@charset "UTF-8";
@font-face{font-family:"Lexend";src:url("/fonts/lexend-var-latin.woff2") format("woff2");font-style:normal;font-weight:400 700;font-display:swap}
@font-face{font-family:"Sometype Mono";src:url("/fonts/sometype-mono-var-latin.woff2") format("woff2");font-style:normal;font-weight:400 700;font-display:swap}

:root{
  --paper:#f3f5f7;--paper-warm:#f6f3ed;--white:#fff;--ink:#172230;--muted:#526172;
  --line:#d8dfe7;--line-strong:#b7c2ce;--blue:#2856c7;--cyan:#086d7b;--violet:#6b57be;--ice:#e9eff7;--focus:#2856c7;
  --night:#0c1623;--night-2:#111f30;--night-3:#17283b;--night-text:#f3f7fb;--night-muted:#acbac9;--night-line:#2c4055;
  --radius:12px;--shadow-paper:0 12px 30px rgba(17,31,48,.055);--shadow-cover:0 18px 44px rgba(4,13,25,.19);
  --display:"Lexend","Avenir Next","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --body:"Avenir Next","Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  --mono:"Sometype Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace
}
@keyframes aperture-enter{from{opacity:.94;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
@keyframes j-enter{from{opacity:.92;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.68 var(--body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}
button{color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.42}
a{color:inherit;text-decoration:none}img,svg{display:block}img{max-width:100%}
h1,h2,h3,h4,p{margin:0}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
::selection{color:var(--ink);background:#d9e5ff}
.container{width:min(1280px,calc(100% - 80px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;z-index:100;top:-80px;left:18px;min-height:44px;padding:10px 16px;color:#fff;background:var(--night);border:1px solid var(--night-line);border-radius:10px}
.skip-link:focus{top:12px}
.masthead,.topic-bar,.lead-story,.article-header,.article-cover{animation:aperture-enter 280ms ease-out both}
.topic-bar{animation-delay:40ms}.lead-story,.article-header{animation-delay:75ms}.article-cover{animation-delay:110ms}
.is-entering{animation:j-enter 380ms ease-out both}

/* Masthead and topic navigation */
.masthead{position:relative;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.masthead-inner{min-height:82px;display:flex;align-items:center;gap:24px}
.wordmark{min-height:44px;display:flex;align-items:center;gap:12px;margin-right:auto;font:700 29px/1 var(--display);letter-spacing:-1px}
.wordmark small{display:block;margin-top:6px;color:var(--muted);font:13px/1.25 var(--body);letter-spacing:.48px}
.brand-mark{width:34px;height:34px;padding:7px;color:#fff;background:linear-gradient(145deg,#1e526e,#2856c7 52%,#6754ad);border:1px solid #254d7b;border-radius:10px;box-shadow:inset 0 1px rgba(255,255,255,.27),0 6px 14px rgba(40,86,199,.14)}
.brand-mark svg{width:100%;height:100%}
.main-nav{display:flex;align-items:center;gap:23px;margin-right:10px}
.main-nav a,.main-nav button{position:relative;min-width:40px;min-height:44px;justify-content:center;display:inline-flex;align-items:center;padding:0 2px;border:0;background:none;font-size:14px;font-weight:650}
.main-nav a:after,.main-nav button:after{content:"";position:absolute;right:2px;bottom:6px;left:2px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform 160ms ease}
.search-trigger{width:168px;min-height:42px;display:flex;align-items:center;gap:9px;padding:0 12px;color:var(--muted);background:#f7f8fa;border:1px solid var(--line);border-radius:10px;font-size:13px;transition:border-color 160ms ease,background 160ms ease}
.search-trigger svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7}
.search-trigger kbd{margin-left:auto;padding-left:10px;border-left:1px solid var(--line);font:13px var(--mono)}
.mobile-menu{display:none}
.topic-bar{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.topic-bar-inner{min-height:47px;display:flex;align-items:center;gap:22px}
.topic-label{min-height:40px;flex:none;display:inline-flex;align-items:center;padding-right:20px;color:var(--blue);border-right:1px solid var(--line);font:650 12px var(--mono)}
.topic-strip{min-width:0;flex:1;display:flex;align-items:center;gap:25px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:none;scroll-behavior:smooth;white-space:nowrap}
.topic-strip::-webkit-scrollbar{display:none}
.topic-strip a,.topic-strip>span{min-width:40px;min-height:40px;justify-content:center;flex:none;display:inline-flex;align-items:center;color:var(--muted);font-size:13px;transition:color 160ms ease}
.topic-strip a[aria-current=true]{color:var(--blue);box-shadow:inset 0 -2px var(--blue)}
.topic-next{width:40px;height:40px;flex:none;padding:0;color:var(--blue);background:#fff;border:1px solid var(--line);border-radius:10px;font:18px/1 var(--mono)}

/* Shared cards and controls */
.card-link{display:block;min-width:0}
.card-cover{position:relative;isolation:isolate;aspect-ratio:3/2;overflow:hidden;background:var(--night);border:1px solid #304860;border-radius:var(--radius);box-shadow:var(--shadow-cover),inset 0 1px rgba(255,255,255,.1);transition:transform 180ms ease,border-color 180ms ease,box-shadow 180ms ease}
.card-cover:after,.article-cover:after{content:"";position:absolute;z-index:1;inset:0;pointer-events:none;border-radius:inherit;box-shadow:inset 0 1px rgba(126,231,242,.22),inset 1px 0 rgba(116,141,255,.1),inset -1px 0 rgba(150,118,237,.12)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 280ms ease}
.card-title{font:650 19px/1.48 var(--display);letter-spacing:-.25px;text-wrap:pretty;transition:color 160ms ease}
.card-meta{display:flex;align-items:center;flex-wrap:wrap;gap:9px;color:var(--muted);font:12px/1.5 var(--mono)}
.card-meta time{margin-left:auto;white-space:nowrap}
.topic-tag{color:var(--blue);font:650 13px/1.5 var(--body)}
.card-short{display:-webkit-box;margin-top:9px;overflow:hidden;color:var(--muted);font-size:14px;line-height:1.72;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.read-story{min-height:40px;display:inline-flex;align-items:center;gap:12px;margin-top:12px;color:var(--blue);font-size:13px;font-weight:650}.read-story>span{font:17px var(--mono)}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:24px}
