:root{--bg:#faf7f0;--paper:#fff;--ink:#22262a;--muted:#6a6f75;--line:#e2ddd0;--terra:#c2532e;--slate:#3d5a73;--mustard:#d9a441;--sand:#f1e9d8}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--slate)}a:hover{color:var(--terra)}:focus-visible{outline:3px solid var(--mustard);outline-offset:3px}button,input,select{font:inherit}
.wrap{width:min(1140px,calc(100% - 32px));margin-inline:auto}
.masthead{text-align:center;padding:26px 0 14px}.masthead a{text-decoration:none;color:var(--ink)}.masthead svg{width:48px;height:48px;display:block;margin:0 auto 8px}
.masthead b{display:block;font:700 clamp(1.8rem,4vw,2.7rem)/1 Georgia,"Times New Roman",serif}.masthead small{display:block;color:var(--muted);letter-spacing:.18em;text-transform:uppercase;font-size:.72rem;margin-top:10px}
.navbar{border-top:3px double var(--ink);border-bottom:1px solid var(--ink);display:flex;justify-content:center;flex-wrap:wrap}
.navbar a{text-decoration:none;color:var(--ink);font-weight:600;font-size:.86rem;padding:11px 16px;text-transform:uppercase;letter-spacing:.07em}.navbar a[aria-current]{color:var(--terra);box-shadow:inset 0 -3px var(--terra)}
main{padding:30px 0 56px}h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.15;margin:0 0 .45em}h1{font-size:clamp(1.9rem,4.6vw,3rem)}h2{font-size:1.6rem;margin-top:1.4em}h3{font-size:1.2rem}
.kicker{font-size:.74rem;text-transform:uppercase;letter-spacing:.16em;color:var(--terra);font-weight:700;margin:0 0 8px}.lead{font-size:1.15rem;color:#3f454b;max-width:62ch}
.feature{display:grid;grid-template-columns:2fr 1fr;gap:26px;align-items:stretch}.story{background:var(--paper);border:1px solid var(--line);padding:22px;display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}
.story svg,.card svg,.figure svg{width:100%;height:auto;display:block}.stack{display:grid;gap:26px}.promo{display:block;background:var(--sand);border:1px solid var(--line);padding:20px;text-decoration:none;color:var(--ink)}
.promo:hover{border-color:var(--terra);color:var(--ink)}.promo h3{margin-bottom:.3em}.promo p{margin:0;color:var(--muted);font-size:.95rem}
.rule{display:flex;align-items:center;gap:16px;margin:40px 0 18px}.rule h2{margin:0;white-space:nowrap}.rule:after{content:"";flex:1;border-top:1px solid var(--ink)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px 24px}.card{display:block;text-decoration:none;color:var(--ink);background:var(--paper);border:1px solid var(--line)}
.card:hover{border-color:var(--terra);color:var(--ink)}.card .body{padding:14px 16px 18px}.card .num{font:700 .8rem/1 Georgia,serif;color:var(--terra);letter-spacing:.1em}.card h3{margin:6px 0 4px}.card p{margin:0;color:var(--muted);font-size:.95rem}.card .meta{font-size:.82rem;color:var(--slate);margin-top:8px}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);margin:22px 0}.facts div{padding:12px 14px;border-right:1px solid var(--line)}.facts div:last-child{border-right:0}.facts b{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.cols{display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:start}.figure{border:1px solid var(--line);background:var(--paper);padding:10px}.figure figcaption{font-size:.85rem;color:var(--muted);padding:8px 4px 2px}
.sights{list-style:none;padding:0;margin:0}.sights li{padding:14px 0;border-bottom:1px solid var(--line)}.sights b{font-family:Georgia,serif;font-size:1.1rem}.sights p{margin:4px 0 0}
.note{background:var(--sand);border-left:4px solid var(--mustard);padding:14px 18px;margin:20px 0}.side h3{margin-top:0}
.tool{background:var(--paper);border:1px solid var(--line);padding:22px;display:grid;grid-template-columns:1fr 1fr;gap:22px}.tool fieldset{border:0;padding:0;margin:0 0 12px}.tool legend{font-weight:700;font-family:Georgia,serif;font-size:1.1rem;margin-bottom:6px}
.tool label{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:6px 0;border-bottom:1px dotted var(--line)}.tool input[type=number],.tool select{width:150px;padding:6px 8px;border:1px solid #c9c3b4;background:#fff}.tool .radio{justify-content:flex-start}
.result{background:var(--sand);padding:18px;align-self:start}.result table{width:100%;border-collapse:collapse}.result td{padding:6px 0;border-bottom:1px dotted #d3cbb8}.result td:last-child{text-align:right;font-variant-numeric:tabular-nums}.result .total td{font-weight:700;border-bottom:0;font-size:1.1rem}
.check{columns:2;column-gap:32px}.check section{break-inside:avoid;margin-bottom:22px}.check h3{border-bottom:1px solid var(--ink);padding-bottom:4px}.check label{display:flex;gap:10px;align-items:flex-start;padding:5px 0;cursor:pointer}.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--terra)}.check input:checked+span{color:var(--muted);text-decoration:line-through}
.bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);padding:10px 0;margin:18px 0}.btn{background:var(--ink);color:#fff;border:0;padding:9px 16px;cursor:pointer;font-weight:600}.btn:hover{background:var(--terra)}
table.plain{width:100%;border-collapse:collapse;margin:14px 0}.plain th,.plain td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}.plain th{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
footer{border-top:3px double var(--ink);padding:22px 0 40px;font-size:.9rem;color:var(--muted)}footer .wrap{display:grid;grid-template-columns:2fr 1fr;gap:24px}footer p{margin:0 0 8px}
@media (max-width:900px){.feature,.story,.cols,.tool,footer .wrap{grid-template-columns:1fr}.grid3{grid-template-columns:1fr 1fr}.facts{grid-template-columns:1fr 1fr}.facts div:nth-child(2){border-right:0}.facts div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:560px){.grid3{grid-template-columns:1fr}.check{columns:1}.tool input[type=number],.tool select{width:120px}body{font-size:16px}}