/* OnTrick Maths / hand-built editorial interface, zero external dependencies */
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/* Archive, directory and search */
.archive-page,.directory-page,.search-page{padding-top:75px;padding-bottom:115px;min-height:65vh}.archive-top{border-bottom:1px solid var(--line);padding-bottom:43px}.archive-top h1{font-size:clamp(53px,6.5vw,80px);max-width:875px;margin:15px 0 23px}.archive-top>p,.directory-intro p{color:#68776b;font:19px/1.7 var(--serif);max-width:710px}.archive-controls{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:26px 0}.archive-filters{display:flex;gap:9px;flex-wrap:wrap}.filter-btn{background:transparent;border:1px solid var(--line);padding:9px 14px;color:var(--ink);font-size:11px;font-weight:800}.filter-btn.selected{background:var(--ink);color:white;border-color:var(--ink)}#archive-count{font-size:11px;color:var(--muted)}.archive-list .post-entry{row-gap:8px;grid-template-columns:200px minmax(0,1fr) 30px}.archive-list .post-entry-title{font-size:27px}.archive-list .post-entry-summary{display:block;grid-column:2;font-size:12px;line-height:1.6;color:var(--muted)}.archive-list .post-entry-arrow{grid-column:3;grid-row:1/4}.filter-item[hidden]{display:none}.directory-intro{padding-bottom:43px}.directory-intro h1{font-size:clamp(57px,7vw,90px);margin:12px 0}.dir-period{color:var(--rust)}.directory-list{border-top:1px solid var(--ink)}.directory-row{display:grid;grid-template-columns:95px minmax(0,1fr) 27px;gap:30px;align-items:center;padding:30px 0;border-bottom:1px solid var(--line)}.dir-counter{font:italic 31px var(--serif);color:var(--rust)}.directory-row b{display:block;font:clamp(22px,2.7vw,35px)/1.2 var(--serif);letter-spacing:-.025em}.directory-row small{display:block;font-size:12px;line-height:1.65;margin-top:8px;max-width:690px;color:var(--muted)}.dir-arrow{font-size:22px;color:var(--rust)}.dir-end{display:flex;justify-content:space-between;margin-top:30px;font-size:10px;font-weight:800;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
/* Full-length teaching articles */
.article-page{padding-top:40px;padding-bottom:110px}.breadcrumb,.breadcrumbs{display:flex;flex-wrap:wrap;gap:11px;color:#718174;font-size:11px;margin-bottom:41px}.breadcrumb span{color:#c4cbbc}.article-layout{display:grid;grid-template-columns:minmax(0,780px) minmax(0,300px);gap:72px;align-items:start}.article-header{border-bottom:1px solid var(--line);padding-bottom:25px;margin-bottom:33px}.article-category{font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:800;color:var(--rust)}.article-header h1{font-size:clamp(42px,5.1vw,70px);margin:20px 0 28px}.article-byline{display:flex;flex-wrap:wrap;gap:13px;color:#778477;font-size:11px;font-weight:700}.byline-sep{color:#bbc3b9}.reading-content p,.article-end p{font:17px/1.85 var(--serif);color:#40584d;margin-bottom:23px}.reading-content h2,.legacy-post h2{font:38px/1.23 var(--serif);letter-spacing:-.036em;margin:45px 0 16px}.reading-content h3,.legacy-post h3{font:27px/1.25 var(--serif);margin:29px 0 14px}.reading-content a:not(.mini-link){color:#9e5338;text-decoration:underline;text-underline-offset:3px}.reading-content ul,.reading-content ol,.imported-page ul,.imported-page ol{padding-left:22px;margin:0 0 27px}.reading-content li,.imported-page li{font:16px/1.8 var(--serif);padding-left:3px;margin-bottom:8px}.reading-content code,.imported-page code{font:90% 'Courier New',monospace;background:#e6e9e0;padding:2px 5px;color:#315346;overflow-wrap:anywhere}.reading-content .equation,.imported-page .equation{padding:23px 27px;background:#e5ebe2;border-left:3px solid var(--green);font:24px/1.6 var(--serif);color:var(--green);margin:28px 0;overflow-wrap:anywhere}.reading-content .worked,.imported-page .worked{background:var(--white);border:1px