*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --paper:#f8f6f2;
  --paper2:#ede9e3;
  --ink:#1e2a3a;
  --muted:#6b7280;
  --accent:#175DDC;
  --accent-soft:#e8f0fe;
  --rule:#d4d0c8;
  --serif:"Libre Baskerville","Noto Serif SC",Georgia,serif;
  --sans:"Lato","Noto Sans SC",system-ui,sans-serif;
  --mono:"Courier Prime",Consolas,monospace
}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--paper);color:var(--ink);
  line-height:1.7;background-image:radial-gradient(circle at 80% 20%,rgba(23,93,220,.05) 0%,transparent 45%)
}
.topbar{position:sticky;top:0;z-index:100;background:rgba(248,246,242,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.topbar-inner{max-width:1080px;margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--serif);font-weight:700;font-size:1.1rem}
.brand img{width:30px;height:30px}
.topnav{display:flex;gap:28px}
.topnav a{text-decoration:none;color:var(--muted);font-size:.88rem;font-weight:600;padding:20px 0;border-bottom:2px solid transparent;transition:.2s}
.topnav a:hover{color:var(--ink)}
.topnav a.on{color:var(--accent);border-bottom-color:var(--accent)}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
.masthead{padding:56px 0 48px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:end}
.masthead-kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.masthead h1{font-family:var(--serif);font-size:clamp(2.2rem,4.5vw,3.4rem);font-weight:400;line-height:1.12;margin-bottom:18px}
.masthead h1 em{font-style:italic;color:var(--accent)}
.masthead-lead{font-size:1.02rem;color:var(--muted);max-width:460px;margin-bottom:28px}
.masthead-btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;padding:12px 24px;font-size:.88rem;font-weight:700;border-radius:2px;text-decoration:none;transition:.2s;cursor:pointer;border:none}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:#1252A3}
.btn-s{background:transparent;color:var(--ink);border:1px solid var(--rule)}
.btn-s:hover{border-color:var(--accent);color:var(--accent)}
.paper-stack{position:relative;padding:20px}
.paper-back,.paper-mid,.paper-front{border-radius:3px;border:1px solid var(--rule);background:#fff;box-shadow:2px 3px 0 var(--rule)}
.paper-back{position:absolute;top:0;left:24px;right:-8px;height:100%;transform:rotate(2deg);background:var(--paper2)}
.paper-mid{position:absolute;top:8px;left:12px;right:-4px;height:calc(100% - 16px);transform:rotate(-1deg)}
.paper-front{position:relative;z-index:1;overflow:hidden;cursor:zoom-in}
.paper-front img{width:100%;display:block}
.pullquote{margin:48px 0;padding:36px 40px;background:var(--accent-soft);border-left:4px solid var(--accent);font-family:var(--serif);font-size:clamp(1.2rem,2.5vw,1.6rem);font-style:italic;line-height:1.5;color:var(--ink)}
.pullquote cite{display:block;margin-top:12px;font-size:.82rem;font-style:normal;color:var(--muted);font-family:var(--sans)}
.masonry{columns:2;column-gap:20px;margin:40px 0}
.masonry-card{break-inside:avoid;margin-bottom:20px;padding:24px;background:#fff;border:1px solid var(--rule);border-radius:3px;box-shadow:3px 4px 0 rgba(30,42,58,.06);transition:.25s}
.masonry-card:hover{transform:translateY(-3px);box-shadow:4px 6px 0 rgba(23,93,220,.12)}
.masonry-card .tag{font-family:var(--mono);font-size:.65rem;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}
.masonry-card h3{font-family:var(--serif);font-size:1.1rem;margin-bottom:8px;font-weight:700}
.masonry-card p{font-size:.88rem;color:var(--muted);line-height:1.65}
.masonry-card.tall{padding-bottom:40px}
.masonry-card img{width:100%;margin-top:12px;border-radius:2px;border:1px solid var(--rule);cursor:zoom-in}
.chapter{margin:56px 0 28px;padding-top:28px;border-top:1px solid var(--rule)}
.chapter-num{font-family:var(--mono);font-size:.7rem;color:var(--accent);letter-spacing:.12em;margin-bottom:6px}
.chapter h2{font-family:var(--serif);font-size:1.7rem;font-weight:700}
