/* Editorial system */
:root{
  --navy:#112b48;
  --navy-2:#0b2038;
  --ink:#17222c;
  --paper:#f4f0e7;
  --cream:#fffdf7;
  --gold:#d5a52a;
  --gold-2:#f0c653;
  --orange:#f18a18;
  --red:#d64b43;
  --blue:#8fb9e6;
  --line:rgba(17,43,72,.18);
  --white:#fff;
  --muted:#66717c;
  --serif:"Georgia",serif;
  --display:"Barlow Condensed","Arial Narrow",sans-serif;
  --body:"Inter",system-ui,sans-serif;
  --mono:"IBM Plex Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55}
button,a{font:inherit}
button{cursor:pointer}
.skip-link{position:fixed;left:1rem;top:-5rem;background:var(--gold);color:var(--navy);padding:.7rem 1rem;z-index:1000}
.skip-link:focus{top:1rem}
.topbar{position:fixed;z-index:50;left:0;right:0;top:0;height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:rgba(17,43,72,.94);color:white;border-bottom:1px solid rgba(255,255,255,.12);backdrop-filter:blur(8px)}
.brand-mark,.topbar-title{font:500 12px var(--mono);letter-spacing:.04em}
.brand-mark span{color:var(--gold);margin:0 .3em}
.topbar-actions{display:flex;gap:6px}
.icon-btn{border:1px solid rgba(255,255,255,.25);background:transparent;color:white;padding:.38rem .55rem;font:500 10px var(--mono);letter-spacing:.08em}
.icon-btn:hover,.icon-btn:focus-visible{border-color:var(--gold);color:var(--gold)}
.scene{min-height:100svh;padding:100px 7vw 90px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.scene-dark{background:var(--navy);color:var(--white)}
.scene-paper{background:#e9e3d6}
.scene:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(90deg,transparent 0,transparent calc(100% - 1px),rgba(17,43,72,.04) calc(100% - 1px));background-size:8.333% 100%}
.section-kicker,.eyebrow{font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:0 0 1.2rem}
h1,h2,h3{font-family:var(--display);line-height:.92;margin:0 0 1.25rem;font-weight:600}
h1{font-size:clamp(4rem,10vw,9.5rem);letter-spacing:-.035em}
h2{font-size:clamp(3rem,6.5vw,7rem);letter-spacing:-.025em}
h3{font-size:1.6rem}
h1 em,h2 span{color:var(--gold);font-style:normal}
p{max-width:68ch}
.lead{font-size:clamp(1.05rem,1.6vw,1.4rem);max-width:48ch}
.cover-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:5vw;align-items:center}
.scene-cover{background:var(--navy);color:white}
.cover-copy{position:relative;z-index:2}
.cover-sub{font:500 clamp(1.2rem,2.3vw,2rem) var(--display);color:var(--orange);margin:-.3rem 0 2rem}
.meta{display:grid;gap:.55rem;border-top:1px solid rgba(255,255,255,.2);padding-top:1rem;font:400 12px var(--mono);color:#dce5ee}
.cover-art{margin:0;position:relative}
.cover-art img{width:100%;display:block;filter:saturate(.85) contrast(1.03);mix-blend-mode:screen;opacity:.9}
.cover-art figcaption,.source-plate figcaption{font:10px var(--mono);color:var(--muted);margin-top:.45rem}
.scene-dark .source-plate figcaption{color:#9fb0c1}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:7vw;align-items:center}
.source-plate{margin:0;max-width:620px}
.source-plate img{width:100%;display:block;border:1px solid var(--line);box-shadow:10px 10px 0 rgba(213,165,42,.12)}
.source-plate.wide{max-width:920px;align-self:center;margin-top:3rem}
.question{margin-top:2rem;border-left:5px solid var(--gold);padding:.8rem 1.2rem;font:600 1.3rem var(--display);max-width:30ch}
.heritage-types{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;margin-top:4rem;border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}
.heritage-types article{padding:1.5rem 1.25rem 1.7rem;border-right:1px solid rgba(255,255,255,.15);min-height:250px}
.heritage-types article:last-child{border-right:0}
.num,.criterion-code{font:500 11px var(--mono);color:var(--gold)}
