.topic-hub{min-width:0;overflow:clip}.topic-opening{display:grid;grid-template-columns:minmax(20rem,.72fr) minmax(0,1.28fr);min-height:23rem;padding-top:clamp(3rem,7vw,6rem);border-bottom:1px solid var(--line-strong)}.topic-opening>div{padding:0 clamp(2rem,5vw,5rem) clamp(3rem,6vw,5rem) 0;border-right:1px solid var(--line)}.topic-opening h1{max-width:15ch;margin:0;font-size:clamp(2.35rem,4.2vw,3.75rem);font-weight:660;letter-spacing:-.035em;line-height:.98;text-wrap:balance}.opening-thesis{max-width:28ch;margin:clamp(1.5rem,3vw,2.5rem) 0 0;color:var(--muted);font-size:clamp(1.2rem,2vw,1.65rem);line-height:1.42;text-wrap:balance}.start-route{position:relative;min-width:0;padding:0 0 clamp(3rem,6vw,5rem) clamp(2rem,5vw,5rem)}.start-route h2{margin:0 0 clamp(1.5rem,3vw,2.25rem);font-size:clamp(1.5rem,2.4vw,2rem);font-weight:640;letter-spacing:-.025em;line-height:1.1}.start-route ol{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:0;padding:0;list-style:none}.start-route li{position:relative;min-width:0;padding-right:clamp(.75rem,2vw,1.5rem)}.route-number{display:block;color:var(--red);font-family:Plex Mono,monospace;font-size:clamp(1.3rem,2.2vw,1.85rem);font-variant-numeric:tabular-nums;line-height:1}.start-route a{display:grid;gap:.45rem;min-height:6.4rem;padding-top:1rem;color:inherit;text-decoration:none}.start-route small{color:var(--muted);font-size:.84rem;line-height:1.3}.start-route strong{color:var(--red);font-size:clamp(.95rem,1.35vw,1.12rem);font-weight:620;letter-spacing:-.012em;line-height:1.25}.route-line{position:absolute;top:.75rem;right:.75rem;left:2.8rem;height:1px;background:var(--red)}.route-line:after{position:absolute;top:-.23rem;right:-.05rem;width:.45rem;height:.45rem;border-top:1px solid var(--red);border-right:1px solid var(--red);content:"";transform:rotate(45deg)}.start-route li:last-child .route-line{display:none}.route-handover{position:absolute;right:0;bottom:0;left:clamp(2rem,5vw,5rem);height:2.2rem;border-right:1px solid var(--red);border-bottom:1px solid var(--red);border-left:1px solid var(--red);clip-path:inset(0 0 0 0);animation:topic-handover var(--motion-focal) var(--ease-register) both}.route-handover:before{position:absolute;bottom:-.28rem;left:-.3rem;width:.55rem;height:.55rem;border-bottom:1px solid var(--red);border-left:1px solid var(--red);content:"";transform:rotate(-45deg)}@keyframes topic-handover{0%{clip-path:inset(0 0 0 100%)}}.topic-register{padding-block:clamp(1.5rem,3vw,2.5rem) var(--section-space)}.topic-register>header,.topic-tools>header{display:grid;grid-template-columns:minmax(15rem,.7fr) minmax(0,1.3fr);gap:clamp(2rem,6vw,6rem);align-items:end;margin-bottom:clamp(1.5rem,3vw,2.5rem)}.topic-register h2,.topic-tools h2{margin:0;font-size:clamp(1.85rem,3.4vw,2.8rem);font-weight:660;letter-spacing:-.03em;line-height:1.03}.topic-register>header p,.topic-tools>header p{max-width:62ch;margin:0;color:var(--muted);line-height:1.58}.register-head,.topic-list a{display:grid;grid-template-columns:minmax(15rem,.95fr) minmax(22rem,1.5fr) minmax(6rem,.32fr) minmax(8rem,.5fr) 1.25rem;gap:clamp(1rem,2.2vw,2rem)}.register-head{padding:.65rem 0;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);color:var(--notation);font-family:Plex Mono,monospace;font-size:.66rem}.topic-list{margin:0;padding:0;list-style:none}.topic-list li{border-bottom:1px solid var(--line)}.topic-list a{min-width:0;align-items:center;padding-block:.95rem;text-decoration:none;transition:background-color var(--motion-feedback) var(--ease-register)}.topic-list