/* tschirner.ai v7 – Gestaltung im iMapU-Look: Schwarz, Violett, feine Inter-Überschriften */
:root{
  --bg:#05030a; --bg-2:#0b0616; --ink:#f9f7ff; --muted:#bdb4ca; --dim:#8e86a0;
  --purple:#7b2cff; --purple-soft:#c8b5ff; --purple-dark:#4b18a8; --amber:#f4c96f;
  --line:rgba(200,181,255,.16); --line-strong:rgba(200,181,255,.32);
  --card:linear-gradient(160deg,rgba(200,181,255,.08),rgba(255,255,255,.02));
  --grad:linear-gradient(110deg,#8a4bff,#c8b5ff 55%,#7b2cff);
  --shell:min(1180px,calc(100% - 48px));
  --font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:var(--purple-soft);text-underline-offset:4px}
h1,h2,h3{margin:0;font-weight:300;letter-spacing:-.02em;line-height:1.12;text-wrap:balance}
h1{font-size:clamp(36px,5.2vw,62px)}
h2{font-size:clamp(27px,3.4vw,42px)}
h3{font-size:19px;font-weight:500;letter-spacing:-.005em;line-height:1.3}
p{margin:0}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.shell{width:var(--shell);margin-inline:auto}
:focus-visible{outline:2px solid var(--purple-soft);outline-offset:3px;border-radius:6px}
.skip-link{position:absolute;left:-999px;top:8px;z-index:200;background:#fff;color:#000;padding:8px 14px;border-radius:8px}
.skip-link:focus{left:12px}

/* ---------- Navigation ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:100;display:flex;align-items:center;gap:28px;padding:16px max(24px,calc((100% - 1180px)/2));
  transition:background .35s,border-color .35s,opacity .8s,transform .8s;border-bottom:1px solid transparent}
.nav.is-scrolled,.nav.is-open{background:rgba(5,3,10,.78);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);border-bottom-color:var(--line)}
.brand{font-size:21px;font-weight:260;letter-spacing:.05em;color:rgba(255,255,255,.9);text-decoration:none;white-space:nowrap}
.brand b{font-weight:260;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{color:rgba(249,247,255,.72);text-decoration:none;font-size:14.5px;position:relative;padding:6px 0;transition:color .2s}
.nav-links a:hover,.nav-links a[aria-current=page]{color:#fff}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-links a:hover::after,.nav-links a[aria-current=page]::after{transform:scaleX(1)}
.nav-links .ext::before{content:"↗";font-size:11px;margin-right:5px;opacity:.6}
.nav-cta{font-size:14px;font-weight:600;color:#fff;text-decoration:none;padding:10px 20px;border-radius:999px;background:linear-gradient(135deg,var(--purple),var(--purple-dark));
  box-shadow:0 8px 26px rgba(123,44,255,.35);transition:transform .2s,box-shadow .2s;white-space:nowrap}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 32px rgba(123,44,255,.5)}
.menu-button{display:none;margin-left:auto;background:none;border:1px solid var(--line-strong);color:#fff;border-radius:999px;padding:8px 16px;font:inherit;font-size:14px;cursor:pointer}
.intro-running .nav{opacity:0;transform:translateY(-14px);pointer-events:none}

/* ---------- Schaltflächen ---------- */
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.button{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s,background .2s;cursor:pointer;border:0;font-family:inherit}
.button-primary{color:#fff;background:linear-gradient(135deg,var(--purple),var(--purple-dark));box-shadow:0 10px 34px rgba(123,44,255,.4)}
.button-primary:hover{transform:translateY(-2px);box-shadow:0 16px 42px rgba(123,44,255,.55)}
.button-secondary{color:var(--ink);border:1px solid var(--line-strong);background:rgba(255,255,255,.03)}
.button-secondary:hover{border-color:var(--purple-soft);background:rgba(200,181,255,.08);transform:translateY(-2px)}
.button .arrow{transition:transform .2s}.button:hover .arrow{transform:translateX(4px)}