.columns{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin:32px 0}
.col-block h3{font-family:var(--serif);font-size:1.05rem;margin-bottom:10px}
.col-block p{font-size:.9rem;color:var(--muted);line-height:1.75;margin-bottom:12px}
.col-block ul{margin-left:18px;font-size:.88rem;color:var(--muted)}
.col-block li{margin-bottom:6px}
.timeline{margin:36px 0;padding-left:28px;border-left:2px solid var(--accent-soft)}
.tl-item{position:relative;padding:0 0 32px 24px}
.tl-item::before{content:'';position:absolute;left:-35px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:3px solid var(--paper)}
.tl-item h4{font-family:var(--serif);font-size:1rem;margin-bottom:6px}
.tl-item p{font-size:.88rem;color:var(--muted);line-height:1.7}
.faq-list{margin:32px 0}
.faq-list details{border-bottom:1px solid var(--rule);padding:18px 0}
.faq-list summary{font-family:var(--serif);font-weight:700;cursor:pointer;font-size:.95rem;list-style:none}
.faq-list summary::before{content:'+ ';color:var(--accent);font-family:var(--mono)}
.faq-list details[open] summary::before{content:'- '}
.faq-list p{padding-top:10px;font-size:.88rem;color:var(--muted);line-height:1.75}
.feat-scroll{display:flex;gap:16px;overflow-x:auto;padding:8px 0 20px;scroll-snap-type:x mandatory;margin:24px 0}
.feat-card{flex:0 0 220px;scroll-snap-align:start;padding:20px;background:#fff;border:1px solid var(--rule);border-radius:3px;box-shadow:2px 3px 0 var(--rule)}
.feat-card h4{font-size:.9rem;margin-bottom:6px}
.feat-card p{font-size:.78rem;color:var(--muted);line-height:1.55}
.zoom-panel{position:fixed;inset:0;z-index:999;background:rgba(30,42,58,.7);display:flex;align-items:flex-end;justify-content:center;opacity:0;visibility:hidden;transition:.35s;padding:24px}
.zoom-panel.open{opacity:1;visibility:visible}
.zoom-sheet{background:#fff;border-radius:8px 8px 0 0;max-width:900px;width:100%;max-height:85vh;overflow:auto;transform:translateY(100%);transition:transform .4s cubic-bezier(.22,1,.36,1);padding:20px}
.zoom-panel.open .zoom-sheet{transform:translateY(0)}
.zoom-sheet img{width:100%;border-radius:4px}
.zoom-cap{text-align:center;padding:12px;font-size:.85rem;color:var(--muted)}
.zoom-x{position:absolute;top:20px;right:24px;background:#fff;border:1px solid var(--rule);width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:18px}
.foot{margin-top:64px;padding:32px 0;border-top:1px solid var(--rule);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.78rem;color:var(--muted)}
.foot a{color:var(--accent);text-decoration:none}
.friend-links{width:100%;margin-top:14px;font-size:.78rem;color:var(--muted)}
.friend-links a{color:var(--accent);text-decoration:none}
.friend-links a:hover{text-decoration:underline}
.crumb{font-size:.72rem;color:var(--muted);padding:14px 0;font-family:var(--mono)}
.crumb a{color:var(--accent);text-decoration:none}
.dl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:28px 0 40px}
.dl-card{display:block;padding:22px 24px;background:#fff;border:1px solid var(--rule);border-radius:3px;box-shadow:3px 4px 0 rgba(30,42,58,.06);text-decoration:none;color:var(--ink);transition:.25s}
.dl-card:hover{transform:translateY(-3px);box-shadow:4px 6px 0 rgba(23,93,220,.12);border-color:var(--accent-soft)}
.dl-tag{font-family:var(--mono);font-size:.62rem;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:8px}
.dl-card b{font-family:var(--serif);font-size:1.05rem;display:block;margin-bottom:6px}
.dl-card p{font-size:.82rem;color:var(--muted);line-height:1.55;margin-bottom:10px}
.dl-go{font-size:.78rem;font-weight:700;color:var(--accent)}
.col-block a{color:var(--accent)}
@media(max-width:800px){.masthead{grid-template-columns:1fr}.masonry,.columns{columns:1;grid-template-columns:1fr}.dl-grid{grid-template-columns:1fr}.topnav{gap:14px}.topnav a{font-size:.8rem}}