:root{--bg-canvas:#242424;--bg-surface:#33352f;--bg-surface-hover:#3b3e36;--text-primary:#ffffff;--text-muted:#d0d3c8;--accent-primary:#a3e635;--accent-secondary:#d9f99d;--border-subtle:#4b4f45;--ease-kinetic:cubic-bezier(0.16,1,0.3,1);--shadow-elevation:none;--glow-accent:none;--glass-backdrop:blur(16px) saturate(180%);--r:20px;--max:1200px;--rail:clamp(1rem,2.5vw,1.6rem);--pad:clamp(2.8rem,6vw,4.6rem)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg-canvas);color:var(--text-primary);font:400 1.0625rem/1.78 system-ui,"Segoe UI",Roboto,sans-serif;overflow-wrap:anywhere;hyphens:auto}
h1,h2,h3,h4{font-family:system-ui,"Segoe UI",Roboto,sans-serif;font-weight:800;letter-spacing:-.035em;line-height:1.1;margin:0 0 .6em;overflow-wrap:anywhere;hyphens:auto}
h1{font-size:clamp(2.3rem,5.4vw,4.1rem)}h2{font-size:clamp(1.65rem,3.3vw,2.5rem)}h3{font-size:1.25rem;letter-spacing:-.02em}
p{margin:0 0 1.1em}ul,ol{padding-left:1.2rem}
img{max-width:100%;height:auto;display:block;border-radius:var(--r);object-fit:cover;background:var(--bg-surface)}
a{color:var(--accent-primary);text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .45s var(--ease-kinetic),color .3s}
a:hover,a:focus-visible{background-size:100% 1px}
:focus-visible{outline:2px solid var(--accent-primary);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}
.prose{max-width:70ch}
.muted{color:var(--text-muted)}
.site-header{position:relative;z-index:30;display:flex;align-items:center;gap:1.5rem;max-width:var(--max);margin:0 auto;padding:1.1rem clamp(1rem,4vw,2rem)}
.brand{display:inline-flex;align-items:center;gap:.6rem;color:#fff;font-weight:800;letter-spacing:-.03em;font-size:1.12rem;margin-right:auto;background:none}
.brand:hover{color:var(--accent-primary)}
.mark{flex:0 0 28px;width:28px;height:28px;border:2px solid var(--accent-primary);border-radius:8px;position:relative}
.mark::after{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--accent-primary)}
.site-nav{display:flex;gap:1.5rem;align-items:center}
.site-nav ul{display:flex;gap:1.1rem;list-style:none;margin:0;padding:0}
.site-nav ul+ul{padding-left:1.5rem;border-left:1px solid var(--border-subtle)}
.site-nav a{color:var(--text-muted);font-size:.94rem;white-space:nowrap}
.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--accent-primary)}
.menu-btn{display:none;background:var(--bg-surface);color:#fff;border:1px solid var(--border-subtle);border-radius:12px;width:44px;height:44px;font-size:1.5rem;line-height:1;cursor:pointer}
.glow{position:relative;isolation:isolate}
.glow::before{content:"";position:absolute;z-index:-1;inset:0;background:radial-gradient(45% 55% at 18% 35%,rgba(163,230,53,.17),transparent 70%),radial-gradient(40% 50% at 85% 70%,rgba(163,230,53,.11),transparent 72%);background-size:200% 200%;animation:gradientShift 12s ease infinite;pointer-events:none}
@keyframes gradientShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center;padding:clamp(2rem,6vw,5rem) 0}
.hero img{width:100%;aspect-ratio:4/5}
.hero.slim img{aspect-ratio:4/3}
.eyebrow{display:block;color:var(--accent-primary);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;margin-bottom:.9rem}
.lede{font-size:1.18rem;color:var(--text-muted);max-width:56ch}
.actions{display:flex;flex-wrap:wrap;gap:1.4rem;align-items:center;margin-top:1.6rem}
.btn{display:inline-block;background:var(--accent-primary);color:#1b1d17;font-weight:800;padding:.95rem 1.6rem;border-radius:999px;transition:transform .4s var(--ease-kinetic),background-color .3s}
.btn:hover,.btn:focus-visible{transform:translateY(-3px);background-color:var(--accent-secondary)}
.chapters{position:relative;padding-left:var(--pad)}
.chapters::before,.progress{content:"";position:absolute;left:var(--rail);top:0;bottom:0;width:1px;background:var(--border-subtle)}
.progress{background:var(--accent-primary);transform-origin:top;transform:scaleY(var(--p,0));transition:transform .15s linear}
.chapter{position:relative;padding:clamp(2.2rem,5vw,4rem) 0}
.chapter::before{content:"";position:absolute;left:calc(var(--rail) - var(--pad) - 6.5px);top:calc(clamp(2.2rem,5vw,4rem) + .35rem);width:14px;height:14px;border-radius:50%;background:var(--bg-canvas);border:2px solid var(--accent-primary)}
.num{display:block;font-weight:800;color:var(--accent-primary);font-size:.85rem;letter-spacing:.14em;margin-bottom:.5rem}
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;align-items:start}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;margin:1.5rem 0}
