/* ============================================
   Russell Heating Ltd — Premium Website
   Design: Modern British Quality
   Palette: White + Deep Navy + Copper/Orange
   ============================================ */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  /* Logo-matched palette: blue (water), red-orange (flame), green (leaf) */
  --navy:#0D3B7A;
  --navy-light:#1565C0;
  --orange:#E8501E;
  --orange-hover:#D04518;
  --green:#2E9E48;
  --blue:#1976D2;
  --copper:#E8501E;
  --copper-hover:#D04518;
  --copper-glow:rgba(232,80,30,.25);
  --copper-soft:rgba(232,80,30,.08);
  --white:#FFFFFF;
  --off-white:#F2F6FA;
  --light-grey:#EEF1F5;
  --text:#1a1a2e;
  --text-light:#4a5568;
  --border:#E2E6EC;
  --radius:8px;
  --radius-lg:14px;
  --shadow-sm:0 2px 8px rgba(12,35,64,.06);
  --shadow-md:0 8px 30px rgba(12,35,64,.08);
  --shadow-lg:0 16px 50px rgba(12,35,64,.12);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Montserrat',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);line-height:1.7;background:var(--white);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul{list-style:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.25;color:var(--navy)}
h1{font-size:clamp(1.6rem,3.5vw,2.5rem);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(1.3rem,2.5vw,1.85rem);font-weight:800;letter-spacing:-.01em}
h3{font-size:.95rem;font-weight:700}
p{color:var(--text-light);line-height:1.7;font-size:.88rem}

/* --- Layout --- */
.container{max-width:1100px;margin:0 auto;padding:0 40px}
.section{padding:50px 0}
.section-header{text-align:center;max-width:580px;margin:0 auto 36px}
.section-header p{margin-top:10px;font-size:.88rem}
.accent-bar{width:60px;height:4px;background:linear-gradient(90deg,var(--orange),var(--green));border-radius:4px;margin:16px auto 0}

/* --- Buttons --- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;border-radius:var(--radius);font-weight:600;font-size:.82rem;letter-spacing:.3px;border:none;cursor:pointer;transition:var(--transition);position:relative;overflow:hidden}
.btn-primary{background:var(--copper);color:var(--white)}
.btn-primary:hover{background:var(--copper-hover);transform:translateY(-2px);box-shadow:0 10px 30px var(--copper-glow)}
.btn-outline-w{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.4)}
.btn-outline-w:hover{background:var(--white);color:var(--navy);border-color:var(--white)}
.btn-outline{background:transparent;color:var(--navy);border:2px solid var(--border)}
.btn-outline:hover{border-color:var(--copper);color:var(--copper)}
.btn-navy{background:var(--navy);color:var(--white)}
.btn-navy:hover{background:var(--navy-light);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn svg{transition:transform .3s}
.btn:hover svg{transform:translateX(3px)}

/* --- Top Bar --- */
.topbar{background:var(--navy);color:rgba(255,255,255,.85);font-size:.74rem;padding:8px 0;letter-spacing:.3px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:16px}
.topbar a{color:var(--orange);text-decoration:none;font-weight:600;transition:var(--transition)}
.topbar a:hover{color:#ff9142}
.topbar-divider{opacity:.3}
.topbar-badge{display:flex;align-items:center;gap:6px}
.topbar-badge svg{flex-shrink:0}

/* --- Header --- */
.header{background:var(--white);padding:10px 0;position:relative;z-index:100}
.header .container{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;flex-direction:column;gap:0;font-size:1.5rem;font-weight:800;color:var(--navy);letter-spacing:.5px;text-transform:uppercase;line-height:1.2}
.brand-tagline{font-size:.62rem;font-weight:600;color:var(--text-light);letter-spacing:1.5px;text-transform:uppercase;margin-top:1px}
.brand-icon{width:36px;height:36px;background:var(--copper);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin-right:10px}
.brand-logo{width:58px;height:58px;object-fit:contain;margin-right:10px}
.brand:hover{color:var(--copper)}
.header-right{display:flex;align-items:center;gap:12px}
.header-phone{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--navy);font-size:.82rem;padding:6px 12px;border-radius:var(--radius);border:2px solid transparent;transition:var(--transition)}
.header-phone:hover{color:var(--copper);border-color:var(--copper-soft);background:var(--copper-soft)}
.header-phone svg{transition:transform .3s}
.header-phone:hover svg{transform:rotate(12deg) scale(1.1)}

