/* Toolzy — "Warm Spark" design: coral→amber #FF5A5F→#FFB020, deep navy #0B1020, warm off-white #FFF9F5. System fonts only, no external requests. */
:root{--bg:#fff9f5;--card:#fff;--text:#0b1020;--text2:#3d4558;--muted:#6b7280;--line:#f0e4dc;--brand:#c73e42;--brand-d:#a83438;--brand-hot:#ff5a5f;--brand-amber:#ffb020;--brand-t:#fff0e8;--ok:#059669;--ok-bg:#d1fae5;--accent:#fff0e8;--warn:#b42318;--on-accent:#0b1020;--r:1rem;--rl:1rem;--sh:0 2px 8px rgba(11,16,32,.06),0 1px 2px rgba(11,16,32,.04);--ring:0 0 0 3px rgba(255,90,95,.28);--grad:linear-gradient(135deg,#ff5a5f,#ffb020);--mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;--sans:"Plus Jakarta Sans",Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
@media (prefers-color-scheme:dark){:root{--bg:#0b1020;--card:#141b2e;--text:#e6ebf5;--text2:#b4bfd1;--muted:#8d9ab0;--line:#2a3348;--brand:#ff8a8e;--brand-d:#ffb020;--brand-hot:#ff5a5f;--brand-amber:#ffb020;--brand-t:#2a1a1c;--ok:#34d399;--ok-bg:#0e3a2d;--accent:#2a1a1c;--warn:#fda29b;--on-accent:#0b1020;--sh:0 2px 10px rgba(0,0,0,.35);--ring:0 0 0 3px rgba(255,90,95,.35)}}
*{box-sizing:border-box}
svg{flex:none;max-width:64px;max-height:64px}
svg:not([width]){width:1.25em;height:1.25em}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;overflow-wrap:break-word;font:16px/1.65 var(--sans);background:var(--bg);color:var(--text)}
a{color:var(--brand);text-underline-offset:2px}
a:hover{color:var(--brand-d);text-decoration-thickness:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
main .wrap{max-width:960px}
.ic{width:1.25em;height:1.25em;flex:none;vertical-align:-.2em}.ic.sm{width:1em;height:1em}
/* header */
header.site{background:color-mix(in srgb,var(--card) 92%,transparent);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:saturate(1.4) blur(8px)}
header.site .wrap{max-width:1120px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;padding-top:12px;padding-bottom:12px}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:1.25rem;color:var(--text);text-decoration:none;letter-spacing:-.03em}
.brand:hover{color:var(--text)}
.brand .logo{width:34px;height:34px;padding:0;border-radius:10px;background:var(--grad);color:var(--on-accent);vertical-align:middle;overflow:hidden}
.brand em{font-style:normal;color:var(--brand)}
nav.main{display:flex;flex-wrap:wrap;gap:2px 4px;margin-left:auto}
nav.main a{padding:6px 12px;border-radius:999px;color:var(--text2);text-decoration:none;font-weight:600;font-size:.92rem}
nav.main a:hover{background:var(--brand-t);color:var(--brand)}
.badge-free{display:none;font-size:.75rem;font-weight:700;color:var(--ok);background:var(--ok-bg);border-radius:999px;padding:4px 12px;white-space:nowrap}
@media (min-width:900px){.badge-free{display:inline-block}nav.main{margin-left:auto}}
main{padding:24px 0 48px}
h1{font-size:2rem;line-height:1.2;margin:.2em 0 .3em;letter-spacing:-.03em;font-weight:800}
h2{font-size:1.4rem;line-height:1.3;margin:1.8em 0 .6em;letter-spacing:-.02em;font-weight:800}
h3{font-size:1.08rem;margin:1.2em 0 .3em}
p,ul,ol{margin:.6em 0}
.lead{color:var(--text2);font-size:1.08rem;margin-top:0;max-width:46rem}
.crumbs{font-size:.85rem;color:var(--muted);margin:0 0 10px}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--brand);text-decoration:underline}
/* page head with icon + badges */
.th{display:flex;align-items:center;gap:16px;margin:6px 0 10px}
.th h1{margin:0}
.badges{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 0}
.ti{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:.85rem;background:var(--brand-t);color:var(--brand);flex:none}
