/* IDR HVAC Solutions - lightweight site stylesheet (replaces Bootstrap 4)
   Design language modelled on scanmynest.com: DM Sans, rounded cards, soft shadows,
   pill-style buttons, CSS grid layouts. Colors are the existing IDR palette. */

:root{
  --navy-900:#020d35;      /* hero dark */
  --navy-800:#04163f;      /* nav top */
  --navy-700:#0a2c6b;      /* nav bottom */
  --navy-600:#123b7a;      /* hero highlight */
  --footer:#00376b;
  --primary:#007bff;       /* links + primary buttons (was Bootstrap primary) */
  --primary-dark:#0062cc;
  --success:#28a745;
  --danger:#dc3545;
  --warning:#ffc107;       /* call button */
  --text:#212529;
  --muted:#6c757d;
  --bg:#f8f9fa;            /* was bg-light */
  --white:#fff;
  --line:rgba(2,13,53,.12);
  --radius:20px;
  --shadow:0 10px 30px rgba(2,13,53,.10);
  --hero-text:#dcdbdb;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"DM Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:1rem;line-height:1.6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden;overflow-wrap:break-word}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4,h5{margin:0 0 .6rem;line-height:1.2;font-weight:700}
h1{font-size:clamp(2rem,4.5vw,3.25rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2rem)}
h3{font-size:1.35rem}
h4{font-size:1.2rem}
p{margin:0 0 1rem}
ul{margin:0 0 1rem;padding-left:1.25rem}
sup{font-size:.55em;line-height:0}

/* ---------- layout helpers ---------- */
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 20px}
.section{margin-bottom:48px}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:1rem}.mb-4{margin-bottom:1.5rem}
.grid{display:grid;gap:24px}
.grid>*{min-width:0}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));align-items:center}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch}
.grid-split{grid-template-columns:minmax(0,2fr) minmax(0,1fr);align-items:center}
@media(max-width:900px){.grid-2,.grid-3,.grid-split{grid-template-columns:minmax(0,1fr)}}
.rounded{border-radius:var(--radius)}
.shadow{box-shadow:var(--shadow)}

/* ---------- nav ---------- */
.site-nav{position:sticky;top:0;z-index:500;background:linear-gradient(to bottom,var(--navy-800),var(--navy-700));box-shadow:0 2px 6px rgba(0,0,0,.35);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-inner{max-width:1400px;margin:0 auto;padding:0 20px;min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-brand img{height:45px;width:auto}
.nav-list{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:4px}
.nav-list>li{position:relative}
.nav-link{display:block;padding:10px 12px;color:rgba(255,255,255,.9);font-family:inherit;font-weight:600;font-size:.93rem;line-height:1.2;background:none;border:0;cursor:pointer;white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.55)}
.nav-link:hover,.nav-link:focus-visible{color:#fff;text-decoration:none}
.dd-toggle::after{content:"";display:inline-block;margin-left:6px;border:4px solid transparent;border-top-color:currentColor;vertical-align:-2px}
.dd-menu{display:none;position:absolute;right:0;top:100%;min-width:260px;background:#fff;border-radius:14px;box-shadow:0 18px 50px rgba(2,13,53,.25);padding:8px;z-index:10}
.dd-menu a{display:block;padding:10px 14px;border-radius:10px;color:var(--text);font-size:.93rem}
.dd-menu a:hover{background:var(--bg);text-decoration:none;color:var(--primary)}
.has-dd.open>.dd-menu{display:block}
@media(hover:hover) and (min-width:1200px){.has-dd:hover>.dd-menu,.has-dd:focus-within>.dd-menu{display:block}}
.btn-call{display:block;background:var(--warning);color:#212529;font-weight:700;font-size:.85rem;line-height:1.25;padding:7px 16px;border-radius:12px;margin-left:12px;text-align:left;white-space:nowrap}
.btn-call:hover{text-decoration:none;filter:brightness(.96)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px}
@media(max-width:1199px){
  .nav-toggle{display:flex}
  .nav-inner{flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  .nav-list{display:none;flex-direction:column;align-items:stretch;width:100%;gap:0;padding:8px 0 12px}
  .site-nav.nav-open .nav-list{display:flex}
  .nav-link{padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left;width:100%}
  .dd-menu{position:static;box-shadow:none;background:rgba(255,255,255,.06);padding:4px 0 4px 12px;border-radius:0}
  .dd-menu a{color:rgba(255,255,255,.9)}
  .dd-menu a:hover{background:transparent;color:#fff}
  .btn-call{margin:12px 0 0;text-align:center}
}