.heritage-types h3{font-size:1.8rem;margin:.9rem 0}
.heritage-types p{font-size:.9rem;color:#c7d3de}
.criteria-intro{display:grid;grid-template-columns:220px 1fr;gap:5vw;align-items:center}
.giant{font:600 12rem/.7 var(--display);color:var(--gold);letter-spacing:-.06em}
.giant span{font-size:4rem;vertical-align:top;color:var(--ink)}
.criteria-head{display:flex;justify-content:space-between;gap:4rem;align-items:end}
.criteria-head p{color:#aebdcc;max-width:34ch}
.criteria-layout{display:grid;grid-template-columns:330px 1fr;gap:2rem;margin-top:3rem}
.criteria-nav{display:grid;grid-template-columns:1fr 1fr;gap:6px;align-content:start}
.criterion{background:transparent;color:#d8e0e7;border:1px solid rgba(255,255,255,.16);padding:.8rem;text-align:left;min-height:56px;font-size:.8rem}
.criterion b{color:var(--gold);margin-right:.3rem}
.criterion.active,.criterion:hover,.criterion:focus-visible{background:#fff;color:var(--navy);border-color:var(--gold)}
.criterion-detail{border-top:4px solid var(--gold);background:#f7f4ec;color:var(--ink);padding:2rem 2.2rem;min-height:330px}
.criterion-detail h3{font-size:2.5rem}
.detail-grid{display:grid;grid-template-columns:1.7fr .8fr;gap:3rem;border-top:1px solid var(--line);padding-top:1.2rem}
.detail-grid span,.tip b{font:500 10px var(--mono);letter-spacing:.1em;color:var(--gold)}
.example{border-left:1px solid var(--line);padding-left:1.5rem}
.example p{font-family:var(--display);font-size:1.5rem}
.accent-heading{font:600 1.45rem var(--display);color:var(--orange);margin:2rem 0 .4rem}
ul{padding-left:1.2rem}
.tip-stack{display:grid;gap:1rem}
.tip{background:var(--cream);color:var(--ink);padding:1.25rem 1.3rem;border-left:5px solid var(--gold);display:grid;gap:.25rem;box-shadow:0 5px 0 rgba(17,43,72,.08)}
.tip strong{font-family:var(--display);font-size:1.4rem}
.tip span{font-size:.9rem}
.heritage-link{display:inline-block;color:var(--navy);background:var(--gold);padding:.9rem 1rem;text-decoration:none;font:600 11px var(--mono)}
.evidence-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:3rem}
.evidence-grid article{border-top:4px solid var(--gold);padding:1.2rem;background:rgba(255,255,255,.4)}
.evidence-grid span,.mistakes span,.roles:before{font:500 10px var(--mono);color:var(--red)}
.evidence-grid h3,.mistakes h3,.roles h3{font-size:1.8rem;margin:.6rem 0}
.pullquote{font:600 clamp(2rem,4vw,4rem) var(--display);color:var(--navy);margin-top:4rem}
.research-layout{display:grid;grid-template-columns:1fr 420px;gap:7vw;align-items:center}
.process-list{border-top:1px solid rgba(255,255,255,.2);margin-top:3rem}
.process-list>div{display:grid;grid-template-columns:55px 1fr;gap:1rem;padding:1.3rem 0;border-bottom:1px solid rgba(255,255,255,.15)}
.process-list b{font:500 12px var(--mono);color:var(--gold)}
.process-list strong{font-family:var(--display);font-size:1.7rem}
.process-list p{margin:.3rem 0 0;color:#aebdcc;font-size:.9rem}
.source-plate.tall{max-width:420px}
.mistakes{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:3rem}
.mistakes article{border:1px solid var(--line);padding:1.25rem;min-height:190px;background:rgba(255,255,255,.28)}
.mistakes span{display:block;margin-bottom:1rem}
.mistakes h3{font-size:1.7rem}
.mistakes p{font-size:.9rem}
.solution{margin:2rem auto 0;max-width:850px;border:2px solid var(--gold);padding:1rem 1.2rem;background:var(--cream)}
.solution b{color:var(--red);font:600 10px var(--mono);margin-right:1rem}
.flow{margin-top:3rem;display:grid;gap:1.2rem}
.flow-row{display:flex;align-items:stretch;gap:12px}
