:root{color-scheme:light;--paper:#f5f3ed;--ink:#192d33;--muted:#4d646a;--line:#ced8d6;--accent:#146c5c;--card:#fff;--tint:#e5efeb;font-family:Arial,Helvetica,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);line-height:1.7}a{color:#125d50;text-underline-offset:.2em}a:hover{color:#092f29}button,input,select,textarea{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b45309;outline-offset:4px}.skip{position:absolute;left:12px;top:-100px;background:white;padding:12px;z-index:20}.skip:focus{top:12px}.shell{max-width:1200px;margin:auto;padding:0 32px}.masthead{border-bottom:1px solid var(--line);padding:24px 0}.masthead .shell{display:flex;justify-content:space-between;gap:18px;align-items:center}.wordmark{font-weight:800;letter-spacing:.1em;text-decoration:none;font-size:.8rem}.masthead nav{display:flex;gap:24px;font-size:.85rem}.hero{padding:64px 0 38px;max-width:960px}.eyebrow{text-transform:uppercase;font-size:.72rem;letter-spacing:.17em;font-weight:700;color:var(--accent);display:block}.hero h1{font-family:Georgia,serif;font-size:clamp(2.25rem,5vw,4.5rem);font-weight:400;line-height:1.08;letter-spacing:-.035em;margin:18px 0 24px;max-width:920px}.dek{font-size:1.18rem;max-width:770px;color:var(--muted)}.meta{font-size:.78rem;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap}.toolbox{border:1px solid var(--line);border-top:5px solid var(--accent);padding:32px;background:white;border-radius:4px;margin:0 0 48px}.toolbox h2{font-size:1.75rem;margin:8px 0}.toolbox .instructions{font-size:.9rem;color:var(--muted);max-width:900px}.toolbox form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:26px 0}.toolbox label{display:block;font-size:.85rem;font-weight:700;min-width:0}.toolbox label input,.toolbox label select,.toolbox label textarea{display:block;width:100%;margin:6px 0 0}.toolbox input,.toolbox select,.toolbox textarea{border:1px solid #8caaa4;background:#fbfdfc;color:var(--ink);border-radius:3px;padding:10px;min-width:0;max-width:100%}.toolbox button,.button{display:inline-block;padding:11px 20px;background:var(--accent);color:white;border:1px solid var(--accent);border-radius:3px;text-decoration:none;font-weight:700;font-size:.88rem}.toolbox button:hover,.button:hover{background:#0c4c40;color:white}.toolbox output,.toolbox [role=status],.toolbox [aria-live]{display:block;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--tint);padding:20px;border-radius:3px;font-size:.95rem}.toolbox .error,[role=alert]{color:#9b2920}.toolbox fieldset{min-width:0;grid-column:1/-1;border:1px solid var(--line);padding:16px}.toolbox .actions{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap}.toolbox .wide{grid-column:1/-1}.reading-grid{display:grid;grid-template-columns:230px minmax(0,1fr);gap:64px;align-items:start}.contents{font-size:.85rem;border-top:1px solid var(--line);padding-top:20px;position:sticky;top:20px}.contents ol{padding-left:20px;line-height:1.5}.contents li{margin:13px 0}.article{min-width:0;max-width:800px}.article section{scroll-margin-top:24px;margin:0 0 48px}.article h2{font-family:Georgia,serif;font-size:2rem;line-height:1.2;font-weight:400;margin:0 0 20px}.article p{margin:0 0 20px}.article li{margin:8px 0}.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line)}table{border-collapse:collapse;width:100%;font-size:.86rem}th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--tint);font-weight:700}tr:last-child td{border-bottom:0}.source-note{font-size:.8rem;color:var(--muted)}.example{padding:22px;border-left:3px solid var(--accent);background:#fff;margin:20px 0}.example h3{font-size:1rem;margin:0 0 12px}.example dl{display:grid;grid-template-columns:minmax(100px,.9fr) 1.6fr;gap:6px 18px;margin:10px 0;font-size:.85rem}.example dt{color:var(--muted);overflow-wrap:anywhere}.example dd{margin:0;overflow-wrap:anywhere}code{font-size:.82rem;overflow-wrap:anywhere}.sources li{padding:0 0 16px}.sources small{display:block;color:var(--muted);line-height:1.5}.offer{margin:48px 0;background:var(--ink);color:#fff;padding:32px}.offer h2{font-size:1.75rem}.offer p{color:#d6e4df}.offer .button{background:#d4f2dc;color:#102b23;border-color:#d4f2dc}.footer{border-top:1px solid var(--line);margin-top:40px;padding:28px 0 48px;font-size:.8rem;color:var(--muted)}details{border-top:1px solid var(--line);padding:16px 0}summary{font-weight:700;cursor:pointer}details p{margin-top:14px!important}.method-note{border-top:1px solid var(--line);padding-top:20px;font-size:.85rem;color:var(--muted)}.no-js{background:#fff3d9;padding:16px}.data-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:800px){.shell{padding:0 20px}.hero{padding:38px 0 26px}.reading-grid{grid-template-columns:1fr;gap:32px}.contents{position:static}.contents ol{columns:2;column-gap:28px}.toolbox{padding:22px}.toolbox form{grid-template-columns:1fr 1fr}.masthead .shell{align-items:flex-start}.masthead nav{gap:14px}.article h2{font-size:1.65rem}}@media(max-width:480px){.masthead .shell{display:block}.masthead nav{margin-top:12px}.toolbox form{grid-template-columns:1fr}.contents ol{columns:1}.toolbox{padding:18px}.example{padding:16px}.example dl{grid-template-columns:1fr}.example dd{margin-bottom:8px}.hero h1{font-size:2.5rem}.data-pair{grid-template-columns:1fr}.offer{padding:24px}}

.tool-field{min-width:0}.tool-field input{width:100%}.toolbox fieldset{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.toolbox fieldset>p,.toolbox fieldset>label,.toolbox fieldset>select{grid-column:1/-1}.toolbox fieldset>p{font-size:.85rem;color:var(--muted);margin:0}.toolbox legend{font-size:.8rem;color:var(--muted);padding:0 8px}.tool-error{grid-column:1/-1}.tool-output:empty{display:none}.tool-output p{margin:0 0 8px}.tool-output p:last-child{margin:0}.toolbox form>button{align-self:start}.toolbox fieldset:has(.tool-field:only-child){grid-template-columns:1fr}@media(max-width:800px){.toolbox fieldset{grid-template-columns:1fr 1fr}}@media(max-width:480px){.toolbox fieldset{grid-template-columns:1fr}}