.section-heading h2{font:680 27px/1.3 var(--display);letter-spacing:-.5px}
.section-kicker,.article-kicker{display:block;margin-bottom:7px;color:var(--cyan);font:650 12px/1.5 var(--mono);letter-spacing:.25px}
.section-count{margin-left:10px;color:var(--muted);font:500 12px var(--mono);vertical-align:top}
.text-link{min-height:40px;display:inline-flex;align-items:center;color:var(--blue);border-bottom:1px solid transparent;font-size:13px;font-weight:650;transition:border-color 160ms ease,color 160ms ease}
.solid-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:0 18px;color:#fff;background:#0b7989;border:1px solid #0b7989;border-radius:10px;font-size:14px;font-weight:650;transition:background 160ms ease,border-color 160ms ease,transform 160ms ease}

/* Home: graphite reading stage */
.lead-section{border-bottom:1px solid var(--night-line)}
.home-intro{position:relative;padding:26px 0 48px;overflow:hidden;color:var(--night-text);background:linear-gradient(rgba(120,147,175,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,147,175,.06) 1px,transparent 1px),linear-gradient(145deg,#0c1623,#111f30 58%,#101a29);background-size:32px 32px,32px 32px,auto}
.home-intro:before{content:"";position:absolute;top:-160px;right:-100px;width:520px;height:360px;pointer-events:none;background:radial-gradient(circle,rgba(61,116,154,.2),transparent 68%)}
.edition-line{position:relative;display:flex;justify-content:space-between;gap:20px;margin-bottom:18px;color:var(--night-muted);font:12px/1.5 var(--mono)}
.edition-line .edition-title{margin:0;color:var(--night-text);font:inherit;letter-spacing:0}
.edition-line i{width:8px;height:8px;display:inline-block;margin:0 9px 1px 0;background:#4ab7c6;border:1px solid #87d7df;border-radius:2px}
.edition-line b{margin:0 9px;color:#91a5bb;font-weight:400}
.membership-lead{position:relative;margin:0 0 24px}.membership-lead .membership-wrap{padding-top:0}
.membership-band{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px 26px;margin:28px 0 0;padding:22px 24px;color:var(--ink);background:var(--paper-warm);border:1px solid #d8d1c5;border-left:3px solid var(--cyan);border-radius:var(--radius);box-shadow:0 10px 24px rgba(3,12,24,.12)}
.membership-lead .membership-band{margin:0;padding:16px 20px;box-shadow:none}
.membership-band .section-kicker{margin-bottom:3px;color:#086d7b}
.membership-band>div>p{margin:0;font:600 22px/1.42 var(--display);letter-spacing:-.3px}.membership-lead .membership-band>div>p{font-size:19px}
.membership-band strong{margin-left:6px;color:var(--blue);font:650 28px var(--mono)}.membership-lead .membership-band strong{font-size:24px}
.membership-band small{color:var(--muted);font-size:13px}
.membership-disclosure{grid-column:1/-1;margin:0;padding-top:11px;color:var(--muted);border-top:1px solid #dad4ca;font-size:12px;line-height:1.7}
.membership-disclosure a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.membership-wrap{padding-top:28px}.membership-wrap .membership-band{margin-bottom:0}
.home-reading-heading{position:relative;margin:25px 0 18px}.home-reading-heading h2{color:var(--night-text);font-size:23px}
.lead-grid{min-width:0;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(330px,.92fr);gap:24px;align-items:stretch}
.home-intro .lead-story,.home-reading-side{min-width:0;overflow:hidden;background:#121f2f;border:1px solid #2d4258;border-radius:var(--radius);box-shadow:0 18px 40px rgba(2,10,20,.22),inset 0 1px rgba(255,255,255,.035)}
.home-intro .lead-story .card-cover{aspect-ratio:16/8.4;border:0;border-bottom:1px solid #2d4258;border-radius:0;box-shadow:none}
.lead-copy{padding:20px 22px 22px}.lead-copy .card-meta{gap:12px;margin-bottom:9px;color:var(--night-muted)}
.home-intro .topic-tag{color:#75d6df}
.home-intro .lead-copy .lead-title{max-width:28ch;color:var(--night-text);font:680 clamp(28px,2.5vw,37px)/1.33 var(--display);letter-spacing:-.75px;text-wrap:balance}
.lead-copy>p{max-width:62ch;display:-webkit-box;margin-top:10px;overflow:hidden;color:var(--night-muted);font-size:14px;line-height:1.72;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.home-intro .read-story{color:#8fdde5}
.home-step{width:32px;height:32px;display:inline-grid;place-items:center;flex:none;color:#b8e8ed;background:#192d42;border:1px solid #35516b;border-radius:8px;font:550 12px/1 var(--mono)}
.home-reading-side{display:flex;flex-direction:column;padding:4px 20px 0;border-top-color:#4ab7c6}
.home-reading-list{margin:0;padding:0;list-style:none}.home-reading-list li+li{border-top:1px solid var(--night-line)}
.home-reading-list a{min-height:92px;display:grid;grid-template-columns:32px minmax(0,1fr);gap:14px;align-items:start;padding:18px 0}
.home-reading-list .card-title{display:block;color:var(--night-text);font-size:16px;line-height:1.55}
.home-reading-list small{display:block;margin-top:5px;color:var(--night-muted);font-size:12px}
.home-recommendation{margin:auto 0 0;padding:16px 0 18px;color:var(--night-muted);border-top:1px solid var(--night-line);font-size:12px;line-height:1.75}
.home-recommendation .text-link{display:flex;margin-top:5px;color:#88d8e0;border:0;line-height:1.6}

/* Home directory panels */
.home-directory{padding-bottom:8px}.home-topics{padding-top:44px}
.home-directory .section-heading{margin-bottom:18px}.home-directory .section-heading>.text-link{white-space:nowrap}
.home-topic-group{--group-accent:var(--blue);--group-tint:rgba(40,86,199,.055);min-width:0;display:grid;grid-template-columns:minmax(190px,.72fr) minmax(220px,.98fr) minmax(300px,1.58fr);gap:24px;margin-bottom:14px;padding:22px;background:linear-gradient(90deg,var(--group-tint),#fff 31%);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.home-topic-group:nth-of-type(2n){--group-accent:var(--cyan);--group-tint:rgba(8,125,143,.055)}
.home-topic-group:nth-of-type(3n){--group-accent:var(--violet);--group-tint:rgba(107,87,190,.05)}
.home-topic-heading{min-width:0;padding:6px 20px 4px 14px;border-left:3px solid var(--group-accent);border-right:1px solid var(--line)}
.home-topic-heading h3{font:650 21px/1.45 var(--display)}.home-topic-heading h3 a{min-height:40px;display:flex;align-items:center}
