/* Water Heater St. Charles — shared stylesheet (no frameworks, no external deps) */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --navy:#0b3556;--navy-dark:#062540;--accent:#f26b1d;--accent-dark:#d3540a;
  --ink:#1d2733;--muted:#5b6b7a;--paper:#f6f8fa;--card:#ffffff;--line:#dce4ea;
  --ok-bg:#e6f4ea;--ok:#137333;
}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.65}
a{color:var(--navy)}
img{max-width:100%}

/* top nav */
.topnav{background:var(--navy-dark);color:#fff}
.topnav .wrap{max-width:1080px;margin:0 auto;padding:.6rem 1.25rem;display:flex;
  align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.brandmark{color:#fff;font-weight:800;font-size:1.1rem;text-decoration:none;letter-spacing:.4px}
.brandmark span{color:var(--accent)}
.topnav nav{display:flex;gap:1.1rem;flex-wrap:wrap;align-items:center}
.topnav nav a{color:#cfdde9;text-decoration:none;font-size:.92rem}
.topnav nav a:hover,.topnav nav a.active{color:#fff;text-decoration:underline}
.topnav .callbtn{background:var(--accent);color:#fff;font-weight:800;
  padding:.45rem 1rem;border-radius:8px;text-decoration:none}
.topnav .callbtn:hover{background:var(--accent-dark);text-decoration:none}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,#0f4a76 60%,#14639c 100%);
  color:#fff;padding:3rem 1.25rem;text-align:center}
.hero h1{font-size:2.1rem;line-height:1.25;letter-spacing:.3px;max-width:840px;margin:0 auto}
.hero p.lede{color:#d5e6f2;max-width:700px;margin:1rem auto 0;font-size:1.05rem}
.hero .sub{color:#a9c6da;font-size:.9rem;margin-top:.75rem}
.hero .hero-cta{margin-top:1.6rem;display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:800;
  padding:.8rem 1.9rem;border-radius:9px;text-decoration:none;font-size:1.05rem;border:none;cursor:pointer}
.btn:hover{background:var(--accent-dark)}
.btn.secondary{background:#fff;color:var(--navy)}
.btn.secondary:hover{background:#e8f0f6}
.btn.alt{background:var(--navy);color:#fff}
.btn.alt:hover{background:var(--navy-dark)}
.cta .btn{margin:.2rem}

/* hero price line */
.hero .price-line{margin:1.5rem auto 0;max-width:800px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.45);border-radius:12px;padding:1rem 1.25rem}
.hero .price-line .pl-amt{display:inline-block;font-size:1.3rem;font-weight:800;color:#fff;margin:.1rem .5rem}
.hero .price-line .pl-amt .amt{color:#ffb27a}
.hero .price-line p{color:#d5e6f2;font-size:.95rem;margin-top:.3rem}

/* under-pricing CTA row */
.price-cta{text-align:center;margin-top:1.75rem}
.price-cta .btn{margin:.2rem}

/* emergency strip */
.emergency{background:#fdf0e4;border-bottom:2px solid var(--accent);text-align:center;
  padding:.8rem 1.25rem;font-size:1rem}
.emergency strong{color:var(--accent-dark)}
.emergency a{font-weight:800;color:var(--navy)}

/* layout */
main{max-width:1080px;margin:0 auto;padding:2rem 1.25rem}
section.block{margin:2.5rem 0}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:1rem}
.intro h2,.block h2{color:var(--navy);font-size:1.5rem;margin-bottom:.6rem}
.intro p{color:#3d4a56;max-width:760px}
.prose p{margin-bottom:1rem;color:#33424f;max-width:760px}
.prose h2{color:var(--navy);margin:1.75rem 0 .6rem;font-size:1.35rem}
.prose h3{color:var(--navy);margin:1.25rem 0 .4rem;font-size:1.1rem}
.prose ul{margin:0 0 1rem 1.25rem;color:#33424f;max-width:740px}
.prose li{margin-bottom:.35rem}

