/* Comera Energy — design system. Extracted from the approved design sample
   (comeraenergy3.netlify.app). Brand tokens in :root. Fonts self-hosted via
   fonts.css (Archivo + Source Sans 3) — no third-party font requests. */

:root{
  /* Brand palette aligned to comeraenergy.co.uk — sampled approximations.
     If you have exact brand hex codes, swap them here: every page updates. */
  --ink:#0F3229; --ink-2:#154235; --ink-3:#1C5342;   /* deep Comera greens */
  --sun:#7AC143; --sun-deep:#3E7521; --sun-soft:#ECF6E2; /* energy-green accent */
  --bg:#F4F8F4; --card:#FFFFFF; --line:#DCE6DC;
  --body:#3E5147; --muted:#5E7165;
  --radius:14px; --shadow:0 10px 30px rgba(15,50,41,.10);
  --font-display:"Archivo",system-ui,sans-serif;
  --font-body:"Source Sans 3",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{font-family:var(--font-body);font-size:17px;line-height:1.65;color:var(--body);background:var(--bg)}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--sun);outline-offset:2px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
h1,h2,h3{font-family:var(--font-display);color:var(--ink);line-height:1.12;letter-spacing:-.015em}
h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p+p{margin-top:1em}
.eyebrow{font-family:var(--font-display);font-weight:700;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--sun-deep);display:block;margin-bottom:.6rem}

/* ---------- top bar + nav ---------- */
.topbar{background:var(--ink);color:#CFE0D4;font-size:.85rem;padding:.45rem 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.topbar a{color:#fff;font-weight:600}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:.8rem;padding-bottom:.8rem}
/* Official brand lockup (final-kit). aspect-ratio gives the browser a definite
   width from the height, and flex:0 0 auto stops the sticky header squeezing it. */
.logo{display:block;line-height:0;flex:0 0 auto}
.logo img{height:22px;width:auto;aspect-ratio:369.69/29.13;display:block}
/* The official wordmark is ~12.7x wider than tall, so it eats far more header
   width than the old text logo. Nav + CTA are tightened to match, and both step
   down again on mid-width screens before the nav has to scroll. */
@media(max-width:1080px){.logo img{height:19px}}
@media(max-width:560px){.logo img{height:18px}}


nav.main{display:flex;gap:.15rem;overflow-x:auto;-webkit-overflow-scrolling:touch;flex:1 1 auto;min-width:0;scrollbar-width:none}
nav.main::-webkit-scrollbar{display:none}
nav.main a{font-family:var(--font-display);font-weight:600;font-size:.8rem;padding:.5rem .5rem;border-radius:8px;white-space:nowrap;color:var(--ink-2)}
nav.main a:hover{background:var(--bg)}
nav.main a[aria-current="page"]{color:var(--sun-deep);background:var(--sun-soft)}
.btn{display:inline-block;font-family:var(--font-display);font-weight:700;font-size:.95rem;padding:.8rem 1.5rem;border-radius:10px;border:0;cursor:pointer;text-align:center}
.btn-sun{background:var(--sun);color:var(--ink)}
.btn-sun:hover{background:#8CD154}
.btn-ghost{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--ink-3)}
header.site .btn{padding:.6rem 1rem}
header.site .head-cta{white-space:nowrap;flex:0 0 auto}
@media(max-width:1080px){nav.main a{font-size:.76rem;padding:.45rem .4rem}header.site .btn{padding:.55rem .85rem;font-size:.9rem}}
@media(max-width:1020px){header.site .head-cta{display:none}}
/* Mobile menu. The design sample used a horizontally scrollable nav strip, but
   with 8 items and the wider official wordmark it truncates with no affordance.
   Below 880px the nav becomes a proper dropdown (pattern shared with Solar Bristol). */
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:.55rem;border-radius:8px;margin-left:auto}
.nav-toggle span{display:block;width:22px;height:2.5px;background:var(--ink);border-radius:2px;margin:4.5px 0;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(prefers-reduced-motion:reduce){.nav-toggle span{transition:none}}
@media(max-width:880px){
  .nav-toggle{display:block}
  nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;overflow:visible}
  nav.main.open{display:flex}
  nav.main a{font-size:1rem;padding:.85rem 22px;border-radius:0;border-top:1px solid var(--bg)}
}

