:root{--bg:#0b0f14;--bg2:#121821;--card:#151d28;--sky:#4fc3ff;--sky2:#189be6;--text:#fff;--muted:#b7c2d0;--border:#253040;--warm:#ff5b35;--warm2:#ff9a3d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1160px,92vw);margin:auto}.topbar{background:#070a0e;color:var(--muted);font-size:.92rem}.topbar .container{display:flex;justify-content:space-between;gap:16px;padding:8px 0}.site-header{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0}.logo{font-size:1.55rem;font-weight:900;letter-spacing:-.06em;line-height:1}.logo .vector{color:#fff}.logo .heat{background:linear-gradient(110deg,var(--warm),var(--warm2));-webkit-background-clip:text;background-clip:text;color:transparent}.nav-links{display:flex;gap:22px;align-items:center;font-size:.95rem;color:var(--muted)}.nav-links a:hover{color:#fff}.btn,.button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 18px;font-weight:800;border:1px solid transparent;transition:.2s}.btn-primary{background:linear-gradient(135deg,var(--sky),var(--sky2));color:#061018;box-shadow:0 16px 35px rgba(79,195,255,.18)}.btn-secondary{border-color:var(--border);background:rgba(255,255,255,.04);color:#fff}.btn-warm{background:linear-gradient(135deg,var(--warm),var(--warm2));color:#130806}.hero{position:relative;overflow:hidden;padding:100px 0 70px;background:radial-gradient(circle at 75% 20%,rgba(79,195,255,.22),transparent 38%),linear-gradient(180deg,#0b0f14 0%,#101722 100%)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}.eyebrow{color:var(--sky);font-weight:900;text-transform:uppercase;letter-spacing:.12em;font-size:.78rem}.hero h1,.page-hero h1{font-size:clamp(2.5rem,6vw,5.4rem);line-height:.98;letter-spacing:-.07em;margin:14px 0 20px}.hero p,.page-hero p{color:var(--muted);font-size:1.12rem;max-width:680px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}.hero-card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));border:1px solid var(--border);border-radius:28px;padding:18px;box-shadow:0 25px 80px rgba(0,0,0,.35)}.image-placeholder{aspect-ratio:4/3;border-radius:22px;background:linear-gradient(135deg,rgba(79,195,255,.25),rgba(255,91,53,.16)),url('../img/README-images.txt');border:1px solid var(--border);display:flex;align-items:end;padding:22px;color:#fff;font-weight:800}.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}.trust-strip div{padding:14px;border:1px solid var(--border);border-radius:16px;background:rgba(255,255,255,.04);color:var(--muted);font-weight:700;text-align:center}.section{padding:78px 0}.section-alt{background:var(--bg2)}.section-title{max-width:820px;margin-bottom:36px}.section-title h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1;letter-spacing:-.05em;margin:0 0 12px}.section-title p{color:var(--muted);font-size:1.05rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.card{background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));border:1px solid var(--border);border-radius:24px;padding:26px}.card h3{margin:0 0 8px;font-size:1.35rem;letter-spacing:-.03em}.card p,.card li{color:var(--muted)}.card ul{padding-left:18px}.feature{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:center}.badge-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.badge{border:1px solid var(--border);background:rgba(79,195,255,.08);color:#dff5ff;border-radius:999px;padding:8px 12px;font-weight:700;font-size:.9rem}.services-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.service-tile{border:1px solid var(--border);border-radius:18px;padding:18px;background:#101721;color:#fff;font-weight:850}.service-tile span{display:block;color:var(--muted);font-weight:500;font-size:.9rem;margin-top:6px}.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gallery .image-placeholder{aspect-ratio:1/1;border-radius:20px;font-size:.9rem}.contact-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start;background:linear-gradient(135deg,rgba(79,195,255,.12),rgba(255,91,53,.06));border:1px solid var(--border);border-radius:30px;padding:30px}.form{display:grid;gap:12px}.form input,.form select,.form textarea{width:100%;padding:14px 15px;border-radius:14px;border:1px solid var(--border);background:#091019;color:#fff;font:inherit}.form textarea{min-height:120px}.form label{color:var(--muted);font-size:.92rem}.form button{cursor:pointer;border:0}.page-hero{padding:76px 0 48px;background:radial-gradient(circle at 80% 0,rgba(79,195,255,.17),transparent 34%),var(--bg)}.steps{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;border:1px solid var(--border);border-radius:18px;padding:18px;background:rgba(255,255,255,.04)}.step:before{content:counter(step);display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--sky);color:#061018;font-weight:900;margin-right:10px}.footer{background:#070a0e;border-top:1px solid var(--border);padding:42px 0;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:24px}.footer a{display:block;color:var(--muted);margin:6px 0}.footer a:hover{color:#fff}.notice{font-size:.85rem;color:var(--muted)}.mobile-menu{display:none}@media(max-width:900px){.nav-links{display:none}.mobile-menu{display:inline-flex}.hero-grid,.feature,.contact-panel,.grid-2{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr}.services-grid{grid-template-columns:repeat(2,1fr)}.gallery{grid-template-columns:repeat(2,1fr)}.trust-strip{grid-template-columns:repeat(2,1fr)}.hero{padding:68px 0 48px}.topbar .container{flex-direction:column;gap:4px}.hero-card{order:-1}}@media(max-width:520px){.services-grid,.gallery,.trust-strip{grid-template-columns:1fr}.hero-actions .btn{width:100%}.section{padding:56px 0}}
/* ===== FOOTER LAYOUT ===== */

