*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:Arial,Helvetica,sans-serif;line-height:1.6;text-rendering:optimizeLegibility}a{color:inherit;text-underline-offset:.2em}img,svg{max-width:100%;display:block}.skip-link{position:fixed;left:1rem;top:-5rem;z-index:1000;padding:.7rem 1rem;background:#fff;color:#111;border:2px solid currentColor}.skip-link:focus{top:1rem}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid currentColor;outline-offset:4px}.site-header nav{max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:1.1rem 2rem}.brand{text-decoration:none;font-weight:800;letter-spacing:-.04em}.nav-links{display:flex;gap:1.3rem;align-items:center}.nav-links a{text-decoration:none;font-size:.93rem}.hero,.featured,.library,.principles,.plain-page,.not-found,.article{max-width:1240px;margin-inline:auto;padding-inline:2rem}.hero{min-height:68vh;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:4rem;align-items:center;padding-block:6rem}.hero h1,.article h1,.plain-page h1,.not-found h1{font-size:clamp(3rem,7.3vw,7.4rem);line-height:.92;letter-spacing:-.07em;margin:.12em 0 .3em;max-width:12ch}.lede{font-size:clamp(1.1rem,2vw,1.45rem);line-height:1.55;max-width:42rem}.kicker,.section-heading>p,.feature-list article>span,.library-list article>p{font-size:.77rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.primary-link{display:inline-block;margin-top:1.2rem;padding:.75rem 1rem;border:2px solid currentColor;text-decoration:none;font-weight:800}.featured,.library,.principles{padding-block:5rem}.section-heading{display:grid;grid-template-columns:1fr 3fr;align-items:baseline;border-top:2px solid currentColor;padding-top:1rem;margin-bottom:2rem}.section-heading h2,.principles h2{font-size:clamp(2rem,4vw,4.4rem);line-height:1;letter-spacing:-.055em;margin:0}.feature-list article{display:grid;grid-template-columns:1fr 3fr;gap:2rem;padding:2rem 0;border-top:1px solid currentColor}.feature-list h3,.library-list h3{font-size:clamp(1.4rem,2.7vw,2.5rem);line-height:1.08;margin:.15rem 0 .55rem;letter-spacing:-.035em}.feature-list p,.library-list p{max-width:48rem}.library-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px}.library-list article{padding:1.7rem;border:1px solid currentColor}.principles{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem}.article-header{padding-block:7rem 4rem;border-bottom:1px solid currentColor}.article-meta{display:flex;flex-wrap:wrap;gap:1rem 2rem;margin-top:2rem;font-size:.85rem}.article-layout{display:grid;grid-template-columns:260px minmax(0,720px);gap:5rem;justify-content:center;padding-block:4rem 7rem}.toc{position:sticky;top:2rem;align-self:start;display:grid;gap:.75rem;font-size:.9rem}.toc strong{margin-bottom:.4rem}.article-body section{scroll-margin-top:2rem;margin-bottom:4rem}.article-body h2,.plain-page h2{font-size:clamp(1.8rem,3.3vw,3rem);line-height:1.08;letter-spacing:-.04em;margin:0 0 1.2rem}.article-body p,.article-body li,.plain-page>p{font-size:1.08rem}.article-body li{margin-bottom:.55rem}.note,.verification{margin:2rem 0;padding:1.3rem 1.5rem;border-left:5px solid currentColor}.note p,.verification p{margin-bottom:0}.plain-page{max-width:900px;padding-block:8rem 10rem}.plain-page h1{max-width:14ch}.plain-page h2{margin-top:4rem}.not-found{padding-block:12rem}footer{max-width:1240px;margin:auto;padding:4rem 2rem 2rem;display:grid;grid-template-columns:2fr 1fr;gap:3rem;border-top:2px solid currentColor}footer p{max-width:34rem}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}footer small{grid-column:1/-1;margin-top:2rem}.status-strip{text-align:center;padding:.35rem 