:root{--bg:#f7f7f5;--fg:#1d1d1b;--muted:#5f5f5a;--card:#fff;--line:#e3e3de;--acc:#1f5fbf;--acc2:#0b2f6b}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#141413;--fg:#ececea;--muted:#a3a39d;--card:#1e1e1c;--line:#2e2e2b;--acc:#7fb0ff;--acc2:#b9d2ff}}
:root[data-theme="dark"]{--bg:#141413;--fg:#ececea;--muted:#a3a39d;--card:#1e1e1c;--line:#2e2e2b;--acc:#7fb0ff;--acc2:#b9d2ff}
#theme{background:none;border:1px solid var(--line);border-radius:6px;padding:6px 10px;color:var(--fg);font-size:16px;line-height:1;cursor:pointer}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
a{color:var(--acc)}a:hover{color:var(--acc2)}
header{position:sticky;top:0;z-index:10;background:var(--card);border-bottom:1px solid var(--line)}
.bar{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:10px 16px}
.brand{font-weight:700;text-decoration:none;color:var(--fg);font-size:17px;white-space:nowrap}
nav{margin-left:auto}nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;flex-wrap:wrap}
nav a{display:block;padding:6px 10px;border-radius:6px;text-decoration:none;color:var(--fg);font-size:14px}
nav a:hover,nav a.on,#topics:hover,#topics.on,#topics[aria-expanded="true"]{background:var(--bg);color:var(--acc2)}
nav ul{flex-wrap:nowrap}.drop{position:relative}
#topics{font:inherit;font-size:14px;padding:6px 10px;border:0;border-radius:6px;background:none;color:var(--fg);cursor:pointer}
#topics span{font-size:11px;margin-left:2px}
.sub{display:none;position:absolute;right:0;top:calc(100% + 6px);min-width:270px;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.14);padding:6px}
.sub.open{display:block}.sub a{padding:8px 10px}
#burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:6px;padding:6px 10px;color:var(--fg);font-size:18px;cursor:pointer}
@media (max-width:900px){#burger{display:block}nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--card);border-bottom:1px solid var(--line);padding:8px 16px 12px}
 nav.open{display:block}nav ul{flex-direction:column;gap:0}nav a{padding:10px 8px;font-size:16px;border-bottom:1px solid var(--line)}
 #topics{display:none}.sub{display:block;position:static;box-shadow:none;border:0;padding:0;min-width:0}}
main{max-width:1100px;margin:0 auto;padding:20px 16px 60px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}
.card h2{margin:0 0 6px;font-size:18px}.card p.d{margin:0 0 10px;color:var(--muted);font-size:14px}
.card ul{margin:0;padding-left:18px}.card li{margin:4px 0}

details.card>summary{list-style:none;cursor:pointer;display:flex;gap:10px;align-items:flex-start}
details.card>summary::-webkit-details-marker{display:none}
.arrow{display:inline-block;transition:transform .15s;font-size:20px;line-height:1.3;color:var(--acc);flex:0 0 auto}
details[open]>summary .arrow{transform:rotate(90deg)}
.st{flex:1}.st h2{margin:0 0 4px}.st p.d{margin:0}
details.card .body{margin-top:12px;border-top:1px solid var(--line);padding-top:10px}
.card ul.sum{margin:0 0 10px;padding-left:18px;border-left:3px solid var(--acc);padding-left:12px;list-style:none}.card ul.sum li{margin:5px 0;font-size:14px}
.card h3{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:10px 0 4px}
.kind{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-left:6px}
article{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px 22px;overflow-wrap:anywhere}
