:root{--ink:#1d2430;--muted:#5b6575;--bg:#fbfaf7;--card:#fff;--line:#e4e1d8;--accent:#c2410c;--accent-dark:#9a3412;--ok:#166534;--warn-bg:#fff7ed;--radius:10px;--max:760px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Georgia,"Iowan Old Style","Times New Roman",serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:18px}
h1,h2,h3,h4,.site-header,.btn,table,.kicker,.disclosure,.calc,.meta,nav,footer{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent-dark)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}
.wide{max-width:1040px}
.site-header{background:#1d2430;color:#fff}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px;max-width:1040px}
.logo{color:#fff;text-decoration:none;font-weight:800;font-size:20px;letter-spacing:-.3px}
.logo span{color:#fdba74}
nav a{color:#e5e7eb;text-decoration:none;font-size:15px;margin-left:14px}
nav a:hover{color:#fff;text-decoration:underline}
main{padding:28px 0 48px}
h1{font-size:2.05rem;line-height:1.2;margin:.2em 0 .4em;letter-spacing:-.5px}
h2{font-size:1.45rem;line-height:1.3;margin:1.8em 0 .5em}
h3{font-size:1.15rem;margin:1.4em 0 .4em}
.kicker{text-transform:uppercase;letter-spacing:.08em;font-size:13px;color:var(--accent-dark);font-weight:700}
.meta{color:var(--muted);font-size:14px;margin-bottom:1.2em}
.lede{font-size:1.15rem;color:#2c3442}
.disclosure{background:var(--warn-bg);border:1px solid #fed7aa;border-radius:var(--radius);padding:10px 14px;font-size:14.5px;line-height:1.5;margin:1em 0}
.note{background:#f1f5f9;border-left:4px solid #64748b;padding:10px 14px;font-size:16px;margin:1.2em 0;border-radius:0 var(--radius) var(--radius) 0}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1em 0;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:560px}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f4f2ec;font-weight:700}
tr:last-child td{border-bottom:0}
.btn{display:inline-block;background:var(--accent);color:#fff!important;text-decoration:none;padding:10px 16px;border-radius:8px;font-weight:700;font-size:15px;margin:4px 6px 4px 0}
.btn:hover{background:var(--accent-dark)}
.btn.secondary{background:#334155}
.paid{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:12.5px;color:var(--muted);margin-left:2px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:1.5em 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card h3{margin-top:0;font-size:1.1rem}
.card h3 a{text-decoration:none;color:var(--ink)}
.card p{font-size:16px;color:#374151;margin:.4em 0 0}
.hero{background:linear-gradient(180deg,#1d2430 0,#2b3546 100%);color:#fff;padding:44px 0 40px}
.hero h1{color:#fff;font-size:2.3rem}
.hero p{color:#dbe2ea;font-size:1.15rem;max-width:640px}
.hero .btn{margin-top:10px}
.sources{font-size:15px}
.sources li{margin-bottom:.4em;word-break:break-word}
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 18px;font-size:16px}
.toc ol{margin:.3em 0;padding-left:1.2em}
footer{background:#111827;color:#cbd5e1;font-size:14px;padding:26px 0}
footer a{color:#e2e8f0}
footer .wrap{max-width:1040px}
.foot-links a{margin-right:14px;display:inline-block;margin-bottom:6px}
/* calculator */
.calc{background:#fff;border:2px solid #1d2430;border-radius:12px;padding:16px;margin:1.5em 0}
.calc h3{margin-top:0}
.calc-row{display:grid;grid-template-columns:28px 1.6fr 1fr 1fr 1fr;gap:6px;align-items:center;padding:6px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.calc-row.head{font-weight:700;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.calc input[type=number],.calc input[type=text],.calc select{width:100%;padding:7px;border:1px solid #cbd5e1;border-radius:6px;font-size:15px}
.calc-settings{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:14px 0}
.calc-settings label{font-size:14px;font-weight:600;display:block}
.calc-out{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin-top:14px}
.stat{background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:10px}
.stat b{display:block;font-size:1.4rem}
.stat span{font-size:13px;color:var(--muted)}
.calc .verdict{margin-top:12px;font-size:15px;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:8px;padding:10px}
@media (max-width:640px){
 body{font-size:17px}
 h1{font-size:1.65rem}
 .hero h1{font-size:1.8rem}
 nav a{margin-left:0;margin-right:12px}
 .calc-row{grid-template-columns:24px 1.4fr .9fr .9fr;}
 .calc-row .c-start{display:none}
}
/* category nav */
.cat-nav{background:#141a24;border-top:1px solid #2a3342}
.cat-nav .wrap{max-width:1040px;display:flex;gap:4px 18px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.cat-nav a{color:#fdba74;text-decoration:none;font-size:14.5px;font-weight:600;white-space:nowrap;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.cat-nav a:hover{color:#fff;text-decoration:underline}
@media (max-width:640px){.cat-nav .wrap{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch}}
/* quote form (static preview) */
.quote-form fieldset{border:1px solid #d6d3cd;border-radius:10px;padding:16px 18px;margin:0;display:grid;gap:6px}
.quote-form label{font-weight:600;font-size:14.5px;margin-top:8px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.quote-form input,.quote-form select,.quote-form textarea{font:inherit;padding:8px 10px;border:1px solid #c9c5bd;border-radius:6px;width:100%;box-sizing:border-box;background:#fff}
.quote-form fieldset[disabled]{opacity:.65}
.quote-form .btn{margin-top:12px;justify-self:start}
.foot-links strong{color:inherit;margin-right:8px;font-weight:700}
@media (max-width:640px){.cat-nav .wrap{-webkit-mask-image:linear-gradient(to right,#000 88%,transparent);mask-image:linear-gradient(to right,#000 88%,transparent);padding-right:28px}}
.group{margin:22px 0 10px;font-size:17px;text-transform:uppercase;letter-spacing:.04em;color:#475569}.group a{color:inherit}
.climate-picker{margin:4px 0 10px}.climate-picker .cz-out{font-size:14.5px;margin:6px 0 0}