/* Water Heater Installation Seagoville TX - stylesheet v2 (premium redesign)
   Mobile-first, no frameworks, no external fonts, tiny vanilla JS only
   (reveal-on-scroll + floating-pill hide, both reduced-motion safe).
   Navy #0C2D4D + Water blue #1B9BD8 + Flame orange #F97316.
   Breakpoint map:
     base    <480px   compact brand mark only, call pill + hamburger in header, sticky bottom call bar
     480px   roomier gutters
     600px   stacked brand text joins the mark
     640px   2-column grids, trust strip 2 columns
     768px   topbar shows, tablet header and type
     900px   hero image shifts to a side gradient, two-column content rows
     1024px  3-column grids, trust strip 4 columns, wide footer
     1200px  desktop: inline nav joins the header row, hamburger hides
     1280px  floating call pill replaces the sticky bottom bar
*/
:root{
  --navy:#0C2D4D; --navy-dark:#082138; --navy-mid:#14456e;
  --water:#1B9BD8; --water-dark:#1477A8; --water-light:#8fd0f0;
  --flame:#F97316; --flame-dark:#EA580C; --flame-soft:#fff1e6;
  --ink:#1c2b3a; --muted:#52657a; --line:#dbe4ee; --line-soft:#e6edf4;
  --bg:#ffffff; --bg-soft:#f3f7fb; --bg-tint:#eaf2f9; --bg-warm:#eef7fd;
  --radius:18px; --radius-sm:12px;
  --shadow:0 10px 30px rgba(12,45,77,.10);
  --shadow-lg:0 20px 44px rgba(12,45,77,.16);
  --shadow-card:0 4px 16px rgba(12,45,77,.07);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{overflow-x:clip}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.7;color:var(--ink);background:var(--bg);-webkit-text-size-adjust:100%;padding-bottom:78px}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--navy-mid);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--water-dark)}
h1,h2,h3{color:var(--navy);line-height:1.15;margin:0 0 .55em;font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,6vw,3.9rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.35rem);margin-top:0}
h3{font-size:1.16rem;letter-spacing:-.01em}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--water);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}
.section{padding:64px 0}
.section--soft{background:var(--bg-soft)}
.section--tint{background:var(--bg-tint)}
.section--navy{background:radial-gradient(640px 320px at 88% 0%,rgba(27,155,216,.28),transparent 60%),radial-gradient(520px 280px at 8% 100%,rgba(249,115,22,.16),transparent 60%),linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 80%);color:#eaf2f9}
.section--navy h1,.section--navy h2,.section--navy h3{color:#fff}
.section-head{max-width:780px;margin-bottom:34px}
.section-head p{color:var(--muted);font-size:1.06rem}
.section--navy .section-head p{color:#c6d7e8}
.section-head h2::after{content:"";display:block;width:54px;height:4px;background:var(--flame);border-radius:2px;margin-top:16px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--water-dark);margin-bottom:12px}
.section--navy .eyebrow{color:var(--water-light)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Buttons - Call only. Every button: nowrap + never crushed by flex. */
.btn-call{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:14px 26px;background:linear-gradient(180deg,#fb8a2e,var(--flame));color:#fff;font-weight:800;font-size:1.05rem;text-decoration:none;border-radius:999px;box-shadow:0 8px 22px rgba(249,115,22,.42);transition:transform .15s ease,box-shadow .15s ease,background .15s ease;white-space:nowrap;flex:0 0 auto;max-width:100%}
.btn-call:hover{background:linear-gradient(180deg,var(--flame),var(--flame-dark));color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(249,115,22,.48)}
.btn-call:active{transform:scale(.98)}
.btn-call .phone-ic{width:20px;height:20px;flex:0 0 auto}
.btn-call--lg{min-height:60px;padding:16px 32px;font-size:1.14rem}
.btn-call--white{background:#fff;color:var(--navy);box-shadow:0 8px 22px rgba(0,0,0,.25)}
.btn-call--white:hover{background:var(--bg-warm);color:var(--navy)}
.btn-link{display:inline-flex;align-items:center;min-height:48px;font-weight:700}