article h1{font-size:26px;margin:0 0 8px}article h2{font-size:20px;margin-top:28px;border-bottom:1px solid var(--line);padding-bottom:4px}
article h3{font-size:17px}article table{border-collapse:collapse;font-size:14px;display:block;overflow-x:auto;max-width:100%}
article th,article td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
article img{max-width:100%;height:auto}article pre{overflow-x:auto;background:var(--bg);padding:10px;border-radius:6px}
article blockquote{border-left:3px solid var(--line);margin:0;padding:0 0 0 14px;color:var(--muted)}
.crumb{font-size:14px;color:var(--muted);margin-bottom:10px}.crumb a{color:var(--muted)}
.meta{color:var(--muted);font-size:13px;margin-top:30px;border-top:1px solid var(--line);padding-top:10px}
#q{width:100%;padding:10px 12px;font-size:16px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--fg);margin:8px 0 18px}
.hero{margin:6px 0 18px}.hero p{color:var(--muted);margin:4px 0}
.tools{display:flex;gap:12px;flex-wrap:wrap;margin:14px 0 4px}
.model{display:block;flex:1 1 260px;background:var(--acc);color:#fff!important;text-decoration:none;padding:12px 16px;border-radius:8px;font-weight:600;line-height:1.3}
.model small{display:block;font-weight:400;font-size:13px;opacity:.85;margin-top:4px}
.model:hover{background:var(--acc2)}
footer{max-width:1100px;margin:0 auto;padding:0 16px 30px;color:var(--muted);font-size:13px}

#wb{--wbbg:#fbfbf8;--wbg1:#0000000f;--wbg2:#0000001c;--wbink:#555;--wblab:#444;--wblabbg:#fbfbf8e0;--wbtoday:#c0392b}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) #wb{--wbbg:#1b1b19;--wbg1:#ffffff0d;--wbg2:#ffffff1a;--wbink:#9a9a94;--wblab:#d6d6d0;--wblabbg:#1b1b19e0;--wbtoday:#ff7b6b}}
:root[data-theme="dark"] #wb{--wbbg:#1b1b19;--wbg1:#ffffff0d;--wbg2:#ffffff1a;--wbink:#9a9a94;--wblab:#d6d6d0;--wblabbg:#1b1b19e0;--wbtoday:#ff7b6b}
#wb .wbtop h1{margin:0 0 4px}
#wb .wbtools{display:flex;gap:6px;align-items:center;margin:4px 0 8px}
#wb .wbtools{flex-wrap:wrap}
#wb .wbtools button{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:52px;padding:5px 6px 4px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--fg);font:inherit;font-size:11px;line-height:1.1;cursor:pointer}
#wb .wbtools button svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
#wb .wbtools button[disabled]{opacity:.4;cursor:default}
#wb .wbsep{width:1px;align-self:stretch;background:var(--line);margin:0 2px}
@media (max-width:520px){#wb .wbtools button{min-width:40px;padding:7px 6px}#wb .wbtools button span{display:none}#wb .wbtools{gap:4px}}
#wb .wbsave{font-size:12px;opacity:.7;margin-left:6px}
#wb .wbview{-webkit-touch-callout:none;position:relative;height:calc(100vh - 120px);min-height:420px;overflow:hidden;touch-action:none;
  border:1px solid var(--line);border-radius:10px;cursor:grab;outline:none;
  background-color:var(--wbbg);
  background-image:linear-gradient(var(--wbg1) 1px,transparent 1px),linear-gradient(90deg,var(--wbg1) 1px,transparent 1px),
    linear-gradient(var(--wbg2) 1px,transparent 1px),linear-gradient(90deg,var(--wbg2) 1px,transparent 1px)}
#wb .wbview.panning{cursor:grabbing}
#wb .wbworld{position:absolute;left:0;top:0;transform-origin:0 0}