/* ---------- hero ---------- */
.hero{background:linear-gradient(160deg,var(--ink) 0%,var(--ink-3) 100%);color:#D7E0EF;padding:3.6rem 0 0}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:2.6rem;align-items:start;padding-bottom:3.2rem}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--sun)}
.hero p.lede{font-size:1.15rem;margin:1.1rem 0 1.6rem;max-width:34rem}
.hero .cta-row{display:flex;gap:.8rem;flex-wrap:wrap;align-items:center}
.hero .call-line{color:#fff;font-weight:700}
.hero .call-line a{color:var(--sun)}
.trust-strip{display:flex;gap:1.6rem;flex-wrap:wrap;margin-top:2rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.18)}
.trust-strip div strong{display:block;font-family:var(--font-display);font-size:1.55rem;font-weight:800;color:var(--sun)}
.trust-strip div span{font-size:.85rem;color:#A9C2B2}
@media(max-width:880px){.hero .wrap{grid-template-columns:1fr}}

/* ---------- calculator card ---------- */
.calc{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:1.6rem;color:var(--body)}
.calc h2{font-size:1.25rem;margin-bottom:.2rem}
.calc .sub{font-size:.9rem;color:var(--muted);margin-bottom:1rem}
.calc label{display:block;font-family:var(--font-display);font-weight:600;font-size:.85rem;color:var(--ink);margin:0 0 .3rem}
.calc input,.calc select{width:100%;padding:.7rem .8rem;border:1.5px solid var(--line);border-radius:9px;font:inherit;margin-bottom:.9rem;background:#fff}
.calc .result{background:var(--sun-soft);border:1.5px solid #C8E3AE;border-radius:10px;padding:1rem;margin:.4rem 0 1rem;display:none}
.calc .result strong{font-family:var(--font-display);font-size:1.5rem;color:var(--ink);display:block}
.calc .result span{font-size:.85rem;color:var(--muted)}
.calc .fine{font-size:.75rem;color:var(--muted);margin-top:.7rem}

/* ---------- roofline signature ---------- */
.roofline{display:block;width:100%;height:auto;margin-bottom:-1px}

/* ---------- sections ---------- */
section.band{padding:3.6rem 0}
section.band.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;margin-top:1.8rem}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem;margin-top:1.8rem}
@media(max-width:880px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}
.card h3{margin-bottom:.5rem}
.card .icon{width:44px;height:44px;border-radius:10px;background:var(--sun-soft);display:flex;align-items:center;justify-content:center;margin-bottom:.9rem;color:var(--sun-deep)}
.card a.more{font-family:var(--font-display);font-weight:700;font-size:.88rem;color:var(--sun-deep)}

/* project / case-study cards */
.proj{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.proj .photo{aspect-ratio:16/10;background:linear-gradient(145deg,var(--ink-2),var(--ink-3));position:relative;display:flex;align-items:flex-end;justify-content:center;overflow:hidden}
.proj .photo .panelgrid{position:absolute;inset:auto 12% 18% 12%;height:46%;transform:skewX(-8deg);display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,1fr);gap:4px}
.proj .photo .panelgrid i{background:linear-gradient(160deg,#2C6B4F,#15442F);border:1px solid rgba(122,193,67,.6);border-radius:2px}
.proj .photo .ph-note{position:absolute;top:8px;left:8px;font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;background:rgba(15,50,41,.78);color:#B8E58C;padding:.2rem .5rem;border-radius:6px}
.proj .body{padding:1.2rem 1.3rem 1.4rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.proj .loc{font-family:var(--font-display);font-weight:700;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--sun-deep)}
.proj .stats{display:flex;gap:1.1rem;flex-wrap:wrap;margin-top:auto;padding-top:.7rem;border-top:1px dashed var(--line)}
.proj .stats b{display:block;font-family:var(--font-display);font-size:1.05rem;color:var(--ink)}
.proj .stats small{color:var(--muted);font-size:.75rem}

/* testimonials */
.quote{background:#fff;border:1px solid var(--line);border-left:5px solid var(--sun);border-radius:12px;padding:1.4rem}
.quote .stars{color:#F2A900;letter-spacing:.15em;font-size:.95rem;margin-bottom:.5rem}
.quote footer{margin-top:.8rem;font-family:var(--font-display);font-weight:700;color:var(--ink);font-size:.9rem}
.quote footer span{display:block;font-weight:400;font-family:var(--font-body);color:var(--muted);font-size:.8rem}

/* accreditation strip */
.accreds{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.4rem}
.accreds span{font-family:var(--font-display);font-weight:700;font-size:.8rem;letter-spacing:.05em;border:1.5px solid var(--line);border-radius:999px;padding:.45rem 1rem;background:#fff;color:var(--ink-2)}

/* steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin-top:1.8rem}
@media(max-width:880px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.2rem}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);font-family:var(--font-display);font-weight:800;color:var(--sun-deep);font-size:1.4rem;display:block;margin-bottom:.4rem}
.step h3{font-size:1rem}

