:root{
  --papier:#f3eee4;
  --brief:#fbf8f0;
  --brief2:#eee7d8;
  --tinte:#2b2420;
  --tinte2:#6d6055;
  --ox:#6d1f1a;
  --ox-d:#551713;
  --ln:rgba(43,36,32,.16);
  --ln2:rgba(43,36,32,.4);
  --disp:'Petrona',Georgia,serif;
  --sans:'Gantari','Segoe UI',Arial,sans-serif;
  --pad:clamp(1.2rem,4.5vw,3.4rem);
  --luft:clamp(4.5rem,10vw,8.5rem);
  --railw:216px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--papier);
  color:var(--tinte);
  font-family:var(--sans);
  font-size:1.02rem;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:300;opacity:.45;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='b'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .045 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23b)'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block}
a{color:var(--ox)}
::selection{background:var(--ox);color:var(--brief)}

/* Linke Registerleiste */
.regal{
  position:fixed;top:0;left:0;bottom:0;width:var(--railw);
  background:var(--brief2);
  border-right:1.5px solid var(--ln2);
  z-index:90;
  display:flex;flex-direction:column;
  padding:1.4rem 1.1rem;
}
.regal-name{
  font-family:var(--disp);font-weight:600;font-size:1.18rem;line-height:1.2;
  color:var(--tinte);text-decoration:none;letter-spacing:.01em;
}
.regal-name span{display:block;font-family:var(--sans);font-weight:600;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ox);margin-top:.35rem}
.regal nav{margin-top:2rem;display:flex;flex-direction:column;gap:.15rem}
.regal nav a{
  text-decoration:none;font-size:.9rem;font-weight:600;color:var(--tinte2);
  padding:.5rem .6rem;border-left:3px solid transparent;
}
.regal nav a:hover{color:var(--tinte);border-left-color:var(--ln2)}
.regal nav a.aktiv{color:var(--ox);border-left-color:var(--ox);background:rgba(109,31,26,.06)}
.regal-fuss{margin-top:auto;font-size:.78rem;color:var(--tinte2);line-height:1.5}
.regal-fuss a{display:block;font-weight:700;font-size:.92rem;margin-top:.3rem}

.seite{margin-left:var(--railw)}

.wrap{width:min(1080px,100% - 2*var(--pad));margin:0 auto}
.wrap .wrap{width:auto;margin:0}
.wrap.prose{max-width:none}
.wrap.prose>*{max-width:62ch}

.kick{
  font-size:.74rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ox);
}

/* Briefkopf-Hero mit Doppel-Diplom-Zeilen */
.brief{
  padding:clamp(3rem,7vw,5.5rem) 0 var(--luft);
  position:relative;
}
.bogen{
  background:var(--brief);
  border:1px solid var(--ln2);
  border-radius:.3rem;
  padding:clamp(1.8rem,4vw,3.2rem) clamp(1.4rem,3.5vw,3rem);
  position:relative;
}
.bogen::before{
  content:"";position:absolute;top:1.1rem;left:1.1rem;right:1.1rem;bottom:1.1rem;
  border:1px solid var(--ln);
  border-radius:.2rem;pointer-events:none;
}
.absender{display:flex;gap:.7rem;align-items:center;flex-wrap:wrap}
.absender .linie-k{width:2.2rem;border-top:2px solid var(--ox)}
.diplomzeile{
  font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--tinte2);
}
.diplomzeile em{font-style:normal;color:var(--ox)}
h1{
  font-family:var(--disp);font-weight:600;
  font-size:clamp(2rem,4.8vw,3.5rem);
  line-height:1.1;letter-spacing:-.01em;
  margin:.8rem 0 0;
}
h1 .ox{color:var(--ox)}
.brief-text{margin-top:1.1rem;color:var(--tinte2);max-width:54ch}
.aktion{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:.95rem;padding:.85rem 1.4rem;border-radius:.25rem}
.btn-ox{background:var(--ox);color:var(--brief)}
.btn-ox:hover{background:var(--ox-d)}
.btn-linie{color:var(--tinte);border:1.5px solid var(--ln2)}
.btn-linie:hover{border-color:var(--ox);color:var(--ox)}

/* Postkarte: Bild-Insert, leicht gedreht, weißer Rahmen */
.postkarte{
  position:absolute;right:clamp(-1rem,-0.5vw,0rem);bottom:clamp(-2.2rem,-2vw,-1.2rem);
  width:min(38%,340px);transform:rotate(2.2deg);
  background:#fff;padding:.55rem .55rem 1.6rem;
  box-shadow:0 18px 38px -16px rgba(43,36,32,.45);
  border:1px solid var(--ln);
}
.postkarte img{width:100%}
.postkarte p{font-size:.68rem;color:var(--tinte2);padding:.4rem .1rem 0;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.postkarte-halter{height:clamp(2.5rem,5vw,3.4rem)}

