*{box-sizing:border-box}body{margin:0;background:#07131f;color:#e9f1f8;font:16px/1.65 system-ui,Arial,sans-serif}a{color:#66d6e8;text-decoration:none}a:hover{text-decoration:underline}.shell{max-width:1060px;margin:auto;padding:30px 24px}.top{display:flex;justify-content:center;gap:28px;border-bottom:1px solid #2c4356;padding:15px;letter-spacing:.09em;font-size:12px;font-weight:700}.hero{padding:65px 16px 45px;display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:center}.eyebrow{font:11px monospace;letter-spacing:.17em;color:#66d6e8}.hero h1{font-size:clamp(30px,4.4vw,57px);line-height:1.11;letter-spacing:-.045em;margin:20px 0}.accent{color:#66d6e8}.sub{color:#9cb3c3}.line{border-top:1px solid #254057;margin:30px 0}.button{display:inline-block;background:#62d5e5;color:#082033;padding:12px 20px;border-radius:3px;font-weight:700}.circle{width:100%;max-width:310px;margin:auto;aspect-ratio:1;border:1px solid #254f68;border-radius:50%;position:relative;background:repeating-radial-gradient(circle at 50% 50%,transparent 0 20px,#173b50 21px 22px);box-shadow:0 0 90px #12354a66}.circle:after{content:'ξ';position:absolute;inset:40%;color:#66d6e8;font:italic 36px Georgia}.chapter-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.chapter{display:flex;gap:18px;background:#102132;border:1px solid #2a465b;border-radius:5px;padding:19px}.num{font:24px monospace;color:#66d6e8}.chapter strong{color:#edf5ff}.chapter small{display:block;color:#8da9bc}.sections{padding:10px 0 10px 26px}.sections a{display:block;padding:6px 0;color:#b6cbd9;font-size:14px}.book{background:#eaf0f3;color:#182532;min-height:100vh}.book .shell{max-width:1100px}.book .top{border-color:#b9cbd7}.book .top a{color:#165b78}.book-nav{display:flex;justify-content:space-around;gap:10px;border:1px solid #c2d6e3;border-radius:7px;padding:13px;background:#f4f8fa;margin:10px 0}.book-nav a{color:#155674;font-weight:700;font-size:13px}.pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:7px;padding:15px 0}.pagination a,.pagination span{padding:4px 8px;font-size:12px;border-radius:4px;color:#155674}.pagination .active{background:#165b78;color:white}.paper{margin:14px auto 50px;background:white;box-shadow:0 7px 30px #20374822;max-width:860px;padding:16px}.paper img{width:100%;height:auto;display:block}.note{font-size:12px;color:#647e8e;text-align:center;margin:12px}.foot{padding:36px 0;color:#7897aa;font-size:12px;border-top:1px solid #254057;margin-top:45px}@media(max-width:650px){.hero{grid-template-columns:1fr}.circle{display:none}.chapter-grid{grid-template-columns:1fr}.shell{padding:12px}.paper{padding:5px}}
/* GEN2 v2 selectable scientific text */
.paper{background:#fff;color:#1b2936;padding:clamp(20px,5vw,65px);border-radius:9px;line-height:1.75;font:18px/1.75 Georgia,serif;overflow-wrap:anywhere}
.paper .extracted{max-width:850px;margin:auto}.paper p{margin:0 0 1.15em}.paper .section-title{font:bold 1.35em/1.3 system-ui,sans-serif;margin:1.2em 0 .8em}.paper .eqblock{font:18px/1.7 'DejaVu Serif',Georgia,serif;white-space:pre-wrap;text-align:center;margin:1.4em auto;padding:.8em;background:#f5f8fa;border-radius:5px}.paper .source-view{border-top:1px solid #d8e3e9;margin-top:2em;padding-top:1em}.paper .source-view summary{font:600 13px system-ui,sans-serif;color:#166486;cursor:pointer}.paper .source-view img{width:100%;height:auto;display:block;margin-top:15px}.paper a{color:#13628b;text-decoration:underline;text-underline-offset:3px}.paper .source-warning{font:13px/1.5 system-ui,sans-serif;color:#657c8a;margin-bottom:22px}

/* DIPL GEN2 visual alignment + source-faithful equation crops */
body{background:#0a1522}body.book{background:#eef2f5;color:#18232d}
.hero .accent,.eyebrow,.num{color:#5ed5e9}
a{color:#5ed5e9}.button{background:#5ed5e9}
.gen2-equation{margin:1.4rem auto 1.8rem;padding:12px 8px 8px;text-align:center;background:#fff;border-top:1px solid #e2e8ed;border-bottom:1px solid #e2e8ed;overflow-x:auto}
.gen2-equation img{display:block;max-width:100%;width:auto;height:auto;margin:auto;object-fit:contain}
.gen2-equation figcaption{font:12px/1.5 system-ui,sans-serif;color:#667887;margin-top:6px}