.home-topic-heading p{margin-top:6px;color:var(--muted);font-size:13px;line-height:1.72}
.home-topic-count{display:block;margin-top:13px;color:var(--muted);font:12px var(--mono)}
.home-topic-feature,.home-topic-links{min-width:0}.home-topic-feature .card-cover{aspect-ratio:16/9;box-shadow:0 10px 24px rgba(6,17,31,.14)}
.home-topic-feature .card-title{margin-top:10px;font-size:16px;line-height:1.55}
.home-topic-links ul,.home-recent ul{margin:0;padding:0;list-style:none}.home-topic-links li{border-bottom:1px solid var(--line)}
.home-topic-links li a{min-height:44px;display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:9px 2px;font-size:14px;line-height:1.62}
.home-topic-links li:first-child a{padding-top:2px}.home-topic-links small{flex:none;color:var(--muted);font-size:11px}
.home-topic-more{min-height:40px;display:inline-flex;align-items:center;margin-top:8px;border:0}
.home-recent{margin-top:30px;padding:26px 0 34px;border-top:1px solid var(--line-strong)}
.home-recent ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}.home-recent li{border-top:1px solid var(--line)}
.home-recent li a{min-height:48px;display:grid;grid-template-columns:84px minmax(0,1fr);align-items:baseline;gap:14px;padding:12px 0;font-size:14px;line-height:1.65}
.home-recent li a>span{grid-column:2}.home-recent time{grid-column:1;grid-row:1;color:var(--muted);border-right:1px solid var(--line);font:11px/1.7 var(--mono)}

/* Converter and tools */
.tool-section{padding-bottom:50px}
.unit-tool{position:relative;min-width:0;display:grid;grid-template-columns:.82fr 1.42fr;gap:42px;padding:30px 32px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.unit-tool:before{content:"";position:absolute;inset:0 0 auto auto;width:42%;height:100%;pointer-events:none;opacity:.55;background-image:linear-gradient(rgba(40,86,199,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(40,86,199,.055) 1px,transparent 1px);background-size:24px 24px;mask-image:linear-gradient(90deg,transparent,#000)}
.tool-copy,.tool-workspace{position:relative;min-width:0}.tool-copy h2{font:680 28px/1.35 var(--display);letter-spacing:-.45px}
.tool-copy p{max-width:34ch;margin:12px 0 16px;color:var(--muted);font-size:14px;line-height:1.75}.tool-workspace{padding-top:2px}
.j-converter{margin:24px 0;padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.j-converter h2{margin:0 0 18px;font:650 22px var(--display)}
.tool-workspace .j-converter{margin:0;padding:0;background:transparent;border:0;border-radius:0}
.tool-workspace .j-converter+.j-converter{margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.tool-workspace .j-converter h2{font:600 15px var(--mono)}
.unit-inputs,.j-fields{display:grid;grid-template-columns:minmax(0,1fr) 132px auto;gap:10px;align-items:end}
.unit-inputs label,.j-fields label{min-width:0;display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:12px}
.unit-inputs input,.unit-inputs select,.j-fields input,.j-fields select{width:100%;min-width:0;height:44px;padding:0 12px;color:var(--ink);background:#fff;border:1px solid var(--line-strong);border-radius:9px;font-size:15px}
.unit-inputs input,.j-fields input{font-family:var(--mono);font-variant-numeric:tabular-nums}.unit-inputs .solid-button{gap:9px;padding-inline:14px}
.unit-error,.j-converter [data-j-error]{min-height:23px;margin-top:7px;color:#9f3045;font-size:13px}
.unit-results,.j-result{position:relative;min-width:0;overflow:hidden;color:#fff;background:linear-gradient(rgba(111,210,223,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(111,210,223,.06) 1px,transparent 1px),linear-gradient(145deg,#0e1927,#17283b);background-size:18px 18px,18px 18px,auto;border:1px solid #2c435a;border-radius:10px;box-shadow:inset 0 1px rgba(255,255,255,.08),0 10px 26px rgba(4,14,26,.12)}
.unit-results{min-height:116px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:baseline;padding:15px 17px}
.unit-results>span:first-child{grid-column:1/-1;margin-bottom:3px;color:#b9c7d5;font:12px var(--mono)}
.unit-results>div{grid-column:1/-1;min-width:0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:baseline;padding:4px 0}
.unit-results output{min-width:0;overflow-wrap:anywhere;color:#f7fbff;font:560 clamp(28px,3vw,42px)/1.24 var(--mono);letter-spacing:-1px;font-variant-numeric:tabular-nums}
.unit-results>div span,.unit-results>span:last-of-type{color:#7fdee7;font:13px var(--mono);white-space:nowrap}
.unit-results #unit-extra{grid-column:1/-1;margin-top:7px;overflow-wrap:anywhere;color:#b6c5d4;font:12px var(--mono)}
.unit-note{margin-top:10px;color:var(--muted);font-size:12px;line-height:1.7}
.j-result{margin-top:10px;padding:17px}.j-result>div{display:grid;grid-template-columns:78px minmax(0,1fr);gap:18px;align-items:baseline;padding:7px 0}
.j-result dt{color:#7fdee7;font:13px var(--mono)}.j-result dd{margin:0;overflow-wrap:anywhere;font:550 24px/1.5 var(--mono)}
.tool-page-workspace{margin-bottom:36px}

/* Listings, cards and taxonomy */
.latest-section{padding:54px 0 66px}.latest-tools{display:flex;align-items:center;gap:18px;color:var(--muted);font:12px var(--mono)}
.reset-filter{min-height:40px;padding:0;color:var(--blue);background:transparent;border:0;font-size:13px}
.latest-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.latest-grid>.card,.related-grid>.card{min-width:0;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.latest-grid .card-cover,.related-grid .card-cover{border:0;border-bottom:1px solid var(--line);border-radius:0;box-shadow:none}
.latest-grid .card-content,.related-grid .card-content{padding:17px 18px 18px}
.card-content .card-meta{margin-top:13px;padding-top:11px;border-top:1px solid var(--line)}
.empty-topic,.j-empty{padding:38px 0;color:var(--muted)}.empty-topic button{margin-left:10px}
.list-page,.topic-index,.tool-index{padding-bottom:64px}
.list-header{position:relative;max-width:900px;margin:26px 0 30px;padding:27px 30px;background:linear-gradient(120deg,#fff,#f0f4f9);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:var(--radius)}
.list-header h1{margin-bottom:15px;font:700 40px/1.3 var(--display);letter-spacing:-.8px}
