:root{--bg:#070706;--bg2:#0b0b09;--paper:#e8e2d1;--muted:#a39c8b;--gold:#c9a451;--gold2:#e1c879;--dim:#66552f;--line:rgba(201,164,81,.36);--line2:rgba(201,164,81,.16);--line3:rgba(201,164,81,.08);--max:860px;--rail:248px;--top:74px;--serif:"Iowan Old Style","Palatino Linotype","Book Antiqua",Palatino,"Times New Roman",serif;--sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:radial-gradient(circle at 18% 2%,rgba(108,30,17,.26),transparent 28%),radial-gradient(circle at 88% 66%,rgba(61,91,101,.08),transparent 22%),linear-gradient(180deg,#070706 0%,#080807 46%,#060607 100%);color:var(--paper);font-family:var(--serif);font-size:17px;line-height:1.68;min-height:100vh;overflow-x:hidden;position:relative}
body:before{content:"";position:fixed;z-index:0;inset:var(--top) 0 0 var(--rail);pointer-events:none;background:url('plaque-gold.png') center 34%/min(1120px,84vw) auto no-repeat;opacity:.105;mix-blend-mode:screen;filter:contrast(1.04) drop-shadow(0 0 28px rgba(201,164,81,.04))}
::selection{background:var(--gold);color:#111}a{color:inherit}button,input{font:inherit}
.topbar{height:var(--top);position:fixed;z-index:40;left:0;right:0;top:0;background:rgba(7,7,6,.93);backdrop-filter:blur(18px);border-bottom:1px solid var(--line2);display:flex;align-items:center;padding:0 28px 0 31px}.brand{display:flex;align-items:baseline;gap:15px;text-decoration:none;min-width:var(--rail)}.brand-word{font-family:var(--serif);font-weight:700;font-size:20px;letter-spacing:.15em;color:var(--paper)}.brand-sub{font-family:var(--sans);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}.topnav{margin-left:auto;display:flex;align-items:center;gap:25px}.topnav a{font-family:var(--sans);font-size:11px;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--muted);position:relative}.topnav a:hover,.topnav a.active{color:var(--gold2)}.topnav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-12px;border-bottom:1px solid var(--gold)}.icon-btn,.mobile-menu{border:0;background:transparent;color:var(--gold2);cursor:pointer}.icon-btn{font-size:24px}.mobile-menu{display:none;font-size:22px}
.rail{position:fixed;z-index:30;top:var(--top);left:0;bottom:0;width:var(--rail);border-right:1px solid var(--line2);background:rgba(7,7,6,.78);backdrop-filter:blur(10px);padding:33px 26px 26px 31px;display:flex;flex-direction:column}.seal{font-family:var(--serif);font-size:24px;letter-spacing:.18em;color:var(--gold);white-space:nowrap}.seal span{margin:0 8px}.rail-rule{width:68px;height:1px;background:var(--gold);margin:19px 0 24px;position:relative}.rail-rule:before,.rail-rule:after{content:"";position:absolute;top:-3px;width:7px;height:7px;border:1px solid var(--gold);border-radius:50%;background:var(--bg)}.rail-rule:before{left:0}.rail-rule:after{right:0}.rail nav{overflow:auto;scrollbar-width:thin;scrollbar-color:var(--dim) transparent;padding-right:6px}.rail-group{font-family:var(--sans);font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin:19px 0 8px}.rail a{display:block;text-decoration:none;color:var(--muted);font-family:var(--sans);font-size:11px;line-height:1.35;padding:7px 0;border-left:1px solid transparent;padding-left:10px}.rail a:hover,.rail a.active{color:var(--gold2);border-left-color:var(--gold)}.rail-footer{margin-top:auto;font-family:var(--sans);font-size:9px;letter-spacing:.18em;color:var(--dim);line-height:1.7}.rail-footer b{font-weight:500;color:var(--gold);display:block}
