.stats-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-bottom:30px}.stat-card{background:white;border-radius:20px;padding:20px;display:flex;align-items:center;gap:16px;border:1px solid var(--gray-200);transition:all 0.3s}.stat-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,0.1)}.stat-icon{width:50px;height:50px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary-color)}.stat-value{font-size:1.6rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.75rem;color:var(--gray-500)}.options-section{background:var(--gray-50);border-radius:20px;padding:20px;margin-bottom:24px}.options-section h3{font-size:1rem;margin-bottom:16px;color:var(--gray-700);display:flex;align-items:center;gap:8px}.options-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}.option-group label{display:block;font-size:0.8rem;font-weight:600;margin-bottom:10px;color:var(--gray-700)}.sort-buttons,.type-buttons{display:flex;flex-wrap:wrap;gap:8px}.sort-btn,.type-btn{background:white;border:1px solid var(--gray-300);padding:6px 14px;border-radius:30px;font-size:0.75rem;cursor:pointer;transition:all 0.2s}.sort-btn i,.type-btn i{margin-right:4px}.sort-btn.active,.type-btn.active{background:var(--primary-color);border-color:var(--primary-color);color:white}.advanced-options{display:flex;flex-direction:column;gap:8px}.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:0.8rem}.checkbox-label input{display:none}.checkmark{width:18px;height:18px;border:2px solid var(--gray-400);border-radius:4px;display:inline-block;position:relative;transition:all 0.2s;flex-shrink:0}.checkbox-label input:checked+.checkmark{background:var(--primary-color);border-color:var(--primary-color)}.checkbox-label input:checked+.checkmark::after{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;font-size:10px;color:white;position:absolute;top:50%;left:50%;transform:translate(-50%, -50%)}.editor-container{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.editor-panel{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--gray-200);box-shadow:0 4px 20px rgba(0,0,0,0.05)}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, var(--gray-50), #fafafa);border-bottom:1px solid var(--gray-200);flex-wrap:wrap;gap:12px}.panel-title{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--gray-700)}.panel-title i{color:var(--primary-color)}.panel-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.action-btn{background:transparent;border:none;padding:6px 12px;border-radius:30px;cursor:pointer;font-size:0.75rem;transition:all 0.2s;color:var(--gray-600)}.action-btn:hover{background:var(--gray-200);color:var(--primary-color)}.sort-action-btn{padding:6px 20px}.input-textarea{width:100%;min-height:320px;padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0;line-height:1.6}.input-textarea:focus{outline:none}.output-wrapper{min-height:320px;max-height:400px;overflow:auto;background:#1a1a2e}.output-textarea{margin:0;padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;color:#4ade80;white-space:pre-wrap;word-break:break-all;line-height:1.6}.panel-footer{padding:8px 20px;background:var(--gray-50);border-top:1px solid var(--gray-200);display:flex;gap:20px;font-size:0.7rem;color:var(--gray-500)}.preview-section{margin-bottom:24px}.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:16px}.preview-item{background:var(--gray-50);border-radius:16px;padding:16px}.preview-label{font-size:0.7rem;color:var(--gray-500);margin-bottom:8px}.preview-value{font-family:monospace;font-size:0.8rem;color:var(--gray-800);max-height:100px;overflow-y:auto}.algorithm-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;margin-top:16px}.algo-card{background:var(--gray-50);border-radius:16px;padding:16px;text-align:center}.algo-icon{font-size:24px;color:var(--primary-color);margin-bottom:8px}.algo-name{font-weight:600;font-size:0.85rem}.algo-desc{font-size:0.7rem;color:var(--gray-500)}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-top:20px}.knowledge-card{background:var(--gray-50);border-radius:16px;padding:20px;text-align:center}.knowledge-card i{font-size:28px;color:var(--primary-color);margin-bottom:12px}.knowledge-card h4{font-size:0.85rem;margin-bottom:8px}.knowledge-card p{font-size:0.75rem;color:var(--gray-500);line-height:1.5}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.stats-grid{grid-template-columns:repeat(2, 1fr)}.options-grid{grid-template-columns:1fr}.editor-container{grid-template-columns:1fr}.preview-grid{grid-template-columns:1fr}.algorithm-grid{grid-template-columns:repeat(2, 1fr)}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.panel-header{flex-direction:column;align-items:flex-start}.algorithm-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:1fr}}