#wb .wblinks{position:absolute;left:-50000px;top:-50000px;width:100000px;height:100000px;overflow:visible;pointer-events:none}
#wb .wblinks line{stroke:var(--wbink);stroke-width:1.5;stroke-dasharray:4 4}
#wb .wbline{position:absolute;top:-2px;height:4px;border-radius:2px;background:var(--wbink)}
#wb .wbtick{position:absolute;top:-7px;width:14px;height:14px;margin-left:-7px;border-radius:50%;background:var(--wbbg);border:3px solid var(--wbink);box-sizing:border-box;z-index:1}
#wb .wbtick span{position:absolute;top:16px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:12px;font-weight:600;color:var(--wblab);background:var(--wblabbg);padding:0 3px;border-radius:3px}
#wb .wbtick.alt span{top:auto;bottom:16px}
#wb .wbspan{position:absolute;top:-10px;height:20px;border-radius:10px;background:#e6dcffcc;border:2px solid #7a5cc4;box-sizing:border-box;overflow:hidden}
#wb .wbspan.estimate{border-style:dashed;background:#e6dcff88}
#wb .wbspan span{display:block;padding:0 10px 0 22px;font-size:11px;line-height:16px;font-weight:600;color:#3a2a6b;white-space:nowrap}
#wb .wbtoday{position:absolute;top:-34px;height:68px;border-left:2px solid var(--wbtoday)}
#wb .wbtoday span{position:absolute;top:-16px;left:-18px;font-size:11px;font-weight:700;color:var(--wbtoday)}
#wb .wbhead{position:absolute;width:220px;box-sizing:border-box;padding:4px 0 4px 10px;border-left:8px solid var(--c);font-size:17px;font-weight:700;color:var(--fg);pointer-events:none}
#wb .wbapart{position:absolute;height:0;border-top:2px dashed var(--wbink);opacity:.8;pointer-events:none}
#wb .wbapart span{position:absolute;top:8px;left:0;font-size:14px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--wblab)}
#wb .wbcard[data-estimate]{border:2px dashed #0005}
#wb .wbcard{position:absolute;width:220px;box-sizing:border-box;padding:10px 12px;border-radius:6px;background:var(--c);color:#1d1d1d;
  box-shadow:0 1px 3px #0003;cursor:grab;user-select:none;-webkit-user-select:none;touch-action:none;transition:left .12s,top .12s}
#wb .wbcard.dragging{transition:none;box-shadow:0 8px 22px #0004;cursor:grabbing;z-index:5}
#wb .wbcard[hidden]{display:none}
#wb .wbcard h3{font-size:15px;margin:0 0 4px;line-height:1.3;text-transform:none;letter-spacing:0;color:#1d1d1d;font-weight:600}
#wb .wbcard p{font-size:14px;margin:0 0 6px;line-height:1.4}
#wb .wbcard a{color:#1a4f8a}
#wb .wbcard .src{font-size:11px;color:#555}
#wb .wbcard .when{float:right;font-size:11px;font-weight:600;color:#444;margin-left:6px}
#wb .wbcard[data-status="done"]{opacity:.6}
#wb .wbcard[data-status="dropped"]{opacity:.45}
#wb .wbcard .st{text-transform:uppercase;font-size:10px;letter-spacing:.05em}
#wb .wbcard.held{outline:3px solid #1f5fbf;outline-offset:2px}
#wb .wbmenu{position:fixed;z-index:40;min-width:190px;background:var(--card);color:var(--fg);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px #0004;padding:4px}
#wb .wbmenu[hidden],#wb .wbform[hidden]{display:none}
#wb .wbmenu button{display:block;width:100%;text-align:left;padding:11px 14px;border:0;background:none;color:inherit;font:inherit;font-size:16px;border-radius:7px;cursor:pointer}
#wb .wbmenu button:hover,#wb .wbmenu button:focus{background:var(--line);outline:none}
#wb .wbmenu button[disabled]{opacity:.45;cursor:default}
#wb .wbmenu .danger{color:#c62828}
