/* Layout: one dark world; particles fixed behind everything, terrain flight as a sticky scroll stage for the projects */
:root{
  --bg:#06090b; --panel:rgba(12,16,20,.72); --panel-solid:#0e1318; --line:rgba(255,255,255,.12);
  --fg:#eef0f2; --dim:#a3a9b3; --mute:#6c737e;
  --mag:#ff2d9a; --orange:#ff8a3d; --cyan:#8fe3ff;
  --display:"Sora",system-ui,sans-serif; --text:"Inter Tight",system-ui,sans-serif; --mono:"JetBrains Mono",ui-monospace,monospace; --serif:"Instrument Serif",Georgia,serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--bg);z-index:30}
a{color:inherit}
em{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em;color:#fff}
h1,h2,h3,h4{text-wrap:balance}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
#bg{position:fixed;inset:0;width:100%;height:100%;z-index:0;transition:opacity .8s}
.vignette{position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(120% 90% at 50% 40%,transparent 40%,rgba(6,9,11,.85))}
main,footer{position:relative;z-index:1}
.eyebrow{font:600 12px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--mag);margin:0 0 14px}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(6,9,11,.55);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.scrolled{border-color:var(--line);background:rgba(6,9,11,.8)}
.nav-in{max-width:1180px;margin:0 auto;padding:12px max(20px,env(safe-area-inset-right,0px)) 12px max(20px,env(safe-area-inset-left,0px));display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font:700 16px var(--display);text-decoration:none;letter-spacing:-.01em}
.brand .ring{width:18px;height:18px;border:3px solid var(--mag);border-radius:50%}
.nav ul{display:flex;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{display:block;padding:7px 12px;border-radius:999px;text-decoration:none;font-size:14px;color:var(--dim);transition:color .2s,background .2s}
.nav ul a:hover,.nav ul a.on{color:#fff;background:rgba(255,255,255,.08)}
.search-btn{display:flex;align-items:center;gap:8px;font:500 14px var(--text);color:var(--dim);background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;padding:7px 10px 7px 12px;cursor:pointer}
.search-btn:hover{color:#fff;border-color:rgba(255,255,255,.3)}
kbd{font:600 11px var(--mono);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--mute)}
@media (max-width:760px){.nav ul{display:none}.search-btn{margin-left:auto}.search-btn kbd{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font:600 15px var(--text);padding:12px 20px;border-radius:999px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.04);color:#fff;text-decoration:none;cursor:pointer;transition:transform .2s,background .2s,border-color .2s}
.btn:hover{transform:translateY(-2px);border-color:#fff}
.btn.primary{background:#fff;color:#06090b;border-color:#fff}
.btn.primary:hover{background:var(--cyan);border-color:var(--cyan)}
.btn[disabled]{opacity:.5;cursor:wait;transform:none}
.link{background:none;border:0;padding:0;font:inherit;color:#fff;text-decoration:underline;text-decoration-color:var(--mag);text-underline-offset:3px;cursor:pointer}

/* hero */
.hero{min-height:calc(100svh - 60px);display:flex;flex-direction:column;justify-content:center;padding-block:60px 90px;position:relative}
.hero h1{font:800 clamp(52px,9.5vw,132px)/.9 var(--display);letter-spacing:-.045em;margin:0;text-shadow:0 6px 50px rgba(0,0,0,.5)}
.hero .lead{max-width:56ch;font-size:clamp(17px,1.6vw,20px);color:#cfd3da;margin:26px 0 0}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:56px 0 0;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden;max-width:900px}
.facts div{background:rgba(8,11,14,.7);padding:14px 16px;backdrop-filter:blur(8px)}
.facts dt{font:600 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.facts dd{margin:4px 0 0;font-weight:600;font-size:15px}
.scrollhint{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;gap:10px;align-items:center;font:600 11px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin:0}
.scrollhint i{width:16px;height:26px;border:2px solid currentColor;border-radius:9px;position:relative}
.scrollhint i::after{content:"";position:absolute;left:50%;top:5px;width:2px;height:6px;background:currentColor;transform:translateX(-50%);animation:sc 1.5s infinite}
@keyframes sc{60%{transform:translate(-50%,7px);opacity:0}}
@media (max-width:760px){.facts{grid-template-columns:1fr 1fr}}

