/* ==========================================================================
   MASTER TEMPLATE v2 — Plumbing & Heating (instance: Riverway Heating)
   Premium tier: photo hero, scroll reveals, sticky mobile call bar.
   Brand tokens live in :root — generate_site.py swaps them per client.
   ========================================================================== */

:root {
  /* Brand tokens — edit per client */
  --ink: #101f2e;          /* deep slate navy */
  --ink-soft: #3d4c58;
  --ember: #d94425;        /* flame orange */
  --ember-deep: #b8461a;
  --paper: #f8f7f4;        /* warm cream */
  --paper-warm: #eeece5;
  --card: #ffffff;
  --line: #e4dccb;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Archivo", "Helvetica Neue", sans-serif;

  --radius: 16px;
  --shadow: 0 2px 6px rgba(22,35,46,.06), 0 18px 44px -16px rgba(22,35,46,.2);
  --wrap: 1160px;
}

/* ---------- Reset & base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink-soft);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
h1, h2, h3 { font-family: var(--font-display); color: var(--ink); line-height: 1.12; font-weight: 600; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); letter-spacing: -.012em; }
h3 { font-size: 1.2rem; }
a { color: inherit; }
img, svg { display: block; }
img { max-width: 100%; }
section { padding: clamp(3.8rem, 8vw, 7rem) clamp(1.25rem, 5vw, 3rem); }

.kicker {
  font-size: .78rem; font-weight: 700; letter-spacing: .17em; text-transform: uppercase;
  color: var(--ember); margin-bottom: .65rem;
  display: flex; align-items: center; gap: .5rem;
}
.kicker-ember { color: var(--ember); }
.section-head { max-width: var(--wrap); margin: 0 auto 2.6rem; }
.head-sub { margin-top: .5rem; max-width: 34rem; }
.stars { color: #f5a623; letter-spacing: .1em; }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .12s; }
.reveal-d2 { transition-delay: .24s; }
.reveal-d3 { transition-delay: .36s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-weight: 700; font-size: .95rem; text-decoration: none;
  padding: .9rem 1.6rem; border-radius: 999px; border: none; cursor: pointer;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ember); color: #fff; box-shadow: 0 12px 30px -10px rgba(224,92,31,.65); }
.btn-primary:hover { background: var(--ember-deep); }
.btn-glass {
  background: rgba(255,255,255,.12); color: #fff;
  border: 1px solid rgba(255,255,255,.35); backdrop-filter: blur(8px);
}
.btn-glass:hover { background: rgba(255,255,255,.22); }
.btn-call { background: var(--ink); color: #fff; font-size: .9rem; padding: .7rem 1.25rem; }
.btn-call:hover { background: var(--ember); }
.btn-lg { padding: 1.05rem 1.9rem; font-size: 1.02rem; }
.btn-xl { padding: 1.2rem 2.2rem; font-size: 1.2rem; }
.btn-block { width: 100%; }
.btn-wa { background: #1fa855; color: #fff; margin-top: 1rem; }
.btn-wa:hover { background: #178a45; }
.btn-wa svg { width: 20px; height: 20px; }