/* --- Navigation --- */
.navbar{background:var(--white);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:99;transition:var(--transition);border-bottom:1px solid var(--border)}
.navbar.scrolled{box-shadow:var(--shadow-md);background:rgba(255,255,255,.97);backdrop-filter:blur(12px)}
.navbar .container{display:flex;align-items:center;justify-content:flex-start}
.nav-links{display:flex;gap:0}
.nav-links a{display:block;padding:14px 14px;font-size:.75rem;font-weight:600;color:var(--navy);letter-spacing:.4px;text-transform:uppercase;border-bottom:3px solid transparent;transition:var(--transition);white-space:nowrap}
.nav-links a:first-child{padding-left:0}
.nav-links a::after{content:'';display:block;width:0;height:3px;background:var(--copper);margin-top:14px;margin-bottom:-17px;transition:width .3s cubic-bezier(.16,1,.3,1)}
.nav-links a:hover,.nav-links a.active{color:var(--copper)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:10px;flex-direction:column;gap:5px;margin-left:auto}
.mobile-toggle span{display:block;width:24px;height:2px;background:var(--navy);border-radius:2px;transition:var(--transition)}

/* --- Nav Dropdown --- */
.nav-dropdown{position:relative}
.nav-dropdown>a{display:flex;align-items:center;gap:4px;padding:14px 14px}
.nav-dropdown>a .dropdown-arrow{display:inline-block;width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:4px solid currentColor;margin-left:2px;transition:transform .3s}
.nav-dropdown:hover>a .dropdown-arrow{transform:rotate(180deg)}
.nav-dropdown-menu{display:none;position:absolute;top:100%;left:0;background:var(--white);min-width:220px;box-shadow:var(--shadow-lg);border-radius:0 0 var(--radius) var(--radius);border-top:3px solid var(--copper);z-index:200;padding:6px 0}
.nav-dropdown:hover .nav-dropdown-menu{display:block}
.nav-dropdown-menu a{display:block;padding:10px 20px;font-size:.75rem;font-weight:600;color:var(--navy);text-transform:uppercase;letter-spacing:.4px;white-space:nowrap;transition:var(--transition);border-bottom:none}
.nav-dropdown-menu a::after{display:none}
.nav-dropdown-menu a:hover{background:var(--off-white);color:var(--copper);padding-left:24px}

/* --- Hero --- */
.hero{background:linear-gradient(135deg,var(--navy) 0%,#082A52 100%);color:var(--white);padding:55px 0 60px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(31,120,255,.08) 0%,transparent 70%);border-radius:50%}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(30,201,113,.06) 0%,transparent 70%);border-radius:50%}
.hero .container{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;position:relative;z-index:1}
.hero-content{max-width:560px}
.hero-tag{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(145deg,rgba(255,255,255,.22) 0%,rgba(200,220,240,.15) 50%,rgba(255,255,255,.10) 100%);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:8px 18px;border-radius:50px;font-size:.72rem;font-weight:600;letter-spacing:.5px;margin-bottom:20px;border:1px solid rgba(255,255,255,.25);border-top:1.5px solid rgba(255,255,255,.5);border-left:1.5px solid rgba(255,255,255,.35);box-shadow:0 8px 32px rgba(0,0,0,.3),inset 0 2px 4px rgba(255,255,255,.12),inset 0 -1px 2px rgba(0,0,0,.1);position:relative;overflow:hidden}
.hero h1{color:var(--white);margin-bottom:12px}
.hero h1 .highlight{color:var(--copper)}
.hero p{color:rgba(255,255,255,.8);font-size:.88rem;margin-bottom:24px;max-width:500px;line-height:1.7}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-badges-stack{display:flex;flex-direction:column;gap:12px;width:240px}
.hero-badge-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:5px;background:linear-gradient(145deg,rgba(255,255,255,.22) 0%,rgba(200,220,240,.15) 50%,rgba(255,255,255,.10) 100%);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.25);border-top:1.5px solid rgba(255,255,255,.5);border-left:1.5px solid rgba(255,255,255,.35);border-radius:var(--radius-lg);padding:20px 20px;transition:var(--transition);box-shadow:0 8px 32px rgba(0,0,0,.3),inset 0 2px 4px rgba(255,255,255,.12),inset 0 -1px 2px rgba(0,0,0,.1);position:relative;overflow:hidden}
.hero-badge-card::before{content:'';position:absolute;top:0;left:0;right:0;height:50%;background:linear-gradient(180deg,rgba(255,255,255,.15) 0%,rgba(255,255,255,.03) 100%);pointer-events:none;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.hero-badge-card::after{content:none}
.hero-badge-card:hover{background:linear-gradient(145deg,rgba(255,255,255,.28) 0%,rgba(200,220,240,.18) 50%,rgba(255,255,255,.12) 100%);transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.35),inset 0 2px 4px rgba(255,255,255,.18),inset 0 -1px 2px rgba(0,0,0,.12)}
.hero-badge-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:2px}
.hero-badge-icon--green{background:var(--green)}
.hero-badge-title{font-size:.9rem;font-weight:800;color:var(--white);line-height:1.2}
.hero-badge-sub{font-size:.72rem;color:rgba(255,255,255,.65);font-weight:500}

