.subject-section{margin-bottom:3rem}.subject-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.subject-icon{width:3.5rem;height:3.5rem;padding:.75rem;background:linear-gradient(135deg,#fffffff2,#ffffffb3);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 2px 8px #0000000f,inset 0 1px #ffffffe6;transition:all .3s ease}.subject-icon svg{width:100%;height:100%;stroke-width:2.5}.subject-header:hover .subject-icon{transform:scale(1.08);box-shadow:0 4px 12px #00000014,inset 0 1px #fff}.subject-info{flex:1}.subject-title{font-size:1.5rem;font-weight:700;color:#2d2d2d;line-height:1.2;margin:0}.subject-tagline{font-size:.875rem;color:#5a5a5a;margin:.25rem 0 0}.topics-container{position:relative;background:#f8f9fa;border-radius:1.5rem;padding:3rem 4rem;overflow:hidden}.scroll-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:3rem;height:3rem;border-radius:50%;background:#fff;border:1px solid #E0E0E0;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 6px #00000014;color:#2d2d2d}.scroll-arrow:hover{background:#fff;border-color:silver;box-shadow:0 4px 10px #0000001f;transform:translateY(-50%) scale(1.05)}.scroll-arrow-left{left:1rem}.scroll-arrow-right{right:1rem}.topics-scroll{display:flex;gap:1.25rem;overflow-x:auto;padding:1rem 0;cursor:grab;-ms-overflow-style:none;scrollbar-width:none;user-select:none;-webkit-user-select:none;-moz-user-select:none;align-items:flex-start}.topics-scroll::-webkit-scrollbar{display:none}.topic-card-wrapper{display:flex;flex-direction:column;align-items:center;flex-shrink:0}.topic-card{position:relative;width:9.5rem;height:9.5rem;display:flex;align-items:center;justify-content:center;text-decoration:none;background:#fff;border:2px solid #E5E7EB;border-radius:1rem;box-shadow:0 1px 2px #0000000d;transition:all .2s ease;pointer-events:auto;margin-bottom:.875rem}.topic-checkmark{position:absolute;top:-12px;right:-12px;width:2.5rem;height:2.5rem;background:linear-gradient(135deg,#10b981,#059669);border-radius:50%;display:none;align-items:center;justify-content:center;font-size:1.25rem;z-index:10;box-shadow:0 4px 12px #10b98166;border:3px solid #FFFBEB;animation:checkmark-appear .5s cubic-bezier(.68,-.55,.265,1.55)}.topic-checkmark.show{display:flex}@keyframes checkmark-appear{0%{transform:scale(0) rotate(-180deg);opacity:0}50%{transform:scale(1.1) rotate(10deg)}to{transform:scale(1) rotate(0);opacity:1}}.topic-checkmark:before{content:"✓";color:#fff;font-weight:700;font-size:1.5rem;line-height:1}.topic-card:hover{transform:translateY(-4px);box-shadow:0 10px 25px #0000001a;border-color:#d1d5db}.topic-card-sky-200{border-color:#b3d7ff}.topic-card-sky-200:hover,.topic-card-sky-200:focus{border-color:#66afff;background:#f0f7ff}.topic-card-sage-200{border-color:#b8e8d8}.topic-card-sage-200:hover,.topic-card-sage-200:focus{border-color:#82d6b8;background:#f0faf6}.topic-card-coral-200{border-color:#ffb3b3}.topic-card-coral-200:hover,.topic-card-coral-200:focus{border-color:#ff8c8c;background:#fff0f0}.topic-card-peach-200{border-color:#ffd4b8}.topic-card-peach-200:hover,.topic-card-peach-200:focus{border-color:#ffc299;background:#fff5f0}.topic-card-lavender-200{border-color:#d4c5f9}.topic-card-lavender-200:hover,.topic-card-lavender-200:focus{border-color:#c0a6f3;background:#f5f3ff}.topic-badge-new{position:absolute;top:.5rem;right:.5rem;background:#52b88e;color:#fff;font-size:.625rem;font-weight:700;padding:.25rem .5rem;border-radius:.25rem;text-transform:uppercase;letter-spacing:.5px}.topic-card-icon-box{display:flex;align-items:center;justify-content:center;width:100%;height:100%;padding:1.5rem}.topic-card-icon{width:5rem;height:5rem;padding:1rem;background:linear-gradient(135deg,#fffffff2,#ffffffb3);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .35s cubic-bezier(.34,1.56,.64,1);box-shadow:0 2px 10px #0000000f,inset 0 1px #ffffffe6}.topic-card-icon svg{width:100%;height:100%;stroke-width:2.5}.topic-card:hover .topic-card-icon{transform:scale(1.12) rotate(8deg);box-shadow:0 4px 18px #0000001a,inset 0 1px #fff;background:linear-gradient(135deg,#fff,#fffc)}.topic-card-label{font-size:.875rem;font-weight:500;line-height:1.3;color:#2d2d2d;margin:0;text-align:center;max-width:9.5rem;padding:0 .5rem}@media (max-width: 768px){.subject-icon{font-size:2.5rem}.subject-title{font-size:1.25rem}.subject-tagline{font-size:.75rem}.topics-container{padding:2rem 3rem}.scroll-arrow{width:2.5rem;height:2.5rem}.scroll-arrow-left{left:.5rem}.scroll-arrow-right{right:.5rem}.topics-scroll{gap:1rem}.topic-card{width:7.5rem;height:7.5rem}.topic-card-icon{font-size:3rem}.topic-card-label{font-size:.75rem;max-width:7.5rem}}