solid var(--line);padding:25px 29px;margin:27px 0}.reading-content .tip,.imported-page .tip{background:#e5ebe2;border-left:3px solid #7c9a79;padding:23px 26px;margin:25px 0;font:16px/1.8 var(--serif)}.reading-content .warning,.imported-page .warning{background:#f2e3d8;border-left:3px solid var(--rust);padding:23px 27px;margin:25px 0}.reading-content .answer,.imported-page .answer{color:var(--green);font-weight:bold}.reading-content details,.imported-page details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0;margin:18px 0}.reading-content summary,.imported-page summary{font:800 13px var(--sans);color:var(--green);cursor:pointer}.article-rail{position:sticky;top:26px}.rail-card{background:#e5e9de;padding:26px}.rail-card p{font:18px/1.65 var(--serif);margin:13px 0;color:#536b5e}.rail-doodle{font:italic 45px var(--serif);color:var(--rust);display:block;text-align:right}.rail-nav{margin-top:33px}.rail-nav .eyebrow{display:block;margin-bottom:12px}.rail-nav .mini-link{font-size:16px;padding:14px 0}.article-end{margin-top:51px;border-top:1px solid var(--ink);padding-top:21px}.article-end>span{font-size:10px;font-weight:800;letter-spacing:.13em;color:var(--rust)}.article-end p{font-size:16px}.article-back{font-size:12px;font-weight:800}.related-posts{margin-top:82px}.related-posts .section-heading{margin-top:34px}.related-posts .section-heading h2{font-size:40px}.related-posts .post-entry{grid-template-columns:180px minmax(0,1fr) 25px}
/* Full source WordPress page content is preserved; typography is not. */
.content-page,.standard-page{padding-top:55px;padding-bottom:115px;min-height:60vh}.standard-page{max-width:1100px}.standard-note{margin-bottom:15px}.imported-page .wrap{width:100%;margin:auto}.imported-page .article-wrap,.imported-page .content-shell{display:grid;grid-template-columns:minmax(0,770px) minmax(180px,260px);gap:64px;align-items:start}.imported-page h1{font:clamp(43px,5.4vw,70px)/1.15 var(--serif);letter-spacing:-.05em;max-width:850px;margin:12px 0 24px}.imported-page .eyebrow{margin-bottom:12px}.imported-page .lead{font:22px/1.6 var(--serif);color:#657466;max-width:770px;margin:12px 0 29px}.imported-page p{font:16px/1.85 var(--serif);color:#41564b}.imported-page .article p{font-size:17px}.imported-page .article a{color:#9a523b}.imported-page h2{font:clamp(28px,3vw,39px)/1.23 var(--serif);letter-spacing:-.025em;margin:45px 0 17px}.imported-page h3{font:25px/1.25 var(--serif);margin:27px 0 12px}.imported-page .toc,.imported-page aside{border-top:3px solid var(--green);padding-top:17px;position:sticky;top:28px}.imported-page aside h3{font:800 11px var(--sans);letter-spacing:.13em;text-transform:uppercase;margin:0 0 14px}.imported-page aside a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:12px;color:#52685c}.imported-page .breadcrumbs{margin-bottom:23px}.imported-page .article-meta{font-size:11px;color:var(--muted);display:flex;gap:12px;margin-bottom:25px}.imported-page .article-list{border-top:1px solid var(--ink);margin:24px 0 35px}.imported-page .article-row{padding:23px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:25px}.imported-page .article-row h3{font:25px var(--serif);margin:0 0 8px}.imported-page .article-row p{font:13px/1.7 var(--sans);color:var(--muted);margin:0}.imported-page .tag{border:1px solid var(--line);padding:6px 9px;color:var(--green);font:800 10px var(--sans);white-space:nowrap}.imported-page .