/* Hamilton Energy - trade brand refit
   Built around the logo: blue (plumbing/trust), green (renewables),
   orange (heat/boilers/CTA), navy text on clean white.
   Bold sans-serif (Manrope) headings, Inter body.
   Theming lives in :root. */

:root{
  --ink:#0E1B2A;          /* deep navy charcoal text */
  --navy:#102A43;         /* dark navy sections */
  --blue:#0F62A8;         /* primary blue accent (plumbing/trust) */
  --blue-700:#0c4f87;
  --blue-50:#eaf3fb;
  --green:#2C9C57;        /* renewables / efficiency */
  --green-600:#238047;
  --green-50:#e9f6ef;
  --orange:#EE6A1F;       /* heat / boilers / primary CTA */
  --orange-600:#d4571a;
  --orange-50:#fdeee3;
  --orange-btn:#EE6A1F;   /* brand orange for primary CTA button — AA 5.5:1 with navy text */
  --orange-btn-h:#F2853D; /* primary button hover (brighten; navy text stays AA) */
  --bg:#FFFFFF;
  --surface:#F4F6F9;      /* very light grey */
  --surface-2:#EDF1F6;
  --line:#E2E8F0;         /* hairline */
  --line-dark:#26415c;    /* hairline on navy */
  --muted:#586675;        /* muted text */
  --muted-light:#b7c6d6;  /* muted on navy */
  --white:#ffffff;
  --maxw:1180px;
  --radius:10px;
  --shadow:0 8px 24px rgba(16,42,67,.08);
  --shadow-lg:0 16px 40px rgba(16,42,67,.13);
  --font-head:"Manrope","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-body:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
main{display:block}
p a{text-decoration:underline}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;line-height:1.13;color:var(--ink);margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.8vw,3.3rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.35rem)}
h3{font-size:1.25rem;font-weight:700}
p{margin:0 0 1rem}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:74px 0}
.section--tight{padding:50px 0}
.section--paper2{background:var(--surface)}
.section--dark{background:var(--navy);color:#e7eef6}
.section--ink{background:var(--ink);color:#e7eef6}
.section--dark h2,.section--dark h3,.section--ink h2,.section--ink h3{color:#fff}

.eyebrow{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.1em;font-size:.76rem;
  font-weight:700;color:var(--blue);margin:0 0 .9rem;display:flex;align-items:center;gap:.6rem}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:var(--orange)}
.section--dark .eyebrow,.section--ink .eyebrow{color:#7fb6e6}
.section--dark .eyebrow::before,.section--ink .eyebrow::before{background:var(--orange)}
.lead{font-size:1.15rem;color:var(--muted);max-width:64ch}
.section--dark .lead,.section--ink .lead{color:var(--muted-light)}
.center{text-align:center}
.center .eyebrow{justify-content:center}
.center .lead{margin-inline:auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-head);font-weight:700;font-size:1rem;
  padding:.85rem 1.55rem;border-radius:8px;border:2px solid transparent;cursor:pointer;
  transition:transform .12s,background .12s,color .12s,border-color .12s,box-shadow .12s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--orange-btn);color:var(--ink);border-color:var(--orange-btn);box-shadow:0 6px 16px rgba(238,106,31,.28)}
.btn--primary:hover{background:var(--orange-btn-h);border-color:var(--orange-btn-h)}
.btn--call{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn--call:hover{background:var(--blue-700);border-color:var(--blue-700)}
.btn--dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn--whatsapp{background:#25D366;color:#fff;border-color:#25D366}
.btn--whatsapp:hover{background:#1da851;border-color:#1da851;color:#fff}
.wa-ico{width:1.05em;height:1.05em;vertical-align:-.18em;flex:none}
.btn--dark:hover{background:#0a1420}
.btn--outline{background:transparent;color:var(--ink);border-color:#cdd7e2}
.btn--outline:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.section--dark .btn--outline,.section--ink .btn--outline{color:#fff;border-color:rgba(255,255,255,.45)}
.section--dark .btn--outline:hover,.section--ink .btn--outline:hover{background:#fff;color:var(--ink)}
.btn--lg{padding:1rem 1.85rem;font-size:1.05rem}
.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.center .btn-row{justify-content:center}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1.4rem;padding:10px 24px;max-width:var(--maxw);margin:0 auto}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none}
.brand-logo{height:52px;width:auto;display:block}
.brand-logo.hide{display:none}
.brand-fallback{display:none;align-items:center;gap:.65rem}
.brand-logo.hide + .brand-fallback{display:inline-flex}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:30px}
.brand-mark i{display:block;width:6px;border-radius:3px}
.brand-mark i:nth-child(1){height:15px;background:var(--blue)}
.brand-mark i:nth-child(2){height:28px;background:var(--green)}
.brand-mark i:nth-child(3){height:21px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;font-family:var(--font-head);font-weight:800;font-size:1.15rem;color:var(--ink);line-height:1.05}
.brand-text small{font-family:var(--font-body);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav-links{display:flex;align-items:center;gap:1.25rem;list-style:none;margin:0;padding:0;flex-wrap:nowrap}
.nav-links a{color:var(--ink);font-weight:600;font-size:.94rem;white-space:nowrap}
.nav-links a:hover{color:var(--blue);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--blue);box-shadow:inset 0 -2px 0 var(--orange)}
.nav-cta{display:flex;align-items:center;gap:.9rem}
.nav-phone{font-family:var(--font-head);font-weight:800;color:var(--blue);white-space:nowrap;font-size:1rem}
.nav-phone span{display:block;font-size:.6rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

