/* kapitel/afb.css — gemeinsames Layout der AFB-Aufgabenbloecke.
   Extrahiert 2026-09-08 aus den drei Leitvorlagen uebung-afb1/2/3 in
   mathematik/klasse-8/vielecke-prismen. Nur Regeln, die in allen dreien
   identisch waren, und nur Selektoren, deren saemtliche Regeln mitgehen. */
.erklaer-text{font-size:16px;line-height:1.75;color:var(--ink);margin-bottom:18px}
.erklaer-text strong{color:var(--mathe-ink);font-weight:600}
.selfexplain[open] summary{margin-bottom:10px}
:root{--bg:#f4ede0;--bg-soft:#faf6ee;--bg-dark:#3d342b;--ink:#1a1612;--ink-soft:#5b4f43;--rule:#c9bb9a;--mathe:#d6e4f5;--mathe-deep:#a8c5e3;--mathe-strong:#3a5a8c;--mathe-ink:#15294a;--info-orange:#b86a2c;--safe:#4a7530;--danger:#b32d2d}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:Inter,sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Fredoka',sans-serif;font-weight:500;letter-spacing:-0.01em;line-height:1.1}
em{font-style:normal}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 32px}
*:focus-visible{outline:3px solid var(--mathe-strong);outline-offset:2px;border-radius:4px}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--mathe-strong);outline-offset:2px}
.skip-link{position:absolute;top:-40px;left:8px;background:var(--mathe-ink);color:#fff;padding:8px 16px;border-radius:6px;z-index:100;font-size:14px}
.skip-link:focus{top:8px}
header{position:sticky;top:0;z-index:50;background:rgba(244,237,224,0.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
header .bar{display:flex;align-items:center;justify-content:space-between;padding:22px 0}
.brand-img{height: 28px; width: auto; display: block; object-fit: contain;}
@media (max-width: 560px){
.brand-img{height: 24px;}
}
.brand{}
nav ul{display:flex;gap:36px;list-style:none;font-size:15px;align-items:center}
nav a{color:var(--ink-soft);transition:color .2s}
nav a:hover{color:var(--ink)}
nav a.active{color:var(--mathe-strong);font-weight:500}
nav .nav-sep{width:1px;height:18px;background:var(--rule);align-self:center;margin:0 4px}
.breadcrumb a{color:rgba(255,255,255,0.85);text-decoration:none}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{margin:0 8px;opacity:0.6}
.panel{padding:40px 0 80px}
.lernziele ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}
.lernziele li{display:flex;align-items:flex-start;gap:10px;font-size:15px;line-height:1.5}
.lernziele li::before{content:'✓';color:var(--safe);font-weight:700;flex-shrink:0;font-size:16px;margin-top:1px}
.aufgabe{background:#fff;border:1px solid var(--rule);border-radius:14px;padding:24px 28px;margin-bottom:14px;transition:border-color .2s,box-shadow .2s}
.aufgabe:hover{border-color:var(--mathe-deep);box-shadow:0 6px 18px rgba(0,0,0,0.05)}
.aufgabe.solved{border-color:var(--safe);background:linear-gradient(180deg,#fff 60%,#f4faec 100%)}
.aufgabe-head{display:flex;align-items:center;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.aufgabe.solved .aufgabe-num{background:var(--safe);border-color:var(--safe);color:#fff}
.aufgabe-title{font-family:'Fredoka',sans-serif;font-style:normal;font-size:20px;color:var(--mathe-ink);flex:1;min-width:0}
.afb{display:inline-block;font-size:11px;font-weight:700;letter-spacing:0.05em;padding:3px 10px;border-radius:999px;border:1.5px solid;font-family:Inter;flex-shrink:0}
.afb-1{color:#2e5e1f;border-color:var(--safe);background:#f4faec}
.aufgabe-body.no-img{grid-template-columns:1fr}
.aufgabe-text p{font-size:15px;line-height:1.65;margin-bottom:8px}
.aufgabe-text p:last-of-type{margin-bottom:14px}