/* trust strip */
.trust{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:.9rem;margin:2rem 0}
.trust .t{background:var(--card);border:1px solid var(--line);border-radius:10px;
  padding:.95rem 1.05rem;font-size:.93rem}
.trust .t strong{display:block;color:var(--navy);font-size:.98rem;margin-bottom:.15rem}
.trust .t span{color:var(--muted)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem;margin:1.5rem 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1.25rem}
.card h3{color:var(--navy);margin-bottom:.25rem;font-size:1.08rem}
.card p{font-size:.92rem;color:var(--muted)}
.card .go{display:inline-block;margin-top:.6rem;font-weight:700}
.pricecard{border:2px solid var(--navy);text-align:center}
.pricecard .big{display:block;font-size:2.1rem;font-weight:800;color:var(--accent-dark);
  line-height:1.15;margin:.25rem 0}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin:1.5rem 0}
.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1.3rem}
.step .n{display:inline-flex;align-items:center;justify-content:center;width:2rem;height:2rem;
  border-radius:50%;background:var(--navy);color:#fff;font-weight:800;margin-bottom:.6rem}
.step h3{color:var(--navy);margin-bottom:.3rem;font-size:1.05rem}
.step p{font-size:.93rem;color:#3d4a56}

/* signs list */
.signs{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.9rem;margin:1.25rem 0}
.sign{background:var(--card);border-left:4px solid var(--accent);border-radius:8px;
  padding:.9rem 1.05rem;font-size:.94rem}
.sign strong{color:var(--navy)}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:10px;
  margin-bottom:.7rem;padding:.9rem 1.1rem}
.faq summary{font-weight:700;color:var(--navy);cursor:pointer;font-size:1rem}
.faq details p{margin-top:.5rem;color:#33424f;font-size:.95rem}

/* booking form */
.bookform{background:var(--card);border:2px solid var(--navy);border-radius:14px;
  padding:1.75rem;max-width:640px;margin:1.5rem auto}
.bookform h3{color:var(--navy);font-size:1.25rem;margin-bottom:.3rem}
.bookform .fineprint{font-size:.82rem;color:var(--muted);margin-top:.75rem}
.field{margin-bottom:1rem}
.field label{display:block;font-weight:700;font-size:.9rem;color:var(--navy);margin-bottom:.3rem}
.field input,.field select,.field textarea{width:100%;padding:.65rem .8rem;font-size:1rem;
  border:1px solid var(--line);border-radius:8px;font-family:inherit;background:#fff;color:var(--ink)}
.field textarea{min-height:84px;resize:vertical}
.bookform .btn{width:100%;font-size:1.1rem}

/* cta + footer */
.cta{background:var(--navy);color:#fff;border-radius:14px;padding:2.25rem 1.5rem;
  margin:3rem 0;text-align:center}
.cta h2{color:#fff;margin-bottom:.5rem;font-size:1.4rem}
.cta p{color:#cfdde9;max-width:580px;margin:0 auto 1.25rem}
footer.site{background:var(--navy-dark);color:#a9c6da;margin-top:3rem}
footer.site .wrap{max-width:1080px;margin:0 auto;padding:2rem 1.25rem;font-size:.88rem;
  display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
footer.site nav{display:flex;gap:1.1rem;flex-wrap:wrap}
footer.site a{color:#d5e6f2}
footer.site h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.6px;margin-bottom:.5rem}
footer.site .col nav{flex-direction:column;gap:.4rem}
.copy{max-width:1080px;margin:0 auto;padding:0 1.25rem 1.75rem;color:#7d99b0;font-size:.8rem}

/* mobile call bar */
.callbar{display:none}
@media(max-width:640px){
  .hero h1{font-size:1.55rem}
  .bookform{padding:1.25rem}
  .callbar{display:block;position:fixed;left:0;right:0;bottom:0;z-index:50;
    background:var(--accent);text-align:center;padding:.85rem 1rem}
  .callbar a{color:#fff;font-weight:800;font-size:1.05rem;text-decoration:none;display:block}
  body{padding-bottom:3.2rem}
}