/* Stanphill Heating and Air — Gentry, AR */
:root{
  --navy:#10141c;
  --navy-2:#171c26;
  --paper:#f6f4ef;
  --paper-2:#ece8df;
  --ice:#1e6fd9;
  --ice-l:#5b9eef;
  --ember:#d62b20;
  --ember-l:#ff5a44;
  --brass:#c39a3f;
  --ink:#171a1f;
  --stone:#5b5f68;
  --line:rgba(23,26,31,.12);
  --line-dark:rgba(255,255,255,.14);
  --maxw:1200px;
  --r:3px;
  --display:"Fraunces","Iowan Old Style",Georgia,serif;
  --body:"Work Sans","Segoe UI",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);font-size:1.0625rem;line-height:1.62;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
img{height:auto}
a{color:inherit}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.06;letter-spacing:-.01em;margin:0 0 .45em;text-wrap:balance}
h1{font-size:clamp(2.3rem,5vw,3.9rem);font-weight:500}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
h3{font-size:1.2rem;font-family:var(--body);font-weight:700;letter-spacing:-.005em}
p{margin:0 0 1em;max-width:62ch}
:focus-visible{outline:3px solid var(--ice);outline-offset:3px}
.on-dark :focus-visible{outline-color:var(--ice-l)}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:clamp(60px,8vw,108px) 0}
.section-dark{background:var(--navy);color:#e9e7e0}
.section-dark .lead{color:#b9bcc4}
.section-dark h2,.section-dark h3{color:#fff}
.section-alt{background:var(--paper-2)}
.lead{font-size:1.16rem;color:var(--stone);max-width:56ch}
.center{text-align:center}
.center p.lead{margin-left:auto;margin-right:auto}
.eyebrow{font-family:var(--body);font-weight:700;font-size:.82rem;color:var(--ember);letter-spacing:.02em;margin:0 0 .8em}
.head-block{margin-bottom:clamp(30px,4.4vw,52px)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;font-family:var(--body);font-weight:700;font-size:1.02rem;text-decoration:none;padding:15px 27px;border-radius:var(--r);border:1.5px solid transparent;cursor:pointer;line-height:1.1;transition:background-color .2s,color .2s,border-color .2s,transform .2s;min-height:52px}
.btn svg{width:1.1em;height:1.1em;flex:none}
.btn-ember{background:var(--ember);color:#fff}
.btn-ember:hover{background:var(--ember-l)}
.btn-ice{background:var(--ice);color:#fff}
.btn-ice:hover{background:var(--ice-l)}
.btn-line{border-color:currentColor;background:transparent}
.btn-line:hover{background:rgba(255,255,255,.08)}
.on-light .btn-line{color:var(--ink)}
.on-light .btn-line:hover{background:rgba(23,26,31,.06)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.center .btn-row,.hero .btn-row{justify-content:center}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--navy);border-bottom:1px solid var(--line-dark)}
.hdr{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:82px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{height:40px;width:auto}
.brand span{font-family:var(--display);font-weight:600;font-size:1.28rem;color:#fff;letter-spacing:-.01em}
.brand small{display:block;font-family:var(--body);font-weight:500;font-size:.62rem;letter-spacing:.09em;color:var(--ice-l);margin-top:1px}
.nav{display:flex;align-items:center;gap:4px}
.nav a.nl{font-family:var(--body);font-weight:600;text-decoration:none;padding:10px 14px;border-radius:var(--r);font-size:.99rem;color:#d8d6cf}
.nav a.nl:hover{color:#fff}
.nav a.nl[aria-current="page"]{color:#fff;box-shadow:inset 0 -2px 0 var(--ember)}
.nav .btn{margin-left:12px;padding:11px 20px;min-height:46px;font-size:.98rem}
.menu-btn{display:none;background:none;border:1.5px solid rgba(255,255,255,.5);border-radius:var(--r);padding:8px 10px;cursor:pointer;min-height:44px;min-width:44px}
.menu-btn span{display:block;width:22px;height:2px;background:#fff;margin:5px 0;transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.hero{position:relative;background:var(--navy);color:#fff;padding:clamp(52px,7vw,84px) 0 clamp(70px,9vw,120px);overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;opacity:.92}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(16,20,28,.98) 0%,rgba(16,20,28,.94) 30%,rgba(16,20,28,.62) 55%,rgba(16,20,28,.22) 78%,rgba(16,20,28,.15) 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.8fr);gap:clamp(30px,5vw,60px);align-items:center}
.hero .eyebrow{color:var(--ice-l)}
.hero h1{max-width:15ch}
.hero .sub{font-size:clamp(1.05rem,1.7vw,1.24rem);max-width:48ch;color:#cfd0d4;margin:0 0 30px}
.chips{list-style:none;margin:32px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px 28px;font-weight:600;font-size:.95rem}
.chips li{display:flex;align-items:center;gap:8px;color:#e4e3dc}
.chips svg{width:19px;height:19px;color:var(--brass);flex:none}