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 34px;
}

.footer-grid > div:first-child {
    grid-column: 1 / -1;
    max-width: 760px;
}

@media (max-width: 900px) {

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid > div:first-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 520px) {

    .footer-grid {
        grid-template-columns: 1fr;
    }
}
.site-logo {
    height: 42px;
    width: auto;
    display: block;
}
/* ===== HERO IMAGES ===== */

.home-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/Bosch+5800i+5KW.webp') center/cover;
}

.heat-pump-hero {
  background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url("/images/Bosch+5800i+5KW.webp") center/cover no-repeat;
}

@media (max-width: 768px) {
  .heat-pump-hero {
    background:
      linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
      url("/images/bosch-5800i-5kw-mobile.webp") center top/cover no-repeat;
  }
}

.heat-geek-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/Vaillant AroTherm Plus 5KW installed in back garden.webp') center/cover;
}

.aircon-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/Samsung Cebu air con indoor unit in garden room.webp') center/cover;
}

.about-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/vector team installing a heat pump.webp') center/cover;
}
.boiler-installation-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/Vector engineer installing a boiler.webp') center/cover;
}

.boiler-servicing-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/Vector engineer servicing boiler.webp') center/cover;
}
.commercial-hero{
    background:
    linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
    url('/images/Vector engineers on site.webp') center/cover;
}
.mobile-menu {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255,255,255,.04);
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 0 10px;
    cursor: pointer;
}

.mobile-menu span {
    display: block;
    height: 2px;
    width: 100%;
    background: #fff;
    border-radius: 999px;
}

.mobile-nav {
    display: none;
    border-top: 1px solid var(--border);
    background: rgba(11,15,20,.98);
    padding: 14px 4vw 20px;
}

.mobile-nav a {
    display: block;
    padding: 12px 0;
    color: var(--muted);
    font-weight: 700;
}

.mobile-nav a:hover {
    color: #fff;
}

@media (max-width: 900px) {
    .nav-links,
    .header-call {
        display: none;
    }

    .mobile-menu {
        display: flex;
    }

    body.menu-open .mobile-nav {
        display: block;
    }
}
.hp-checker {
  display: grid;
  gap: 18px;
}

.hp-checker label {
  display: block;
  margin-bottom: 8px;
  font-weight: 800;
}

.hp-checker select {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  background: #ffffff;
  color: #111111;
  font: inherit;
}

.hp-checker select:focus {
  outline: 2px solid #4fc3ff;
  outline-offset: 2px;
}

.hp-result {
  margin-top: 18px;
  padding: 18px;
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
}

.hp-result:empty {
  display: none;
}

.help-text {
  margin-top: 8px;
  font-size: 14px;
  color: #c7d0dc;
}
.showcase-image{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:16px;
    display:block;
}

.photo-gallery{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:24px;
    margin-top:32px;
}

.photo-gallery img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:16px;
    display:block;
    transition:transform .3s ease;
}

.photo-gallery img:hover{
    transform:scale(1.03);
}

.contact-map-section {
  padding: 5px 0;
  background: #f6f8fb;
}

.contact-map {
  width: 100%;
  height: 460px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.14);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

@media (max-width: 700px) {
  .contact-map {
    height: 340px;
    border-radius: 18px;
  }
}
.sweep-leaderboard {
  max-width: 760px;
  margin: 0 auto;
}

.sweep-leaderboard h2 {
  font-size: clamp(2rem, 8vw, 3.2rem);
  margin: 0 0 12px;
  letter-spacing: -0.05em;
}

.sweep-cards {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.sweep-person-card {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(255,255,255,.07), rgba(79,195,255,.04));
}

.sweep-rank {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.35rem;
  background: rgba(255,255,255,.12);
  color: #fff;
}

.sweep-rank.rank-1 {
  background: #ffd43b;
  color: #111;
}

.sweep-rank.rank-2 {
  background: #d8dee9;
  color: #111;
}

.sweep-rank.rank-3 {
  background: #d88a2d;
  color: #111;
}

.sweep-person-main {
  min-width: 0;
}

.sweep-person-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.sweep-person-head strong {
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.sweep-person-head span {
  font-size: 2rem;
  font-weight: 900;
}

.sweep-teams {
  display: grid;
  gap: 2px;
}

.sweep-team-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  font-size: 1.15rem;
}

.sweep-prize {
  margin-top: 10px;
  color: var(--warm2);
  font-weight: 900;
}

@media (max-width: 520px) {
  .sweep-person-card {
    grid-template-columns: 48px 1fr;
    gap: 14px;
    padding: 18px;
  }