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.imported-page .card{padding:22px;background:#ecebdf}.imported-page .card h3{font:22px var(--serif);margin-bottom:8px}.imported-page .card p{font:12px/1.8 var(--sans)}.imported-page hr{border:0;border-top:1px solid var(--line);margin:30px 0}.imported-page .tool{max-width:880px}.imported-page .tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px;margin:30px 0 19px}.imported-page .field label{display:block;font:800 12px var(--sans);margin-bottom:9px}.imported-page .field input,.imported-page .field select{border-radius:0;width:100%;min-height:51px;background:#fffefa;border:1px solid #c5d1c5;padding:10px 12px;outline-offset:2px;color:var(--ink)}.imported-page .tool>button{background:var(--green);border:0;color:white;font-size:12px;font-weight:800;min-height:49px;padding:13px 24px}.imported-page .tool>button:hover{background:var(--rust)}.imported-page .result{background:#e6ece1;border-left:3px solid var(--green);padding:21px 25px;min-height:65px;font:18px/1.7 var(--serif);white-space:pre-line;margin:18px 0 33px}.imported-page .result.error{background:#f7e5d8;border-color:var(--rust);color:#944f36}.imported-page .article{min-width:0}
/* Native search modal */
dialog{background:var(--paper);color:var(--ink);border:0;padding:0;width:100%;max-width:min(690px,calc(100vw - 32px));box-shadow:0 26px 100px #10271f7a}dialog::backdrop{background:#17332bad;backdrop-filter:blur(3px)}.search-dialog-inner{padding:32px 34px}.search-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:19px}.close-search{height:34px;width:34px;border:1px solid var(--line);background:transparent;font-size:24px;color:var(--ink)}.search-dialog-inner label{font:31px var(--serif);display:block;margin-bottom:22px}.search-field{display:flex;align-items:center;gap:14px;border-bottom:2px solid var(--green);padding-bottom:12px}.search-field input{border:0;background:transparent;outline:0;flex:1;min-width:0}.search-all{display:inline-block;font-size:12px;font-weight:800;margin-top:20px;color:var(--rust)}#quick-results{max-height:340px;overflow:auto;margin-top:17px}.quick-result{border-bottom:1px solid var(--line);display:flex;gap:4px;flex-direction:column;padding:11px 0}.quick-result span{color:var(--muted);font-size:10px}.quick-result strong{font:18px var(--serif)}.search-page label{font-size:12px;font-weight:800;display:block;margin-bottom:10px}.search-page-input-wrap{display:flex;max-width:760px;border:1px solid #c3c9be;background:white}.search-page-input-wrap input{border:0;outline:0;min-width:0;flex:1;padding:16px 20px}.search-page-input-wrap button{border:0;background:var(--ink);color:white;font-size:12px;font-weight:800;padding:0 22px}.results-count{font-size:12px;color:var(--muted);margin:25px 0}.search-page-results{max-width:950px;border-top:1px solid var(--line)}.search-page-results .post-entry-summary{display:block;grid-column:2;color:var(--muted);font-size:12px}
@media(max-width:1050px){.container{width:calc(100% - 60px)}.desktop-nav{gap:15px}.nav-link{font-size:11px}.hero-left{padding-left:39px}.hero h1{font-size:clamp(48px,5.3vw,65px)}.notebook{height:400px;padding:20px}.feature-grid{gap:30px}.article-layout{gap:35px}.imported-page .article-wrap,.imported-page .content-shell{gap:30px}.tools-section{gap:35px;padding:48px 40px}}@media(max-width:900px){.desktop-nav{display:none}.menu-trigger{display:grid!important}.mobile-nav:not([hidden]){display:flex;flex-direction:column;gap:0;background:var(--paper);padding:8px 35px 25px;box-shadow:0 12px 30px #172b2530}.mobile-nav .nav-link{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}.mobile-nav .nav-link.active:after{display:none}.header-actions{margin-left:auto}.hero{grid-template-columns:1.07fr .93fr}.hero-left{padding:54px 27px}.hero h1{font-size:clamp(42px,5.8vw,63px)}.hero-foot{margin-top:33px}.notebook{height:355px}.topic-tile{min-height:360px;padding:23px}.topic-tile h3{font-size:31px}.article-layout{grid-template-columns:minmax(0,1fr) 220px}.imported-page .article-wrap,.imported-page .content-shell{grid-template-columns:minmax(0,1fr) 200px}.footer-links{gap:35px}.post-entry{grid-template-columns:135px 1fr 27px;gap:17px}}@media(max-width:700px){.container{width:calc(100% - 