*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#152033;background:#fff;line-height:1.6}a{color:#0c4f86}header{border-bottom:1px solid #e6ebf0;background:#fff;position:sticky;top:0;z-index:10}.wrap{max-width:1080px;margin:auto;padding:0 22px}.narrow{max-width:760px}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:22px;font-weight:800;text-decoration:none;color:#102b45}.brand span{color:#e66a19}.nav nav{display:flex;gap:20px;flex-wrap:wrap}.nav nav a{text-decoration:none;font-weight:700;color:#26394d}.hero,.pagehero{background:linear-gradient(135deg,#0d3558,#155f91);color:#fff}.hero{padding:74px 0}.pagehero{padding:48px 0}.hero h1,.pagehero h1{font-size:clamp(34px,6vw,58px);line-height:1.04;margin:10px 0 18px;max-width:850px}.pagehero h1{font-size:clamp(32px,5vw,48px)}.hero p{font-size:20px;max-width:720px}.tag{font-weight:800;letter-spacing:.12em;color:#ffb477}.btn{display:inline-block;border:0;border-radius:7px;background:#e66a19;color:#fff!important;text-decoration:none;font-weight:800;padding:14px 22px;cursor:pointer}.section{padding:58px 0}.alt{background:#f4f7f9}.section h2{line-height:1.2}.lede{font-size:20px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid.one{grid-template-columns:1fr}.card{border:1px solid #dce4ea;border-radius:10px;padding:22px;background:#fff}.linked{text-decoration:none;color:#152033;transition:.15s}.linked:hover{transform:translateY(-2px);border-color:#b7c8d6}.checklist{border-left:5px solid #e66a19;padding:8px 22px;background:#f7f9fb;border-radius:6px}.checklist p{margin:10px 0}.form{display:grid;gap:8px}.form label{font-weight:700;margin-top:8px}.form input,.form select{width:100%;padding:13px;border:1px solid #b8c4ce;border-radius:6px;font-size:16px}.notice{font-size:14px;color:#526170}.cta{margin:40px 0 10px;padding:26px;border-radius:10px;background:#102f4a;color:#fff}.cta h2{margin-top:0}.faq details{border-bottom:1px solid #d7e0e7;padding:15px 0}.faq summary{font-weight:800;cursor:pointer}.footer{padding:38px 0;background:#0c253a;color:#dfe8ef}.footer a{color:#fff;margin-right:18px}.copyright{margin-top:22px;font-size:14px;color:#bdcbd6}@media(max-width:760px){.nav{align-items:flex-start;padding-top:18px;padding-bottom:18px;flex-direction:column}.nav nav{gap:14px}.grid{grid-template-columns:1fr}.hero{padding:54px 0}.section{padding:42px 0}}
/* Bot trap: hidden from people, visible to basic form-filling bots in markup. */
.bot-trap{position:absolute!important;left:-10000px!important;top:auto!important;width:1px!important;height:1px!important;overflow:hidden!important;opacity:0!important;pointer-events:none!important}

/* Chicago Furnace Check header logo */
.brand{display:flex;align-items:center;text-decoration:none}
.site-logo{display:block;width:auto;height:64px;max-width:min(430px,48vw);object-fit:contain}
@media(max-width:760px){.site-logo{height:48px;max-width:72vw}}
/* Header logo fit correction */
.site-logo{height:58px;width:auto;max-width:360px;object-fit:contain;object-position:left center}
@media(max-width:760px){.site-logo{height:52px;max-width:min(360px,88vw)}}

/* Header logo v2: full uncropped source asset */
.site-logo{height:58px;width:auto;max-width:390px;object-fit:contain;object-position:left center}
@media(max-width:760px){.site-logo{height:52px;max-width:min(390px,88vw)}}