/* Schmale Lesespalte; Kapitel und Arbeitsschritte stehen bewusst untereinander. */
.course-heading h1{font-size:clamp(1.8rem,4vw,2.35rem)}
.compact-search .search-field input,.search-form .search-field input{padding:.6rem 0;min-height:44px}
.search-form{margin-bottom:1.35rem}.search-label{margin-bottom:.35rem}
.project-entry .project-course-link{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px;padding:1rem .3rem}
.project-course-link:hover,.chapter-row:hover{background:var(--hover)}
.project-course-link h2{font:500 1.125rem/1.4 var(--font)}
.project-course-link small{display:block;color:var(--muted);font-size:.8125rem;margin-top:.25rem}
.project-search-results{padding:0 0 1rem 1.25rem;border-left:2px solid var(--accent)}
.project-heading,.chapter-topline{display:flex;justify-content:space-between;align-items:center;gap:.5rem 1.5rem;flex-wrap:wrap}
.project-heading{margin-bottom:1rem}.project-heading h1{margin:0}
.project-intro{max-width:43rem;font-size:1.0625rem;line-height:1.65;margin:0 0 1rem}
.project-device-note,.chapter-access-note,.chapter-topline{font-size:.875rem;color:var(--muted)}
.project-device-note{margin:0 0 1.75rem}.chapter-access-note{margin:1rem 0 2rem}
.chapter-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.chapter-list>li{margin:0;border-bottom:1px solid var(--line)}
.chapter-row{display:flex;align-items:center;gap:1.2rem;min-height:90px;padding:1.05rem .4rem}
.chapter-number{font:1.5rem/1 var(--serif);color:var(--accent);flex:0 0 1.4rem;text-align:center;font-variant-numeric:tabular-nums}
.chapter-copy{flex:1;min-width:0}.chapter-label{display:block;font-size:.8125rem;color:var(--muted);margin-bottom:.18rem}
.chapter-title{display:block;font-size:1.15rem;line-height:1.4;font-weight:500}.chapter-arrow{color:var(--muted)}
.project-materials{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:1.5rem 0}
.project-materials>summary,.chapter-help>summary{min-height:48px;padding:.75rem .3rem;text-decoration:underline;text-underline-offset:4px}
.project-materials[open]{padding-bottom:1rem}.project-materials form{margin-top:.7rem}
.project-extras{margin:2rem 0}.project-extras h2{font-size:1.1rem;margin-bottom:.6rem}
.chapter-topline{margin-bottom:.7rem}.chapter-topline+.project-intro{margin-top:1rem}
.chapter-start{border-left:3px solid var(--accent);padding:.25rem 0 .25rem 1.1rem;margin:1.6rem 0 2.2rem}
.chapter-start h2{font-size:1rem}.chapter-start p{margin:.5rem 0 0}
.chapter-start .text-link{font-size:.9375rem}
.chapter-step{padding:1.65rem 0 2rem;border-top:1px solid var(--line)}
.chapter-step h2{font-size:1.2rem}.chapter-step>p{margin:.75rem 0 1rem}
.step-materials{border-top:1px solid var(--line);margin-left:1rem}.step-materials .material-link{padding:.85rem .4rem;min-height:68px}
.chapter-help{margin:1rem 0 0 1rem;color:var(--muted)}.chapter-help .material-link{color:var(--ink)}
.chapter-finish{border-top:1px solid var(--line);padding:1.6rem 0 2rem}.chapter-finish h2{font-size:1.2rem}
.chapter-finish p{margin:.65rem 0}.chapter-finish .button{margin-top:.6rem}
.chapter-pagination{border-top:1px solid var(--line);padding-top:.5rem;display:flex;flex-direction:column}
.chapter-pagination>a{display:flex;flex-direction:column;gap:.15rem;padding:.8rem .3rem;min-height:48px;border-bottom:1px solid var(--line)}
.chapter-pagination>a:hover{background:var(--hover)}.chapter-pagination span{font-size:.8125rem;color:var(--muted)}.chapter-pagination strong{font-size:1rem;font-weight:500}
.chapter-pagination .project-overview-link{padding:1rem .3rem;text-decoration:underline;text-underline-offset:4px;border-bottom:0}
.material-notice{color:var(--muted)}
@media(max-width:600px){.chapter-row{gap:.75rem;padding:1rem .1rem;min-height:86px}.chapter-title{font-size:1.0625rem}.chapter-topline{align-items:flex-start}.chapter-topline .text-link{flex-basis:100%}.step-materials,.chapter-help{margin-left:0}.project-heading .text-link{font-size:.9375rem}}
@media print{.chapter-pagination,.project-heading>.text-link,.chapter-topline>.text-link,.chapter-start>.text-link,.chapter-finish>.button{display:none!important}.chapter-step{break-inside:avoid}.project-intro{font-size:1rem}}