/* --- Trust Bar / Accreditations --- */
.accreditations{background:var(--off-white);padding:16px 0;overflow:hidden;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.accred-inner{display:flex;align-items:center;gap:24px}
.accred-label{font-size:.78rem;font-weight:700;color:var(--navy);text-transform:uppercase;letter-spacing:1px;white-space:nowrap;padding-right:24px;border-right:2px solid var(--border)}
.accred-scroll{overflow:hidden;flex:1;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.accred-track{display:flex;gap:48px;animation:slideLogos 40s linear infinite;width:max-content}
.accred-track:hover{animation-play-state:paused}
.accred-item{display:flex;align-items:center;gap:10px;flex-shrink:0;padding:8px 16px;border-radius:var(--radius);cursor:default;opacity:.5;filter:grayscale(30%);transition:var(--transition)}
.accred-item:hover{opacity:1;filter:grayscale(0);transform:scale(1.08);background:var(--white);box-shadow:var(--shadow-sm)}
.accred-item img{height:40px;width:auto;object-fit:contain}
.accred-item svg{flex-shrink:0}
.accred-item span{font-size:.8rem;font-weight:600;color:var(--navy);white-space:nowrap}
@keyframes slideLogos{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* --- Review Stats Bar --- */
.review-stats{background:var(--white);padding:28px 0;border-bottom:1px solid var(--border)}
.review-stats .container{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.review-stat{display:flex;align-items:center;gap:14px;padding:10px 20px;border-radius:var(--radius-lg);transition:var(--transition)}
.review-stat:hover{background:var(--off-white);transform:translateY(-2px)}
.review-stat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-stat-icon svg{width:28px;height:28px}
.review-stat-info{display:flex;flex-direction:column;gap:2px}
.review-stat-stars{display:flex;gap:1px}
.review-stat-stars svg{width:14px;height:14px;fill:#F5A623}
.review-stat-label{font-size:.72rem;color:var(--text-light);font-weight:500}
.review-stat-name{font-size:.82rem;font-weight:700;color:var(--navy)}

/* --- Service Cards --- */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.service-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 22px;text-align:center;transition:var(--transition);position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--orange);transform:scaleX(0);transition:transform .4s cubic-bezier(.16,1,.3,1)}
.service-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(11,42,91,.12);border-color:var(--orange)}
.service-card:hover::before{transform:scaleX(1)}
.service-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--navy),var(--navy-light));border-radius:10px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;transition:var(--transition)}
.service-card:hover .service-icon{transform:scale(1.08);box-shadow:0 4px 20px rgba(11,42,91,.3)}
.service-card:hover .service-icon svg{stroke:var(--white)}
.service-icon svg{stroke:var(--white);transition:var(--transition)}
.service-card h3{margin-bottom:8px}
.service-card p{font-size:.82rem;line-height:1.65;margin-bottom:14px}
.service-link{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;color:var(--copper);transition:var(--transition)}
.service-link:hover{gap:10px}

/* --- CTA Strip --- */
.cta-strip{background:linear-gradient(90deg,var(--orange) 0%,#ff9142 100%);padding:32px 0;position:relative;overflow:hidden}
.cta-strip .container{display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap;position:relative;z-index:1}
.cta-strip h2{color:var(--white);font-size:clamp(1rem,2vw,1.2rem)}
.cta-strip p{color:rgba(255,255,255,.85);margin-top:4px;font-size:.82rem}
.cta-strip .btn-primary,.cta-strip .btn{background:var(--navy);color:var(--white);padding:10px 24px;font-size:.82rem}
.cta-strip .btn-primary:hover,.cta-strip .btn:hover{background:#081e42;transform:translateY(-2px);box-shadow:0 8px 25px rgba(11,42,91,.3)}

