:root{--bg-canvas:#3b0d1a;--bg-surface:#50182a;--bg-surface-hover:#602239;--text-primary:#fff7e8;--text-muted:#e1c6c7;--accent-primary:#e8d5a8;--accent-secondary:#c98c99;--border-subtle:#986574;--ease-kinetic:cubic-bezier(.16,1,.3,1);--shadow-elevation:0 12px 32px -4px rgba(0,0,0,.25);--glow-accent:0 0 24px -4px #e8d5a833;--glass-backdrop:blur(16px) saturate(180%)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg-canvas);color:var(--text-primary);font:16px/1.75 system-ui,sans-serif;overflow-wrap:anywhere;hyphens:auto}h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:400;line-height:1.16;text-wrap:balance}h1{font-size:clamp(2.5rem,5vw,4.7rem);margin:.35em 0 .5em}h2{font-size:clamp(1.8rem,3vw,2.7rem);margin:.3em 0 .7em}h3{font-size:1.45rem}a{color:var(--accent-primary);text-underline-offset:5px}a:hover{color:var(--text-primary)}button,input,textarea,select{font:inherit}button,a,input,textarea,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent-primary);outline-offset:5px}img{display:block;width:100%;height:auto;object-fit:cover;border-radius:0}figure{margin:0}figcaption{font-size:.85rem;color:var(--text-muted);margin-top:.7rem}.wrap{max-width:1200px;margin:auto;padding-inline:32px}.site-header{position:relative;border-bottom:1px solid var(--border-subtle);padding:22px 24px;display:flex;align-items:center;gap:28px;justify-content:space-between}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--text-primary);font-size:.87rem;white-space:nowrap;font-weight:650}.brand-mark{font-size:1.7rem;line-height:1;color:var(--accent-primary)}.site-nav{display:flex;gap:17px;align-items:center}.site-nav a{font-size:.83rem;text-decoration:none;white-space:nowrap}.site-nav a[aria-current=page]{border-bottom:1px solid var(--accent-primary);color:var(--text-primary)}.menu-toggle{display:none;background:transparent;border:0;color:var(--accent-primary);font-size:2rem;padding:0 10px}.skip{position:absolute;left:12px;top:-100px;z-index:30;background:var(--accent-primary);color:var(--bg-canvas);padding:8px 16px}.skip:focus{top:8px}.hero{padding:68px 0 85px}.hero-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:55px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.76rem;color:var(--accent-primary);font-weight:650}.lead{font-size:1.15rem;color:var(--text-muted);max-width:56ch}.button,button.action{display:inline-block;border:0;border-radius:999px;background:var(--accent-primary);color:var(--bg-canvas);padding:12px 23px;font-weight:650;text-decoration:none;transition:transform .35s var(--ease-kinetic),box-shadow .35s var(--ease-kinetic)}.button:hover,button.action:hover{color:var(--bg-canvas);transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow-elevation),var(--glow-accent)}.button.secondary{background:transparent;color:var(--accent-primary);box-shadow:inset 0 0 0 1px var(--border-subtle)}.hero-art{position:relative;padding-bottom:90px}.hero-art img{aspect-ratio:4/3;background:var(--bg-surface)}.principles{position:absolute;bottom:0;right:-10px;width:85%;background:var(--bg-surface);border:1px solid var(--border-subtle);padding:20px 24px;box-shadow:var(--shadow-elevation)}.principles p{margin:0 0 8px}.principles ol{margin:0;padding-left:22px;font-size:.92rem}.band{padding:66px 0 78px}.band.alternate{background:var(--bg-surface);clip-path:polygon(0 15px,100% 0,100% calc(100% - 15px),0 100%)}.section-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}.summary-strip{border-block:1px solid var(--border-subtle);padding:13px 0;color:var(--text-muted);font-size:.9rem;display:flex;flex-wrap:wrap;gap:10px 30px}.task-list{list-style:none;padding:0;margin:0}.task-row{display:grid;grid-template-columns:36px 1fr;gap:13px;padding:22px 0;border-bottom:1px solid var(--border-subtle);transition:background .3s,transform .35s var(--ease-kinetic)}.task-row:hover{background:#e8d5a807;transform:translateX(4px)}.task-icon{color:var(--accent-primary);font-size:1.4rem}.task-row h3{margin:0 0 8px}.task-row p{margin:0;color:var(--text-muted)}.task-row a{display:inline-block;margin-top:10px}.tree{white-space:pre-wrap;overflow-wrap:anywhere;font: .9rem/1.9 ui-monospace,monospace;background:var(--bg-canvas);border-left:2px solid var(--accent-primary);padding:22px;color:var(--text-primary)}.article-heading{padding:60px 0 30px}.article-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:65px;padding-block:30px 