:root{--ink:#172b3a;--muted:#62727d;--paper:#f5f2ea;--card:#fffef9;--line:#d9d6cb;--accent:#d9603b;--accent2:#2c7a73;--soft:#e7e1d3;--code:#12232f;--shadow:0 18px 50px rgba(23,43,58,.10);--sidebar:292px;--top:76px;color-scheme:light}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68;-webkit-font-smoothing:antialiased}
a{color:inherit}.reading-progress{position:fixed;z-index:1000;left:0;right:0;top:0;height:3px}.reading-progress span{display:block;width:0;height:100%;background:var(--accent)}
.topbar{position:fixed;z-index:900;top:3px;left:0;right:0;height:var(--top);display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:rgba(245,242,234,.92);border-bottom:1px solid rgba(23,43,58,.12);backdrop-filter:blur(14px)}
.brand{display:flex;gap:12px;align-items:center;text-decoration:none;line-height:1.05}.brand-mark{display:grid;place-items:center;width:39px;height:39px;border-radius:11px;background:var(--ink);color:var(--paper);font-family:Georgia,serif;font-size:22px}.brand strong{display:block;letter-spacing:.15em;font-size:13px}.brand small{display:block;margin-top:5px;color:var(--muted);font-size:11px}.top-actions{display:flex;gap:8px;align-items:center}.icon-button,.menu-button{border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}.icon-button{width:40px;height:40px;border-radius:50%;font-size:21px}.menu-button{display:none;height:40px;border-radius:20px;padding:0 15px;align-items:center;gap:4px}.menu-button span{display:none}.menu-button b{font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.sidebar{position:fixed;z-index:800;left:0;top:calc(var(--top) + 3px);bottom:0;width:var(--sidebar);padding:24px 20px 50px 28px;border-right:1px solid var(--line);background:var(--paper);overflow:auto}.search-box label{display:block;margin-bottom:8px;text-transform:uppercase;letter-spacing:.1em;font-size:10px;font-weight:800;color:var(--muted)}.search-box>div{display:flex;align-items:center;border:1px solid var(--line);background:var(--card);border-radius:10px;padding:0 11px}.search-box div span{font-size:20px;color:var(--muted)}.search-box input{width:100%;border:0;outline:0;background:transparent;color:var(--ink);padding:10px 8px;font:inherit;font-size:13px}.search-box p{min-height:18px;margin:4px 2px 0;color:var(--accent);font-size:11px}.study-progress{padding:15px 0 19px;border-bottom:1px solid var(--line)}.study-progress>div:first-child{display:flex;justify-content:space-between;font-size:12px}.study-progress strong{color:var(--accent2)}.progress-track{height:4px;margin-top:9px;background:var(--soft);border-radius:3px;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:var(--accent2);transition:width .25s}.sidebar nav{padding-top:16px}.sidebar nav a{position:relative;display:block;padding:6px 10px 6px 17px;text-decoration:none;color:var(--muted);border-radius:7px;font-size:12px;line-height:1.3}.sidebar nav a::before{content:"";position:absolute;left:3px;top:12px;width:5px;height:5px;border-radius:50%;background:var(--line)}.sidebar nav a:hover,.sidebar nav a.active{color:var(--ink);background:var(--soft)}.sidebar nav a.active::before{background:var(--accent)}.sidebar nav a.utility{margin-top:8px;color:var(--ink);font-weight:700}.backdrop{display:none}
main{margin-left:var(--sidebar);padding-top:calc(var(--top) + 3px)}.hero{min-height:630px;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);align-items:center;gap:55px;padding:82px clamp(40px,7vw,110px);background:var(--ink);color:#f9f5eb;overflow:hidden}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:11px;font-weight:800;color:#e9a080}.hero h1{margin:16px 0 25px;font-family:Georgia,"Times New Roman",serif;font-weight:400;line-height:1.02;font-size:clamp(49px,6vw,82px);letter-spacing:-.035em}.hero h1 em{color:#e9a080;font-weight:400}.hero-lead{max-width:660px;color:#c8d0d4;font-size:17px}.hero-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:35px}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border-radius:5px;padding:0 