.ti.big{width:52px;height:52px;border-radius:1rem}.ti .ic{width:22px;height:22px}.ti.big .ic{width:26px;height:26px}
.pill{display:inline-block;border-radius:999px;padding:2px 10px;font-size:.78rem;font-weight:700;background:var(--brand-t);color:var(--brand)}
.pill.ok{background:var(--ok-bg);color:var(--ok)}
.pill.bad{background:#f0443833;color:var(--warn)}
/* tool workbench */
.tool,.card{background:var(--card);border:1px solid var(--line);border-radius:var(--rl);padding:20px;margin:16px 0;box-shadow:var(--sh)}
.tool{border-top:3px solid var(--brand-hot)}
.row{display:flex;flex-wrap:wrap;gap:14px}
.field{flex:1 1 150px;display:flex;flex-direction:column;gap:5px;min-width:0}
label,.lbl{font-size:.82rem;font-weight:700;color:var(--text2);letter-spacing:.01em}
input,select,textarea,button{font:inherit;color:inherit}
input,select,textarea{width:100%;padding:10px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg);min-height:46px}
textarea{min-height:170px;resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--brand);box-shadow:var(--ring)}
button:focus-visible,a:focus-visible,summary:focus-visible,.sr-file:focus-visible+label{outline:3px solid var(--brand);outline-offset:2px}
.check{display:flex;align-items:center;gap:8px;font-weight:500;min-height:32px;color:var(--text)}
.check input{width:auto;min-height:0;accent-color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--grad);color:var(--on-accent);border:1px solid transparent;border-radius:var(--r);padding:10px 18px;font-weight:700;cursor:pointer;min-height:46px;text-decoration:none;transition:filter .15s,transform .05s,box-shadow .15s;box-shadow:0 2px 8px rgba(255,90,95,.22)}
.btn:hover{filter:brightness(1.06);color:var(--on-accent);box-shadow:0 4px 14px rgba(255,90,95,.3)}
.btn:active{transform:translateY(1px)}
.btn.alt{background:var(--card);color:var(--text);border-color:var(--line);box-shadow:none;filter:none}
.btn.alt:hover{background:var(--brand-t);color:var(--brand);border-color:var(--brand)}
.btn.ok,.btn.alt.ok{background:var(--ok-bg);color:var(--ok);border-color:var(--ok);box-shadow:none;filter:none}
.btns{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:12px 0}
.stat{background:var(--brand-t);border-radius:var(--r);padding:12px 14px}
.stat .v{display:block;font-size:1.4rem;font-weight:800;line-height:1.2;overflow-wrap:anywhere;letter-spacing:-.02em}
.stat .l{font-size:.78rem;color:var(--text2);font-weight:600}
.result{background:var(--brand-t);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;margin-top:14px;min-height:3em;overflow-wrap:anywhere}
.result strong{font-size:1.15rem}
.err{color:var(--warn);font-weight:600}
.calc{border-top:1px solid var(--line);padding:12px 0}
.calc:first-child{border-top:0;padding-top:0}
.calc p{margin:.2em 0 .6em;font-weight:600}
.inline{display:inline-block;width:6.5em;margin:0 4px}
.inline.wide{width:8em}
table{width:100%;border-collapse:collapse;font-size:.92rem;margin:10px 0}
th,td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:right}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
th:first-child,td:first-child{text-align:left}
.tablewrap{overflow-x:auto}
.note{font-size:.85rem;color:var(--muted)}
.mono,textarea.mono{font-family:var(--mono);font-size:.9rem}
pre.out{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;overflow:auto;max-height:420px;white-space:pre-wrap;word-break:break-word;font:.88rem/1.5 var(--mono);margin:10px 0}
.pw{font-family:var(--mono);font-size:1.15rem;word-break:break-all}
