:root{--ink:#152220;--deep:#101b19;--panel:#1c2d2a;--lime:#d8f36b;--paper:#f6f5ef;--muted:#a5b5ae;--line:#354640;--max:1280px;color-scheme:dark;font-family:'Segoe UI',Arial,sans-serif;background:var(--ink);color:var(--paper)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}h1,h2,h3,p{margin:0}a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:6px}[hidden]{display:none!important}::selection{background:var(--lime);color:var(--ink)}.wrap{width:min(var(--max),calc(100% - 96px));margin-inline:auto}.mono{font-family:Consolas,'Courier New',monospace;font-size:10px;font-weight:400;letter-spacing:.1em;line-height:1.6}.skip{position:fixed;z-index:100;left:20px;top:-100px;padding:16px;background:var(--lime);color:var(--ink)}.skip:focus{top:16px}.header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:90px;padding:18px max(48px,calc((100% - var(--max))/2));background:rgba(21,34,32,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.identity{display:flex;align-items:center;font-weight:900;font-size:30px;letter-spacing:-.08em}.identity>span{color:var(--lime)}.identity small{margin-left:20px;font:10px/1.65 Consolas,monospace;letter-spacing:.12em}.identity b{color:var(--muted);font-weight:400}.header nav{display:flex;gap:32px;font-size:12px}.header nav a,.header-contact{transition:color .2s}.header nav a:hover,.header-contact:hover{color:var(--lime)}.header-contact{border:1px solid #627258;padding:10px 18px;font-size:12px}.header-contact span{margin-left:26px;color:var(--lime)}.hero{padding-top:42px}.hero-top,.hero-foot{display:flex;justify-content:space-between;align-items:center;gap:24px;color:var(--muted)}.hero-top p{display:flex;align-items:center;gap:12px}.dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 16px #d8f33666}.back{font-size:9px}.back:hover{color:var(--lime)}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:75px;align-items:center;padding:65px 0 70px}.hero h1{font-size:clamp(50px,5.6vw,83px);line-height:1.04;font-weight:650;letter-spacing:-.065em}.hero h1 em{font-style:normal;color:var(--lime)}.intro{max-width:480px;margin-top:28px;font-size:15px;line-height:1.85;color:var(--muted)}.actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-top:32px}.button{display:inline-flex;align-items:center;gap:35px;padding:17px 22px;background:var(--lime);color:var(--ink);font-size:12px;font-weight:650;transition:background .2s,transform .2s}.button:hover{background:#e7ff9b;transform:translateY(-3px)}.button span{font-size:19px}.text-link{font-size:11px;border-bottom:1px solid var(--line);padding-bottom:7px}.hero-foot{padding-block:21px;border-top:1px solid var(--line);font-size:9px}.hero-foot>span:last-child span{margin-left:24px;color:var(--lime)}
.architecture{border:1px solid #4d6052;background:radial-gradient(ellipse at 50% 40%,#2a3c2c99,transparent 70%),var(--deep);box-shadow:20px 20px 0 #1b2b25;transform:perspective(1200px) rotateY(-5deg) rotateX(2deg);transition:transform .5s}.architecture:hover,.architecture:focus-within{transform:perspective(1200px) rotateY(0) rotateX(0)}.panel-bar,.panel-bottom{padding:15px 20px;display:flex;justify-content:space-between;gap:15px;font-size:9px;color:var(--muted)}.panel-bar{border-bottom:1px solid var(--line)}.panel-bar>span:first-child{color:var(--lime)}.panel-bottom{border-top:1px solid var(--line);font-size:8px}.panel-bottom>span:last-child{color:var(--lime)}.architecture-body{padding:24px 28px 28px;background-image:radial-gradient(#53694b44 .7px,transparent .7px);background-size:16px 16px}.architecture-caption{font-size:8px;color:#a4b49b;margin-bottom:20px}.layer{display:flex;align-items:center;gap:18px;padding:17px;border:1px solid #52624a;background:#1b2d25;transition:background .2s,border-color .2s,transform .2s}.layer:hover{background:#2b3d2a;border-color:var(--lime);transform:translateX(4px)}.layer-num{font:10px Consolas,monospace;color:#a6b692}.layer>div{display:grid;gap:6px}.layer strong{font-size:15px;font-weight:550;letter-spacing:-.025em}.layer div>span{font:9px Consolas,monospace;color:var(--muted)}.layer-icon{margin-left:auto;color:var(--lime);font:19px Consolas,monospace}.connector{height:25px;display:flex;align-items:center;gap:12px;margin-left:29px;color:#91a07d;font:7px Consolas,monospace;letter-spacing:.15em}.connector i{height:100%;width:1px;background:#78920c;position:relative}.connector i:after{content:'';position:absolute;left:-2px;top:0;width:5px;height:5px;background:var(--lime);animation:packet 3s linear infinite}.connector:nth-of-type(4) i:after{animation-delay:1s}@keyframes packet{from{transform:translateY(0);opacity:0}30%{opacity:1}to{transform:translateY(22px);opacity:0}}
.stack-strip{background:var(--deep);border-block:1px solid var(--line)}.stack-strip>.wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;padding-block:26px}.stack-strip span{font-size:16px;color:#d3dcd1;font-weight:500;letter-spacing:-.04em}.stack-strip .mono{font-size:9px;letter-spacing:.12em;color:#8c9c8e}.section{padding-block:110px}.section-head{display:grid;grid-template-columns:1fr 2fr;gap:50px;margin-bottom:50px}.label{color:var(--lime);font-size:9px}.section-head>.label{padding-top:10px}h2{font-size:clamp(34px,4.2vw,59px);font-weight:500;letter-spacing:-.055em;line-height:1.12}h2 span{color:#92a58e}.section-head>div>p{max-width:560px;color:var(--muted);font-size:14px;line-height:1.8;margin-top:24px}.explorer{display:grid;grid-template-columns:1fr 2fr;border:1px solid var(--line);background:var(--deep)}.explorer-nav{border-right:1px solid var(--line);padding:18px}.explorer-nav a{display:flex;align-items:center;gap:14px;padding:23px 16px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.explorer-nav a span{font:9px Consolas,monospace;color:#8b9b81}.explorer-nav a b{margin-left:auto;font-size:16px;font-weight:400}.explorer-nav a:hover,.explorer-nav a.selected{background:var(--lime);color:var(--ink)}.explorer-nav a.selected span{color:#3e5022}.expert-panel{padding:38px 44px;border-bottom:1px solid var(--line)}.expert-panel:last-child{border-bottom:0}.enhanced .expert-panel{border:0;min-height:390px;animation:panel-in .3s ease}.panel-kicker{color:#99ad87;font-size:9px}.expert-panel h3{font-size:30px;font-weight:500;letter-spacing:-.04em;line-height:1.2;margin:20px 0}.expert-panel>p:not(.panel-kicker){font-size:13px;line-height:1.9;color:var(--muted);max-width:590px}.flow{display:flex;align-items:center;gap:10px;margin-block:28px}.flow>span{flex:1;text-align:center;border:1px solid #3a4e37;padding:12px 5px;font:10px Consolas,monospace;color:#d2dfc4}.flow i{font-style:normal;color:#7f935b}.tags{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}.tags li{font:9px Consolas,monospace;border:1px solid var(--line);padding:7px 10px;color:var(--muted)}@keyframes panel-in{from{opacity:.4;transform:translateY(5px)}to{opacity:1;transform:none}}
.projects{background:var(--paper);color:var(--ink)}.projects .label{color:#596d11}.projects h2 span{color:#788777}.projects .section-head>div>p{color:#66736f}.project-feature{display:grid;grid-template-columns:1fr 1fr;border:1px solid #cbd2c5}.network-art{min-height:370px;position:relative;overflow:hidden;background:radial-gradient(ellipse at center,#304730,var(--ink) 70%);display:grid;place-items:center}.network-art>.mono:first-child{position:absolute;top:25px;left:25px;color:var(--lime);font-size:9px}.orbit{position:absolute;border:1px solid #788f4855;width:240px;height:240px;border-radius:50%;transform:rotate(-28deg) scaleX(1.55)}.orbit-two{transform:rotate(35deg) scaleX(1.55);width:190px;height:190px}.network-core{display:grid;place-content:center;width:94px;height:94px;border:1px