a:hover,.topic-list a:focus-visible{background:var(--paper-tint)}.topic-name{display:grid;grid-template-columns:2rem minmax(0,1fr);gap:.75rem;min-width:0;align-items:baseline}.topic-name small,.topic-count,.topic-prerequisite{color:var(--notation);font-family:Plex Mono,monospace;font-size:.68rem}.topic-name strong{font-size:clamp(1rem,1.3vw,1.14rem);font-weight:630;letter-spacing:-.015em;line-height:1.25;overflow-wrap:break-word}.topic-excerpt{max-width:67ch;color:var(--muted);font-size:.93rem;line-height:1.45}.topic-count{display:grid;line-height:1.2}.topic-count b{color:var(--ink);font-size:.84rem;font-weight:400}.topic-count small{font-family:Atkinson,sans-serif;font-size:.72rem}.topic-prerequisite.has-prerequisite{color:var(--red)}.topic-list svg{width:1rem;color:var(--red);transition:transform var(--motion-feedback) var(--ease-register)}.topic-list a:hover svg,.topic-list a:focus-visible svg{transform:translate(.25rem)}.topic-tools{padding-block:var(--section-space);border-top:1px solid var(--line-strong)}.topic-tools ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:0;padding:0;border-block:1px solid var(--line-strong);list-style:none}.topic-tools li+li{border-left:1px solid var(--line)}.topic-tools a{display:grid;grid-template-columns:minmax(0,1fr) 1.5rem;gap:1.25rem;align-items:center;min-height:8rem;padding:1.4rem;text-decoration:none}.topic-tools a>span{display:grid;gap:.55rem}.topic-tools strong{font-size:1.15rem}.topic-tools small{color:var(--muted);font-size:.9rem;line-height:1.45}.topic-tools svg{width:1.25rem;color:var(--red);transition:transform var(--motion-feedback) var(--ease-register)}.topic-tools a:hover svg,.topic-tools a:focus-visible svg{transform:translate(.25rem)}@media(max-width:70rem){.register-head{display:none}.topic-list{border-top:1px solid var(--line-strong)}.topic-list a{grid-template-columns:minmax(14rem,.85fr) minmax(0,1.15fr) 5rem 1rem}.topic-prerequisite{grid-column:2}}@media(max-width:56rem){.topic-opening{grid-template-columns:minmax(0,1fr)}.topic-opening>div{padding-right:0;border-right:0}.start-route{padding-left:0;border-top:1px solid var(--line-strong)}.route-handover{left:0}.topic-register>header,.topic-tools>header{grid-template-columns:minmax(0,1fr);gap:1rem}.topic-list a{grid-template-columns:minmax(0,1fr) 4rem 1rem}.topic-excerpt{grid-column:1 / -1;grid-row:2}.topic-prerequisite{grid-column:1 / -1;grid-row:3}}@media(max-width:40rem){.topic-opening{padding-top:2.5rem}.topic-opening h1{font-size:clamp(2.2rem,11vw,2.9rem)}.start-route ol{grid-template-columns:minmax(0,1fr);border-top:1px solid var(--line)}.start-route li{display:grid;grid-template-columns:2rem minmax(0,1fr);gap:.75rem;padding:0;border-bottom:1px solid var(--line)}.route-number{padding-top:1.15rem;font-size:.75rem}.start-route a{min-height:0;padding-block:1rem}.route-line,.route-handover{display:none}.topic-list a{grid-template-columns:minmax(0,1fr) 1rem;gap:.75rem 1rem;padding-block:1.15rem}.topic-name{grid-column:1}.topic-list svg{grid-column:2;grid-row:1}.topic-excerpt,.topic-count,.topic-prerequisite{grid-column:1 / -1}.topic-count{display:flex;gap:.35rem;align-items:baseline}.topic-prerequisite:before{color:var(--notation);content:"Zuerst: "}.topic-tools ul{grid-template-columns:minmax(0,1fr)}.topic-tools li+li{border-top:1px solid var(--line);border-left:0}.topic-tools a{min-height:6.5rem;padding-inline:0}}@media(prefers-reduced-motion:reduce){.route-handover{animation:none}.topic-list a,.topic-list svg,.topic-tools svg{transition:none}}