/* ---------- Startseite: Bühne mit 3D-Intro ---------- */
.hero{position:relative;height:100svh;min-height:660px;max-height:1200px;overflow:hidden;isolation:isolate;
  background:radial-gradient(1200px 700px at 50% 108%,rgba(123,44,255,.3),transparent 62%),radial-gradient(900px 500px at 50% -10%,rgba(123,44,255,.14),transparent 60%),var(--bg)}
.hero canvas,.page-hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:160px;background:linear-gradient(180deg,transparent,var(--bg));pointer-events:none}
.intro-lines{position:absolute;inset:0;display:grid;place-items:start center;padding-top:31vh;perspective:900px;perspective-origin:50% 12%;pointer-events:none}
.intro-lines div{grid-area:1/1;line-height:1.12;font-size:clamp(30px,5.6vw,74px);font-weight:250;letter-spacing:-.025em;text-align:center;padding:0 24px;opacity:0;visibility:hidden;will-change:transform,opacity,filter;text-shadow:0 2px 26px rgba(5,3,10,.95),0 0 70px rgba(123,44,255,.55)}
.intro-lines div strong{font-weight:250;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stage{position:absolute;inset:0;perspective:900px;display:flex;justify-content:center;pointer-events:none}
.hero-copy{width:min(900px,calc(100% - 40px));text-align:center;padding-top:clamp(104px,15vh,168px);will-change:transform,opacity}
.hero-copy h1{font-size:clamp(38px,6vw,76px);font-weight:250;letter-spacing:-.03em}
.hero-copy .lead{margin:22px auto 0;max-width:640px}
.hero-copy .actions{justify-content:center}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--purple-soft);margin-bottom:18px}
.lead{font-size:clamp(16.5px,1.5vw,19px);color:var(--muted);line-height:1.7}
.stations{position:absolute;inset:0;pointer-events:none}
.station{position:absolute;left:0;top:0;width:176px;text-align:center;opacity:0;will-change:transform,opacity}
.station span{display:block;font-size:11px;letter-spacing:.2em;color:var(--purple-soft);font-weight:600}
.station b{display:block;font-size:17px;font-weight:400;letter-spacing:-.005em;margin-top:3px}
.station small{display:block;font-size:12.5px;color:var(--dim);line-height:1.45;margin-top:5px}
.hero-ui{position:absolute;inset:auto 0 22px 0;display:flex;justify-content:space-between;align-items:center;padding:0 max(24px,calc((100% - 1180px)/2));z-index:2}
.ghost-btn{background:rgba(5,3,10,.5);border:1px solid var(--line);color:var(--muted);font:inherit;font-size:12.5px;padding:7px 15px;border-radius:999px;cursor:pointer;backdrop-filter:blur(8px);transition:color .2s,border-color .2s}
.ghost-btn:hover{color:#fff;border-color:var(--purple-soft)}
.scroll-hint{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);display:flex;align-items:center;gap:10px;opacity:0;transition:opacity .8s .6s}
.scroll-hint i{width:1px;height:30px;background:linear-gradient(180deg,var(--purple-soft),transparent);animation:drip 2.2s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
.intro-done .scroll-hint{opacity:1}
[data-replay]{opacity:0;pointer-events:none;transition:opacity .8s .6s,color .2s,border-color .2s}
.intro-done [data-replay]{opacity:1;pointer-events:auto}
html:not(.js) .hero-copy{opacity:1}
html.js .hero-copy{opacity:0}

/* ---------- Unterseiten-Kopf ---------- */
.page-hero{position:relative;overflow:hidden;isolation:isolate;padding:clamp(140px,19vh,200px) 0 clamp(64px,9vh,100px);
  background:radial-gradient(900px 480px at 78% 120%,rgba(123,44,255,.3),transparent 62%),var(--bg);border-bottom:1px solid var(--line)}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 8%,rgba(5,3,10,.55) 55%,transparent);z-index:-1}
.page-hero h1{max-width:900px}
.page-hero .lead{max-width:720px;margin-top:22px}
.breadcrumb{display:flex;gap:10px;font-size:13px;color:var(--dim);margin-bottom:26px}
.breadcrumb a{color:var(--dim);text-decoration:none}.breadcrumb a:hover{color:#fff}

/* ---------- Abschnitte ---------- */
.section{padding:clamp(72px,10vw,128px) 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(123,44,255,.07),transparent 70%),var(--bg-2);border-block:1px solid var(--line)}
.section-heading{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,5vw,72px);align-items:end;margin-bottom:clamp(36px,5vw,60px)}
.section-intro{color:var(--muted);font-size:17px;line-height:1.7}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.g5{grid-template-columns:repeat(5,1fr)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,72px);align-items:center}

/* Karten mit 3D-Neigung und Lichtpunkt unter dem Mauszeiger */
.card{position:relative;padding:28px 26px 30px;border-radius:14px;border:1px solid var(--line);background:var(--card);
  transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateZ(0);transition:transform .25s ease-out,border-color .25s,box-shadow .25s;transform-style:preserve-3d}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(340px circle at var(--mx,50%) var(--my,0%),rgba(149,102,255,.2),transparent 62%);opacity:0;transition:opacity .3s;pointer-events:none}
.card:hover{border-color:var(--line-strong);box-shadow:0 24px 60px -20px rgba(123,44,255,.35)}
.card:hover::before{opacity:1}
.card p{color:var(--muted);font-size:15px;margin-top:10px}
.card strong.result{display:block;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13.5px;font-weight:500;color:var(--purple-soft)}
.card .label,.card .number{display:block;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--purple-soft);margin-bottom:14px}
.card .number{font-size:30px;font-weight:200;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:10px}
.card a{color:var(--purple-soft)}
.list{display:grid;gap:0;margin-top:16px}
.list span{padding:12px 0 12px 26px;border-top:1px solid var(--line);color:var(--muted);font-size:15px;position:relative}
.list span::before{content:"";position:absolute;left:2px;top:20px;width:9px;height:9px;border-radius:50%;border:1.5px solid var(--purple-soft)}

