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ease}.category-chip:hover{background:#ffffff1a;color:var(--text-primary);transform:translateY(-2px)}.category-chip.active{background:linear-gradient(135deg,var(--accent-1),var(--accent-2));border-color:transparent;color:#fff;box-shadow:0 4px 20px #6366f166}.score-display{text-align:center;flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center}.score-circle{width:140px;height:140px;border-radius:50%;background:linear-gradient(135deg,var(--accent-1),var(--accent-2));display:flex;align-items:center;justify-content:center;font-size:2.5rem;font-weight:700;margin-bottom:20px}.score-text{font-size:1.2rem;color:var(--text-secondary);margin-bottom:10px}.score-breakdown{display:flex;gap:20px;margin-top:20px}.score-item{text-align:center}.score-item-number{font-size:1.5rem;font-weight:700}.score-item-label{font-size:.85rem;color:var(--text-secondary)}.score-item.correct .score-item-number{color:var(--success)}.score-item.wrong .score-item-number{color:var(--error)}.popup-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:all .2s ease}.popup-overlay.visible{opacity:1;visibility:visible}.popup{background:#1a1a2e;border:1px solid var(--border-color);border-radius:16px;padding:20px;max-width:360px;width:90%;transform:scale(.9);transition:transform .2s ease}.popup-overlay.visible .popup{transform:scale(1)}.popup-title{text-align:center;margin-bottom:16px;font-size:.9rem;color:var(--text-secondary)}.popup-options{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.popup-option{padding:14px;border-radius:10px;border:2px solid var(--border-color);background:var(--bg-card);color:var(--text-primary);font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit}.popup-option:hover{transform:translateY(-2px);background:#6366f133;border-color:var(--accent-1)}.feedback{text-align:center;padding:16px;border-radius:12px;margin-top:16px;font-weight:500;animation:fadeIn .3s ease}.feedback.correct{background:#22c55e26;color:var(--success)}.feedback.incorrect{background:#ef444426;color:var(--error)}.tag{padding:4px 10px;border-radius:6px;background:#ffffff0d;color:var(--text-muted);font-size:.75rem}.tag-category{padding:6px 14px;border-radius:20px;background:#6366f126;color:var(--accent-1);font-size:.8rem;font-weight:500}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.hidden{display:none!important}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--success)}.text-error{color:var(--error)}.apps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.controls{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;margin-bottom:40px}.category-filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}@media (max-width: 768px){.platform-title{font-size:1.8rem}.apps-grid{grid-template-columns:1fr}.platform-container{padding:20px 16px}}