.periodic-block[data-astro-cid-vl6srquk]{min-height:260px;padding:1.25rem .75rem;border-right:1px solid rgb(231 229 228);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.periodic-block[data-astro-cid-vl6srquk]:last-child{border-right:0}.periodic-block-s[data-astro-cid-vl6srquk]{background:#f8fafc}.periodic-block-p[data-astro-cid-vl6srquk]{background:#f5f7ed}.periodic-block-d[data-astro-cid-vl6srquk]{background:#fff7ed}.periodic-block-f[data-astro-cid-vl6srquk]{background:#f7f3ff}.orbital-sketch[data-astro-cid-vl6srquk]{position:relative;width:76px;height:76px;border:1px solid rgb(214 211 209);border-radius:999px;background:#fff}.orbital-sketch[data-astro-cid-vl6srquk] span[data-astro-cid-vl6srquk]{position:absolute;width:10px;height:10px;border-radius:999px;background:#1f4e79;left:calc(50% - 5px);top:calc(50% - 5px);transform:rotate(calc((360deg / var(--n)) * var(--i))) translateY(-27px)}.polygon-grid[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.polygon-card[data-astro-cid-vl6srquk]{border:1px solid rgb(231 229 228);border-radius:.5rem;background:#fff;padding:1.2rem;display:grid;grid-template-columns:minmax(12.5rem,1.12fr) minmax(0,.88fr);gap:1rem;align-items:center}.polygon-card[data-astro-cid-vl6srquk] svg[data-astro-cid-vl6srquk]{width:100%;max-width:15.25rem;aspect-ratio:1;display:block;justify-self:center}.polygon-card[data-astro-cid-vl6srquk] h3[data-astro-cid-vl6srquk]{margin:0 0 .35rem;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:1.12rem;font-weight:800;color:#1c1917}.polygon-card[data-astro-cid-vl6srquk] p[data-astro-cid-vl6srquk]{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.92rem;line-height:1.35;color:#57534e}.polygon-face[data-astro-cid-vl6srquk]{fill:#1f4e7914;stroke:#a8a29e;stroke-width:2}.orbital-ring[data-astro-cid-vl6srquk]{fill:none;stroke:#d6d3d1;stroke-width:1.6;stroke-dasharray:4 5}.polygon-axis[data-astro-cid-vl6srquk]{stroke:#a8a29e;stroke-width:2;stroke-linecap:round}.polygon-node[data-astro-cid-vl6srquk]{fill:#fff;stroke:#1f4e79;stroke-width:2.5}.polygon-card-p[data-astro-cid-vl6srquk] .polygon-node[data-astro-cid-vl6srquk],.polygon-card-p[data-astro-cid-vl6srquk] .spin-dot-filled[data-astro-cid-vl6srquk]{stroke:#2d7a3a}.polygon-card-d[data-astro-cid-vl6srquk] .polygon-node[data-astro-cid-vl6srquk],.polygon-card-d[data-astro-cid-vl6srquk] .spin-dot-filled[data-astro-cid-vl6srquk]{stroke:#d6791e}.polygon-card-f[data-astro-cid-vl6srquk] .polygon-node[data-astro-cid-vl6srquk],.polygon-card-f[data-astro-cid-vl6srquk] .spin-dot-filled[data-astro-cid-vl6srquk]{stroke:#6b4ca0}.spin-dot[data-astro-cid-vl6srquk]{fill:#fff;stroke:currentColor;stroke-width:1.5;color:#78716c}.spin-dot-a[data-astro-cid-vl6srquk]{fill:#fafaf9}.spin-dot-b[data-astro-cid-vl6srquk],.spin-dot-filled[data-astro-cid-vl6srquk]{fill:currentColor}.polygon-card-s[data-astro-cid-vl6srquk]{border-color:#1f4e7947}.polygon-card-p[data-astro-cid-vl6srquk]{border-color:#2d7a3a47}.polygon-card-d[data-astro-cid-vl6srquk]{border-color:#d6791e52}.polygon-card-f[data-astro-cid-vl6srquk]{border-color:#6b4ca052}.polygon-card-s[data-astro-cid-vl6srquk] svg[data-astro-cid-vl6srquk]{color:#1f4e79}.polygon-card-p[data-astro-cid-vl6srquk] svg[data-astro-cid-vl6srquk]{color:#2d7a3a}.polygon-card-d[data-astro-cid-vl6srquk] svg[data-astro-cid-vl6srquk]{color:#d6791e}.polygon-card-f[data-astro-cid-vl6srquk] svg[data-astro-cid-vl6srquk]{color:#6b4ca0}.polygon-stability[data-astro-cid-vl6srquk]{margin-top:1rem;display:grid;grid-template-columns:minmax(0,1fr) 30rem;gap:1.5rem;align-items:center;border:1px solid rgb(214 211 209);border-radius:.5rem;background:#fafaf9;padding:1rem}.polygon-stability[data-astro-cid-vl6srquk] h3[data-astro-cid-vl6srquk]{margin:0 0 .5rem;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:1.05rem;font-weight:800;color:#1f4e79}.polygon-stability[data-astro-cid-vl6srquk] p[data-astro-cid-vl6srquk]{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.9rem;line-height:1.55;color:#44403c}.pentagon-states[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.pentagon-states[data-astro-cid-vl6srquk] figure[data-astro-cid-vl6srquk]{margin:0;border:1px