/* Hero */
.hero{border-bottom:1px solid var(--line);background:
  radial-gradient(900px 420px at 92% -10%, var(--blue-50), transparent 62%),
  linear-gradient(180deg,#fff,#fbfcfe)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;padding:56px 24px 64px}
.hero h1{max-width:16ch}
.hero .lead{margin-bottom:.4rem}
.hero-trust{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;margin:1.8rem 0 0;padding:1.4rem 0 0;border-top:1px solid var(--line)}
.hero-trust li{display:flex;align-items:center;gap:.5rem;font-size:.93rem;font-weight:600;color:var(--ink)}
.ti{width:16px;height:16px;border-radius:50%;flex:none;position:relative}
.ti::after{content:"";position:absolute;inset:0;background:no-repeat center/10px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E")}
.ti-blue{background:var(--blue)}.ti-green{background:var(--green)}.ti-orange{background:var(--orange)}
.hero-media{position:relative}
.media-ph{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  min-height:380px;display:grid;place-items:center;text-align:center;padding:1.5rem;color:var(--muted);
  background-image:linear-gradient(135deg,var(--surface),var(--surface-2))}
.media-ph--dark{min-height:380px;border-color:var(--line-dark);color:var(--muted-light);
  background-image:linear-gradient(135deg,#14304a,#0f2438)}
.media-ph .tag{font-family:var(--font-head);font-weight:700;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  background:var(--ink);color:#fff;padding:.3rem .7rem;border-radius:5px;display:inline-block;margin-bottom:.7rem}
.media-ph small{display:block;max-width:32ch;margin:0 auto;font-size:.85rem}

/* Assurance strip */
.assure-strip{border-bottom:1px solid var(--line);background:var(--ink)}
.assure-strip .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;padding-top:16px;padding-bottom:16px}
.assure-strip .item{display:flex;align-items:center;gap:.55rem;font-weight:600;font-size:.93rem;color:#dbe6f1}
.assure-strip .item .d{width:9px;height:9px;border-radius:50%;background:var(--orange)}

/* Service rows */
.srv-list{margin-top:2rem;border-top:1px solid var(--line)}
.srv-row{display:grid;grid-template-columns:auto 1fr auto;gap:1.6rem;align-items:center;
  padding:1.5rem .4rem;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;
  transition:background .15s,padding .15s,box-shadow .15s}
.srv-row:hover{text-decoration:none;background:var(--surface);padding-left:1rem;box-shadow:inset 4px 0 0 var(--orange)}
.srv-row .num{font-family:var(--font-head);font-size:1rem;font-weight:800;color:var(--blue);min-width:2.4rem}
.srv-row .body h3{margin:0 0 .25rem}
.srv-row .body p{margin:0;color:var(--muted);font-size:.97rem;max-width:62ch}
.srv-row .arrow{font-size:1.4rem;color:var(--orange);transition:transform .15s}
.srv-row:hover .arrow{transform:translateX(5px)}

/* Two-column feature panels */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:2rem}
.panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow)}
.panel h3{font-size:1.45rem;font-weight:800}
.panel ul{list-style:none;padding:0;margin:1rem 0 0}
.panel li{padding:.5rem 0 .5rem 1.7rem;position:relative;border-bottom:1px solid var(--line);color:var(--muted)}
.panel li:last-child{border-bottom:0}
.panel li::before{content:"";position:absolute;left:0;top:.85em;width:9px;height:9px;border-radius:50%;background:var(--green)}
.section--dark .panel{background:rgba(255,255,255,.04);border-color:var(--line-dark);box-shadow:none}
.section--dark .panel li{color:var(--muted-light);border-color:var(--line-dark)}

