:root{--ink:#141414;--paper:#ffffff;--hero:#191921;--accent:#ff5a36;
--accent-soft:#ffe9e3;--muted:#8a8a93;--radius:999px}
*{box-sizing:border-box}
body{margin:0;font-family:Verdana,Geneva,Tahoma,sans-serif;color:var(--ink);
background:var(--paper);line-height:1.55}
.display{font-family:"Trebuchet MS","Arial Narrow",Arial,sans-serif;
font-weight:800;letter-spacing:-.5px;text-transform:uppercase}
.topbar{position:sticky;top:0;z-index:10;background:#fff;border-bottom:3px solid var(--ink)}
.topbar-inner{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;
align-items:center;justify-content:space-between}
.logo{font-family:"Trebuchet MS","Arial Narrow",Arial,sans-serif;font-weight:800;
font-size:1.25rem;text-transform:uppercase;text-decoration:none;color:var(--ink)}
.logo em{font-style:normal;color:var(--accent)}
.topbar nav a{margin-left:16px;color:var(--ink);text-decoration:none;
font-weight:700;font-size:.8rem;text-transform:uppercase}
.topbar nav a:hover{color:var(--accent)}
.hero{background:var(--hero);color:#fff;padding:56px 0}
.hero-inner{max-width:1080px;margin:0 auto;padding:0 20px;display:grid;
grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:3rem;line-height:1.05;margin:0 0 14px;color:#fff}
.hero h1 span{color:var(--accent)}
.hero p{color:#cfcfd6;font-size:1.05rem}
.calc{background:#fff;color:var(--ink);border-radius:18px;padding:28px;
box-shadow:0 18px 50px rgba(0,0,0,.35)}
.calc h2{margin:0 0 16px;font-size:1.2rem;text-transform:uppercase;
font-family:"Trebuchet MS",Arial,sans-serif}
.calc label{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;
margin:12px 0 6px;color:#555}
.calc input{width:100%;padding:12px 14px;border:2px solid #141414;border-radius:12px;
font-size:1rem;font-family:inherit}
.calc button{margin-top:18px;width:100%;background:var(--accent);color:#fff;
border:0;border-radius:var(--radius);padding:14px;font-size:1rem;font-weight:800;
text-transform:uppercase;cursor:pointer;letter-spacing:.5px}
.calc button:hover{background:#e04a28}
.calc-out{margin-top:16px;background:var(--accent-soft);border-radius:12px;padding:16px}
.calc-out .m{font-size:2.1rem;font-weight:800}
.calc-out small{color:#555}
.stats{background:#fff;border-bottom:3px solid var(--ink)}
.stats-inner{max-width:1080px;margin:0 auto;padding:26px 20px;display:grid;
grid-template-columns:repeat(3,1fr);gap:20px;text-align:center}
.stats b{font-size:1.8rem;display:block}
.stats span{color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:1px}
.features{max-width:1080px;margin:0 auto;padding:48px 20px;display:grid;
grid-template-columns:repeat(3,1fr);gap:24px}
.feature h3{text-transform:uppercase;font-size:1rem;margin:0 0 8px}
.feature p{color:#555;font-size:.95rem}
footer.site{background:var(--ink);color:#b9b9c2;padding:40px 0 24px}
.foot-grid{max-width:1080px;margin:0 auto;padding:0 20px;display:grid;
grid-template-columns:2fr 1fr 1fr;gap:24px}
.foot-grid h4{color:#fff;text-transform:uppercase;font-size:.8rem;letter-spacing:1px}
.foot-grid a{color:#b9b9c2;text-decoration:none;display:block;margin:6px 0;font-size:.9rem}
.foot-grid a:hover{color:var(--accent)}
.foot-base{max-width:1080px;margin:24px auto 0;padding:16px 20px 0;
border-top:1px solid #333;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
font-size:.8rem;color:#8a8a93}
.foot-base a{color:#8a8a93}
.article{max-width:760px;margin:0 auto;padding:48px 20px}
.article h1{font-size:2.2rem}
.prose{max-width:760px;margin:0 auto;padding:48px 20px}
.prose h1{font-size:2.2rem}
.sourcelist li{margin:10px 0;font-size:.95rem}
.sourcelist a{color:var(--accent)}
.tablewrap{max-width:1080px;margin:0 auto;padding:32px 20px 8px}
.table-scroll{overflow-x:auto;border:3px solid var(--ink);border-radius:14px}
#kb-table{border-collapse:collapse;width:100%;min-width:720px;font-size:.88rem}
#kb-table th{background:var(--hero);color:#fff;text-align:left;padding:10px 12px;
cursor:pointer;user-select:none;white-space:nowrap;font-size:.75rem;
text-transform:uppercase;letter-spacing:.5px}
#kb-table th:hover{color:var(--accent)}
#kb-table td{padding:9px 12px;border-bottom:1px solid #e6e6ea}
#kb-table tr:nth-child(even) td{background:#fafafa}
#kb-table td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.fineprint{font-size:.82rem;color:var(--muted);margin:14px 0 0}
.fineprint a{color:var(--accent)}
.calc select{width:100%;padding:12px 14px;border:2px solid #141414;border-radius:12px;
font-size:1rem;font-family:inherit;background:#fff}
@media(max-width:820px){.hero-inner{grid-template-columns:1fr}
.hero h1{font-size:2.2rem}.features{grid-template-columns:1fr}
.stats-inner{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr}}