20px;font-weight:750;font-size:13px;text-decoration:none;cursor:pointer}.primary-button{gap:24px;background:var(--accent);color:white}.secondary-button{border:1px solid #61717b;background:transparent;color:white}.hero-card{position:relative;min-height:400px;border:1px solid rgba(255,255,255,.15);background:radial-gradient(circle at 50% 46%,rgba(217,96,59,.25),transparent 30%),linear-gradient(135deg,rgba(255,255,255,.09),rgba(255,255,255,.025));border-radius:50%;display:grid;grid-template-columns:repeat(3,1fr);align-content:end;gap:1px;padding:0 35px 68px;box-shadow:inset 0 0 50px rgba(255,255,255,.04)}.orbit{position:absolute;border:1px solid rgba(255,255,255,.12);border-radius:50%;inset:14%}.orbit-two{inset:29%}.terminal{position:absolute;left:13%;right:13%;top:34%;padding:12px 14px 15px;border-radius:7px;background:#0e1c25;box-shadow:0 20px 40px rgba(0,0,0,.25)}.terminal span{display:inline-block;width:6px;height:6px;margin-right:3px;border-radius:50%;background:#6e7d85}.terminal span:first-child{background:var(--accent)}.terminal code{display:block;margin-top:15px;color:#94d1b9;font-size:12px}.hero-stat{position:relative;text-align:center}.hero-stat strong{display:block;font:38px Georgia,serif;color:#fff}.hero-stat span{display:block;color:#aeb9bf;font-size:10px;line-height:1.35;text-transform:uppercase;letter-spacing:.1em}
.quick-map{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);background:var(--card)}.quick-map a{position:relative;min-height:142px;padding:28px 25px;border-right:1px solid var(--line);text-decoration:none;transition:background .2s,transform .2s}.quick-map a:last-child{border:0}.quick-map a:hover{background:var(--soft)}.quick-map span{position:absolute;right:18px;top:15px;color:#bab5a9;font:28px Georgia,serif}.quick-map strong,.quick-map small{display:block}.quick-map strong{margin-top:16px;font:24px Georgia,serif}.quick-map small{color:var(--muted);font-size:11px}
.content-shell{max-width:1050px;margin:auto;padding:60px clamp(28px,7vw,90px) 100px}.document>h1{display:none}.document>.topic{position:relative;margin:0 0 40px;padding:42px 46px;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 3px 0 rgba(23,43,58,.025)}.document>.topic::before{content:"";position:absolute;left:-1px;top:34px;width:4px;height:48px;background:var(--accent);border-radius:0 3px 3px 0}.topic>h2{margin:0 0 30px;font:400 clamp(29px,4vw,43px)/1.12 Georgia,"Times New Roman",serif;letter-spacing:-.025em}.topic h3{margin:34px 0 12px;color:var(--accent2);font-size:14px;line-height:1.35;text-transform:uppercase;letter-spacing:.075em}.topic h3:first-of-type{margin-top:0}.topic p{margin:0 0 16px}.topic ul,.topic ol{padding-left:24px;margin:10px 0 20px}.topic li{padding-left:5px;margin:6px 0}.topic strong{font-weight:750}.topic a{color:var(--accent2)}.topic hr{margin:36px 0;border:0;border-top:1px solid var(--line)}.topic blockquote{margin:22px 0;padding:14px 20px;border-left:3px solid var(--accent);background:var(--soft)}.topic code{padding:.15em .4em;border-radius:4px;background:#ebe6da;color:#b5482c;font:87% ui-monospace,SFMono-Regular,Consolas,monospace}.topic pre{overflow:auto;margin:18px 0 24px;padding:19px 22px;border-radius:7px;background:var(--code);color:#e8ecec;line-height:1.55}.topic pre code{padding:0;background:transparent;color:inherit}.topic table{width:100%;border-collapse:collapse;margin:20px 0 27px;font-size:13px;line-height:1.5}.topic th,.topic td{padding:11px 13px;border:1px solid var(--line);text-align:left;vertical-align:top}.topic th{background:var(--soft);font-size:12px}.topic tr:nth-child(even) td{background:rgba(231,225,211,.25)}.complete-button{display:flex;align-items:center;gap:8px;margin:32px 0 0 auto;border:1px solid var(--line);border-radius:18px;padding:7px 13px;background:transparent;color:var(--muted);font:600 11px inherit;cursor:pointer}.complete-button