/* --- Testimonials Carousel --- */
.testimonials{background:var(--off-white)}
.testimonial-carousel{position:relative;overflow:hidden}
.testimonial-track{display:flex;gap:28px;animation:scrollReviews 70s linear infinite;width:max-content}
.testimonial-track:hover{animation-play-state:paused}
.testimonial-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:var(--transition);position:relative;min-width:360px;max-width:360px;flex-shrink:0}
.testimonial-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}
.testimonial-card .quote-mark{font-size:3rem;line-height:1;color:var(--copper);opacity:.3;font-family:Georgia,serif;margin-bottom:8px}
.testimonial-card .stars{display:flex;gap:2px;margin-bottom:16px}
.testimonial-card .stars svg{fill:#F5A623}
.testimonial-text{font-size:.84rem;color:var(--text);line-height:1.7;margin-bottom:18px;font-style:italic}
.testimonial-source{display:inline-block;font-size:.65rem;font-weight:600;padding:3px 10px;border-radius:20px;margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}
.testimonial-source--checkatrade{background:#e6f9ed;color:#00A651}
.testimonial-source--trustatrader{background:#fff5e6;color:#E8941E}
.testimonial-source--google{background:#e8f0fe;color:#4285F4}
.testimonial-source--trustpilot{background:#e6f9f0;color:#00B67A}
.testimonial-author{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--border)}
.author-avatar{width:38px;height:38px;border-radius:50%;background:var(--navy);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.75rem;flex-shrink:0}
.author-name{font-weight:700;color:var(--navy);font-size:.82rem}
.author-location{font-size:.72rem;color:var(--text-light)}
@keyframes scrollReviews{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* --- About Preview --- */
.about-preview .container{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about-preview-content h2{margin-bottom:16px}
.about-preview-content p{margin-bottom:12px;font-size:.88rem}
.about-values{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.value-item{display:flex;align-items:center;gap:12px;padding:14px;border-radius:var(--radius);background:var(--off-white);transition:var(--transition)}
.value-item:hover{background:var(--copper-soft);transform:translateX(4px)}
.value-item svg{flex-shrink:0;stroke:var(--copper)}
.value-item span{font-weight:600;font-size:.9rem;color:var(--navy)}
.about-visual{position:relative}
.about-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-image img{width:100%;height:400px;object-fit:cover}
.about-floating{position:absolute;bottom:-16px;right:-16px;background:var(--copper);color:var(--white);padding:18px;border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-lg)}
.about-floating .big{font-size:1.6rem;font-weight:800}
.about-floating .small{font-size:.7rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;opacity:.9}

/* --- Footer --- */
.footer{background:var(--navy);color:rgba(255,255,255,.8);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{font-size:1.1rem;font-weight:800;color:var(--white);letter-spacing:.5px;margin-bottom:12px;text-transform:uppercase}
.footer-desc{font-size:.8rem;line-height:1.65;color:rgba(255,255,255,.6);margin-bottom:16px;max-width:300px}
.footer h4{color:var(--white);font-size:.75rem;text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:.8rem;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:var(--copper);transform:translateX(3px)}
.footer-contact-item{display:flex;align-items:flex-start;gap:8px;margin-bottom:10px;font-size:.8rem;color:rgba(255,255,255,.6)}
.footer-contact-item svg{flex-shrink:0;margin-top:2px;stroke:var(--copper)}
.footer-socials{display:flex;gap:12px;margin-top:16px}
.footer-socials a{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);transition:var(--transition)}
.footer-socials a:hover{background:var(--copper);border-color:var(--copper);transform:translateY(-2px)}
.footer-socials a svg{width:18px;height:18px;fill:rgba(255,255,255,.7)}
.footer-socials a:hover svg{fill:var(--white)}
.footer-bottom{padding:18px 0;text-align:center;font-size:.74rem;color:rgba(255,255,255,.4)}