#app{min-height:100vh;padding:calc(var(--top) + 62px) 48px 90px calc(var(--rail) + 48px);position:relative;z-index:2}.content-shell{max-width:var(--max);margin:0 auto}.content-wide{max-width:1120px;margin:0 auto}.eyebrow{font-family:var(--sans);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:15px}.display{font-weight:500;font-size:clamp(44px,7vw,88px);line-height:.98;letter-spacing:-.035em;margin:0;color:var(--paper);text-shadow:0 2px 24px rgba(0,0,0,.45)}.display em{font-weight:400;color:var(--gold2)}.display .longword{display:inline-block}.lede{font-size:clamp(20px,2.7vw,29px);line-height:1.42;color:#d6cfbd;max-width:760px;margin:27px 0 0}.hero{min-height:calc(100vh - var(--top) - 100px);display:grid;align-items:center;position:relative;padding:60px 0 90px;overflow:visible}.hero-copy{position:relative;z-index:2;max-width:780px}.hero-kicker{display:flex;gap:13px;align-items:center;margin-bottom:27px;color:var(--gold);font-family:var(--sans);font-size:10px;letter-spacing:.2em;text-transform:uppercase}.hero-kicker:before{content:"";width:54px;border-top:1px solid var(--gold)}.hero-actions{display:flex;gap:13px;margin-top:35px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border:1px solid var(--line);text-decoration:none;font-family:var(--sans);font-size:10px;text-transform:uppercase;letter-spacing:.16em;color:var(--gold2);background:rgba(12,12,10,.54);backdrop-filter:blur(5px)}.btn:hover{border-color:var(--gold);background:rgba(201,164,81,.07)}.btn.primary{background:var(--gold);color:#10100e;border-color:var(--gold)}
.question-panel{margin:30px 0 50px;border-left:1px solid var(--gold);padding:5px 0 5px 24px;font-size:23px;line-height:1.5;color:#ddd6c4}.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line2);margin:55px 0;background:rgba(7,7,6,.42);backdrop-filter:blur(4px)}.metric{padding:22px;border-right:1px solid var(--line2)}.metric:last-child{border-right:0}.metric b{display:block;font-size:28px;font-weight:400;color:var(--gold2)}.metric span{font-family:var(--sans);font-size:9px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
.doc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:34px 0 65px}.doc-card{min-height:240px;border:1px solid var(--line2);padding:25px;position:relative;text-decoration:none;overflow:hidden;background:rgba(9,9,7,.78);backdrop-filter:blur(5px)}.doc-card:before{content:"";position:absolute;inset:12px;border:1px solid rgba(201,164,81,.08);pointer-events:none}.doc-card:hover{border-color:var(--gold)}.roman{font-size:48px;color:var(--gold);font-weight:400;line-height:1}.doc-card h3{font-size:22px;font-weight:500;margin:55px 0 5px}.doc-card p{font-family:var(--sans);font-size:12px;color:var(--muted);line-height:1.6;margin:0}.route-line{height:1px;background:linear-gradient(90deg,transparent,var(--line) 9%,var(--line) 91%,transparent);position:relative;margin:80px 0}.route-line:before,.route-line:after{content:"";position:absolute;top:-3px;width:7px;height:7px;border:1px solid var(--gold);border-radius:50%;background:var(--bg)}.route-line:before{left:0}.route-line:after{right:0}
.reader-head{border-bottom:1px solid var(--line2);padding-bottom:24px;margin-bottom:32px;position:relative}.reader-head:before,.reader-head:after,.primer-intro:before,.primer-intro:after{content:"";position:absolute;bottom:-4px;width:7px;height:7px;border:1px solid var(--gold);border-radius:50%;background:var(--bg)}.reader-head:before,.primer-intro:before{left:0}.reader-head:after,.primer-intro:after{right:0}.reader-head h1{font-size:clamp(32px,4vw,54px);line-height:1.1;margin:4px 0 8px;font-weight:500}.reader-meta{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;font-family:var(--sans);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.reader-meta a{text-decoration:none;color:var(--gold)}.progress{height:1px;background:rgba(201,164,81,.12);margin-top:22px;position:relative}.progress i{display:block;height:1px;background:var(--gold);transition:width .3s}.doc-content{min-height:55vh}.doc-content h1,.doc-content h2{font-weight:500;line-height:1.16;color:var(--gold2)}.doc-content