:root{--bone:#efe7d6;--paper:#e4d9c2;--sea:#d8ccb1;--ink:#15110d;--ink2:#211a13;--ash:#5d5448;--madder:#b2412a;--madder-d:#8f3320;--brass:#d2a65e;--serif:'Fraunces',Georgia,'Times New Roman',serif;--sans:'Hanken Grotesk',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;--ease:cubic-bezier(.22,.8,.24,1);--pad:clamp(20px,5vw,72px)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bone);color:var(--ink);font:400 17px/1.7 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,p,ul{margin:0;padding:0}
ul{list-style:none}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--madder);color:var(--bone)}
:focus-visible{outline:2px solid var(--madder);outline-offset:4px;border-radius:2px}
.stage :focus-visible,.fact-sec :focus-visible,.foot :focus-visible,.top.on-dark :focus-visible{outline-color:var(--brass)}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--ink);color:var(--bone);padding:10px 16px;border-radius:6px}
.skip:focus{left:8px}
.wrap{padding:0 var(--pad);max-width:1440px;margin:0 auto}
.narrow{max-width:760px;margin:0 auto}
.eyebrow{font:600 12px/1.4 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--madder-d)}
.big{font:500 clamp(40px,7vw,104px)/1.02 var(--serif);font-variation-settings:'opsz' 144;letter-spacing:-.02em;margin:14px 0 18px}
.big em,.c-hero h1 em,.hero h1 em{font-style:italic;font-weight:400;color:var(--madder)}
.sub{max-width:56ch;color:var(--ash);font-size:18px}

/* header */
.top{position:fixed;inset:0 0 auto;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:14px var(--pad);color:var(--ink);transition:color .6s var(--ease),background .6s var(--ease)}
.top.on-dark{color:var(--bone)}
.top.solid{background:color-mix(in srgb,var(--bone) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.top.solid.on-dark{background:color-mix(in srgb,var(--ink) 80%,transparent)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font:600 15px var(--serif);letter-spacing:.24em;text-transform:uppercase;min-height:44px}
.brand svg{width:26px;height:26px}
.top nav{display:flex;gap:clamp(8px,2vw,30px)}
.top nav a{text-decoration:none;font:500 13px var(--sans);letter-spacing:.14em;text-transform:uppercase;padding:14px 6px;position:relative;min-height:44px;display:inline-flex;align-items:center}
.top nav a::after{content:'';position:absolute;left:6px;right:6px;bottom:9px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.top nav a:hover::after,.top nav a:focus-visible::after{transform:scaleX(1)}