/* Dial (SVG comfort gauge) */
.dial-wrap{display:flex;flex-direction:column;align-items:center;position:relative}
.dial-logo{filter:drop-shadow(0 0 30px rgba(30,111,217,.5)) drop-shadow(0 0 46px rgba(214,43,32,.32));margin-bottom:44px}
.dial-logo img{height:clamp(190px,20vw,320px);width:auto;display:block}
.dial-ring{position:relative;display:flex;justify-content:center}
.dial-ring::before{content:"";position:absolute;left:50%;top:52%;width:78%;height:78%;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(30,111,217,.22) 0%,rgba(214,43,32,.14) 55%,transparent 72%);filter:blur(6px);z-index:-1}
.dial{width:min(320px,84%);height:auto}
.dial-readout{text-align:center;margin-top:14px}
.dial-readout .temp{font-family:var(--display);font-size:clamp(2.2rem,4vw,2.9rem);font-weight:500;color:#fff;line-height:1;text-shadow:0 4px 20px rgba(0,0,0,.6),0 1px 3px rgba(0,0,0,.9)}
.dial-readout .cap{font-size:.85rem;color:#d7d9dd;letter-spacing:.02em;margin-top:2px;text-shadow:0 2px 10px rgba(0,0,0,.6)}

/* Trust strip */
.trust{background:var(--navy-2);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.trust ul{list-style:none;margin:0;padding:24px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust li{display:flex;gap:13px;align-items:flex-start;color:#e9e7e0}
.trust svg{width:30px;height:30px;color:var(--ember-l);flex:none}
.trust strong{display:block;font-family:var(--body);font-size:1.03rem;line-height:1.25}
.trust span{font-size:.9rem;color:#9a9da5;display:block}

/* Service grid */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc-card{background:var(--paper);padding:32px 28px;display:flex;flex-direction:column;gap:14px}
.svc-card .ic{width:46px;height:46px;color:var(--ember)}
.svc-card h3{margin-bottom:0}
.svc-card p{margin:0;color:var(--stone);font-size:.98rem}
.svc-card a{font-weight:700;font-size:.92rem;color:var(--ice);text-decoration:none;margin-top:auto}
.svc-card a:hover{text-decoration:underline}
.more{margin-top:36px}

/* Diagram (house airflow) */
.diagram-block{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,72px);align-items:center}
.diagram-svg{width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r)}

/* Seasonal timeline (real sequence -> numbered ok) */
.timeline{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:season}
.timeline li{padding:24px 22px 4px 0;border-top:3px solid var(--brass);position:relative;counter-increment:season}
.timeline li::before{content:counter(season,decimal-leading-zero);display:block;font-family:var(--display);font-weight:500;font-size:1.9rem;color:var(--brass);margin-bottom:2px;letter-spacing:.02em}
.timeline .szn{display:block;font-size:.82rem;font-weight:600;color:#9a9da5;margin-bottom:10px}
.timeline h3{font-size:1.08rem;margin-bottom:.3em}
.timeline p{font-size:.95rem;color:var(--stone);margin:0}
.section-dark .timeline p{color:#a9acb5}

/* Split blocks */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,74px);align-items:center}
.split img{width:100%;border-radius:var(--r)}
.photo-frame{position:relative;border:1px solid var(--line-dark)}
.ticks{list-style:none;margin:20px 0 28px;padding:0;display:grid;gap:13px}
.ticks li{display:flex;gap:12px;align-items:flex-start}
.ticks svg{width:21px;height:21px;color:var(--ember);flex:none;margin-top:3px}

/* Reviews carousel */
.car{max-width:820px;margin:0 auto}
.car-view{overflow:hidden}
.car-track{display:flex;transition:transform .6s cubic-bezier(.3,.7,.2,1);will-change:transform}
.car-slide{flex:0 0 100%;min-width:0;display:flex;padding:2px}
.review{background:var(--navy-2);border-top:3px solid var(--brass);padding:clamp(26px,4vw,42px);width:100%;display:flex;flex-direction:column;gap:20px;min-height:220px;justify-content:space-between}
.car-ctl{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:26px}
.car-btn{width:46px;height:46px;border-radius:50%;border:1.5px solid rgba(255,255,255,.35);background:transparent;color:#fff;cursor:pointer;display:grid;place-items:center;transition:background-color .2s,border-color .2s}
.car-btn:hover{background:rgba(255,255,255,.1);border-color:#fff}
.car-btn svg{width:19px;height:19px}
.dots{display:flex;gap:6px}
.dots button{width:28px;height:28px;padding:0;background:none;border:0;cursor:pointer;display:grid;place-items:center}
.dots button::after{content:"";width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.22);transition:background-color .2s,transform .2s}
.dots button[aria-current="true"]::after{background:var(--brass);transform:scale(1.3)}
.stars{display:flex;gap:3px;color:var(--brass)}
.stars svg{width:18px;height:18px}
.review blockquote{margin:0;font-family:var(--display);font-size:clamp(1.08rem,1.7vw,1.28rem);line-height:1.5;font-weight:400;color:#fff}
.review footer{font-size:.92rem;color:#9a9da5}
.review footer strong{color:#e4e3dc;font-family:var(--body)}

