@font-face{font-family:"Source Serif 4";src:url("serif-600.woff2") format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Albert Sans";src:url("albert-400.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Albert Sans";src:url("albert-600.woff2") format("woff2");font-weight:600;font-display:swap}
:root{--papier:#f6f1e6;--weiss:#fffdf8;--tinte:#1b2a24;--gruen:#1f5a47;--gruen-d:#163f33;--gruen-h:#e3eee7;--kupfer:#b1602a;--kupfer-h:#f6e5d6;--grau:#5e6660;--linie:#dcd3c0;--serif:"Source Serif 4",Georgia,"Times New Roman",serif;--sans:"Albert Sans",system-ui,-apple-system,"Segoe UI",sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--papier);color:var(--tinte);font:400 1.05rem/1.68 var(--sans);font-variant-numeric:tabular-nums}
img,svg{display:block;max-width:100%}
a{color:var(--gruen);text-underline-offset:.18em}
a:hover{color:var(--kupfer)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;letter-spacing:-.015em;margin:0 0 .5em;overflow-wrap:break-word;hyphens:auto;-webkit-hyphens:auto}
h1{font-size:clamp(2.3rem,1.4rem + 3.8vw,4.4rem)}
h2{font-size:clamp(1.75rem,1.25rem + 2vw,2.7rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
button,input,select,textarea{font:inherit;color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--kupfer);outline-offset:3px}
.box{width:min(100% - 32px,1160px);margin-inline:auto}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;top:-200px;left:16px;z-index:400;background:var(--tinte);color:#fff;padding:.6rem 1rem}
.skip:focus{top:16px;color:#fff}
.ic{width:20px;height:20px;flex:none}
.zahl{font-family:var(--serif);font-weight:600}

/* kopf */
.kopf{position:sticky;top:0;z-index:100;background:rgba(246,241,230,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--linie)}
.kopf-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:72px}
.marke{display:flex;align-items:center;gap:.6rem;font-family:var(--serif);font-weight:600;font-size:1.45rem;color:var(--tinte);text-decoration:none;letter-spacing:-.02em}
.marke svg{width:34px;height:34px}
.menue ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:.2rem}
.menue a{display:block;padding:.5rem .8rem;color:var(--tinte);text-decoration:none;font-weight:600;font-size:.95rem}
.menue a:hover,.menue a[aria-current="page"]{color:var(--gruen);box-shadow:inset 0 -2px 0 var(--kupfer)}
.menue .cta{background:var(--gruen);color:#fff;margin-left:.6rem;padding:.6rem 1.1rem;box-shadow:none}
.menue .cta:hover,.menue .cta[aria-current="page"]{background:var(--gruen-d);color:#fff;box-shadow:none}
.menue-btn{display:none;align-items:center;gap:.4rem;border:1px solid var(--tinte);background:transparent;padding:.5rem .8rem;font-weight:600;cursor:pointer}
@media (max-width:920px){
  .menue-btn{display:flex}
  .menue{display:none;position:absolute;left:0;right:0;top:100%;background:var(--weiss);border-bottom:1px solid var(--linie);padding:.6rem 16px 1.2rem}
  .menue.ist-offen{display:block}
  .menue ul{flex-direction:column;align-items:stretch}
  .menue a{padding:.8rem .2rem;border-bottom:1px solid var(--linie)}
  .menue .cta{margin:1rem 0 0;text-align:center}
}

/* knöpfe */
.knopf{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--gruen);color:#fff;border:2px solid var(--gruen);padding:.8rem 1.35rem;font-weight:600;text-decoration:none;cursor:pointer;transition:background .15s}
.knopf:hover{background:var(--gruen-d);border-color:var(--gruen-d);color:#fff}
.knopf.zweit{background:transparent;color:var(--tinte);border-color:var(--tinte)}
.knopf.zweit:hover{background:var(--tinte);color:#fff}
.knopf:disabled{opacity:.6;cursor:wait}