/* Process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:2.4rem}
.step .n{font-family:var(--font-head);font-size:1.6rem;font-weight:800;color:#fff;line-height:1;display:grid;place-items:center;
  width:46px;height:46px;border-radius:10px;background:var(--blue);margin-bottom:.9rem}
.step:nth-child(2) .n{background:var(--green)}
.step:nth-child(3) .n{background:var(--orange)}
.step:nth-child(4) .n{background:var(--ink)}
.step h3{font-size:1.12rem;margin-bottom:.3rem;font-weight:700}
.step p{color:var(--muted);font-size:.94rem;margin:0}
.section--dark .step p,.section--ink .step p{color:var(--muted-light)}

/* Split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.split.rev .txt{order:2}

/* Quotes / proof */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:2rem}
.qcard{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem;box-shadow:var(--shadow);
  border-top:4px solid var(--blue)}
.qcard:nth-child(2){border-top-color:var(--green)}
.qcard:nth-child(3){border-top-color:var(--orange)}
.qcard .stars{color:var(--orange);letter-spacing:2px;margin-bottom:.5rem;font-size:.95rem}
.qcard p{font-size:1rem;margin:0 0 1rem}
.qcard .by{font-size:.86rem;color:var(--muted);font-weight:700}
.placeholder-note{font-size:.8rem;color:var(--muted);font-style:italic}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:2rem}
.gallery .media-ph{min-height:210px}

/* Areas */
.areas{columns:4;column-gap:1.5rem;list-style:none;padding:0;margin:1.6rem 0 0}
.areas li{padding:.4rem 0 .4rem 1.4rem;color:var(--muted);break-inside:avoid;border-bottom:1px solid var(--line);position:relative}
.areas li::before{content:"";position:absolute;left:0;top:.95em;width:7px;height:7px;border-radius:50%;background:var(--blue)}
.section--dark .areas li{color:var(--muted-light);border-color:var(--line-dark)}

/* FAQ */
.faq{max-width:840px;margin:2rem auto 0}
.faq details{border:1px solid var(--line);border-radius:10px;padding:0 1.1rem;margin-bottom:.7rem;background:#fff}
.faq summary{cursor:pointer;font-family:var(--font-head);font-size:1.05rem;font-weight:700;padding:1rem 0;
  list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--orange);font-size:1.5rem;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);margin-top:-.3rem;padding-bottom:1.1rem}

/* Page hero (interior) */
.page-hero{background:var(--navy);color:#e7eef6;padding:60px 0;
  background-image:radial-gradient(700px 320px at 88% -20%, rgba(238,106,31,.16), transparent 60%)}
.page-hero h1{color:#fff;max-width:20ch}
.page-hero p{color:var(--muted-light);max-width:64ch}
.crumbs{font-size:.82rem;color:#8fb2d4;margin-bottom:1rem}
.crumbs a{color:#8fb2d4}
.page-hero .btn--outline{color:#fff;border-color:rgba(255,255,255,.55)}
.page-hero .btn--outline:hover{background:#fff;color:var(--ink)}

/* Prose */
.prose{max-width:760px}
.prose h2{margin-top:2rem}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.5rem}

/* Form */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:start}
form.enquiry{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow)}
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.4rem}
.field input,.field select,.field textarea{width:100%;padding:.75rem .85rem;border:1px solid var(--line);
  border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.field .req{color:#c0392b}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.field.check{display:flex;gap:.6rem;align-items:flex-start}
.field.check input{width:auto;margin-top:.35rem}
.hp{position:absolute;left:-9999px}
.form-note{font-size:.86rem;color:var(--muted)}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem}
.aside-card h3{margin-top:0;font-weight:800}
.aside-card .big{font-size:1.4rem;font-weight:800;color:var(--blue);font-family:var(--font-head)}
.aside-card ul{list-style:none;padding:0;margin:1rem 0 0}
.aside-card li{padding:.4rem 0 .4rem 1.6rem;position:relative;color:var(--muted)}
.aside-card li::before{content:"";position:absolute;left:0;top:.8em;width:8px;height:8px;border-radius:50%;background:var(--green)}