/* FAQ */
details.faq{background:#fff;border:1px solid var(--line);border-radius:12px;margin-top:.8rem;overflow:hidden}
details.faq summary{cursor:pointer;font-family:var(--font-display);font-weight:700;color:var(--ink);padding:1.05rem 1.3rem;list-style:none;display:flex;justify-content:space-between;gap:1rem}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";color:var(--sun-deep);font-size:1.3rem;line-height:1}
details.faq[open] summary::after{content:"–"}
details.faq .a{padding:0 1.3rem 1.2rem;color:var(--body)}

/* area chips */
.areas-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:1.6rem}
@media(max-width:880px){.areas-grid{grid-template-columns:1fr}}

/* big CTA band */
.cta-band{background:linear-gradient(150deg,var(--ink),var(--ink-3));border-radius:18px;color:#D7E0EF;padding:2.6rem;display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap;margin:3.4rem auto}
.cta-band h2{color:#fff;margin-bottom:.4rem}
.cta-band .btns{display:flex;gap:.8rem;flex-wrap:wrap}

/* contact form */
form.enquiry{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.8rem}
form.enquiry label{display:block;font-family:var(--font-display);font-weight:600;font-size:.88rem;color:var(--ink);margin:0 0 .3rem}
form.enquiry input,form.enquiry select,form.enquiry textarea{width:100%;padding:.75rem .85rem;border:1.5px solid var(--line);border-radius:9px;font:inherit;margin-bottom:1rem;background:#fff}
form.enquiry .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:640px){form.enquiry .row{grid-template-columns:1fr}}
.form-ok{display:none;background:var(--sun-soft);border:1.5px solid #C8E3AE;border-radius:10px;padding:1rem;margin-bottom:1rem;color:var(--ink);font-weight:600}

/* footer */
footer.site{background:var(--ink);color:#AEC5B6;margin-top:0;padding:3rem 0 5.5rem;font-size:.92rem}
footer.site .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:2rem}
@media(max-width:880px){footer.site .cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){footer.site .cols{grid-template-columns:1fr}}
footer.site h4{font-family:var(--font-display);color:#fff;font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.8rem}
footer.site a{color:#DEEDE2}
footer.site a:hover{color:var(--sun)}
footer.site ul{list-style:none}
footer.site li{margin:.35rem 0}
footer.site .legal{border-top:1px solid rgba(255,255,255,.14);margin-top:2.2rem;padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.82rem;color:#8CA898}
.socials{display:flex;gap:.7rem;margin-top:.8rem}
.socials a{width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.09);display:flex;align-items:center;justify-content:center}
.socials a:hover{background:var(--sun);color:var(--ink)}
.socials svg{width:17px;height:17px;fill:currentColor}

/* sticky mobile CTA */
.mobile-cta{position:fixed;bottom:0;left:0;right:0;z-index:60;display:none;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.mobile-cta a{padding:.95rem;text-align:center;font-family:var(--font-display);font-weight:700}
.mobile-cta .call{background:var(--ink);color:#fff}
.mobile-cta .quote{background:var(--sun);color:var(--ink)}
@media(max-width:1020px){.mobile-cta{display:grid}}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(160deg,var(--ink),var(--ink-3));color:#CFE0D4;padding:3rem 0 2.6rem}
.page-hero h1{color:#fff;max-width:44rem}
.page-hero p{max-width:40rem;margin-top:.8rem;font-size:1.08rem}
.breadcrumb{font-size:.8rem;margin-bottom:1rem;color:#8FAE9C}
.breadcrumb a{color:#CFE0D4}

table.spec{width:100%;border-collapse:collapse;margin-top:1.4rem;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:.95rem}
table.spec th,table.spec td{padding:.8rem 1rem;text-align:left;border-bottom:1px solid var(--line)}
table.spec th{font-family:var(--font-display);background:var(--bg);color:var(--ink);font-size:.85rem}
table.spec tr:last-child td{border-bottom:0}
.note{background:var(--sun-soft);border:1.5px solid #C8E3AE;border-radius:10px;padding:1rem 1.2rem;font-size:.92rem;margin-top:1.4rem}