/* --- Page Headers (inner pages) --- */
.page-header{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 100%);color:var(--white);padding:55px 0 42px;text-align:center;position:relative;overflow:hidden}
.page-header::before{content:'';position:absolute;top:0;right:0;width:400px;height:400px;background:radial-gradient(circle,rgba(212,120,47,.1),transparent 70%);border-radius:50%}
.page-header h1{color:var(--white);margin-bottom:12px;position:relative}
.page-header p{color:rgba(255,255,255,.7);font-size:.88rem;max-width:560px;margin:0 auto;position:relative}
.breadcrumb{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:20px;font-size:.82rem;color:rgba(255,255,255,.5);position:relative}
.breadcrumb a{color:rgba(255,255,255,.5);transition:var(--transition)}
.breadcrumb a:hover{color:var(--copper)}

/* --- Forms --- */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:600;font-size:.8rem;color:var(--navy);margin-bottom:5px}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);font-size:.84rem;font-family:inherit;color:var(--text);transition:var(--transition);background:var(--white)}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 4px var(--copper-soft)}
.form-group textarea{resize:vertical;min-height:130px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* --- Contact Grid --- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.contact-info-card{background:var(--off-white);border-radius:var(--radius-lg);padding:28px;margin-bottom:20px}
.contact-info-card h3{margin-bottom:16px}
.contact-detail{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.contact-detail svg{flex-shrink:0;margin-top:2px;stroke:var(--copper)}
.contact-detail strong{display:block;font-size:.9rem;color:var(--navy)}
.contact-detail span{font-size:.88rem;color:var(--text-light)}
.contact-promise{background:var(--copper-soft);border-left:4px solid var(--copper);padding:20px;border-radius:0 var(--radius) var(--radius) 0;margin-top:20px}
.contact-promise p{color:var(--navy);font-weight:600;font-size:.9rem}

/* --- Reviews Page --- */
.review-featured{background:var(--off-white);border-radius:var(--radius-lg);padding:36px;margin-bottom:36px;text-align:center;border:1px solid var(--border)}
.review-featured .quote{font-size:.95rem;font-style:italic;color:var(--text);line-height:1.7;max-width:620px;margin:12px auto 16px}
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}

/* --- Sectors --- */
.sector-card{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:40px;padding:30px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);transition:var(--transition)}
.sector-card:hover{box-shadow:var(--shadow-md);border-color:transparent}
.sector-card:nth-child(even){direction:rtl}
.sector-card:nth-child(even) > *{direction:ltr}
.sector-image{border-radius:var(--radius);overflow:hidden;height:280px}
.sector-image img{width:100%;height:100%;object-fit:cover}
.sector-content h3{font-size:1.05rem;margin-bottom:10px}
.sector-content p{margin-bottom:16px}
.sector-features{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.sector-features li{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--text)}
.sector-features li svg{flex-shrink:0;stroke:var(--copper)}

/* --- Service Detail --- */
.service-detail{margin-bottom:40px;padding:30px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg)}
.service-detail h3{font-size:1.05rem;margin-bottom:10px}
.service-detail p{margin-bottom:16px}
.service-benefits{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.service-benefits li{display:flex;align-items:center;gap:8px;font-size:.9rem}
.service-benefits li svg{flex-shrink:0;stroke:var(--copper)}
.service-faq{margin-top:24px;border-top:1px solid var(--border);padding-top:24px}
.faq-item{margin-bottom:16px}
.faq-item summary{font-weight:600;color:var(--navy);cursor:pointer;padding:10px 0;font-size:.95rem;transition:var(--transition)}
.faq-item summary:hover{color:var(--copper)}
.faq-item p{padding:8px 0 4px;font-size:.9rem}

/* --- Inner Page Grids (Domestic, Commercial, etc.) --- */
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.hero-grid .hero-image{border-radius:var(--radius-lg);overflow:hidden}
.hero-grid .hero-image img{width:100%;height:280px;object-fit:cover}
.hero-grid .hero-content h2{margin-bottom:12px}
.hero-grid .hero-content p{margin-bottom:10px}

.services-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

.diagnostics-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.diagnostics-content h2{margin-bottom:12px}
.diagnostics-content p{margin-bottom:14px}
.diagnostics-features{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.diagnostics-features .feature-item{display:flex;align-items:center;gap:8px;font-size:.85rem;font-weight:500;color:var(--text)}
.diagnostics-features .feature-item svg{flex-shrink:0}
.diagnostics-image{border-radius:var(--radius-lg);overflow:hidden}
.diagnostics-image img{width:100%;height:280px;object-fit:cover}