h1{font-size:35px;margin:1.5em 0 .5em}.doc-content h2{font-size:31px;margin:0 0 .65em}.doc-content h3{font-family:var(--sans);font-weight:600;font-size:16px;line-height:1.35;color:var(--gold);margin:2em 0 .7em;letter-spacing:.015em}.doc-content p{margin:.8em 0}.doc-content strong{color:#f0ead9}.doc-content em{color:#d6c994}.doc-content blockquote{margin:1.8em 0;padding:7px 0 7px 23px;border-left:1px solid var(--gold);color:#e3d6ad;font-size:19px}.doc-content blockquote p{margin:0}.doc-content hr{border:0;border-top:1px solid var(--line2);margin:40px 0}.doc-content ul,.doc-content ol{padding-left:1.3em}.doc-content li{margin:.32em 0}.doc-content li::marker{color:var(--gold)}.doc-content table{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:12px;line-height:1.5;margin:25px 0;display:block;overflow:auto;background:rgba(7,7,6,.22)}.doc-content th,.doc-content td{padding:10px 12px;border:1px solid var(--line2);vertical-align:top;min-width:130px}.doc-content th{color:var(--gold2);font-weight:600;background:rgba(201,164,81,.045)}.doc-content code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--gold2);font-size:.88em}.doc-content a{color:var(--gold2);text-underline-offset:3px;overflow-wrap:anywhere}.doc-content math[display="block"]{display:block;overflow-x:auto;overflow-y:hidden;padding:14px 0;color:var(--paper);font-size:1.02em}.doc-content math{color:var(--paper)}.doc-nav{border-top:1px solid var(--line2);margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:18px}.doc-nav a{text-decoration:none;font-family:var(--sans);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold2);max-width:45%}.doc-nav a:last-child{text-align:right}.part-stamp{font-family:var(--sans);font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-bottom:8px}
.primer-intro{max-width:730px;margin-bottom:40px;border-bottom:1px solid var(--line2);padding-bottom:22px;position:relative}.primer-intro h1{font-size:clamp(40px,5vw,66px);font-weight:500;line-height:1.03;margin:0 0 20px}.numbering-note{margin:-8px 0 9px;font-family:var(--sans);font-size:11px;letter-spacing:.04em;color:var(--muted)}.primer-grid{display:block}.primer-menu{display:none;position:sticky;top:calc(var(--top) + 34px);height:max-content}.primer-menu a{display:block;padding:8px 0;text-decoration:none;font-family:var(--sans);font-size:11px;color:var(--muted);border-bottom:1px solid var(--line2)}.primer-menu a.active,.primer-menu a:hover{color:var(--gold2)}.primer-page{min-width:0}.translation-tag{font-family:var(--sans);font-size:9px;text-transform:uppercase;letter-spacing:.18em;color:var(--gold);margin-bottom:20px}
.atlas-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:35px}.plate{border:1px solid var(--line2);background:rgba(8,8,6,.78);backdrop-filter:blur(5px);padding:16px 16px 20px;position:relative;overflow:hidden;cursor:zoom-in;transition:border-color .18s ease,transform .18s ease,background .18s ease}.plate:after{content:"";position:absolute;inset:8px;border:1px solid rgba(201,164,81,.06);pointer-events:none}.plate:hover,.plate:focus-visible{border-color:var(--gold);background:rgba(10,10,8,.9);transform:translateY(-1px);outline:none}.plate h3{font-weight:500;font-size:21px;margin:4px 8px}.plate p{font-family:var(--sans);font-size:11px;color:var(--muted);margin:0 8px 10px;line-height:1.5}.plate svg{width:100%;height:auto;display:block}.plate-expand{position:absolute;right:20px;top:18px;font-family:var(--sans);font-size:15px;color:var(--gold);opacity:.7}.etched{fill:none;stroke:var(--gold);stroke-width:1.5}.etched text{fill:var(--gold2);stroke:none;text-anchor:middle;font-family:var(--serif);font-size:22px}.etched .label{fill:var(--muted);font-family:var(--sans);font-size:12px}.etched .micro{fill:#7d735d;font-family:var(--sans);font-size:10px;letter-spacing:.06em}.etched .big{font-size:30px}.etched .thin{stroke:var(--dim);stroke-width:1}.etched .dash{stroke-dasharray:5 6}.etched polygon{fill:var(--gold);stroke:none}
