.materi-hero{padding-top:24px}.materi-stats{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.materi-stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);text-align:center;padding:20px}.materi-stat strong{color:var(--secondary);margin-bottom:4px;font-size:1.75rem;font-weight:700;line-height:1;display:block}.materi-stat span{color:var(--muted);font-size:.8rem}.materi-featured-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;display:grid}.materi-category-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;display:grid}.materi-category-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);flex-direction:column;align-items:center;gap:6px;padding:24px 16px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex}.materi-category-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}.materi-category-card strong{color:var(--primary);text-align:center;font-size:.95rem}.materi-category-card small{color:var(--muted);font-size:.78rem}.materi-category-icon{font-size:2rem;line-height:1}.materi-filter{flex-wrap:wrap;gap:6px;display:flex}.materi-filter-chip{border:1px solid var(--line);border-radius:var(--radius-pill,999px);background:var(--surface);color:var(--muted);cursor:pointer;padding:6px 14px;font-size:.82rem;font-weight:500;transition:all .15s}.materi-filter-chip:hover{border-color:var(--secondary);color:var(--secondary)}.materi-filter-chip.is-active{background:var(--secondary);border-color:var(--secondary);color:var(--color-on-dark)}.materi-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.materi-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);flex-direction:column;gap:8px;height:100%;padding:18px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex}.materi-card:hover{box-shadow:var(--shadow-sm);border-color:#0000;transform:translateY(-2px)}.materi-card h3{color:var(--primary);margin:0;font-size:1.05rem;font-weight:600;line-height:1.3}.materi-card p{color:var(--muted);flex:1;margin:0;font-size:.86rem;line-height:1.5}.materi-card-top{justify-content:space-between;align-items:center;display:flex}.materi-card-emoji{font-size:1.5rem;line-height:1}.materi-card-footer,.materi-card-meta{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.materi-card-category{color:var(--secondary);font-size:.75rem;font-weight:600}.materi-card-duration{color:var(--muted);font-size:.75rem}.materi-badge{border-radius:var(--radius-pill,999px);align-items:center;padding:3px 10px;font-size:.72rem;font-weight:600;line-height:1.4;display:inline-flex}.materi-badge-category{background:var(--secondary-light);color:var(--secondary)}.materi-badge-level{background:var(--bg,#f0f2f5);color:var(--primary)}.materi-badge-difficulty.materi-difficulty-mudah{background:var(--whatsapp-light);color:var(--whatsapp-dark)}.materi-badge-difficulty.materi-difficulty-sedang{background:var(--color-background-orange);color:var(--color-text-orange)}.materi-badge-difficulty.materi-difficulty-mahir{background:var(--red-light);color:var(--red)}.materi-card-featured{flex-direction:row;align-items:flex-start;gap:14px}.materi-card-featured .materi-card-icon{flex-shrink:0;font-size:2rem}.materi-card-featured .materi-card-body{flex-direction:column;flex:1;gap:6px;display:flex}.materi-empty{text-align:center;color:var(--muted);padding:40px 20px}.materi-detail{max-width:800px;padding-top:16px}.materi-detail-header{margin:16px 0 24px}.materi-detail-badges{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.materi-detail-header h1{color:var(--primary);margin:0 0 10px;font-size:clamp(1.6rem,4vw,2.1rem);line-height:1.2}.materi-detail-desc{color:var(--muted);margin:0 0 12px;font-size:1.02rem;line-height:1.6}.materi-detail-meta{color:var(--muted);flex-wrap:wrap;gap:16px;font-size:.85rem;display:flex}.materi-video-wrap{aspect-ratio:16/9;border-radius:var(--radius-md,12px);background:var(--color-on-light);width:100%;margin:0 0 24px;position:relative;overflow:hidden}.materi-video-wrap iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.materi-content{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);padding:24px}.materi-downloads{margin:24px 0}.materi-download-list{flex-direction:column;gap:8px;display:flex}.materi-download-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);color:var(--primary);justify-content:space-between;align-items:center;padding:14px 18px;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.materi-download-item:hover{border-color:var(--secondary);box-shadow:var(--shadow-sm)}.materi-download-arrow{color:var(--secondary);font-size:.85rem;font-weight:600}.materi-related{margin:32px 0}.materi-related-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;display:grid}.materi-card-mini{gap:6px;padding:16px}.materi-card-mini h3{font-size:.95rem}.materi-back{border-top:1px solid var(--line);margin-top:32px;padding-top:24px}.materi-back a{color:var(--secondary);font-weight:600;text-decoration:none}.materi-back a:hover{text-decoration:underline}.quiz-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);margin:24px 0;padding:24px}.quiz-header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.quiz-progress-label{color:var(--secondary);white-space:nowrap;font-size:.82rem;font-weight:600}.quiz-progress-bar{background:var(--line);border-radius:3px;flex:1;height:6px;overflow:hidden}.quiz-progress-fill{background:var(--secondary);border-radius:3px;height:100%;transition:width .3s}.quiz-question{color:var(--primary);margin:0 0 16px;font-size:1.05rem;font-weight:600;line-height:1.5}.quiz-options{flex-direction:column;gap:8px;display:flex}.quiz-option{background:var(--surface);border:2px solid var(--line);border-radius:var(--radius-md,12px);cursor:pointer;text-align:left;color:var(--primary);align-items:center;gap:12px;padding:12px 16px;font-size:.92rem;transition:all .15s;display:flex}.quiz-option:hover:not(:disabled){border-color:var(--secondary)}.quiz-option:disabled{cursor:default}.quiz-option-letter{background:var(--bg,#f0f2f5);width:28px;height:28px;color:var(--muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.82rem;font-weight:700;display:inline-flex}.quiz-option-selected{border-color:var(--secondary);background:var(--secondary-light)}.quiz-option-selected .quiz-option-letter{background:var(--secondary);color:var(--color-on-dark)}.quiz-option-correct{border-color:var(--whatsapp);background:var(--whatsapp-light)}.quiz-option-correct .quiz-option-letter{background:var(--whatsapp);color:var(--color-on-dark)}.quiz-option-wrong{border-color:var(--red);background:var(--red-light)}.quiz-option-wrong .quiz-option-letter{background:var(--red);color:var(--color-on-dark)}.quiz-icon{margin-left:auto;font-size:1.1rem;font-weight:700}.quiz-icon-correct{color:var(--whatsapp-dark)}.quiz-icon-wrong{color:var(--red)}.quiz-explanation{background:var(--surface);border-left:3px solid var(--secondary);border-radius:var(--radius-sm);color:var(--muted);margin-top:12px;padding:12px 16px;font-size:.88rem;line-height:1.6}.quiz-nav{justify-content:space-between;gap:8px;margin-top:20px;display:flex}.quiz-btn{border-radius:var(--radius-sm,8px);cursor:pointer;border:none;padding:9px 20px;font-size:.88rem;font-weight:600;transition:all .15s}.quiz-btn:disabled{opacity:.5;cursor:not-allowed}.quiz-btn-primary{background:var(--secondary);color:var(--color-on-dark)}.quiz-btn-primary:hover:not(:disabled){background:var(--secondary-hover)}.quiz-btn-secondary{color:var(--muted);border:1px solid var(--line);background:0 0}.quiz-btn-secondary:hover:not(:disabled){background:var(--bg,#f0f2f5)}.quiz-result{text-align:center;padding:16px 0}.quiz-result-score{flex-direction:column;align-items:center;gap:4px;margin-bottom:12px;display:flex}.quiz-score-number{color:var(--secondary);font-size:2.5rem;font-weight:800;line-height:1}.quiz-score-label{font-size:1.1rem;font-weight:600}.quiz-result-text{color:var(--muted);margin-bottom:20px}.flashcard-block{margin:24px 0}.flashcard-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.flashcard-title{color:var(--primary);font-weight:600}.flashcard-counter{color:var(--muted);font-size:.82rem}.flashcard-card{cursor:pointer;perspective:1000px;background:0 0;border:none;width:100%;min-height:160px;display:block}.flashcard-inner{width:100%;min-height:160px;transform-style:preserve-3d;transition:transform .5s;position:relative}.flashcard-flipped .flashcard-inner{transform:rotateY(180deg)}.flashcard-face{border-radius:var(--radius-md,12px);backface-visibility:hidden;text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0}.flashcard-front{background:var(--secondary);color:var(--color-on-dark)}.flashcard-back{background:var(--surface);border:2px solid var(--secondary);color:var(--primary);transform:rotateY(180deg)}.flashcard-hint{opacity:.7;margin-bottom:8px;font-size:.72rem}.flashcard-text{margin:0;font-size:1.15rem;font-weight:600;line-height:1.4}.flashcard-nav{justify-content:space-between;margin-top:12px;display:flex}.flashcard-btn{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm,8px);color:var(--primary);cursor:pointer;padding:8px 16px;font-size:.85rem}.flashcard-btn:hover:not(:disabled){border-color:var(--secondary);color:var(--secondary)}.flashcard-btn:disabled{opacity:.5}.checklist-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md,12px);margin:24px 0;padding:20px}.checklist-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.checklist-title{color:var(--primary);font-weight:600}.checklist-progress{color:var(--secondary);font-size:.82rem;font-weight:600}.checklist-bar{background:var(--line);border-radius:3px;height:6px;margin-bottom:14px;overflow:hidden}.checklist-bar-fill{background:var(--secondary);border-radius:3px;height:100%;transition:width .3s}.checklist-items{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.checklist-item{padding:6px 0}.checklist-item label{cursor:pointer;color:var(--primary);align-items:flex-start;gap:10px;font-size:.92rem;line-height:1.5;display:flex}.checklist-item input[type=checkbox]{width:18px;height:18px;accent-color:var(--secondary);flex-shrink:0;margin-top:3px}.checklist-item-done label{color:var(--muted);text-decoration:line-through}.checklist-complete{text-align:center;color:var(--whatsapp-dark);margin-top:12px;font-weight:600}@media (width<=540px){.materi-stats{gap:8px}.materi-stat{padding:14px 8px}.materi-stat strong{font-size:1.4rem}.materi-card{padding:16px}.materi-content,.quiz-block,.checklist-block{padding:18px}.materi-filter{width:100%}.section-head{flex-direction:column;align-items:flex-start;gap:12px}}