.flow-node{flex:1;border:1px solid rgba(255,255,255,.2);padding:1rem;background:#183a5e;font-family:var(--display);font-size:1.25rem;display:flex;flex-direction:column;justify-content:center}
.flow-node small{font:400 .72rem/1.4 var(--body);color:#c4d0db;margin-top:.4rem}
.flow-node.emphasis{border-color:var(--gold);background:#254b72}
.flow-arrow{display:grid;place-items:center;color:var(--gold);font-size:1.5rem}
.branch{display:flex;flex-direction:column;gap:5px;justify-content:center}
.branch span{font:600 9px var(--mono);padding:.5rem;background:#f0c653;color:var(--navy);white-space:nowrap}
.micro-note{font:10px var(--mono);color:var(--muted);margin-top:1rem}
.scene-dark .micro-note{color:#91a5b8}
.site-process{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:3rem}
.site-step{border-top:4px solid var(--gold);padding:1rem;background:rgba(255,255,255,.55);min-height:130px}
.site-step b{font:500 10px var(--mono);color:var(--red)}
.site-step span{display:block;font-family:var(--display);font-size:1.25rem;margin-top:.5rem}
.important-box{margin-top:1.5rem;background:var(--navy);color:white;padding:1rem 1.3rem;display:flex;gap:1rem;align-items:baseline}
.important-box strong{color:var(--gold);font-family:var(--display);font-size:1.5rem}
.important-box p{margin:0;font-size:.9rem}
.object-process{max-width:1000px;width:100%;margin:auto;text-align:center}
.object-start{display:inline-grid;padding:1.1rem 2rem;border:2px solid var(--navy);background:var(--gold);font-family:var(--display);font-size:1.6rem}
.object-start small{font:400 .7rem var(--mono)}
.object-branches{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:2rem 0;position:relative}
.object-branches:after{content:"";position:absolute;left:10%;right:10%;bottom:-1rem;border-bottom:2px solid var(--gold)}
.object-branches div{padding:1rem;background:white;border-top:4px solid var(--orange);font-size:.82rem}
.object-step{margin:1rem auto;padding:1rem 1.4rem;background:white;border-left:5px solid var(--navy);max-width:760px}
.object-step.accent{border-left-color:var(--red)}
.roles{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:3rem}
.roles article{padding:1.4rem;background:var(--cream);border-top:5px solid var(--gold)}
.roles h3{font-size:1.9rem}
.roles p{font-size:.9rem}
.after-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:3rem}
.after-grid article{padding:1.5rem;border-top:4px solid var(--gold);background:#183a5e}
.after-grid article:nth-child(4),.after-grid article:nth-child(5){grid-column:span 1}
.after-grid span{font:500 10px var(--mono);color:var(--gold)}
.after-grid h3{font-size:1.8rem;margin:.6rem 0}
.after-grid p{font-size:.9rem;color:#c8d4df}
.scene-data{background:#ded7ca}
.big-number{font-size:clamp(5rem,13vw,12rem);line-height:.75;color:var(--navy);font-family:var(--display);letter-spacing:-.06em}
.data-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:3rem 0}
.data-strip div{background:var(--navy);color:white;padding:1.2rem}
.data-strip b{font:600 3.2rem/.8 var(--display);color:var(--gold)}
.data-strip span{display:block;font:500 9px var(--mono);margin-top:.8rem}
.bar-chart{display:grid;gap:.7rem;max-width:900px}
.bar-row{display:grid;grid-template-columns:140px 1fr 55px 120px;gap:10px;align-items:center;font-size:.8rem}
.bar-row>span{font-family:var(--display);font-size:1.15rem}
.bar{height:16px;background:rgba(17,43,72,.1);overflow:hidden}
.bar i{display:block;height:100%;background:var(--gold)}
.bar-row b{font:600 1.3rem var(--display)}
.bar-row small{font:9px var(--mono);color:var(--muted)}
.scene-conclusion{background:var(--navy);color:white;text-align:center;align-items:center}
.scene-conclusion h2{max-width:1000px}