span{width:14px;height:14px;border:1px solid var(--muted);border-radius:50%}.complete-button.done{color:var(--accent2);border-color:var(--accent2)}.complete-button.done span{display:grid;place-items:center;background:var(--accent2);color:white;border-color:var(--accent2)}.complete-button.done span::after{content:"✓";font-size:9px}.loading{display:grid;place-items:center;min-height:300px;color:var(--muted)}.loading span{width:30px;height:30px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.loading p{margin-top:-90px}.no-results{text-align:center;padding:60px}.no-results strong{font:32px Georgia,serif}.no-results p{color:var(--muted)}mark{padding:0 2px;background:#ffd889;color:#172b3a}
.to-top{position:fixed;z-index:600;right:24px;bottom:24px;width:44px;height:44px;border:0;border-radius:50%;background:var(--accent);color:white;box-shadow:var(--shadow);font-size:19px;cursor:pointer;opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s}.to-top.visible{opacity:1;transform:none;pointer-events:auto}footer{margin-left:var(--sidebar);display:flex;justify-content:space-between;padding:30px clamp(30px,7vw,90px);border-top:1px solid var(--line);color:var(--muted);font-size:12px}footer p{margin:0}
body.dark{--ink:#e9ecec;--muted:#9ca9af;--paper:#101a21;--card:#17242c;--line:#30404a;--accent:#ef7c57;--accent2:#72bdb5;--soft:#22323b;--code:#091116;--shadow:0 18px 50px rgba(0,0,0,.25);color-scheme:dark}body.dark .topbar{background:rgba(16,26,33,.92)}body.dark .brand-mark{background:var(--accent);color:#fff}body.dark .hero{background:#0b151c}body.dark .topic code{background:#263842;color:#ff9e80}body.dark .topic tr:nth-child(even) td{background:rgba(255,255,255,.018)}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:1050px){:root{--sidebar:260px}.hero{grid-template-columns:1fr;padding:65px 55px}.hero-card{display:none}.quick-map{grid-template-columns:repeat(2,1fr)}.quick-map a:nth-child(2){border-right:0}.quick-map a:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:760px){:root{--top:65px}.topbar{padding:0 15px}.print-button{display:none}.menu-button{display:flex}.sidebar{width:min(88vw,330px);top:0;z-index:950;padding-top:25px;transform:translateX(-102%);box-shadow:20px 0 50px rgba(0,0,0,.18);transition:transform .25s}.sidebar.open{transform:none}.backdrop{position:fixed;z-index:940;inset:0;display:block;border:0;background:rgba(6,15,20,.5);opacity:0;pointer-events:none;transition:opacity .25s}.backdrop.open{opacity:1;pointer-events:auto}main,footer{margin-left:0}.hero{min-height:520px;padding:66px 24px}.hero h1{font-size:clamp(45px,14vw,65px)}.hero-lead{font-size:15px}.quick-map{grid-template-columns:1fr 1fr}.quick-map a{min-height:125px;padding:23px 18px}.quick-map strong{font-size:21px}.content-shell{padding:35px 14px 75px}.document>.topic{padding:31px 23px;margin-bottom:22px}.document>.topic::before{top:27px;height:38px}.topic>h2{font-size:30px}.topic table{display:block;overflow-x:auto;white-space:normal}.topic pre{margin-left:-10px;margin-right:-10px;padding:16px;font-size:12px}footer{display:block;text-align:center;padding:25px}footer p+ p{margin-top:5px}}
@media print{.reading-progress,.topbar,.sidebar,.backdrop,.hero-actions,.quick-map,.complete-button,.to-top,footer{display:none!important}body{background:#fff;color:#111;font-size:10pt}main{margin:0;padding:0}.hero{display:block;min-height:0;padding:15mm 12mm;background:#fff;color:#111;border-bottom:2px solid #111}.hero h1{font-size:36pt}.hero h1 em,.eyebrow{color:#555}.hero-lead{color:#333}.hero-card{display:none}.content-shell{max-width:none;padding:8mm 12mm}.document>.topic{break-before:page;margin:0;padding:0;border:0;box-shadow:none}.document>.topic:first-child{break-before:auto}.document>.topic::before{display:none}.topic>h2{font-size:23pt}.topic h3{color:#333}.topic pre{white-space:pre-wrap;background:#eee;color:#111;border:1px solid #bbb}.topic table{font-size:8pt}.no-results{display:none}}