/* =========================================================
   Best EPC — shared stylesheet (bestepc.co.uk)
   Palette derived from the official EPC A–G band colours.
   ========================================================= */
:root{
  --green-900:#06301f; --green-700:#0b7a4b; --green-500:#19b459; --green-100:#e3f5ea;
  --amber:#f5b700; --ink:#14241c; --muted:#5a6b62; --bg:#f7f9f6; --surface:#ffffff; --line:#dde7e0;
  --band-a:#008054; --band-b:#19b459; --band-c:#8dce46; --band-d:#ffd500; --band-e:#fcaa65; --band-f:#ef8023; --band-g:#e9153b;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Figtree",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,.display{font-family:"Space Grotesk",sans-serif;letter-spacing:-.02em;line-height:1.1}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.eyebrow{font-family:"Space Grotesk";font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--green-700)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-family:"Space Grotesk";padding:.85rem 1.5rem;border-radius:999px;transition:transform .15s ease,box-shadow .15s ease;border:2px solid transparent;cursor:pointer}
.btn:focus-visible{outline:3px solid var(--green-900);outline-offset:2px}
.btn-primary{background:var(--green-700);color:#fff;box-shadow:0 6px 18px rgba(11,122,75,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(11,122,75,.34)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--green-500);transform:translateY(-2px)}
.btn-white{background:#fff;border-color:#fff;color:var(--green-900)}

/* utility bar */
.util{background:var(--green-900);color:#dff3e8;font-size:.86rem}
.util .wrap{display:flex;justify-content:space-between;align-items:center;padding:.5rem 24px;gap:1rem}
.util a{font-weight:600;color:#fff}
.util .dot{color:var(--green-500)}
@media(max-width:680px){.util .hide-sm{display:none}}

/* header + nav */
header.site{position:sticky;top:0;z-index:50;background:rgba(247,249,246,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;padding:1rem 24px}
.logo{display:flex;align-items:center;gap:.6rem;font-family:"Space Grotesk";font-weight:700;font-size:1.25rem;color:var(--green-900)}
.logo .mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--green-500),var(--green-700));display:grid;place-items:center;color:#fff;font-weight:700;font-size:1rem;flex:none}
nav.main{display:flex;gap:1.3rem;align-items:center}
nav.main a.navlink{font-weight:500;font-size:.92rem;color:var(--ink)}
nav.main a.navlink:hover,nav.main a.navlink.active{color:var(--green-700)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
@media(max-width:920px){
  .nav-toggle{display:block}
  nav.main{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:.2rem;background:var(--bg);border-bottom:1px solid var(--line);padding:1rem 24px;display:none}
  nav.main.open{display:flex}
  nav.main a.navlink{padding:.5rem 0;width:100%}
  nav.main .btn{margin-top:.5rem}
}

/* hero (home) */
.hero{padding:72px 0 64px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.5rem);font-weight:700;margin:.7rem 0 1.1rem}
.hero p.lead{font-size:1.12rem;color:var(--muted);max-width:34ch;margin-bottom:1.8rem}
.cta-row{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:1.8rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{font-size:.82rem;font-weight:600;color:var(--green-900);background:var(--green-100);padding:.4rem .8rem;border-radius:999px;display:inline-flex;align-items:center;gap:.4rem}
.chip svg{width:14px;height:14px}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:40px}.hero p.lead{max-width:none}}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(135deg,var(--green-100),var(--bg));border-bottom:1px solid var(--line);padding:64px 0 56px}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);font-weight:700;margin:.6rem 0 1rem;max-width:20ch}
.page-hero p{font-size:1.12rem;color:var(--muted);max-width:60ch;margin-bottom:1.6rem}

/* rating card */
.rating-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 24px 60px -28px rgba(6,48,31,.45)}
.rating-card .rc-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}
.rating-card .rc-head strong{font-family:"Space Grotesk";font-size:1.05rem}
.rating-card .rc-head span{font-size:.78rem;color:var(--muted)}
.scale{display:flex;flex-direction:column;gap:7px;margin-top:14px}
.band{display:flex;align-items:center;height:34px;border-radius:7px;color:#0a2417;font-weight:700;font-family:"Space Grotesk";padding:0 12px;position:relative;transform-origin:left center;animation:grow .7s cubic-bezier(.2,.8,.2,1) backwards}
.band .letter{width:22px}
.band .range{font-size:.78rem;font-weight:600;opacity:.8;font-family:"Figtree"}
.band.a{background:var(--band-a);color:#fff;width:46%;animation-delay:.05s}
.band.b{background:var(--band-b);width:56%;animation-delay:.12s}
.band.c{background:var(--band-c);width:66%;animation-delay:.19s}
.band.d{background:var(--band-d);width:76%;animation-delay:.26s}
.band.e{background:var(--band-e);width:86%;animation-delay:.33s}
.band.f{background:var(--band-f);width:93%;animation-delay:.40s}
.band.g{background:var(--band-g);color:#fff;width:100%;animation-delay:.47s}
.band.active{box-shadow:0 0 0 3px #fff,0 0 0 6px currentColor}
.band .you{position:absolute;right:10px;background:#06301f;color:#fff;font-family:"Figtree";font-size:.68rem;font-weight:700;padding:.15rem .5rem;border-radius:999px}
@keyframes grow{from{transform:scaleX(.2);opacity:0}to{transform:scaleX(1);opacity:1}}
@media(prefers-reduced-motion:reduce){.band{animation:none}}