.conclusion-list{list-style:none;padding:0;margin:4rem 0 3rem;width:min(800px,100%);display:grid;gap:1rem}
.conclusion-list li{display:grid;grid-template-columns:45px 1fr;align-items:center;text-align:left;border-bottom:1px solid rgba(255,255,255,.16);padding-bottom:1rem}
.conclusion-list span{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--gold);color:var(--navy);font:600 12px var(--mono)}
.conclusion-list b{font:500 1.5rem var(--display)}
.thanks{font:600 1.2rem var(--display);color:var(--gold);letter-spacing:.04em}
.thanks i{font-style:normal;color:var(--orange);padding:0 .5rem}
.controls{position:fixed;z-index:60;left:28px;right:28px;bottom:18px;display:flex;align-items:center;gap:12px;color:white}
.controls button{width:38px;height:32px;border:1px solid rgba(255,255,255,.35);background:rgba(17,43,72,.9);color:white}
.controls button:hover,.controls button:focus-visible{border-color:var(--gold);color:var(--gold)}
.progress-wrap{height:2px;background:rgba(255,255,255,.25);flex:1}
#progress{height:100%;width:0;background:var(--gold);transition:width .25s ease}
#counter{font:500 10px var(--mono);background:rgba(17,43,72,.9);padding:.5rem}
dialog{border:0;padding:0;max-width:none;width:100%;height:100%;background:rgba(7,18,30,.97);color:white}
dialog::backdrop{background:#07121e}
.overview-inner{padding:80px 7vw 60px;position:relative}
.close{position:absolute;right:6vw;top:50px;background:transparent;border:1px solid rgba(255,255,255,.3);color:white;font-size:1.5rem;width:40px;height:40px}
.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:2rem}
.overview-item{border:1px solid rgba(255,255,255,.16);padding:1rem;min-height:110px;text-align:left;background:#102b47;color:white}
.overview-item:hover,.overview-item:focus-visible{border-color:var(--gold)}
.overview-item b{font:500 10px var(--mono);color:var(--gold)}
.overview-item span{display:block;font-family:var(--display);font-size:1.4rem;margin-top:.5rem}
.key-help{font:10px var(--mono);color:#92a5b7;margin-top:2rem}
@media (max-width:1100px){
  .heritage-types{grid-template-columns:repeat(3,1fr)}
  .criteria-layout{grid-template-columns:1fr}
  .criteria-nav{grid-template-columns:repeat(3,1fr)}
  .evidence-grid,.roles,.after-grid{grid-template-columns:repeat(2,1fr)}
  .site-process{grid-template-columns:repeat(2,1fr)}
  .overview-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:760px){
  .topbar{padding:0 14px}
  .topbar-title{display:none}
  .scene{padding:85px 6vw 78px;min-height:auto;min-height:100svh}
  .cover-grid,.split,.research-layout,.criteria-intro{grid-template-columns:1fr;gap:2rem}
  .cover-art{max-width:500px}
  h1{font-size:clamp(3.8rem,17vw,7rem)}
  h2{font-size:clamp(3rem,13vw,5.5rem)}
  .giant{font-size:8rem}
  .heritage-types,.evidence-grid,.mistakes,.roles,.after-grid,.site-process,.object-branches{grid-template-columns:1fr}
  .heritage-types article{min-height:auto;border-right:0;border-bottom:1px solid rgba(255,255,255,.15)}
  .criteria-nav{grid-template-columns:1fr 1fr}
  .criteria-head{display:block}
  .detail-grid{grid-template-columns:1fr;gap:1rem}
  .example{border-left:0;border-top:1px solid var(--line);padding:1rem 0 0}
  .flow-row{flex-direction:column}
  .flow-arrow{transform:rotate(90deg)}
  .branch{flex-direction:row;flex-wrap:wrap}
  .bar-row{grid-template-columns:100px 1fr 45px}
  .bar-row small{grid-column:2/4}
  .data-strip{grid-template-columns:1fr}
  .overview-grid{grid-template-columns:1fr 1fr}
  .controls{left:12px;right:12px;bottom:10px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{transition:none!important;animation:none!important}
}