/* bahn (terrain flight) */
.bahn{position:relative}
.bahn-stage{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:#070b0d}
#terrain{position:absolute;inset:0;width:100%;height:100%;display:block}
.bahn-head{position:relative;padding-top:86px;pointer-events:none}
.bahn-head h2{font:800 clamp(34px,5vw,64px)/.95 var(--display);letter-spacing:-.035em;margin:0;text-shadow:0 4px 30px rgba(0,0,0,.7)}
.bahn-legend{position:absolute;right:max(20px,env(safe-area-inset-right,0px));top:50%;transform:translateY(-50%);list-style:none;margin:0;padding:0;display:grid;gap:10px}
.bahn-legend li{display:flex;align-items:center;gap:10px;justify-content:flex-end;font:600 12px var(--mono);color:var(--mute);transition:color .3s}
.bahn-legend li i{width:14px;height:14px;border:2px solid currentColor;border-radius:50%;transition:all .3s}
.bahn-legend li.on{color:#fff}
.bahn-legend li.on i{border-color:var(--mag);background:var(--mag);box-shadow:0 0 12px var(--mag)}
.bahn-steps{position:relative;margin-top:-100vh;margin-top:-100svh;pointer-events:none}
.step{height:100vh;height:100svh;display:flex;align-items:flex-end;padding:0 max(20px,env(safe-area-inset-right,0px)) 8vh max(20px,env(safe-area-inset-left,0px))}
.step:first-child{height:60vh}
.step .wrapx{max-width:1180px;margin:0 auto;width:100%}
.pcard{pointer-events:auto;max-width:520px;background:var(--panel);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:22px;padding:24px 26px}
.pcard .num{display:flex;align-items:center;gap:10px;font:600 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--mag)}
.pcard .num i{width:22px;height:22px;border:3px solid var(--mag);border-radius:50%}
.pcard h3{font:800 34px/1.05 var(--display);letter-spacing:-.03em;margin:10px 0 4px}
.pcard .kurz{color:#fff;font-weight:600;margin:0 0 8px}
.pcard p{color:var(--dim);margin:0 0 14px}
.pcard .meta{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 16px;padding:0;list-style:none}
.meta li,.chips li{font:500 12px var(--mono);border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:#cfd3da;background:rgba(255,255,255,.03)}
@media (max-width:760px){.bahn-legend{display:none}.pcard{padding:20px}.pcard h3{font-size:28px}}

/* blocks */
.block{padding-block:120px 40px}
.block-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:36px}
.block-head h2{font:800 clamp(34px,5vw,60px)/.98 var(--display);letter-spacing:-.035em;margin:0}

/* grid */
.filters{display:flex;flex-wrap:wrap;gap:6px}
.filters button{font:600 13px var(--text);color:var(--dim);background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:999px;padding:7px 14px;cursor:pointer}
.filters button[aria-pressed="true"]{background:#fff;color:#06090b;border-color:#fff}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tile{position:relative;text-align:left;font:inherit;color:inherit;background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:20px;padding:22px;cursor:pointer;display:flex;flex-direction:column;gap:8px;transition:transform .25s,border-color .25s;overflow:hidden;min-width:0}
.tile::before{content:"";position:absolute;inset:0;background:radial-gradient(260px circle at var(--mx,50%) var(--my,0%),rgba(255,45,154,.16),transparent 60%);opacity:0;transition:opacity .3s;pointer-events:none}
.tile:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.3)}
.tile:hover::before{opacity:1}
.tile .top{display:flex;justify-content:space-between;align-items:center;font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
.tile .st{color:var(--cyan)}
.tile h3{font:700 24px/1.1 var(--display);letter-spacing:-.02em;margin:6px 0 0}
.tile p{margin:0;color:var(--dim);font-size:15px}
.tile .more{margin-top:auto;padding-top:8px;font-weight:600;font-size:14px;color:#fff}
.tile[hidden]{display:none}
@media (max-width:900px){.grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}