.atlas-lightbox{position:fixed;z-index:130;inset:0;background:rgba(0,0,0,.78);backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:center;padding:clamp(18px,4vw,54px);opacity:0;visibility:hidden;transition:opacity .18s ease,visibility .18s ease}.atlas-lightbox.open{opacity:1;visibility:visible}.atlas-lightbox-card{width:min(1180px,96vw);max-height:92vh;overflow:auto;position:relative;border:1px solid var(--gold);background:linear-gradient(180deg,rgba(10,10,9,.98),rgba(5,5,6,.98));padding:clamp(18px,3vw,34px);box-shadow:0 30px 90px rgba(0,0,0,.6)}.atlas-lightbox-card:before{content:"";position:absolute;inset:10px;border:1px solid rgba(201,164,81,.08);pointer-events:none}.atlas-lightbox-close{position:sticky;z-index:3;float:right;top:0;margin:-8px -4px 0 16px;border:1px solid var(--line);background:#090908;color:var(--gold2);width:40px;height:40px;border-radius:50%;font-size:25px;line-height:1;cursor:pointer}.atlas-lightbox-content{clear:both}.atlas-lightbox-heading{padding:0 48px 6px 4px}.atlas-lightbox-heading h3{font-size:clamp(25px,3vw,38px);font-weight:500;margin:0 0 6px;color:var(--gold2)}.atlas-lightbox-heading p{font-family:var(--sans);font-size:12px;color:var(--muted);margin:0}.atlas-lightbox svg{width:100%;height:auto;max-height:72vh;display:block;margin:6px auto 0}.lightbox-open{overflow:hidden}
.instruments{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:38px}.instrument{border:1px solid var(--line2);padding:22px;background:rgba(9,9,7,.78);backdrop-filter:blur(5px)}.instrument h3{margin:0 0 5px;font-weight:500;color:var(--gold2)}.instrument p{font-family:var(--sans);font-size:11px;color:var(--muted)}.instrument label{display:grid;grid-template-columns:1fr auto;gap:10px;font-family:var(--sans);font-size:11px;color:var(--muted);margin:18px 0 4px}.instrument input[type=range]{width:100%;accent-color:var(--gold)}.instrument-output{margin-top:20px;border-top:1px solid var(--line2);padding-top:15px;font-size:26px;color:var(--gold2)}.bars{display:flex;gap:8px;height:110px;align-items:flex-end;margin-top:20px}.bar{flex:1;border:1px solid var(--line);background:rgba(201,164,81,.12);min-height:3px;position:relative}.bar span{position:absolute;bottom:-24px;left:0;right:0;text-align:center;font-family:var(--sans);font-size:9px;color:var(--muted)}
.search-panel{position:fixed;z-index:100;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(12px);display:none;align-items:flex-start;justify-content:center;padding:10vh 22px}.search-panel.open{display:flex}.search-box{width:min(760px,100%);background:#0b0b09;border:1px solid var(--gold);padding:20px}.search-head{display:flex;justify-content:space-between;align-items:center;font-family:var(--sans);font-size:11px;text-transform:uppercase;letter-spacing:.16em;color:var(--gold)}.search-head button{background:transparent;border:0;color:var(--gold2);font-size:28px;cursor:pointer}.search-box input{width:100%;margin:16px 0;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--paper);padding:10px 2px;outline:none;font-size:20px}.search-results{max-height:55vh;overflow:auto}.search-result{display:block;text-decoration:none;padding:12px 0;border-bottom:1px solid var(--line2)}.search-result b{font-weight:500;color:var(--gold2)}.search-result span{display:block;font-family:var(--sans);font-size:11px;color:var(--muted);margin-top:4px}.search-empty{font-family:var(--sans);font-size:12px;color:var(--muted);padding:20px 0}
