/* =========================================================
   Tankless Water Heater Austin — stylesheet
   Colours are injected from config.json at build time.
   ========================================================= */

:root{
  --primary:#0E3B5C;
  --primary-dark:#0A2C45;
  --accent:#E2611A;
  --accent-dark:#C24F10;
  --ink:#12212e;
  --body:#40525f;
  --muted:#6a7b89;
  --line:#e2e9ef;
  --soft:#f4f8fa;
  --white:#fff;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 1px 2px rgba(16,33,46,.05),0 8px 24px rgba(16,33,46,.07);
  --shadow-lg:0 2px 4px rgba(16,33,46,.06),0 18px 44px rgba(16,33,46,.13);
  --wrap:1160px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
[id]{scroll-margin-top:96px}
body{
  margin:0;font-family:var(--font);color:var(--body);background:var(--white);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 .6em;font-weight:700;letter-spacing:-.015em}
h1{font-size:clamp(2rem,1.35rem + 2.6vw,3.05rem)}
h2{font-size:clamp(1.5rem,1.2rem + 1.3vw,2.15rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
li{margin-bottom:.45em}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.narrow{max-width:820px}
.section{padding:clamp(3rem,2rem + 4vw,5.5rem) 0}
.section--soft{background:var(--soft)}
.section--line{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;color:var(--accent);margin-bottom:.7rem
}
.lead{font-size:1.12rem;color:var(--body)}
.center{text-align:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:.7rem 1.1rem;z-index:200}
.skip-link:focus{left:8px;top:8px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.92rem 1.5rem;border-radius:var(--radius-sm);font-weight:700;font-size:1rem;
  border:2px solid transparent;cursor:pointer;transition:.16s ease;text-align:center;line-height:1.2
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--accent{background:var(--accent);color:#fff}
.btn--accent:hover{background:var(--accent-dark);color:#fff}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-dark);color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn--outline{background:#fff;color:var(--primary);border-color:var(--line)}
.btn--outline:hover{border-color:var(--primary);color:var(--primary)}
.btn--block{width:100%}
.btn--lg{padding:1.05rem 1.8rem;font-size:1.06rem}

/* ---------- header ---------- */
.topbar{background:var(--primary-dark);color:rgba(255,255,255,.85);font-size:.86rem}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:1rem;min-height:38px;flex-wrap:wrap}
.topbar a{color:#fff;font-weight:600}
.topbar span{display:inline-flex;align-items:center;gap:.4rem}
@media (max-width:700px){.topbar span:first-child{display:none}.topbar .wrap{justify-content:center}}

.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;color:var(--ink);font-size:1.06rem;letter-spacing:-.02em;line-height:1.15}
.logo:hover{text-decoration:none}
.logo-mark svg{width:20px;height:20px;display:block}
.logo-mark{
  width:38px;height:38px;border-radius:10px;flex:0 0 38px;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;color:#fff
}
.logo small{display:block;font-size:.72rem;font-weight:600;color:var(--muted);letter-spacing:.02em}

.nav{display:flex;align-items:center;gap:1.35rem}
.nav a{color:var(--ink);font-weight:600;font-size:.95rem}
.nav a:hover,.nav a[aria-current="page"]{color:var(--accent);text-decoration:none}
.nav-cta{display:flex;align-items:center;gap:.8rem}
.nav-phone{font-weight:800;color:var(--primary);white-space:nowrap}

.nav-toggle{
  display:none;background:none;border:1px solid var(--line);border-radius:8px;
  padding:.5rem .6rem;cursor:pointer;color:var(--ink)
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}