.aufgabe-fig svg{width:100%;height:auto;background:var(--bg-soft);border:1px solid var(--rule);border-radius:10px;padding:12px}
.aufgabe-fig .fig-cap{font-size:12px;color:var(--ink-soft);text-align:center;margin-top:6px;font-style:normal}
@media(max-width:700px){
.aufgabe-fig{width:100%;max-width:340px;margin:0 auto}
}
.input-row label{font-size:14px;color:var(--ink);font-weight:500;display:flex;align-items:center;gap:6px}
.input-row input.ok{border-color:var(--safe);background:#f4faec}
.input-row input.wrong{border-color:var(--danger);background:#fce5e5}
.input-row .unit{font-size:13px;color:var(--ink-soft)}
.check-btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}
.input-fb{display:none;margin-top:10px;padding:12px 16px;border-radius:8px;font-size:14px;line-height:1.55}
.input-fb.show{display:block}
.input-fb.ok{background:#d8e8c4;color:#2e5e1f;border-left:3px solid var(--safe)}
.input-fb.warn{background:#fce8d8;color:#5a3210;border-left:3px solid var(--info-orange)}
.input-fb.error{background:#fde5e5;color:#6b1414;border-left:3px solid var(--danger)}
.hilfen{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.hilfe-btn{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#6b3a14;background:#fff;border:1.5px dashed #e8a87c;padding:7px 14px;border-radius:999px;cursor:pointer;font-family:Inter;transition:all .2s;font-weight:600;min-height:34px}
.hilfe-btn:hover:not(:disabled){background:#fdf5eb;border-style:solid}
.hilfe-btn:disabled{opacity:0.45;cursor:not-allowed}
.hilfe-content{display:none;padding:14px 18px;background:#fff8ec;border-left:3px solid var(--info-orange);border-radius:6px;font-size:14px;color:var(--ink);line-height:1.65;animation:fadeIn .3s}
.hilfe-content.show{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.hilfe-content strong{color:#6b3a14}
.selfexplain summary::before{content:'';font-size:14px}
.selfexplain[open] summary{margin-bottom:10px}
.progress-sticky{position:sticky;top:78px;background:#fff;border:1px solid var(--rule);border-radius:12px;padding:12px 18px;margin-bottom:24px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--ink);z-index:5;box-shadow:0 2px 10px rgba(0,0,0,0.05)}
.progress-bar-wrap{flex:1;height:8px;background:var(--bg-soft);border-radius:999px;overflow:hidden}
footer{background:var(--bg-dark);color:#d6c8a8;padding:60px 0 40px;font-size:14px}
footer .row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
footer .links{display:flex;gap:28px}
footer a:hover{color:#fff}
@media print{
body{background:#fff;color:#000;font-size:11pt}
.panel{padding:0}
.aufgabe{page-break-inside:avoid;border:1px solid #ccc}
a{color:#000;text-decoration:underline}
}
@media(max-width:560px){
nav{display:none}
.container{padding:0 22px}
}
.topic-hero h1 em{font-style:normal}
.topic-hero .subtitle, .topic-hero .untertitel{font-size:17px;line-height:1.7;color:rgba(255,255,255,0.92);max-width:62ch}
.panel{padding:64px 0 100px}
.lernziele::before{content:'Lernziele'; font-family:Inter,sans-serif;font-size:11px;font-weight:600; letter-spacing:0.22em;text-transform:uppercase; color:var(--ink-soft); padding-top:6px;}
.lernziele ul{margin:0}
.lernziele li{font-size:17px;line-height:1.5;color:var(--ink)}
.lernziele li::before{content:'';display:inline-block;width:8px;height:8px;background:var(--safe);border-radius:50%;margin-right:14px;margin-top:8px;flex-shrink:0}
@media(max-width:720px){
.lernziele::before{padding-top:0}
}
.vorwissen{background:#fff;border:1px solid var(--rule);border-left:3px solid var(--info-orange); border-radius:0;box-shadow:none; padding:28px 32px;margin-bottom:48px;}