/* Slim topbar: hours + city, desktop only. */
.topbar{display:none;background:var(--navy-dark);color:#c6d7e8;font-size:.84rem}
.topbar-in{display:flex;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px}
.topbar a{color:#fff;font-weight:700;text-decoration:none}
.topbar a:hover{text-decoration:underline}

/* Header: logo + call pill + hamburger share the row below 1200px.
   Inline nav only joins the row at 1200px and up. */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(12,45,77,.07)}
.header-in{display:flex;align-items:center;gap:10px;min-height:64px;padding-top:8px;padding-bottom:8px;flex-wrap:nowrap}
.brand{flex:0 1 auto;min-width:0;display:flex;align-items:center;text-decoration:none}
.brand-full{display:none}
.brand-compact{display:flex;align-items:center;gap:8px;min-width:0}
.brand-compact img{width:40px;height:40px;flex:0 0 auto}
.brand-compact-text{display:none;line-height:1.15;color:var(--navy)}
.brand-compact-text strong{display:block;font-size:.8rem;font-weight:800;white-space:nowrap}
.brand-compact-text small{display:block;font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--water-dark);white-space:nowrap}
.header-call{margin-left:auto;min-height:48px;padding:10px 18px;font-size:.95rem;gap:8px}
.header-call .phone-ic{width:18px;height:18px}
.main-nav{display:none}
.menu{position:relative;margin-left:2px;flex:0 0 auto}
.menu summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;min-width:48px;min-height:48px;padding:10px;border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--navy);font-weight:700;background:#fff;white-space:nowrap}
.menu summary::-webkit-details-marker{display:none}
.menu summary:hover{border-color:var(--navy)}
.menu-panel{position:absolute;right:0;top:calc(100% + 10px);width:min(300px,86vw);background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px;z-index:80}
.menu-panel ul{list-style:none;margin:0;padding:0}
.menu-panel a{display:flex;align-items:center;min-height:48px;padding:10px 14px;text-decoration:none;font-weight:600;color:var(--navy);border-radius:var(--radius-sm)}
.menu-panel a:hover{background:var(--bg-soft);color:var(--water-dark)}

/* Breadcrumbs */
.breadcrumbs{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:10px 0;font-size:.9rem}
.breadcrumbs li+li::before{content:"›";margin-right:6px;color:var(--muted)}
.breadcrumbs a{text-decoration:none}
.breadcrumbs [aria-current]{font-weight:600;color:var(--ink)}

/* Hero: full-bleed photo with a deep navy gradient scrim. Copy sits on the
   left over the darkest part of the scrim; readable at every width. */
.hero{position:relative;color:#eaf2f9;padding:64px 0 92px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:68% center}
.hero-scrim{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(6,26,44,.84) 0%,rgba(6,26,44,.9) 100%)}
.hero-in{position:relative;z-index:2}
.hero-copy{max-width:680px}
.hero .eyebrow{color:var(--water-light)}
.hero .eyebrow::before{content:"";display:inline-block;width:28px;height:3px;background:var(--flame);border-radius:2px;vertical-align:middle;margin-right:10px}
.hero h1{color:#fff;max-width:14em;margin-bottom:.4em}
.hero .lead{font-size:1.14rem;line-height:1.7;color:#d5e5f2;max-width:44em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin:26px 0 10px}
.hero-note{font-size:.95rem;color:#b9d0e4;max-width:26em}
.hero-hours{display:flex;align-items:center;gap:8px;font-weight:700;color:#fff;font-size:1rem;margin:18px 0 0}
.hero-hours .clock-ic{width:20px;height:20px;color:var(--flame);flex:0 0 auto}
.hero-points{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:12px}
.hero-points li{display:flex;gap:12px;align-items:flex-start;font-weight:600;color:#eaf2f9}
.hero-points li::before{content:"✓";flex:0 0 auto;width:24px;height:24px;margin-top:2px;border-radius:50%;background:var(--flame);color:#fff;font-size:.85rem;font-weight:800;display:flex;align-items:center;justify-content:center}