canvas.preview,img.preview{max-width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r);background:repeating-conic-gradient(#8881 0 25%,transparent 0 50%) 0 0/16px 16px}
.swatch{display:inline-block;width:56px;height:56px;border-radius:var(--r);border:1px solid var(--line);vertical-align:middle}
.diff-add{background:#12b76a33;text-decoration:none}
.diff-del{background:#f0443833;text-decoration:line-through}
.diffbox{white-space:pre-wrap;word-break:break-word;font:.9rem/1.6 var(--mono);background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;margin:10px 0;overflow:auto;max-height:420px}
.contrast-sample{border-radius:var(--r);padding:14px 16px;margin:10px 0;border:1px solid var(--line)}
.qr{display:block;margin:10px auto;max-width:100%;height:auto;image-rendering:pixelated;background:#fff;border-radius:.5rem}
.drop{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;border:2px dashed var(--line);border-radius:var(--rl);padding:18px;background:var(--bg);margin:6px 0 12px}
.drop.over{border-color:var(--brand);background:var(--brand-t)}
.sr-file{position:absolute;opacity:0;width:1px;height:1px;overflow:hidden}
#gpa-rows select,#gpa-rows input{min-width:84px}
#gpa-rows td:first-child input{min-width:120px}
#gpa-rows td{padding:4px}
/* grids / tiles */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;padding:0;list-style:none}
.grid li{margin:0}
.grid a.tile{display:flex;flex-direction:column;align-items:flex-start;gap:4px;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--rl);padding:16px;text-decoration:none;color:var(--text);box-shadow:var(--sh);transition:border-color .15s,box-shadow .15s,transform .15s}
.grid a.tile:hover{border-color:var(--brand);box-shadow:0 6px 18px rgba(255,90,95,.14);transform:translateY(-1px)}
.tile .ti{margin-bottom:6px}
.tile b{display:block;color:var(--text);font-weight:700;letter-spacing:-.01em}
.tile .td{font-size:.88rem;color:var(--text2);line-height:1.5}
.cat h2,.cat h3{margin:1.2em 0 .6em}.cat h2 a,.cat h3 a{color:inherit;text-decoration:none}.cat h2 a:hover,.cat h3 a:hover{color:var(--brand);text-decoration:underline}
.cat h3{font-size:1.15rem}
/* faq accordion */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--r);margin:8px 0;box-shadow:var(--sh)}
.faq summary{cursor:pointer;list-style:none;padding:14px 48px 14px 18px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{display:inline;margin:0;font-size:1rem;font-weight:700}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;line-height:1;color:var(--brand);font-weight:700}
.faq details[open] summary::after{content:"\2212"}
.faq details p{overflow-wrap:anywhere;margin:0;padding:0 18px 16px;color:var(--text2)}
.explainer{margin-top:8px}
.explainer h2{margin-top:1.6em}
.related{display:flex;flex-wrap:wrap;gap:8px;padding:0;list-style:none}
.related a:not(.tile){display:inline-block;border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:var(--card);text-decoration:none;font-weight:600;font-size:.9rem}
.related a:not(.tile):hover{border-color:var(--brand)}
ul.grid.related{display:grid}
/* ads */
.ad-slot{margin:20px 0;text-align:center;overflow:hidden;position:relative}
.ad-slot:empty{display:none}
.ad-box{margin:36px 0 28px;text-align:center}
.ad-label{margin:0 0 6px;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.ad-box .ad-slot{margin:0 auto;min-height:250px;max-width:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r);display:flex;align-items:center;justify-content:center}
/* home */