.faq-grid{max-width:750px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--copper)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer}
.faq-question h4{font-size:.88rem;color:var(--navy);font-weight:700}
.faq-question svg{flex-shrink:0;transition:transform .3s}
.faq-answer{padding:0 20px 16px;display:none}
.faq-answer p{font-size:.84rem}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question svg{transform:rotate(45deg)}

.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-box{text-align:center;padding:28px 20px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--white);transition:var(--transition)}
.feature-box:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--copper)}
.feature-badge{display:inline-flex;align-items:center;justify-content:center;min-width:52px;height:52px;background:linear-gradient(135deg,var(--navy),var(--navy-light));color:var(--white);font-weight:800;font-size:.85rem;border-radius:12px;margin:0 auto 14px;padding:0 10px}
.feature-box h3{margin-bottom:8px}
.feature-box p{font-size:.82rem}

/* --- Commercial: Service Detail Layout --- */
.service-detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.service-detail-image{border-radius:var(--radius-lg);overflow:hidden}
.service-detail-image img{width:100%;height:300px;object-fit:cover}
.service-detail-content h2{margin-bottom:12px}
.service-detail-content h3{margin-top:20px;margin-bottom:10px}
.benefits-list{display:flex;flex-direction:column;gap:10px;padding-left:0;list-style:none}
.benefits-list li{font-size:.84rem;color:var(--text);line-height:1.7;padding-left:16px;position:relative}
.benefits-list li::before{content:'';position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--copper)}

/* --- Benefits Section (commercial, service pages) --- */
.benefits-section{background:var(--off-white);padding:50px 0}
.benefits-section h2{text-align:center;margin-bottom:32px}
.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.benefit-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 22px;text-align:center;transition:var(--transition)}
.benefit-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--copper)}
.benefit-icon{width:48px;height:48px;background:var(--copper-soft);border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.benefit-card h3{font-size:.9rem;margin-bottom:8px}
.benefit-card p{font-size:.82rem}

/* --- Benefit Items (heat-pumps, power-flushing, underfloor, bathrooms) --- */
.benefit-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:var(--transition)}
.benefit-item:hover{border-color:var(--copper);box-shadow:var(--shadow-sm)}
.benefit-number{font-size:1.1rem;font-weight:800;color:var(--copper);margin-bottom:6px}
.benefit-item p{font-size:.84rem}

/* --- FAQ Section (commercial) --- */
.faq-section{padding:50px 0}
.faq-section h2{text-align:center;margin-bottom:32px}
.faq-section .faq-item{background:var(--off-white);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:14px}
.faq-section .faq-item h3{font-size:.9rem;color:var(--navy);margin-bottom:8px}
.faq-section .faq-item p{font-size:.84rem}

/* --- Page Hero Image --- */
.page-hero-image{max-height:300px;overflow:hidden}
.page-hero-image img{width:100%;height:300px;object-fit:cover}

/* --- Service Cards Grid (service pages) --- */
.service-cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--navy),var(--navy-light));border-radius:10px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.card-icon svg{stroke:#fff!important}

/* --- Service Intro / Details --- */
.service-intro h2{margin-bottom:14px}
.service-intro p{margin-bottom:10px;max-width:800px}

/* --- FAQ Content (details/summary pages) --- */
.faq-content{padding:8px 0 4px}
.faq-content p{font-size:.84rem}

/* --- Contact Form --- */
.contact-form{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px}

/* --- Gallery --- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery-grid--large{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.gallery-item{border-radius:var(--radius-lg);overflow:hidden;background:var(--white);border:1px solid var(--border);transition:var(--transition)}
.gallery-item:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.1)}
.gallery-item img{width:100%;height:220px;object-fit:cover;display:block}
.gallery-grid--large .gallery-item img{height:340px}
.gallery-caption{padding:10px 14px;font-size:.78rem;font-weight:600;color:var(--navy);text-align:center}

/* --- Inner Page Responsive --- */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .diagnostics-grid{grid-template-columns:1fr}
  .services-list{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .service-detail-layout{grid-template-columns:1fr}
  .benefits-grid{grid-template-columns:repeat(2,1fr)}
  .service-cards-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .services-list{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .benefits-grid{grid-template-columns:1fr}
  .service-cards-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid--large{grid-template-columns:1fr}
}

/* --- Scroll Reveal --- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-30px);transition:opacity .7s ease,transform .7s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(30px);transition:opacity .7s ease,transform .7s ease}
.reveal-right.visible{opacity:1;transform:translateX(0)}

