@charset "UTF-8";
:root{--ink:#152e35;--muted:#5f6d70;--paper:#faf9f5;--line:#dcded7;--accent:#bc643c;--mint:#e9eee8;--serif:Georgia,"Times New Roman",serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:6px}a:hover{color:var(--accent)}::selection{background:#ead2bb;color:var(--ink)}.container{width:min(1180px,calc(100% - 80px));margin-inline:auto}.skip-link{position:absolute;left:16px;top:-80px;background:var(--ink);color:white;padding:12px;z-index:5}.skip-link:focus{top:12px}.site-header{border-bottom:1px solid var(--line)}.header-inner{min-height:110px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:flex;align-items:center;gap:16px;text-decoration:none;font-size:12px;letter-spacing:.11em;font-weight:750;line-height:1.5}.brand small{display:block;letter-spacing:.02em;font-weight:400;font-size:11px;color:var(--muted);margin-top:3px}.monogram{font-family:var(--serif);font-size:38px;font-weight:bold;letter-spacing:-3px}.monogram span{color:var(--accent)}nav{display:flex;gap:30px}nav a,.header-contact{font-size:13px;text-decoration:none}.header-contact{border-bottom:1px solid var(--ink);padding:8px 0}.header-contact span{margin-left:16px}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:72px;align-items:center;padding-top:78px;padding-bottom:80px}.eyebrow{font-size:10px;font-weight:750;letter-spacing:.15em;line-height:1.6;margin:0 0 25px;color:var(--accent)}.hero .eyebrow{display:flex;align-items:center;gap:10px}.tiny-line{width:24px;height:1px;background:var(--accent)}h1{font-family:var(--serif);font-size:clamp(44px,4.5vw,66px);line-height:1.09;font-weight:400;letter-spacing:-2.4px;margin:0 0 27px}h1 em{font-weight:400;color:var(--accent)}.hero-description{max-width:470px;color:var(--muted);font-size:16px;line-height:1.9;margin:0}.hero-actions{display:flex;align-items:center;gap:25px;margin:32px 0}.button{display:inline-flex;justify-content:center;align-items:center;gap:28px;padding:14px 22px;font-size:13px;font-weight:600;text-decoration:none;border:1px solid transparent;transition:background .18s,color .18s}.button-dark{color:#fff;background:var(--ink)}.button-dark:hover{background:#284a53;color:#fff}.text-link{font-size:13px;text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:6px}.text-link span{margin-left:10px}.hero-footnote{font-size:11px;color:var(--muted);margin-top:28px}.hero-footnote span{color:var(--accent);font-size:18px;vertical-align:middle;margin-right:6px}.engineering-panel{color:#d5e0dc;background:var(--ink);border-radius:4px;transform:rotate(1deg);box-shadow:12px 12px 0 #e7e9e0;overflow:hidden}.panel-top,.panel-bottom{display:flex;justify-content:space-between;font-family:monospace;font-size:9px;letter-spacing:.05em;padding:22px 23px}.panel-top{border-bottom:1px solid #355058}.panel-top i{display:inline-block;width:6px;height:6px;background:#e5ad78;border-radius:50%;margin-right:6px}.diagram{padding:0 8px}.diagram svg{display:block;width:100%;height:auto}.panel-equation{padding:0 28px 20px}.panel-equation>span{font-size:9px;letter-spacing:.16em;color:#a5bcbd}.panel-equation p{font-family:var(--serif);font-size:25px;margin:6px 0}.panel-equation strong{color:#e5ad78;font-weight:400;font-style:italic}.panel-bottom{border-top:1px solid #355058;color:#b5c8c6;padding-block:15px}.topic-strip{border-block:1px solid var(--line);background:#f0f1e9}.topic-strip .container{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:20px;font-size:10px;letter-spacing:.1em;font-weight:600}.topic-strip i{color:var(--accent);font-size:17px;font-style:normal}.section{padding-block:88px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:60px;margin-bottom:40px}.section-heading .eyebrow{margin-bottom:14px}h2{font-family:var(--serif);font-size:39px;font-weight:400;line-height:1.2;letter-spacing:-1px;margin:0}.section-heading>p{max-width:340px;color:var(--muted);font-size:14px;margin:0 0 3px}.focus-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.focus-card{padding:28px 28px 25px;display:flex;flex-direction:column}.focus-card+.focus-card{border-left:1px solid var(--line)}.focus-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.focus-top>span:last-child{font-family:monospace;color:#78827c;font-size:11px}.topic-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--mint);font-family:var(--serif);font-size:30px;color:#325d54}.code-icon{font-family:monospace;font-size:18px}h3{font-size:19px;letter-spacing:-.4px;margin:0 0 12px;font-weight:600}.focus-card p{font-size:14px;color:var(--muted);margin:0 0 24px}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;margin-bottom:28px}.tags span{font-size:9px;border:1px solid var(--line);border-radius:3px;padding:3px 7px;color:#596860}.focus-card>a{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:17px;font-size:12px;text-decoration:none}.notes-section{background:#efefe8;border-block:1px solid var(--line)}.notes-list{border-top:1px solid #c9d0c7}.note{border-bottom:1px solid #c9d0c7;scroll-margin-top:25px}.note summary{list-style:none;display:grid;grid-template-columns:50px 1fr 35px;gap:16px;align-items:start;cursor:pointer;padding:29px 6px}.note summary::-webkit-details-marker{display:none}.note summary:hover .note-title{color:var(--accent)}.note-number{font-family:var(--serif);font-size:18px;color:#7b8580;padding-top:2px}.category{display:block;font-size:9px;font-weight:700;letter-spacing:.1em;color:var(--accent);margin-bottom:8px}.category>span{color:var(--muted);font-weight:400;letter-spacing:0;margin-left:8px}.note-title{display:block;font-family:var(--serif);font-size:26px;line-height:1.3;margin-bottom:8px;transition:color .15s}.note-teaser{font-size:13px;color:var(--muted);display:block}.expand{font-size:25px;font-weight:300;justify-self:end;align-self:center;transition:transform .2s}.note[open] .expand{transform:rotate(45deg)}.note-body{max-width:880px;margin-left:72px;padding:0 30px 32px 0;color:#405455;font-size:15px;line-height:1.85}.note-body p:first-child{margin-top:0}.note-body h4{font-size:16px;color:var(--ink);margin-bottom:8px}.note-body li{padding-left:4px;margin-bottom:10px}.formula{padding:18px 22px;border-left:3px solid var(--accent);background:#faf9f5;font-family:monospace;font-size:14px}.note-body pre{padding:22px;background:var(--ink);color:#e4e9dc;border-radius:4px;overflow:auto;font-size:13px;line-height:1.85}.note-body code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.article-note{border-top:1px solid #d4d9ce;padding-top:16px;font-size:12px;color:var(--muted)}.language-list{margin-block:24px}.language-list>div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:16px 0;border-top:1px solid #d4d9ce}.language-list dt{font-weight:650;color:var(--ink)}.language-list dd{margin:0}.about-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:100px;align-items:center}.about-mark{position:relative;background:#e7ece4;padding:42px;min-height:290px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid #dce1d6}.about-mark>span:first-child{font-family:var(--serif);font-size:100px;line-height:1;letter-spacing:-7px;color:#426151}.about-mark>div{font-size:10px;letter-spacing:.17em;line-height:1.8;margin-top:40px;color:#426151}.mark-cross{position:absolute;right:26px;bottom:24px;color:var(--accent);font-size:28px}.about-copy h2{margin-bottom:23px}.about-copy>p:not(.eyebrow){color:var(--muted);font-size:14px}.about-copy .text-link{display:inline-block;margin-top:15px}.contact-band{background:var(--ink);color:#f6f4ec}.contact-inner{display:flex;justify-content:space-between;gap:30px;align-items:center;padding-block:48px}.contact-inner .eyebrow{color:#e5ad78;margin-bottom:10px}.contact-inner h2{font-size:34px}.contact-inner p:last-child{font-size:13px;color:#b7c9c6;margin-bottom:0}.button-light{background:#eee9db;color:var(--ink);flex-shrink:0}.button-light:hover{background:#e5ad78;color:var(--ink)}.site-footer{padding-block:33px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-inner strong{font-size:12px;font-weight:600;display:block}.footer-inner>div>span{font-size:10px;color:var(--muted)}.footer-links{display:flex;gap:24px;font-size:11px}.footer-links a{text-decoration:none}.footer-inner small{font-size:10px;color:var(--muted)}
@media(min-width:1500px){.hero{padding-block:100px}}
@media(max-width:1050px){.container{width:calc(100% - 48px)}.hero{gap:38px}.header-inner{gap:20px}nav{gap:20px}.hero-actions{gap:18px;flex-wrap:wrap}h1{font-size:49px}.panel-equation p{font-size:23px}.about-section{gap:55px}.focus-card{padding:24px 20px}.topic-strip .container{font-size:9px;gap:12px}.section-heading{gap:30px}}
@media(max-width:760px){.header-inner{flex-wrap:wrap;padding-block:17px;min-height:auto;row-gap:18px}.brand{font-size:11px}.monogram{font-size:34px}.header-contact{font-size:12px}nav{order:3;width:100%;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px}nav a{font-size:12px}.hero{grid-template-columns:1fr;padding-block:45px 50px;gap:35px}.hero-description{max-width:100%;font-size:15px}h1{font-size:clamp(43px,8vw,61px);letter-spacing:-1.8px}.hero .eyebrow{margin-bottom:23px}.hero-actions{margin-block:26px}.hero-footnote{margin-top:20px}.engineering-panel{max-width:520px;width:calc(100% - 10px);margin-inline:auto}.diagram svg{max-height:245px}.panel-equation{padding-top:0}.topic-strip .container{flex-wrap:wrap;justify-content:center;gap:8px 16px;font-size:9px;padding-block:16px}.topic-strip i:last-of-type{display:none}.section{padding-block:55px}.section-heading{display:block;margin-bottom:30px}h2{font-size:33px}.section-heading>p{margin-top:20px;max-width:480px}.focus-grid{grid-template-columns:1fr}.focus-card{padding:26px}.focus-card+.focus-card{border-left:0;border-top:1px solid var(--line)}.focus-top{margin-bottom:20px}.focus-card p{max-width:520px}.tags{margin-bottom:22px}.note summary{grid-template-columns:28px 1fr 20px;gap:12px;padding-block:24px}.note-title{font-size:23px}.note-teaser{font-size:12px}.note-body{margin-left:46px;padding-right:0;font-size:14px}.category{font-size:8px}.category>span{white-space:nowrap}.note-number{font-size:16px}.formula{font-size:12px;padding:14px}.note-body pre{font-size:11px;padding:16px}.language-list>div{grid-template-columns:1fr;gap:4px}.about-section{grid-template-columns:1fr;gap:30px}.about-mark{min-height:220px;max-width:100%;padding:30px}.about-mark>span:first-child{font-size:90px}.about-mark>div{margin-top:20px}.contact-inner{align-items:start;flex-direction:column;padding-block:38px;gap:24px}.contact-inner h2{font-size:31px}.footer-inner{flex-wrap:wrap;gap:22px}.footer-links{margin-left:auto}.footer-inner small{width:100%}.note-body ol{padding-left:20px}}
@media(max-width:380px){.container{width:calc(100% - 32px)}.brand{gap:10px;font-size:10px}.header-contact{font-size:11px}.header-contact span{margin-left:5px}.note-title{font-size:21px}.hero-actions .text-link{font-size:12px}.topic-strip .container{gap:8px}.panel-bottom{font-size:8px;padding-inline:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}