.hero{padding:34px 0 18px;text-align:center;background:radial-gradient(rgba(255,90,95,.18) 1px,transparent 1px) 0 0/22px 22px,radial-gradient(ellipse 80% 60% at 50% -10%,rgba(255,176,32,.18),transparent 60%);border-radius:var(--rl)}
.hero .lead{margin:0 auto 18px}
.hero h1{font-size:2.5rem;max-width:44rem;margin:.3em auto}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-flex;align-items:center;gap:6px;background:var(--ok-bg);color:var(--ok);font-weight:700;font-size:.8rem;border-radius:999px;padding:4px 14px;margin:0}
.search{position:relative;max-width:640px;margin:6px auto}
.search input{font-size:1.05rem;padding:15px 20px 15px 50px;border-radius:999px;background:var(--card);box-shadow:var(--sh);min-height:56px}
.search .si{position:absolute;left:19px;top:19px;width:20px;height:20px;color:var(--muted);pointer-events:none}
.search .note{text-align:center;min-height:1.4em;margin:6px 0 0}
.try{font-size:.88rem;color:var(--muted);margin:2px 0 18px}
.try a{display:inline-block;margin:3px 4px;padding:3px 12px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--text2);text-decoration:none;font-weight:600}
.try a:hover{border-color:var(--brand);color:var(--brand)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;list-style:none;padding:0 16px;margin:10px auto 6px;max-width:760px}
.facts li{background:var(--card);border:1px solid var(--line);border-radius:var(--rl);padding:14px 10px;box-shadow:var(--sh)}
.facts b{display:block;font-size:1.7rem;line-height:1.1;color:var(--brand);letter-spacing:-.03em}
.facts span{font-size:.78rem;color:var(--text2);font-weight:600}
.cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.catcard{display:flex;flex-direction:column;align-items:flex-start;gap:2px;position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--rl);padding:20px;text-decoration:none;color:var(--text);box-shadow:var(--sh);transition:border-color .15s,box-shadow .15s}
.catcard:hover{border-color:var(--brand);box-shadow:0 6px 18px rgba(255,90,95,.14);color:var(--text)}
.catcard .pill{position:absolute;top:20px;right:20px}
.catcard h3{margin:12px 0 4px;font-size:1.15rem}
.catcard p{margin:0 0 12px;color:var(--text2);font-size:.9rem;flex:1}
.catcard .more{color:var(--brand);font-weight:700;font-size:.9rem}
.alltop{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px}
.alltop h2{margin:1.4em 0 .4em}
.tabs{display:flex;flex-wrap:wrap;gap:6px}
.tabs button{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:6px 14px;font-weight:700;font-size:.85rem;cursor:pointer;color:var(--text2)}
.tabs button:hover{border-color:var(--brand);color:var(--brand)}
.tabs button.on{background:var(--grad);border-color:transparent;color:var(--on-accent)}
.trio{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.trio .card{margin:0}.trio h3{margin:10px 0 4px}.trio p{margin:0;color:var(--text2);font-size:.93rem}
.cta{background:var(--grad);color:var(--on-accent);border-radius:var(--rl);padding:30px 24px;text-align:center;margin:36px 0 0;box-shadow:0 8px 24px rgba(255,90,95,.22)}
.cta h2{margin:0 0 6px;color:inherit}.cta p{margin:0 auto;max-width:36rem;opacity:.92}.cta a{color:inherit;font-weight:700;text-decoration:underline;text-underline-offset:3px}
/* footer */
footer.site{border-top:1px solid var(--line);background:var(--card);padding:36px 0 22px;font-size:.9rem;color:var(--text2)}
footer.site .wrap{max-width:1120px}
.fcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:24px}
.fcols h2{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 10px}
.fcols ul{list-style:none;padding:0;margin:0}.fcols li{margin:6px 0}