.list-header .j-prose{color:var(--muted);font-size:15px;line-height:1.82}.list-header .j-prose p{margin-bottom:12px}
.list-count,.directory-count{margin-top:15px;color:var(--muted);font:12px var(--mono)}
.topic-grid,.topic-index-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.topic-card,.topic-index-card{position:relative;min-width:0;padding:22px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:var(--radius);box-shadow:var(--shadow-paper);transition:border-color 160ms ease,transform 160ms ease}
.topic-card:nth-child(3n+2){border-top-color:var(--cyan)}.topic-card:nth-child(3n){border-top-color:var(--violet)}
.topic-card.is-pending{border-top-color:var(--line-strong);box-shadow:none}
.topic-code{display:block;margin-bottom:12px;color:var(--cyan);font:550 12px var(--mono)}
.topic-card h2,.topic-index-card h2{font:650 22px/1.45 var(--display)}
.topic-card p,.topic-index-card p{margin-top:11px;color:var(--muted);font-size:14px;line-height:1.75}
.topic-card small,.topic-index-card small{min-height:40px;display:flex;align-items:flex-end;margin-top:13px;color:var(--blue);font:12px var(--mono)}
.topic-card.is-pending small{color:var(--muted)}.topic-card{scroll-margin-top:96px}.topic-card:target{outline:3px solid var(--blue);outline-offset:3px}
.pagination{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:40px;padding-top:22px;border-top:1px solid var(--line);font:13px var(--mono)}
.pagination-pages{display:flex;flex-wrap:wrap;gap:8px}
.pagination a,.pagination-pages>span{min-width:40px;min-height:40px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:9px}
.pagination [aria-current]{color:#fff;background:var(--blue);border-color:var(--blue)}
.tool-index .card{border-left:3px solid var(--cyan)}.tool-index .card-cover{display:none}.tool-index .card-content{padding:24px}

/* Article shell and prose components */
.breadcrumb{min-height:40px;display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:18px;color:var(--muted);font:12px var(--mono)}
.article-header{max-width:960px;margin-inline:auto;padding:31px 0 27px}
.article-header h1{font:700 clamp(32px,3vw,44px)/1.32 var(--display);letter-spacing:-.9px;text-wrap:balance}
.article-akas{margin-top:12px;color:var(--muted);font-size:14px;line-height:1.72}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;margin:17px 0 0;padding:14px 0 0;color:var(--muted);border-top:1px solid var(--line);font:12px var(--mono)}
.article-meta>div{display:flex;align-items:baseline;gap:7px}.article-meta>div:first-child{flex-basis:100%}.article-meta dt{color:var(--muted)}.article-meta dd{margin:0;color:var(--ink)}.article-meta>div:first-child dd{color:var(--blue)}
.article-cover{position:relative;max-width:1120px;margin:0 auto 36px;overflow:hidden;background:var(--night);border:1px solid #2b4259;border-radius:var(--radius);box-shadow:var(--shadow-cover),inset 0 1px rgba(255,255,255,.08)}
.article-cover img{width:100%;height:clamp(320px,29vw,430px);object-fit:cover}
.article-cover figcaption{position:relative;z-index:2;padding:11px 14px;color:#b8c5d3;background:#111e2d;border-top:1px solid #2b4259;font-size:12px;line-height:1.65}
.article-layout{max-width:1080px;display:grid;grid-template-columns:228px minmax(0,740px);justify-content:center;gap:54px;align-items:start;margin-inline:auto}
.article-layout>.article-body:only-child{grid-column:1/-1;width:min(100%,740px);margin-inline:auto}
.article-toc{position:sticky;top:24px;overflow:hidden;padding:15px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-paper)}
.article-toc details,.article-toc summary{display:block}.article-toc summary{min-height:40px;display:flex;align-items:center;color:var(--ink);font:650 12px var(--mono);cursor:default;list-style:none}.article-toc summary::-webkit-details-marker{display:none}
.article-toc ol,.article-toc ul{display:flex;flex-direction:column;gap:9px;margin:14px 0 0;padding:0;list-style:none}
.article-toc a{min-height:40px;display:flex;align-items:center;padding:2px 0 2px 10px;color:var(--muted);border-left:1px solid var(--line);font-size:12px;line-height:1.58}
.article-toc a[aria-current=true]{color:var(--blue);border-left-color:var(--blue)}.article-toc .toc-number{display:none}
.article-body{min-width:0;max-width:740px;font-size:18px;line-height:1.9}
.article-body .j-short{margin:0 0 34px;padding:21px 23px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--violet);border-radius:10px;box-shadow:var(--shadow-paper);font-size:18px;line-height:1.82}
.j-short>strong,.j-short>span{display:block;margin-bottom:7px;color:var(--violet);font:650 12px var(--mono)}
.j-prose p{margin:0 0 24px}.j-prose h2,.j-faq h2{margin:43px 0 18px;font:680 27px/1.5 var(--display);letter-spacing:-.42px;scroll-margin-top:28px}.j-prose h3{font:650 20px/1.65 var(--display)}
.j-prose a,.j-faq a{color:var(--blue);text-decoration:underline;text-decoration-color:#9eb4e9;text-underline-offset:4px}
.j-prose ol,.j-prose ul{margin:22px 0;padding-left:1.5em}.j-prose li{margin:9px 0;padding-left:.25em}
.j-source{margin:22px 0;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:13px;line-height:1.75}
.j-source>span{margin-right:8px;color:var(--cyan);font:650 12px var(--mono)}.j-source small{display:block;margin-top:3px;color:var(--muted);font:12px var(--mono)}
.j-shot,.concept-figure{margin:30px 0;padding:11px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.j-shot img{width:auto;max-height:710px;margin:auto;object-fit:contain;border:1px solid var(--line);border-radius:8px;cursor:zoom-in}.concept-figure{overflow-x:auto}.concept-figure>img{width:100%;min-width:308px;border:1px solid var(--line);border-radius:8px}
.j-shot figcaption,.concept-figure figcaption{margin-top:9px;color:var(--muted);font-size:12px;line-height:1.72}
.shot-open{width:100%;min-height:44px;display:block;padding:0;background:transparent;border:0;cursor:zoom-in}.shot-open img{max-width:100%;margin-inline:auto}
.j-vs{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;margin:28px 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.j-vs>section{padding:21px;font-size:17px;line-height:1.82}.j-vs>section+section{background:#edf2f7;border-left:1px solid var(--line)}.j-vs h3{margin-bottom:9px;color:var(--blue);font-size:18px}.j-vs p{margin:0}
