@font-face{font-family:"Cormorant";src:url("/fonts/CormorantGaramond-Variable.woff") format("woff");font-weight:300 700;font-display:swap}
@font-face{font-family:"Cormorant";src:url("/fonts/CormorantGaramond-Italic-Variable.woff") format("woff");font-weight:300 700;font-style:italic;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}

:root,[data-theme="atlas"]{
  --bg:#15130f; --bg-rgb:21,19,15;
  --ink:#efe6d2; --muted:#b4a98f; --line:#b08d57; --line-soft:rgba(176,141,87,.38);
  --accent:#c9a46a; --on-accent:#17140f;
  --portrait-filter:sepia(.16) saturate(1.04) contrast(1.03) brightness(1.01);
  --tint:rgba(201,164,106,.07);
}
[data-theme="signal"]{
  --bg:#0b120e; --bg-rgb:11,18,14;
  --ink:#dfe8df; --muted:#9aae9f; --line:#8fae95; --line-soft:rgba(143,174,149,.36);
  --accent:#a9c7ae; --on-accent:#0b120e;
  --portrait-filter:grayscale(.94) contrast(1.1) brightness(.96);
  --tint:rgba(143,174,149,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg);-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;color:var(--ink);background:var(--bg);font:400 1.0625rem/1.6 "Cormorant",Georgia,serif;font-size:1.2rem;overflow-x:hidden;transition:background-color .5s,color .5s}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:"Cormorant",Georgia,serif;font-weight:500;line-height:.92;margin:0;letter-spacing:-.01em}
.label,.btn,.site-nav a,.theme-switch button,.logo,.play{font-family:"Plex Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.label{color:var(--muted);margin:0}
.dot{display:inline-block;width:.45rem;height:.45rem;border:1px solid var(--line);border-radius:50%;margin-right:.6rem;vertical-align:.05rem}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:1px}
.skip{position:absolute;left:1rem;top:-4rem;z-index:100;background:var(--accent);color:var(--on-accent);padding:.6rem 1rem;font-family:"Plex Mono",monospace;font-size:.8rem;text-decoration:none}
.skip:focus{top:1rem}

/* stage */
.stage{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
#terrain{position:absolute;inset:0;width:100%;height:100%;display:block;transition:opacity .45s ease}
.fallback{position:absolute;inset:0;display:none}
.fallback>div{position:absolute;inset:-5%;background:var(--line);-webkit-mask:url("/images/contours.svg") center/cover no-repeat;mask:url("/images/contours.svg") center/cover no-repeat;opacity:.55;transition:opacity .6s}
.fallback-b{transform:scale(1.6) rotate(-8deg);opacity:0!important}
.no-webgl #terrain{display:none}
.no-webgl .fallback{display:block}
.no-webgl.at-map .fallback-a{opacity:.18}
.no-webgl.at-map .fallback-b{opacity:.4!important}
.scrim{position:absolute;inset:0;background:radial-gradient(120% 90% at 50% 40%,transparent 40%,rgba(var(--bg-rgb),.75) 100%)}
.map-labels{position:absolute;inset:0;opacity:0;transition:opacity .3s}
.map-labels span{position:absolute;left:0;top:0;font:500 .64rem/1 "Plex Mono",monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);white-space:nowrap;transform:translate(-50%,-50%);will-change:transform}
.map-labels span.minor{font-size:.56rem;opacity:.8}
.map-labels span.pt::before{content:"";display:inline-block;width:.4rem;height:.4rem;border:1px solid var(--accent);transform:rotate(45deg);margin-right:.45rem}
.no-webgl .map-labels{display:none}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:20;border-bottom:1px solid var(--line-soft);background:linear-gradient(rgba(var(--bg-rgb),.92),rgba(var(--bg-rgb),.72));backdrop-filter:blur(6px)}
.header-inner{max-width:88rem;margin:0 auto;padding:.85rem clamp(1rem,4vw,3rem);display:flex;align-items:center;gap:1.5rem}
.logo{text-decoration:none;color:var(--ink);font-weight:500;letter-spacing:.22em}
.site-nav{display:flex;gap:1.4rem;margin-left:auto}
.site-nav a{text-decoration:none;color:var(--muted);padding:.35rem 0;border-bottom:1px solid transparent}
.site-nav a:hover,.site-nav a[aria-current="true"]{color:var(--ink);border-bottom-color:var(--line)}
.theme-switch{display:inline-flex;border:1px solid var(--line-soft);border-radius:2px;padding:2px}
.theme-switch button{background:none;border:0;color:var(--muted);padding:.38rem .6rem;cursor:pointer;font-size:.64rem}
.theme-switch button[aria-pressed="true"]{background:var(--accent);color:var(--on-accent)}

