-size:13.5px}
.tbl th{font-size:12.5px;font-weight:500;color:var(--ink2);text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
.tbl td{padding:10px;border-bottom:1px solid var(--line2);vertical-align:top}
.tbl tr{cursor:pointer}.tbl tr:hover td{background:var(--hover)}
.props{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}

/* decision */
.q{border:1px solid var(--line);background:var(--paper);border-radius:var(--r2);padding:18px;margin:14px 0;max-width:660px}
.q h3{font-size:16px;font-weight:600}
.q .ctx{color:var(--ink2);font-size:13.5px;margin-top:4px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:10px;border:1px solid var(--line2);border-radius:var(--r);margin-top:8px;cursor:pointer}
.opt:hover{background:var(--hover)}
.opt.on{border-color:var(--acc);background:var(--accS)}
.opt input{margin-top:4px;accent-color:var(--acc)}
.opt .d{font-size:12.5px;color:var(--ink2)}

/* drawers, dialogs, toast */
.scrim{position:fixed;inset:0;background:#0F11141F;z-index:40;opacity:0;transition:opacity .2s ease-out}
.scrim.in{opacity:1}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(560px,100%);background:var(--paper);border-left:1px solid var(--line);box-shadow:var(--shadow-2);z-index:41;display:flex;flex-direction:column;transform:translateX(24px);opacity:0;transition:transform .22s ease-out,opacity .22s ease-out}
.drawer.in{transform:none;opacity:1}
.drawer .hd{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line2)}
.drawer .hd h3{font-size:16px;font-weight:600}
.drawer .bd{padding:20px;overflow:auto;flex:1}
.dialog{position:fixed;left:50%;top:min(14vh,96px);max-height:calc(100dvh - min(14vh,96px) - 24px);overflow:auto;width:min(520px,calc(100% - 32px));transform:translate(-50%,8px);opacity:0;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-2);z-index:41;padding:22px;transition:transform .2s ease-out,opacity .2s ease-out}
.dialog.in{transform:translate(-50%,0);opacity:1}
.dialog h3{font-size:17px;font-weight:600;margin-bottom:12px}
.dialog .acts{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:8px;margin-top:18px}
.field{margin-top:14px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);border-radius:var(--r);padding:10px 16px;font-size:13px;z-index:60;box-shadow:var(--shadow-2)}
.vlist div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line2);font-size:13.5px}
.keybox{font-family:'JetBrains Mono',monospace;font-size:12.5px;background:var(--side);border:1px solid var(--line);border-radius:var(--r);padding:10px;word-break:break-all;margin-top:8px}

/* login */
.login{min-height:100dvh;display:grid;place-items:center;padding:24px}
.login .box{width:min(420px,100%)}
.login h1{font-size:26px;font-weight:600;letter-spacing:-0.02em;margin:18px 0 6px}
.login p{color:var(--ink2)}
.login form{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.notice{border:1px solid var(--line);background:var(--paper);border-radius:var(--r);padding:12px 14px;font-size:13.5px}

/* responsive */
@media (max-width:1100px){
  .row{grid-template-columns:44px 1fr 96px 56px}
  .row .c3{display:none}
  .docwrap,.docwrap.wide.cm{grid-template-columns:1fr}
  .docwrap.wide.cm .margin{position:fixed;right:0;top:52px;bottom:0;width:min(360px,100vw);max-width:none;max-height:none;background:var(--paper);box-shadow:var(--shadow-2);z-index:30;padding:20px}
  .margin{position:static;max-height:none;padding:0 24px 80px 24px;max-width:700px}
  .doc{padding:32px 32px 32px 40px}
  .blk .tools{right:0;top:-30px}
  .blk .cnt{right:0}
}
@media (max-width:767px){
  .side{position:fixed;left:0;top:0;z-index:50;transform:translateX(-100%);transition:transform .2s ease-out;box-shadow:var(--shadow-2)}
  .side.open{transform:none}
  .btn.menu-btn{display:inline-flex}
  .top{padding:0 16px}
  .top .right .hide-sm{display:none}
  .page{padding:24px 16px}
  .row{grid-template-columns:44px 1fr 48px}
  .row .c3,.row .c4{display:none}
  .doc,.docwrap.wide .doc{padding:24px 16px}
  .blk.has-rv{padding-right:30px;padding-top:26px}
  .blk .rv{right:auto;left:0;top:0;justify-content:flex-start}
  .blk.has-rv:has(.rv.none){padding-top:0}
  .blk .rv.none{position:static;display:none}
  .blk.sel .rv.none{display:flex;margin-top:6px}
  .doc h1.title{font-size:26px}
  .margin{padding:0 16px 80px}
  .blk{padding-right:30px}
  .gut{display:none}
  .blk .tools .mob{display:grid}
  .blk.focus .tools{display:flex;opacity:1;position:static;justify-content:flex-end;padding:2px 0}
  .blk .tools{display:none}
  .blk.sel{background:var(--hover)}
  .blk.sel .tools{display:flex;opacity:1;position:static;justify-content:flex-end;padding:2px 0}
  .blk .tools button{width:40px;height:40px}
  .blk .cnt{right:0;top:4px}
  .side-scrim{display:block;position:fixed;inset:0;background:#0006;z-index:40;opacity:0;pointer-events:none;transition:opacity .2s ease-out}
  .side.open+.side-scrim{opacity:1;pointer-events:auto}
  .kan{grid-template-columns:1fr}
  .btn{height:40px}
  .item{min-height:40px}
}