:root{--bg:#ffffff;--fg:#1a1a1a;--muted:#3d3d3d;--brand:#0b6fd0;--accent:#b3261e;--card:#fff;--line:#d1d5db;--soft:#f3f4f6;--btn:#0b6fd0;--btn-h:#0959a8}
html{font-size:17px}html.s2{font-size:19px}html.s3{font-size:21px}
html.hc{--bg:#000;--fg:#fff;--muted:#fff;--brand:#ffeb3b;--accent:#ffeb3b;--card:#000;--line:#fff;--soft:#111;--btn:var(--brand);--btn-h:var(--brand)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:Verdana,"Segoe UI",Arial,sans-serif;line-height:1.6}
.wrap{max-width:1180px;margin:0 auto;padding:0 1rem}
a{color:var(--brand);text-underline-offset:3px}a:hover{text-decoration-thickness:3px}
:focus-visible{outline:4px solid var(--accent);outline-offset:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--fg);color:var(--bg);padding:.6rem 1rem;z-index:9}.skip:focus{left:1rem}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.toolbar{background:var(--soft);border-bottom:1px solid var(--line);font-size:.85rem}
.toolbar .wrap{display:flex;flex-wrap:wrap;gap:.4rem;align-items:center;padding:.4rem 1rem}
.toolbar button{font:inherit;min-height:44px;padding:.2rem .7rem;border:2px solid var(--fg);background:var(--card);color:var(--fg);border-radius:8px;cursor:pointer}
.toolbar button[aria-pressed=true]{background:var(--btn);color:var(--bg);border-color:var(--btn)}
.toolbar .help{margin-left:auto;font-weight:bold}
header.site{border-bottom:4px solid var(--brand);padding:.8rem 0}
.brand{font-size:1.8rem;font-weight:bold;text-decoration:none;color:var(--fg);margin-bottom:.5rem}
nav ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.3rem}
nav a{display:block;padding:.45rem .8rem;border-radius:8px;text-decoration:none;font-weight:bold}
nav a{color:var(--brand)}nav a:hover{background:var(--btn-h);color:var(--bg)}nav a[aria-current=page]{background:var(--btn);color:var(--bg);text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:5px}
main{padding:1.2rem 0 2rem}h1{font-size:2.1rem;line-height:1.2}h2{font-size:1.5rem;margin-top:2rem}h3{font-size:1.2rem;margin:.2rem 0}
.lead{font-size:1rem;max-width:46em}
.btn{display:inline-block;font:inherit;font-weight:bold;background:var(--btn);color:var(--bg);border:3px solid var(--btn);padding:.55rem 1.1rem;border-radius:10px;text-decoration:none;cursor:pointer;min-height:48px;margin:.2rem 0}
.btn.ghost{background:transparent;color:var(--btn)}
.btn:hover,.btn:focus-visible{background:var(--btn-h);border-color:var(--btn-h);color:var(--bg)}
.btn.ghost:hover{background:var(--btn-h);color:var(--bg)}.btn.big{font-size:1.15rem;padding:.8rem 1.4rem}
.hero{background:var(--soft);border-radius:16px;padding:1.2rem 1.6rem;margin-top:.5rem}
.tiles{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:.7rem}.tile{width:100%;text-align:center}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:1rem}
.card{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:1rem 1.2rem}
.card p{margin:.4rem 0}.badges{display:flex;flex-wrap:wrap;gap:.3rem}
.b{font-size:.8rem;font-weight:bold;padding:.1rem .55rem;border-radius:20px;border:2px solid var(--fg)}
.b.easy{background:#dcfce7;color:#14532d;border-color:#15803d}.b.medium{background:#fef3c7;color:#78350f;border-color:#b45309}.b.hard{background:#fee2e2;color:#7f1d1d;border-color:#b91c1c}
html.hc .b{background:#000!important;color:#fff!important;border-color:#fff!important}html.hc .b.easy{color:#86efac!important;border-color:#86efac!important}html.hc .b.medium{color:#fcd34d!important;border-color:#fcd34d!important}html.hc .b.hard{color:#fca5a5!important;border-color:#fca5a5!important}
details summary{cursor:pointer;font-weight:bold;color:var(--brand);padding:.3rem 0}
.sponsor{border:3px dashed var(--accent)}.sp-label{font-weight:bold;color:var(--accent);letter-spacing:.05em}
