:root{
  --ink:#0d0d19;
  --night:#17152f;
  --night-2:#211e45;
  --paper:#f7f0dc;
  --white:#fffdf6;
  --orange:#ff9e2c;
  --mint:#44e3b2;
  --pink:#ff5f8f;
  --indigo:#7078ff;
  --muted:#bbb6ca;
  --line:4px solid var(--ink);
  --wrap:min(1160px,calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:94px}
body{margin:0;background:var(--night);color:var(--paper);font-family:Inter,ui-rounded,"Arial Rounded MT Bold",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:17px;line-height:1.7;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-1;opacity:.14;pointer-events:none;background-image:radial-gradient(circle,var(--paper) 1px,transparent 1.5px);background-size:19px 19px}
img{max-width:100%}
a{color:inherit}
.wrap{width:var(--wrap);margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;border-bottom:var(--line);background:rgba(23,21,47,.96);backdrop-filter:blur(12px)}
.header-row{min-height:84px;display:flex;align-items:center;gap:30px}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto;text-decoration:none}
.brand img{width:58px;height:58px;object-fit:contain;filter:drop-shadow(3px 4px 0 var(--ink))}
.brand span{display:grid;line-height:1.05}.brand b{font-size:1rem;letter-spacing:.02em}.brand small{margin-top:5px;color:var(--mint);font-size:.74rem;font-weight:800;text-transform:uppercase;letter-spacing:.11em}
.site-nav{display:flex;align-items:center;gap:21px}.site-nav a{position:relative;text-decoration:none;font-size:.8rem;font-weight:900;text-transform:uppercase;letter-spacing:.065em}.site-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:3px;background:var(--orange);transition:right .2s ease}.site-nav a:hover::after,.site-nav a.active::after{right:0}
.menu-toggle{display:none;border:3px solid var(--ink);background:var(--orange);color:var(--ink);padding:9px 13px;font:900 .78rem/1 inherit;text-transform:uppercase;box-shadow:3px 3px 0 var(--ink)}
.comic-band{position:relative;border-bottom:var(--line);background-color:var(--night-2);background-image:linear-gradient(135deg,rgba(112,120,255,.22) 0 47%,transparent 47% 100%);overflow:hidden}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:70px;align-items:center;min-height:610px;padding:84px 0 92px}
.hero-copy{max-width:820px}.kicker{display:inline-block;margin:0 0 20px;padding:7px 12px;border:3px solid var(--ink);background:var(--mint);color:var(--ink);font-size:.76rem;font-weight:950;text-transform:uppercase;letter-spacing:.13em;box-shadow:5px 5px 0 var(--ink)}
h1,h2,h3,p{overflow-wrap:anywhere}h1,h2,h3{margin-top:0;line-height:1.08}
h1{max-width:880px;margin-bottom:26px;font-size:clamp(2.25rem,5vw,4.8rem);letter-spacing:-.055em;text-wrap:balance;text-shadow:4px 4px 0 var(--ink)}
.lead{font-size:1.12rem;line-height:1.75}.hero-copy p{max-width:780px}.hero-copy p:last-child{margin-bottom:0}
.anchor-link{font-weight:900;text-decoration-color:var(--orange);text-decoration-thickness:3px;text-underline-offset:4px}.anchor-link:hover{color:var(--mint)}
.hero-mark{position:relative;display:grid;place-items:center;width:230px;aspect-ratio:1;border:var(--line);border-radius:50%;background:var(--orange);color:var(--ink);text-align:center;box-shadow:14px 14px 0 var(--ink);transform:rotate(4deg)}
.hero-mark span{position:absolute;top:27px;left:50%;transform:translateX(-50%);font-size:.8rem;font-weight:950;letter-spacing:.16em}.hero-mark strong{font-size:1.5rem;line-height:1.05;text-transform:uppercase}.hero-mark i{position:absolute;bottom:32px;width:52px;height:7px;background:var(--ink);transform:rotate(-8deg)}
.reading-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:45px;padding:84px 0 100px}
.chapter-index{position:sticky;top:116px;align-self:start;border:var(--line);background:var(--paper);color:var(--ink);box-shadow:8px 8px 0 var(--ink)}
.chapter-index>p{margin:0;padding:13px 16px;border-bottom:3px solid var(--ink);background:var(--orange);font-size:.75rem;font-weight:950;text-transform:uppercase;letter-spacing:.13em}
.chapter-index a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:2px solid var(--ink);text-decoration:none;font-size:.82rem;font-weight:850;line-height:1.2}.chapter-index a:last-child{border-bottom:0}.chapter-index a span{display:grid;place-items:center;width:31px;aspect-ratio:1;border:2px solid var(--ink);border-radius:50%;background:var(--white);font-size:.67rem}.chapter-index a:hover,.chapter-index a.active{background:var(--mint)}
.chapters{display:grid;gap:44px;min-width:0}.chapter{position:relative;padding:52px 58px 58px;border:var(--line);color:var(--ink);box-shadow:12px 12px 0 var(--ink);scroll-margin-top:112px}.chapter::after{content:attr(data-chapter);position:absolute;right:25px;top:18px;color:rgba(13,13,25,.12);font-size:5rem;font-weight:1000;line-height:1}
.panel-indigo{background:#d8d9ff}.panel-orange{background:#ffd395}.panel-mint{background:#bff5e4}.panel-pink{background:#ffc1d4}.faq-panel{background:var(--paper)}