/* Areas */
.areas{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.areas li{background:var(--paper);border:1px solid var(--line);padding:9px 17px;font-weight:600;font-size:.96rem}

/* FAQ */
.faq{max-width:840px}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:21px 44px 21px 0;font-family:var(--body);font-weight:700;font-size:1.1rem;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:1.7rem;font-weight:400;color:var(--ember);transition:transform .2s}
.faq details[open] summary::after{content:"\2212"}
.faq details p{padding:0 44px 22px 0;margin:0;color:var(--stone)}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--ember) 0%,#b8241b 100%);color:#fff;text-align:center;padding:clamp(52px,7vw,90px) 0}
.cta-band h2{color:#fff}
.cta-band p{max-width:52ch;margin:0 auto 26px;font-size:1.15rem;color:#ffe3df}
.cta-band .phone-big{display:block;font-family:var(--display);font-weight:500;font-size:clamp(2.2rem,6vw,4rem);letter-spacing:-.01em;text-decoration:none;margin:0 0 24px;color:#fff;line-height:1}
.cta-band .phone-big:hover{text-decoration:underline;text-underline-offset:6px}

/* Page hero (inner) */
.page-hero{background:var(--navy);color:#fff;padding:clamp(50px,7vw,86px) 0 clamp(40px,5vw,60px);position:relative;overflow:hidden;isolation:isolate}
.page-hero.has-bg{padding:clamp(64px,9vw,110px) 0 clamp(56px,7vw,84px)}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;opacity:.9}
.page-hero.has-bg::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(16,20,28,.97) 0%,rgba(16,20,28,.9) 34%,rgba(16,20,28,.5) 62%,rgba(16,20,28,.2) 100%)}
.page-hero .lead{color:#c3c5cb}
.crumbs{font-size:.9rem;color:#9a9da5;margin-bottom:18px}
.crumbs a{color:#c3c5cb}

/* Services page groups */
.group{padding:clamp(46px,6vw,78px) 0;border-bottom:1px solid var(--line)}
.group:last-of-type{border-bottom:0}
.group-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(26px,5vw,64px);align-items:start}
.group h2{margin-bottom:.4em}
.items{list-style:none;margin:0;padding:0;display:grid;gap:0}
.items li{padding:17px 0 17px 26px;border-top:1px solid var(--line);position:relative}
.items li:first-child{border-top:0;padding-top:0}
.items li:first-child::before{top:8px}
.items li::before{content:"";position:absolute;left:0;top:27px;width:9px;height:9px;background:var(--ember);border-radius:50%}
.items strong{font-family:var(--body);font-size:1.08rem;display:block;line-height:1.25}
.items span{color:var(--stone);display:block}
.sticky-col{position:sticky;top:108px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:700;color:var(--ice);background:rgba(30,111,217,.1);padding:5px 11px;border-radius:100px;margin-bottom:14px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(30px,5vw,74px);align-items:start}
.info-list{list-style:none;margin:24px 0;padding:0;display:grid;gap:18px}
.info-list li{display:flex;gap:14px;align-items:flex-start}
.info-list svg{width:25px;height:25px;color:var(--ember);flex:none;margin-top:2px}
.info-list strong{display:block;font-family:var(--body)}
.info-list a{text-decoration:none;font-weight:600}
.info-list a:hover{text-decoration:underline}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 26px;padding:0;list-style:none}
.badges li{display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);padding:9px 15px;font-weight:700;border-radius:var(--r);font-size:.95rem;background:var(--paper)}
.badges svg{width:19px;height:19px;color:var(--ember)}
.form{background:var(--navy-2);color:#fff;padding:clamp(24px,4vw,42px);border-top:4px solid var(--ember)}
.form h2{font-size:1.65rem;color:#fff}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-weight:600;font-size:.94rem;color:#d8d6cf}
.field label small{font-weight:400;color:#9a9da5}
.field input,.field select,.field textarea{font:inherit;padding:13px 14px;border:1.5px solid rgba(255,255,255,.22);border-radius:var(--r);background:rgba(255,255,255,.05);color:#fff;width:100%;min-height:50px}
.field select option{color:#111}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid rgba(91,158,239,.45);border-color:var(--ice-l)}
.form .btn{width:100%;margin-top:22px}
.form-note{font-size:.87rem;color:#9a9da5;margin:14px 0 0}
.form-note a{color:#c3c5cb}
.form-status{margin-top:16px;padding:14px 16px;background:rgba(255,255,255,.06);border-left:4px solid var(--ice-l);display:none}
.form-status.show{display:block}