/* auftakt */
.auftakt{padding:clamp(3rem,7vw,5.5rem) 0 clamp(3rem,6vw,5rem);border-bottom:1px solid var(--linie)}
.auftakt-g{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.auftakt-g>*{min-width:0}
.dach{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--kupfer);margin-bottom:1rem}
.auftakt h1 em{font-style:normal;color:var(--gruen);background:linear-gradient(transparent 68%,var(--kupfer-h) 68%)}
.auftakt .lead{font-size:1.18rem;color:var(--grau);max-width:36rem}
.knopfzeile{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.beleg{background:var(--weiss);border:1px solid var(--linie);box-shadow:0 24px 50px -30px rgba(27,42,36,.45);padding:1.4rem 1.5rem 1.2rem;position:relative}
.beleg::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:10px;background:radial-gradient(circle at 8px 0,transparent 7px,var(--weiss) 7.5px) 0 0/16px 10px repeat-x}
.beleg h2{font-size:1.15rem;display:flex;justify-content:space-between;gap:1rem;border-bottom:2px solid var(--tinte);padding-bottom:.6rem;margin-bottom:.4rem}
.beleg h2 small{font-family:var(--sans);font-size:.78rem;color:var(--grau);font-weight:400;align-self:end}
.beleg table{width:100%;border-collapse:collapse;font-size:.92rem}
.beleg td{padding:.55rem 0;border-bottom:1px dashed var(--linie);vertical-align:top}
.beleg td:last-child{text-align:right;white-space:nowrap;padding-left:.8rem}
.marker{display:inline-block;font-size:.7rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:.1rem .45rem;margin-left:.35rem;vertical-align:1px}
.marker.ok{background:var(--gruen-h);color:var(--gruen-d)}
.marker.pruefen{background:var(--kupfer-h);color:#80431b}
.beleg p{font-size:.82rem;color:var(--grau);margin:.8rem 0 0}

/* abschnitte */
.abschnitt{padding:clamp(3.5rem,8vw,6rem) 0}
.abschnitt.hell{background:var(--weiss);border-block:1px solid var(--linie)}
.abschnitt.dunkel{background:var(--gruen-d);color:#e8efe9}
.abschnitt.dunkel h2,.abschnitt.dunkel h3{color:#fff}
.abschnitt.dunkel a{color:#fff}
.titelzeile{display:grid;grid-template-columns:1fr 1fr;gap:1rem 3rem;align-items:end;margin-bottom:2.4rem}
.titelzeile h2{margin:0}
.titelzeile p{margin:0;color:var(--grau)}
.abschnitt.dunkel .titelzeile p{color:#bcd0c5}
@media (max-width:780px){.titelzeile{grid-template-columns:1fr}}

/* register (lösungen) */
.register{list-style:none;margin:0;padding:0;border-top:2px solid var(--tinte);counter-reset:pos}
.posten{display:grid;grid-template-columns:4.5rem 1fr 1.3fr auto;gap:1rem 1.6rem;align-items:baseline;padding:1.4rem 0;border-bottom:1px solid var(--linie);counter-increment:pos}
.posten::before{content:counter(pos,decimal-leading-zero);font-family:var(--serif);font-size:1.6rem;color:var(--kupfer);font-weight:600}
.posten h3{margin:0;font-size:1.3rem}
.posten h3 a{color:var(--tinte);text-decoration:none}
.posten h3 a:hover{color:var(--gruen);text-decoration:underline}
.posten h3 small{display:block;font-family:var(--sans);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--grau);font-weight:600;margin-top:.3rem}
.posten p{margin:0;color:var(--grau)}
.posten .mehr{font-weight:600;white-space:nowrap;display:flex;align-items:center;gap:.3rem}
.posten>*{min-width:0}
@media (max-width:860px){.posten{grid-template-columns:3rem 1fr}.posten p,.posten .mehr{grid-column:2}}