.j-prose .example,.j-prose .note,.j-prose .warn{margin:27px 0;padding:21px 23px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--cyan);border-radius:10px;box-shadow:var(--shadow-paper)}
.j-prose .warn{border-left-color:var(--violet)}.j-example-title{display:block;margin-bottom:9px;color:var(--cyan);font:650 12px var(--mono)}
.j-prose .key{margin:28px 0;padding:4px 0 4px 20px;border-left:3px solid var(--blue)}.j-prose>p:last-child{margin-bottom:0}
.j-table-wrap{max-width:100%;overflow-x:auto;margin:26px 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:inset -16px 0 20px -24px rgba(17,34,52,.8),var(--shadow-paper)}
.j-table-wrap table{width:100%;min-width:100%;border-collapse:collapse;font-size:13px;line-height:1.7}.j-table-wrap table:has(th:nth-child(4)){min-width:680px}
.j-table-wrap th{padding:13px 14px;background:var(--ice);font-weight:650;text-align:left}.j-table-wrap td{padding:12px 14px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums;vertical-align:top}
.j-table-wrap tr:nth-child(2n) td{background:#f8fafc}.j-table-wrap .j-al-center{text-align:center}.j-table-wrap .j-al-right{text-align:right}
.j-faq{margin-top:44px;padding-top:8px;border-top:1px solid var(--line)}.j-faq h2{margin-top:16px}.j-faq details{padding:16px 0;border-bottom:1px solid var(--line)}
.j-faq summary{position:relative;min-height:40px;padding-right:34px;font-size:17px;font-weight:650;line-height:1.75;cursor:pointer;list-style:none}.j-faq summary::-webkit-details-marker{display:none}
.j-faq summary:after{content:"+";position:absolute;top:0;right:3px;color:var(--blue);font:21px var(--mono)}.j-faq details[open] summary:after{content:"−"}
.j-faq p{margin:11px 0 3px;color:var(--muted);font-size:17px;line-height:1.85}
.j-topics,.topic-pills{display:flex;flex-wrap:wrap;gap:8px 10px;margin-top:26px;padding-top:17px;border-top:1px solid var(--line);font-size:13px}
.j-topics a,.j-topics span,.topic-pills a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;color:var(--blue);background:#fff;border:1px solid var(--line);border-radius:999px}
.related-section{margin-top:62px;padding-top:36px;border-top:1px solid var(--line)}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.more-section{margin:36px 0 64px;padding-top:24px;border-top:1px solid var(--line)}.more-section h2{margin-bottom:12px;font:650 22px var(--display)}.more-list{margin:0;padding:0;list-style:none}.more-list li{border-bottom:1px solid var(--line)}
.more-list a{width:100%;min-height:46px;display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:11px 0;font-size:15px}.more-list span{color:var(--muted);font:12px var(--mono);white-space:nowrap}
.simple-layout{display:block;max-width:820px;margin:0 auto 62px}.simple-layout .article-body{max-width:none}

/* Search, dialogs and utility pages */
.search-dialog{width:min(640px,calc(100% - 32px));max-height:80vh;padding:24px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 24px 70px rgba(12,22,35,.28)}
.search-dialog::backdrop{background:rgba(8,17,28,.72)}.search-dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.search-dialog-head h2{font:650 22px var(--display)}
.search-dialog-head button{width:44px;height:44px;padding:0;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:23px;line-height:1}
.search-form{display:flex;gap:9px}.search-form input{min-width:0;min-height:44px;flex:1;padding:10px 12px;background:#fff;border:1px solid var(--line-strong);border-radius:9px;font-size:16px}
.search-form button{min-height:44px;padding:0 17px;color:#fff;background:var(--blue);border:0;border-radius:9px;font-size:14px}
.search-count{margin:15px 0 9px;color:var(--muted);font:12px var(--mono)}.search-results{max-height:50vh;overflow:auto}
.search-result,.j-search-result{min-height:86px;display:grid;grid-template-columns:84px minmax(0,1fr);gap:14px;align-items:center;padding:13px 0;border-top:1px solid var(--line)}
.search-result img,.j-search-result>img{width:84px;height:63px;object-fit:cover;border-radius:8px}.search-result h3,.j-search-result strong{font:600 16px/1.5 var(--display)}
.search-result span,.j-search-result>span>span{display:block;margin-top:4px;color:var(--muted);font-size:13px;line-height:1.65}.j-search-result>span{min-width:0}.j-search-result small{display:block;margin-top:4px;color:var(--cyan);font:12px/1.6 var(--mono)}
.search-result p{margin-top:5px;color:var(--muted);font-size:14px}.search-page .search-form{max-width:840px}.search-page .search-results{max-height:none}.search-page ul.search-results,.j-search-results{margin:0;padding:0;list-style:none}
.shot-dialog{width:min(1000px,calc(100% - 28px));max-height:92vh;padding:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.shot-dialog::backdrop{background:rgba(8,17,28,.84)}.shot-dialog img{max-height:82vh;margin:auto;object-fit:contain}
.shot-dialog button{min-height:40px;display:block;margin:0 0 10px auto;padding:6px 11px;background:var(--ice);border:1px solid var(--line);border-radius:9px;font-size:13px}
.directory-page,.utility-page,.search-page,.service-page,.not-found-page{padding-bottom:64px}
.directory-header,.page-heading{max-width:860px;padding:32px 0 29px}.directory-header h1,.page-heading h1,.service-page h1,.not-found-page h1{font:700 40px/1.3 var(--display);letter-spacing:-.8px}
.directory-header .j-prose,.page-heading .j-prose{margin-top:18px;color:var(--muted);font-size:16px;line-height:1.82}.directory-header .j-prose p,.page-heading .j-prose p{margin-bottom:14px}
.j-tool,.j-service{max-width:880px;margin-inline:auto}.j-tool>p{margin:18px 0}.j-service .j-prose{margin-top:24px}.group-description,.start-note{margin:0 0 22px;color:var(--muted);font-size:14px;line-height:1.8}
.tool-card{padding:28px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:var(--radius);box-shadow:var(--shadow-paper)}.tool-card h2{font:650 25px var(--display)}.tool-card p{margin:14px 0;color:var(--muted)}
.error-page{max-width:840px;margin:46px auto 86px;padding:38px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--violet);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.error-page h1{margin:11px 0 18px;font:700 40px var(--display)}.error-page p{margin-top:18px}