.info{border-color:var(--accent)}
.alert{background:var(--soft);border-left:8px solid var(--accent);padding:1rem 1.4rem;border-radius:10px;margin-top:2rem}
.newslist{list-style:none;padding:0}.news{padding:.7rem 0;border-bottom:1px solid var(--line)}.news a{font-weight:bold;font-size:1.05rem}
.news .meta{display:block;color:var(--muted);font-size:.9rem}
.small{font-size:.85rem;color:var(--muted)}
.signup{border:2px solid var(--brand);border-radius:14px;padding:.8rem 1.2rem;margin-top:2rem}
input[type=email],input[type=search],select{font:inherit;padding:.5rem;min-height:48px;border:2px solid var(--fg);border-radius:8px;background:var(--card);color:var(--fg);width:100%;max-width:420px;display:block;margin:.3rem 0 .8rem}
label{font-weight:bold}.filters{display:flex;flex-wrap:wrap;gap:0 1.5rem;align-items:end}.filters>*{flex:0 1 auto}
.steps li{margin:.5rem 0}.guide{border-top:2px solid var(--line)}.tip{background:var(--soft);padding:.6rem 1rem;border-radius:8px}
.check label{display:block;font-weight:normal;padding:.4rem 0}.check input{width:1.4rem;height:1.4rem;vertical-align:middle;margin-right:.5rem}
fieldset{border:2px solid var(--line);border-radius:12px}legend{font-weight:bold}
.gloss dt{font-weight:bold;margin-top:1rem;color:var(--brand)}.gloss dd{margin:0 0 0 1rem}
.faq{border-bottom:1px solid var(--line);padding:.4rem 0}
footer{border-top:4px solid var(--brand);padding:1rem 0;background:var(--soft);font-size:.9rem}
@media print{.toolbar,header nav,footer,.filters,.signup,.skip{display:none!important}.card{break-inside:avoid;border:1px solid #000}details>*{display:block}}
.brandline{display:inline-block;font-size:1.05rem;font-weight:normal;color:var(--muted);margin-left:.5rem}
.info .r-uk,.info .r-us{display:inline-block;vertical-align:top;width:48%;margin-right:2%}@media(max-width:700px){.info .r-uk,.info .r-us{width:100%}}
.grid.pair{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.flag{display:inline-block;vertical-align:-0.1em;margin-right:.4em;border:1px solid var(--line);border-radius:2px}html.hc .flag{border-color:#fff}
.brand{display:inline-block;line-height:0}.logo{display:block;height:108px;width:auto}.logo-hc{display:none}
html.hc .logo-std{display:none}html.hc .logo-hc{display:block}
@media(max-width:600px){.logo{height:84px}}
.hero h1{font-size:1.6rem}.hero .lead{font-size:1rem}.hero .btn.big{font-size:1.05rem;padding:.65rem 1.2rem}

/* single-line button labels (14 Oct 2026): text never wraps; the row of buttons wraps instead */
.btn,button,.toolbar button,nav a{white-space:nowrap}
.tiles{display:flex;flex-wrap:wrap;gap:.7rem}.tiles li{flex:0 0 auto}.tile{width:auto}
.actions{display:flex;flex-wrap:wrap;gap:.4rem;align-items:center}
.mob{display:none}@media(max-width:480px){.opt{display:none}.mob{display:inline}}

.signup h2{margin:.1rem 0 .2rem;font-size:1.25rem}.signup p{margin:.2rem 0 .5rem}
.subscribe .row{display:flex;gap:.6rem;align-items:center;flex-wrap:nowrap}.subscribe input[type=email]{margin:0;max-width:420px;flex:1 1 auto}.subscribe .btn{margin:0;flex:0 0 auto}
.subscribe .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{margin:.5rem 0 0;font-weight:bold}.msg.good{color:var(--fg)}.msg.bad{color:var(--accent)}
@media(max-width:600px){.subscribe .row{flex-direction:column;align-items:stretch}.subscribe input[type=email]{max-width:none}}
.explainers{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}
.explainers h2{margin:.2rem 0 .3rem;font-size:1.3rem}
.signup{max-width:50%}@media(max-width:900px){.signup{max-width:none}}
.filters{align-items:flex-start;gap:.5rem 1.5rem}.fgroup{display:flex;flex-direction:column;align-items:flex-start;flex:0 1 420px}.fgroup label{margin-bottom:.2rem}.fgroup input,.fgroup select{margin:0 0 .8rem;width:100%}