/* rechner */
.rechner{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--weiss);border:1px solid var(--linie);color:var(--tinte)}
.rechner>*{min-width:0;padding:clamp(1.3rem,3.5vw,2.4rem)}
.rechner h3{font-size:1.3rem}
.eingabe .feld input{background:var(--papier)}
.einheit{position:relative}
.einheit input{padding-right:3.6rem!important}
.einheit span{position:absolute;right:1rem;top:50%;transform:translateY(-50%);font-size:.85rem;color:var(--grau);pointer-events:none}
.ergebnis{background:var(--papier);border-left:1px solid var(--linie)}
.kennzahl{border-bottom:1px solid var(--linie);padding:.9rem 0}
.kennzahl:first-of-type{padding-top:0}
.kennzahl dt{font-size:.85rem;color:var(--grau);font-weight:600}
.kennzahl dd{margin:.15rem 0 0;font-family:var(--serif);font-weight:600;font-size:clamp(1.6rem,1.2rem + 1.6vw,2.3rem);line-height:1.2;overflow-wrap:anywhere}
.kennzahl.haupt dd{color:var(--gruen);font-size:clamp(2rem,1.4rem + 2.4vw,3rem)}
.kennzahl dd small{font-family:var(--sans);font-size:.85rem;font-weight:400;color:var(--grau);display:block}
.rechner-fehler{color:#a3281b;font-weight:600;font-size:.9rem;min-height:1.3em;margin:.4rem 0 0}
.rechner .klein{margin-top:1rem}
@media (max-width:820px){.rechner{grid-template-columns:1fr}.ergebnis{border-left:0;border-top:1px solid var(--linie)}}

/* ablauf */
.ablauf{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--tinte)}
.ablauf li{padding:1.4rem 1.4rem 0 0;counter-increment:s;min-width:0}
.ablauf{counter-reset:s}
.ablauf li::before{content:"Schritt " counter(s);display:block;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600;color:var(--kupfer);margin-bottom:.5rem}
.ablauf p{color:var(--grau);margin:0}
@media (max-width:860px){.ablauf{grid-template-columns:1fr 1fr;gap:0 1.4rem}.ablauf li{padding-bottom:1.2rem}}
@media (max-width:500px){.ablauf{grid-template-columns:1fr}}

/* aufteilung */
.aufteilung{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.aufteilung>div{border:1px solid rgba(255,255,255,.22);padding:1.6rem;min-width:0}
.aufteilung>div:first-child{background:rgba(255,255,255,.06)}
.aufteilung ul{margin:0;padding-left:1.2rem}
.aufteilung li{margin-bottom:.45rem}
@media (max-width:720px){.aufteilung{grid-template-columns:1fr}}

/* hinweis */
.hinweis{border-left:4px solid var(--kupfer);background:var(--kupfer-h);padding:1.1rem 1.3rem;margin:1.6rem 0}
.hinweis p:last-child{margin:0}
.hinweis strong{display:block;margin-bottom:.2rem}

/* lektüre */
.lektuere{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.lektuere a{display:block;background:var(--weiss);border:1px solid var(--linie);border-top:4px solid var(--gruen);padding:1.6rem;color:var(--tinte);text-decoration:none;min-width:0}
.lektuere a:hover{border-top-color:var(--kupfer)}
.lektuere small{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--kupfer);font-weight:600}
.lektuere h3,.lektuere h2{margin:.5rem 0}
.lektuere p{color:var(--grau);margin:0}
@media (max-width:720px){.lektuere{grid-template-columns:1fr}}

/* fragen */
.fragen{max-width:860px;border-top:2px solid var(--tinte)}
.fragen details{border-bottom:1px solid var(--linie)}
.fragen summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:1rem;padding:1.15rem 0;font-weight:600;font-size:1.05rem}
.fragen summary::-webkit-details-marker{display:none}
.fragen summary::after{content:"+";font-family:var(--serif);font-size:1.5rem;line-height:1;color:var(--kupfer);flex:none}
.fragen details[open] summary::after{content:"–"}
.fragen details p{margin:0 0 1.2rem;color:var(--grau);max-width:46rem}