/* stage: hero and the ascent share one sticky 3D canvas */
.stage{position:relative;background:var(--bone)}
.stage-sticky{position:sticky;top:0;height:100vh;height:100svh;margin-bottom:-100vh;margin-bottom:-100svh;overflow:hidden;z-index:0}
.dusk{position:absolute;inset:0;background:radial-gradient(120% 90% at 50% 40%,#2a2118,#120e0a);opacity:var(--t,0)}
.word{position:absolute;left:0;right:0;top:17%;display:grid;grid-template-columns:1fr 1fr;column-gap:max(16vw,200px);padding:0 3vw;font:600 clamp(86px,13vw,240px)/.8 var(--serif);font-variation-settings:'opsz' 144;letter-spacing:-.04em;text-transform:uppercase;color:var(--ink);opacity:calc(1 - var(--t,0)*1.7);transform:translateY(calc(var(--t,0)*-60px));pointer-events:none;user-select:none}
.word span:first-child{text-align:right}.word span:last-child{color:var(--madder)}
.orbit{position:absolute;inset:0;touch-action:pan-y;cursor:grab}
.orbit:active{cursor:grabbing}
.orbit canvas{display:block;width:100%;height:100%}
.grain{position:absolute;inset:0;pointer-events:none;opacity:.5;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .3 0 0 0 0 .25 0 0 0 0 .2 0 0 0 .13 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.loadbar{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:12px;font:600 12px var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--ink);transition:opacity .8s var(--ease);z-index:3;text-align:center;padding:18px 24px;border-radius:14px;background:#efe7d6cc}
.loadbar i{display:block;width:160px;height:3px;background:#15110d22;border-radius:2px;overflow:hidden}
.loadbar b{display:block;height:100%;width:0;background:var(--madder);transition:width .3s}
.loadbar.done{opacity:0;pointer-events:none}
.loadbar.fail{background:var(--ink);color:var(--bone);letter-spacing:.04em;text-transform:none;font-size:15px;max-width:320px}
.hero{position:relative;z-index:2;height:100vh;height:100svh;min-height:620px;display:flex;align-items:flex-end;padding:0 var(--pad) clamp(28px,6vh,64px);opacity:calc(1 - var(--t,0)*2.2)}
.hero-copy{max-width:min(430px,38vw)}
.hero h1{font:500 clamp(30px,3.2vw,52px)/1.05 var(--serif);letter-spacing:-.015em}
.hero .for{margin:16px 0 14px;font-size:17px;color:#33291f}
.cue{display:inline-flex;align-items:center;gap:14px;text-decoration:none;font:600 12px var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--ink);padding:8px 0;min-height:48px}
.cue i{display:block;width:48px;height:48px;border-radius:50%;border:1px solid var(--ink);position:relative;transition:background .4s var(--ease),transform .4s var(--ease)}
.cue i::before{content:'';position:absolute;left:50%;top:50%;width:9px;height:9px;border:solid var(--ink);border-width:0 1.5px 1.5px 0;transform:translate(-50%,-70%) rotate(45deg);animation:nudge 2.4s ease-in-out infinite}
.cue:hover i{background:var(--madder);border-color:var(--madder);transform:translateY(3px)}
.cue:hover i::before{border-color:var(--bone)}
@keyframes nudge{50%{transform:translate(-50%,-30%) rotate(45deg)}}

.ascent{position:relative;z-index:2;color:var(--bone)}
.step{min-height:135vh;min-height:135svh;display:flex;align-items:center;padding:0 var(--pad)}
.step:nth-child(odd){justify-content:flex-start}
.step:nth-child(even){justify-content:flex-end}
.card{max-width:min(500px,42vw);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.js .card{opacity:0;transform:translateY(34px)}
.js .step.in .card{opacity:1;transform:none}
.kicker{font:600 12px var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--brass)}
.kicker .num{font:400 italic 44px/1 var(--serif);letter-spacing:0;color:var(--bone);margin-right:12px;vertical-align:-8px}
.card h2{font:500 clamp(34px,4.4vw,64px)/1.03 var(--serif);font-variation-settings:'opsz' 144;letter-spacing:-.02em;margin:18px 0 18px}
.lede{font-size:17px;line-height:1.7;color:#ece2cf}
.go{display:inline-flex;gap:10px;align-items:center;margin-top:26px;text-decoration:none;font:600 13px var(--sans);letter-spacing:.16em;text-transform:uppercase;padding:14px 22px;min-height:48px;border:1px solid currentColor;border-radius:999px;transition:background .4s var(--ease),color .4s var(--ease),border-color .4s var(--ease),gap .4s var(--ease)}
.go:hover,.go:focus-visible{gap:16px;background:var(--bone);color:var(--ink);border-color:var(--bone)}
.rail{position:fixed;right:clamp(12px,2.2vw,32px);top:50%;transform:translateY(-50%);z-index:30;display:flex;flex-direction:column;align-items:flex-end;gap:11px;opacity:0;transition:opacity .6s;pointer-events:none}
.rail.show{opacity:1}
.rail i{display:block;height:2px;width:16px;background:#efe7d688;transition:width .6s var(--ease),background .6s}
.rail i.on{width:40px;background:var(--brass)}
.turn{position:fixed;right:var(--pad);bottom:22px;z-index:30;display:flex;gap:8px;align-items:center;opacity:0;transition:opacity .6s;pointer-events:none}
.turn.show{opacity:1;pointer-events:auto}
.turn button{height:48px;min-width:48px;padding:0 18px;border-radius:999px;border:1px solid #efe7d655;background:#15110dcc;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--bone);font:600 12px var(--sans);letter-spacing:.14em;text-transform:uppercase;transition:background .3s,border-color .3s}
.turn button:hover{background:var(--madder);border-color:var(--madder)}
.turn button[aria-pressed=true]{background:var(--bone);color:var(--ink)}

