:root{color-scheme:dark;--bg:#101923;--panel:#172431;--ink:#f4f3ee;--muted:#afbdc9;--line:#344553;--accent:#ff846a;--blue:#9dcee0;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.65}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}a{color:var(--blue);text-underline-offset:.25em}a:hover{color:var(--accent)}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.skip{position:absolute;top:-100px;left:1rem;background:var(--ink);color:var(--bg);padding:1rem;z-index:9}.skip:focus{top:1rem}
header,main,footer{max-width:1160px;margin:auto;padding:1.4rem 2rem}header{display:flex;justify-content:space-between;gap:1rem;align-items:center;border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:.05em;color:var(--ink);text-decoration:none;white-space:nowrap}.brand b{color:var(--accent)}nav{display:flex;flex-wrap:wrap;gap:1.5rem}nav a{font-size:.9rem;color:var(--muted);text-decoration:none}nav a[aria-current]{color:var(--accent)}.eyebrow{text-transform:uppercase;letter-spacing:.15em;font-size:.8rem;font-weight:bold;color:var(--accent);margin:0 0 1rem}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;line-height:1.12;letter-spacing:-.035em}h1{font-size:clamp(2.5rem,6vw,4.8rem);margin:.3rem 0 1.5rem;max-width:850px}h2{font-size:2rem;margin:2rem 0 1rem}h3{font-size:1.45rem;margin:.5rem 0}.intro{max-width:670px;font-size:1.15rem;color:var(--muted)}.hero{padding:3rem 0 1.5rem}.edition{display:flex;flex-wrap:wrap;gap:.8rem;font-size:.8rem;color:var(--muted)}.edition span+span:before{content:' / ';padding-right:.8rem;color:var(--line)}.grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:2rem;margin:2rem 0}.panel{border:1px solid var(--line);background:var(--panel);padding:1.7rem}.panel h2{margin-top:0}.tool-title{display:flex;gap:1rem;justify-content:space-between;align-items:baseline}.tool-title small{color:var(--accent);font-family:monospace}.fields{display:grid;grid-template-columns:1fr 1fr;gap:1rem}label{display:block;font-weight:bold;font-size:.9rem}input,select{display:block;width:100%;min-width:0;padding:.7rem;background:var(--bg);border:1px solid #667a89;border-radius:3px;color:var(--ink);margin:.4rem 0}button,.button{display:inline-block;cursor:pointer;padding:.75rem 1rem;border:1px solid var(--accent);background:var(--accent);color:#151d25;border-radius:3px;font-weight:bold;text-decoration:none}button:hover,.button:hover{background:#ffa28e;color:#151d25}.result{border-top:1px solid var(--line);margin-top:1.4rem;padding-top:1.2rem}.result strong{display:block;font-size:3.1rem;line-height:1.3;font-variant-numeric:tabular-nums}.result>span{color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.2rem 0}.metrics b{display:block;font-size:1.2rem}.metrics small{font-size:.85rem;color:var(--muted)}.note,.meta{font-size:.9rem;color:var(--muted)}.note{border-left:3px solid var(--accent);padding:.6rem 0 .6rem 1rem}.error{color:#ffb4a5}.guide-row{display:grid;grid-template-columns:2rem 1fr;gap:.7rem;padding:1.15rem 0;border-bottom:1px solid var(--line);text-decoration:none}.guide-row>span{color:var(--accent);font-size:.85rem;font-family:monospace}.guide-row h3{color:var(--ink)}.guide-row p{font-size:.9rem;color:var(--muted);margin:.4rem 0}.guide-row:hover h3{color:var(--accent)}.section-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);gap:1rem}.section-head h2{margin:0 0 1rem}.section-head small{color:var(--muted)}.article{max-width:820px;padding-top:2.5rem}.article h1{font-size:clamp(2.5rem,5vw,3.8rem)}.article h2{margin-top:2.7rem}.article p,.article li{max-width:73ch}.answer{padding:1.1rem 1.4rem;background:var(--panel);border-left:3px solid var(--accent)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{text-align:left;border-bottom:1px solid var(--line);padding:.8rem .6rem;vertical-align:top}th{color:var(--accent);font-size:.85rem}ul,ol{padding-left:1.4rem}li{margin:.6rem 0}code{color:var(--blue);overflow-wrap:anywhere}footer{margin-top:3rem;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap}footer p{max-width:580px;margin:.3rem 0}footer a{margin-right:1rem}.sources{border-top:1px solid var(--line);margin-top:2rem;padding-top:1rem;font-size:.9rem}.sources li{overflow-wrap:anywhere}.checklist label{font-size:1rem;font-weight:normal;display:flex;align-items:flex-start;gap:.75rem;padding:.6rem 0;border-bottom:1px solid var(--line)}.checklist input{width:1.2rem;height:1.2rem;flex-shrink:0}.checklist input:checked+span{color:var(--muted);text-decoration:line-through}.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:1.8rem}.related{display:flex;gap:1.5rem;flex-wrap:wrap;margin-top:2rem}
@media(max-width:760px){header,main,footer{padding:1.1rem 1.15rem}header{align-items:flex-start;flex-direction:column}nav{gap:1rem}.hero{padding-top:2rem}.grid{grid-template-columns:1fr;gap:1.5rem}.panel{padding:1.2rem}.fields{grid-template-columns:1fr}.metrics{gap:.6rem}.metrics b{font-size:1rem}.edition{font-size:.8rem}.article{padding-top:2rem}.tool-title{display:block}.section-head{align-items:flex-start}.result strong{font-size:2.8rem}footer{gap:1rem}}
@media(prefers-reduced-motion:no-preference){a,button{transition:color .15s,background .15s}}