/* kontakt */
.kontakt{padding:clamp(3.5rem,8vw,6rem) 0;background:var(--gruen-d);color:#e8efe9}
.kontakt-in{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.kontakt-in>*{min-width:0}
.kontakt h2{color:#fff}
.kontakt-in>div>p{color:#bcd0c5}
.kanaele{list-style:none;margin:1.6rem 0 0;padding:0;border-top:1px solid rgba(255,255,255,.2)}
.kanaele a{display:flex;gap:.9rem;align-items:center;padding:.9rem 0;border-bottom:1px solid rgba(255,255,255,.2);color:#fff;text-decoration:none}
.kanaele a:hover{color:#f3c9a7}
.kanaele small{display:block;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:#9fbcae}
@media (max-width:860px){.kontakt-in{grid-template-columns:1fr}}
.formular{background:var(--weiss);color:var(--tinte);padding:clamp(1.3rem,3.5vw,2.4rem)}
.formular h3{font-size:1.5rem}
.formular>p{color:var(--grau)}
.feld{margin-bottom:1rem}
.feld label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.3rem}
.feld label span{font-weight:400;color:var(--grau)}
.feld input,.feld select,.feld textarea{width:100%;padding:.75rem .9rem;border:1px solid #bfb6a2;background:#fff;border-radius:0}
.feld input:focus,.feld select:focus,.feld textarea:focus{outline:3px solid var(--gruen-h);border-color:var(--gruen)}
.feld textarea{min-height:120px;resize:vertical}
.feld small{display:block;font-size:.8rem;color:var(--grau);margin-top:.3rem}
.feld [aria-invalid="true"]{border-color:#a3281b;background:#fff4f1}
.doppel{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
@media (max-width:540px){.doppel{grid-template-columns:1fr}}
.zust{display:flex;gap:.6rem;align-items:flex-start;font-size:.88rem;margin:.3rem 0 1rem}
.zust input{width:20px;height:20px;flex:none;margin-top:.15rem;accent-color:var(--gruen)}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.f-status{min-height:1.4em;margin:.8rem 0 0;font-weight:600;font-size:.9rem;color:#a3281b}
.f-status.ok{color:var(--gruen)}
.klein{font-size:.78rem;color:var(--grau);line-height:1.5;margin:1rem 0 0}

/* innenseiten */
.seitenkopf{padding:clamp(2.6rem,6vw,4rem) 0 clamp(2rem,4vw,2.8rem);border-bottom:1px solid var(--linie)}
.seitenkopf h1{font-size:clamp(2.1rem,1.3rem + 3.2vw,3.8rem);max-width:20ch}
.seitenkopf p{font-size:1.15rem;color:var(--grau);max-width:42rem;margin:0}
.pfad{font-size:.88rem;color:var(--grau);margin-bottom:1rem}
.pfad a{color:var(--tinte)}
.papier{background:var(--weiss);border:1px solid var(--linie);padding:clamp(1.3rem,4vw,3rem)}
.text{max-width:46rem}
.text h2{font-size:clamp(1.45rem,1.15rem + 1vw,1.95rem);margin-top:2.3rem}
.text h2:first-child{margin-top:0}
.text h3{margin-top:1.6rem}
.text ul,.text ol{padding-left:1.25rem}
.text li{margin-bottom:.45rem}
.spalten{display:grid;grid-template-columns:1.4fr .6fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.spalten>*{min-width:0}
.randspalte{position:sticky;top:96px;border-top:4px solid var(--kupfer);background:var(--weiss);border-inline:1px solid var(--linie);border-bottom:1px solid var(--linie);padding:1.4rem}
.randspalte h2{font-size:1.2rem;margin-top:0}
.randspalte ul{padding-left:1.1rem;color:var(--grau)}
@media (max-width:900px){.spalten{grid-template-columns:1fr}.randspalte{position:static}}
.info{background:var(--gruen-h);border-left:4px solid var(--gruen);padding:1rem 1.2rem;margin:1.6rem 0}
.info p:last-child{margin:0}
.muster{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1rem 0}
.muster>div{border:1px solid var(--linie);padding:1.1rem;background:var(--papier);min-width:0}
.muster>div+div{background:var(--tinte);color:#eef3ef;border-color:var(--tinte)}
.muster h3{font-family:var(--sans);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--grau);margin:0 0 .5rem}
.muster>div+div h3{color:#f3c9a7}
.muster pre{margin:0;white-space:pre-wrap;font:inherit;font-size:.93rem}
@media (max-width:640px){.muster{grid-template-columns:1fr}}
.cookie-tabelle,.tabelle{overflow-x:auto;border:1px solid var(--linie);margin:1rem 0 1.4rem}
.cookie-tabelle table,.tabelle table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:560px}
.cookie-tabelle th,.cookie-tabelle td,.tabelle th,.tabelle td{text-align:left;vertical-align:top;padding:.65rem .85rem;border-bottom:1px solid var(--linie)}
.cookie-tabelle thead th,.tabelle thead th{background:var(--papier)}
.tabelle td.r,.tabelle th.r{text-align:right}
.zentriert{text-align:center;max-width:40rem;margin-inline:auto}
.zentriert .knopfzeile{justify-content:center}
.riesig{font-family:var(--serif);font-weight:600;font-size:clamp(3.2rem,13vw,7rem);line-height:1;color:var(--gruen);margin:0 0 .5rem}

