/* Heater Doctor v2. Layout: light local-business pages; navy for structure, brass for calls; blueprint diagram as the signature visual. */
:root{
--navy:#0e2741;--navy-deep:#08182a;--navy-mid:#1c4570;--steel:#5f7184;--ink:#0b1a2b;--text:#2b3846;
--brass:#d9822b;--brass-dark:#b96a1c;--brass-tint:#fbefe2;--alert:#c33a2c;--alert-tint:#fbe7e4;--ok:#2f7a4f;
--paper:#ffffff;--mist:#f2f5f9;--grid:#dfe7f0;--line:#d5dee8;
--radius:6px;--wrap:1180px;
--font-head:"Barlow Semi Condensed","Arial Narrow",Arial,sans-serif;--font-body:"Barlow",Arial,sans-serif;
color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:400 17.5px/1.65 var(--font-body);color:var(--text);background:var(--paper);padding-bottom:68px}
@media(min-width:960px){body{padding-bottom:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);line-height:1.08;text-wrap:balance;margin:0 0 12px}
h1{font-size:clamp(2.3rem,5vw,3.7rem);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700}
h3{font-size:1.3rem;font-weight:700}
p{margin:0 0 14px}a{color:var(--navy-mid)}img,svg{max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
.kicker{display:inline-flex;align-items:center;gap:8px;font:600 .82rem/1 var(--font-head);text-transform:uppercase;letter-spacing:.14em;color:var(--brass-dark);margin-bottom:12px}
.kicker::before{content:"";width:22px;height:2px;background:var(--brass)}
.lede{font-size:1.12rem;color:#425264;max-width:46rem}
.note{font-size:.88rem;color:var(--steel)}
/* utility + header */
.util{background:var(--navy-deep);color:#c6d3e1;font-size:.86rem}
.util .wrap{display:flex;gap:18px;justify-content:space-between;align-items:center;padding-block:7px}
.util a{color:#fff;font-weight:600;text-decoration:none}.util .live{display:inline-flex;align-items:center;gap:7px}
.util .live::before{content:"";width:8px;height:8px;border-radius:50%;background:#46c47a;box-shadow:0 0 0 3px rgba(70,196,122,.25)}
.util .hide-sm{display:none}@media(min-width:760px){.util .hide-sm{display:inline}}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(8,24,42,.04)}
.nav-row{display:flex;align-items:center;gap:26px;padding-block:12px}
.logo{display:flex;margin-right:auto;text-decoration:none}.logo svg{width:230px;height:44px;display:block}
@media(min-width:960px){.logo svg{width:272px;height:52px}}
.nav{display:none;gap:24px}.nav a{font:600 1.02rem var(--font-head);letter-spacing:.02em;text-transform:uppercase;color:var(--ink);text-decoration:none}.nav a:hover{color:var(--brass-dark)}
.head-phone{display:none;flex-direction:column;align-items:flex-end;line-height:1.1;text-decoration:none}
.head-phone small{font:600 .74rem var(--font-head);letter-spacing:.12em;text-transform:uppercase;color:var(--steel)}
.head-phone strong{font:700 1.55rem var(--font-head);color:var(--navy)}
@media(min-width:960px){.nav,.head-phone{display:flex}.menu-toggle{display:none}}
.menu-toggle{font-size:1.35rem;background:#fff;border:1px solid var(--line);border-radius:6px;padding:4px 11px;color:var(--ink)}
.mobile-menu{display:flex;flex-direction:column;padding:6px 18px 16px;border-top:1px solid var(--line)}.mobile-menu[hidden]{display:none}
.mobile-menu a{padding:11px 0;font:600 1.05rem var(--font-head);text-transform:uppercase;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--mist)}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:12px;border-radius:var(--radius);text-decoration:none;font-family:var(--font-head);font-weight:700;letter-spacing:.02em;line-height:1.05;transition:background .15s,transform .15s}
.btn svg{width:22px;height:22px;flex:none}
.btn-call{background:var(--brass);color:#fff;padding:14px 22px 14px 18px;box-shadow:0 8px 20px rgba(185,106,28,.25)}
.btn-call:hover{background:var(--brass-dark)}
.btn-call .stack{display:flex;flex-direction:column}.btn-call small{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;opacity:.9}
.btn-call b{font-size:1.45rem}
.btn-line{border:2px solid var(--navy);color:var(--navy);padding:13px 20px;font-size:1.1rem;text-transform:uppercase}