/* ---------- hero ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:rgba(0,123,255,.10);color:var(--navy-700);font-size:.8rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin-bottom:16px}
.hero-lennox{padding:56px 0 40px}
.hero-lennox h1{color:var(--primary)}
.hero-lennox .lead{font-size:1.2rem;color:#343a40;max-width:34ch}
.hero-img{border-radius:var(--radius);box-shadow:var(--shadow)}

/* page hero banner (for pages that use <header class="hero">) */
header.hero{position:relative;background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy-600) 40%,var(--navy-900) 100%);color:var(--hero-text);text-align:center;padding:5rem 1.5rem;overflow:hidden}
header.hero::before{content:"";position:absolute;left:-20%;top:0;width:140%;height:45%;background:linear-gradient(to bottom,rgba(255,255,255,.18),rgba(255,255,255,.02));opacity:.5;pointer-events:none}
header.hero h1,header.hero p{position:relative;z-index:1}
header.hero p{font-size:1.1rem;max-width:820px;margin:0 auto}
@media(max-width:576px){header.hero{padding:3.5rem 1.25rem}}

/* ---------- co-brand strip (Lennox dealer lockup) ---------- */
.cobrand{background:#fff;border-bottom:1px solid #e5e5e5;padding:28px 16px;text-align:center}
.cobrand-logos{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:32px}
.cobrand-logos img{height:56px;width:auto}
.cobrand-sep{width:1px;height:56px;background:#c8c8c8}
.cobrand p{margin:16px 0 0;color:#555;font-size:.95rem}
@media(max-width:520px){.cobrand-sep{display:none}.cobrand-logos{gap:20px}}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3,.card h4{margin-bottom:.4rem}
.card-tier{border-top:6px solid var(--muted);display:flex;flex-direction:column}
.card-tier.good{border-top-color:var(--success)}
.card-tier.better{border-top-color:var(--primary)}
.card-tier.best{border-top-color:var(--danger)}
.tier-label{font-size:1.25rem;font-weight:700;margin:0}
.good .tier-label{color:var(--success)}.better .tier-label{color:var(--primary)}.best .tier-label{color:var(--danger)}
.tier-series{color:var(--muted);font-size:1.05rem;margin:0 0 12px}
.card-feature{border-color:rgba(0,123,255,.45)}
.card h3.accent{color:var(--primary)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;max-width:100%;text-align:center;overflow-wrap:anywhere;border-radius:14px;background:var(--primary);color:#fff;font-family:inherit;font-weight:700;font-size:1rem;line-height:1;border:0;cursor:pointer;box-shadow:0 10px 24px rgba(0,123,255,.22);transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{background:var(--primary-dark);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--primary);border:1px solid var(--primary);box-shadow:none}
.btn-outline:hover{background:var(--primary);color:#fff}

/* ---------- footer ---------- */
footer{background:var(--footer);color:#fff;text-align:center;padding:28px 16px;margin-top:48px;font-size:.9rem;line-height:1.8}
footer a{color:var(--hero-text);text-decoration:underline}
footer a.footer-contact{color:cyan;font-weight:700}
footer img{margin:12px auto 0;max-width:150px;max-height:75px}

/* ---------- additional layout pieces ---------- */
.page{padding-top:48px}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));align-items:stretch}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.grid-4{grid-template-columns:minmax(0,1fr)}}
.top{align-items:start}
@media(min-width:901px){.d-second{order:2}}
@media(max-width:900px){.m-first{order:-1}}
.center{text-align:center}
.card-img{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card-photo{width:100%;height:190px;object-fit:cover}
.card-body{padding:22px}
.card-title{font-size:1.1rem;font-weight:700;margin-bottom:.5rem}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--primary);text-decoration:none}
.card-text{margin:0;color:#343a40}
.link-strong{font-weight:700}
.btn-warning{background:var(--warning);color:#212529;box-shadow:0 10px 24px rgba(255,193,7,.25)}
.btn-warning:hover{background:#e0a800;color:#212529}
.cta-band{background:linear-gradient(135deg,var(--navy-700),var(--primary));color:#fff;border-radius:var(--radius);padding:clamp(24px,5vw,48px);text-align:center;box-shadow:var(--shadow)}
.cta-band h2{color:#fff}
.cta-band p{max-width:70ch;margin-left:auto;margin-right:auto}
.cta-link{color:#fff;font-weight:700;text-decoration:underline}
.prose{max-width:860px}
.prose h2{margin-top:0}
.prose h3{margin-top:1.5rem;font-size:1.2rem}
.prose ol{padding-left:1.4rem;margin:0 0 1rem}
.prose li{margin-bottom:.4rem}
.prose img{margin:0 auto}