.vorwissen h2{font-family:'Fredoka',sans-serif;font-style:normal;font-weight:500; font-size:28px;color:var(--mathe-ink);margin-bottom:8px;}
.vorwissen .vw-intro{font-size:15px;color:var(--ink-soft);margin-bottom:22px}
.formel-box{background:linear-gradient(180deg,#faf6ee 0%,#f4ede0 100%); border:none;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule); border-radius:0; padding:48px 24px;margin:32px 0;text-align:center;box-shadow:none; position:relative;}
.formel-box::before{content:'';position:absolute;left:50%;top:14px;transform:translateX(-50%); width:32px;height:1px;background:var(--mathe-strong);opacity:0.4;}
.formel-box .label{font-size:11px;letter-spacing:0.24em;margin-bottom:14px;color:var(--ink-soft)}
.formel-box .formel{font-size:clamp(28px,3.5vw,42px);margin:0;color:var(--mathe-ink);letter-spacing:-0.01em}
.formel-box .where{font-size:14px;color:var(--ink-soft);margin-top:18px;line-height:1.7;max-width:50ch;margin-left:auto;margin-right:auto}
.worked{background:#fff;border:1px solid var(--rule); border-radius:14px; padding:36px 40px;margin:28px 0;box-shadow:0 1px 0 rgba(0,0,0,0.02); position:relative;}
.worked h3{font-family:'Fredoka',sans-serif;font-style:normal;font-weight:500; font-size:26px;color:var(--mathe-ink);margin-bottom:8px;letter-spacing:-0.005em;}
.worked .intro{font-size:15px;color:var(--ink-soft);margin-bottom:24px;line-height:1.65}
.hinweis-card{background:transparent;border:1px solid var(--rule); border-left:3px solid var(--info-orange);border-radius:0; padding:22px 26px;}
.hinweis-card h4{font-size:19px;margin-bottom:10px;letter-spacing:-0.005em}
.aufgabe{background:#fff;border:1px solid var(--rule); border-radius:14px; padding:32px 36px;margin-bottom:18px; transition:border-color .25s, box-shadow .25s;}
.aufgabe:hover{border-color:var(--mathe-deep);box-shadow:0 4px 16px rgba(0,0,0,0.04)}
.aufgabe.solved{border-color:var(--safe);background:linear-gradient(180deg,#fff 50%,#f6fbef 100%)}
.aufgabe.solved .aufgabe-num{background:transparent;color:var(--safe)}
.aufgabe-title{font-size:24px;letter-spacing:-0.005em;font-weight:500}
.video-item{border-radius:0;border:1px solid var(--rule)}
.video-item h4{font-size:22px;letter-spacing:-0.005em}
.video-item .v-source{letter-spacing:0.2em}
.glossar{background:transparent;border:none; border-top:1px solid var(--rule); border-radius:0;padding:32px 0 24px;margin-top:64px;}
.glossar summary{font-size:22px;letter-spacing:-0.005em}
.info-block{background:#fff;border:1px solid var(--rule); border-left:3px solid var(--danger); border-radius:0;padding:28px 32px;margin-bottom:40px;box-shadow:none;}
.info-block h2{font-family:'Fredoka',sans-serif;font-style:normal;font-weight:500; font-size:30px;color:var(--mathe-ink);margin-bottom:10px;}
.progress-sticky{background:rgba(255,255,255,0.94);backdrop-filter:blur(6px); border:1px solid var(--rule);border-radius:999px; padding:12px 22px;box-shadow:0 4px 14px rgba(0,0,0,0.04);}
.section-head{padding-bottom:18px;border-bottom:1px solid var(--rule)}
.section-head .badge{letter-spacing:0.18em;background:transparent;border:1px solid var(--mathe-strong);color:var(--mathe-strong);padding:5px 14px}
.section-head h2{font-size:clamp(28px,3.2vw,40px);letter-spacing:-0.005em}
.stats-bar{border-radius:999px;background:#fff}
.filter-btn{border-radius:999px;border-width:1.5px}
.fehler-toc{background:transparent;border:none;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);border-radius:0;padding:24px 0}