@media (max-width:1000px){
  .nav{
    position:fixed;inset:76px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:.5rem 22px 1.2rem;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    display:none
  }
  .nav.open{display:flex}
  .nav a{padding:.85rem 0;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block}
  .nav-phone{display:none}
}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--primary-dark);color:#fff;overflow:hidden}
.hero-media{position:absolute;inset:0;background:linear-gradient(135deg,var(--primary-dark),var(--primary) 55%,#1b5f86)}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.62}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,32,50,.90) 0%,rgba(8,32,50,.70) 48%,rgba(8,32,50,.30) 100%)
}
.hero-inner{position:relative;z-index:2;padding-top:clamp(3rem,2rem + 5vw,6rem);padding-bottom:clamp(3rem,2rem + 5vw,6rem)}
.hero h1{color:#fff;max-width:16ch}
.hero--page h1{max-width:22ch}
.hero p{color:rgba(255,255,255,.9);font-size:1.1rem;max-width:56ch}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:start}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.hero-trust{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;margin-top:2rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.18)}
.hero-trust li{list-style:none;color:rgba(255,255,255,.88);font-size:.9rem;font-weight:600;display:flex;align-items:center;gap:.45rem}
.hero-trust ul{display:contents}
.hero-trust{padding-left:0}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:2rem}}

/* ---------- quote card ---------- */
.quote-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:1.6rem;color:var(--body)}
.quote-card h2{font-size:1.28rem;margin-bottom:.25rem}
.quote-card .sub{font-size:.92rem;color:var(--muted);margin-bottom:1.1rem}
.field{margin-bottom:.85rem}
.field label{display:block;font-size:.85rem;font-weight:700;color:var(--ink);margin-bottom:.3rem}
.field input,.field select,.field textarea{
  width:100%;padding:.78rem .9rem;border:1px solid var(--line);border-radius:var(--radius-sm);
  font:inherit;font-size:.97rem;color:var(--ink);background:#fff
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.field textarea{min-height:96px;resize:vertical}
.form-note{font-size:.79rem;color:var(--muted);margin:.7rem 0 0}
.hp{position:absolute!important;left:-9999px!important;opacity:0;height:0;width:0}

/* ---------- generic grid + cards ---------- */
.grid{display:grid;gap:1.4rem}
.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:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.18s ease
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card-media{
  position:relative;aspect-ratio:16/9;
  background:linear-gradient(135deg,var(--primary),#1b5f86 70%,var(--accent))
}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:1.25rem 1.35rem 1.5rem;display:flex;flex-direction:column;flex:1}
.card-body h3{margin-bottom:.4rem}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--accent);text-decoration:none}
.card-body p{font-size:.96rem;margin-bottom:1rem}
.card-link{margin-top:auto;font-weight:700;color:var(--accent);font-size:.94rem}
.card-link::after{content:" \2192"}

.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}
.feature h3{font-size:1.08rem;margin-bottom:.45rem}
.feature p{font-size:.96rem;margin:0}
.feature .num{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;
  background:var(--soft);color:var(--primary);font-weight:800;margin-bottom:.9rem;border:1px solid var(--line)
}

/* ---------- media + text split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,1rem + 3vw,3.5rem);align-items:center}
.split--rev .split-media{order:2}
@media (max-width:900px){.split{grid-template-columns:1fr}.split--rev .split-media{order:0}}
.split-media{
  border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
  background:linear-gradient(135deg,var(--primary),#1b5f86 70%,var(--accent));box-shadow:var(--shadow)
}
.split-media img{width:100%;height:100%;object-fit:cover}

