:root{--bg:#03040A;--raised:#0A0D1A;--royal:#00167F;--signal:#3D7BFF;--text:#F4F6FB;--dim:#C3CADB;--line:rgba(255,255,255,.12);--warn:#FFB547;
--ease:cubic-bezier(.16,1,.3,1);--display:"Space Grotesk",system-ui,sans-serif;--body:Inter,system-ui,-apple-system,sans-serif;--mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
*,*::before,*::after{box-sizing:inherit}
html{background:var(--bg);scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--text);font:400 18px/1.55 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}p{margin:0}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.05;letter-spacing:-.015em;margin:0}
h1,h2{font-size:clamp(2.1rem,5vw,4.2rem)}
h3{font-size:1.2rem}
.mono{font-family:var(--mono);font-size:.9rem;color:var(--dim);letter-spacing:.04em}
.lead{color:var(--dim);font-size:clamp(1.1rem,1.6vw,1.3rem);margin-top:16px;max-width:34ch}
.wrap{width:min(1240px,100% - 40px);margin-inline:auto;position:relative}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 28px;border-radius:999px;border:1px solid rgba(255,255,255,.3);background:rgba(3,4,10,.5);color:var(--text);font:600 .92rem/1 var(--display);letter-spacing:.07em;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:background .15s,border-color .15s,transform .4s var(--ease)}
.btn:hover{border-color:#fff}
.btn.primary{background:var(--signal);border-color:var(--signal);color:#fff;box-shadow:0 0 44px rgba(61,123,255,.55)}
.btn.primary:hover{background:#5a8fff}
.btn.text{border:0;background:none;padding:0 6px;text-decoration:underline;text-underline-offset:5px;color:var(--dim)}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:28px}

.nav{position:fixed;top:0;left:0;right:0;z-index:50;padding-top:env(safe-area-inset-top,0px);background:linear-gradient(rgba(3,4,10,.75),transparent)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none}
.logo .mark{height:30px;width:43px}
.logo b{font:600 .95rem var(--display);letter-spacing:.3em}
.links{display:flex;gap:26px;align-items:center}
.links a:not(.btn){font-size:1rem;text-decoration:none;color:#E3E8F4;padding:8px 0}
.links a[aria-current=page]{box-shadow:0 2px 0 var(--signal)}
.links .btn{min-height:44px;padding:0 20px;font-size:.82rem}
@media(max-width:760px){.logo b{display:none}.links{gap:16px}.links .btn{display:none}.links a:not(.btn){font-size:.95rem}}

#scene,#wlabels,#flash{position:fixed;inset:0;z-index:0;display:none}
.gl #scene,.gl #wlabels,.gl #flash{display:block}
.gl body:not([data-route=world]) #wlabels{display:none}
#scene canvas{width:100%;height:100%;display:block}
/* Still of the opening scene, shown at once and faded out when the live 3D scene starts. */
#poster{position:fixed;inset:0;z-index:0;pointer-events:none;background:#0d1a12 url(/experience/poster-desk.webp) center/cover no-repeat;transition:opacity .9s ease .2s}
@media (max-aspect-ratio:4/5){#poster{background-image:url(/experience/poster-mob.webp)}}
.gl #poster{opacity:0}.nogl #poster{display:none}
#wlabels,#flash{z-index:3;pointer-events:none}
#filmwrap{position:fixed;inset:0;z-index:1;pointer-events:none;display:none;background:var(--bg)}
.film #filmwrap{display:block}
#film{width:100%;height:100%;display:block}
#filmwrap::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,4,10,.78),rgba(3,4,10,.25) 48%,transparent 70%),linear-gradient(0deg,rgba(3,4,10,.55),transparent 35%),linear-gradient(180deg,rgba(3,4,10,.5),transparent 18%)}
#flash{z-index:60;background:radial-gradient(circle,#fff,#9dbcff 40%,#3D7BFF);opacity:0}
.wl{position:absolute;left:0;top:0;pointer-events:auto;transform-origin:0 0;border:1px solid var(--line);background:rgba(3,4,10,.78);color:#fff;border-radius:999px;font:600 .95rem var(--display);letter-spacing:.03em;padding:10px 18px;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,opacity .3s}
.wl:hover,.wl.hot,.wl:focus-visible{background:var(--signal);border-color:var(--signal)}
@media(max-width:760px){.wl{font-size:.8rem;padding:8px 12px}}