#starfield{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.48;background-image:radial-gradient(circle at 12% 18%,rgba(225,200,121,.5) 0 1px,transparent 1.5px),radial-gradient(circle at 77% 8%,rgba(225,200,121,.28) 0 1px,transparent 1.5px),radial-gradient(circle at 66% 64%,rgba(225,200,121,.2) 0 1px,transparent 1.5px),radial-gradient(circle at 32% 73%,rgba(225,200,121,.16) 0 1px,transparent 1.5px);background-size:310px 310px,410px 410px,530px 530px,690px 690px}.frame{position:fixed;z-index:1;inset:12px;pointer-events:none;border:1px solid rgba(201,164,81,.12)}.frame i{position:absolute;width:18px;height:18px}.frame i:nth-child(1){left:-1px;top:-1px;border-left:1px solid var(--gold);border-top:1px solid var(--gold)}.frame i:nth-child(2){right:-1px;top:-1px;border-right:1px solid var(--gold);border-top:1px solid var(--gold)}.frame i:nth-child(3){left:-1px;bottom:-1px;border-left:1px solid var(--gold);border-bottom:1px solid var(--gold)}.frame i:nth-child(4){right:-1px;bottom:-1px;border-right:1px solid var(--gold);border-bottom:1px solid var(--gold)}.mobile-tabs{display:none}
@media(max-width:980px){:root{--rail:0px}.brand{min-width:0}.brand-sub{display:none}.rail{transform:translateX(-100%);transition:transform .25s;width:290px;top:var(--top);z-index:60}.rail.open{transform:none;box-shadow:20px 0 60px #000}.mobile-menu{display:block;margin-left:auto}.topnav{display:none}body:before{inset:var(--top) 0 0 0;background-size:min(1050px,112vw) auto;background-position:center 27%;opacity:.09}#app{padding-left:32px;padding-right:32px}.doc-grid{grid-template-columns:1fr 1fr}.primer-grid{grid-template-columns:1fr}.primer-menu{position:static;display:flex;gap:8px;overflow-x:auto;padding-bottom:10px}.primer-menu a{white-space:nowrap;padding:8px 12px;border:1px solid var(--line2)}.atlas-grid{grid-template-columns:1fr}.mobile-tabs{display:flex;position:fixed;z-index:45;left:18px;right:18px;bottom:14px;height:52px;background:rgba(10,10,8,.96);border:1px solid var(--line);backdrop-filter:blur(15px);justify-content:space-around;align-items:center}.mobile-tabs a{font-family:var(--sans);font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-decoration:none}.mobile-tabs a.active{color:var(--gold2)}}
@media(max-width:640px){body{font-size:16px;line-height:1.62;overflow-x:hidden}body:before{background-size:156vw auto;background-position:center 12rem;opacity:.072}.topbar{height:62px;padding:0 22px}.brand-word{font-size:18px}.frame{inset:7px}.hero{min-height:auto;padding:38px 0 50px}.display{font-size:clamp(40px,12.3vw,49px);max-width:100%}.display .longword{font-size:.78em;letter-spacing:-.045em}.lede{font-size:20px;max-width:100%}.question-panel{font-size:19px}.metric-strip{grid-template-columns:1fr 1fr}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line2)}#app{padding:103px 20px 95px}.doc-grid{grid-template-columns:1fr}.doc-card{min-height:190px}.roman{font-size:38px}.doc-card h3{margin-top:38px}.reader-head h1{font-size:34px}.doc-content h2{font-size:28px}.doc-content h3{font-size:15px}.doc-content blockquote{font-size:17px}.doc-content table{font-size:11px}.doc-nav a{font-size:9px}.atlas-grid{gap:12px}.plate{padding:10px 10px 17px}.instruments{grid-template-columns:1fr}.hero-actions .btn{width:100%}.seal{font-size:22px}.atlas-lightbox{padding:10px}.atlas-lightbox-card{width:100%;max-height:94vh;padding:16px 12px 18px}.atlas-lightbox-heading{padding:0 44px 8px 2px}.atlas-lightbox-heading h3{font-size:25px}.atlas-lightbox svg{max-height:none}.mobile-tabs{left:10px;right:10px;bottom:9px}}
@media(max-width:390px){#app{padding-left:17px;padding-right:17px}.display{font-size:40px}.display .longword{font-size:.74em}.lede{font-size:19px}.reader-head h1{font-size:31px}.primer-intro h1{font-size:39px}.mobile-tabs a{font-size:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}