.arena-container{max-width:860px;margin:0 auto;padding:100px 24px 60px;position:relative;z-index:1}.arena-header{text-align:center;margin-bottom:32px}.arena-header h1{font-size:1.8rem;font-weight:800;margin-bottom:8px}.arena-header h1 span{color:var(--text)}.arena-header p{color:var(--text-dim);font-size:.9rem}.arena-tabs{display:flex;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:4px;margin-bottom:24px;overflow-x:auto}.arena-tab{padding:8px 20px;border:none;background:transparent;color:var(--text-muted);font-family:var(--sans);font-size:.8rem;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--duration-fast);white-space:nowrap}.arena-tab:hover{color:var(--text-dim)}.arena-tab.active{background:var(--text);color:var(--bg)}.gene-list{display:flex;flex-direction:column;gap:8px}.gene-card{display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:16px;padding:16px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;transition:border-color var(--duration-fast)}.gene-card:hover{border-color:var(--text-muted)}.gene-rank{display:inline-flex;align-items:center;gap:4px;font-size:.85rem;font-weight:700;color:var(--text-muted);font-family:var(--mono);justify-content:center}.gene-rank.top-3{color:var(--text-dim)}.gene-card:hover .gene-rank.top-3{color:var(--text)}.gene-rank svg{flex-shrink:0}.gene-info h3{font-size:.9rem;font-weight:600;margin-bottom:4px}.gene-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.gene-meta span{font-size:.7rem;color:var(--text-muted)}.badge{display:inline-block;font-size:.65rem;font-weight:600;padding:2px 8px;border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.03em}.badge-manual{background:var(--green-dim);color:var(--green)}.badge-llm{background:var(--yellow-dim);color:var(--yellow)}.badge-domain{font-family:var(--mono);background:var(--surface-2);color:var(--text-dim);font-weight:400;text-transform:none}.badge-fidelity{background:var(--surface-2);color:var(--text-dim)}.gene-fitness{text-align:right}.fitness-value{font-size:1.1rem;font-weight:700;font-family:var(--mono)}.fitness-label{font-size:.65rem;color:var(--text-muted);text-transform:uppercase}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.loading{text-align:center;padding:40px;color:var(--text-muted);font-size:.85rem}.detail-backdrop{display:none;position:fixed;inset:0;background:#09090bb3;backdrop-filter:blur(4px);z-index:100}.detail-backdrop.open{display:flex;align-items:center;justify-content:center;padding:24px}.detail-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-md);padding:28px;position:relative}.detail-close{position:absolute;top:16px;right:16px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-size:1rem;cursor:pointer;width:32px;height:32px;display:flex;align-items:center;justify-content:center;transition:all var(--duration-fast)}.detail-close:hover{color:var(--text);border-color:var(--text-muted)}.detail-gene-name{font-size:1.1rem;font-weight:700;margin-bottom:8px;padding-right:40px}.detail-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.detail-description{font-size:.85rem;color:var(--text-dim);line-height:1.6;margin-bottom:20px;padding:12px;background:var(--bg);border-radius:var(--radius-md);border:1px solid var(--border)}.detail-scores{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.detail-score-item{padding:12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-md);text-align:center}.detail-score-value{font-size:1.2rem;font-weight:700;font-family:var(--mono);color:var(--accent)}.detail-score-label{font-size:.65rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-top:2px}.detail-actions{display:flex;gap:10px}.detail-btn{flex:1;padding:10px 16px;border:none;border-radius:var(--radius-md);font-family:var(--sans);font-size:.8rem;font-weight:600;cursor:pointer;text-align:center;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;transition:all var(--duration-fast)}.detail-btn-primary{background:var(--text);color:var(--bg)}.detail-btn-primary:hover{background:#e4e4e7}.detail-btn-secondary{background:var(--surface-2);color:var(--text-dim);border:1px solid var(--border)}.detail-btn-secondary:hover{color:var(--text)}@media(max-width:640px){.arena-container{padding:80px 16px 40px}.arena-header h1{font-size:1.4rem}.gene-card{grid-template-columns:36px 1fr;gap:12px}.gene-fitness{grid-column:2;text-align:left}}