/* trust strip */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:30px 24px;text-align:center}
.trust .stat{font-family:"Space Grotesk";font-size:1.5rem;font-weight:700;color:var(--green-700)}
.trust .lbl{font-size:.85rem;color:var(--muted)}
@media(max-width:680px){.trust .wrap{grid-template-columns:repeat(2,1fr);gap:22px}}

/* sections */
section{padding:76px 0}
.sec-head{max-width:62ch;margin-bottom:42px}
.sec-head h2{font-size:clamp(1.7rem,3vw,2.3rem);font-weight:700;margin:.6rem 0 .7rem}
.sec-head p{color:var(--muted);font-size:1.05rem}
.prose p{margin-bottom:1.1rem;font-size:1.04rem}
.prose h2{font-size:clamp(1.5rem,2.6vw,2rem);margin:2rem 0 .8rem}
.prose h3{font-size:1.25rem;margin:1.4rem 0 .5rem}
.prose ul{margin:0 0 1.1rem 1.2rem}
.prose li{margin-bottom:.4rem}
.prose a{color:var(--green-700);font-weight:600;text-decoration:underline}
.layout{display:grid;grid-template-columns:1.6fr .9fr;gap:48px;align-items:start}
@media(max-width:860px){.layout{grid-template-columns:1fr;gap:32px}}
.aside{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;position:sticky;top:90px}
.aside h3{font-size:1.1rem;margin-bottom:.4rem}
.aside .price{font-family:"Space Grotesk";font-size:2rem;font-weight:700;color:var(--green-700);margin:.2rem 0 .6rem}
.aside p{color:var(--muted);font-size:.92rem;margin-bottom:1rem}
.aside .btn{width:100%;justify-content:center;margin-bottom:.5rem}

/* why grid */
.why{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.why .item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px}
.why .item h3{font-size:1.15rem;margin-bottom:.4rem;display:flex;align-items:center;gap:.6rem}
.why .item .ic{width:34px;height:34px;border-radius:9px;background:var(--green-100);display:grid;place-items:center;flex:none}
.why .item .ic svg{width:18px;height:18px;stroke:var(--green-700);fill:none}
.why .item p{color:var(--muted);font-size:.97rem}
@media(max-width:680px){.why{grid-template-columns:1fr}}

/* services grid */
.services{background:var(--green-900);color:#eaf6ef}
.services .sec-head h2{color:#fff}.services .sec-head p{color:#a9c7b8}.services .eyebrow{color:var(--green-500)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:26px;transition:background .2s;display:block}
.svc:hover{background:rgba(255,255,255,.09)}
.svc h3{font-size:1.15rem;color:#fff;margin-bottom:.4rem}
.svc p{color:#a9c7b8;font-size:.93rem;margin-bottom:.8rem}
.svc .price{font-family:"Space Grotesk";font-weight:700;color:var(--green-500)}
@media(max-width:780px){.svc-grid{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.step .num{font-family:"Space Grotesk";font-size:2.6rem;font-weight:700;color:var(--green-500);line-height:1}
.step h3{font-size:1.2rem;margin:.5rem 0 .4rem}
.step p{color:var(--muted);font-size:.97rem}
@media(max-width:780px){.steps{grid-template-columns:1fr;gap:22px}}

/* areas */
.pill-row{display:flex;flex-wrap:wrap;gap:.6rem}
.area-pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:.55rem 1.1rem;font-weight:500;font-size:.95rem}
.area-pill:hover{border-color:var(--green-500);color:var(--green-700)}

/* price cta */
.pricecta{background:linear-gradient(135deg,var(--green-700),var(--green-900));color:#fff;border-radius:24px;padding:48px;text-align:center}
.pricecta .big{font-family:"Space Grotesk";font-size:clamp(2.4rem,6vw,3.6rem);font-weight:700;color:var(--amber)}
.pricecta h2{font-size:1.9rem;margin:.4rem 0 .6rem;color:#fff}
.pricecta p{color:#cfe6da;max-width:46ch;margin:0 auto 1.6rem}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 22px;margin-bottom:12px}
.faq summary{font-family:"Space Grotesk";font-weight:600;font-size:1.05rem;padding:18px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--green-700);font-weight:400;flex:none}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);padding:0 0 18px}

/* contact form */
.cform{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px}
.cform label{display:block;font-weight:600;font-size:.9rem;margin:.9rem 0 .35rem}
.cform input,.cform textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:.8rem;font-family:inherit;font-size:1rem;background:var(--bg)}
.cform input:focus,.cform textarea:focus{outline:2px solid var(--green-500);border-color:var(--green-500)}

/* footer */
footer.site{background:var(--green-900);color:#b9d4c5;padding:56px 0 30px;font-size:.95rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:36px}
footer.site h4{font-family:"Space Grotesk";color:#fff;font-size:1rem;margin-bottom:1rem}
footer.site a{color:#b9d4c5}footer.site a:hover{color:#fff}
footer.site ul{list-style:none}footer.site li{margin-bottom:.5rem}
footer.site .brand{display:flex;align-items:center;gap:.6rem;color:#fff;font-family:"Space Grotesk";font-weight:700;font-size:1.2rem;margin-bottom:.8rem}
footer.site .legal{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:.84rem;color:#86a896;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
@media(max-width:780px){footer.site .cols{grid-template-columns:1fr;gap:28px}}