/* map */
.map-sec{background:var(--bone);padding:clamp(80px,12vw,180px) 0 clamp(60px,9vw,130px);position:relative;z-index:3}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 22px}
.chip{padding:12px 20px;min-height:48px;border-radius:999px;border:1px solid var(--ink);font:600 12px var(--sans);letter-spacing:.14em;text-transform:uppercase;transition:all .35s var(--ease)}
.chip:hover{background:var(--paper)}
.chip[aria-pressed=true]{background:var(--ink);color:var(--bone)}
.map-frame{position:relative;border-radius:22px;background:var(--sea);border:1px solid #15110d22;box-shadow:0 40px 80px -50px #15110d88}
.map-scroll{overflow-x:auto;border-radius:22px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
#map-svg{display:block;width:100%;min-width:940px;height:auto}
.land{fill:var(--bone);stroke:#9f927a;stroke-width:1;stroke-linejoin:round}
.route{fill:none;stroke:var(--madder);stroke-width:3.2;stroke-linecap:round;stroke-dasharray:2 9;transition:opacity .5s}
.seen .route{animation:march 30s linear infinite}
@keyframes march{to{stroke-dashoffset:-220}}
.pin{cursor:pointer;outline:none}
.pin .dot{fill:var(--ink);stroke:var(--bone);stroke-width:2.5;transition:fill .3s,transform .3s var(--ease)}
.pin .hit{fill:transparent}
.pin .lbl{font:600 15px var(--sans);fill:var(--ink);paint-order:stroke;stroke:var(--bone);stroke-width:4px;stroke-linejoin:round}
.pin-r .lbl{transform:translate(13px,5px)}
.pin-l .lbl{transform:translate(-13px,5px);text-anchor:end}
.pin-b .lbl{transform:translate(0,28px);text-anchor:middle}
.pin:hover .dot,.pin:focus-visible .dot,.pin.sel .dot{fill:var(--madder);transform:rotate(45deg) scale(1.45)}
.pin:focus-visible .hit{stroke:var(--madder);stroke-width:2}
.pin.off,.route.off{opacity:.1;pointer-events:none}
.pop{position:absolute;z-index:5;width:min(290px,78%);background:var(--ink);color:var(--bone);padding:18px 20px 20px;border-radius:16px;box-shadow:0 24px 60px -20px #000a;transform:translate(-50%,calc(-100% - 20px))}
.pop[hidden]{display:none}
.pn-name{font:500 24px/1.1 var(--serif)}
.pt{font-size:15px;line-height:1.55;margin-top:8px;color:#e6dcc7}
.pop .go{margin-top:14px;padding:10px 16px;font-size:11px}
.pop-x{position:absolute;right:6px;top:6px;width:44px;height:44px;border-radius:50%;font-size:20px;color:var(--bone)}
.pop-x:hover{background:#efe7d622}
.map-hint{display:none;margin-top:12px;font-size:14px;color:var(--ash)}

/* chapters */
.chap-sec{background:var(--paper);padding:clamp(70px,10vw,150px) 0;position:relative;z-index:3}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:44px}
.tile{display:flex;flex-direction:column;min-height:300px;padding:24px;border-radius:18px;background:var(--bone);text-decoration:none;position:relative;overflow:hidden;isolation:isolate;transition:color .5s var(--ease),transform .6s var(--ease),box-shadow .6s var(--ease)}
.tile::before{content:'';position:absolute;inset:0;background:var(--ink);transform:translateY(101%);transition:transform .6s var(--ease);z-index:-1}
.tile:hover,.tile:focus-visible{color:var(--bone);transform:translateY(-6px);box-shadow:0 30px 50px -30px #15110dbb}
.tile:hover::before,.tile:focus-visible::before{transform:none}
.tn{font:300 italic 76px/1 var(--serif);color:var(--madder);transition:color .5s}
.tile:hover .tn,.tile:focus-visible .tn{color:var(--brass)}
.td{font:600 11px var(--sans);letter-spacing:.16em;text-transform:uppercase;margin-top:auto;padding-top:26px;color:var(--ash);transition:color .5s}
.tile:hover .td,.tile:focus-visible .td{color:#d8ccb4}
.tt{font:500 24px/1.12 var(--serif);margin-top:8px}
.tk{font-size:14px;margin-top:8px;color:var(--ash);transition:color .5s}
.tile:hover .tk,.tile:focus-visible .tk{color:#d8ccb4}
.js .tile,.js .facts li{opacity:0;transform:translateY(40px);transition:opacity .9s var(--ease) var(--d,0s),transform .9s var(--ease) var(--d,0s),color .5s var(--ease),box-shadow .6s var(--ease)}
.js .tile.seen,.js .facts li.seen{opacity:1;transform:none}
.js .tile.seen:hover{transform:translateY(-6px)}