.panel{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--r);padding:1.5rem;transition:transform .5s var(--ease-kinetic),border-color .3s,background-color .3s}
.panel:hover{transform:translateY(-5px) scale(1.015);border-color:var(--accent-primary);background-color:var(--bg-surface-hover)}
.panel h3{margin-bottom:.5em}.panel p:last-child{margin-bottom:0}
.label{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-primary);margin-bottom:.4rem}
figure{margin:0}figcaption{color:var(--text-muted);font-size:.92rem;margin-top:.6rem;line-height:1.55}
.banner img{width:100%;aspect-ratio:16/9}
.media img{width:100%;aspect-ratio:4/3}
.thumb img{width:100%;aspect-ratio:1/1}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.5rem 0}
.compare img{width:100%;aspect-ratio:4/3}
.compare figcaption strong{color:#fff}
.annot{list-style:none;counter-reset:a;padding:0;margin:1rem 0}
.annot li{counter-increment:a;position:relative;padding-left:2.5rem;margin-bottom:.85rem}
.annot li::before{content:counter(a);position:absolute;left:0;top:.15rem;width:1.75rem;height:1.75rem;border:1px solid var(--accent-primary);border-radius:50%;color:var(--accent-primary);font-weight:800;font-size:.82rem;display:grid;place-items:center}
details{border:1px solid var(--border-subtle);border-radius:var(--r);background:var(--bg-surface);padding:1rem 1.25rem;margin-bottom:.8rem;transition:border-color .3s}
details[open],details:hover{border-color:var(--accent-primary)}
summary{cursor:pointer;font-weight:700;list-style-position:outside}
details p{margin:.8rem 0 0;color:var(--text-muted)}
.next{display:flex;flex-wrap:wrap;gap:1.4rem;margin-top:1rem}
table{width:100%;border-collapse:collapse;min-width:520px}
th,td{border:1px solid var(--border-subtle);padding:.65rem .8rem;text-align:left;vertical-align:top}
th{background:var(--bg-surface)}
form{display:grid;gap:1rem}
label{font-weight:700;font-size:.95rem}
input,select,textarea{width:100%;margin-top:.35rem;background:var(--bg-canvas);color:#fff;border:1px solid var(--border-subtle);border-radius:12px;padding:.75rem .9rem;font:inherit}
input:focus,select:focus,textarea:focus{border-color:var(--accent-primary);outline:none}
.tool-btns{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}
.link-btn{background:none;border:0;color:var(--accent-primary);font:inherit;font-weight:700;cursor:pointer;padding:.4rem 0;background-image:linear-gradient(currentColor,currentColor);background-position:0 100%;background-size:0 1px;background-repeat:no-repeat;transition:background-size .45s var(--ease-kinetic)}
.link-btn:hover,.link-btn:focus-visible{background-size:100% 1px}
button.btn{border:0;cursor:pointer;font:inherit;font-weight:800}
pre{white-space:pre-wrap;background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--r);padding:1rem;font-size:.9rem;min-height:4rem}
.site-footer{border-top:1px solid var(--border-subtle);margin-top:4rem;padding:3rem 0 2.5rem;color:var(--text-muted);font-size:.94rem}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:2rem}
.foot-h{color:#fff;font-weight:800;margin-bottom:.5rem}
.foot-links{list-style:none;padding:0;margin:0;display:grid;gap:.35rem}
.js .reveal{opacity:0;transform:translateY(26px)}
.js .reveal.reveal-visible{opacity:1;transform:translateY(0);transition:all .7s var(--ease-kinetic)}
@media (max-width:1024px){.site-nav{gap:1rem}.site-nav ul{gap:.8rem}.site-nav ul+ul{padding-left:1rem}.site-nav a{font-size:.86rem}}
@media (max-width:768px){.menu-btn{display:block}.site-nav{display:none;position:absolute;left:1rem;right:1rem;top:calc(100% - .2rem);flex-direction:column;align-items:stretch;gap:.8rem;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--r);padding:1.2rem 1.4rem}.site-nav.open{display:flex;animation:drop .4s var(--ease-kinetic)}.site-nav ul{flex-direction:column;gap:.55rem}.site-nav ul+ul{border-left:0;padding-left:0;border-top:1px solid var(--border-subtle);padding-top:.8rem}.site-nav a{font-size:1.05rem}.hero{grid-template-columns:1fr}.hero img{aspect-ratio:4/3}}
@keyframes drop{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:none}}
@media (max-width:480px){body{font-size:1rem}.compare{grid-template-columns:1fr}.panel{padding:1.2rem}.lede{font-size:1.06rem}}
@media (min-width:1025px){.hero{padding:5rem 0}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}.js .reveal{opacity:1;transform:none}}