/* Trust strip: white card overlapping the hero bottom. */
.trust-strip{position:relative;z-index:3;margin-top:-52px}
.trust-list{list-style:none;margin:0;padding:10px 8px;display:grid;gap:4px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius);box-shadow:var(--shadow)}
.trust-list li{display:flex;gap:14px;align-items:center;padding:14px 16px;min-width:0}
.trust-list li+li{border-top:1px solid var(--line-soft)}
.trust-ic{width:46px;height:46px;flex:0 0 auto;border-radius:13px;background:var(--bg-warm);color:var(--water-dark);display:flex;align-items:center;justify-content:center}
.trust-ic svg{width:24px;height:24px}
.trust-text strong{display:block;color:var(--navy);font-size:1rem;line-height:1.3}
.trust-text small{display:block;color:var(--muted);font-size:.88rem;line-height:1.4}

/* Answer-first AEO block */
.trust-strip + .container{padding-top:34px}
.answer-box{background:#fff;border:1px solid var(--line);border-left:6px solid var(--water);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 26px 12px;position:relative;z-index:2}
.answer-box h2{font-size:1.22rem}
.answer-box h2::after{display:none}
.answer-box .quick-answer{font-size:1.06rem}

/* Cards and grids */
.grid{display:grid;gap:20px;grid-template-columns:minmax(0,1fr)}
.card{position:relative;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;min-width:0;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--water),var(--flame))}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#cfe0f0}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);font-size:.98rem;flex:1}
.card .card-link{margin-top:12px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;min-height:48px;color:var(--navy)}
.card .card-link:hover{color:var(--water-dark)}
.card .card-link::after{content:"→";margin-left:7px;color:var(--flame);transition:margin-left .15s ease}
.card:hover .card-link::after{margin-left:11px}
.card-ic{width:54px;height:54px;border-radius:15px;background:var(--bg-warm);color:var(--water-dark);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card-ic svg{width:28px;height:28px}
.steps{counter-reset:step}
.step{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius);padding:26px;min-width:0;box-shadow:var(--shadow-card)}
.step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:1.15rem;margin-bottom:14px;box-shadow:0 0 0 5px rgba(249,115,22,.18)}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-weight:600;font-size:.95rem;color:var(--navy);box-shadow:0 2px 8px rgba(12,45,77,.05);transition:border-color .15s ease}
.chips li:hover{border-color:var(--water)}
.chips a{text-decoration:none}
.two-col{display:grid;gap:30px}

/* Full-width image band */
.image-band{position:relative;margin:0}
.image-band img{width:100%;height:320px;object-fit:cover}
.image-band-cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(8,33,56,.88));color:#fff;padding:56px 0 20px}
.image-band-cap p{margin:0;font-weight:700;font-size:1.05rem;max-width:46em}

/* Tables: always inside a horizontal-scroll wrapper */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-card);max-width:100%}
table{border-collapse:collapse;width:100%;min-width:0;font-size:.95rem}
th,td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:break-word}
@media (max-width:640px){table{min-width:470px}}
th{background:var(--navy);color:#fff;font-weight:700}
tr:last-child td{border-bottom:0}

/* FAQ */
.faq-list{display:grid;gap:12px}
details.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:4px 20px;transition:border-color .15s ease,box-shadow .15s ease}
details.faq:hover{border-color:#cfe0f0}
details.faq[open]{border-color:#cfe0f0;box-shadow:var(--shadow-card)}
details.faq summary{cursor:pointer;font-weight:700;color:var(--navy);min-height:48px;display:flex;align-items:center;gap:14px;padding:12px 0;list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";margin-left:auto;flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:var(--flame-soft);color:var(--flame-dark);font-size:1.3rem;font-weight:800;display:flex;align-items:center;justify-content:center}
details.faq[open] summary::after{content:"–"}
details.faq p{color:var(--muted);padding-bottom:14px}

/* CTA band */
.cta-band{text-align:center}
.cta-band h2{margin-bottom:.35em}
.cta-band h2::after{display:none}
.cta-band p{max-width:40em;margin-left:auto;margin-right:auto}
.cta-band .hero-actions{justify-content:center}