.topic-intro{font-size:17px;line-height:1.75;color:var(--ink-soft);max-width:68ch;margin-bottom:48px}
.check-btn, .vw-result button{border-radius:999px;padding:10px 22px;font-size:13px;letter-spacing:0.04em; background:var(--mathe-ink);}
.hilfe-btn{border-radius:999px;border-width:1.5px}
.subhead{font-family:inherit;font-style:normal;font-weight:700; font-size:26px;color:var(--mathe-ink);margin:36px 0 12px;letter-spacing:-0.005em;}
footer{background:#11241c;color:#a9c7b8;border-top:3px solid #3aa37a}
footer a:hover{color:#7fe3b6}
body{font-family:'Fredoka',Inter,-apple-system,sans-serif}
h1,h2,h3,h4{font-family:'Fredoka',sans-serif;font-weight:700;letter-spacing:-0.012em}
.eyebrow{font-family:'Fredoka',sans-serif;font-weight:600}
:root{--sh-sm:0 1px 2px rgba(40,30,25,.06),0 3px 8px rgba(40,30,25,.07);--sh-md:0 6px 14px -4px rgba(40,30,25,.12),0 16px 32px -12px rgba(40,30,25,.18)}
.subject-card,.grade-card,.topic-card,.sub-card,.phase,.feature,.hinweis-card,.aufgabe,.video-item{box-shadow:var(--sh-sm)!important;transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .25s,border-color .2s,background .2s}
.subject-card:hover,.grade-card:hover,.topic-card:hover,.feature:hover{box-shadow:var(--sh-md)!important;transform:translateY(-4px)}
.reveal{opacity:1;transform:none}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
.reveal{opacity:1!important;transform:none!important}
}
.subject-hero,.topic-hero{position:relative;background-color:#122236;}
.subject-hero::after,.topic-hero::after{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none}
.subject-hero .container,.topic-hero .container{position:relative;z-index:1}
.m-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:none;border:0;cursor:pointer;padding:10px;border-radius:10px}
.m-burger span{display:block;height:2.5px;width:100%;background:#2b241d;border-radius:2px;transition:transform .25s,opacity .2s}
.m-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.m-burger.open span:nth-child(2){opacity:0}
.m-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.m-menu{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(250,246,238,0.98);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,0,0,.08);box-shadow:0 18px 36px -12px rgba(40,25,40,.25);z-index:60}
.m-menu.open{display:block;animation:mDrop .22s ease}
@keyframes mDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.m-menu ul{display:flex;flex-direction:column;list-style:none;margin:0;padding:6px 0 12px}
.m-menu li{opacity:0;transform:translateY(-7px)}
.m-menu.open li{animation:mItem .28s ease forwards}
.m-menu.open li:nth-child(1){animation-delay:.02s}
.m-menu.open li:nth-child(2){animation-delay:.06s}
.m-menu.open li:nth-child(3){animation-delay:.10s}
.m-menu.open li:nth-child(4){animation-delay:.14s}
.m-menu.open li:nth-child(5){animation-delay:.18s}
.m-menu.open li:nth-child(6){animation-delay:.22s}
.m-menu.open li:nth-child(7){animation-delay:.26s}
@keyframes mItem{to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){
.m-menu.open{animation:none}
.m-menu li{opacity:1;transform:none}
.m-menu.open li{animation:none}
}
.m-menu a{display:block;padding:13px 26px;font-size:16px;font-family:'Fredoka',sans-serif;color:#2b241d;border-bottom:1px solid rgba(0,0,0,.04)}
.m-menu a:hover,.m-menu a.active{color:#3aa37a;background:rgba(58,163,122,.08)}
@media(max-width:560px){
.m-burger{display:flex}
}
@media(min-width:561px){
.m-burger,.m-menu{display:none!important}
}
em,i,cite,dfn{font-style:normal!important}
