/* ============================================================
   Denver Water Heater Service Center — Sherrelwood
   Design system: pipe-iron slate + copper + pilot-light amber
   ============================================================ */

:root{
  --iron:#1B2A38;
  --iron-2:#233647;
  --copper:#C4713A;
  --copper-dark:#9C572B;
  --amber:#F0A93A;
  --steel:#ECEEEA;
  --steel-2:#DEE2DD;
  --ink:#1F2933;
  --ink-soft:#4B5563;
  --teal:#3E5C4E;
  --white:#FFFFFF;
  --line: rgba(196,113,58,0.35);
  --radius: 3px;
  --maxw: 1140px;
  --font-head: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", Arial, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--steel);
  line-height:1.6;
  font-size:17px;
}
img,svg{max-width:100%;display:block;}
a{color:var(--copper-dark);text-decoration:none;}
a:hover{text-decoration:underline;}
h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:700;
  letter-spacing:0.01em;
  line-height:1.12;
  color:var(--iron);
  margin:0 0 0.5em;
}
h1{font-size:clamp(2.1rem,5vw,3.4rem);}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem);}
h3{font-size:1.35rem;}
p{margin:0 0 1.1em;max-width:70ch;}
ul,ol{margin:0 0 1.2em;padding-left:1.3em;}
li{margin-bottom:0.5em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute;left:-9999px;}

:focus-visible{outline:3px solid var(--amber);outline-offset:2px;}

/* ---------- Blueprint grid texture ---------- */
.blueprint{
  background-color:var(--iron);
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size:34px 34px;
}

/* ---------- Top bar ---------- */
.topbar{
  background:var(--iron);
  color:var(--steel-2);
  font-size:0.86rem;
}
.topbar .container{
  display:flex;justify-content:space-between;align-items:center;
  padding:7px 24px;flex-wrap:wrap;gap:6px;
}
.topbar a{color:var(--amber);}
.topbar .tb-nap{color:var(--steel-2);}

/* ---------- Header / nav ---------- */
header.site-header{
  background:var(--white);
  border-bottom:3px solid var(--copper);
  position:sticky;top:0;z-index:50;
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;max-width:var(--maxw);margin:0 auto;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand .gauge-mark{width:42px;height:42px;flex-shrink:0;}
.brand-text{font-family:var(--font-head);line-height:1.05;}
.brand-text .b1{font-size:1.28rem;font-weight:700;color:var(--iron);display:block;}
.brand-text .b2{font-size:0.82rem;color:var(--copper-dark);letter-spacing:0.03em;display:block;}
nav.main-nav{display:flex;align-items:center;gap:22px;}
nav.main-nav a{
  color:var(--ink);font-weight:600;font-size:0.96rem;
  font-family:var(--font-head);letter-spacing:0.01em;
}
nav.main-nav a:hover{color:var(--copper-dark);text-decoration:none;}
.has-drop{position:relative;}
.dropdown{
  display:none;position:absolute;top:100%;left:0;background:var(--white);
  border:1px solid var(--steel-2);border-top:3px solid var(--copper);
  min-width:280px;padding:10px 0;box-shadow:0 10px 24px rgba(0,0,0,0.12);
  z-index:60;
}
.has-drop:hover .dropdown, .has-drop:focus-within .dropdown{display:block;}
.dropdown a{
  display:block;padding:8px 18px;font-size:0.9rem;font-weight:500;
  color:var(--ink);font-family:var(--font-body);
}
.dropdown a:hover{background:var(--steel);color:var(--copper-dark);}
.nav-cta{
  display:flex;align-items:center;gap:14px;
}
.phone-btn{
  background:var(--copper);color:var(--white);
  padding:10px 18px;border-radius:var(--radius);font-weight:700;
  font-family:var(--font-head);font-size:1.02rem;white-space:nowrap;
}
.phone-btn:hover{background:var(--copper-dark);text-decoration:none;}
.menu-toggle{display:none;background:none;border:2px solid var(--iron);border-radius:var(--radius);padding:8px 10px;font-size:1.3rem;line-height:1;}

@media (max-width:920px){
  nav.main-nav{
    display:none;flex-direction:column;align-items:flex-start;gap:2px;
    position:absolute;top:100%;left:0;right:0;background:var(--white);
    border-top:3px solid var(--copper);padding:10px 24px 18px;box-shadow:0 12px 20px rgba(0,0,0,0.1);
  }
  nav.main-nav.open{display:flex;}
  nav.main-nav a{padding:9px 0;width:100%;}
  .dropdown{position:static;border:none;box-shadow:none;padding-left:12px;min-width:0;display:block;}
  .has-drop:hover .dropdown{display:block;}
  .menu-toggle{display:inline-flex;}
  .nav-cta .phone-text{display:none;}
}

/* ---------- Hero ---------- */
.hero{
  color:var(--white);position:relative;overflow:hidden;
  padding:64px 0 60px;
}
.hero .container{display:grid;grid-template-columns:1.15fr 0.85fr;gap:40px;align-items:center;}
.hero-eyebrow{color:var(--amber);font-family:var(--font-head);font-weight:600;font-size:1rem;letter-spacing:0.02em;margin-bottom:8px;}
.hero h1{color:var(--white);}
.hero p.lead{color:var(--steel-2);font-size:1.14rem;max-width:52ch;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px;}
.btn{
  display:inline-block;padding:13px 24px;border-radius:var(--radius);
  font-family:var(--font-head);font-weight:700;font-size:1.02rem;
  border:2px solid transparent;
}
.btn-primary{background:var(--amber);color:var(--iron);}
.btn-primary:hover{background:#e59a26;text-decoration:none;}
.btn-ghost{background:transparent;color:var(--white);border-color:var(--steel-2);}
.btn-ghost:hover{background:rgba(255,255,255,0.08);text-decoration:none;}
.hero-badges{display:flex;gap:18px;margin-top:26px;flex-wrap:wrap;font-size:0.88rem;color:var(--steel-2);}
.hero-badges span{border-left:3px solid var(--copper);padding-left:10px;}
.hero-gauge{justify-self:center;}