.fcols a{color:var(--text2);text-decoration:none}.fcols a:hover{color:var(--brand);text-decoration:underline}
.fbrand p{margin:10px 0 0;max-width:22rem}
footer .fine{border-top:1px solid var(--line);margin-top:24px;padding-top:16px;font-size:.82rem;color:var(--muted)}
noscript .card{border-color:var(--warn)}
.sr-only{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.sr-only:focus{left:8px;top:8px;width:auto;height:auto;overflow:visible;background:var(--card);color:var(--text);padding:8px 12px;z-index:30;border-radius:8px}
[hidden]{display:none!important}
select{text-overflow:ellipsis;padding-right:30px}
.btns .btn{max-width:100%}
@media (max-width:560px){.row>.field{flex:1 1 100%}.btns .btn{flex:1 1 calc(50% - 8px);padding-left:10px;padding-right:10px}}
@media (max-width:640px){h1{font-size:1.6rem}.hero h1{font-size:1.85rem}.inline{width:5.5em}.btns .btn{flex:1 1 auto}.tool,.card{padding:16px;border-radius:var(--rl)}.th{align-items:flex-start}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* mobile header: logo + search + hamburger, full-screen slide-down menu (under 720px) */
.hbtns,.mmenu,nav.ns{display:none}
.ibtn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:.85rem;background:var(--card);color:var(--text);cursor:pointer}
.ibtn:hover{border-color:var(--brand);color:var(--brand)}
.ibtn .ic{width:22px;height:22px}
html.menu-open{overflow:hidden}
@media (max-width:719px){
  header.site{position:sticky;top:0}
  header.site .wrap{flex-wrap:wrap;justify-content:space-between;align-items:center;min-height:56px;padding-top:0;padding-bottom:0;gap:0 12px}
  header.site .brand{font-size:1.15rem}
  nav.main,.badge-free{display:none}
  .hbtns{display:flex;gap:8px}
  noscript nav.ns,nav.ns{display:flex;flex:1 1 100%;gap:2px 6px;flex-wrap:wrap;padding:0 0 8px}
  nav.ns a{padding:4px 10px;border-radius:999px;background:var(--brand-t);color:var(--brand);text-decoration:none;font-weight:600;font-size:.85rem}
  .mmenu{display:flex;flex-direction:column;position:fixed;inset:0;z-index:60;background:var(--bg);overflow-y:auto;overscroll-behavior:contain;padding:0 16px 24px;visibility:hidden;opacity:0;transform:translateY(-14px);transition:transform .2s ease,opacity .2s ease,visibility 0s linear .2s}
  .mmenu.open{visibility:visible;opacity:1;transform:none;transition:transform .2s ease,opacity .2s ease,visibility 0s}
  .mm-top{display:flex;align-items:center;justify-content:space-between;min-height:56px;flex:none}
  .mm-title{font-weight:800;font-size:1.15rem;letter-spacing:-.02em}
  .mm-search{position:relative;margin:4px 0 4px;flex:none}
  .mm-search .si{position:absolute;left:16px;top:16px;width:20px;height:20px;color:var(--muted);pointer-events:none}
  .mm-search input{border-radius:999px;padding:12px 18px 12px 46px;min-height:52px;font-size:1rem;background:var(--card);box-shadow:var(--sh)}
  .mm-status{min-height:1.4em;margin:6px 4px}
  .mm-links ul,.mm-res{list-style:none;margin:0;padding:0}
  .mm-links a,.mm-res a{display:flex;align-items:center;gap:12px;min-height:52px;padding:10px 14px;margin:0 0 6px;border:1px solid var(--line);border-radius:var(--r);background:var(--card);color:var(--text);text-decoration:none;font-weight:700}
  .mm-links a:hover,.mm-res a:hover,.mm-links a:focus-visible,.mm-res a:focus-visible{border-color:var(--brand);color:var(--brand)}
  .mm-links a .ic{color:var(--brand)}
  .mm-links a span{margin-left:auto;font-size:.78rem;font-weight:700;color:var(--brand);background:var(--brand-t);border-radius:999px;padding:1px 10px}
  .mm-links .sep{margin-top:14px}
