.tool-main[data-astro-cid-6uo6stcw]{padding-top:16px;padding-bottom:64px}.crumbs[data-astro-cid-6uo6stcw]{color:var(--muted);margin-bottom:16px;font-size:13px}.crumbs[data-astro-cid-6uo6stcw] a[data-astro-cid-6uo6stcw]{color:var(--muted);text-decoration:none}.crumbs[data-astro-cid-6uo6stcw] a[data-astro-cid-6uo6stcw]:hover{color:var(--text)}.tool-heading[data-astro-cid-6uo6stcw]{align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}.tool-heading-icon[data-astro-cid-6uo6stcw]{background:var(--brand-soft);width:48px;height:48px;color:var(--brand);border-radius:12px;flex-shrink:0;place-items:center;display:grid}.tool-heading[data-astro-cid-6uo6stcw] h1[data-astro-cid-6uo6stcw]{color:var(--text);margin:0 0 4px;font-size:24px}.tool-heading[data-astro-cid-6uo6stcw] p[data-astro-cid-6uo6stcw]{color:var(--muted);margin:0;font-size:14px}.eq-tabs[data-astro-cid-6uo6stcw]{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px;display:grid}.eq-tab[data-astro-cid-6uo6stcw]{background:var(--surface);border:1px solid var(--border);text-align:left;cursor:pointer;border-radius:10px;flex-direction:column;gap:2px;padding:12px 16px;transition:all .15s;display:flex}.eq-tab[data-astro-cid-6uo6stcw]:hover{border-color:var(--brand)}.eq-tab[data-astro-cid-6uo6stcw].active{background:var(--brand-soft);border-color:var(--brand)}.tab-title[data-astro-cid-6uo6stcw]{color:var(--text);font-size:14px;font-weight:700}.eq-tab[data-astro-cid-6uo6stcw].active .tab-title[data-astro-cid-6uo6stcw]{color:var(--brand)}.tab-sub[data-astro-cid-6uo6stcw]{color:var(--muted);font-size:12px;font-family:var(--font-mono,monospace)}.eq-presets-row[data-astro-cid-6uo6stcw]{align-items:center;gap:10px;margin-bottom:20px;padding-bottom:4px;display:flex;overflow-x:auto}.presets-label[data-astro-cid-6uo6stcw]{color:var(--muted);white-space:nowrap;font-size:12px;font-weight:600}.preset-buttons[data-astro-cid-6uo6stcw]{flex-wrap:nowrap;gap:8px;display:flex}.preset-btn{background:var(--surface);border:1px solid var(--border);font-size:12px;font-family:var(--font-mono,monospace);color:var(--text);cursor:pointer;white-space:nowrap;border-radius:6px;padding:5px 10px;transition:all .15s}.preset-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}.eq-input-card[data-astro-cid-6uo6stcw]{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:20px;padding:20px}.card-eyebrow[data-astro-cid-6uo6stcw]{letter-spacing:.05em;color:var(--muted);text-transform:uppercase;margin-bottom:12px;font-size:11px;font-weight:700}.quad-inputs-row[data-astro-cid-6uo6stcw],.linear-inputs-row[data-astro-cid-6uo6stcw]{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px;display:flex}.input-coeff-group[data-astro-cid-6uo6stcw]{align-items:center;gap:8px;display:flex}.coeff-input[data-astro-cid-6uo6stcw]{background:var(--bg);border:1px solid var(--border);width:80px;font-size:18px;font-weight:700;font-family:var(--font-mono,monospace);color:var(--text);text-align:center;border-radius:8px;padding:10px 12px}.coeff-input[data-astro-cid-6uo6stcw]:focus{border-color:var(--brand);outline:none}.coeff-var[data-astro-cid-6uo6stcw]{font-size:18px;font-weight:600;font-family:var(--font-mono,monospace);color:var(--text)}.current-equation-preview[data-astro-cid-6uo6stcw]{font-size:16px;font-family:var(--font-mono,monospace);color:var(--brand);background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:8px 