@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400..700&family=Inter+Tight:wght@400..700&display=swap');

:root{
  --paper:#ECEAE4; --paper2:#E2DFD8;
  --ink:#ECEAE4;                 /* Seitenhintergrund */
  --panel:rgba(255,255,255,.82); /* Glas */
  --panel2:rgba(255,255,255,.95);
  --solid:#FFFFFF;
  --line:rgba(21,23,28,.12);
  --white:#15171C;               /* staerkste Textfarbe */
  --text:#2C3038;
  --muted:#666C77;
  --accent:#6D4AFF;
  --accent-ink:#FFFFFF;
  --accent-soft:rgba(109,74,255,.11);
  --link:#2C5FE8;
  --wash1:rgba(109,74,255,.22); --wash2:rgba(44,95,232,.15); --wash3:rgba(120,200,190,.16);
  --vignette:rgba(21,23,28,.16);
  --shadow:0 1px 2px rgba(21,23,28,.06), 0 14px 36px rgba(21,23,28,.09);
  --shadow-lift:0 2px 6px rgba(21,23,28,.08), 0 26px 60px rgba(21,23,28,.14);
  --serif:"Fraunces",Georgia,serif;
  --sans:"Inter Tight",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --pad:clamp(20px,5vw,56px);
  --r:16px; --logo-filter:none;
  /* Aliase fuer Login- und Kursseite */
  --violet:var(--accent); --violet-soft:var(--accent-soft); --flare:var(--accent);
  --glass:var(--panel); --glass-strong:var(--panel2); --dark-panel:var(--solid);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --paper:#17191E; --paper2:#1E2127;
  --ink:#17191E;
  --panel:rgba(255,255,255,.085); --panel2:rgba(255,255,255,.13); --solid:#22252C;
  --line:rgba(255,255,255,.12);
  --white:#F4F5F7; --text:#C9CDD5; --muted:#8F95A0;
  --accent:#9B82FF; --accent-ink:#161422; --accent-soft:rgba(155,130,255,.17);
  --link:#7BA0FF;
  --wash1:rgba(155,130,255,.22); --wash2:rgba(80,120,255,.18); --wash3:rgba(90,190,180,.14);
  --vignette:rgba(0,0,0,.38);
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 14px 40px rgba(0,0,0,.42);
  --shadow-lift:0 2px 8px rgba(0,0,0,.4), 0 26px 64px rgba(0,0,0,.5); --logo-filter:invert(1);
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --paper:#17191E; --paper2:#1E2127;
  --ink:#17191E;
  --panel:rgba(255,255,255,.085); --panel2:rgba(255,255,255,.13); --solid:#22252C;
  --line:rgba(255,255,255,.12);
  --white:#F4F5F7; --text:#C9CDD5; --muted:#8F95A0;
  --accent:#9B82FF; --accent-ink:#161422; --accent-soft:rgba(155,130,255,.17);
  --link:#7BA0FF;
  --wash1:rgba(155,130,255,.22); --wash2:rgba(80,120,255,.18); --wash3:rgba(90,190,180,.14);
  --vignette:rgba(0,0,0,.38);
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 14px 40px rgba(0,0,0,.42);
  --shadow-lift:0 2px 8px rgba(0,0,0,.4), 0 26px 64px rgba(0,0,0,.5); --logo-filter:invert(1);
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);
  font:450 18px/1.58 var(--sans);-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(52vw 46vw at 82% -6%,var(--wash1),transparent 62%),
                   radial-gradient(46vw 44vw at -8% 12%,var(--wash2),transparent 60%),
                   radial-gradient(40vw 40vw at 60% 108%,var(--wash3),transparent 62%);
  background-attachment:fixed}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(115% 85% at 50% 42%,transparent 52%,var(--vignette) 100%)}
body>*{position:relative;z-index:1}
img{max-width:100%;display:block}
[hidden]{display:none!important}
a{color:inherit}
b,strong{font-weight:600}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--link);outline-offset:3px;border-radius:4px}

.wrap{width:min(1180px,100% - var(--pad)*2);margin-inline:auto}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;color:var(--white);margin:0;
  font-variation-settings:"opsz" 120,"SOFT" 0,"WONK" 1;letter-spacing:-.02em;line-height:1.02}
h1{font-size:clamp(44px,6.6vw,84px)}
h2{font-size:clamp(34px,4.4vw,54px);line-height:1.05}
h3{font-size:clamp(22px,2.2vw,27px);line-height:1.2;letter-spacing:-.01em}
p{margin:0}
.lead{font-size:clamp(18px,1.45vw,21px);color:var(--text);max-width:56ch}
.small{font-size:15.5px;color:var(--muted)}
section{padding-block:clamp(60px,8.5vw,120px)}

.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  -webkit-backdrop-filter:blur(18px) saturate(170%);backdrop-filter:blur(18px) saturate(170%);
  box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;gap:9px;padding:15px 26px;border-radius:999px;
  font:600 16px var(--sans);text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s,background .18s,border-color .18s}
.btn-p{background:var(--accent);color:var(--accent-ink);box-shadow:0 6px 18px rgba(109,74,255,.26)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(109,74,255,.32)}
.btn-g{border-color:var(--line);color:var(--white);background:var(--panel2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.btn-g:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.rec{width:9px;height:9px;border-radius:50%;background:var(--accent);flex:none}

.themebtn{all:unset;cursor:pointer;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  color:var(--white);border:1px solid var(--line);background:var(--panel2)}
.themebtn:hover{box-shadow:var(--shadow)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}