/* --- Responsive --- */
@media(max-width:1024px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .hero .container{grid-template-columns:1fr;text-align:center}
  .hero-content{max-width:100%}
  .hero p{margin:0 auto 36px}
  .hero-buttons{justify-content:center}
  .hero-visual{max-width:280px;margin:0 auto}
  .hero-badges-stack{width:100%;margin:0 auto}
  .about-preview .container{grid-template-columns:1fr}
  .testimonial-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .sector-card{grid-template-columns:1fr}
  .sector-card:nth-child(even){direction:ltr}
  .reviews-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .topbar{display:none}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--white);flex-direction:column;box-shadow:var(--shadow-lg);border-top:1px solid var(--border)}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 24px;border-bottom:1px solid var(--border)}
  .mobile-toggle{display:flex}
  .nav-dropdown-menu{position:static;box-shadow:none;border-top:none;border-radius:0;min-width:auto;padding:0;display:none}
  .nav-dropdown.open .nav-dropdown-menu{display:block}
  .nav-dropdown-menu a{padding:14px 24px 14px 40px;border-bottom:1px solid var(--border)}
  .services-grid{grid-template-columns:1fr}
  .testimonial-card{min-width:280px;max-width:280px}
  .hero{padding:60px 0 70px}
  .hero-badges-stack{max-width:100%}
  .section{padding:40px 0}
  .cta-strip .container{flex-direction:column;text-align:center}
  .footer-grid{grid-template-columns:1fr}
  .header-phone span{display:none}
  .form-row{grid-template-columns:1fr}
  .about-values{grid-template-columns:1fr}
  .service-benefits{grid-template-columns:1fr}
  .dual-contact-grid{grid-template-columns:1fr !important}
}

/* --- Floating WhatsApp + Call Buttons --- */
.floating-buttons{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:12px;z-index:500}
.floating-btn{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(0,0,0,.25);transition:var(--transition);border:none;cursor:pointer;text-decoration:none}
.floating-btn:hover{transform:scale(1.1);box-shadow:0 6px 28px rgba(0,0,0,.35)}
.floating-btn--whatsapp{background:#25D366}
.floating-btn--whatsapp svg{fill:#fff;width:28px;height:28px}
.floating-btn--call{background:var(--orange)}
.floating-btn--call svg{stroke:#fff;fill:none;width:24px;height:24px}
.floating-btn-label{position:absolute;right:68px;background:var(--navy);color:#fff;font-size:.72rem;font-weight:600;padding:6px 14px;border-radius:var(--radius);white-space:nowrap;opacity:0;pointer-events:none;transition:var(--transition)}
.floating-btn:hover .floating-btn-label{opacity:1}

/* --- Sticky Mobile CTA Bar --- */
.mobile-cta-bar{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--navy);z-index:499;padding:10px 16px;box-shadow:0 -4px 20px rgba(0,0,0,.2)}
.mobile-cta-bar .container{display:flex;gap:8px;padding:0}
.mobile-cta-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border-radius:var(--radius);font-size:.78rem;font-weight:700;text-decoration:none;border:none;cursor:pointer}
.mobile-cta-btn--call{background:var(--orange);color:#fff}
.mobile-cta-btn--whatsapp{background:#25D366;color:#fff}
.mobile-cta-btn--quote{background:var(--white);color:var(--navy)}
.mobile-cta-btn svg{width:18px;height:18px;flex-shrink:0}
@media(max-width:768px){
  .mobile-cta-bar{display:block}
  .floating-buttons{display:none}
  body{padding-bottom:70px}
}