80px}.article-sidebar{align-self:start;border-top:1px solid var(--border-subtle);padding-top:20px;font-size:.92rem}.article-sidebar ol{padding-left:20px}.article-body{max-width:70ch;margin:0 auto;min-width:0}.article-body h2{font-size:2rem;margin-top:1.8em}.article-body p{color:var(--text-muted)}.article-body li{margin-bottom:9px}.article-body strong{color:var(--text-primary)}.article-image{margin:22px 0 35px}.article-image img{aspect-ratio:16/9;background:var(--bg-surface)}.note{padding:20px 24px;background:var(--bg-surface);border-left:2px solid var(--accent-primary);margin:25px 0}.note p{margin:0}.method-buttons{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.method-buttons button{border:1px solid var(--border-subtle);background:transparent;color:var(--text-primary);padding:9px 17px;border-radius:999px}.method-buttons button[aria-pressed=true]{background:var(--accent-primary);color:var(--bg-canvas)}.method-panel{border-top:1px solid var(--border-subtle);padding:18px 0}.method-panel h3{margin:0 0 10px}[hidden]{display:none!important}details{border-bottom:1px solid var(--border-subtle);padding:18px 0}summary{cursor:pointer;font-family:Georgia,"Times New Roman",serif;font-size:1.2rem;color:var(--text-primary)}details p{color:var(--text-muted);max-width:70ch}.content-page{padding-block:55px 80px;max-width:76ch}.content-page h1{font-size:clamp(2.4rem,4.5vw,3.8rem)}.content-page h2{font-size:1.9rem;margin-top:1.5em}.content-page p,.content-page li{color:var(--text-muted)}.work-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}.problem-form{border-block:1px solid var(--border-subtle);padding:26px 0;margin:30px 0}.field{margin-bottom:20px}label{display:block;margin-bottom:6px;font-weight:600}input,textarea,select{width:100%;border:1px solid var(--border-subtle);border-radius:0;padding:12px;background:var(--bg-surface);color:var(--text-primary)}textarea{min-height:130px;resize:vertical}option{background:var(--bg-surface)}.field-help{font-size:.86rem;color:var(--text-muted);margin-top:5px}.actions{display:flex;flex-wrap:wrap;gap:12px}.output-note{min-height:200px;font-family:ui-monospace,monospace;font-size:.9rem}.status{min-height:1.7em;color:var(--accent-primary)}.site-footer{border-top:1px solid var(--border-subtle);padding-block:32px;font-size:.85rem;color:var(--text-muted)}.footer-inner{display:flex;justify-content:space-between;gap:25px;flex-wrap:wrap}.footer-links{display:flex;gap:19px;flex-wrap:wrap}.footer-brand{margin:0 0 8px}.reveal{opacity:1;transform:none}.js-reveals .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease-kinetic),transform .7s var(--ease-kinetic)}.js-reveals .reveal-visible{opacity:1;transform:translateY(0)}
@media(min-width:1025px){.article-sidebar{position:sticky;top:24px}}
@media(min-width:769px) and (max-width:1024px){.site-header{gap:15px;flex-wrap:wrap}.site-nav{width:100%;justify-content:space-between}.hero-grid{gap:28px}.section-grid{gap:32px}.article-layout{grid-template-columns:190px minmax(0,1fr);gap:32px}}
@media(max-width:768px){.site-header{padding:16px 20px}.menu-toggle{display:block}.site-nav{display:flex;flex-wrap:wrap;gap:14px 24px;width:100%;padding-top:14px}.site-header{flex-wrap:wrap}.js .site-nav{display:none;position:absolute;left:0;right:0;top:100%;z-index:20;padding:22px;background:var(--bg-surface);border-bottom:1px solid var(--border-subtle);box-shadow:var(--shadow-elevation)}.js .site-nav.is-open{display:grid;grid-template-columns:1fr 1fr}.site-nav a{font-size:1rem}.hero-grid,.section-grid{grid-template-columns:1fr;gap:32px}.hero{padding:40px 0 55px}.hero-art{max-width:530px}.principles{right:0}.article-layout{grid-template-columns:1fr;gap:20px}.article-sidebar{position:static}.article-sidebar ol{display:flex;flex-wrap:wrap;gap:12px 25px;list-style:none;padding:0}.band{padding-block:45px 60px}.article-heading{padding-top:35px}}
@media(min-width:481px) and (max-width:768px){.wrap{padding-inline:28px}.hero-art{width:85%;margin:auto}}
@media(max-width:480px){.wrap{padding-inline:20px}.brand{font-size:.75rem;gap:7px}.brand-mark{font-size:1.5rem}.principles{width:94%;padding:16px}.hero-art{padding-bottom:110px}.summary-strip{gap:6px 18px}.actions>*{width:100%;text-align:center}.work-grid{grid-template-columns:minmax(0,1fr)}.article-layout{padding-bottom:50px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.js-reveals .reveal{opacity:1;transform:none}}