/* small page header (non-home pages) */
.page-hero{
  color:var(--white);padding:46px 0 38px;
}
.page-hero .container{max-width:900px;}
.page-hero .breadcrumb{font-size:0.86rem;color:var(--steel-2);margin-bottom:10px;}
.page-hero .breadcrumb a{color:var(--amber);}
.page-hero h1{color:var(--white);margin-bottom:6px;}
.page-hero .lead{color:var(--steel-2);font-size:1.08rem;}

/* ---------- Sections ---------- */
section{padding:56px 0;}
section.alt{background:var(--white);}
.section-head{max-width:680px;margin-bottom:30px;}
.section-head .kicker{color:var(--copper-dark);font-family:var(--font-head);font-weight:700;font-size:0.98rem;}

/* grid utilities */
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:820px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

/* panels (flat, no rounded-card cliché) */
.panel{
  background:var(--white);border:1px solid var(--steel-2);
  border-left:4px solid var(--copper);padding:26px 24px;
}
.panel h3{margin-bottom:8px;}
.panel .icon{width:40px;height:40px;margin-bottom:14px;}

/* service list on hub */
.service-row{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--steel-2);
}
.service-row .icon{width:46px;height:46px;}
.service-row h3{margin-bottom:4px;}
.service-row a.more{font-family:var(--font-head);font-weight:700;color:var(--copper-dark);white-space:nowrap;align-self:center;}
@media(max-width:640px){
  .service-row{grid-template-columns:44px 1fr;}
  .service-row a.more{grid-column:2;}
}

/* process / numbered steps (true sequences only) */
.steps{list-style:none;padding:0;margin:0;counter-reset:step;}
.steps li{
  counter-increment:step;position:relative;padding:0 0 26px 56px;
  border-left:2px solid var(--line);margin-left:20px;
}
.steps li:last-child{border-left-color:transparent;padding-bottom:0;}
.steps li::before{
  content:counter(step);position:absolute;left:-20px;top:0;
  width:40px;height:40px;background:var(--iron);color:var(--amber);
  font-family:var(--font-head);font-weight:700;font-size:1.1rem;
  border-radius:50%;display:flex;align-items:center;justify-content:center;
}

/* FAQ accordion (native details) */
details.faq{border-bottom:1px solid var(--steel-2);padding:14px 0;}
details.faq summary{
  font-family:var(--font-head);font-weight:700;font-size:1.08rem;
  cursor:pointer;color:var(--iron);list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{content:"+";color:var(--copper);font-size:1.6rem;line-height:1;}
details.faq[open] summary::after{content:"–";}
details.faq p{margin-top:10px;color:var(--ink-soft);}

/* CTA band */
.cta-band{background:var(--teal);color:var(--white);padding:44px 0;}
.cta-band .container{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;}
.cta-band h2{color:var(--white);margin-bottom:4px;font-size:1.7rem;}
.cta-band p{color:#DDE7E2;margin-bottom:0;}

/* table (specs / comparisons) */
table.compare{width:100%;border-collapse:collapse;margin:20px 0;font-size:0.95rem;}
table.compare th,table.compare td{border:1px solid var(--steel-2);padding:10px 12px;text-align:left;}
table.compare th{background:var(--iron);color:var(--white);font-family:var(--font-head);}
table.compare tr:nth-child(even){background:#F5F6F3;}

/* service area chips */
.area-list{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0;}
.area-list span{
  background:var(--white);border:1px solid var(--steel-2);border-left:3px solid var(--copper);
  padding:7px 14px;font-size:0.92rem;font-weight:600;font-family:var(--font-head);
}

/* blog cards */
.post-card{border:1px solid var(--steel-2);padding:22px;background:var(--white);}
.post-card .meta{font-size:0.82rem;color:var(--copper-dark);font-family:var(--font-head);font-weight:700;margin-bottom:6px;}

/* reviews */
.review{background:var(--white);border:1px solid var(--steel-2);padding:20px;}
.review .stars{color:var(--amber);letter-spacing:2px;margin-bottom:8px;}
.review .who{font-family:var(--font-head);font-weight:700;margin-top:10px;}

/* footer */
footer.site-footer{background:var(--iron);color:var(--steel-2);padding:50px 0 22px;}
footer.site-footer h4{color:var(--white);font-size:1rem;margin-bottom:14px;}
footer.site-footer a{color:var(--steel-2);}
footer.site-footer a:hover{color:var(--amber);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid ul{list-style:none;padding:0;margin:0;}
.footer-grid li{margin-bottom:8px;font-size:0.92rem;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,0.12);margin-top:34px;padding-top:18px;
  font-size:0.82rem;color:#9AA6AE;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
}

/* Netlify form */
form.contact-form{max-width:640px;}
form.contact-form label{display:block;font-family:var(--font-head);font-weight:700;margin:14px 0 6px;}
form.contact-form input,form.contact-form textarea,form.contact-form select{
  width:100%;padding:11px 12px;border:1px solid var(--steel-2);font-family:var(--font-body);font-size:1rem;
  border-radius:var(--radius);
}
form.contact-form textarea{min-height:120px;}
form.contact-form .btn-primary{margin-top:18px;border:none;cursor:pointer;}

@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto !important; transition:none !important; animation:none !important;}
}