34px)}.topbar{justify-content:center}.topbar>span:last-child{display:none}.header-inner{height:73px}.brand-mark{height:35px;width:35px;font-size:28px}.brand-text{font-size:25px}.brand-text small{font-size:7px}.home-main{padding-top:17px}.hero{grid-template-columns:1fr}.hero-left{padding:43px 24px 39px}.hero h1{font-size:clamp(48px,11vw,71px);margin:22px 0}.hero-art{height:380px}.notebook{max-width:395px;height:315px;margin:0 auto;padding:16px}.notebook-graph{height:207px;margin:10px 0 0}.hero-stamp{height:74px;width:74px;font-size:14px;top:8%}.art-note{font-size:17px;bottom:3%}.section-spacing{margin-top:75px}.intro-strip{margin-top:0;padding:25px 0;min-height:auto;align-items:start}.intro-strip p{font-size:19px}.strip-star{display:none}.section-heading{display:block;margin-bottom:27px}.section-heading h2{font-size:clamp(40px,8.7vw,53px)}.section-heading p{margin-top:18px;max-width:520px}.topic-grid,.feature-grid{grid-template-columns:1fr;gap:10px}.topic-tile{min-height:302px}.topic-tile-copy{margin-top:14px}.topic-tile h3{font-size:35px}.topic-tile p{max-width:420px}.topic-symbol{width:61px;height:61px;font-size:40px}.split-section,.reading-section{padding-top:41px}.feature-article{padding:23px}.feature-article h3{font-size:31px}.feature-side{padding:20px 0 0}.mini-link{font-size:19px;padding:17px 0}.post-entry,.archive-list .post-entry,.related-posts .post-entry,.search-page-results .post-entry{grid-template-columns:1fr 25px;gap:6px 12px;padding:23px 0}.post-meta-label{grid-column:1;grid-row:1}.post-entry-title,.archive-list .post-entry-title{grid-column:1;grid-row:2;font-size:24px}.post-entry-arrow,.archive-list .post-entry-arrow{grid-column:2;grid-row:1/3}.archive-list .post-entry-summary,.search-page-results .post-entry-summary{grid-column:1;grid-row:3}.tools-section{display:block;padding:41px 25px}.tools-lead h2{font-size:47px}.tools-scribble{display:none}.tools-list{margin-top:33px}.last-word{margin-top:79px;padding-bottom:65px}.last-word blockquote{font-size:37px}.site-footer{padding-top:50px}.footer-top,.footer-bottom{display:block}.footer-top{padding-bottom:45px}.footer-links{justify-content:space-between;max-width:430px;margin-top:36px}.footer-bottom>div{justify-content:start;margin-top:13px}.archive-page,.directory-page,.search-page{padding:51px 0 75px}.archive-top h1{font-size:clamp(47px,9.6vw,69px)}.archive-controls{display:block}.archive-filters{margin-bottom:14px}.directory-intro h1{font-size:55px}.directory-row{grid-template-columns:43px 1fr 24px;gap:15px;padding:24px 0}.dir-counter{font-size:23px}.directory-row b{font-size:25px}.article-page{padding:23px 0 78px}.breadcrumb,.breadcrumbs{margin-bottom:26px}.article-layout{display:block}.article-rail{display:none}.article-header h1{font-size:clamp(42px,9vw,62px)}.reading-content h2{font-size:31px}.reading-content p{font-size:16px}.reading-content .equation{font-size:20px}.related-posts .section-heading h2{font-size:33px}.content-page,.standard-page{padding:37px 0 77px}.imported-page .article-wrap,.imported-page .content-shell{display:block}.imported-page aside{display:none}.imported-page h1{font-size:43px}.imported-page .lead{font-size:19px}.imported-page .grid,.imported-page .tool-grid{grid-template-columns:1fr}.imported-page .article-row h3{font-size:21px}.imported-page .article-row{align-items:flex-start}.imported-page .tag{font-size:9px}.imported-page .equation{font-size:19px;padding:17px}.imported-page .worked{padding:19px}.search-dialog-inner{padding:22px 20px}.search-dialog-inner label{font-size:26px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{.topline,.site-header,.site-footer,.article-rail,.related-posts,dialog{display:none!important}body{background:white;color:black}.container{width:100%}.article-layout{display:block}}