.btn-line:hover{background:var(--navy);color:#fff}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #3b82f6;outline-offset:2px}
/* hero */
.hero{position:relative;background-color:var(--mist);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;border-bottom:1px solid var(--line);padding-block:44px 0;overflow:hidden}
.hero-grid{display:grid;gap:22px;align-items:end}
@media(min-width:960px){.hero-grid{grid-template-columns:1fr 1fr;gap:28px}}
.hero-copy{padding-bottom:44px}
.alert-pill{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px 6px 10px;font-weight:600;font-size:.95rem;color:var(--ink);margin-bottom:18px}
.alert-pill i{width:9px;height:9px;border-radius:50%;background:var(--alert);box-shadow:0 0 0 4px var(--alert-tint)}
.hero h1 em{font-style:normal;color:var(--navy-mid)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:24px 0 22px}
.brands{font-size:.92rem;color:var(--steel)}.brands b{color:var(--ink);font-weight:600}
.hero-art{align-self:end;display:flex;justify-content:center}
.hero-art svg{width:100%;max-width:620px;height:auto;display:block}
.breadcrumb{font-size:.92rem;color:var(--steel);margin-bottom:14px}.breadcrumb a{color:var(--navy-mid)}
/* trust bar */
.trustbar{background:var(--navy);color:#dbe5f0}
.trustbar ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.trustbar li{display:flex;gap:12px;align-items:center;padding:18px 16px;border-right:1px solid rgba(255,255,255,.08);font-size:.92rem;line-height:1.4}
.trustbar li:last-child{border-right:0}
.trustbar svg{width:30px;height:30px;color:var(--brass);flex:none}
.trustbar strong{display:block;color:#fff;font:700 1.08rem var(--font-head);letter-spacing:.02em}
/* sections */
section{padding-block:72px}.bg-mist{background:var(--mist)}.bg-navy{background:var(--navy);color:#cfdae6}.bg-navy h2,.bg-navy h3{color:#fff}
.sec-head{display:grid;gap:8px;margin-bottom:34px;max-width:52rem}
/* symptom checker */
.checker{display:grid;gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 20px 40px rgba(8,24,42,.06)}
@media(min-width:900px){.checker{grid-template-columns:320px 1fr}}
.sym-list{display:flex;flex-direction:column;background:var(--mist);border-right:1px solid var(--line)}
.sym-list button{all:unset;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--line);font:600 1.08rem var(--font-head);color:var(--ink)}
.sym-list button:hover{background:#e8eef5}
.sym-list button[aria-selected="true"]{background:#fff;box-shadow:inset 4px 0 0 var(--brass)}
.sym-list button:focus-visible{outline:3px solid #3b82f6;outline-offset:-3px}
.sym-panel{padding:28px;min-width:0}
.sym-panel h3{font-size:1.7rem}
.dx{display:grid;gap:18px;margin:18px 0 22px}@media(min-width:700px){.dx{grid-template-columns:1fr 1fr}}
.dx h4{font:700 .8rem var(--font-head);letter-spacing:.14em;text-transform:uppercase;color:var(--steel);margin-bottom:6px}
.dx ul{margin:0;padding-left:18px}.dx li{margin-bottom:4px}
.badge{display:inline-block;font:700 .78rem/1 var(--font-head);letter-spacing:.12em;text-transform:uppercase;padding:6px 10px;border-radius:4px}
.b-red{background:var(--alert-tint);color:var(--alert)}.b-amber{background:var(--brass-tint);color:var(--brass-dark)}.b-blue{background:#e4edf7;color:var(--navy-mid)}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;padding:14px 0;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);margin-bottom:20px;font-size:.98rem}
.meta-row b{font-family:var(--font-head);font-size:1.15rem;color:var(--ink)}
/* stats */
.stats{display:grid;gap:1px;background:rgba(255,255,255,.12);grid-template-columns:repeat(auto-fit,minmax(220px,1fr));border-radius:8px;overflow:hidden}
.stat{background:var(--navy);padding:26px}
.stat .num{font:700 2.8rem/1 var(--font-head);color:#fff;font-variant-numeric:tabular-nums}
.stat .num span{color:var(--brass)}
.stat p{margin:10px 0 4px;color:#cfdae6}.stat a{color:#9fb7d1;font-size:.82rem}
/* services */