@media(max-width:600px){.filters{flex-direction:column;align-items:stretch}.fgroup{flex:1 1 auto}}
.grid+.grid,.cat+.grid,.grid+section.cat{margin-top:1rem}
.prices{border-collapse:collapse;width:100%;margin:.5rem 0}.prices th,.prices td{border-bottom:1px solid var(--line);padding:.55rem .7rem;text-align:left}.prices thead th{border-bottom:2px solid var(--brand)}
.pay{white-space:nowrap}.pay .btn{min-height:44px;padding:.35rem .8rem;margin:.15rem 0}
.placement{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;align-items:start;padding:1rem 0;border-bottom:1px solid var(--line)}.placement:last-child{border-bottom:none}.pl-price{font-size:1.1rem}
.ex-tag{display:inline-block;margin:0 0 .3rem;font-size:.8rem;font-weight:bold;letter-spacing:.05em;text-transform:uppercase;background:var(--fg);color:var(--bg);padding:.05rem .5rem;border-radius:6px}
.nl-mock{border:2px solid var(--line);border-radius:14px;padding:1rem 1.2rem;background:var(--card)}.nl-logo{height:81px;width:auto}
.nl-sponsor{border:2px dashed var(--accent);padding:.8rem 1rem;border-radius:10px;margin-top:.5rem}.nl-sponsor p{margin:.2rem 0 .6rem}
.ex-article h3{font-size:1.25rem}
@media(max-width:800px){.placement{grid-template-columns:1fr}.prices,.prices tbody,.prices tr,.prices th,.prices td{display:block}.prices thead{position:absolute;left:-9999px}.prices tr{border-bottom:2px solid var(--line);padding:.4rem 0}.prices td,.prices th{border:0;padding:.15rem .3rem}}
@media(max-width:800px){.prices td[data-l]::before{content:attr(data-l) ": ";font-weight:bold}}
@media(min-width:801px){.prices th,.prices td{white-space:nowrap}}
.adform textarea{font:inherit;padding:.5rem;border:2px solid var(--fg);border-radius:8px;background:var(--card);color:var(--fg);width:100%;margin:0 0 .8rem}
.adform input[type=text],.adform input[type=url]{font:inherit;padding:.5rem;min-height:48px;border:2px solid var(--fg);border-radius:8px;background:var(--card);color:var(--fg);width:100%;margin:0 0 .8rem}
.adform input[type=file]{font:inherit;margin:0 0 .8rem}.adform .fgroup{flex:none;width:100%}.adform select,.adform input[type=email]{max-width:none}
.pv-img{max-width:120px;max-height:80px;display:block;margin:.3rem 0}.adform+.example{position:sticky;top:1rem}
.pv-h{font-size:1.2rem;font-weight:bold;margin:.2rem 0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
select.locked{pointer-events:none;background:#f3f4f6;color:#111}

.grid>article.card{display:flex;flex-direction:column;height:100%;box-sizing:border-box;min-width:0}.grid>article.card>.actions{margin-top:auto;padding-top:.4rem}
.adform .msg{white-space:pre-line}

.social{display:flex;gap:.6rem;align-items:center;margin:.6rem 0 0}
.social-link{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;border-radius:50%;border:2px solid var(--line);color:var(--ink);background:var(--bg);text-decoration:none}
.social-link:hover,.social-link:focus{border-color:var(--brand);color:var(--brand);outline:2px solid var(--brand);outline-offset:2px}
html.hc .social-link{border-color:#fff;color:#fff;background:#000}
html.hc .social-link:hover,html.hc .social-link:focus{border-color:#fff;color:#000;background:#fff;outline-color:#fff}
.author{border:2px solid var(--line);border-radius:14px;padding:.8rem 1.2rem;margin-top:2rem;max-width:46em}.author h2{margin:.1rem 0 .3rem;font-size:1.25rem}.author p{margin:.2rem 0}
/* Trending In AI (15 Oct 2026) */
.trend-list,.trend-mini,.trend-toc{list-style:none;padding:0;margin:0}
.trend-list{display:grid;gap:1rem}.trend-list .card h3{margin-top:.2rem}.trend .meta{margin:.2rem 0;font-weight:bold}
