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.mode-btn.active{background:var(--accent-primary);color:var(--bg-deep);border-color:var(--accent-primary);font-weight:700}.mode-btn[data-mode="1"].active{background:#8b7fff}.mode-btn[data-mode="2"].active{background:#a78bfa}.mode-btn[data-mode="3"].active{background:#877ee3;color:#fff}.mode-btn[data-mode="4"].active{background:#b48cff;color:#fff}.mode-btn[data-mode="5"].active{background:#f0605c}.mode-btn[data-mode="6"].active{background:#f0b429;color:#14213d}.mode-btn[data-mode="7"].active{background:#d68ce0}.mode-btn[data-mode="8"].active{background:#4ea8de}.lab-fisica .pitch-card{background:linear-gradient(135deg,rgba(135,126,227,.15),rgba(139,127,255,.1));border:1px solid rgba(135,126,227,.3)}.lab-fisica .pitch-control{display:flex;flex-direction:column;gap:15px}.lab-fisica .pitch-display{display:flex;align-items:baseline;justify-content:center;gap:15px;padding:15px;background:rgba(0,0,0,.3);border-radius:12px}.lab-fisica .note-name{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--accent-secondary),var(--accent-primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.lab-fisica .note-freq{font-family:monospace;font-size:1.5rem;color:var(--accent-primary)}.lab-fisica .note-octave{font-size:.9rem;color:var(--text-muted)}.lab-fisica .slider-row{display:flex;align-items:center;gap:15px}.lab-fisica .slider-row input[type=range]{flex:1}.lab-fisica .slider-label-left,.lab-fisica .slider-label-right{font-size:.8rem;color:var(--text-muted);min-width:50px}.slider-label-left{text-align:right}.slider-label-right{text-align:left}.lab-fisica .pitch-presets{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center}.lab-fisica .presets-label{font-size:.8rem;color:var(--text-muted);margin-right:5px}.lab-fisica .pitch-btn{font-family:var(--font-body);font-size:.8rem;font-weight:600;padding:8px 12px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:rgba(0,0,0,.2);color:var(--text-muted);cursor:pointer;transition:all .2s ease;text-align:center;line-height:1.3}.lab-fisica .pitch-btn:hover{border-color:var(--accent-secondary);color:var(--text-primary);transform:translateY(-2px)}.lab-fisica .pitch-btn.active{background:var(--accent-secondary);color:var(--bg-deep);border-color:var(--accent-secondary)}.lab-fisica .pitch-btn small{font-family:monospace;font-size:.65rem;opacity:.8}.lab-fisica .pitch-info{background:rgba(139,127,255,.1);border-radius:10px;padding:12px 15px;font-size:.85rem;color:var(--text-muted);line-height:1.5}.lab-fisica .pitch-info strong{color:var(--accent-primary)}.lab-fisica .section-header{text-align:center;margin-bottom:25px}.lab-fisica .section-header h2{font-size:1.6rem;margin-bottom:8px}.lab-fisica .section-header p{color:var(--text-muted);font-size:.95rem}.lab-fisica .freq-axis{display:flex;justify-content:space-between;padding:5px 10px 0;font-family:monospace;font-size:.7rem;color:var(--text-muted)}.lab-fisica__nojs-notice{display:none;padding:var(--space-4,16px);color:var(--text-muted);font-size:.9rem;text-align:center}.no-js .lab-fisica__nojs-notice{display:block}.no-js .lab-fisica .section-nav,.no-js .lab-fisica-main{display:none}