:root {
  --green: #0f7a43;
  --green-dark: #0a5931;
  --green-soft: #eaf6ef;
  --charcoal: #1e2a26;
  --text: #35433f;
  --muted: #6f7c76;
  --border: #d9e5dd;
  --bg: #f8fbf9;
  --white: #ffffff;
  --shadow: 0 18px 42px rgba(19, 48, 32, 0.10);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  background: var(--green-dark);
  color: #fff;
  font-size: 0.92rem;
}
.topbar-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 10px 0;
}
.topbar-links { display: flex; gap: 18px; flex-wrap: wrap; }
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(15,122,67,0.08);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: 84px;
}
.brand img { width: 172px; }
.site-nav {
  display: flex; align-items: center; gap: 22px; font-weight: 600;
}
.nav-cta { margin-left: 8px; }
.menu-toggle {
  display: none; border: 1px solid var(--border); background: #fff; border-radius: 12px;
  padding: 10px 12px; font-size: 1.2rem;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; padding: 14px 24px; font-weight: 700; transition: 0.25s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--green), var(--green-dark)); color: #fff;
  box-shadow: 0 10px 24px rgba(15,122,67,0.24);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-secondary {
  border: 1px solid rgba(255,255,255,0.5); color: #fff; background: rgba(255,255,255,0.12);
}
.btn-secondary:hover { background: rgba(255,255,255,0.18); }
.btn-light { background: #fff; color: var(--green-dark); }
.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(8,45,27,0.92), rgba(12,91,50,0.86)), url('assets/heatpump-outdoor-2.jpg') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0; background: radial-gradient(circle at top right, rgba(255,255,255,0.12), transparent 35%);
}
.hero-grid {
  position: relative;
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 42px; align-items: center;
  padding: 74px 0;
}
.eyebrow {
  display: inline-block; margin-bottom: 12px; font-size: 0.86rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--green);
}
.hero .eyebrow, .light { color: #dff7e9; }
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.6rem); line-height: 1.02; margin: 0 0 20px;
  max-width: 11ch;
}
.hero p { font-size: 1.1rem; max-width: 60ch; color: rgba(255,255,255,0.92); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0 22px; }
.hero-points {
  list-style: none; padding: 0; margin: 0; display: flex; gap: 18px; flex-wrap: wrap;
  color: rgba(255,255,255,0.9); font-weight: 600; font-size: 0.95rem;
}
.hero-points li::before { content: '•'; margin-right: 8px; color: #b4f1cb; }
.hero-card {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.hero-card img { aspect-ratio: 4 / 4.7; object-fit: cover; width: 100%; }
.hero-card-caption {
  padding: 14px 18px; background: rgba(255,255,255,0.08); font-weight: 600;
}
.trust-strip { background: var(--green-soft); border-bottom: 1px solid var(--border); }
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; text-align: center;
  padding: 18px 0; font-weight: 700; color: var(--green-dark);
}
.section { padding: 88px 0; }
.muted-bg { background: var(--bg); }
.section-heading { text-align: center; max-width: 760px; margin: 0 auto 42px; }
.section-heading.left { text-align: left; max-width: none; margin-bottom: 28px; }
.section h2, .cta-band h2 {
  margin: 0 0 14px; font-size: clamp(2rem, 3vw, 3rem); line-height: 1.1; color: var(--charcoal);
}
.section-heading p { color: var(--muted); margin: 0; }
.intro-grid, .benefits-grid, .contact-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 34px; align-items: center;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
}
.stat-card, .feature-card, .service-card, .process-step, .faq-grid article {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.stat-card { padding: 22px; }
.stat-card strong { display: block; font-size: 1.12rem; margin-bottom: 8px; color: var(--charcoal); }
.service-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 24px; align-items: stretch;
}
.service-card { overflow: hidden; }
.featured-card { display: grid; grid-template-columns: 0.88fr 1.12fr; }
.service-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.service-content, .service-copy-only { padding: 28px; }
.service-content h3, .service-copy-only h3, .feature-card h3, .faq-grid h3, .process-step h3 { margin-top: 0; color: var(--charcoal); }
.service-card ul, .check-list { padding-left: 20px; margin: 18px 0 0; }
.small-note { margin-top: 16px; color: var(--muted); font-size: 0.95rem; }
.feature-grid, .process-grid, .faq-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.feature-card, .process-step, .faq-grid article { padding: 24px; }
.process-step span {
  width: 48px; height: 48px; border-radius: 50%; display: inline-grid; place-items: center;
  background: var(--green-soft); color: var(--green-dark); font-weight: 800; margin-bottom: 16px;
}
.gallery-grid {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
}
.gallery-item {
  grid-column: span 3; position: relative; overflow: hidden; border-radius: 20px;
  min-height: 280px; box-shadow: var(--shadow);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; }
.gallery-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 16px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.7)); color: #fff; font-weight: 600;
}
.gallery-wide { grid-column: span 6; }
.gallery-tall { grid-column: span 3; grid-row: span 2; min-height: 576px; }
.benefits-image img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 4 / 5; object-fit: cover; }
.check-list { list-style: none; padding: 0; }
.check-list li { margin: 0 0 10px; padding-left: 28px; position: relative; }
.check-list li::before {
  content: '✓'; position: absolute; left: 0; top: 0; color: var(--green); font-weight: 800;
}
.cta-band {
  background: linear-gradient(135deg, var(--green-dark), var(--green)); color: #fff; padding: 64px 0;
}
.cta-band-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.cta-band p { color: rgba(255,255,255,0.88); max-width: 55ch; }
.contact-panel {
  background: linear-gradient(135deg, #fff, var(--green-soft));
  border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow);
}
.contact-list { display: grid; gap: 12px; margin-top: 24px; }
.contact-form {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
label { display: grid; gap: 8px; font-weight: 600; margin-bottom: 16px; }
input, select, textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px;
  font: inherit; color: var(--charcoal); background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(15,122,67,0.15); border-color: var(--green); }
.site-footer {
  background: #18231f; color: rgba(255,255,255,0.86); padding-top: 54px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr; gap: 26px;
}
.footer-logo { width: 170px; background: #fff; padding: 8px; border-radius: 10px; margin-bottom: 14px; }
.site-footer h3 { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); margin-top: 28px; padding: 18px 0 28px; text-align: center; }

@media (max-width: 1050px) {
  .hero-grid, .intro-grid, .benefits-grid, .contact-grid, .service-grid, .featured-card { grid-template-columns: 1fr; }
  .feature-grid, .faq-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item { grid-column: span 6; }
  .gallery-tall { min-height: 360px; grid-row: auto; }
  .cta-band-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 820px) {
  .topbar-inner { flex-direction: column; align-items: flex-start; }
  .menu-toggle { display: inline-flex; }
  .site-nav {
    display: none; position: absolute; top: 84px; left: 16px; right: 16px; background: #fff; padding: 18px;
    border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); flex-direction: column; align-items: flex-start;
  }
  .site-nav.open { display: flex; }
  .nav-cta { margin-left: 0; width: 100%; }
  .trust-grid, .stats-grid, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .feature-grid, .process-grid, .faq-grid { grid-template-columns: 1fr; }
  .gallery-item, .gallery-wide, .gallery-tall { grid-column: span 12; min-height: 260px; }
  .hero h1 { max-width: 100%; }
  .section { padding: 72px 0; }
}