/* ====================================================================
   Page vocabulary (generated pages use these names; no Bootstrap)
   ==================================================================== */
/* spacing: m|p + t|b|l|r|x|y + 0-5  ->  0, .25, .5, 1, 1.5, 3rem */
.mt0{margin-top:0}.mt1{margin-top:.25rem}.mt2{margin-top:.5rem}.mt3{margin-top:1rem}.mt4{margin-top:1.5rem}.mt5{margin-top:3rem}
.mb0{margin-bottom:0}.mb1{margin-bottom:.25rem}.mb2{margin-bottom:.5rem}.mb3{margin-bottom:1rem}.mb4{margin-bottom:1.5rem}.mb5{margin-bottom:3rem}
.my0{margin-block:0}.my1{margin-block:.25rem}.my2{margin-block:.5rem}.my3{margin-block:1rem}.my4{margin-block:1.5rem}.my5{margin-block:3rem}
.ml2{margin-left:.5rem}.ml3{margin-left:1rem}.mr2{margin-right:.5rem}.mr3{margin-right:1rem}
.pb2{padding-bottom:.5rem}.pl3{padding-left:1rem}.pt5{padding-top:3rem}
.p0{padding:0}.p3{padding:1rem}.p4{padding:1.5rem}
.m0{margin:0}
.mt-auto{margin-top:auto}
.sec{margin:0}
.sec.mb5,.grid.mb5{margin-bottom:3rem}

/* grids */
.grid{display:grid;gap:24px}
.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols-3r{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.cols-7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.cols-5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.cols-8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.cols-4-8{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
.cols-auto{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.vc{align-items:center}
.span-all{grid-column:1/-1}
.grid>div>.card:only-child,.grid>div>.card-x:only-child{height:100%}
@media(max-width:1100px){.cols-4,.cols-3r{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.cols-2,.cols-3,.cols-7-5,.cols-5-7,.cols-8-4,.cols-4-8{grid-template-columns:minmax(0,1fr)}}
@media(max-width:600px){.cols-4,.cols-3r{grid-template-columns:minmax(0,1fr)}}
.m1{order:1}.m2{order:2}
@media(min-width:901px){.d1{order:1}.d2{order:2}}
.narrow{max-width:960px;margin-inline:auto;width:100%}
.narrow-sm{max-width:760px;margin-inline:auto;width:100%}
.flex{display:flex}.flex-col{flex-direction:column}.relative{position:relative}
.w100{width:100%}.w75{width:75%;margin-inline:auto}

/* type + color */
.bold{font-weight:700}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.lead{font-size:1.2rem;font-weight:400;color:#343a40}
.underline{text-decoration:underline}
.c-primary{color:var(--primary)}.c-danger{color:var(--danger)}.c-success{color:var(--success)}.c-warning{color:#b8860b}.c-secondary{color:var(--muted)}.c-white{color:#fff}.c-dark{color:#212529}
.fs-2{font-size:clamp(1.5rem,3vw,2rem)}.fs-3{font-size:1.3rem}.fs-4{font-size:1.2rem}.fs-5{font-size:1.1rem}
.display{font-size:clamp(2rem,5vw,3.25rem);line-height:1.15;font-weight:700}
.display-sm{font-size:clamp(1.75rem,4vw,2.5rem);line-height:1.2;font-weight:700}
.plain{list-style:none;padding:0}
.rule-b{border-bottom:2px solid var(--line);padding-bottom:.5rem}
.bg-soft{background:var(--bg)}.bg-white{background:#fff}
.link-strong{font-weight:700}
.quote{background:#fff;border-left:4px solid var(--primary);padding:1rem 1.25rem;border-radius:0 12px 12px 0}
.band{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(24px,4vw,48px);margin-bottom:3rem}
.pad{padding:1.25rem}

/* cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card-x{padding:0;overflow:hidden}
.card-body{padding:22px}
.card-head{padding:14px 22px;background:var(--bg);border-bottom:1px solid var(--line);font-weight:700}
.card-photo{width:100%;height:190px;object-fit:cover}
.card-title{font-size:1.1rem;font-weight:700;margin-bottom:.5rem}
.card-title a{color:var(--text)}.card-title a:hover{color:var(--primary);text-decoration:none}
.card-sub{color:var(--muted);margin-bottom:.5rem}
.card-text{margin:0;color:#343a40}
.card-primary{border-top:6px solid var(--primary)}.card-success{border-top:6px solid var(--success)}.card-danger{border-top:6px solid var(--danger)}
.card-x.card-body,.card>.card-body{}
.card .card-body{padding:22px}
.card-x>.card-body{padding:22px}
.product-card .card-body{display:flex;flex-direction:column;height:100%}