solid #829558;background:var(--panel);font-size:42px;font-weight:800;letter-spacing:-.12em;z-index:1;box-shadow:0 0 50px #d8f36b11;color:var(--paper)}.network-core span{display:contents;color:var(--lime)}.node{position:absolute;background:#223329;border:1px solid #6b7d4b;color:var(--lime);padding:9px 13px;font:8px Consolas,monospace;letter-spacing:.12em}.n1{left:13%;top:29%}.n2{right:9%;top:37%}.n3{left:29%;bottom:20%}.art-caption{position:absolute;bottom:22px;color:#9aad91;font-size:8px}.project-copy{padding:42px;display:flex;flex-direction:column;align-items:flex-start}.project-copy h3{font-size:34px;letter-spacing:-.05em;font-weight:600;margin:23px 0 18px}.project-copy>p:not(.label),.project-card>p{font-size:13px;line-height:1.9;color:#66736f}.projects .tags{margin-top:24px}.projects .tags li{border-color:#cbd2c5;color:#56664b}.project-link{display:flex;justify-content:space-between;align-items:center;width:100%;border-top:1px solid #cbd2c5;padding-top:18px;margin-top:32px;font-size:11px;font-weight:650}.project-link span{font-size:21px}.project-link:hover{color:#52670b}.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}.project-card{display:flex;flex-direction:column;border:1px solid #cbd2c5;padding:30px;background:#edeee6}.project-card-top{display:flex;justify-content:space-between;font-size:8px;color:#607147}.project-card h3{font-size:26px;letter-spacing:-.04em;font-weight:600;margin-bottom:16px}.project-card>p{margin-bottom:26px}.project-card .project-link{margin-top:auto}.waveform{height:115px;display:flex;align-items:center;gap:7px;padding-inline:10px}.waveform i{width:8px;height:20%;background:#8b9e57}.waveform i:nth-child(3n){height:46%;background:#566b39}.waveform i:nth-child(4n){height:65%}.waveform i:nth-child(5n){height:32%}.community-art{display:flex;align-items:center;height:115px;padding-inline:10px}.community-art span{display:grid;place-items:center;width:48px;height:48px;border:1px solid #afba9c;color:#536c38;font-family:Consolas,monospace;font-size:20px}.community-art i{width:52px;height:1px;background:#afba9c}.about{display:grid;grid-template-columns:1fr 1.3fr;gap:100px;align-items:center}.about-photo{max-width:410px;position:relative;padding:12px;border:1px solid var(--line)}.about-photo img{aspect-ratio:1/1.1;object-fit:cover;filter:saturate(.45)}.photo-caption{display:flex;justify-content:space-between;gap:16px;padding-top:16px;font-size:8px;color:var(--muted)}.about-copy h2{margin:23px 0 26px}.about-copy>p:not(.label){color:var(--muted);font-size:14px;line-height:1.9;margin-top:18px}.about-links{display:flex;gap:28px;flex-wrap:wrap;padding-top:25px;margin-top:30px;border-top:1px solid var(--line);font-size:11px}.about-links a:hover{color:var(--lime)}.contact{background:var(--lime);color:var(--ink)}.contact .label{color:#4a5b25}.contact h2{font-size:clamp(52px,8vw,112px);letter-spacing:-.07em;margin:35px 0 45px;line-height:1.02}.contact h2 em{font-family:Georgia,serif;font-weight:400}.contact-bottom{display:flex;justify-content:space-between;align-items:end;gap:40px}.contact-bottom p{font-size:13px;line-height:1.9;color:#425029}.contact-mail{font-size:clamp(22px,3vw,38px);letter-spacing:-.05em;white-space:nowrap;border-bottom:1px solid #7b913e;padding-bottom:12px}.contact-mail span{margin-left:35px}.phone{display:inline-block;margin-top:35px;font-size:9px}.contact a:focus-visible{outline-color:var(--ink)}.footer{padding-block:30px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:8px;color:var(--muted)}.footer a:hover{color:var(--lime)}