/* ---------- checklist ---------- */
.checklist{list-style:none;padding:0;margin:0 0 1.2rem}
.checklist li{position:relative;padding-left:1.9rem;margin-bottom:.7rem}
.checklist li::before{
  content:"";position:absolute;left:0;top:.42em;width:1.05rem;height:1.05rem;border-radius:50%;
  background:var(--accent);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z' fill='%23fff'/%3E%3C/svg%3E") center/1.05rem no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z' fill='%23fff'/%3E%3C/svg%3E") center/1.05rem no-repeat;
}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;min-width:460px;font-size:.98rem}
th,td{text-align:left;padding:.95rem 1.15rem;border-bottom:1px solid var(--line)}
th{background:var(--soft);color:var(--ink);font-weight:700;font-size:.88rem;letter-spacing:.02em}
tr:last-child td{border-bottom:0}
td:last-child{white-space:nowrap;font-weight:700;color:var(--ink)}
.table-note{font-size:.86rem;color:var(--muted);margin-top:.8rem}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{
  cursor:pointer;padding:1.15rem 3rem 1.15rem 1.35rem;font-weight:700;color:var(--ink);
  position:relative;list-style:none;font-size:1.02rem
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:1.3rem;top:50%;transform:translateY(-50%);
  font-size:1.4rem;color:var(--accent);font-weight:400;line-height:1
}
.faq details[open] summary::after{content:"\2212"}
.faq summary:hover{background:var(--soft)}
.faq .answer{padding:0 1.35rem 1.3rem;font-size:.99rem}
.faq .answer p:last-child{margin-bottom:0}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:.86rem;color:var(--muted);padding:1rem 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:0}
.crumbs li::after{content:"/";margin-left:.4rem;color:var(--line)}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--muted)}

/* ---------- cta band ---------- */
.cta-band{background:var(--primary);color:#fff;border-radius:var(--radius);padding:clamp(1.8rem,1rem + 3vw,3rem);text-align:center}
.cta-band h2{color:#fff;margin-bottom:.5rem}
.cta-band p{color:rgba(255,255,255,.88);max-width:60ch;margin:0 auto 1.5rem}
.cta-actions{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}

/* ---------- pills ---------- */
.pills{display:flex;flex-wrap:wrap;gap:.55rem;list-style:none;padding:0;margin:0}
.pills a{
  display:inline-block;padding:.5rem .95rem;border:1px solid var(--line);border-radius:999px;
  background:#fff;font-size:.92rem;font-weight:600;color:var(--ink)
}
.pills a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.72);margin-top:0;padding:3.5rem 0 0;font-size:.95rem}
.site-footer h4{color:#fff;font-size:.95rem;letter-spacing:.05em;text-transform:uppercase;margin-bottom:1rem}
.site-footer a{color:rgba(255,255,255,.82)}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:2.5rem}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:2rem}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.55rem}
.footer-brand .logo{color:#fff}
.footer-brand .logo small{color:rgba(255,255,255,.6)}
.footer-phone{font-size:1.3rem;font-weight:800;color:#fff;display:inline-block;margin:.4rem 0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:3rem;padding:1.4rem 0 5.5rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.86rem
}
@media (min-width:761px){.footer-bottom{padding-bottom:1.4rem}}

/* ---------- mobile call bar ---------- */
.call-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:120;display:none;
  background:#fff;border-top:1px solid var(--line);padding:.6rem .8rem;gap:.6rem;
  box-shadow:0 -4px 18px rgba(16,33,46,.1)
}
.call-bar .btn{flex:1;padding:.8rem .6rem;font-size:.95rem}
@media (max-width:760px){.call-bar{display:flex}}

/* ---------- misc ---------- */
.page-intro{padding:clamp(2.4rem,1.6rem + 3vw,4rem) 0 0}
.stack > * + *{margin-top:1.1em}
.note{
  background:var(--soft);border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:1.1rem 1.3rem;font-size:.97rem
}
.note p:last-child{margin-bottom:0}
.img-frame{
  border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9;box-shadow:var(--shadow);
  background:linear-gradient(135deg,var(--primary),#1b5f86 70%,var(--accent))
}
.img-frame img{width:100%;height:100%;object-fit:cover}
.alert{background:#fff4ec;border:1px solid #f6d2b8;border-radius:var(--radius-sm);padding:1rem 1.2rem;margin-bottom:1.4rem;font-size:.97rem}
.alert--ok{background:#eef8f1;border-color:#c6e6d1}