/* Comera main-site additions */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2rem}
@media(max-width:820px){.split{grid-template-columns:1fr}}
.split .path{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1.8rem;display:flex;flex-direction:column;gap:.7rem}
.split .path .tag{font-family:var(--font-display);font-weight:700;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--sun-deep)}
.split .path .btns{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:auto;padding-top:1rem}
.brandstrip{display:flex;gap:.7rem;flex-wrap:wrap;align-items:center;margin-top:1.4rem}
.brandstrip span{font-family:var(--font-display);font-weight:700;font-size:.78rem;letter-spacing:.04em;border:1.5px solid var(--line);border-radius:8px;padding:.4rem .8rem;background:#fff;color:var(--ink-2)}
.casestat{display:grid;grid-template-columns:repeat(4,1fr);gap:.6rem;margin-top:auto;padding-top:.8rem;border-top:1px dashed var(--line)}
@media(max-width:560px){.casestat{grid-template-columns:repeat(2,1fr)}}
.casestat b{display:block;font-family:var(--font-display);font-size:.98rem;color:var(--ink)}
.casestat small{color:var(--muted);font-size:.7rem;line-height:1.3;display:block}
.calc .opts{display:flex;gap:.5rem;margin-bottom:.9rem;flex-wrap:wrap}
.calc .opts label{flex:1;border:1.5px solid var(--line);border-radius:9px;padding:.55rem .4rem;text-align:center;cursor:pointer;font-size:.85rem;margin:0;font-weight:600;color:var(--ink-2);min-width:70px}
.calc .opts input{position:absolute;opacity:0;width:0;margin:0}
.calc .opts input:checked+span{color:var(--sun-deep)}
.calc .opts label:has(input:checked){border-color:var(--sun);background:var(--sun-soft)}
.calc .bigres{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}
.calc .bigres div{background:var(--sun-soft);border:1.5px solid #C8E3AE;border-radius:10px;padding:.7rem}
.calc .bigres b{font-family:var(--font-display);font-size:1.25rem;color:var(--ink);display:block}
.calc .bigres small{font-size:.72rem;color:var(--muted)}
.review-score{display:inline-flex;align-items:center;gap:.6rem;background:#fff;border:1px solid var(--line);border-radius:999px;padding:.5rem 1.1rem;font-family:var(--font-display);font-weight:700;color:var(--ink)}
.review-score .stars{color:#F2A900;letter-spacing:.1em}
.hero .review-score{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25);color:#fff}

/* ============================================================
   Comera additions (not in the sample): a11y skip-link,
   consent cookie banner, and the FAQ teaser popup (marketing).
   ============================================================ */
.skip-link{position:absolute;left:-999px;top:0;z-index:200;background:var(--ink);color:#fff;padding:.7rem 1rem;border-radius:0 0 8px 0;font-family:var(--font-display);font-weight:700}
.skip-link:focus{left:0}

/* Cookie consent banner (analytics dormant until a GA4 ID is set) */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:120;background:var(--card);color:var(--body);border-top:3px solid var(--sun);box-shadow:0 -10px 40px rgba(15,50,41,.30)}
.cookie-banner .wrap{display:flex;align-items:center;gap:1rem 1.4rem;flex-wrap:wrap;justify-content:space-between;padding-top:.9rem;padding-bottom:.9rem}
.cookie-banner p{font-size:.9rem;margin:0;max-width:62ch}
.cookie-banner .btns{display:flex;gap:.6rem;flex-shrink:0}
.cookie-banner .btn{padding:.5rem 1.1rem;font-size:.9rem}
.cookie-banner .btn-ghost{border:2px solid var(--ink);color:var(--ink);background:transparent}
@media(max-width:640px){.cookie-banner .wrap{padding-bottom:4.6rem}}

/* FAQ teaser popup — dismissible, remembered in localStorage */
.faq-teaser{position:fixed;right:18px;bottom:18px;z-index:110;width:min(310px,calc(100vw - 36px));background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.05rem 1.1rem .95rem;animation:faqpop .35s ease}
@keyframes faqpop{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.faq-teaser{animation:none}}
.faq-teaser-kicker{font-family:var(--font-display);font-weight:700;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--sun-deep);margin:0 0 .5rem}
.faq-teaser ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.15rem}
.faq-teaser a{display:block;font-family:var(--font-display);font-weight:600;font-size:.92rem;color:var(--ink);padding:.5rem .55rem;border-radius:8px;line-height:1.3}
.faq-teaser a:hover{background:var(--sun-soft);color:var(--sun-deep)}
.faq-teaser-close{position:absolute;top:.45rem;right:.5rem;width:28px;height:28px;border:none;background:transparent;color:var(--muted);font-size:1.4rem;line-height:1;cursor:pointer;border-radius:6px}
.faq-teaser-close:hover{background:var(--bg);color:var(--ink)}
/* keep it clear of the fixed mobile CTA bar */
@media(max-width:880px){.faq-teaser{bottom:70px}}