h1,h2,h3,h4{font-family:'Fredoka',sans-serif!important;font-weight:700;font-style:normal}
h1 em,h2 em,h3 em,h4 em{font-style:normal!important}
.subject-hero h1,.topic-hero h1,.hero h1{font-style:normal}
h1,h2,h3,h4,h5,h6,.section-head h2,.abschnitt-head h3,.sub-titel,.sub-num,.sub-arrow,.sub-meta,.topic-card h4,.grade-card h3,.subject-card h3,.subject-card h3 *,.aufgabe-title,.aufgabe-num,.worked h3,.applet h3,.hinweis-card h4,.glossar summary,.ausblick h3,.lernziele h2,.phase h4,.feature h4,.subtitle,.hero-lead,.lead,.topic-intro{font-family:'Fredoka',Inter,sans-serif!important;font-style:normal!important}
.subject-hero h1 em,.topic-hero h1 em,.hero h1 em{color:#fff!important;font-style:normal!important}
.vid-head{margin:48px 0 12px}
.vid-head .kick{display:inline-flex;align-items:center;gap:8px;font-family:'Fredoka',Inter,sans-serif;font-size:11.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--mathe-strong,#3a5a8c)}
.vid-head .kick svg{width:15px;height:15px}
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;margin:14px 0 0}
.video-grid.single{grid-template-columns:1fr;max-width:760px}
@media(max-width:760px){
.video-grid{grid-template-columns:1fr}
}
.video-embed{position:relative;width:100%;aspect-ratio:16/9;border:1px solid var(--rule);border-radius:16px;overflow:hidden;background:var(--mathe-ink,#15294a);box-shadow:var(--sh-md,0 16px 32px -12px rgba(20,30,55,.28))}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vplay{position:absolute;inset:0;width:100%;height:100%;padding:0;margin:0;border:0;background:none;display:block;cursor:pointer;font:inherit;color:#fff}
.vposter{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#3a5a8c 0%,#15294a 100%);transition:transform .5s cubic-bezier(.2,.8,.25,1)}
.vposter.alt{background:linear-gradient(135deg,#4a6f9b 0%,#1c3357 100%)}
.vposter.c3{background:linear-gradient(135deg,#2c5fb5 0%,#15294a 100%)}
.vposter.c4{background:linear-gradient(135deg,#5b8bd8 0%,#23406e 100%)}
.vposter.c5{background:linear-gradient(135deg,#33578f 0%,#101f3a 100%)}
.vp-ico{font-family:inherit;font-size:38px;color:rgba(255,255,255,.28);letter-spacing:.02em}
.vshade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.12) 0%,rgba(0,0,0,0) 38%,rgba(0,0,0,.55) 78%,rgba(0,0,0,.8) 100%)}
.vbtn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:68px;height:68px;border-radius:50%;background:var(--mathe-strong,#3a5a8c);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 28px rgba(0,0,0,.42);transition:transform .25s cubic-bezier(.2,.8,.25,1),background .25s}
.vbtn svg{width:30px;height:30px;margin-left:4px;color:#fff}
.vtitle{position:absolute;left:20px;right:20px;bottom:16px;font-family:'Fredoka',Inter,sans-serif;font-weight:600;font-size:17px;line-height:1.25;text-align:left;text-shadow:0 2px 10px rgba(0,0,0,.55)}
.vplay:hover .vposter{transform:scale(1.04)}
.vplay:hover .vbtn{transform:translate(-50%,-50%) scale(1.09)}
.vplay:focus-visible{outline:3px solid var(--mathe-strong,#3a5a8c);outline-offset:3px}
.video-cap{font-size:13.5px;color:var(--ink-soft,#5b4f43);margin-top:12px}
.video-cap a{color:var(--mathe-strong,#3a5a8c);text-decoration:underline}
@media(max-width:560px){
.vbtn{width:56px;height:56px}
.vbtn svg{width:24px;height:24px}
.vtitle{font-size:15px;left:15px;right:15px;bottom:13px}
}
@media(prefers-reduced-motion:reduce){
.vposter,.vbtn{transition:none}
}
@media print{
.video-grid,.vid-head,.video-cap{display:none}
}
.topic-hero .hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}