/* facts */
.fact-sec{background:var(--ink);color:var(--bone);padding:clamp(70px,10vw,150px) 0;position:relative;z-index:3}
.fact-sec .big em{color:var(--brass)}
.fact-sec .eyebrow{color:var(--brass)}
.facts{columns:3;column-gap:16px;margin-top:44px}
.facts li{break-inside:avoid;margin-bottom:16px}
.facts a{display:block;text-decoration:none;padding:26px;border:1px solid #efe7d633;border-radius:18px;transition:background .5s var(--ease),border-color .5s}
.facts a:hover,.facts a:focus-visible{background:#efe7d610;border-color:#efe7d688}
.fl{display:block;font:500 22px/1.15 var(--serif);color:var(--brass)}
.ft{display:block;margin-top:10px;font-size:16px;color:#ece2cf}
.fc{display:block;margin-top:16px;font:600 11px var(--sans);letter-spacing:.18em;text-transform:uppercase;color:#c4b9a3}

/* footer */
.foot{background:var(--ink2);color:#e3d9c4;padding:60px var(--pad) 70px;display:grid;grid-template-columns:1fr 1.4fr;gap:40px;font-size:15px;position:relative;z-index:3;border-top:1px solid #efe7d622}
.foot p+p{margin-top:12px}
.foot-mark{font:600 20px var(--serif);letter-spacing:.24em;text-transform:uppercase;color:var(--bone);margin-bottom:12px}
.foot a{text-underline-offset:4px;display:inline-block;padding:8px 2px}
.nojs{padding:80px var(--pad);position:relative;z-index:3;background:var(--bone)}

/* chapter pages */
.chapter .top{background:color-mix(in srgb,var(--bone) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.c-hero{position:relative;padding:clamp(120px,16vw,200px) 0 clamp(40px,6vw,90px);overflow:hidden;isolation:isolate}
.c-hero h1{font:500 clamp(44px,8.6vw,132px)/.98 var(--serif);font-variation-settings:'opsz' 144;letter-spacing:-.03em;margin:18px 0;max-width:12ch}
.c-kick{font:italic 400 clamp(20px,2.2vw,30px)/1.3 var(--serif);color:var(--madder-d)}
.c-intro{max-width:52ch;font-size:19px;margin-top:22px;color:#33291f}
.back{display:inline-flex;align-items:center;min-height:48px;text-decoration:none;font:600 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;padding:12px 0}
.back:hover{color:var(--madder)}
.c-art{position:absolute;right:0;top:0;width:min(46vw,700px);height:100%;object-fit:cover;z-index:-1;mask-image:linear-gradient(90deg,transparent,#000 40%);-webkit-mask-image:linear-gradient(90deg,transparent,#000 40%);opacity:.92}
.c-num{position:absolute;right:var(--pad);top:50%;transform:translateY(-44%);font:300 italic clamp(180px,32vw,460px)/1 var(--serif);color:transparent;-webkit-text-stroke:1.5px #b2412a66;z-index:-1;pointer-events:none}
.c-body{padding:30px 0 40px}
.c-sec{margin-bottom:56px}
.c-sec h2{font:500 clamp(28px,3.4vw,42px)/1.1 var(--serif);letter-spacing:-.015em;margin-bottom:18px;display:flex;gap:16px;align-items:baseline}
.c-sec h2 span{font:300 italic 28px var(--serif);color:var(--madder-d)}
.c-sec p{margin-bottom:1em;font-size:19px;line-height:1.8;color:#2a2118}
.c-sec:first-child p:first-of-type::first-letter{font:500 5.2em/.8 var(--serif);float:left;padding:8px 14px 0 0;color:var(--madder)}
.pull{margin:64px 0;padding:8px 0 8px 28px;border-left:3px solid var(--madder)}
.pull .fl{color:var(--madder-d)}
.pull p:last-child{font:400 italic clamp(22px,2.6vw,30px)/1.4 var(--serif);margin-top:10px}
.sources{margin-top:60px;padding:30px;border-radius:18px;background:var(--paper)}
.sources h2{font:500 26px var(--serif);margin-bottom:14px}
.sources li{border-top:1px solid #15110d22}
.sources a{display:block;padding:14px 4px;text-decoration:none;font-size:16px;transition:padding .4s var(--ease),color .3s}
.sources a:hover,.sources a:focus-visible{padding-left:14px;color:var(--madder-d)}
.c-nav{padding:30px 0 90px}
.c-nav .wrap{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pn{display:flex;flex-direction:column;gap:6px;padding:26px 28px;border-radius:18px;background:var(--paper);text-decoration:none;transition:background .5s var(--ease),color .5s,transform .5s var(--ease)}
.pn small{font:600 11px var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--madder-d);transition:color .5s}
.pn span{font:500 clamp(20px,2.4vw,30px)/1.15 var(--serif)}
.pn.next{text-align:right}
.pn:hover,.pn:focus-visible{background:var(--ink);color:var(--bone);transform:translateY(-4px)}
.pn:hover small,.pn:focus-visible small{color:var(--brass)}