/* cv */
.cv{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px;align-items:start}
.cv-side{display:grid;gap:14px;position:sticky;top:90px}
.cv-card{background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:20px;padding:22px}
.cv-card h3{font:700 22px var(--display);margin:0 0 12px}
.cv-card h4{font:600 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin:16px 0 8px}
.cv-card h4:first-child{margin-top:0}
.cv-card dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0;font-size:14px}
.cv-card dt{color:var(--mute)}
.cv-card dd{margin:0;overflow-wrap:anywhere}
.chips{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}
.cv-main{background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:20px;padding:8px 26px 26px}
.cv-h{font:600 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mag);margin:26px 0 6px}
.tl{list-style:none;margin:0;padding:0}
.tl li{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;padding:16px 0;border-bottom:1px solid var(--line);position:relative}
.tl li:last-child{border-bottom:0}
.tl .when{font:600 13px var(--mono);color:var(--dim);padding-top:3px;font-variant-numeric:tabular-nums}
.tl b{display:block;font:700 18px var(--display);letter-spacing:-.01em}
.tl span:not(.when){display:block;color:#cfd3da;font-size:15px}
.tl p{margin:6px 0 0;color:var(--dim);font-size:15px}
@media (max-width:860px){.cv{grid-template-columns:1fr}.cv-side{position:static}.tl li{grid-template-columns:1fr;gap:4px}}

/* ol */
.ol-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:28px;align-items:start}
.ol-text{font-size:18px;color:#cfd3da;max-width:60ch}
.ol-text p{margin:0 0 16px}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:0;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.stats div{background:rgba(8,11,14,.75);padding:22px;backdrop-filter:blur(10px)}
.stats dt{font:800 46px/1 var(--display);letter-spacing:-.03em;color:var(--orange);font-variant-numeric:tabular-nums}
.stats dd{margin:8px 0 0;color:var(--dim);font-size:14px}
@media (max-width:860px){.ol-grid{grid-template-columns:1fr}}

/* contact */
.contact{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:24px;align-items:start}
form{background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:22px;padding:26px;display:grid;gap:16px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:grid;gap:6px;font:600 13px var(--text);color:var(--dim)}
input,select,textarea{font:16px var(--text);color:#fff;background:rgba(0,0,0,.35);border:1px solid var(--line);border-radius:12px;padding:12px 14px;width:100%;min-width:0}
textarea{resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(143,227,255,.18)}
input[aria-invalid="true"],textarea[aria-invalid="true"]{border-color:#ff6b6b}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-status{margin:0;font-size:15px}
.form-status.ok{color:#6ee5a0}
.form-status.err{color:#ff8b8b}
.direct{background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:22px;padding:26px}
.direct h3{font:700 22px var(--display);margin:0 0 12px}
.direct ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.direct li{display:grid;gap:2px}
.direct li span{font:600 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.direct a,.direct b{font-weight:600;overflow-wrap:anywhere}
.sel{user-select:all}
@media (max-width:860px){.contact{grid-template-columns:1fr}.row2{grid-template-columns:1fr}}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:100px;padding-block:24px max(24px,env(safe-area-inset-bottom,0px));color:var(--mute);font-size:14px;background:rgba(6,9,11,.8)}
.foot-in{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* overlay: project + search */
.ov{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));background:rgba(3,5,7,.7);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.ov[hidden]{display:none!important}
.md{position:relative;width:min(780px,100%);max-height:calc(100svh - 40px);overflow:auto;background:linear-gradient(170deg,#121820,#0a0e12);border:1px solid var(--line);border-radius:26px;padding:clamp(22px,4vw,40px);box-shadow:0 40px 100px -30px #000;animation:mdIn .45s cubic-bezier(.2,.9,.2,1) both}
@keyframes mdIn{from{transform:perspective(900px) rotateX(10deg) translateY(30px) scale(.96);opacity:0}}
.x{position:absolute;right:16px;top:14px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;font-size:22px;line-height:1;cursor:pointer}
.md .k{font:600 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mag)}
.md h2{font:800 clamp(36px,6vw,56px)/1 var(--display);letter-spacing:-.04em;margin:8px 0 6px}
.md .kurz{font-size:19px;color:#fff;margin:0 0 20px}
.md h4{font:600 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin:24px 0 8px}
.md p{color:#cfd3da;margin:0 0 12px}
.md ul.feat{margin:0;padding-left:20px;color:#cfd3da;display:grid;gap:6px}
.md .facts2{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:20px 0 0}
.md .facts2 div{background:#0d1217;padding:12px 14px}
.md .facts2 dt{font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
.md .facts2 dd{margin:3px 0 0;font-weight:600;font-size:15px}
.md .links{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.md .nav2{display:flex;justify-content:space-between;gap:10px;margin-top:28px;padding-top:18px;border-top:1px solid var(--line)}
.md .nav2 button{background:none;border:0;color:var(--dim);font:600 14px var(--text);cursor:pointer;padding:6px 0}
.md .nav2 button:hover{color:#fff}
@media (max-width:600px){.md .facts2{grid-template-columns:1fr}}
.search{width:min(640px,100%);align-self:start;margin-top:10vh;background:#0e1318;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 40px 100px -30px #000}
.search-in{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line);color:var(--dim)}
.search-in input{border:0;background:none;padding:0;font-size:18px;box-shadow:none}
.search-in input:focus{box-shadow:none}
#results{list-style:none;margin:0;padding:8px;max-height:min(60vh,480px);overflow:auto}
#results li{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;padding:10px 12px;border-radius:12px;cursor:pointer}
#results li[aria-selected="true"],#results li:hover{background:rgba(255,255,255,.07)}
#results .ty{grid-row:span 2;font:600 10px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--mag);border:1px solid rgba(255,45,154,.4);border-radius:6px;padding:3px 6px;align-self:center}
#results b{font-weight:600}
#results small{color:var(--mute)}
#results .none{display:block;color:var(--mute);padding:18px;cursor:default}
#results .none:hover{background:none}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