/* layout */
main{position:relative;z-index:2}
.panel{position:relative}
.panel::before{content:"";position:absolute;inset:-2.5rem -3rem;z-index:-1;background:radial-gradient(closest-side,rgba(var(--bg-rgb),.82),rgba(var(--bg-rgb),.55) 65%,transparent);pointer-events:none}
.hero{min-height:100vh;min-height:100svh;max-width:88rem;margin:0 auto;padding:7rem clamp(1rem,4vw,3rem) 4rem;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(2rem,5vw,5rem);position:relative}
.hero h1{font-size:clamp(4.2rem,11vw,10.5rem);font-weight:400;margin:1.2rem 0 1.4rem}
.tagline{font-style:italic;font-size:clamp(1.5rem,2.4vw,2.1rem);margin:0 0 1rem;color:var(--ink)}
.lede{color:var(--muted);max-width:30rem;margin:0 0 2rem;font-size:1.25rem}
.actions{display:flex;flex-wrap:wrap;gap:.75rem}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:2.75rem;padding:.7rem 1.15rem;border:1px solid var(--line);color:var(--ink);text-decoration:none;background:rgba(var(--bg-rgb),.4);transition:background .2s,color .2s}
.btn:hover{background:var(--tint)}
.btn-solid{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.btn-solid:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}

.hero-portrait{margin:0;justify-self:center;width:min(100%,30rem);transform:translate3d(var(--px,0px),var(--py,0px),0);transition:transform .25s ease-out}
.frame{position:relative;padding:1.1rem;border:1px solid var(--line-soft)}
.frame img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;filter:var(--portrait-filter);transition:filter .6s}
.frame picture{display:block;position:relative}
.frame picture::after{content:"";position:absolute;inset:0;background:var(--tint);mix-blend-mode:color;pointer-events:none}
.tick{position:absolute;width:18px;height:18px;border-color:var(--line);border-style:solid;border-width:0}
.tick.tl{top:-1px;left:-1px;border-top-width:2px;border-left-width:2px}
.tick.tr{top:-1px;right:-1px;border-top-width:2px;border-right-width:2px}
.tick.bl{bottom:-1px;left:-1px;border-bottom-width:2px;border-left-width:2px}
.tick.br{bottom:-1px;right:-1px;border-bottom-width:2px;border-right-width:2px}
.coord{position:absolute;font:400 .58rem/1 "Plex Mono",monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);white-space:nowrap;background:var(--bg);padding:0 .4rem}
.c-top{top:-.3rem;left:50%;transform:translateX(-50%)}
.c-bottom{bottom:-.3rem;left:50%;transform:translateX(-50%)}
.c-left{left:-.3rem;top:50%;transform:translate(-50%,-50%) rotate(-90deg)}
.c-right{right:-.3rem;top:50%;transform:translate(50%,-50%) rotate(90deg)}
.hero-portrait figcaption{margin-top:.8rem;text-align:right}
.scroll-cue{position:absolute;bottom:1.5rem;left:clamp(1rem,4vw,3rem)}

.transit{height:55vh}
.section{max-width:88rem;margin:0 auto;padding:clamp(5rem,12vh,9rem) clamp(1rem,4vw,3rem);min-height:100vh;display:flex;align-items:center}
.section h2{font-size:clamp(3rem,7vw,6.5rem);font-weight:400;margin:1rem 0 1.5rem}
.prose{max-width:34rem;color:var(--muted);font-size:1.3rem;margin:0 0 2rem}
.geo-panel{max-width:36rem}
.doc-card{border:1px solid var(--line-soft);padding:1.6rem;position:relative;background:rgba(var(--bg-rgb),.55)}
.doc-card::before,.doc-card::after{content:"+";position:absolute;font:400 .9rem/1 "Plex Mono",monospace;color:var(--line)}
.doc-card::before{top:-.5rem;left:-.35rem}.doc-card::after{bottom:-.5rem;right:-.35rem}
.doc-card h3{font-size:clamp(2.2rem,4vw,3.4rem);margin:.6rem 0 1.1rem}
.doc-card hr{border:0;border-top:1px solid var(--line-soft);margin:0 0 1rem}
.episode{font-size:1.5rem;line-height:1.2;margin:.4rem 0 1.5rem}
.episode cite{font-style:italic}
.doc-meta{margin-bottom:.6rem}
.doc-desc{color:var(--muted);font-size:1.15rem;line-height:1.45;margin:0 0 1.4rem}
.schematic-note{margin-top:1.4rem}
.schematic-note strong{color:var(--ink);font-weight:500}