/* fuss */
.fuss{background:var(--tinte);color:#a9b4ad;padding:3.2rem 0 1.5rem;font-size:.93rem}
.fuss a{color:#fff}
.fuss .marke{color:#fff}
.fuss-g{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.fuss-g>*{min-width:0}
.fuss h2{font-family:var(--sans);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:#e6a77a;margin-bottom:.9rem}
.fuss ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.fuss .lk{background:none;border:0;padding:0;color:#fff;text-decoration:underline;cursor:pointer}
.fuss-b{margin-top:2.2rem;padding-top:1.1rem;border-top:1px solid #34443d;font-size:.8rem;color:#8d9891}
@media (max-width:900px){.fuss-g{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.fuss-g{grid-template-columns:1fr}}

/* cookies */
.cb{position:fixed;left:16px;bottom:16px;z-index:200;width:min(560px,calc(100% - 32px));background:var(--weiss);border:1px solid var(--linie);border-top:4px solid var(--gruen);box-shadow:0 30px 60px -24px rgba(27,42,36,.55);padding:1.3rem 1.4rem}
.cb h2{font-size:1.25rem;margin:0 2.4rem .4rem 0}
.cb p{font-size:.88rem;color:var(--grau);margin:0}
.cb-x{position:absolute;top:.7rem;right:.7rem;width:36px;height:36px;border:1px solid var(--linie);background:transparent;cursor:pointer;font-size:1.2rem;line-height:1}
.cb-knoepfe{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin-top:1rem}
.cb-knoepfe button{border:2px solid var(--tinte);background:var(--weiss);color:var(--tinte);padding:.6rem .4rem;font-weight:600;font-size:.9rem;cursor:pointer}
.cb-knoepfe button:hover{background:var(--tinte);color:#fff}
@media (max-width:440px){.cb-knoepfe{grid-template-columns:1fr}}
.cb-dialog{border:0;padding:0;width:calc(100% - 32px);max-width:540px;background:var(--weiss)}
.cb-dialog::backdrop{background:rgba(27,42,36,.6)}
.cb-dialog-in{padding:1.6rem}
.cb-dialog h2{font-size:1.45rem}
.cb-sub{font-size:.9rem;color:var(--grau)}
.cb-zeile{display:flex;justify-content:space-between;gap:1rem;padding:.9rem 0;border-top:1px solid var(--linie)}
.cb-zeile h3{font-family:var(--sans);font-size:1rem;margin:0 0 .2rem}
.cb-zeile p{font-size:.86rem;color:var(--grau);margin:0}
.cb-zeile input{width:22px;height:22px;flex:none;accent-color:var(--gruen)}
.cb-zu{float:right;border:1px solid var(--linie);background:transparent;width:36px;height:36px;cursor:pointer;font-size:1.2rem}
.cb-info{position:fixed;left:16px;bottom:16px;z-index:210;background:var(--tinte);color:#fff;padding:.75rem 1.1rem;font-size:.88rem;max-width:calc(100% - 32px)}
@media print{.kopf,.cb,.fuss,.kontakt{display:none}}
.abschnitt.dunkel .rechner h3{color:var(--tinte)}
.beleg h2{flex-wrap:wrap;row-gap:.2rem}.beleg h2 small{align-self:auto}
@media (max-width:420px){.beleg{padding:1.1rem 1rem 1rem}.beleg .marker{display:table;margin:.25rem 0 0}}
@media (max-width:900px){.auftakt-g{grid-template-columns:1fr}}