  .mm-res a{flex-direction:column;align-items:flex-start;gap:2px}
  .mm-res small{font-weight:500;color:var(--text2);font-size:.82rem}
}
@media (prefers-reduced-motion:reduce){.mmenu{transition:none!important}}
/* ---- PDF, document, utility and lab tools (Oct 2026) ---- */
textarea[rows="2"],textarea[rows="3"],textarea[rows="4"]{min-height:92px}
.label{font-size:.85rem;font-weight:700;color:var(--text2);margin:14px 0 4px}
.flist{list-style:none;padding:0;margin:8px 0;display:grid;gap:6px}
.flist li{display:flex;align-items:center;gap:8px;justify-content:space-between;background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:6px 6px 6px 12px}
.fl-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:.92rem}
.fl-btns{display:flex;gap:4px;flex:none}
.btn.sm{min-height:34px;padding:4px 10px;font-size:.88rem}
.btns a.btn{text-decoration:none}
table.edit td{padding:4px}table.edit input,table.edit select{min-height:40px;padding:6px 8px}
table.edit td:first-child input{min-width:140px}
tr.best td{background:var(--ok-bg);font-weight:700}tr.worst td{color:var(--warn)}
.pvbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:8px 0}
.pvnum{width:5.5em;min-height:38px;padding:6px 8px}.pvzoom{width:auto;min-height:38px;padding:6px 30px 6px 10px}
.pvwrap{overflow:auto;max-height:80vh;background:#64748b22;border-radius:var(--r);padding:2px;text-align:center}
.pvwrap canvas{background:#fff;box-shadow:var(--sh);max-width:none}
.code3{display:grid;gap:10px}
@media (min-width:900px){.code3{grid-template-columns:repeat(3,1fr)}}
.code3 textarea{min-height:200px;font-size:.85rem}
.hpframe{width:100%;height:380px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
ul.links{padding-left:1.2em;max-height:300px;overflow:auto;font-size:.9rem;overflow-wrap:anywhere}
.result.cite{font-family:Georgia,"Times New Roman",serif;font-size:1.02rem;padding-left:2.2em;text-indent:-1.6em}
ol.cites{font-family:Georgia,"Times New Roman",serif;padding-left:1.4em}ol.cites li{margin:.5em 0;overflow-wrap:anywhere}
.split{margin:12px 0}.splitbar{display:flex;height:14px;border-radius:999px;overflow:hidden;background:var(--line)}
.sp-p{background:var(--brand)}.sp-i{background:var(--brand-amber)}
.bigclock{font:800 clamp(2.6rem,11vw,5rem)/1.1 var(--mono);text-align:center;letter-spacing:-.02em;margin:18px 0;font-variant-numeric:tabular-nums}
.bigclock.done{color:var(--warn);animation:qkblink 1s steps(2) 3}
@keyframes qkblink{50%{opacity:.35}}
@media (prefers-reduced-motion:reduce){.bigclock.done{animation:none}}
.presets{justify-content:center}
.tsbar{display:flex;gap:18px;flex-wrap:wrap;font-weight:600;color:var(--text2)}
.tstext{font:1.12rem/1.8 var(--mono);background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;color:var(--muted);overflow-wrap:break-word}
.tstext .ok{color:var(--ok)}.tstext .bad{color:var(--warn);background:#fecaca66;text-decoration:underline}.tstext .cur{border-left:2px solid var(--brand);color:var(--text)}
.sigpad,.gpad{border:2px dashed var(--line);border-radius:var(--r);background:#fff;overflow:hidden;line-height:0}
#sg-canvas,#gp-canvas{display:block;width:100%;touch-action:none;cursor:crosshair}
.memebox,.bcbox{text-align:center;margin:12px 0;overflow:auto}
.memebox canvas{max-width:100%;height:auto;border-radius:var(--r);box-shadow:var(--sh)}
.bcbox canvas{max-width:100%;height:auto;background:#fff}
.fvprev{display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;padding:12px;background:var(--bg);border-radius:var(--r)}