.topic-hero .hero-proof{display:flex;align-items:center;justify-content:center}
.topic-hero .hero-proof svg{width:100%;max-width:380px;height:auto;filter:drop-shadow(0 14px 30px rgba(0,0,0,0.35))}
@media(max-width:820px){
.topic-hero .hero-grid{grid-template-columns:1fr}
.topic-hero .hero-proof{order:-1;max-width:320px;margin:0 auto 8px}
}
@keyframes hpDrawIn{from{stroke-dashoffset:1000}to{stroke-dashoffset:0}}
@keyframes hpFadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@keyframes hpScaleIn{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}
@keyframes hpSlideR{from{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}
@keyframes hpRotate{to{transform:rotate(360deg)}}
@keyframes hpUpDown{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.hero-proof [data-anim]{transform-box:fill-box;transform-origin:center}
.hero-proof [data-anim="fadeIn"]{animation:hpFadeIn .9s cubic-bezier(.16,1,.3,1) both}
.hero-proof [data-anim="scaleIn"]{animation:hpScaleIn .9s cubic-bezier(.34,1.56,.64,1) both}
.hero-proof [data-anim="slideR"]{animation:hpSlideR .9s cubic-bezier(.16,1,.3,1) both}
.hero-proof [data-anim="drawIn"]{stroke-dasharray:1000;stroke-dashoffset:1000;animation:hpDrawIn 1.4s cubic-bezier(.65,0,.35,1) both}
.hero-proof [data-delay="1"]{animation-delay:.4s}
.hero-proof [data-delay="2"]{animation-delay:.9s}
.hero-proof [data-delay="3"]{animation-delay:1.5s}
.hero-proof [data-delay="4"]{animation-delay:2.1s}
.hero-proof [data-delay="5"]{animation-delay:2.7s}
.hero-proof [data-delay="6"]{animation-delay:3.4s}
@media(prefers-reduced-motion:reduce){
.hero-proof *{animation:none !important;opacity:1 !important;stroke-dashoffset:0 !important}
}
:root{--measure:none}
.erklaer-text,.intro-lead,.stichliste,.topic-intro,.lead,.kontext,.fakten,.erklaer-text p{max-width:none!important}
.erklaer-text,.erklaer-text p,.intro-lead,.topic-intro,.kontext{text-align:justify;text-justify:inter-word;-webkit-hyphens:auto;hyphens:auto;line-height:2.05}
.stichliste{line-height:1.95}
.stichliste li{line-height:1.85}
.aufgabe-text,.aufgabe-text p,.worked-step,.glossar-item .def{line-height:1.95}
.topic-hero .subtitle,.topic-hero .untertitel{font-size:17px!important;line-height:1.65!important;max-width:62ch!important}
.panel{padding:44px 0 100px}
.phase-head h2 em{font-style:normal!important}
.erklaer-text,.phase p,.lead,.intro-lead,.topic-intro,.aufgabe-text,.aufgabe-text p,.stichliste li{font-size:17px!important;line-height:1.7!important}
.erklaer-text,.erklaer-text p,.intro-lead,.topic-intro,.kontext{text-align:left!important;line-height:1.7!important}
.stichliste{line-height:1.7!important}
.uebersicht-card h3,.bruecke-bonus h3,.selbst h3{font-size:20px!important;font-style:normal!important;letter-spacing:-0.008em!important}
.aufgabe-title{font-size:17px!important;font-style:normal!important;font-weight:600!important;letter-spacing:0!important}
.section-head h2{font-size:27px!important;letter-spacing:-0.012em!important}
.formel-box{padding:30px 24px!important;border-radius:16px!important;border:1px solid var(--rule)!important}
.formel-box .formel{font-size:26px!important}
.glossar summary,.video-item h4{font-size:17px!important;letter-spacing:0!important}
.lernziele li{font-size:17px!important;line-height:1.6!important}
.input-row label sub,.aufgabe-text sub,.hilfe-content sub{font-size:0.72em;line-height:0;vertical-align:-0.28em;font-weight:inherit}
.aufgabe-body>.aufgabe-text{min-width:0;display:flex;flex-direction:column}
.aufgabe-body>.aufgabe-text>:last-child{margin-bottom:0}