14px;display:inline-block}.system-inputs-wrapper[data-astro-cid-6uo6stcw]{flex-direction:column;gap:12px;display:flex}.system-row[data-astro-cid-6uo6stcw]{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.eq-brace[data-astro-cid-6uo6stcw]{color:var(--muted);min-width:40px;font-size:13px;font-weight:700}.quad-results-grid[data-astro-cid-6uo6stcw]{grid-template-columns:1.1fr .9fr;gap:20px;margin-bottom:20px;display:grid}.linear-results-grid[data-astro-cid-6uo6stcw]{grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px;display:grid}.eq-result-card[data-astro-cid-6uo6stcw]{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px}.roots-display[data-astro-cid-6uo6stcw]{flex-wrap:wrap;gap:14px;margin-bottom:12px;display:flex}.root-badge[data-astro-cid-6uo6stcw]{background:var(--bg);border:1px solid var(--border);border-radius:8px;align-items:baseline;gap:8px;padding:10px 16px;display:flex}.root-lbl[data-astro-cid-6uo6stcw]{color:var(--muted);font-size:14px;font-weight:600}.root-val[data-astro-cid-6uo6stcw]{font-size:24px;font-weight:800;font-family:var(--font-mono,monospace);color:var(--text)}.primary-badge[data-astro-cid-6uo6stcw] .root-val[data-astro-cid-6uo6stcw]{color:var(--brand)}.nature-pill[data-astro-cid-6uo6stcw]{border-radius:999px;margin-bottom:18px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-block}.pill-green[data-astro-cid-6uo6stcw]{color:#10b981;background:#10b9811f}.pill-blue[data-astro-cid-6uo6stcw]{background:var(--brand-soft);color:var(--brand)}.pill-purple[data-astro-cid-6uo6stcw]{color:#a855f7;background:#a855f71f}.properties-list[data-astro-cid-6uo6stcw]{border-top:1px solid var(--border);flex-direction:column;gap:8px;padding-top:14px;display:flex}.prop-item[data-astro-cid-6uo6stcw]{justify-content:space-between;align-items:center;font-size:13px;display:flex}.prop-k[data-astro-cid-6uo6stcw]{color:var(--muted)}.prop-v[data-astro-cid-6uo6stcw]{font-family:var(--font-mono,monospace);color:var(--text);font-weight:600}.graph-card-header[data-astro-cid-6uo6stcw]{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.graph-subtitle[data-astro-cid-6uo6stcw]{font-size:11px;font-family:var(--font-mono,monospace);color:var(--muted)}.svg-container[data-astro-cid-6uo6stcw]{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px}.graph-svg[data-astro-cid-6uo6stcw]{width:100%;height:auto;display:block}.number-line-svg-wrap[data-astro-cid-6uo6stcw]{background:var(--bg);border:1px solid var(--border);border-radius:8px;margin-top:10px;padding:10px}.numline-svg[data-astro-cid-6uo6stcw]{width:100%;height:80px;display:block}.eq-steps-card[data-astro-cid-6uo6stcw]{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px}.steps-card-header[data-astro-cid-6uo6stcw]{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.copy-steps-btn[data-astro-cid-6uo6stcw]{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:6px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;transition:all .15s;display:flex}.copy-steps-btn[data-astro-cid-6uo6stcw]:hover{border-color:var(--brand);color:var(--brand)}.steps-flow[data-astro-cid-6uo6stcw]{background:var(--bg);border:1px solid var(--border);font-family:var(--font-mono,monospace);color:var(--text);border-radius:8px;flex-direction:column;gap:8px;padding:14px;font-size:13px;line-height:1.6;display:flex}.step-line[data-astro-cid-6uo6stcw]{white-space:pre-wrap}@media (width<=768px){.eq-tabs[data-astro-cid-6uo6stcw],.quad-results-grid[data-astro-cid-6uo6stcw],.linear-results-grid[data-astro-cid-6uo6stcw]{grid-template-columns:1fr}}