@media(min-width:1500px){.hero-grid{padding-block:85px}}@media(max-width:1050px){.wrap{width:calc(100% - 64px)}.header{padding-inline:32px}.hero-grid{gap:38px}.hero h1{font-size:59px}.architecture-body{padding:20px}.actions{gap:18px}.text-link{font-size:10px}.section-head{grid-template-columns:1fr 2fr;gap:30px}.about{gap:60px}.project-copy{padding:30px}.expert-panel{padding:32px}.layer{gap:12px}.layer div>span{font-size:8px}.contact-bottom{align-items:start;flex-direction:column;gap:25px}}
@media(max-width:760px){html{scroll-padding-top:95px}.wrap{width:calc(100% - 40px)}.header{min-height:76px;padding:16px 20px;gap:14px}.identity small{display:none}.header nav{gap:19px;font-size:10px}.header-contact{padding:8px 10px;font-size:10px}.header-contact span{margin-left:8px}.hero{padding-top:25px}.hero-top{align-items:flex-start;flex-direction:column;gap:14px}.hero-top .mono{font-size:8px}.hero-grid{grid-template-columns:minmax(0,1fr);gap:45px;padding:38px 0 42px}.hero h1{font-size:clamp(44px,8.8vw,66px)}.intro{font-size:14px;max-width:550px;margin-top:25px}.architecture{transform:none;box-shadow:8px 8px 0 #1b2b25;max-width:560px;width:100%;justify-self:center}.architecture-body{padding:24px}.layer div>span{font-size:10px}.hero-foot{font-size:7px;gap:16px}.hero-foot>span:last-child span{margin-left:4px}.stack-strip>.wrap{justify-content:flex-start;gap:19px;padding-block:22px}.stack-strip span{font-size:14px}.stack-strip .mono{width:100%}.section{padding-block:70px}.section-head{grid-template-columns:1fr;gap:22px;margin-bottom:32px}.section-head>.label{padding-top:0}h2{font-size:39px}.section-head>div>p{font-size:13px;margin-top:20px}.explorer{grid-template-columns:minmax(0,1fr)}.explorer-nav{display:grid;grid-template-columns:1fr 1fr;padding:10px;border-right:0;border-bottom:1px solid var(--line)}.explorer-nav a{font-size:10px;padding:16px 10px;gap:8px}.explorer-nav a b{font-size:12px}.expert-panel{padding:27px 22px}.expert-panel h3{font-size:28px}.enhanced .expert-panel{min-height:380px}.project-feature{grid-template-columns:1fr}.network-art{min-height:310px}.project-copy{padding:28px}.project-grid{grid-template-columns:1fr;gap:20px;margin-top:20px}.project-card{padding:25px}.about{grid-template-columns:1fr;gap:38px}.about-photo{max-width:340px}.about-copy h2{font-size:48px}.contact h2{font-size:clamp(48px,10vw,76px)}.contact-mail{font-size:29px}.contact-mail span{margin-left:25px}.footer{font-size:8px;gap:20px}.footer>span{order:3;width:100%}}
@media(max-width:380px){.header nav{gap:12px}.header-contact{padding:7px}.hero h1{font-size:43px}.explorer-nav a{font-size:9px}.explorer-nav a span{display:none}.flow{gap:6px}.flow>span{font-size:9px}.layer{padding:14px 10px}.layer div>span{font-size:8px}.layer-icon{font-size:15px}.contact-mail{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.architecture,.architecture:hover,.architecture:focus-within{transform:none}.button:hover,.layer:hover{transform:none}}
/* Allow intrinsic content to shrink inside the mobile grids. */
.project-card,.project-copy,.explorer-content,.expert-panel,.about-copy{min-width:0}.project-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.project-feature{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:760px){.project-grid,.project-feature{grid-template-columns:minmax(0,1fr)}}

/* Readable type scale and navigation */
.hero h1{font-size:clamp(42px,4.7vw,68px);line-height:1.09}.contact h2{font-size:clamp(43px,6vw,80px)}h2,.about-copy h2{font-size:clamp(32px,3.6vw,50px)}.intro,.section-head>div>p,.expert-panel>p:not(.panel-kicker),.project-copy>p:not(.label),.project-card>p,.about-copy>p:not(.label),.contact-bottom p{font-size:16px;line-height:1.8}.mono,.hero-top .mono,.hero-foot,.panel-bar,.panel-bottom,.architecture-caption,.panel-kicker,.label,.photo-caption,.project-card-top,.footer,.phone,.art-caption,.network-art>.mono:first-child{font-size:11px;letter-spacing:.055em}.identity small{font-size:11px}.header