.aufgabe-fig{display:flex;flex-direction:column;justify-content:center;align-self:stretch;min-width:0}
.aufgabe-fig svg{display:block;width:100%;max-height:250px;height:auto;background:var(--bg-soft);border:1px solid var(--rule);border-radius:12px;padding:14px;box-sizing:border-box}
.aufgabe-fig .fig-cap{margin-top:8px}
.aufgabe{display:flex;flex-direction:column}
.aufgabe-head{margin-bottom:14px}
@media(max-width:780px){
.aufgabe-fig{max-width:360px;margin:0 auto;width:100%}
}
.topic-hero>.container{width:100%;position:relative;z-index:2}
.topic-hero>.wow-hero-glyphs{position:absolute;inset:0}
.topic-hero>.wow-scroll-cue{position:absolute;bottom:18px;left:50%}
.subhead{font-size:21px!important;line-height:1.3!important;letter-spacing:-0.008em!important;margin:30px 0 10px!important}
.worked h3{font-size:20px!important;letter-spacing:-0.005em!important}
.vorwissen h2{font-size:22px!important;letter-spacing:-0.005em!important}
.bridge h3{font-size:20px!important;letter-spacing:-0.005em!important}
.uebersicht-card h3{font-size:20px!important}
.hinweis-card h4,.hinweis-card h3{font-size:17px!important;letter-spacing:-0.005em!important}
.formel-box .formel{font-size:26px!important;line-height:1.35!important}
.work-step .calc{font-size:19px!important}
.thema-head h2,.afb-block-head h2{font-size:21px!important}
.xlink .xt{font-size:16px!important}
@media(max-width:640px){
.subhead{font-size:19px!important}
.worked h3,.bridge h3,.vorwissen h2{font-size:18px!important}
.formel-box .formel{font-size:22px!important}
}
.subject-hero h1,.topic-hero h1,.hero h1{font-size:clamp(38px,5vw,58px)!important;line-height:1.06!important;letter-spacing:-0.015em!important;margin-bottom:0!important;white-space:normal!important}
.subject-hero .subtitle,.subject-hero .hero-lead,.subject-hero .lead,.subject-hero .untertitel,.subject-hero .topic-intro,.subject-hero .ah-lead,.subject-hero .sub,.topic-hero .subtitle,.topic-hero .hero-lead,.topic-hero .lead,.topic-hero .untertitel,.topic-hero .topic-intro,.topic-hero .ah-lead,.topic-hero .sub,.hero .subtitle,.hero .hero-lead,.hero .lead,.hero .untertitel,.hero .topic-intro,.hero .ah-lead,.hero .sub{font-family:'Fredoka',Inter,sans-serif!important;font-weight:400!important;font-size:16.5px!important;line-height:1.58!important;max-width:620px!important;margin-top:12px!important;margin-bottom:0!important;color:rgba(255,255,255,0.92)!important;display:-webkit-box!important;-webkit-box-orient:vertical!important;-webkit-line-clamp:2!important;overflow:hidden!important;text-wrap:initial!important}
.subject-hero .subtitle em,.subject-hero .hero-lead em,.subject-hero .lead em,.topic-hero .subtitle em,.topic-hero .hero-lead em,.topic-hero .lead em,.hero .subtitle em,.hero .hero-lead em,.hero .lead em,.subject-hero .subtitle strong,.topic-hero .subtitle strong,.hero .subtitle strong,.topic-hero .hero-lead strong,.topic-hero .lead strong{font-style:normal!important;font-weight:500!important;color:#fff!important}
.subject-hero .hero-grid,.topic-hero .hero-grid,.hero .hero-grid{grid-template-columns:620px minmax(0,1fr)!important}
@media(max-width:820px){
.subject-hero .hero-grid,.topic-hero .hero-grid,.hero .hero-grid{grid-template-columns:1fr!important}
}
@media(max-width:700px){
.subject-hero .subtitle,.subject-hero .hero-lead,.subject-hero .lead,.topic-hero .subtitle,.topic-hero .hero-lead,.topic-hero .lead,.hero .subtitle,.hero .hero-lead,.hero .lead{max-width:100%!important;-webkit-line-clamp:4!important}
}