/* Methode: Zeitleiste, die beim Scrollen mitwächst */
.steps{position:relative;display:grid;gap:10px;padding-left:44px}
.steps::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;background:var(--line)}
.steps::after{content:"";position:absolute;left:11px;top:8px;width:1px;height:calc((100% - 16px)*var(--p,0));background:linear-gradient(180deg,var(--purple),var(--purple-soft));box-shadow:0 0 14px var(--purple)}
.step{position:relative;padding:20px 0 22px}
.step::before{content:"";position:absolute;left:-39px;top:27px;width:13px;height:13px;border-radius:50%;background:var(--bg);border:1.5px solid var(--purple-soft);box-shadow:0 0 0 5px var(--bg)}
.step span{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--purple-soft)}
.step h3{font-size:22px;font-weight:400;margin-top:6px}
.step p{color:var(--muted);margin-top:8px;max-width:560px}
.sticky{position:sticky;top:120px;align-self:start}

/* Werkzeug-Leiste */
.stack{display:flex;flex-wrap:wrap;gap:10px 12px;justify-content:center;padding:26px 0;border-block:1px solid var(--line)}
.stack span{font-size:13.5px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 15px;background:rgba(123,44,255,.06)}
.stack-label{text-align:center;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:16px}

/* iMapU-Panel mit geneigter Karte */
.imapu{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,70px);align-items:center}
.imapu-visual{perspective:1300px}
.imapu-frame{border-radius:18px;border:1px solid var(--line-strong);background:radial-gradient(600px 400px at 60% 40%,rgba(123,44,255,.3),transparent 70%),#0a0514;padding:26px;
  transform:rotateY(calc(-16deg*var(--tilt,1))) rotateX(calc(7deg*var(--tilt,1)));transform-style:preserve-3d;transition:transform .2s linear;box-shadow:-30px 40px 90px -30px rgba(123,44,255,.45),0 0 0 1px rgba(255,255,255,.03) inset}
.imapu-frame img{width:100%;height:auto;transform:translateZ(46px);filter:drop-shadow(0 26px 34px rgba(0,0,0,.55))}
.imapu-mark{display:inline-flex;align-items:center;gap:12px;margin-bottom:20px}
.imapu-mark svg{width:40px;height:40px}
.imapu-mark span{font-size:28px;font-weight:260;letter-spacing:.05em;color:rgba(255,255,255,.88)}
.imapu-mark b{font-weight:260;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.facts span{border:1px solid var(--line-strong);border-radius:999px;padding:8px 15px;background:rgba(123,44,255,.1);color:#e8ddff;font-size:13.5px}

/* Porträt auf „Über mich" */
.portrait-split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,5vw,72px);align-items:center}
.portrait{margin:0;position:relative}
.portrait::before{content:"";position:absolute;inset:8% -6% -6% 8%;border-radius:22px;background:radial-gradient(closest-side,rgba(123,44,255,.55),transparent);filter:blur(30px);z-index:-1}
.portrait img{width:100%;height:auto;border-radius:18px;border:1px solid var(--line-strong);box-shadow:0 30px 80px -30px rgba(123,44,255,.6)}
.portrait figcaption{margin-top:14px;font-size:13px;color:var(--dim);letter-spacing:.04em}
@media (max-width:1020px){.portrait-split{grid-template-columns:1fr}.portrait{max-width:420px}}

/* FAQ */
.faq{max-width:860px;border-top:1px solid var(--line-strong)}
.faq details{border-bottom:1px solid var(--line-strong)}
.faq summary{cursor:pointer;list-style:none;padding:22px 40px 22px 0;font-size:18px;font-weight:500;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:15px;color:var(--purple-soft);font-size:28px;font-weight:300;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);padding:0 0 24px;max-width:72ch}

/* Abschluss-Band */
.cta-band{position:relative;overflow:hidden;padding:clamp(80px,11vw,140px) 0;text-align:center;background:radial-gradient(800px 420px at 50% 115%,rgba(123,44,255,.45),transparent 65%),var(--bg);border-top:1px solid var(--line)}
.cta-band h2{max-width:820px;margin-inline:auto;font-size:clamp(30px,4.2vw,52px)}
.cta-band p{color:var(--muted);max-width:640px;margin:20px auto 0;font-size:17px}
.cta-band .actions{justify-content:center}