nav{gap:23px;font-size:14px;align-items:center}.header nav .switch-area{color:var(--lime);padding-right:23px;border-right:1px solid var(--line)}.header-contact,.button,.text-link,.project-link,.about-links{font-size:14px}.layer strong{font-size:18px}.layer div>span{font-size:12px;line-height:1.5}.layer-num,.connector,.tags li,.node,.stack-strip .mono{font-size:11px}.explorer-nav a{font-size:14px}.explorer-nav a span,.flow>span{font-size:12px}.flow>span{min-width:0;overflow-wrap:anywhere}.hero-foot,.panel-bottom,.photo-caption{flex-wrap:wrap}.hero-note{color:#92a58e}.about{grid-template-columns:1.15fr 1fr;gap:65px}.about-photo{width:100%;max-width:none;overflow:hidden}.about-photo img{aspect-ratio:1.2;object-position:50% 38%}.project-card-top{gap:12px}.waveform{overflow:hidden}.waveform i{flex-shrink:1}.architecture-body{overflow:hidden}.hero-grid>*{min-width:0}.header nav a{white-space:nowrap}
/* Scroll position is visible both along the top edge and around the return button. */
.reading-progress{position:fixed;z-index:40;inset:0 0 auto;height:3px;background:var(--lime);transform:scaleX(var(--reading,0));transform-origin:left;pointer-events:none}.back-top{position:fixed;right:24px;bottom:24px;z-index:30;width:62px;height:72px;padding:0;border:1px solid #52634a;background:var(--deep);color:var(--lime);cursor:pointer;box-shadow:0 8px 30px #0003;transition:opacity .25s,transform .25s}.back-top svg{position:absolute;inset:2px 3px auto;width:54px;height:54px;transform:rotate(-90deg);fill:none;stroke-width:2}.progress-track{stroke:#3a4a38}.progress-ring{stroke:var(--lime);stroke-dasharray:100;stroke-dashoffset:calc(100 - var(--percent,0))}.back-top>span{position:absolute;top:10px;left:0;right:0;font-size:25px}.back-top small{position:absolute;bottom:6px;left:0;right:0;font:10px Consolas,monospace}.back-top:hover{transform:translateY(-4px);background:#26392b}
/* Motion enhances visible content; no content depends on animation to be readable. */
.motion .scroll-reveal{opacity:.15;transform:translateY(35px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--stagger,0ms)}.motion .scroll-reveal.in-view{opacity:1;transform:none}.motion .section-head h2{transition:letter-spacing 1s ease}.motion .section-head.in-view h2{letter-spacing:-.045em}.motion .architecture{transform:perspective(1200px) translateY(var(--arch-y,0px)) rotateY(var(--arch-turn,-5deg)) rotateX(2deg);transition:transform .12s linear}.motion .layer{transform:translateX(var(--layer-x,0px));transition:transform .15s linear,background .25s,border-color .25s}.motion .layer.is-active{border-color:var(--lime);background:#2c402b;box-shadow:inset 3px 0 var(--lime)}.motion .network-art .orbit-one{transform:rotate(var(--orbit-turn,-28deg)) scaleX(1.55)}.motion .network-art .orbit-two{transform:rotate(calc(60deg - var(--orbit-turn,0deg))) scaleX(1.55)}.motion .network-core{transform:scale(var(--core-scale,1));box-shadow:0 0 65px #d8f36b22}.motion .waveform i{transform-origin:center;transform:scaleY(var(--wave-scale,1));transition:transform .12s linear}.motion .waveform i:nth-child(3n){transform:scaleY(calc(1.7 - var(--wave-scale,1)))}.motion .about-photo img{transform:scale(1.035) translateY(var(--portrait-y,0px));transition:transform .12s linear}.motion .contact h2{transform:translateX(var(--contact-x,0px));transition:transform .12s linear}.project-card{transition:box-shadow .3s,border-color .3s}.project-card:hover{border-color:#80964c;box-shadow:0 15px 35px #15222012}
@media(max-width:1100px){.identity small{display:none}.header nav{gap:18px}.header nav .switch-area{padding-right:18px}.hero-grid{gap:35px}.about{gap:40px}.layer{gap:10px}.architecture-body{padding:20px}.layer div>span{font-size:11px}}