.trend-toc{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem;margin:1rem 0}.trend-toc a{font-weight:bold}
.trend-mini{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem;margin-bottom:1rem}.trend-mini h3{margin:.2rem 0 .5rem}
.trend p,.trend-mini p{font-size:inherit}
@media (max-width:440px){nav ul{gap:.15rem}nav a{padding:.45rem .45rem}}
/* Footer links on one row (15 Oct 2026) */
footer .wrap>p:first-child{white-space:nowrap;font-size:.85rem;letter-spacing:-.005em}
@media (max-width:1100px){footer .wrap>p:first-child{white-space:normal}}
/* 15 Oct 2026 restructure: header search, topic hubs, breadcrumbs, Read Next */
.sitesearch{position:relative;max-width:640px;margin:.7rem 0 0}.sitesearch .row{display:flex;gap:.5rem;align-items:stretch}
.sitesearch input[type=search]{font:inherit;font-size:1.05rem;min-height:52px;margin:0;max-width:none;flex:1 1 auto;border:3px solid var(--brand)}
.sitesearch .btn{margin:0;flex:0 0 auto}
.ss-res{position:absolute;z-index:20;left:0;right:0;top:100%;margin-top:.3rem;background:var(--card);border:2px solid var(--line);border-radius:12px;padding:.6rem 1rem;box-shadow:0 6px 18px rgba(0,0,0,.15)}
.ss-res ul{list-style:none;padding:0;margin:0}.ss-res li{padding:.45rem 0;border-top:1px solid var(--line)}.ss-res li:first-child{border-top:0}
.ss-k{font-size:.8rem;font-weight:bold;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:0 .5rem;margin-left:.3rem;white-space:nowrap}
#sq-res{margin-top:1rem}#sq-res .ss-k{margin-left:.4rem}
.sitesearch.big{max-width:none}.sitesearch.big label{display:block;margin-bottom:.3rem}
.crumbs{margin:0 0 .6rem}.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.2rem}
.crumbs li+li::before{content:"\203A";margin:0 .45rem 0 .2rem;color:var(--muted)}
nav.crumbs a{display:inline;padding:0;font-weight:normal;color:var(--brand);text-decoration:underline;border-radius:0}nav.crumbs a:hover{background:none;color:var(--btn-h)}
.hubs{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;margin:1rem 0}
.card.hub{border-width:3px;border-color:var(--brand)}.card.hub a{display:flex;align-items:center;gap:.6rem;font-size:1.3rem;font-weight:bold;color:var(--brand);text-decoration:none}
.card.hub a:hover .hub-t,.card.hub a:focus-visible .hub-t{text-decoration:underline}.hub-ic{font-size:1.8rem;line-height:1}
.starthere{counter-reset:sh}.starthere>li{counter-increment:sh;position:relative;padding-left:3.2rem}.starthere>li::before{content:counter(sh);position:absolute;left:1rem;top:1rem;width:1.7rem;height:1.7rem;border-radius:50%;background:var(--btn);color:var(--bg);font-weight:bold;text-align:center;line-height:1.7rem}
.explainers h3{margin:.2rem 0 .3rem}.readnext{margin-top:2rem}.az ul{columns:2 22rem}.az li{margin:.3rem 0;break-inside:avoid}
@media(max-width:600px){.sitesearch .row{gap:.4rem}.sitesearch .btn{padding:.55rem .8rem}}
@media print{.sitesearch,.crumbs{display:none!important}}
.filters .fgroup{flex-basis:340px}
.aw-stats{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(9.5em,1fr));gap:.8rem;margin:1rem 0}.aw-stats .card{margin:0}.aw-n{display:block;font-size:1.6rem;font-weight:bold;color:var(--brand)}
.aw-stats .card{display:flex;flex-direction:column}.aw-ic{font-size:1.6rem;line-height:1}
.aw-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,22em),1fr));gap:1rem;margin:1rem 0}
.aw-fig{margin:0}.aw-fig h3{margin:.1rem 0 .6rem}.aw-donut{width:11em;height:11em;display:block;margin:.4rem auto}.aw-donut circle{transform:none}.aw-dt{font-size:7px;font-weight:bold;fill:var(--fg)}
.aw-key,.aw-bars,.aw-cal{list-style:none;padding:0;margin:.6rem 0}.aw-key li{display:flex;gap:.5rem;align-items:flex-start;margin:.35rem 0}.aw-sw{flex:0 0 1.1em;height:1.1em;border-radius:3px;margin-top:.15em;border:1px solid var(--line)}