.chapter-label{position:relative;z-index:1;display:flex;align-items:center;gap:13px;margin-bottom:24px}.chapter-label span{display:grid;place-items:center;width:42px;aspect-ratio:1;border:3px solid var(--ink);border-radius:50%;background:var(--white);font-size:.75rem;font-weight:950}.chapter-label b{font-size:.74rem;text-transform:uppercase;letter-spacing:.13em}
.chapter h2{position:relative;z-index:1;max-width:760px;margin-bottom:25px;font-size:clamp(2rem,4vw,3.5rem);letter-spacing:-.045em;text-wrap:balance}.chapter h3{margin:31px 0 14px;font-size:1.08rem;text-transform:uppercase;letter-spacing:.035em}.chapter p{max-width:800px}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0 30px;padding:0;list-style:none}.check-list li{position:relative;padding:12px 14px 12px 44px;border:3px solid var(--ink);background:rgba(255,255,255,.52);font-weight:780}.check-list li::before{content:"✓";position:absolute;left:14px;top:10px;font-weight:1000}
.rule-chain{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin:28px 0 0;padding:0;list-style:none}.rule-chain li{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:112px;padding:16px 13px;border:3px solid var(--ink);border-right:0;background:rgba(255,255,255,.55);font-size:.8rem;font-weight:900;line-height:1.25;text-align:center}.rule-chain li:last-child{border-right:3px solid var(--ink)}.rule-chain span{display:block;margin-bottom:7px;color:#6c3b00;font-size:1.15rem}
.split-copy{display:grid;grid-template-columns:1fr 1fr;gap:20px}.split-copy article{padding:25px;border:3px solid var(--ink);background:rgba(255,255,255,.5)}.split-copy article h3{margin-top:0}.split-copy article p{margin-bottom:0}
.faq-list{display:grid;gap:12px}.faq-list details{border:3px solid var(--ink);background:var(--white)}.faq-list summary{cursor:pointer;padding:17px 52px 17px 18px;font-weight:950;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:"+";position:absolute;right:17px;top:10px;font-size:1.6rem;line-height:1}.faq-list details[open] summary{border-bottom:3px solid var(--ink);background:var(--mint)}.faq-list details[open] summary::after{content:"−"}.faq-list details p{margin:0;padding:17px 18px}
.site-footer{border-top:var(--line);background:var(--ink)}.footer-row{display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:18px;min-height:150px}.footer-row img{width:64px;height:64px;object-fit:contain}.footer-row strong{display:block}.footer-row p{margin:3px 0 0;color:var(--muted);font-size:.88rem}.footer-row>a{color:var(--mint);font-weight:900;text-decoration-thickness:2px;text-underline-offset:4px}
@media(max-width:980px){
  .header-row{min-height:76px}.menu-toggle{display:block}.site-nav{display:none;position:absolute;left:20px;right:20px;top:70px;flex-direction:column;align-items:stretch;gap:0;border:var(--line);background:var(--paper);color:var(--ink);box-shadow:8px 8px 0 var(--ink)}.site-nav.open{display:flex}.site-nav a{padding:14px 16px;border-bottom:2px solid var(--ink)}.site-nav a:last-child{border-bottom:0}.site-nav a::after{display:none}
  .hero-grid{grid-template-columns:minmax(0,1fr) 170px;gap:34px;min-height:560px}.hero-mark{width:165px;box-shadow:9px 9px 0 var(--ink)}.hero-mark strong{font-size:1.05rem}.hero-mark span{top:21px}.hero-mark i{bottom:25px;width:38px;height:5px}
  .reading-layout{grid-template-columns:1fr;gap:28px;padding-top:40px}.chapter-index{position:sticky;top:76px;z-index:20;display:flex;overflow:auto;box-shadow:5px 5px 0 var(--ink);white-space:nowrap}.chapter-index>p{display:none}.chapter-index a{flex:0 0 auto;border-right:2px solid var(--ink);border-bottom:0}.chapter-index a:last-child{border-right:0}
}
@media(max-width:700px){
  :root{--wrap:min(100% - 26px,1160px);--line:3px solid var(--ink)}
  body{font-size:16px}.brand img{width:50px;height:50px}.brand small{display:none}
  .comic-band{background-color:var(--night-2);background-image:linear-gradient(160deg,rgba(112,120,255,.22) 0 69%,transparent 69%)}.hero-grid{grid-template-columns:1fr;min-height:0;padding:56px 0 62px}.hero-mark{display:none}h1{font-size:clamp(2.15rem,11vw,3.4rem);text-shadow:3px 3px 0 var(--ink)}
  .reading-layout{padding-bottom:72px}.chapter-index a{padding:9px 11px;font-size:.72rem}.chapter-index a span{width:27px}
  .chapters{gap:29px}.chapter{padding:34px 22px 38px;box-shadow:7px 7px 0 var(--ink)}.chapter::after{right:15px;top:15px;font-size:3.8rem}.chapter h2{font-size:2.15rem}.check-list,.split-copy{grid-template-columns:1fr}.rule-chain{grid-template-columns:1fr}.rule-chain li{min-height:0;flex-direction:row;justify-content:flex-start;align-items:center;gap:12px;border-right:3px solid var(--ink);border-bottom:0;text-align:left}.rule-chain li:last-child{border-bottom:3px solid var(--ink)}.rule-chain span{margin:0}
  .footer-row{grid-template-columns:52px 1fr;padding:25px 0}.footer-row img{width:52px;height:52px}.footer-row>a{grid-column:2}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}