#wb .wbform{position:fixed;inset:0;z-index:45;background:#0007;display:flex;align-items:center;justify-content:center;padding:16px}
#wb .wbform form{width:min(420px,100%);background:var(--card);color:var(--fg);border-radius:12px;padding:16px;box-sizing:border-box;max-height:100%;overflow:auto}
#wb .wbform h2{margin:0 0 10px;font-size:20px}
#wb .wbform label{display:block;margin:10px 0 0;font-size:14px;font-weight:600}
#wb .wbform input,#wb .wbform textarea{display:block;width:100%;box-sizing:border-box;margin-top:4px;padding:8px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);font:inherit;font-size:16px}
#wb .wbcats{display:flex;flex-wrap:wrap;gap:6px}
#wb .wbcats button{padding:7px 10px;border-radius:8px;border:2px solid transparent;background:var(--c);color:#1d1d1d;font:inherit;font-size:14px;cursor:pointer}
#wb .wbcats button[aria-checked="true"]{border-color:#1d1d1d;font-weight:700}
#wb .wberr{color:#c62828;min-height:1.2em;margin:8px 0 0;font-size:14px}
#wb .wbbtns{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
#wb .wbbtns button{padding:8px 16px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--fg);font:inherit;cursor:pointer}
#wb .wbbtns button[type=submit]{background:#1f5fbf;border-color:#1f5fbf;color:#fff;font-weight:600}

#wb .wbdraw{position:absolute;left:0;top:0;pointer-events:none;
  --mk:#202020;--mkb:#1f5fbf;--mkr:#c62828;--mkg:#2e7d32;--mko:#c66a10;--mkm:#666}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) #wb .wbdraw{--mk:#ecece6;--mkb:#7fb2ff;--mkr:#ff7a7a;--mkg:#86d993;--mko:#ffb35c;--mkm:#a8a8a0}}
:root[data-theme="dark"] #wb .wbdraw{--mk:#ecece6;--mkb:#7fb2ff;--mkr:#ff7a7a;--mkg:#86d993;--mko:#ffb35c;--mkm:#a8a8a0}
#wb .wbcells{display:block;overflow:visible;font-family:Caveat,'Patrick Hand','Comic Sans MS',cursive}
#wb .wbcells .s{fill:none;stroke-linecap:round;stroke-linejoin:round;filter:url(#wbwob)}
#wb .wbcells .s.f{fill:var(--wbbg)}
#wb .wbcells .s.k{stroke:var(--mk)}#wb .wbcells .s.b{stroke:var(--mkb)}#wb .wbcells .s.r{stroke:var(--mkr)}
#wb .wbcells .s.g{stroke:var(--mkg)}#wb .wbcells .s.o{stroke:var(--mko)}
#wb .wbcells text.k{fill:var(--mk)}#wb .wbcells text.b{fill:var(--mkb)}#wb .wbcells text.r{fill:var(--mkr)}
#wb .wbcells text.g{fill:var(--mkg)}#wb .wbcells text.o{fill:var(--mko)}#wb .wbcells text.m{fill:var(--mkm)}

#wb .wbanimtile{position:absolute;left:0;top:0;width:1000px;box-sizing:border-box;padding:14px;border-radius:14px;
  border:3px solid var(--mkb);background:var(--wbbg);cursor:pointer;
  --mk:#202020;--mkb:#1f5fbf;--mkr:#c62828;--mkg:#2e7d32;--mko:#c66a10;--mkm:#666;--mkf:#dcecff}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) #wb .wbanimtile{--mk:#ecece6;--mkb:#7fb2ff;--mkr:#ff7a7a;--mkg:#86d993;--mko:#ffb35c;--mkm:#a8a8a0;--mkf:#23344d}}
:root[data-theme="dark"] #wb .wbanimtile{--mk:#ecece6;--mkb:#7fb2ff;--mkr:#ff7a7a;--mkg:#86d993;--mko:#ffb35c;--mkm:#a8a8a0;--mkf:#23344d}
#wb .wbanimtile canvas{display:block;width:100%;height:auto;border-radius:8px}
#wb .wbanim-bar{height:6px;background:var(--wbg2);border-radius:3px;margin:10px 0 6px}
#wb .wbanim-bar span{display:block;height:100%;width:0;background:var(--mkb);border-radius:3px}
#wb .wbanim-cap{min-height:2.5em;margin:4px 4px 0;font:30px/1.2 Caveat,'Comic Sans MS',cursive;color:var(--mk)}