/* Retained mini-story and rail components */
.lead-side{min-width:0;display:flex;flex-direction:column;padding:15px 18px 12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-paper)}
.side-heading{display:flex;justify-content:space-between;padding-bottom:10px;color:var(--muted);border-bottom:1px solid var(--line);font:12px var(--mono)}
.mini-story{flex:1 1 0;display:flex;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.mini-story .card-link{width:100%;display:grid;grid-template-columns:108px minmax(0,1fr);gap:14px;align-items:center}
.mini-story .card-cover{aspect-ratio:3/2;box-shadow:0 8px 18px rgba(6,17,31,.12)}
.mini-content{min-width:0}.mini-content .card-title{display:-webkit-box;margin:4px 0 7px;overflow:hidden;font-size:16px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.mini-meta{color:var(--muted);font:12px/1.5 var(--mono)}.mini-meta>span{margin:0 5px;color:var(--line-strong)}
.side-index{display:flex;justify-content:space-between;padding-top:11px;color:var(--muted);font-size:13px}.side-index span{color:var(--blue);font:12px var(--mono)}
.column-sections{border-top:1px solid var(--line)}.column-section{padding:46px 0 35px;border-bottom:1px solid var(--line)}.column-section .section-heading{align-items:baseline}.column-title{display:flex;align-items:baseline;gap:12px}
.column-number{width:30px;height:30px;display:grid;place-items:center;color:#fff;background:var(--blue);border-radius:8px;font:500 12px/1 var(--mono)}
.column-section:nth-child(2n) .column-number{background:var(--cyan)}.column-section:nth-child(3n) .column-number{background:var(--violet)}
.rail-controls{display:flex;align-items:baseline;gap:7px}.rail-count{margin-right:10px;color:var(--muted);font:12px var(--mono)}
.rail-controls button{width:40px;height:40px;padding:0;color:var(--blue);background:#fff;border:1px solid var(--line);border-radius:9px;font:17px var(--mono)}
.card-rail{display:flex;gap:22px;overflow-x:auto;padding:1px 1px 17px;overscroll-behavior-inline:contain;scroll-behavior:smooth;scroll-snap-type:x mandatory;scrollbar-color:var(--line-strong) transparent;scrollbar-width:thin}
.card-rail .card{min-width:0;flex:0 0 calc((100% - 66px)/4);scroll-snap-align:start}
.reading-path{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;margin:0;padding:0;list-style:none}
.path-step{display:flex;justify-content:space-between;margin-bottom:9px;color:var(--muted);font:500 12px var(--mono)}.path-step span:first-child{color:var(--blue)}.reading-path .card-title{margin-top:12px;font-size:16px;line-height:1.55}
.start-section{padding:52px 0 58px}.section-subtitle{color:var(--muted);font-size:14px}

/* Dark close */
.site-footer{padding-top:42px;color:var(--night-text);background:var(--night);border-top:1px solid #263b50}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr 1fr;gap:72px;padding-bottom:34px}
.footer-wordmark{min-height:40px;display:inline-flex;flex-direction:column;justify-content:center;font:650 28px/1.2 var(--display);letter-spacing:-.7px}
.footer-wordmark span{display:block;margin-top:6px;color:var(--night-muted);font:13px/1.5 var(--body);letter-spacing:.5px}
.footer-about p{max-width:42ch;margin-top:16px;color:var(--night-muted);font-size:13px;line-height:1.82}
.footer-grid h3{margin:2px 0 11px;color:#d9e5f0;font-size:13px;font-weight:650}
.footer-grid>div>a:not(.footer-wordmark){min-width:40px;min-height:40px;width:max-content;display:flex;align-items:center;color:var(--night-muted);font-size:13px}
.footer-bottom{min-height:58px;display:flex;align-items:center;justify-content:space-between;color:var(--night-muted);border-top:1px solid var(--night-line);font:12px var(--mono)}
.footer-bottom a{min-height:40px;display:inline-flex;align-items:center}

@media (hover:hover) and (pointer:fine){
  .main-nav a:hover:after,.main-nav button:hover:after{transform:scaleX(1)}
  .search-trigger:hover{background:#fff;border-color:var(--blue)}
  .topic-strip a:hover,.breadcrumb a:hover{color:var(--blue)}
  .footer-grid a:hover{color:#8fdde5}
  .topic-next:hover,.rail-controls button:hover:not(:disabled){color:#fff;background:var(--blue);border-color:var(--blue)}
  .card-link:hover .card-cover{transform:translateY(-2px);border-color:#4a6e8e;box-shadow:0 20px 46px rgba(4,13,25,.23),inset 0 1px rgba(255,255,255,.12)}
  .card-link:hover .card-cover img{transform:scale(1.015)}
  .card-link:hover .card-title,.home-reading-list a:hover .card-title,.home-topic-links a:hover>span,.home-recent a:hover>span,.more-list a:hover,.search-result:hover h3,.j-search-result:hover strong{color:var(--blue)}
  .home-intro .card-link:hover .card-title,.home-intro .home-reading-list a:hover .card-title{color:#8fdde5}
  .home-topic-heading h3 a:hover{color:var(--group-accent)}.text-link:hover{border-color:currentColor}
  .solid-button:hover{background:var(--blue);border-color:var(--blue);transform:translateY(-1px)}
  .unit-inputs input:hover,.unit-inputs select:hover,.j-fields input:hover,.j-fields select:hover{border-color:var(--blue)}
  .article-toc a:hover{color:var(--blue);border-left-color:var(--blue)}
  .topic-card:hover,.topic-index-card:hover{border-color:var(--blue);transform:translateY(-2px)}
}

@media(max-width:1100px){
  .container{width:calc(100% - 56px)}.masthead-inner{gap:18px}.main-nav{gap:17px;margin-right:0}.search-trigger{width:148px}
  .lead-grid{grid-template-columns:minmax(0,1.3fr) minmax(310px,.95fr);gap:20px}.home-reading-list a{min-height:82px;padding:14px 0}.home-recommendation{padding-block:13px 15px}
  .home-topic-group{grid-template-columns:minmax(180px,.72fr) minmax(210px,.95fr) minmax(280px,1.45fr);gap:20px;padding:19px}.home-topic-heading{padding-right:16px}
  .unit-tool{gap:28px;padding:28px}.unit-inputs,.j-fields{grid-template-columns:minmax(0,1fr) 116px}.unit-inputs button,.j-fields button{grid-column:1/-1;width:108px}
  .article-layout{grid-template-columns:210px minmax(0,720px);gap:38px}.footer-grid{gap:48px}
}
@media(max-width:900px){
  .masthead-inner{min-height:76px}.wordmark{font-size:27px}.brand-mark{width:31px;height:31px}.main-nav{gap:14px}
