.alg-wrap{max-width:980px;margin:0 auto;padding:36px 20px 64px}.alg-hero h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin-bottom:6px}.alg-hero p{font-size:14px;color:var(--text-muted);font-family:var(--font-mono);font-weight:500;margin-bottom:28px}.alg-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}.alg-tab{font-family:var(--font-mono);font-size:12px;font-weight:800;padding:8px 18px;border-radius:99px;border:1.5px solid var(--border2);background:var(--surface2);color:var(--text-muted);cursor:pointer;transition:all .15s}.alg-tab.active,.alg-tab:hover{background:#ede9fe;border-color:#818cf8;color:#4f46e5}.alg-panel{display:none}.alg-panel.active{display:block}.plotter-layout{display:grid;grid-template-columns:260px 1fr;gap:18px;align-items:start}@media (max-width: 720px){.plotter-layout{grid-template-columns:1fr}}.ctrl-box{background:var(--surface);border:1.5px solid var(--border2);border-radius:16px;padding:20px;box-shadow:var(--shadow-sm)}.eq-display-box{background:#ede9fe;border-radius:12px;padding:12px 16px;text-align:center;margin-bottom:16px}.eq-display-text{font-size:21px;font-weight:900;font-family:var(--font-mono);color:#4f46e5}.ctrl-lbl{font-size:10px;font-family:var(--font-mono);font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--text-dim);margin-bottom:5px;display:block}.ctrl-row{margin-bottom:16px}.ctrl-slider{width:100%;accent-color:var(--accent);cursor:pointer;height:6px}.ctrl-val{font-size:20px;font-weight:900;font-family:var(--font-mono);color:var(--accent);text-align:center;display:block;margin-top:3px}.ctrl-val.green{color:#10b981}.ctrl-slider.green{accent-color:#10b981}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:14px}.info-cell{background:var(--surface2);border-radius:10px;padding:9px 11px}.info-key{font-size:9px;font-family:var(--font-mono);color:var(--text-dim);font-weight:800;letter-spacing:.4px;margin-bottom:3px}.info-val{font-size:13px;font-weight:800;font-family:var(--font-mono)}.l2-toggle{display:flex;align-items:center;gap:10px;margin:14px 0 10px}.l2-toggle label{font-size:12px;font-weight:700;color:var(--text-muted);cursor:pointer}.tgl{width:38px;height:20px;background:var(--surface3);border-radius:99px;position:relative;cursor:pointer;transition:background .15s;border:1.5px solid var(--border2);flex-shrink:0}.tgl.on{background:var(--accent);border-color:var(--accent)}.tgl-knob{width:14px;height:14px;background:#fff;border-radius:50%;position:absolute;top:2px;left:2px;transition:left .15s;box-shadow:0 1px 3px #0003}.tgl.on .tgl-knob{left:20px}.l2-ctrl{display:none}.l2-ctrl.show{display:block}.lbl-green{color:#10b981}.alg-canvas{background:var(--surface);border:1.5px solid var(--border2);border-radius:16px;display:block;box-shadow:var(--shadow-sm);width:100%;cursor:crosshair}.solver-section{max-width:600px}.solver-h{font-size:16px;font-weight:800;margin-bottom:6px}.solver-sub{font-size:13px;color:var(--text-muted);font-weight:600;margin-bottom:20px;line-height:1.6}.eq-form{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px}.eq-coef{width:66px;height:50px;font-size:20px;font-weight:800;font-family:var(--font-mono);text-align:center;border:1.5px solid var(--border2);border-radius:10px;background:var(--surface2);color:var(--text);outline:none;transition:border-color .15s}.eq-coef:focus{border-color:var(--accent)}.eq-sym{font-size:22px;font-weight:800;color:var(--text-muted)}.eq-xsym{font-size:22px;font-weight:900;color:var(--accent);font-family:var(--font-mono)}.solve-btn{font-family:var(--font-mono);font-size:13px;font-weight:800;padding:10px 22px;background:var(--accent);color:#fff;border:none;border-radius:99px;cursor:pointer;transition:opacity .15s}.solve-btn:hover{opacity:.85}.sol-box{background:var(--surface);border:1.5px solid var(--border2);border-radius:16px;padding:22px}.sol-eq{font-size:18px;font-weight:900;font-family:var(--font-mono);color:var(--accent);margin-bottom:14px}.sol-step{font-size:13px;font-weight:600;color:var(--text);font-family:var(--font-mono);background:var(--surface2);border-radius:8px;padding:8px 12px;margin-bottom:6px;border-left:3px solid var(--accent);line-height:1.6}.sol-step.success{border-left-color:#10b981;background:#d1fae5}