/* Footer */
.site-footer{position:relative;background:var(--navy-dark);color:#c6d7e8;padding:52px 0 44px;font-size:.95rem}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--water),var(--flame))}
.footer-grid{display:grid;gap:32px}
.site-footer h3{color:#fff;font-size:1rem;margin-bottom:12px}
.site-footer a{color:#c6d7e8;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-nav{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.footer-nav a{display:inline-flex;align-items:center;min-height:40px}
.footer-brand img{width:min(250px,100%);margin-bottom:14px}
.footer-hours{color:#fff;font-weight:700;margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:36px;padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between}
.footer-bottom a{color:#fff;font-weight:600}

/* Call bars: sticky bottom bar below 1280px, floating pill at 1280px+. */
.mobile-callbar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(8,33,56,.97);padding:10px 14px calc(10px + env(safe-area-inset-bottom));box-shadow:0 -4px 18px rgba(0,0,0,.25)}
.mobile-callbar .btn-call{width:100%;min-height:54px;font-size:1.1rem}
.float-call{display:none}

/* Reveal-on-scroll: class is added by JS only, so no-JS keeps content visible. */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}

/* 480px: roomier gutters. 600px: stacked brand text joins the mark
   (icon + text + call pill + menu only fit together from ~600px). */
@media (min-width:480px){
  .container{padding:0 20px}
}
@media (min-width:600px){
  .brand-compact-text{display:block}
}
/* 640px: two-column grids, trust strip 2 columns */
@media (min-width:640px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust-list{grid-template-columns:repeat(2,minmax(0,1fr));padding:12px}
  .trust-list li+li{border-top:0}
  .trust-list li:nth-child(n+3){border-top:1px solid var(--line-soft)}
}
/* 768px: topbar shows, tablet header and type */
@media (min-width:768px){
  .topbar{display:block}
  .brand-compact{display:none}
  .brand-full{display:block;height:46px;width:auto}
  .header-in{min-height:76px;gap:14px}
  .header-call{font-size:1rem;padding:12px 20px}
  .section{padding:80px 0}
  .hero{padding:84px 0 108px}
  .image-band img{height:400px}
}
/* 900px: hero scrim opens to the right, two-column rows */
@media (min-width:900px){
  .hero-scrim{background:linear-gradient(90deg,rgba(6,26,44,.96) 0%,rgba(6,26,44,.87) 44%,rgba(6,26,44,.58) 72%,rgba(6,26,44,.32) 100%)}
  .hero{min-height:620px;display:flex;align-items:center}
  .two-col{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start}
}
/* 1024px: three-column grids, trust strip 4 columns, wide footer */
@media (min-width:1024px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .trust-list{grid-template-columns:repeat(4,minmax(0,1fr))}
  .trust-list li:nth-child(n+3){border-top:0}
  .trust-list li+li{border-left:1px solid var(--line-soft)}
  .footer-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1fr)}
  .image-band img{height:460px}
}
/* 1200px: desktop header - inline nav joins logo + call in one row */
@media (min-width:1200px){
  .menu{display:none}
  .main-nav{display:block;margin-left:auto}
  .main-nav ul{display:flex;list-style:none;margin:0;padding:0;gap:4px}
  .main-nav a{display:flex;align-items:center;min-height:48px;padding:10px 12px;text-decoration:none;font-weight:600;color:var(--navy);border-radius:var(--radius-sm);white-space:nowrap}
  .main-nav a:hover,.main-nav a[aria-current="page"]{background:var(--bg-soft);color:var(--water-dark)}
  .header-call{margin-left:14px}
}
/* 1280px: floating call pill replaces the sticky bottom bar */
@media (min-width:1280px){
  body{padding-bottom:0}
  .mobile-callbar{display:none}
  .float-call{display:inline-flex;position:fixed;right:22px;bottom:22px;z-index:70;min-height:56px;transition:opacity .25s ease,transform .25s ease}
  .float-call.is-hidden{opacity:0;pointer-events:none;transform:translateY(12px)}
  .site-footer{padding-bottom:48px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .btn-call,.card,.card .card-link::after,.float-call{transition:none}
  .reveal{opacity:1;transform:none;transition:none}
  .card:hover{transform:none}
}