.fvprev canvas{image-rendering:pixelated;border:1px solid var(--line);background:repeating-conic-gradient(#e2e8f0 0 25%,#fff 0 50%) 0 0/12px 12px}
.fvprev canvas.lg{width:90px;height:90px;image-rendering:auto}
.labgrid{display:grid;gap:16px;align-items:start}
@media (min-width:700px){.labgrid{grid-template-columns:minmax(0,1fr) 240px}}
.labcanvas{line-height:0}.labcanvas canvas{width:100%;max-width:440px;height:auto;aspect-ratio:1;border-radius:var(--r);border:1px solid var(--line);cursor:crosshair}
.labcanvas.wide canvas{max-width:none;aspect-ratio:3/2;cursor:copy}
dl.stats{margin:12px 0}dl.stats>div{background:var(--brand-t);border-radius:var(--r);padding:10px 12px}
dl.stats dt{font-size:.75rem;color:var(--text2);font-weight:700;text-transform:uppercase;letter-spacing:.04em}
dl.stats dd{margin:0;font-size:1.35rem;font-weight:800;font-variant-numeric:tabular-nums}
.losschart{width:100%;height:80px;background:var(--bg);border-radius:var(--r)}
.netview{width:100%;height:auto;aspect-ratio:5/1;background:var(--bg);border-radius:var(--r)}
.gpred{font-size:1.15rem;margin:10px 0}.gpred b{color:var(--brand)}
ul.bars{list-style:none;padding:0;margin:6px 0;display:grid;gap:4px;font-size:.88rem}
ul.bars .bar{display:inline-block;height:8px;border-radius:999px;background:var(--brand);vertical-align:middle;margin-left:6px;max-width:60%}
.gpclasses{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0}.gpclasses li{background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-size:.85rem}
.gstatus{font-weight:700;text-align:center;min-height:1.6em}
.gboard{display:grid;gap:6px;margin:10px auto;padding:10px;border-radius:var(--rl);user-select:none}
.gboard.c4{grid-template-columns:repeat(7,1fr);max-width:460px;background:#3730a3}
.gboard.ttt{grid-template-columns:repeat(3,1fr);max-width:330px;background:var(--line)}
.gc{aspect-ratio:1;border:0;padding:0;cursor:pointer;min-height:0}
.c4 .gc{border-radius:50%;background:#e0e7ff}.c4 .gc.p1{background:#f59e0b}.c4 .gc.p2{background:#ef4444}
.ttt .gc{background:var(--card);border-radius:12px;font:800 clamp(2rem,10vw,3.4rem)/1 var(--sans)}.ttt .gc.p1{color:var(--brand)}.ttt .gc.p2{color:#f59e0b}
.gc:disabled{cursor:default;opacity:1}.gc.win{box-shadow:0 0 0 4px #10b981 inset}
.gc:focus-visible{outline:3px solid #10b981;outline-offset:1px}
/* Hugging Face trends */
.hf-tabs{display:flex;gap:4px;overflow-x:auto;padding-bottom:4px;margin-bottom:10px;scrollbar-width:thin}
.hf-tabs button{flex:none;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:7px 14px;font-weight:600;font-size:.9rem;cursor:pointer;color:var(--text2)}
.hf-tabs button.on{background:var(--grad);border-color:transparent;color:var(--on-accent)}
.hf-filters{display:grid;gap:8px 12px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.hf-filters .field,#hf-orgwrap{margin:0}
.hf-bar2{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-top:12px}
.hf-bar2 .btns{margin:0}.hf-h{margin:0;font-size:1.2rem}
.hf-status{font-size:.88rem;color:var(--text2);min-height:1.4em;margin:6px 0}.hf-status.load::before{content:"";display:inline-block;width:.8em;height:.8em;border:2px solid var(--brand);border-right-color:transparent;border-radius:50%;margin-right:6px;vertical-align:-.1em;animation:qkspin .8s linear infinite}
.hf-status.ok{color:var(--ok)}.hf-status.warn{color:#b45309}.hf-status.err{color:var(--warn)}
@keyframes qkspin{to{transform:rotate(360deg)}}
.hf-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:10px 0}
