:root{--bg-color:#030712;--card-bg:#0b0f19;--card-border:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--cyan:#00f0ff;--yellow:gold;--orange:#f97316;--green:#10b981;--red:#ef4444;--font-sans:"Inter", system-ui, -apple-system, sans-serif;--font-mono:"JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-sans);flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}.app-header{border-bottom:1px solid var(--card-border);background-color:#050811;padding:1.25rem 2rem}.header-container h1{background:linear-gradient(135deg,#38bdf8,#a855f7);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.25rem;font-size:1.5rem;font-weight:700}.header-container .subtitle{color:var(--text-secondary);font-size:.875rem}.app-grid{flex:1;grid-template-columns:repeat(2,1fr);gap:1.25rem;width:100%;max-width:1300px;margin:0 auto;padding:1.5rem;display:grid}.card{background-color:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;flex-direction:column;padding:1.25rem;display:flex;overflow:hidden;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a}.card-header-flex{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:1rem;display:flex}.card-header-flex .card-title{margin-bottom:0}.scope-timebase-toolbar{border:1px solid var(--card-border);background-color:#121824;border-radius:6px;align-items:center;gap:.35rem;padding:.2rem .5rem;display:flex}.tb-label{font-family:var(--font-sans);color:var(--text-secondary);margin-right:.15rem;font-size:.75rem;font-weight:600}.tb-readout{font-family:var(--font-mono);color:var(--cyan);text-align:center;background-color:#050c1a;border:1px solid #00f0ff33;border-radius:4px;min-width:75px;padding:.15rem .4rem;font-size:.8rem;font-weight:700}.btn-tb{font-family:var(--font-sans);color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none;background:#1e293b;border:1px solid #ffffff14;border-radius:4px;padding:.15rem .45rem;font-size:.75rem;font-weight:700;transition:all .15s}.btn-tb:hover{color:var(--text-primary);background:#334155}.btn-tb.active{color:var(--cyan);background:#00f0ff26;border-color:#00f0ff66}.full-width{grid-column:span 2}.canvas-container{flex:1;justify-content:center;align-items:center;min-height:260px;display:flex;position:relative}.canvas-container canvas{background-color:#030712;border-radius:8px;display:block}.info-content{flex-direction:column;justify-content:space-between;gap:1.25rem;height:100%;display:flex}.metrics-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;display:grid}.metric{border:1px solid var(--card-border);background-color:#121824;border-radius:8px;flex-direction:column;gap:.25rem;padding:.75rem;display:flex}.metric-label{color:var(--text-secondary);font-size:.75rem;font-weight:500}.metric-value{font-family:var(--font-mono);color:var(--text-primary);font-size:1.125rem;font-weight:700}.mode-metric{flex-direction:row;justify-content:space-between;align-items:center;padding:.85rem 1rem}.mode-badge{font-family:var(--font-sans);border-radius:100px;padding:.25rem .75rem;font-size:.875rem;font-weight:600}.mode-ideal{color:var(--green);background-color:#10b98126;border:1px solid #10b9814d}.mode-underdamped{color:var(--cyan);background-color:#00f0ff1a;border:1px solid #00f0ff4d}.mode-critically-damped{color:var(--orange);background-color:#f9731626;border:1px solid #f973164d}.mode-overdamped{color:var(--red);background-color:#ef444426;border:1px solid #ef44444d}.phase-card{border:1px solid var(--card-border);background-color:#121824;border-radius:8px;flex-direction:column;flex:1;justify-content:center;gap:.5rem;min-height:100px;padding:1rem;display:flex}.phase-header{align-items:center;gap:.5rem;display:flex}.phase-icon{font-size:1.25rem}.phase-title{color:var(--text-primary);font-size:.95rem;font-weight:700}.phase-description{color:var(--text-secondary);font-size:.85rem;line-height:1.4}.controls-container{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:2rem;display:flex}.sliders-grid{flex:1;grid-template-columns:repeat(3,1fr);gap:1.5rem;min-width:500px;display:grid}.slider-group{flex-direction:column;gap:.5rem;display:flex}.slider-header{justify-content:space-between;align-items:center;display:flex}.slider-header label{color:var(--text-secondary);font-size:.85rem;font-weight:600}.slider-readout{font-family:var(--font-mono);color:var(--text-primary);border:1px solid var(--card-border);background-color:#121824;border-radius:4px;padding:.15rem .4rem;font-size:.85rem;font-weight:700}.input-with-unit{align-items:center;gap:.25rem;display:flex}.slider-readout-input{font-family:var(--font-mono);color:var(--text-primary);border:1px solid var(--card-border);text-align:right;background-color:#121824;border-radius:4px;outline:none;width:60px;padding:.15rem .3rem;font-size:.85rem;font-weight:700}.slider-readout-input:focus{border-color:var(--cyan);box-shadow:0 0 5px #00f0ff66}.unit-label{font-family:var(--font-mono);color:var(--text-secondary);font-size:.85rem;font-weight:700}input[type=range]{-webkit-appearance:none;cursor:pointer;background:#1e293b;border-radius:3px;outline:none;width:100%;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--cyan);cursor:pointer;border-radius:50%;width:16px;height:16px;transition:transform .1s;box-shadow:0 0 10px #00f0ff80}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}.buttons-group{gap:.75rem;display:flex}.btn{font-family:var(--font-sans);cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;min-width:100px;padding:.75rem 1.5rem;font-size:.9rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{color:#fff;background-color:#0284c7;box-shadow:0 2px 4px #0284c733}.btn-primary:hover{background-color:#0369a1;box-shadow:0 0 12px #0369a166}.btn-primary.paused{background-color:var(--green)}.btn-primary.paused:hover{background-color:#059669;box-shadow:0 0 12px #05966966}.btn-secondary{color:var(--text-primary);border:1px solid var(--card-border);background-color:#334155}.btn-secondary:hover{color:#fff;background-color:#475569}#narrow-warning{z-index:9999;background-color:#030712;justify-content:center;align-items:center;width:100vw;height:100vh;padding:2rem;display:none;position:fixed;top:0;left:0}.warning-box{background-color:var(--card-bg);border:1px solid var(--card-border);text-align:center;border-radius:12px;max-width:500px;padding:2.5rem;box-shadow:0 10px 15px -3px #00000080}.warning-box h2{color:var(--yellow);margin-bottom:1rem;font-size:1.5rem}.warning-box p{color:var(--text-secondary);font-size:.95rem;line-height:1.6}@media (width<=1023px){.app-grid{display:none}#narrow-warning{display:flex}}