1rem;font-size:.78rem;font-weight:700}.chapter-rail{display:grid}.chapter-rail>span{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:1rem}.chapter-rail a{display:grid;grid-template-columns:3rem 1fr;text-decoration:none;padding:.9rem 0;border-top:1px solid currentColor}.route{display:grid}.route>div{display:grid;grid-template-columns:3rem 1fr;align-items:center;gap:1rem;padding:1.1rem 0;border-bottom:1px solid currentColor}.route span{display:grid;place-items:center;width:2.5rem;height:2.5rem;border-radius:50%;font-weight:800}.ledger{border-top:3px solid currentColor}.ledger>div{display:grid;grid-template-columns:3rem 1fr 1.4fr;gap:1rem;padding:1.1rem 0;border-bottom:1px solid currentColor}.ledger em{font-style:normal}.module-flow{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap}.module-flow>div{padding:1rem;min-width:150px;border:2px solid currentColor;border-radius:1rem}.module-flow span{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em}.module-flow i{font-size:1.5rem}.mark-stage{position:relative;min-height:370px;overflow:hidden}.mark-shape{position:absolute}.mark-word{position:absolute;font-weight:900;font-size:7rem;line-height:1}.tool-panel{margin:0 0 4rem;padding:2rem;border:2px solid currentColor}.tool-controls{display:grid;grid-template-columns:2fr 1fr 1fr;gap:1rem}.tool-controls label{display:grid;gap:.4rem;font-weight:700}.tool-controls input,.tool-controls select{width:100%;padding:.8rem;border:1px solid currentColor;background:transparent;color:inherit;font:inherit}.tool-preview{min-height:220px;margin-top:1.5rem;padding:2rem;display:grid;place-items:center;border:1px dashed currentColor;overflow:hidden}.tool-preview output{font-size:clamp(2.5rem,8vw,7rem);font-weight:800;line-height:1;white-space:nowrap}.meta-output{display:block;width:100%;white-space:pre-wrap;font:1rem/1.5 ui-monospace,SFMono-Regular,Consolas,monospace}
@media(max-width:800px){.site-header nav{align-items:flex-start}.nav-links{display:grid;gap:.3rem;text-align:right}.hero{grid-template-columns:1fr;min-height:auto;padding-block:4rem}.hero h1,.article h1,.plain-page h1{font-size:clamp(2.8rem,14vw,5.5rem)}.section-heading,.feature-list article{grid-template-columns:1fr}.library-list{grid-template-columns:1fr}.principles{grid-template-columns:1fr}.article-layout{grid-template-columns:1fr;gap:2rem}.toc{position:static}.tool-controls{grid-template-columns:1fr}footer{grid-template-columns:1fr}.footer-links,footer small{grid-column:1}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
.source-resources{margin-top:5rem;padding-top:2rem;border-top:2px solid currentColor}.source-resources ul{list-style:none;padding:0}.source-resources li{padding:1rem 0;border-bottom:1px solid currentColor}.source-resources a{font-size:1.15rem;font-weight:800}.source-resources p{margin:.35rem 0 0}

body[data-site=phplogix]{background:#f6f3ea;color:#15202b}.site-header{border-bottom:1px solid #15202b}.brand{font-size:1.45rem}.brand::before{content:"<? ";color:#d44635}.brand::after{content:" ?>";color:#2257d6}.hero{grid-template-columns:minmax(0,1.5fr) minmax(270px,.5fr)}.hero-copy{border-left:8px solid #2257d6;padding-left:2rem}.primary-link{background:#15202b;color:#f6f3ea}.chapter-rail{border:1px solid #15202b;padding:1.5rem;transform:rotate(1deg)}.chapter-rail b{color:#2257d6}.featured{background:#15202b;color:#f6f3ea;max-width:none;padding-inline:max(2rem,calc((100vw - 1240px)/2 + 2rem))}.featured a{color:#f6f3ea}.library-list article:nth-child(3n+2){background:#e7e1d4}.note,.verification{background:#ebe5d8;border-color:#d44635}.article-header{border-left:8px solid #2257d6;padding-left:2rem}.toc a:hover{color:#2257d6}footer{border-color:#2257d6}