.kpi{background:var(--brand-t);border-radius:var(--r);padding:10px 12px}.kpi b{display:block;font-size:1.3rem;line-height:1.2;overflow-wrap:anywhere}.kpi span{font-size:.75rem;color:var(--text2);font-weight:700}
.hf-charts{display:grid;gap:12px;margin:12px 0}@media (min-width:800px){.hf-charts{grid-template-columns:1fr 1fr}}
.hf-chart{margin:0;background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:10px}
.hf-chart svg{width:100%;height:auto;max-width:100%;max-height:none}
.hf-chart rect{fill:var(--brand)}.hf-chart .lb{font:12px var(--sans);fill:var(--text)}.hf-chart .vl{font:600 12px var(--sans);fill:var(--text2)}
.hf-chart figcaption{font-size:.78rem;color:var(--muted);margin-top:4px}
.hf-grid{list-style:none;padding:0;display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.hf-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:8px;min-width:0}
.skel .hf-card{height:170px;background:linear-gradient(90deg,var(--bg),var(--line),var(--bg));background-size:200% 100%;animation:qkshim 1.2s linear infinite}
@keyframes qkshim{to{background-position:-200% 0}}
@media (prefers-reduced-motion:reduce){.skel .hf-card,.hf-status.load::before{animation:none}}
.hf-top{display:flex;gap:8px;align-items:flex-start}
.hf-rank{font-weight:800;color:var(--muted);font-size:.85rem;min-width:2.2em}.hf-rank.lt{color:#fff;text-shadow:0 1px 2px #0006}
.hf-name{flex:1;min-width:0}.hf-name a{font-weight:700;overflow-wrap:anywhere;text-decoration:none}.hf-name a:hover{text-decoration:underline}
.hf-meta{display:flex;flex-wrap:wrap;gap:4px;margin:4px 0 0}
.chip{font-size:.72rem;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:1px 8px;color:var(--text2)}
.hf-star{border:0;background:none;font-size:1.3rem;line-height:1;cursor:pointer;color:var(--muted);padding:2px 4px;min-height:0}.hf-star.on{color:#f59e0b}
.hf-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:4px 8px;margin:0}
.hf-stats dt{font-size:.68rem;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.03em}.hf-stats dd{margin:0;font-weight:700;font-variant-numeric:tabular-nums}
.hf-bar{display:block;height:6px;background:var(--line);border-radius:999px;overflow:hidden}.hf-bar>span{display:block;height:100%;background:linear-gradient(90deg,var(--brand-hot),var(--brand-amber))}
.hf-bar.sm{width:100%;margin-top:3px}
.hf-foot{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center;font-size:.8rem}
.hf-up{color:var(--ok);font-weight:700}.hf-up.dn{color:var(--warn)}
svg.spark{max-width:none;max-height:none}.spark path{fill:none;stroke:var(--brand);stroke-width:1.6}
.hf-cmp{display:inline-flex;align-items:center;gap:4px;margin-left:auto;font-size:.8rem;cursor:pointer}.hf-cmp input{width:auto;min-height:0}
.hf-sp{height:64px;border-radius:calc(var(--r) - 4px);display:flex;align-items:center;justify-content:space-between;padding:0 12px}
.hf-emoji{font-size:2rem;line-height:1}.hf-desc{font-size:.88rem;color:var(--text2);margin:0}
.hf-table td,.hf-table th{white-space:nowrap}.hf-cmpt td{min-width:130px}.hf-cmpt td.best{color:var(--ok);font-weight:800}
.hf-add{align-items:flex-end}.hf-add input{flex:1 1 220px}.hf-add .btn{flex:none}
.linkbtn{border:0;background:none;color:var(--brand);text-decoration:underline;cursor:pointer;padding:0;font:inherit;min-height:0}
.hf-author{background:var(--brand-t);border-radius:var(--r);padding:6px 12px}
.hf-src{margin-top:16px}

/* How-to steps on tool pages */
ol.howto{margin:0 0 1.5rem;padding:0 0 0 1.35rem;max-width:42rem}
ol.howto li{margin:.45rem 0;line-height:1.55}
section.howto-sec{margin:1.25rem 0 1.75rem}
section.howto-sec h2{margin-bottom:.65rem;font-size:1.25rem}