/* loader: an OL map draws itself, then the start triangle, course line and first control */
.loader{position:fixed;inset:0;z-index:100;display:grid;place-content:center;justify-items:center;gap:14px;background:var(--bg);transition:opacity .6s,visibility .6s}
.loader.done{opacity:0;visibility:hidden}
.loader.done .ld-map{transform:scale(1.25)}
.ld-map{width:min(200px,46vw);height:auto;transition:transform .7s cubic-bezier(.6,0,.2,1);overflow:visible}
.ld-c{fill:none;stroke:#c06a1c;stroke-width:1.6;stroke-dasharray:480;stroke-dashoffset:480;animation:ldDraw 1.1s cubic-bezier(.6,0,.2,1) forwards}
.ld-c.c1{stroke-width:2.6}
.ld-c.c2{animation-delay:.18s}
.ld-c.c3{animation-delay:.34s}
.ld-start,.ld-line,.ld-ctl{fill:none;stroke:var(--mag);stroke-width:3;stroke-linejoin:round;stroke-linecap:round}
.ld-start{stroke-dasharray:60;stroke-dashoffset:60;animation:ldDraw .4s .75s forwards}
.ld-line{stroke-dasharray:62;stroke-dashoffset:62;animation:ldDraw .45s 1s forwards}
.ld-ctl{stroke-dasharray:110;stroke-dashoffset:110;animation:ldDraw .5s 1.3s forwards,ldPulse 1.2s 1.8s ease-in-out infinite}
@keyframes ldDraw{to{stroke-dashoffset:0}}
@keyframes ldPulse{50%{stroke-width:5}}
.ld-name{font:800 22px var(--display);letter-spacing:-.02em;opacity:0;animation:ldIn .5s .5s forwards}
.ld-sub{display:flex;gap:12px;font:600 11px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mute);opacity:0;animation:ldIn .5s .7s forwards}
.ld-sub b{color:var(--fg);font-variant-numeric:tabular-nums;min-width:4ch;text-align:right}
@keyframes ldIn{to{opacity:1}}
.loader.quick *{animation-duration:.01s!important;animation-delay:0s!important}
@media (prefers-reduced-motion:reduce){.ld-c,.ld-start,.ld-line,.ld-ctl{stroke-dashoffset:0}.ld-name,.ld-sub{opacity:1}}