.svc-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.svc{display:flex;flex-direction:column;gap:6px;padding:26px;border:1px solid var(--line);border-radius:8px;background:#fff;text-decoration:none;color:var(--text);transition:border-color .15s,box-shadow .15s}
.svc:hover{border-color:var(--navy-mid);box-shadow:0 12px 26px rgba(8,24,42,.08)}
.svc .ico{width:46px;height:46px;color:var(--navy-mid);margin-bottom:6px}
.svc h3{margin:0}.svc .go{margin-top:auto;padding-top:8px;font:700 .95rem var(--font-head);letter-spacing:.06em;text-transform:uppercase;color:var(--brass-dark)}
/* areas */
.areas{display:grid;gap:34px;align-items:center}@media(min-width:960px){.areas{grid-template-columns:1.15fr .85fr}}
.usmap{width:100%;height:auto;display:block}
.usmap .st{fill:#dbe3ec;stroke:#fff;stroke-width:1.2}
.usmap .st.on{fill:var(--navy-mid);transition:fill .15s}.usmap a:hover .st.on,.usmap a:focus .st.on{fill:var(--brass)}
.state-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.state-list a{display:flex;justify-content:space-between;gap:8px;padding:11px 2px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);font:600 1.12rem var(--font-head)}
.state-list a span{color:var(--steel);font:500 .9rem var(--font-body)}
.state-list a:hover{color:var(--brass-dark)}
/* decision */
.life{margin:20px 0 8px}
.life-bar{display:grid;grid-template-columns:6fr 4fr 4fr;border-radius:6px;overflow:hidden;font:700 .9rem var(--font-head);letter-spacing:.06em;text-transform:uppercase;color:#fff}
.life-bar div{padding:12px 14px}.l1{background:var(--ok)}.l2{background:var(--brass)}.l3{background:var(--alert)}
.life-scale{display:grid;grid-template-columns:6fr 4fr 4fr;font-size:.85rem;color:var(--steel);margin-top:6px;font-variant-numeric:tabular-nums}
.split{display:grid;gap:36px}@media(min-width:960px){.split{grid-template-columns:1fr 1fr}}
table{border-collapse:collapse;width:100%;font-size:.98rem;background:#fff}.table-scroll{overflow-x:auto}
th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font:700 .82rem var(--font-head);letter-spacing:.12em;text-transform:uppercase;color:var(--steel);background:var(--mist)}
td.num{font-variant-numeric:tabular-nums;white-space:nowrap;font-weight:600;color:var(--ink)}
/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:18px;counter-reset:s}@media(min-width:800px){.steps{grid-template-columns:repeat(3,1fr)}}
.steps li{counter-increment:s;position:relative;padding:26px;background:#fff;border:1px solid var(--line);border-radius:8px}
.steps li::before{content:"0" counter(s);font:700 2.4rem/1 var(--font-head);color:var(--brass);display:block;margin-bottom:10px}
/* safety tag */
.tag-card{position:relative;background:var(--brass-tint);border:1px solid #efd3b4;border-radius:8px;padding:26px 26px 22px}
.tag-card h3{color:#7a420c}.tag-card ol{margin:0;padding-left:20px}.tag-card li{margin-bottom:8px}
/* faq */
.faq{display:grid;gap:0 40px}@media(min-width:960px){.faq{grid-template-columns:1fr 1fr}}
details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font:700 1.2rem var(--font-head);color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}summary::after{content:"+";color:var(--brass-dark);font-size:1.5rem;line-height:1}details[open] summary::after{content:"\2212"}
details p{margin:10px 0 0}
/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.chips a,.chips span{display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:4px;background:#fff;font-weight:600;color:var(--ink);text-decoration:none}
.chips span{color:var(--text);font-weight:500}.chips a:hover{border-color:var(--navy-mid)}
/* cta band */
.cta{background:var(--navy-deep);color:#c6d3e1;padding-block:56px;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:28px 28px}
.cta .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
.cta h2{color:#fff;margin-bottom:6px}
/* footer */
.site-footer{background:var(--navy-deep);color:#9fb0c3;padding-block:52px 22px;border-top:1px solid #16304d}