  .search-trigger{width:44px;justify-content:center;padding:0}.search-trigger span,.search-trigger kbd{display:none}
  .lead-grid{grid-template-columns:minmax(0,1.18fr) minmax(280px,.9fr)}.home-intro .lead-copy .lead-title{font-size:28px}.home-reading-side{padding-inline:16px}
  .home-reading-list a{grid-template-columns:28px minmax(0,1fr);gap:10px}.home-reading-list .home-step{width:28px;height:28px}.home-reading-list .card-title{font-size:15px}
  .home-topic-group{grid-template-columns:minmax(0,.82fr) minmax(0,1.42fr);gap:18px 24px}
  .home-topic-heading{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:20px;padding:4px 0 8px 14px;border-right:0}
  .home-topic-heading p{grid-column:1/-1;grid-row:2}.home-topic-count{grid-column:2;grid-row:1;align-self:center;margin:0}.home-topic-feature .card-cover{max-height:180px}
  .home-recent ul{grid-template-columns:1fr}.latest-grid,.topic-grid,.topic-index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-rail .card{flex-basis:calc((100% - 22px)/2.4)}.reading-path{grid-template-columns:repeat(5,190px);overflow-x:auto;padding-bottom:15px;scroll-snap-type:x mandatory}.reading-path li{scroll-snap-align:start}
  .unit-tool{grid-template-columns:1fr;gap:19px}.tool-copy p{max-width:100%}.unit-inputs,.j-fields{grid-template-columns:minmax(0,1fr) 132px auto}.unit-inputs button,.j-fields button{grid-column:auto;width:auto}
  .article-layout{display:block;max-width:740px}.article-toc{position:relative;top:0;margin-bottom:26px}.article-toc ol,.article-toc ul{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}.article-body{max-width:none}
  .footer-grid{grid-template-columns:1.2fr .8fr 1fr;gap:28px}
}
@media(max-width:640px){
  .container{width:calc(100% - 28px)}.masthead-inner{min-height:66px;gap:10px}.wordmark{gap:8px;font-size:24px}.wordmark small{margin-top:4px;font-size:11px;letter-spacing:.3px}.brand-mark{width:29px;height:29px;padding:6px}
  .search-trigger{margin-left:auto}.mobile-menu{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:0;background:transparent;border:0;border-radius:9px}.mobile-menu span{width:22px;height:1.5px;display:block;background:var(--ink)}
  .main-nav{position:absolute;z-index:30;top:66px;right:0;left:0;display:none;justify-content:space-between;gap:4px;margin:0;padding:10px 14px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-paper)}.main-nav.is-open{display:flex}.main-nav a,.main-nav button{min-width:40px;justify-content:center;font-size:12px}
  .topic-bar-inner{min-height:45px;gap:10px}.topic-label{min-width:40px;justify-content:center;padding-right:10px}.topic-strip{gap:18px}.topic-next{width:40px;height:40px}
  .home-intro{padding:18px 0 29px;background-size:28px 28px,28px 28px,auto}.edition-line{display:block;margin-bottom:13px;font-size:11px}.edition-line>span,.edition-line>.edition-title{display:block}.edition-line>.edition-title{margin-bottom:4px}.edition-line b{margin-inline:4px}
  .membership-lead{margin-bottom:20px}.membership-lead .membership-band,.membership-band{display:flex;flex-wrap:wrap;gap:12px;padding:17px 16px}
  .membership-band>div>p,.membership-lead .membership-band>div>p{font-size:18px}.membership-band strong,.membership-lead .membership-band strong{margin-left:4px;font-size:22px}.membership-band .solid-button{width:100%;justify-content:space-between}.membership-disclosure{width:100%;padding-top:10px;line-height:1.68}
  .home-reading-heading{margin:22px 0 15px}.home-reading-heading h2{font-size:22px}.lead-grid{grid-template-columns:1fr;gap:18px}
  .home-intro .lead-story .card-cover{aspect-ratio:3/2}.lead-copy{padding:17px 17px 18px}.home-intro .lead-copy .lead-title{max-width:none;font-size:27px;line-height:1.32}.lead-copy>p{font-size:13px}
  .home-reading-side{padding-inline:16px}.home-reading-list a{min-height:0;grid-template-columns:32px minmax(0,1fr);gap:12px;padding:14px 0}.home-reading-list .home-step{width:32px;height:32px}.home-reading-list .card-title{font-size:15px}.home-recommendation{padding:15px 0 16px}
  .home-topics{padding-top:32px}.home-directory .section-heading{margin-bottom:15px}.section-heading{gap:12px;margin-bottom:19px}.section-heading h2{font-size:23px}
  .home-topic-group{grid-template-columns:1fr;gap:16px;margin-bottom:12px;padding:17px}.home-topic-heading{display:block;padding:2px 0 7px 12px}.home-topic-heading h3{font-size:20px}.home-topic-heading p{font-size:13px}.home-topic-count{margin-top:10px}
  .home-topic-feature .card-link{display:grid;grid-template-columns:116px minmax(0,1fr);gap:13px;align-items:center}.home-topic-feature .card-cover{max-height:none;aspect-ratio:3/2}.home-topic-feature .card-title{margin:0;font-size:15px;line-height:1.5}
  .home-topic-links li a{padding:9px 0;font-size:14px}.home-topic-links li:first-child a{padding-top:9px}.home-topic-links small{display:none}
  .home-recent{margin-top:23px;padding:24px 0 30px}.home-recent li a{grid-template-columns:74px minmax(0,1fr);gap:11px;padding:11px 0;font-size:14px}.home-recent time{font-size:10px}
  .unit-tool{gap:16px;padding:20px 17px}.tool-copy h2{font-size:24px}.unit-inputs,.j-fields{grid-template-columns:minmax(0,1fr) 104px;gap:9px}.unit-inputs button,.j-fields button{grid-column:1/-1;width:100%}
  .unit-results{min-height:106px;padding:13px 14px}.unit-results output{font-size:28px}.tool-section{padding-bottom:36px}
  .latest-section{padding:36px 0 44px}.latest-grid,.topic-grid,.topic-index-grid{grid-template-columns:1fr;gap:17px}.latest-grid .card-content,.related-grid .card-content{padding:15px 16px 17px}
  .list-page,.topic-index,.tool-index{padding-bottom:38px}.list-header{margin:20px 0 24px;padding:22px 19px}.list-header h1{margin-bottom:12px;font-size:29px}.topic-card,.topic-index-card{padding:19px}
  .pagination{gap:8px;margin-top:30px;font-size:11px}.pagination-pages{gap:5px}
  .breadcrumb{margin-top:13px}.article-header{padding:21px 0 19px}.article-header h1{font-size:28px;line-height:1.4;letter-spacing:-.45px}.article-akas{margin-top:10px;font-size:13px}
  .article-meta{gap:8px 14px;margin-top:14px;padding-top:12px}.article-meta>div:first-child{display:block}.article-meta>div:first-child dt{display:inline;margin-right:7px}.article-meta>div:first-child dd{display:inline}