/* ---------- Top bar ---------- */
.topbar { background: var(--ink); color: #b9c6d0; font-size: .8rem; }
.topbar-inner {
  max-width: var(--wrap); margin: 0 auto; padding: .45rem clamp(1.25rem, 5vw, 3rem);
  display: flex; gap: 2rem; justify-content: space-between; flex-wrap: wrap;
}
.topbar-item { display: inline-flex; align-items: center; gap: .45rem; }
.topbar-item svg { width: 14px; height: 14px; fill: var(--ember); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  display: flex; align-items: center; gap: 2rem;
  padding: .85rem clamp(1.25rem, 5vw, 3rem);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 6px 24px -12px rgba(22,35,46,.18); }
.logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.logo-mark { width: 34px; height: 34px; }
.logo-text { font-family: var(--font-display); font-weight: 700; font-size: 1.28rem; color: var(--ink); }
.logo-text em, .footer-logo em { font-style: normal; color: var(--ember); }
.site-nav { display: flex; gap: 1.35rem; margin-left: auto; }
.site-nav a {
  text-decoration: none; font-size: .92rem; font-weight: 500; color: var(--ink-soft);
  transition: color .15s;
}
.site-nav a:hover { color: var(--ember); }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #e9eef2; overflow: hidden;
  padding-top: clamp(4rem, 9vw, 7.5rem); padding-bottom: clamp(4rem, 9vw, 7rem);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(100deg, rgba(13,21,28,.94) 32%, rgba(13,21,28,.72) 60%, rgba(13,21,28,.45)),
    url('https://images.unsplash.com/photo-1607472586893-edb57bdc0e39?w=1800&q=75&auto=format&fit=crop') center/cover no-repeat;
}
.hero-bg::after {
  /* ember glow, bottom left */
  content: ""; position: absolute; left: -10%; bottom: -30%; width: 60%; height: 80%;
  background: radial-gradient(ellipse at center, rgba(224,92,31,.22), transparent 65%);
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: var(--wrap); margin: 0 auto;
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 3.5rem; align-items: center;
}
.hero-kicker {
  font-size: .8rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: #f0b795; margin-bottom: 1.2rem;
}
.hero h1 {
  color: #fff; font-size: clamp(2.5rem, 5.6vw, 4.2rem); font-weight: 700;
  letter-spacing: -.015em; margin-bottom: 1.2rem;
}
.hero h1 em, .hero h1 .ember-text { color: var(--ember); font-style: italic; font-weight: 600; }
.hero-sub { font-size: 1.12rem; max-width: 36rem; margin-bottom: 2rem; color: #c9d4dc; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.8rem; }
.hero-review { display: flex; align-items: center; gap: .7rem; font-size: .9rem; color: #c9d4dc; }
.hero-review strong { color: #fff; }

.hero-cards { display: grid; gap: 1rem; }
.hcard {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius); padding: 1.3rem 1.5rem; backdrop-filter: blur(8px);
}
.hcard-num, .hcard-unit {
  font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; color: #fff; line-height: 1;
}
.hcard-unit { color: var(--ember); font-size: 1.4rem; }
.hcard p { font-size: .86rem; color: #b9c6d0; margin-top: .3rem; }

/* ---------- Trust strip ---------- */
.trust-strip { background: var(--paper-warm); border-bottom: 1px solid var(--line); }
.trust-strip-inner {
  max-width: var(--wrap); margin: 0 auto;
  padding: 1rem clamp(1.25rem, 5vw, 3rem);
  display: flex; gap: 2.5rem; justify-content: space-between; flex-wrap: wrap;
  font-size: .88rem; font-weight: 600; color: var(--ink);
}
.trust-strip-inner span { display: inline-flex; align-items: center; gap: .55rem; }
.trust-strip-inner svg { width: 18px; height: 18px; fill: var(--ember); }

/* ---------- Services ---------- */
.services { background: var(--paper); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.3rem;
  max-width: var(--wrap); margin: 0 auto;
}
.service-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.7rem 1.6rem 1.5rem; position: relative; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.service-num {
  font-family: var(--font-display); font-size: .85rem; font-weight: 600; color: var(--ember);
  display: block; margin-bottom: .8rem;
}
.service-card h3 { margin-bottom: .5rem; }
.service-card p { font-size: .93rem; }
.service-price {
  margin-top: 1rem; font-weight: 700; font-size: .82rem !important;
  text-transform: uppercase; letter-spacing: .06em; color: var(--ink);
}
.service-card-feature { background: var(--ink); border-color: var(--ink); }
.service-card-feature h3, .service-card-feature .service-price { color: #fff; }
.service-card-feature p { color: #b9c6d0; }
.service-card-feature .service-num { color: var(--ember); }
.service-card-photo {
  padding: 0; display: flex; align-items: flex-end; min-height: 320px;
  background: linear-gradient(to top, rgba(13,21,28,.92) 30%, rgba(13,21,28,.25) 65%, rgba(13,21,28,.05)), var(--photo) center/cover no-repeat;
  border: none;
}
.service-card-photo .service-card-body { padding: 1.7rem 1.6rem 1.5rem; }
.service-card-photo h3, .service-card-photo .service-price { color: #fff; }
.service-card-photo p { color: #cfd9e1; }