@media (max-width:1000px){
  .tiles{grid-template-columns:repeat(3,1fr)}
  .facts{columns:2}
}
@media (max-width:760px){
  body{font-size:16px}
  .brand span{font-size:13px;letter-spacing:.2em}
  .top nav a:nth-child(1){display:none}
  .word{top:12%;display:flex;flex-direction:column;align-items:flex-start;font-size:27.5vw;line-height:.78;padding:0 5vw;gap:2vw}
  .hero{padding-bottom:26px}
  .hero-copy{max-width:none;width:100%;margin:0 calc(var(--pad)*-1);padding:36px var(--pad) 0;background:linear-gradient(0deg,var(--bone) 70%,#efe7d600)}
  .hero h1{font-size:34px}
  .hero .for{font-size:16px;margin:10px 0 8px}
  .step{align-items:flex-end;padding-bottom:6svh;min-height:150vh;min-height:150svh}
  .card{max-width:100%;padding:22px 22px 24px;border-radius:22px;background:#15110de0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid #efe7d622}
  .card h2{font-size:30px;margin:10px 0}
  .kicker .num{font-size:34px;vertical-align:-5px}
  .lede{font-size:15.5px;line-height:1.6}
  .go{margin-top:16px;padding:12px 18px}
  .rail{display:none}
  .turn{bottom:auto;top:84px;left:var(--pad);right:auto}
  .turn button{height:48px;min-width:48px;padding:0 14px;font-size:11px}
  .map-hint{display:block}
  .tiles{grid-template-columns:repeat(2,1fr);gap:10px}
  .tile{min-height:220px;padding:16px}
  .tn{font-size:52px}
  .tt{font-size:19px}
  .tk{display:none}
  .facts{columns:1}
  .foot{grid-template-columns:1fr}
  .c-art{position:relative;width:calc(100% + var(--pad)*2);margin:34px calc(var(--pad)*-1) -30px;height:250px;mask-image:linear-gradient(0deg,transparent,#000 40%);-webkit-mask-image:linear-gradient(0deg,transparent,#000 40%)}
  .c-hero{overflow:hidden}
  .c-num{font-size:180px;top:auto;bottom:-10px;transform:none}
  .c-nav .wrap{grid-template-columns:1fr}
  .pn.next{text-align:left}
  .c-sec p{font-size:18px}
  .pop{width:min(260px,70vw)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation:none!important}
  .js .card,.js .tile,.js .facts li{opacity:1;transform:none}
}