/* --- Quick Quote Form (Homepage) --- */
.quick-quote{background:linear-gradient(135deg,var(--navy) 0%,#082A52 100%);padding:50px 0;position:relative;overflow:hidden}
.quick-quote::before{content:'';position:absolute;top:-30%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(232,80,30,.08) 0%,transparent 70%);border-radius:50%}
.quick-quote .container{position:relative;z-index:1}
.quick-quote-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.quick-quote-text{color:var(--white)}
.quick-quote-text h2{color:var(--white);margin-bottom:12px}
.quick-quote-text p{color:rgba(255,255,255,.75);margin-bottom:20px}
.quick-quote-trust{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.quick-quote-trust-item{display:flex;align-items:center;gap:10px;font-size:.84rem;color:rgba(255,255,255,.85);font-weight:500}
.quick-quote-trust-item svg{flex-shrink:0;width:20px;height:20px}
.quick-quote-form{background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:0 16px 50px rgba(0,0,0,.3)}
.quick-quote-form h3{text-align:center;margin-bottom:20px;font-size:1.05rem}
.qq-field{margin-bottom:14px}
.qq-field label{display:block;font-size:.75rem;font-weight:600;color:var(--navy);margin-bottom:4px}
.qq-field input,.qq-field select,.qq-field textarea{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);font-family:inherit;font-size:.84rem;transition:var(--transition)}
.qq-field input:focus,.qq-field select:focus,.qq-field textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 4px var(--copper-soft)}
.qq-submit{width:100%;padding:14px;background:var(--orange);color:#fff;border:none;border-radius:var(--radius);font-family:inherit;font-size:.9rem;font-weight:700;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;gap:8px}
.qq-submit:hover{background:var(--orange-hover);transform:translateY(-2px);box-shadow:0 8px 24px var(--copper-glow)}
.qq-response-time{text-align:center;margin-top:12px;font-size:.72rem;color:var(--text-light)}
@media(max-width:768px){
  .quick-quote-inner{grid-template-columns:1fr}
}

/* --- Advice & Tips --- */
.advice-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px}
.advice-card{display:flex;gap:20px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;transition:var(--transition);text-decoration:none}
.advice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--orange)}
.advice-card-icon{flex-shrink:0;width:56px;height:56px;background:var(--copper-soft);border-radius:var(--radius);display:flex;align-items:center;justify-content:center}
.advice-card-content{flex:1}
.advice-card-tag{display:inline-block;font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--orange);background:var(--copper-soft);padding:3px 10px;border-radius:20px;margin-bottom:10px}
.advice-card-tag--green{color:var(--green);background:rgba(46,158,72,.08)}
.advice-card-tag--blue{color:var(--blue);background:rgba(25,118,210,.08)}
.advice-card h3{font-size:.95rem;margin-bottom:8px;color:var(--navy);transition:var(--transition)}
.advice-card:hover h3{color:var(--orange)}
.advice-card p{font-size:.82rem;color:var(--text-light);line-height:1.6;margin-bottom:12px}
.advice-card-link{font-size:.8rem;font-weight:700;color:var(--orange);letter-spacing:.3px}
.advice-signup{display:flex;align-items:center;justify-content:space-between;gap:40px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px}
.advice-signup-text{flex:1}
.advice-signup-text h2{margin-bottom:8px}
.advice-signup-cta{display:flex;gap:12px;flex-shrink:0}
@media(max-width:768px){
  .advice-grid{grid-template-columns:1fr}
  .advice-card{flex-direction:column;gap:14px}
  .advice-signup{flex-direction:column;text-align:center;padding:28px}
  .advice-signup-cta{flex-direction:column;width:100%}
}

/* --- Article Page --- */
.article-content{max-width:720px;margin:0 auto}
.article-meta{display:flex;align-items:center;gap:16px;margin-bottom:28px;font-size:.8rem;color:var(--text-light)}
.article-meta svg{flex-shrink:0}
.article-content h2{font-size:1.15rem;margin:32px 0 12px}
.article-content h3{font-size:.95rem;margin:24px 0 10px}
.article-content p{margin-bottom:16px}
.article-content ul,.article-content ol{margin:0 0 16px 24px;color:var(--text-light);font-size:.88rem;line-height:1.7}
.article-content li{margin-bottom:6px}
.article-tip{background:var(--copper-soft);border-left:4px solid var(--orange);border-radius:0 var(--radius) var(--radius) 0;padding:20px 24px;margin:24px 0}
.article-tip strong{color:var(--orange);display:block;margin-bottom:4px;font-size:.82rem;text-transform:uppercase;letter-spacing:.5px}
.article-tip p{margin:0;font-size:.85rem}
.article-cta{background:var(--navy);color:var(--white);border-radius:var(--radius-lg);padding:32px;text-align:center;margin:40px 0}
.article-cta h3{color:var(--white);margin-bottom:8px}
.article-cta p{color:rgba(255,255,255,.75);margin-bottom:20px}
.article-cta .btn{margin:0 6px}
.article-back{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:600;color:var(--orange);margin-bottom:20px}
.article-back:hover{color:var(--orange-hover)}

/* --- Schema / SEO hidden --- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}