/* ---------- About ---------- */
.about { background: var(--paper-warm); }
.about-inner {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 4rem; align-items: center;
  max-width: var(--wrap); margin: 0 auto;
}
.about-photo { position: relative; }
.about-photo img {
  width: 100%; border-radius: var(--radius); box-shadow: var(--shadow);
  aspect-ratio: 4/5; object-fit: cover;
}
.about-badge {
  position: absolute; bottom: -1.4rem; right: -1rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: .9rem 1.1rem; box-shadow: var(--shadow); max-width: 240px; font-size: .84rem;
}
.about-badge .stars { font-size: .8rem; display: block; margin-bottom: .3rem; }
.about h2 { margin-bottom: 1rem; }
.about-lead { font-size: 1.05rem; margin-bottom: 1.4rem; }
.about-list { list-style: none; display: grid; gap: .9rem; margin-bottom: 1.8rem; }
.about-list li { padding-left: 1.6rem; position: relative; font-size: .96rem; }
.about-list li::before { content: "—"; position: absolute; left: 0; color: var(--ember); font-weight: 700; }
.about-list strong { color: var(--ink); }
.about-cta { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.about-sign { font-family: var(--font-display); font-style: italic; color: var(--ink); }

/* ---------- Emergency band ---------- */
.emergency { position: relative; color: #e9eef2; overflow: hidden; }
.emergency-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(13,21,28,.96) 30%, rgba(13,21,28,.8)),
    url('https://images.unsplash.com/photo-1504328345606-18bbc8c9d7d1?w=1600&q=70&auto=format&fit=crop') center/cover no-repeat;
}
.emergency-inner {
  position: relative; max-width: var(--wrap); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 2.5rem; flex-wrap: wrap;
}
.emergency h2 { color: #fff; margin-bottom: .7rem; max-width: 34rem; }
.emergency h2 span { color: var(--ember); }
.emergency p { color: #c9d4dc; max-width: 32rem; }
.pulse-dot {
  width: 10px; height: 10px; border-radius: 50%; background: var(--ember); display: inline-block;
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(224,92,31,.6); }
  50% { box-shadow: 0 0 0 8px rgba(224,92,31,0); }
}

/* ---------- Work gallery ---------- */
.work { background: var(--paper); }
.work-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 210px; gap: 1.1rem;
  max-width: var(--wrap); margin: 0 auto;
}
.work-item { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.work-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.work-item:hover img { transform: scale(1.05); }
.work-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.6rem 1rem .8rem;
  background: linear-gradient(to top, rgba(13,21,28,.85), transparent);
  color: #fff; font-size: .82rem; font-weight: 600;
}
.work-item-tall { grid-row: span 2; }
.work-note { max-width: var(--wrap); margin: 1.3rem auto 0; font-size: .78rem; opacity: .55; font-style: italic; }

/* ---------- Reviews ---------- */
.reviews { background: var(--paper-warm); }
.reviews-summary { margin-top: .6rem; font-size: .95rem; }
.reviews-summary strong { color: var(--ink); }
.reviews-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem;
  max-width: var(--wrap); margin: 0 auto;
}
.review-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow);
}
.review-head { display: flex; align-items: center; gap: .8rem; margin-bottom: 1rem; }
.review-head > div { flex: 1; display: grid; }
.review-head strong { color: var(--ink); font-size: .95rem; }
.review-meta { font-size: .78rem; opacity: .7; }
.review-stars { color: #f5a623; font-size: .8rem; letter-spacing: .1em; }
.avatar {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 1.05rem;
  background: var(--av, var(--ember));
}
.review-card blockquote { font-family: var(--font-display); font-size: 1.02rem; color: var(--ink); line-height: 1.45; }
.reviews-note { max-width: var(--wrap); margin: 1.4rem auto 0; font-size: .78rem; opacity: .55; font-style: italic; }

/* ---------- Process ---------- */
.process { background: var(--ink); color: #b9c6d0; }
.process .kicker { color: var(--ember); }
.process h2 { color: #fff; }
.process-steps {
  list-style: none; max-width: var(--wrap); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
  counter-reset: step;
}
.process-steps li { position: relative; padding-top: .4rem; }
.p-num {
  display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 700;
  background: rgba(224,92,31,.15); color: var(--ember); border: 1px solid rgba(224,92,31,.4);
  margin-bottom: 1rem;
}
.process-steps h3 { color: #fff; margin-bottom: .4rem; font-size: 1.05rem; }
.process-steps p { font-size: .89rem; }