/* buttons */
.btn-sm{min-height:36px;padding:0 14px;font-size:.9rem;border-radius:10px}
.btn-lg{min-height:54px;padding:0 30px;font-size:1.1rem}
.btn-warning{background:var(--warning);color:#212529;box-shadow:0 10px 24px rgba(255,193,7,.25)}
.btn-warning:hover{background:#e0a800;color:#212529}
a.btn{margin-bottom:.25rem}

/* notices + tags */
.notice{padding:14px 18px;border-radius:14px;border:1px solid transparent;margin-bottom:1rem}
.notice-success{background:#d4edda;color:#155724;border-color:#c3e6cb}
.notice-danger{background:#f8d7da;color:#721c24;border-color:#f5c6cb}
.notice-info{background:#d1ecf1;color:#0c5460;border-color:#bee5eb}
.tag{display:inline-block;padding:.25em .7em;border-radius:999px;font-size:.78rem;font-weight:700;background:var(--muted);color:#fff}
.tag-primary{background:var(--primary)}.tag-success{background:var(--success)}.tag-warning{background:var(--warning);color:#212529}
.tag-pill{letter-spacing:.03em}

/* lists */
.inline-list{list-style:none;padding:0;margin:0 0 1rem;display:flex;flex-wrap:wrap;gap:.5rem 1.25rem}
.inline-list.center{justify-content:center}
.list{list-style:none;padding:0;margin:0 0 1rem;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.list li{padding:12px 18px;border-bottom:1px solid var(--line)}
.list li:last-child{border-bottom:0}

/* forms */
.field{margin-bottom:1rem}
.field label{display:block;font-weight:600;margin-bottom:.35rem}
.input{display:block;width:100%;min-height:46px;padding:10px 14px;font:inherit;color:var(--text);background:#fff;border:1px solid #ced4da;border-radius:12px}
textarea.input{min-height:120px;resize:vertical}
.input:focus{outline:2px solid rgba(0,123,255,.35);border-color:var(--primary)}

/* tables */
.table-wrap{overflow-x:auto;margin-bottom:1rem}
table.data{width:100%;border-collapse:collapse;background:#fff}
table.data th,table.data td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
table.data thead th{background:var(--bg)}
table.data tbody tr:nth-child(odd){background:rgba(2,13,53,.03)}

/* FAQ accordion (details/summary, no JS) */
.faq-list{margin-bottom:1.5rem}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:16px 20px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--primary)}
.faq-item[open] summary::after{content:"\2212"}
.faq-body{padding:0 20px 18px}

/* page + CTA */
.page{padding:48px 0 0}
.cta-band{background:linear-gradient(135deg,var(--navy-700),var(--primary));color:#fff;border-radius:var(--radius);padding:clamp(24px,5vw,48px);text-align:center;box-shadow:var(--shadow)}
.cta-band h1,.cta-band h2,.cta-band h3,.cta-band p{color:#fff}
.cta-band p{max-width:70ch;margin-left:auto;margin-right:auto}
.cta-link{color:#fff;font-weight:700;text-decoration:underline}

/* nav active page */
.nav-link[aria-current="page"],.dd-menu a[aria-current="page"]{color:#fff;box-shadow:inset 0 -3px 0 var(--warning)}
.dd-menu a[aria-current="page"]{color:var(--primary);box-shadow:none;background:var(--bg)}
img{border-radius:0}
.rounded{border-radius:var(--radius)}
.shadow{box-shadow:var(--shadow)}

#vanity-form{margin-top:25px}
/* hub cards: equal height, CTA pinned to bottom */
.hub{align-items:stretch}
.hub>div{display:flex}
.hub>div>.card-x{width:100%;display:flex;flex-direction:column}
.hub .card-body{flex:1;display:flex;flex-direction:column}
.hub .card-text{flex:1;margin-bottom:18px}
.hub .btn{margin-top:auto;align-self:flex-start}
/* scaled-down feature image */
.img-sm{width:100%;max-width:340px;margin-inline:auto}
.hub{margin-bottom:48px}
header.hero .lead{color:inherit;font-weight:400}

/* Google reviews block */
.g-stars{color:#f5a623;font-size:1.15rem;letter-spacing:2px;margin-bottom:8px}
.g-author{display:flex;align-items:center;gap:10px;margin:14px 0 10px;font-size:.9rem}
.g-author img{width:32px;height:32px;border-radius:50%}
.g-author small{color:var(--muted)}
#gInner[hidden]{display:none}