.container{max-width:800px;margin:0 auto;padding:20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}header{text-align:center;margin-bottom:40px}h1{color:#2563eb;margin-bottom:10px}.section{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 6px rgba(0,0,0,.1);margin-bottom:20px}.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:15px;gap:15px;margin-top:20px}.category-btn{background:#f3f4f6;border:2px solid #e5e7eb;border-radius:8px;padding:20px;font-size:16px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px}.category-btn:hover{background:#2563eb;color:#fff;border-color:#2563eb}.custom-category-btn:hover{background:linear-gradient(135deg,#5a67d8,#6b46c1)!important;transform:translateY(-2px);box-shadow:0 8px 15px rgba(0,0,0,.2)}.custom-category:hover{background:#e0f2fe!important;border-color:#0284c7!important;transform:translateY(-2px);box-shadow:0 6px 12px rgba(2,132,199,.2)}.game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.score-info{display:flex;gap:20px;font-size:18px;font-weight:700}.reset-btn{background:#dc2626;color:#fff;border:none;padding:10px 20px;border-radius:6px;cursor:pointer}.question-area{text-align:center}.question{background:#f8fafc;padding:30px;border-radius:8px;margin-bottom:20px;font-size:18px;line-height:1.6}.help-buttons{display:flex;gap:15px;margin-bottom:20px;justify-content:center;flex-wrap:wrap}.hint-btn{background:#fef3c7;color:#92400e;border:2px solid #f59e0b;border-radius:6px;padding:10px 20px;cursor:pointer;font-size:14px;transition:all .2s}.hint-btn:hover:not(:disabled){background:#fde68a;border-color:#d97706}.hint-btn:disabled{opacity:.5;cursor:not-allowed}.reveal-btn{background:#fee2e2;color:#dc2626;border:2px solid #f87171;border-radius:6px;padding:10px 20px;cursor:pointer;font-size:14px;transition:all .2s}.reveal-btn:hover:not(:disabled){background:#fecaca;border-color:#ef4444}.reveal-btn:disabled{opacity:.5;cursor:not-allowed}.hint{background:#fef3c7;padding:15px;border-radius:6px;margin-bottom:20px;color:#92400e;border-left:4px solid #f59e0b}.answer-input{display:flex;gap:15px;margin-bottom:20px;max-width:500px;margin-left:auto;margin-right:auto}.answer-input input{flex:1 1;padding:12px;border:2px solid #e5e7eb;border-radius:6px;font-size:16px}.answer-input button{background:#2563eb;color:#fff;border:none;padding:12px 24px;border-radius:6px;cursor:pointer;font-size:16px}.answer-reveal{background:#f8fafc;padding:20px;border-radius:8px;margin-top:20px}.correct-answer{margin-bottom:15px;font-size:18px}.result{margin-bottom:20px;font-size:20px;font-weight:700}.correct{color:#16a34a}.correct-close{color:#059669;font-style:italic}.incorrect{color:#dc2626}.next-btn{background:#16a34a;color:#fff;border:none;padding:12px 24px;border-radius:6px;cursor:pointer;font-size:16px}.loading{text-align:center;font-size:24px;margin-top:50px}.hidden{display:none}