/* Selbst gehostete Schriften (DSGVO: keine Google-Server) */
@font-face{font-family:"Spectral";src:url("fonts/Spectral-Regular.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Spectral";src:url("fonts/Spectral-Italic.woff2") format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Spectral";src:url("fonts/Spectral-SemiBold.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("fonts/IBMPlexMono-Regular.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("fonts/IBMPlexMono-Medium.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
:root{
  --tinte:#23282b;      /* Text */
  --schiefer:#5b6165;   /* Sekundärtext */
  --grau:#9aa0a3;       /* Tertiär/Labels */
  --slate:#2f4858;      /* Primärfläche (Header, dunkle Sektionen) */
  --slate-t:#3f4549;
  --papier:#fbfbf9;     /* Seite */
  --karte:#f6f5f1;      /* Kartenflächen */
  --beige:#e7e6e0;
  --linie:#d3d2ca;      /* Hairlines */
  --rost:#a35244;       /* Akzent */
  --max:1120px; --lesen:70ch;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;color:var(--tinte);background:var(--papier);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--rost)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:"Spectral",Georgia,serif;font-weight:600;line-height:1.18;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,3.8vw,2.8rem)}
h2{font-size:clamp(1.45rem,2.6vw,1.9rem);margin:1.6em 0 .5em}
h3{font-size:1.22rem;margin:1.5em 0 .4em}
p{margin-bottom:1em}
.mono{font-family:"IBM Plex Mono",monospace}
.label{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--schiefer)}
.label .rost{color:var(--rost)}
.lead{font-size:1.06rem;color:var(--schiefer);max-width:var(--lesen)}

/* ---------- Header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(251,251,249,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--linie)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--tinte)}
.brand .mark{width:34px;height:34px;flex-shrink:0}
.brand .wort{font-family:"IBM Plex Mono",monospace;font-size:.82rem;font-weight:500;letter-spacing:.18em;line-height:1.25}
.nav ul{display:flex;gap:1.6em;list-style:none}
.nav ul a{color:var(--tinte);text-decoration:none;font-size:.93rem;font-weight:500}
.nav ul a:hover{color:var(--rost)}
.btn{display:inline-block;padding:.7em 1.4em;border-radius:3px;text-decoration:none;font-weight:600;font-size:.93rem;font-family:"IBM Plex Mono",monospace;letter-spacing:.02em}
.btn-voll{background:var(--slate);color:#fff;border:1px solid var(--slate)}
.btn-voll:hover{background:#3c5a6e}
.btn-rand{border:1px solid var(--slate);color:var(--slate)}
.btn-rand:hover{background:var(--slate);color:#fff}
.btn-rost{background:var(--rost);color:#fff;border:1px solid var(--rost)}
.btn-rost:hover{background:#8c453a}
.nav .btn{padding:.5em 1em;font-size:.8rem}
.badge-zeile{background:var(--slate);color:#cfd6da}
.badge-zeile .wrap{display:flex;justify-content:center;padding:7px 24px}
.badge-zeile span{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase}

/* ---------- Seitenkopf ---------- */
.kopf{background:var(--slate);color:#fff;padding:52px 0 48px}
.kopf .krumen{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.08em;color:#9fb0ba;margin-bottom:1.4em}
.kopf .krumen a{color:#cfd6da;text-decoration:none}
.kopf .krumen a:hover{text-decoration:underline}
.kopf .kicker{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:#d8b8a9;margin-bottom:.9em}
.kopf p.intro{color:#c3ccd2;max-width:62ch;margin-top:.9em}
.kennzahlen{display:flex;gap:2.2em;flex-wrap:wrap;margin-top:1.6em}
.kennzahlen div{font-family:"IBM Plex Mono",monospace;font-size:.8rem;letter-spacing:.06em;color:#cfd6da}
.kennzahlen strong{display:block;font-size:1.5rem;color:#fff;font-weight:500}

/* ---------- Stufen-Navigation (Themenseite) ---------- */
.stufen{position:sticky;top:72px;z-index:40;background:var(--karte);border-bottom:1px solid var(--linie)}
.stufen .wrap{display:flex;gap:.5em;overflow-x:auto;padding:10px 24px}
.stufen a{flex-shrink:0;text-decoration:none;font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.06em;color:var(--tinte);border:1px solid var(--linie);background:var(--papier);border-radius:3px;padding:.45em 1em}
.stufen a:hover{border-color:var(--rost);color:var(--rost)}
.stufen .raute{color:var(--rost);margin-right:.5em}

/* ---------- Inhalt ---------- */
main{padding:56px 0 72px}
.inhalt{max-width:var(--lesen)}
.stufen-kopf{display:flex;align-items:center;gap:.9em;margin:2.6em 0 1em;padding-top:1.6em;border-top:1px solid var(--linie)}
.stufen-kopf:first-child{margin-top:0;padding-top:0;border-top:0}
.stufen-kopf .raute{font-family:"IBM Plex Mono",monospace;font-size:.9rem;color:var(--rost);letter-spacing:.15em}
.stufen-kopf .t{font-family:"IBM Plex Mono",monospace;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--tinte);font-weight:500}
ul.liste{margin:0 0 1em 1.2em;color:var(--schiefer)}
ul.liste li{margin-bottom:.5em}
.merk{border:1px solid var(--linie);border-left:3px solid var(--rost);background:var(--karte);padding:20px 26px;margin:2em 0}
.merk .t{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.16em;color:var(--rost);margin-bottom:.5em}
.merk p{margin:0;font-family:"Spectral",Georgia,serif;font-size:1.08rem;line-height:1.55}
.warn{border:1px solid var(--linie);background:var(--papier);border-radius:3px;padding:20px 24px;margin:1.8em 0;font-size:.95rem;color:var(--schiefer)}
.warn .t{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.16em;color:var(--tinte);margin-bottom:.5em}
.tabellen-rahmen{overflow-x:auto}
.tabelle{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.92rem;background:var(--papier);border:1px solid var(--linie)}
.tabelle th{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;text-align:left;color:var(--slate);border-bottom:2px solid var(--slate);padding:10px 12px}
.tabelle td{padding:10px 12px;border-bottom:1px solid var(--linie);vertical-align:top;color:var(--schiefer)}
.tabelle td:first-child{color:var(--tinte);font-weight:500}