/* Legal */
.legal{max-width:760px}
.legal h2{font-size:1.35rem;margin-top:1.8em}
.legal p,.legal li{color:#3a3a37}
.legal ul{padding-left:1.2em}

/* Footer */
.site-footer{background:var(--navy);color:#c3c5cb;border-top:1px solid var(--line-dark);padding:clamp(44px,6vw,66px) 0 0}
.foot{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot .brand{margin-bottom:14px}
.foot p{color:#8b8e97;font-size:.96rem}
.foot h3{font-size:.98rem;margin-bottom:.8em;color:#fff;font-family:var(--body)}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot a{text-decoration:none;color:#c3c5cb}
.foot a:hover{text-decoration:underline}
.foot .ph{font-family:var(--display);font-weight:500;font-size:1.4rem;color:var(--ember-l);text-decoration:none;display:inline-block;margin-bottom:6px}
.foot-bottom{margin-top:38px;padding:20px 0 24px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;font-size:.88rem;color:#787b84}
.foot-bottom a{color:#787b84}

/* Mobile call bar */
.callbar{display:none}

@media (max-width:1050px){
  .trust ul{grid-template-columns:1fr 1fr}
  .svc-grid{grid-template-columns:1fr 1fr}
  .timeline{grid-template-columns:1fr 1fr;gap:26px 28px}
  .reviews{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr}
  .dial-wrap{margin-top:20px}
}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--navy);border-bottom:1px solid var(--line-dark);flex-direction:column;align-items:stretch;padding:8px 24px 20px;display:none;gap:0}
  .nav.open{display:flex}
  .nav a.nl{padding:16px 4px;border-bottom:1px solid var(--line-dark);border-radius:0;color:#e9e7e0}
  .nav a.nl[aria-current="page"]{box-shadow:inset 4px 0 0 var(--ember);padding-left:14px}
  .nav .btn{margin:16px 0 0}
  .svc-grid{grid-template-columns:1fr}
  .split,.contact-grid,.group-grid,.diagram-block{grid-template-columns:1fr}
  .sticky-col{position:static}
  .callbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--navy);border-top:1px solid var(--line-dark);box-shadow:0 -6px 20px rgba(0,0,0,.3);padding:10px;gap:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom,0px))}
  .callbar .btn{min-height:50px;padding:12px 10px;font-size:.98rem}
  body{padding-bottom:78px}
}
@media (max-width:600px){
  .trust ul{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .fields{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr}
  .hero .btn-row .btn{width:100%}
  .brand img{height:34px}
  .brand span{font-size:1.1rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* Free second opinion card */
.so-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:clamp(24px,3.5vw,36px);box-shadow:0 24px 50px -30px rgba(16,20,28,.45);position:relative}
.so-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:2px solid var(--ink);margin-bottom:6px}
.so-label{font-family:var(--display);font-weight:600;font-size:1.5rem;letter-spacing:-.01em}
.so-stamp{font-family:var(--body);font-weight:800;font-size:.95rem;text-transform:uppercase;letter-spacing:.14em;color:var(--ember);border:2.5px solid var(--ember);border-radius:var(--r);padding:6px 14px;transform:rotate(-6deg);box-shadow:inset 0 0 0 2px var(--paper),inset 0 0 0 3.5px rgba(214,43,32,.35)}
.so-steps{list-style:none;margin:0;padding:0;counter-reset:so}
.so-steps li{counter-increment:so;display:grid;grid-template-columns:40px 1fr;column-gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.so-steps li::before{content:counter(so);grid-row:span 2;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;font-size:.92rem;display:grid;place-items:center;margin-top:1px}
.so-steps strong{font-size:1.03rem;line-height:1.3}
.so-steps span{color:var(--stone);font-size:.95rem;line-height:1.45}
.so-foot{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-top:18px}
.so-foot span{font-weight:600;color:var(--stone)}
.so-foot strong{font-family:var(--display);font-size:2.4rem;font-weight:600;color:var(--ember);line-height:1}
.diagram-block .btn-row{margin-top:26px}
/* Maintenance plan call-out under the seasonal timeline */
.plan-cta{margin-top:40px;padding:24px 28px;border:1px solid var(--line-dark);border-left:4px solid var(--brass);border-radius:var(--r);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:rgba(255,255,255,.03)}
.plan-cta p{margin:0;max-width:62ch;color:#d8d6cf}
.plan-cta strong{color:#fff}
.section-dark .lead{color:#b9b7b0}
@media (max-width:860px){.diagram-block{grid-template-columns:1fr}}