/* ---------- Areas ---------- */
.areas { background: var(--paper); }
.areas-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center;
  max-width: var(--wrap); margin: 0 auto;
}
.areas h2 { margin-bottom: .8rem; }
.areas-copy > p { margin-bottom: 1.6rem; }
.areas-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: .6rem .8rem; }
.areas-list li {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: .6rem 1rem .6rem 2rem; font-size: .92rem; font-weight: 500; color: var(--ink);
  position: relative;
}
.areas-list li::before { content: "◆"; position: absolute; left: .85rem; color: var(--ember); font-size: .6rem; top: 50%; transform: translateY(-50%); }
.areas-photo { position: relative; }
.areas-photo img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.areas-chip {
  position: absolute; bottom: 1rem; left: 1rem; right: 1rem;
  background: rgba(13,21,28,.82); color: #fff; backdrop-filter: blur(6px);
  border-radius: 10px; padding: .55rem 1rem; font-size: .82rem; font-weight: 600; text-align: center;
  letter-spacing: .05em;
}

/* ---------- FAQ ---------- */
.faq { background: var(--paper-warm); }
.faq-grid { max-width: 820px; margin: 0 auto; display: grid; gap: .7rem; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.1rem 1.4rem;
}
.faq summary {
  cursor: pointer; font-weight: 600; color: var(--ink); font-size: 1rem;
  list-style: none; position: relative; padding-right: 2rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-size: 1.5rem; color: var(--ember); transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding-top: .7rem; font-size: .94rem; }

/* ---------- Contact ---------- */
.contact { background: var(--ink); color: #b9c6d0; }
.contact-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: start;
  max-width: var(--wrap); margin: 0 auto;
}
.contact h2 { color: #fff; margin-bottom: .8rem; }
.contact-phone {
  display: inline-flex; align-items: center; gap: .7rem;
  font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: #fff;
  text-decoration: none; margin: 1.4rem 0 .2rem;
}
.contact-phone svg { width: 26px; height: 26px; fill: var(--ember); }
.contact-phone:hover { color: var(--ember); }
.contact-hours { font-size: .88rem; margin-top: 1rem; }
.contact-form {
  background: var(--card); border-radius: var(--radius); padding: 1.9rem;
  display: grid; gap: 1rem; box-shadow: var(--shadow);
}
.contact-form label { font-size: .84rem; font-weight: 600; color: var(--ink); display: grid; gap: .35rem; }
.optional { font-weight: 400; opacity: .6; }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit; font-size: .95rem; color: var(--ink);
  padding: .75rem .9rem; border: 1.5px solid var(--line); border-radius: 10px; background: var(--paper);
  transition: border-color .15s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--ember);
}
.form-note { font-size: .76rem; color: var(--ink-soft); opacity: .75; }

/* ---------- Footer ---------- */
.site-footer { background: #0f1922; color: #8fa0ad; padding: 3rem clamp(1.25rem, 5vw, 3rem) 5rem; font-size: .88rem; }
.footer-inner {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem;
  max-width: var(--wrap); margin: 0 auto 2.5rem;
}
.footer-logo { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: #fff; margin-bottom: .6rem; }
.footer-head { font-weight: 700; color: #fff; margin-bottom: .5rem; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }
.site-footer a { color: #c8d4dd; text-decoration: none; }
.site-footer a:hover { color: var(--ember); }
.footer-legal { max-width: var(--wrap); margin: 0 auto; border-top: 1px solid rgba(255,255,255,.1); padding-top: 1.4rem; font-size: .78rem; }

/* ---------- Sticky mobile call bar ---------- */
.mobile-callbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 95;
  display: none; gap: 1px; background: var(--line);
  box-shadow: 0 -8px 30px rgba(13,21,28,.25);
}
.mobile-callbar a {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: .5rem;
  padding: 1rem; font-weight: 700; font-size: 1rem; text-decoration: none;
}
.mobile-callbar svg { width: 20px; height: 20px; fill: currentColor; }
.mcb-call { background: var(--ember); color: #fff; }
.mcb-quote { background: var(--ink); color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-cards { grid-template-columns: repeat(3, 1fr); }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .about-inner, .areas-inner, .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .work-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr 1fr; }
  .site-nav { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .about-badge { right: 0; }
}
@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .services-grid, .reviews-grid, .hero-cards { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; grid-auto-rows: 230px; }
  .work-item-tall { grid-row: auto; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .btn-call { display: none; }
  .topbar-hide-sm { display: none; }
  .topbar-inner { justify-content: center; }
  .mobile-callbar { display: flex; }
  .emergency-inner { justify-content: center; text-align: center; }
  .emergency .kicker { justify-content: center; }
}