/* ---------- Quiz ---------- */
.quiz{border:1px solid var(--linie);background:var(--karte);border-radius:3px;padding:28px 30px;margin:2.6em 0}
.quiz .qt{font-family:"IBM Plex Mono",monospace;font-size:.76rem;letter-spacing:.16em;color:var(--tinte);margin-bottom:.4em}
.quiz .qt .check{color:var(--rost)}
.quiz>p{color:var(--schiefer);font-size:.94rem}
.q{margin-top:1.5em}
.q .frage{font-weight:600;margin-bottom:.6em}
.q .frage .num{font-family:"IBM Plex Mono",monospace;color:var(--rost);margin-right:.5em;font-weight:500}
.q button{display:block;width:100%;text-align:left;background:var(--papier);border:1px solid var(--linie);border-radius:3px;padding:.6em .9em;margin-bottom:.45em;font:inherit;font-size:.94rem;cursor:pointer;color:var(--tinte)}
.q button:hover{border-color:var(--rost)}
.q button.richtig{border-color:#4a7a5a;background:#eef4ef}
.q button.falsch{border-color:var(--rost);background:#f7edeb}
.q .erkl{display:none;font-size:.92rem;color:var(--schiefer);border-left:2px solid var(--rost);padding:.5em 1em;margin-top:.6em}
.q.beantwortet .erkl{display:block}

/* ---------- Wegpunkt-Navigation ---------- */
.weiter{display:flex;justify-content:space-between;gap:1.5em;border-top:1px solid var(--linie);margin-top:3em;padding-top:1.8em;flex-wrap:wrap}
.weiter a{text-decoration:none;max-width:46%}
.weiter .label{display:block;margin-bottom:.3em;font-size:.7rem}
.weiter .titel{font-family:"Spectral",Georgia,serif;font-weight:600;font-size:1.05rem;color:var(--tinte)}
.weiter a:hover .titel{color:var(--rost)}
.weiter .uebersicht{width:100%;text-align:center;margin-top:.5em;font-family:"IBM Plex Mono",monospace;font-size:.78rem;color:var(--schiefer)}

/* ---------- Übersicht ---------- */
.etappe{padding:56px 0;border-bottom:1px solid var(--linie)}
.etappe.alt{background:var(--karte)}
.etappe-kopf{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.etappe-kopf .num{font-family:"IBM Plex Mono",monospace;font-size:1.9rem;color:var(--linie);font-weight:500}
.etappe-kopf h2{margin:0}
.etappe-kopf .count{font-family:"IBM Plex Mono",monospace;font-size:.76rem;color:var(--schiefer);letter-spacing:.08em}
.etappe .desc{color:var(--schiefer);margin-top:.4em;max-width:62ch}
.karten{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.karte-t{background:var(--papier);border:1px solid var(--linie);border-radius:3px;padding:18px 20px;text-decoration:none;display:block;position:relative}
.karte-t .code{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;color:var(--rost);margin-bottom:.4em;display:block}
.karte-t h3{margin:0 0 .3em;font-size:1.02rem;color:var(--tinte);font-family:"Spectral",Georgia,serif}
.karte-t p{color:var(--schiefer);font-size:.88rem;margin:0}
.karte-t:hover{border-color:var(--slate)}
.karte-t:hover h3{color:var(--rost)}

/* ---------- Kacheln / generisch ---------- */
.kacheln{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.kachel{background:var(--karte);border:1px solid var(--linie);border-radius:3px;padding:26px 26px}
.kachel .raute{font-family:"IBM Plex Mono",monospace;color:var(--rost);margin-bottom:.8em;font-size:.9rem}
.kachel h3{margin:0 0 .4em;font-size:1.08rem}
.kachel p{color:var(--schiefer);font-size:.94rem;margin:0}
section.block{padding:72px 0}
section.block.alt{background:var(--karte)}
section.block.dunkel{background:var(--slate);color:#fff}
section.block.dunkel .lead{color:#c3ccd2}
.finale{text-align:center}
.cta-reihe{display:flex;gap:.9em;flex-wrap:wrap}

/* ---------- Footer ---------- */
footer{background:#23282b;color:#9aa0a3;font-size:.9rem;padding:48px 0 36px}
footer a{color:#c9ccce;text-decoration:none}
footer a:hover{text-decoration:underline}
.disclaimer{font-size:.82rem;line-height:1.7;color:#8b9093}
.disclaimer p{margin-bottom:.9em}
.copy{margin-top:16px;font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:#6c7276}
a:focus-visible,button:focus-visible{outline:2px solid var(--rost);outline-offset:3px}
@media (max-width:900px){
  .nav ul{display:none}
  .karten,.kacheln{grid-template-columns:1fr}
  main{padding:44px 0 56px}
  .kopf{padding:40px 0 38px}
  .weiter a{max-width:100%}
}