.music{justify-content:flex-end}
.music-panel{width:min(100%,56rem)}
.song{font-style:italic;color:var(--ink)}
.wave-block{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);padding:1.2rem 0;margin:0 0 2rem}
.wave-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:.8rem}
.play{display:inline-flex;align-items:center;gap:.6rem;min-height:2.75rem;padding:.6rem 1rem;background:transparent;border:1px solid var(--line);color:var(--ink);cursor:pointer}
.play svg{width:14px;height:14px;fill:currentColor}
.play .i-pause,.play[aria-pressed="true"] .i-play{display:none}
.play[aria-pressed="true"] .i-pause{display:inline}
.play[aria-pressed="true"]{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.wave{width:100%;height:clamp(140px,22vw,220px);display:block}
.wave polyline{fill:none;stroke:var(--line);vector-effect:non-scaling-stroke}
.wave line{stroke:var(--line-soft);vector-effect:non-scaling-stroke}
.wave-scale{display:flex;justify-content:space-between;margin-top:.6rem;font-size:.6rem}

.links-panel{width:100%}
.dir{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;border-top:1px solid var(--line-soft);padding-top:1.5rem}
.dir-group .label{font-size:.72rem;margin:0 0 .9rem;color:var(--accent);line-height:1.4;font-weight:500}
.dir ul{list-style:none;margin:0;padding:0}
.dir li{border-bottom:1px solid var(--line-soft)}
.dir a{display:flex;flex-direction:column;gap:.2rem;padding:.85rem 0;text-decoration:none;font-size:1.45rem;line-height:1.15}
.dir a:hover span:first-child{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}
.dir .handle{font:400 .7rem/1.3 "Plex Mono",monospace;letter-spacing:.1em;color:var(--muted)}
.share{margin-top:2rem}
.also{margin-top:1.4rem}
.also a{color:var(--ink);text-underline-offset:.25em}
.share a{color:var(--ink)}
.site-footer{position:relative;z-index:2;max-width:88rem;margin:0 auto;padding:2rem clamp(1rem,4vw,3rem) 3rem;display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--line-soft);flex-wrap:wrap}
.site-footer a{text-decoration:none}

/* links page */
.links-page main{padding-top:6rem}
.links-page .section{min-height:auto;padding-top:3rem}
.page-error{min-height:100vh;display:grid;place-items:center;text-align:center;padding:2rem;position:relative;z-index:2}
.page-error h1{font-size:4rem;margin:1rem 0}

@media (max-width:860px){
  body{font-size:1.1rem}
  .header-inner{flex-wrap:wrap;gap:.5rem 1rem;padding:.65rem 1rem}
  .theme-switch{margin-left:auto}
  .site-nav{order:3;width:100%;margin:0;justify-content:space-between;gap:.5rem}
  .site-nav a{font-size:.64rem;letter-spacing:.1em}
  .hero{grid-template-columns:1fr;padding-top:7.5rem;gap:2.5rem;min-height:auto}
  .hero-portrait{width:min(82vw,22rem);order:-1}
  .hero h1{font-size:clamp(3.6rem,18vw,5.5rem);margin:.8rem 0 1rem}
  .scroll-cue{display:none}
  .transit{height:30vh}
  .section{min-height:auto;padding:5rem 1rem}
  .geo{padding-top:62vh}
  .transit{height:20vh}
  .dir{grid-template-columns:1fr}
  .panel::before{inset:-1.5rem -1rem}
  .actions .btn{flex:1 1 100%}
  .coord.c-left,.coord.c-right{display:none}
}
@media (prefers-reduced-motion:reduce){
  .hero-portrait{transform:none!important;transition:none}
  *{transition-duration:.01ms!important}
  #terrain{transition:opacity .4s ease!important}
}