/* Genehmigungs-Register mit Punktleitern */
.register{
  background:var(--brief);
  border:1px solid var(--ln2);
  border-radius:.3rem;
  padding:1.2rem clamp(1.2rem,3vw,2.2rem);
}
.register .g{
  display:flex;align-items:baseline;gap:.8rem;
  padding:.68rem 0;
}
.register .g .was{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--tinte2);white-space:nowrap}
.register .g .leiter{flex:1;border-bottom:2px dotted var(--ln2);transform:translateY(-.28em)}
.register .g .wert{font-weight:600;text-align:right;max-width:60%}
.register .g .wert small{display:block;font-weight:400;color:var(--tinte2);font-size:.82rem}

.sec{padding:var(--luft) 0 0}
.sec-kopf{display:flex;align-items:baseline;gap:1rem;margin-bottom:1.3rem}
.sec-kopf .linie{flex:1;border-top:1.5px solid var(--ln2)}
h2{
  font-family:var(--disp);font-weight:600;letter-spacing:-.005em;
  font-size:clamp(1.5rem,3.1vw,2.2rem);line-height:1.14;
}
h3{font-weight:700;font-size:1.03rem}

/* Übungs-Karten (Entspannungsseite) */
.uebung{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.uebung article{
  background:var(--brief);border:1px solid var(--ln2);border-radius:.3rem;
  padding:1.4rem 1.3rem 1.5rem;
  border-top:4px solid var(--ox);
}
.uebung .nr{font-family:var(--disp);font-size:1.9rem;font-weight:600;color:var(--ox);line-height:1}
.uebung p{color:var(--tinte2);margin-top:.55rem;font-size:.95rem}

/* Prosatext */
.prose p{margin-bottom:1.1rem}
.prose p.leise{color:var(--tinte2)}
.fn{font-size:.88rem;color:var(--tinte2);margin-top:1.6rem}
sup{color:var(--ox);font-weight:700}

/* Offen-Modul */
.offen{
  border:1.5px dashed var(--ln2);
  background:var(--brief2);
  padding:1.25rem 1.4rem;
}
.offen .kick{color:var(--tinte2)}
.offen p{margin-top:.45rem;font-size:.96rem;color:var(--tinte2)}

/* Kontakt */
.kontakt-gross{
  font-family:var(--disp);font-weight:600;text-decoration:none;color:var(--tinte);
  font-size:clamp(1.7rem,4.2vw,2.8rem);line-height:1.1;display:inline-block;
}
.kontakt-gross:hover{color:var(--ox)}
.krise{border:2px solid var(--ox);padding:1.3rem 1.5rem;background:var(--brief)}
.krise h3{color:var(--ox)}
.krise p{font-size:.93rem;color:var(--tinte2);margin-top:.5rem}

/* Abschluss: Geposteter Umschlag */
.werkschluss{
  margin:var(--luft) 0 0;
  background:var(--ox-d);color:var(--brief);
  padding:clamp(2.6rem,6vw,4.5rem) var(--pad);
}
.werkschluss .kick{color:#dfb9b3}
.werkschluss .riesig{
  font-family:var(--disp);font-weight:600;letter-spacing:-.01em;
  font-size:clamp(1.9rem,5vw,3.3rem);line-height:1.12;display:inline-block;margin-top:.9rem;
  color:var(--brief);text-decoration:none;border-bottom:.1em dotted #dfb9b3;padding-bottom:.12em;
}
.werkschluss p{color:rgba(251,248,240,.72);margin-top:1rem;font-size:.95rem;max-width:56ch}
.werkschluss .riesig a{color:var(--brief)}
.werkschluss .riesig a:hover{color:#fff}

footer{
  background:var(--ox-d);color:rgba(251,248,240,.6);
  border-top:1px solid rgba(251,248,240,.16);
  padding:1.3rem var(--pad) 2.2rem;
}
footer .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.85rem}
footer a{color:rgba(251,248,240,.85);text-decoration:none;margin-left:1.1rem}
footer a:hover{color:var(--brief)}

/* Reveal */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

@media(max-width:940px){
  .regal{position:static;width:auto;flex-direction:row;align-items:center;gap:1rem;flex-wrap:wrap;border-right:none;border-bottom:1.5px solid var(--ln2)}
  .regal nav{margin:0;flex-direction:row;flex-wrap:wrap;gap:.2rem}
  .regal nav a{border-left:none;border-bottom:3px solid transparent;padding:.35rem .5rem}
  .regal nav a.aktiv{border-bottom-color:var(--ox)}
  .regal-fuss{display:none}
  .seite{margin-left:0}
  .postkarte{position:static;transform:rotate(1.4deg);width:min(100%,360px);margin:1.6rem auto 0}
  .postkarte-halter{display:none}
  .uebung{grid-template-columns:1fr}
}