.page{display:none;position:relative;z-index:2}.page.on{display:block}
.era{min-height:100svh;display:flex;align-items:flex-end;padding:0 0 13svh}
.cap{position:relative;max-width:560px}
.cap::before,.col::before{content:"";position:absolute;inset:-50px -60px;background:radial-gradient(closest-side,rgba(3,4,10,.8),rgba(3,4,10,.45) 70%,transparent);z-index:-1;pointer-events:none}
.cap .mono{display:block;margin-bottom:10px;color:#fff}
.hint{margin-top:26px;display:inline-flex;gap:10px;align-items:center;font:500 .9rem var(--mono);color:#fff}
.hint i{width:1px;height:34px;background:#fff;display:block;animation:drop 1.8s var(--ease) infinite;transform-origin:top}
@keyframes drop{0%{transform:scaleY(0)}60%{transform:scaleY(1)}100%{transform:scaleY(1);opacity:0}}
#rail{position:fixed;right:max(14px,env(safe-area-inset-right,0px));top:50%;transform:translateY(-50%);z-index:5;display:none;flex-direction:column;gap:6px}
.gl body[data-route=home] #rail{display:flex}
#rail button{all:unset;cursor:pointer;display:flex;align-items:center;justify-content:flex-end;gap:10px;height:26px;font:500 .78rem var(--mono);color:transparent;transition:color .2s}
#rail button::after{content:"";width:9px;height:9px;border-radius:50%;border:1.5px solid #fff;transition:background .2s,transform .2s}
#rail button.on{color:#fff}#rail button.on::after{background:#fff;transform:scale(1.35)}
#rail button:hover{color:#fff}
#rail button:focus-visible{outline:2px solid var(--signal)}
@media(max-width:760px){#rail button{color:transparent!important}}

.full{min-height:100svh;display:flex;align-items:center;padding:96px 0 60px}
.world-head{position:fixed;left:0;right:0;top:70px;text-align:center;z-index:2;padding:0 20px}
.world-head h1,.world-head h2{font-size:clamp(1.3rem,2.4vw,1.9rem)}
.world-foot .btn{min-height:40px;font-size:.78rem;padding:0 18px}
.world-foot{position:fixed;left:0;right:0;bottom:calc(8px + env(safe-area-inset-bottom,0px));text-align:center;z-index:4}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px;margin-top:28px}
.cards a{display:block;padding:20px;border:1px solid var(--line);border-radius:6px;background:var(--raised);text-decoration:none}
.cards a span{display:block;color:var(--dim);font-size:.95rem;margin-top:6px}
.gl .world-list{display:none}
.gl .page[data-page=world].on{min-height:260vh}
html:not(.gl) .world-head,html:not(.gl) .world-foot{position:static;margin-top:20px}
.col{max-width:520px;position:relative}.col.right{margin-left:auto}
.steps{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:10px;counter-reset:s}
.steps li{counter-increment:s;display:flex;gap:14px;align-items:center;padding:15px 18px;border:1px solid var(--line);border-radius:6px;background:rgba(10,13,26,.82);transition:border-color .4s,background .4s,transform .5s var(--ease)}
.steps li::before{content:counter(s);font:500 .9rem var(--mono);color:var(--signal);width:26px;height:26px;border:1px solid var(--signal);border-radius:50%;display:grid;place-items:center;flex:none}
.steps li.on{border-color:var(--signal);background:rgba(0,22,127,.75);transform:translateX(8px)}
.steps li.on::before{background:var(--signal);color:#fff}
@media(max-width:900px){.col,.col.right{margin:0;max-width:none}.full.svc{align-items:flex-end}}

.panel{background:rgba(10,13,26,.86);border:1px solid var(--line);border-radius:6px;padding:26px}
.progress{height:2px;background:var(--line);margin:18px 0 28px}
.progress i{display:block;height:100%;background:var(--signal);width:0;transition:width .5s var(--ease)}
.q{font:600 clamp(1.3rem,3vw,1.8rem)/1.2 var(--display);margin-bottom:20px}
.opts{display:grid;gap:10px}
.opts button{all:unset;cursor:pointer;padding:17px 20px;border:1px solid var(--line);border-radius:4px;background:var(--raised);font-size:1.05rem;transition:border-color .15s,background .15s}
.opts button:hover{border-color:var(--signal);background:rgba(61,123,255,.14)}
.opts button:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.score{display:grid;grid-template-columns:120px 1fr 52px;gap:14px;align-items:center;padding:9px 0;font:500 .9rem var(--mono)}
.score div{height:8px;background:var(--line);border-radius:4px;overflow:hidden}
.score div i{display:block;height:100%;background:var(--signal);width:0;transition:width 1s var(--ease)}
.score.low div i{background:var(--warn)}
.opp{margin:26px 0 0;padding:22px;border:1px solid rgba(61,123,255,.6);border-radius:4px}
.opp b{display:block;font:600 1.6rem/1.15 var(--display);margin-top:6px}
.foot{position:relative;z-index:2;border-top:1px solid var(--line);padding:26px 0 calc(26px + env(safe-area-inset-bottom,0px));color:var(--dim);font-size:.9rem;background:rgba(3,4,10,.8)}
.foot .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
.foot a{text-decoration:none}
body[data-route=home] .foot,body[data-route=world] .foot{display:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}