/* Kontakt */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,72px);align-items:start}
.contact-form{display:grid;gap:16px;padding:30px;border-radius:16px;border:1px solid var(--line);background:var(--card)}
.field{display:grid;gap:7px}
.field label{font-size:13px;color:var(--muted);font-weight:500}
.field input,.field select,.field textarea{font:inherit;color:var(--ink);background:rgba(0,0,0,.45);border:1px solid var(--line-strong);border-radius:10px;padding:12px 14px;width:100%;transition:border-color .2s,box-shadow .2s}
.field textarea{min-height:150px;resize:vertical}
.field select option{background:#0b0616}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--purple-soft);box-shadow:0 0 0 3px rgba(123,44,255,.3)}
.form-trap{position:absolute;left:-9999px}
.check-field{display:flex;gap:11px;font-size:13.5px;color:var(--muted);align-items:flex-start}
.check-field input{margin-top:4px;accent-color:var(--purple)}
.form-status{display:none;padding:12px 14px;border-radius:10px;background:rgba(123,44,255,.14);border:1px solid var(--line-strong);font-size:14.5px}
.contact-facts{display:grid;gap:14px;margin-top:30px}
.contact-facts a,.contact-facts button{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font:inherit;background:none;border:0;padding:0;cursor:pointer;text-align:left}
.contact-facts i{flex:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);display:grid;place-items:center;font-style:normal;color:var(--purple-soft);background:rgba(123,44,255,.1)}
.proof{color:var(--dim);font-size:14px;margin-top:14px}
.prose .card p+p{margin-top:12px}

/* Fußzeile */
.site-footer{border-top:1px solid var(--line);background:#030207;padding:60px 0 30px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}
.footer-grid h4{margin:0 0 14px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);font-weight:600}
.footer-grid a{display:block;color:var(--muted);text-decoration:none;padding:4px 0}
.footer-grid a:hover{color:#fff}
.footer-grid p{color:var(--dim);margin-top:14px;max-width:320px}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);color:var(--dim);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Einblenden beim Scrollen – leicht aus der Tiefe gekippt */
html.js [data-reveal]{opacity:0;transform:perspective(1000px) translate3d(0,34px,-60px) rotateX(7deg);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1);transition-delay:calc(var(--i,0)*80ms)}
html.js [data-reveal].in{opacity:1;transform:none}
html.js .card[data-reveal].in{transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .25s ease-out,border-color .25s,box-shadow .25s,opacity .8s}

/* Consent */
.consent{position:fixed;left:20px;right:20px;bottom:20px;z-index:150;max-width:560px;margin-inline:auto;padding:20px;border-radius:14px;background:rgba(11,6,22,.96);border:1px solid var(--line-strong);display:none;font-size:14.5px;color:var(--muted)}
.consent.is-visible{display:block}
.consent-actions{display:flex;gap:10px;margin-top:14px}
.consent button{font:inherit;font-size:14px;border-radius:999px;padding:9px 18px;cursor:pointer;border:1px solid var(--line-strong);background:none;color:#fff}
.consent .consent-accept{background:linear-gradient(135deg,var(--purple),var(--purple-dark));border:0}

/* ---------- Schmalere Fenster ---------- */
@media (max-width:1020px){
  .g4,.g5{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}
  .section-heading,.split,.imapu,.contact{grid-template-columns:1fr}
  .sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .station small{display:none}.station{width:120px}
}
@media (max-width:860px){
  .menu-button{display:block}
  .nav{flex-wrap:wrap;gap:12px}
  .nav-links{display:none;order:3;flex-basis:100%;flex-direction:column;gap:4px;margin:0;padding:8px 0 4px}
  .nav.is-open .nav-links{display:flex}
  .nav-links a{padding:11px 0;font-size:16px;border-top:1px solid var(--line)}
  .nav-cta{display:none}.nav.is-open .nav-cta{display:block;order:4;flex-basis:100%;text-align:center}
}
@media (max-width:640px){
  :root{--shell:calc(100% - 36px)}
  .g2,.g3,.g4,.g5{grid-template-columns:1fr}
  .hero{min-height:620px}
  .hero-copy{padding-top:96px}
  .hero-copy .lead{font-size:15.5px}
  .hero-copy .actions{margin-top:22px;gap:10px}
  .button{padding:12px 20px;font-size:14.5px}
  .station{width:84px}.station b{font-size:12.5px}.station span{font-size:9.5px}
  .scroll-hint span{display:none}
  .imapu-frame{padding:14px}
  .footer-grid{grid-template-columns:1fr}
  .contact-form{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js [data-reveal]{opacity:1;transform:none;transition:none}
  .card{transform:none!important}.imapu-frame{transform:none}
  .scroll-hint i{animation:none}
}