/* Footer */
.site-footer{background:var(--ink);color:#aebccb;padding:60px 0 26px;font-size:.95rem}
.site-footer h3{color:#fff;font-family:var(--font-head);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:1rem;font-weight:800}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:2.4rem}
.site-footer a{color:#aebccb}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.5rem}
.footer-brand{display:flex;align-items:center;gap:.6rem;margin-bottom:.9rem}
.footer-logo{height:50px;width:auto;background:#fff;padding:8px 12px;border-radius:10px;display:block}
.footer-logo.hide{display:none}
.footer-fallback{display:none;align-items:center;gap:.6rem}
.footer-logo.hide + .footer-fallback{display:inline-flex}
.footer-wordmark{font-family:var(--font-head);font-size:1.2rem;color:#fff;font-weight:800}
.footer-bottom{border-top:1px solid var(--line-dark);margin-top:2.4rem;padding-top:1.4rem;font-size:.82rem;
  display:flex;flex-wrap:wrap;gap:.6rem;justify-content:space-between;color:#7e8ea0}
.footer-bottom a{color:#7e8ea0}

/* Sticky mobile call bar */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--white);
  border-top:1px solid var(--line);padding:.55rem .7rem;gap:.6rem;box-shadow:0 -6px 20px rgba(0,0,0,.12)}
.mobile-bar .btn{flex:1;justify-content:center;padding:.85rem}

/* Cookie banner */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:70;max-width:560px;margin:0 auto;
  background:var(--ink);color:#e7eef6;border-radius:12px;padding:1.2rem 1.3rem;box-shadow:var(--shadow-lg);display:none}
.cookie.show{display:block}
.cookie p{font-size:.9rem;margin:0 0 .9rem;color:#cdd9e6}
.cookie a{color:#7fb6e6}
.cookie .row{display:flex;gap:.6rem;flex-wrap:wrap}
.cookie .btn{padding:.6rem 1.1rem;font-size:.92rem}

/* Responsive */
@media(max-width:1100px){
  .nav-links{position:fixed;inset:70px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;border-bottom:1px solid var(--line);box-shadow:var(--shadow);max-height:0;overflow:hidden;transition:max-height .25s}
  .nav-links.open{max-height:620px}
  .nav-links li{border-top:1px solid var(--line)}
  .nav-links a{display:block;padding:.95rem 24px}
  .nav-links a[aria-current="page"]{box-shadow:inset 4px 0 0 var(--orange)}
  .nav-toggle{display:block}
  .nav .nav-phone{display:none}
  .nav{gap:.6rem}
  .brand{margin-right:auto}
  .nav-cta{order:2}
  .nav-toggle{order:3}
  .steps{grid-template-columns:repeat(2,1fr)}
  .areas{columns:3}
}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:2rem;padding-top:36px}
  .hero-media{order:-1}
  .media-ph,.media-ph--dark{min-height:240px}
  .duo,.split,.quote-grid,.gallery,.contact-grid{grid-template-columns:1fr}
  .split.rev .txt{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .areas{columns:2}
  .section{padding:54px 0}
}
@media(max-width:560px){
  body{font-size:16px;padding-bottom:70px}
  .steps,.row-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .areas{columns:1}
  .srv-row{grid-template-columns:auto 1fr;gap:1rem}
  .srv-row .arrow{display:none}
  .mobile-bar{display:flex}
  .assure-strip .wrap{gap:.5rem 1.1rem}
  .brand-mark{height:26px}
  .brand-logo{height:44px}
  .nav-cta{display:none}
  .cookie{left:12px;right:12px;bottom:84px}
}

/* Form helper text + result states */
.hint{display:block;font-size:.82rem;color:var(--muted);margin-top:.35rem}
.form-result{font-size:.92rem;border-radius:8px;padding:.8rem 1rem;font-weight:600}
.form-result.is-ok{background:var(--green-50);color:var(--green-600);border:1px solid #bfe3cd}
.form-result.is-error{background:var(--orange-50);color:var(--orange-600);border:1px solid #f6cfb4}

/* Real photo in a media slot, with graceful fallback to the placeholder */
.media-photo{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.media-photo.hide{display:none}
.media-ph.photo-fallback{display:none}
.media-photo.hide + .media-ph.photo-fallback{display:grid}

/* Hero photo (full scene, not cropped) */
.hero-photo{width:100%;height:auto;display:block;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.hero-photo.hide{display:none}
.hero-photo.hide + .media-ph.photo-fallback{display:grid}

/* anchor offset under sticky header */
section[id]{scroll-margin-top:88px}

/* Cookie banner: make the Decline (outline) button readable on the dark banner */
.cookie .btn--outline{color:#fff;border-color:rgba(255,255,255,.55)}
.cookie .btn--outline:hover{background:#fff;color:var(--ink)}