solid rgb(231 229 228);border-radius:.45rem;background:#fff;padding:1rem;text-align:center}.pentagon-states[data-astro-cid-vl6srquk] svg[data-astro-cid-vl6srquk]{width:100%;max-width:13.5rem;display:block;margin:0 auto;color:#d6791e}.pentagon-states[data-astro-cid-vl6srquk] figcaption[data-astro-cid-vl6srquk]{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:800;color:#1c1917}.period-row[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:4rem minmax(0,1fr) 7rem;align-items:center;gap:.75rem}.period-track[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:repeat(var(--cells),minmax(4px,1fr));gap:2px;min-height:28px}.period-cell[data-astro-cid-vl6srquk]{min-width:4px;border-radius:2px}.period-cell-s[data-astro-cid-vl6srquk]{background:#1f4e79}.period-cell-d[data-astro-cid-vl6srquk]{background:#d6791e}.period-cell-f[data-astro-cid-vl6srquk]{background:#6b4ca0}.period-cell-p[data-astro-cid-vl6srquk]{background:#2d7a3a}.period-legend[data-astro-cid-vl6srquk]{display:flex;flex-wrap:wrap;gap:.75rem 1rem;padding-top:.75rem;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.8125rem;color:#57534e}.period-legend-item[data-astro-cid-vl6srquk]{display:inline-flex;align-items:center;gap:.4rem;white-space:nowrap}.period-legend-swatch[data-astro-cid-vl6srquk]{width:.95rem;height:.95rem;border-radius:3px;border:1px solid rgb(214 211 209)}.period-shell-note[data-astro-cid-vl6srquk]{margin-top:1rem;border:1px solid rgb(214 211 209);border-radius:.5rem;background:#fff;padding:1rem;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.875rem;line-height:1.55;color:#44403c}.period-shell-note[data-astro-cid-vl6srquk] h3[data-astro-cid-vl6srquk]{margin:0 0 .5rem;color:#1f4e79;font-weight:700;font-size:1rem}.period-shell-note[data-astro-cid-vl6srquk] p[data-astro-cid-vl6srquk]{margin:.65rem 0 0}.period-shell-note[data-astro-cid-vl6srquk] p[data-astro-cid-vl6srquk]:first-of-type{margin-top:0}.shell-ladder[data-astro-cid-vl6srquk]{display:grid;gap:.85rem}.shell-row[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:6.5rem minmax(0,1fr) 6.5rem;gap:.75rem;align-items:center;border:1px solid rgb(231 229 228);border-radius:.5rem;background:#fff;padding:1rem}.shell-row[data-astro-cid-vl6srquk] p[data-astro-cid-vl6srquk]{grid-column:2 / 4;margin:0;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.85rem;color:#57534e;line-height:1.45}.shell-period[data-astro-cid-vl6srquk],.shell-length[data-astro-cid-vl6srquk]{font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.85rem;color:#57534e}.shell-length[data-astro-cid-vl6srquk]{text-align:right}.shell-sequence[data-astro-cid-vl6srquk]{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem}.shell-token[data-astro-cid-vl6srquk]{display:inline-flex;min-width:3.25rem;justify-content:center;border-radius:.35rem;padding:.35rem .55rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9rem;font-weight:700;color:#fff}.shell-token-s[data-astro-cid-vl6srquk]{background:#1f4e79}.shell-token-p[data-astro-cid-vl6srquk]{background:#2d7a3a}.shell-token-d[data-astro-cid-vl6srquk]{background:#d6791e}.shell-token-f[data-astro-cid-vl6srquk]{background:#6b4ca0}.periodic-calculator[data-astro-cid-vl6srquk]{border:1px solid rgb(214 211 209);border-radius:.5rem;background:#fff;padding:1.25rem;display:grid;gap:1.25rem}.calculator-controls[data-astro-cid-vl6srquk]{display:grid;gap:.65rem;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif}.calculator-controls[data-astro-cid-vl6srquk] label[data-astro-cid-vl6srquk]{font-size:.85rem;font-weight:700;color:#1f4e79}.calculator-controls[data-astro-cid-vl6srquk] input[data-astro-cid-vl6srquk]{width:min(12rem,100%);border:1px solid rgb(168 162 158);border-radius:.35rem;padding:.55rem .7rem;font-size:1rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.calculator-presets[data-astro-cid-vl6srquk]{display:flex;flex-wrap:wrap;gap:.4rem}.calculator-presets[data-astro-cid-vl6srquk] button[data-astro-cid-vl6srquk]{border:1px solid rgb(214 211 209);border-radius:.35rem;background:#fafaf9;padding:.35rem .55rem;font-size:.8rem;color:#44403c}.calculator-presets[data-astro-cid-vl6srquk] button[data-astro-cid-vl6srquk]:hover{border-color:#1f4e79;color:#1f4e79}.calculator-output[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:8rem minmax(0,1fr);gap:1rem;align-items:stretch}.element-tile[data-astro-cid-vl6srquk]{border-radius:.5rem;background:#1f4e79;color:#fff;padding:1rem;min-height:8rem;display:flex;flex-direction:column;justify-content:center;text-align:center}.periodic-calculator[data-astro-cid-vl6srquk][data-current-block=p] .element-tile[data-astro-cid-vl6srquk]{background:#2d7a3a}.periodic-calculator[data-astro-cid-vl6srquk][data-current-block=d] .element-tile[data-astro-cid-vl6srquk]{background:#d6791e}.periodic-calculator[data-astro-cid-vl6srquk][data-current-block=f] .element-tile[data-astro-cid-vl6srquk]{background:#6b4ca0}.element-symbol[data-astro-cid-vl6srquk]{font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:3rem;font-weight:800;line-height:1}.element-z[data-astro-cid-vl6srquk]{margin-top:.4rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9rem;opacity:.85}.calculator-output[data-astro-cid-vl6srquk] dl[data-astro-cid-vl6srquk]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;margin:0}.calculator-output[data-astro-cid-vl6srquk] dl[data-astro-cid-vl6srquk] div[data-astro-cid-vl6srquk]{border:1px solid rgb(231 229 228);border-radius:.4rem;padding:.65rem;background:#fafaf9}.calculator-output[data-astro-cid-vl6srquk] dt[data-astro-cid-vl6srquk]{font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.72rem;text-transform:uppercase;letter-spacing:.04em;color:#78716c}.calculator-output[data-astro-cid-vl6srquk] dd[data-astro-cid-vl6srquk]{margin:.2rem 0 0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1rem;font-weight:700;color:#1c1917}.source-details[data-astro-cid-vl6srquk]{border:1px solid rgb(231 229 228);border-radius:.5rem;background:#fafaf9;overflow:hidden}.source-details[data-astro-cid-vl6srquk] summary[data-astro-cid-vl6srquk]{cursor:pointer;padding:.85rem 1rem;font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;font-size:.9rem;font-weight:700;color:#1f4e79;-webkit-user-select:none;-moz-user-select:none;user-select:none}.source-details[data-astro-cid-vl6srquk] summary[data-astro-cid-vl6srquk]:hover{background:#f5f5f4}.source-code[data-astro-cid-vl6srquk]{margin:0;border-radius:0;max-height:42rem;overflow:auto;background:#1c1917;color:#f5f5f4;font-size:.78rem;line-height:1.55;-moz-tab-size:2;-o-tab-size:2;tab-size:2}@media(max-width:720px){.periodic-block[data-astro-cid-vl6srquk]{min-height:210px;padding:1rem .35rem}.orbital-sketch[data-astro-cid-vl6srquk]{width:58px;height:58px}.orbital-sketch[data-astro-cid-vl6srquk] span[data-astro-cid-vl6srquk]{transform:rotate(calc((360deg / var(--n)) * var(--i))) translateY(-20px)}.period-row[data-astro-cid-vl6srquk]{grid-template-columns:3rem minmax(0,1fr)}.period-row[data-astro-cid-vl6srquk]>[data-astro-cid-vl6srquk]:last-child{grid-column:2;text-align:left}.polygon-grid[data-astro-cid-vl6srquk],.polygon-stability[data-astro-cid-vl6srquk]{grid-template-columns:1fr}.polygon-card[data-astro-cid-vl6srquk]{grid-template-columns:10.5rem minmax(0,1fr);gap:.75rem;align-items:center}.polygon-card[data-astro-cid-vl6srquk] h3[data-astro-cid-vl6srquk]{margin-top:0}.pentagon-states[data-astro-cid-vl6srquk]{max-width:20rem}.shell-row[data-astro-cid-vl6srquk],.calculator-output[data-astro-cid-vl6srquk]{grid-template-columns:1fr}.shell-row[data-astro-cid-vl6srquk] p[data-astro-cid-vl6srquk]{grid-column:1}.shell-length[data-astro-cid-vl6srquk]{text-align:left}.calculator-output[data-astro-cid-vl6srquk] dl[data-astro-cid-vl6srquk]{grid-template-columns:1fr}}