.footer-grid{display:grid;gap:30px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.site-footer a{color:#e3eaf2;text-decoration:none;display:block;padding:3px 0}.site-footer a:hover{color:var(--brass)}
.footer-h{font:700 .85rem var(--font-head);letter-spacing:.14em;text-transform:uppercase;color:#fff;margin-bottom:10px}
.footer-logo svg{width:251px;height:48px}
.foot-phone{font:700 1.6rem var(--font-head);color:#fff!important}
.legal{margin-top:34px;padding-top:18px;border-top:1px solid #1b3655;font-size:.86rem}.legal a{display:inline;color:#c6d3e1}
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;justify-content:center;align-items:center;gap:10px;background:var(--brass);color:#fff;font:700 1.15rem var(--font-head);letter-spacing:.03em;text-decoration:none;padding:15px max(16px,env(safe-area-inset-right,0px)) calc(15px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));box-shadow:0 -6px 18px rgba(8,24,42,.18)}
.callbar svg{width:20px;height:20px}
@media(min-width:960px){.callbar{display:none}}
/* v3: illustrated images */
.svc.has-img{padding:0;overflow:hidden;gap:0}
.svc.has-img img{display:block;width:100%;height:auto;aspect-ratio:16/9;border-bottom:1px solid var(--line);transition:transform .25s}
.svc.has-img:hover img{transform:scale(1.03)}
.svc-body{display:flex;flex-direction:column;gap:6px;padding:22px 24px 24px;flex:1;background:#fff;position:relative}
.steps li img{display:block;width:100%;max-width:200px;height:auto;margin-bottom:14px;border-radius:10px}
.steps li:has(img)::before{position:absolute;top:18px;right:20px;margin:0}
.winter{position:relative;padding:0;background:var(--navy-deep);overflow:hidden}
.winter>img{display:block;width:100%;height:auto;min-height:260px;object-fit:cover;object-position:50% 50%}
.winter .wrap{position:relative;margin-top:-60px;padding-bottom:56px}
.winter-card{background:#fff;border-radius:10px;padding:28px;max-width:640px;box-shadow:0 24px 48px rgba(8,24,42,.28);border-top:4px solid var(--brass)}
@media(min-width:960px){.winter>img{min-height:0}.winter .wrap{position:absolute;inset:0;margin:0 auto;padding-bottom:0;display:flex;align-items:center}.winter-card{max-width:470px}}
.legal{display:grid;gap:10px}
.legal .fine{font-size:.74rem;line-height:1.5;color:#5d7088;margin:0}
.steps li:has(img){display:grid;grid-template-columns:120px 1fr;gap:4px 18px;align-items:center;padding:18px 22px}
.steps li:has(img) img{grid-row:span 2;margin:0;max-width:120px}
.steps li:has(img) h3{align-self:end;margin:0;padding-right:44px}.steps li:has(img) p{align-self:start;margin:0}
.steps li:has(img)::before{font-size:1.6rem;top:16px;right:18px}
.winter>img{object-position:72% 50%}
/* v3: inner pages */
.page-hero{background:var(--mist);border-bottom:1px solid var(--line);padding-block:44px 40px}
.page-hero h1{margin-bottom:10px}
.hero-photo img{display:block;width:100%;max-width:600px;height:auto;border-radius:12px;border:1px solid var(--line);box-shadow:0 24px 48px rgba(8,24,42,.12);margin-bottom:44px}
.prose h3{margin-top:22px}.prose h2{margin-top:28px}.prose h2:first-child,.prose .kicker+h2{margin-top:0}
.facts{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.facts>div{background:#fff;padding:14px 18px}.facts span{font:700 .78rem var(--font-head);letter-spacing:.14em;text-transform:uppercase;color:var(--brass-dark)}
.facts p{margin:4px 0 0;font-size:.98rem}
.area-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.area-card{border:1px solid var(--line);border-radius:8px;padding:22px;background:#fff}
.area-card h3{margin:0}.area-card h3 a{color:var(--ink);text-decoration:none}.area-card h3 a:hover{color:var(--brass-dark)}
.area-card .chips span{padding:5px 10px;font-size:.92rem}
img.rounded{display:block;width:100%;height:auto;border-radius:10px}
/* town pages */
.narrow{max-width:820px}
.src-list{margin:0 0 12px;padding-left:18px}.src-list li{margin-bottom:6px}.src-list a{color:var(--navy-mid)}
.post-photo{margin:0 0 24px}
.post-photo img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.svc.has-img img{object-fit:cover}