@media(max-width:760px){html{scroll-padding-top:135px}.header{display:grid;grid-template-columns:1fr auto;gap:12px;padding:12px 20px}.header nav{grid-row:2;grid-column:1/-1;display:flex;justify-content:space-between;gap:12px;font-size:12px}.header-contact{grid-column:2;grid-row:1;font-size:12px}.header nav .switch-area{padding-right:12px}.hero-note{display:none}.hero h1{font-size:clamp(39px,7.8vw,57px)}.hero-top .mono{font-size:10px}.hero-foot{font-size:10px}.panel-bar,.panel-bottom,.architecture-caption{font-size:10px}.architecture-body{padding:20px 16px}.layer{padding:16px 12px;gap:10px}.layer div>span{font-size:11px}.layer strong{font-size:17px}.layer-icon{font-size:17px}.intro,.section-head>div>p,.expert-panel>p:not(.panel-kicker),.project-copy>p:not(.label),.project-card>p,.about-copy>p:not(.label),.contact-bottom p{font-size:15px}.expert-panel{padding:26px 18px}.explorer-nav a{font-size:12px;padding:16px 8px}.explorer-nav a span{font-size:10px}.project-copy h3{font-size:30px}.project-card-top{font-size:10px}.about{grid-template-columns:minmax(0,1fr)}.about-photo{max-width:580px}.about-photo img{aspect-ratio:1.2}.contact h2{font-size:clamp(40px,8vw,60px)}.back-top{right:14px;bottom:14px;width:56px;height:66px}.back-top svg{width:48px;height:48px}.back-top>span{top:7px}.footer{padding-bottom:100px}.motion .architecture{transform:translateY(var(--arch-y,0px))}.photo-caption{font-size:10px}.actions{gap:22px}}
@media(max-width:380px){.header nav{gap:8px;font-size:11px}.header nav .switch-area{padding-right:8px}.layer-num{display:none}.layer div>span{font-size:11px}.flow{gap:5px}.flow>span{font-size:11px}.explorer-nav a{font-size:11px}}
@media(prefers-reduced-motion:reduce){.motion .scroll-reveal{opacity:1;transform:none}.motion .architecture,.motion .layer,.motion .about-photo img,.motion .contact h2{transform:none}.back-top:hover{transform:none}}
.about-photo img{width:100%;height:auto;aspect-ratio:6/5}

/* A circular return control with a readable percentage inside the progress ring. */
.back-top{width:72px;height:72px;border-radius:50%;border:1px solid #4d6048;background:#14231ff5;box-shadow:0 8px 28px #0004;backdrop-filter:blur(12px)}.back-top svg{inset:4px;width:62px;height:62px;stroke-width:1.6}.back-top .progress-ring{stroke-linecap:round}.back-top>span{top:10px;font-size:26px;line-height:1.2}.back-top small{bottom:14px;font-size:12px;line-height:1}.back-top:before{content:'Nach oben';position:absolute;right:calc(100% + 12px);top:20px;white-space:nowrap;padding:8px 12px;border:1px solid var(--line);background:var(--deep);color:var(--paper);font-size:12px;opacity:0;transform:translateX(5px);transition:opacity .2s,transform .2s;pointer-events:none}.back-top:hover:before,.back-top:focus-visible:before{opacity:1;transform:none}.back-top:hover{border-color:var(--lime);box-shadow:0 8px 30px #0005,0 0 20px #d8f36b10}
.explorer-stage{position:relative}.scroll-slides>.explorer{position:sticky;top:var(--sticky-top);align-items:stretch;isolation:isolate}.scroll-slides>.explorer:after{content:'';position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(var(--chapter-progress,0));transform-origin:left;pointer-events:none}.explorer-content{overflow:hidden}.enhanced .expert-panel{animation:expert-slide .48s cubic-bezier(.2,.7,.2,1) both}.explorer-nav a{transition:background .3s,color .3s}.explorer-nav a.selected b{transform:rotate(45deg)}.explorer-nav a b{transition:transform .3s}@keyframes expert-slide{from{opacity:0;transform:translateY(var(--slide-from,28px))}to{opacity:1;transform:none}}
@media(max-width:760px){.back-top{width:64px;height:64px}.back-top svg{inset:3px;width:56px;height:56px}.back-top>span{top:8px;font-size:24px}.back-top small{bottom:12px;font-size:11px}.back-top:before{display:none}}
@media(prefers-reduced-motion:reduce){.enhanced .expert-panel{animation:none}.back-top:before{transition:none}}