.aw-bars li{display:grid;grid-template-columns:minmax(6em,9.5em) 1fr 2.2em;gap:.5rem;align-items:center;margin:.45rem 0}.aw-bt{background:var(--soft);border-radius:6px;height:1.1em;overflow:hidden;border:1px solid var(--line)}.aw-bf{display:block;height:100%;background:#1090FD}.aw-bv{text-align:right}
.aw-cal{display:flex;flex-wrap:wrap;gap:.6rem}.aw-day{display:flex;flex-direction:column;align-items:center;text-align:center;min-width:7.5em;padding:.5rem;border:2px solid var(--line);border-radius:10px}.aw-ds{font-size:1.6rem;font-weight:bold;line-height:1.2}
.aw-day.ok{border-color:#1090FD}.aw-day.ok .aw-ds{color:#0b6fd0}.aw-day.fail{border-color:#FF1A00}.aw-day.fail .aw-ds{color:#b3261e}.aw-dn{font-weight:bold}
html.hc .aw-bf{background:var(--brand)}html.hc .aw-day .aw-ds{color:var(--fg)}
.aw-meet h2{margin-top:.2rem}
.aw-day .aw-ds{display:block;width:.9em;height:.9em;border-radius:50%;background:var(--line);margin:.35rem 0}.aw-day.ok .aw-ds{background:#1090FD}.aw-day.fail .aw-ds{background:#FF1A00}html.hc .aw-day .aw-ds{background:var(--fg)}
.exo-ic{width:1.2em;height:1.2em;vertical-align:-.2em;margin-right:.25em;object-fit:cover}.aw-meet .aw-av{float:left;width:6em;height:6em;object-fit:contain;margin:0 1rem .5rem 0}.aw-meet::after{content:"";display:block;clear:both}
.toolbar .exo-link{margin-left:auto}.toolbar .exo-link+.help{margin-left:1rem}
.aw-meet .aw-av{width:140px;height:140px}@media (max-width:480px){.aw-meet .aw-av{float:none;display:block;margin:0 0 .6rem}}
.prompt-box{background:var(--soft);border:2px solid var(--line);border-left:6px solid var(--brand);border-radius:10px;padding:1rem 1.2rem;margin:1rem 0}.prompt-box pre{white-space:pre-wrap;word-wrap:break-word;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1em;margin:0 0 .8rem;line-height:1.5}.copy-msg{font-weight:bold;margin-left:.5rem}

/* Routine Runs list (20 Oct 2026) */
.aw-runs{list-style:none;padding:0;margin:.6rem 0}.aw-run{display:flex;flex-wrap:wrap;gap:.15rem .9rem;align-items:baseline;padding:.55rem 0;border-bottom:1px solid var(--line)}.aw-run:last-child{border-bottom:0}
.aw-rw{flex:0 0 100%;font-size:.9em;color:var(--fg)}.aw-rn{font-weight:bold;flex:1 1 auto;min-width:0;overflow-wrap:anywhere}.aw-rr{display:inline-flex;align-items:center;gap:.4rem;white-space:nowrap}
.aw-ri{display:inline-block;width:.8em;height:.8em;border-radius:50%;background:#1090FD}.aw-run.fail .aw-ri{background:#FF1A00}.aw-run.fail .aw-rr{color:#b3261e;font-weight:bold}html.hc .aw-ri{background:var(--fg)}html.hc .aw-run.fail .aw-rr{color:var(--fg)}

/* 29 Oct 2026: long buttons on narrow phones at large text sizes no longer run off the screen (tighter padding; wrap only if a label still cannot fit) */
@media(max-width:480px){.btn{padding-left:.6rem;padding-right:.6rem;max-width:100%;white-space:normal}.s3 .btn{font-size:.9em}}
@media(max-width:480px){nav.gtoc{padding-left:.7rem;padding-right:.5rem}nav.gtoc ol{padding-left:1.2rem}nav.gtoc a{padding-left:.25rem;padding-right:.25rem}}
.s2 footer .wrap>p:first-child,.s3 footer .wrap>p:first-child{white-space:normal}
@media(min-width:801px){.prices td{white-space:normal}}
.nl-list{list-style:none;margin:0;padding:0}.nl-list>li{margin:0;padding:1rem 0;border:0;border-bottom:1px solid var(--line);background:none;box-shadow:none}.nl-list>li:first-child{border-top:1px solid var(--line)}.nl-list h2{margin:0 0 .3rem}.nl-list p{margin:0}
.issue,.issue>div{margin-left:0;padding-left:0;border:0;background:none;box-shadow:none}.issue ul,.issue ol{padding-left:1.2rem}.issue hr{border:0;border-top:1px solid var(--line);margin:1.2rem 0}