  .sweep-rank {
    width: 42px;
    height: 42px;
    font-size: 1.15rem;
  }

  .sweep-person-head strong {
    font-size: 1.3rem;
  }

  .sweep-person-head span {
    font-size: 1.8rem;
  }

  .sweep-team-row {
    grid-template-columns: 90px 1fr;
    font-size: 1.08rem;
  }
}
.accordion {
    display: grid;
    gap: .75rem;
    margin-top: 1.25rem;
}

.accordion details {
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 14px;
    padding: 0;
    background: rgba(255,255,255,.035);
    overflow: hidden;
}

.accordion summary {
    cursor: pointer;
    padding: 1rem 1.1rem;
    font-weight: 800;
    list-style: none;
}

.accordion summary::-webkit-details-marker {
    display: none;
}

.accordion summary::after {
    content: "+";
    float: right;
    font-weight: 900;
}

.accordion details[open] summary::after {
    content: "–";
}

.accordion .answer {
    padding: 0 1.1rem 1.1rem;
}
.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.project-gallery img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 16px;
    display: block;
    transition: transform .3s ease;
}

.project-gallery img:hover {
    transform: scale(1.03);
}
.project-gallery img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:16px;
    display:block;
    transition:all .3s ease;
    border:1px solid rgba(255,255,255,.08);
}

.project-gallery img:hover{
    transform:translateY(-4px);
    border-color:rgba(79,195,255,.35);
}
.gallery-cta {
    margin-top: 32px;
}
.btn-outline-sky{
    border:1px solid var(--sky);
    background:rgba(79,195,255,.08);
    color:#fff;
}

.btn-outline-sky:hover{
    background:rgba(79,195,255,.16);
}
.btn-outline-sky{
    border:1px solid var(--sky);
    background:rgba(79,195,255,.08);
    color:#fff;
    transition:.2s;
}
.article-container {
  max-width: 900px;
}

.article-featured-image {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border-radius: 22px;
  margin: 24px 0;
  display: block;
}

.lead {
  font-size: 1.15rem;
  line-height: 1.7;
}

.article-container p a,
.article-container .answer a {
  color: #38bdf8;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.article-container p a:hover,
.article-container .answer a:hover {
  color: #7dd3fc;
}

.article-container blockquote {
  margin: 28px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--sky);
  background: rgba(79,195,255,.08);
  border-radius: 0 14px 14px 0;
}

.article-container blockquote p {
  margin: 0;
  color: #e6f7ff;
  font-weight: 700;
}

.cta-card {
  margin-top: 42px;
  padding: 32px;
  border-radius: 24px;
  background: linear-gradient(135deg, #08121f, #142436);
}

.insight-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 34px;
}

.filter-btn {
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
}

.filter-btn.active,
.filter-btn:hover {
  background: #f68928;
  border-color: #f68928;
  color: #111;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.insight-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px;
  overflow: hidden;
}

.insight-card a {
  color: inherit;
  text-decoration: none;
  display: block;
  height: 100%;
}

.insight-card-content {
  padding: 22px;
}

.insight-badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(246,137,40,.16);
  color: #f68928;
  font-size: .82rem;
  font-weight: 800;
}

.insight-card h3 {
  margin: 0 0 10px;
}

.insight-card p {
  margin: 0 0 16px;
}

.text-link {
  font-weight: 800;
  color: #f68928;
}

.insight-card:hover {
  transform: translateY(-3px);
  transition: .2s ease;
}

@media (max-width: 900px) {
  .insights-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .insights-grid {
    grid-template-columns: 1fr;
  }
}
.booking-wrap{
    max-width: 700px;
    margin: 0 auto;
}

.reqquote{
    width: 100%;
    display: block;
}
.logo-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
    margin-top:42px;
}

.logo-card{
    background:#fff;
    border-radius:16px;
    padding:24px;
    min-height:140px;

    display:flex;
    align-items:center;
    justify-content:center;
}

.logo-card img{
    max-width:100%;
    max-height:80px;
    width:auto;
    height:auto;
    object-fit:contain;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
  margin-top: 24px;
}

.card-grid .card {
  height: 100%;
}

@media (max-width: 800px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}
.complaint-note a {
  color: #38bdf8;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.complaint-note a:hover {
  opacity: 0.85;
}
img {
  max-width: 100%;
  height: auto;
}
@media (max-width: 768px) {
  .topbar {
    display: none;
  }
}

.hero-short {
  display: none;
}

@media (max-width: 768px) {
  .hero-short {
    display: block;
  }

  .hero-long {
    display: none;
  }
}

.hero-short {
  display: none;
}

@media (max-width: 768px) {
  .hero-short {
    display: block;
  }

  .hero-long {
    display: none;
  }

  .page-hero {
    padding-top: 56px;
    padding-bottom: 40px;
  }

  .page-hero h1 {
    font-size: 38px;
    line-height: 1;
    margin-bottom: 14px;
  }

  .page-hero .eyebrow {
    margin-bottom: 12px;
  }

  .hero-actions {
    margin-top: 22px;
    gap: 10px;
  }

  .hero-actions .btn {
    min-height: 48px;
    padding: 12px 18px;
  }
}