  .article-cover{margin-bottom:22px}.article-cover img{height:auto;aspect-ratio:3/2}
  .article-toc{margin-bottom:22px;padding:0}.article-toc summary{position:relative;min-height:44px;padding:12px 38px 12px 14px;cursor:pointer}.article-toc summary:after{content:"+";position:absolute;top:9px;right:14px;color:var(--blue);font:19px var(--mono)}.article-toc details[open] summary:after{content:"−"}
  .article-toc ol,.article-toc ul{display:block;margin:0;padding:2px 14px 11px;border-top:1px solid var(--line)}.article-toc li{margin:8px 0}.article-toc a{line-height:1.65}
  .article-body{font-size:17px;line-height:1.88}.article-body .j-short{margin-bottom:27px;padding:18px;font-size:17px}.j-prose p{margin-bottom:22px}.j-prose h2,.j-faq h2{margin:32px 0 16px;font-size:23px;line-height:1.52}
  .j-vs{grid-template-columns:1fr}.j-vs>section{padding:18px;font-size:17px}.j-vs>section+section{border-top:1px solid var(--line);border-left:0}
  .j-prose .example,.j-prose .note,.j-prose .warn{padding:18px}.j-shot,.concept-figure{margin:25px 0;padding:9px}.j-shot img{max-height:none}.j-source{padding:13px}
  .j-table-wrap{margin:22px 0}.j-table-wrap th,.j-table-wrap td{padding:11px}.j-faq{margin-top:32px}.j-faq summary,.j-faq p{font-size:17px}
  .related-section{margin-top:42px;padding-top:26px}.related-grid{grid-template-columns:1fr;gap:18px}.more-section{margin-bottom:38px}.more-list a{font-size:14px;line-height:1.7}.more-list span{display:none}.simple-layout{margin-bottom:38px}
  .search-dialog{padding:18px}.search-form button{padding-inline:12px;font-size:13px}.search-result,.j-search-result{grid-template-columns:64px minmax(0,1fr);gap:10px}.search-result img,.j-search-result>img{width:64px;height:52px}.search-result h3,.j-search-result strong{font-size:14px}.j-search-result>span>span{font-size:12px}
  .directory-page,.utility-page,.search-page,.service-page,.not-found-page{padding-bottom:38px}.directory-header,.page-heading{padding:24px 0}.directory-header h1,.page-heading h1,.service-page h1,.not-found-page h1{font-size:29px}
  .tool-card{padding:21px}.error-page{margin:28px 0 42px;padding:22px}.error-page h1{font-size:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px;padding-bottom:24px}.footer-about{grid-column:1/-1}.footer-about p{max-width:none;margin-top:12px}.footer-wordmark{font-size:26px}
  .footer-bottom{min-height:0;flex-wrap:wrap;gap:8px;padding:13px 0}.footer-bottom>span:nth-child(2){display:none}
}
/* The same focus and touch geometry applies to small editorial links. */
.home-intro,.site-footer{--focus:#9bc4ff}
.membership-band{--focus:var(--blue)}
.breadcrumb a,.membership-disclosure a,.j-prose a,.j-faq a,.j-source a,.error-page a{min-width:40px;min-height:40px;max-width:100%;display:inline-block;vertical-align:baseline;overflow-wrap:anywhere}
.breadcrumb a,.membership-disclosure a{display:inline-flex;align-items:center}
.membership-band .solid-button{min-height:44px;display:inline-flex;color:#fff;text-decoration:none;transition:none}
.membership-band .membership-disclosure{margin:0}
.membership-band .solid-button:hover{transform:none}
/* Focus rings remain inside the deliberately clipped image/card frames. */
.lead-story>.card-link:focus-visible,.latest-grid .card-link:focus-visible,.related-grid .card-link:focus-visible{outline-offset:-4px}
.article-toc summary:focus-visible,.topic-strip a:focus-visible,.j-search-result:focus-visible{outline-offset:-3px}
@media(min-width:601px) and (max-width:640px){
  .article-toc summary:after{content:none}
}

@media(prefers-reduced-motion:reduce){
  html,.topic-strip,.card-rail,.reading-path{scroll-behavior:auto!important}
  *,*:before,*:after{animation:none!important;transition:none!important}
  .card-link:hover .card-cover,.card-link:hover .card-cover img,.solid-button:hover,.topic-card:hover,.topic-index-card:hover{transform:none}
}
@media print{
  :root{--paper:#fff;--ink:#111;--muted:#444;--line:#bbb}
  body{background:#fff;color:#111;font-size:11pt}
  .search-dialog,.shot-dialog{display:none!important}
  .shot-open{display:block!important;border:0}
  .container,.article-header,.article-cover,.article-layout,.article-body{width:100%;max-width:none}
  .article-cover{break-inside:avoid;box-shadow:none}.article-cover img{height:auto}.article-body{font-size:11pt;line-height:1.65}
  .j-prose a,.j-faq a{color:#111;text-decoration:underline}
  .j-shot,.concept-figure,.j-vs,.j-prose .example,.j-prose .note,.j-prose .warn,.j-table-wrap{break-inside:avoid;box-shadow:none}
}
.tutorial-strip{display:grid;grid-template-columns:132px minmax(0,1fr) auto;gap:18px;align-items:center;margin:0 0 26px;padding:12px 18px 12px 12px;color:var(--night-text);background:rgba(255,255,255,.035);border:1px solid var(--night-line);border-radius:12px;transition:border-color .18s,background .18s}.tutorial-strip:hover{background:rgba(255,255,255,.06);border-color:#3f5b78}.tutorial-strip:focus-visible{outline:2px solid #88d8e0;outline-offset:3px}.tutorial-thumb{display:block;aspect-ratio:16/9;overflow:hidden;border-radius:8px;border:1px solid var(--night-line)}.tutorial-thumb img{width:100%;height:100%;object-fit:cover;display:block}.tutorial-copy{display:grid;gap:3px;min-width:0}.tutorial-kicker{color:#88d8e0;font:600 11px/1.5 var(--mono);letter-spacing:.9px}.tutorial-copy strong{font-size:17px;font-weight:650;line-height:1.5}.tutorial-note{color:var(--night-muted);font-size:13px;line-height:1.7}.tutorial-go{color:#88d8e0;font:18px var(--mono);padding:0 4px}
@media(max-width:600px){.tutorial-strip{grid-template-columns:96px minmax(0,1fr);gap:13px;margin-bottom:20px;padding:10px 12px 10px 10px}.tutorial-copy strong{font-size:15px}.tutorial-note{display:none}.tutorial-go{display:none}}
.j-prose pre{margin:22px 0;padding:16px 18px;overflow-x:auto;color:#e8eef6;background:#101c2c;border:1px solid #23364c;border-radius:10px;font:13.5px/1.75 var(--mono);-webkit-overflow-scrolling:touch}.j-prose pre code{padding:0;background:none;border:0;color:inherit;font:inherit}
.j-prose code,.j-faq code,.j-short code{overflow-wrap:anywhere;word-break:break-word}