/* ===== Insulation Advice Centre shared stylesheet ===== */
:root{
  --navy:#1b2a4a; --navy-dark:#111d36; --navy-mid:#26396b; --navy-light:#eaf0fb;
  --accent:#f5a623; --accent-dark:#3a2a00;
  --ink:#16213a; --grey:#5a6580; --line:#dde3ef;
  --bg:#ffffff; --bg-soft:#f5f8ff; --radius:14px; --max:1120px;
  --shadow:0 6px 24px rgba(17,29,54,.10);
  --font:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);line-height:1.6;background:var(--bg)}
a{color:var(--navy);text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;color:var(--navy-dark)}
h2{font-size:2rem;margin-bottom:.6rem}
h2 + .lede{color:var(--grey);font-size:1.1rem;margin-bottom:2rem;max-width:680px}
section{padding:72px 0}
.btn{display:inline-block;background:var(--accent);color:var(--accent-dark);font-weight:700;
  padding:14px 26px;border-radius:50px;border:none;cursor:pointer;font-size:1rem;
  transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,166,35,.4)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{box-shadow:0 8px 20px rgba(27,42,74,.35)}
.center{text-align:center}
.mt{margin-top:26px}
.soft{background:var(--bg-soft)}

header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--navy-dark)}
.logo .mark{width:34px;height:34px;background:var(--navy);border-radius:9px;display:grid;place-items:center}
.logo .mark svg{width:20px;height:20px}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:var(--navy-dark);font-weight:600;font-size:.95rem}
.nav-links a:hover,.nav-links a.active{color:var(--navy)}
.nav .btn{padding:10px 20px}
.burger{display:none;background:none;border:none;cursor:pointer;font-size:1.5rem;color:var(--navy)}

.hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 100%);color:#fff;padding:64px 0 56px}
.hero h1,.hero h2,.hero h3{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:2.9rem;margin-bottom:18px}
.hero h1 span{color:var(--accent)}
.hero p.sub{font-size:1.18rem;color:#cdd8f2;margin-bottom:26px;max-width:560px}
.hero .ticks{list-style:none;margin:22px 0 0;display:flex;flex-wrap:wrap;gap:14px 26px}
.hero .ticks li{display:flex;align-items:center;gap:8px;font-weight:600;font-size:.95rem;color:#fff}
.hero .ticks li::before{content:"";width:20px;height:20px;border-radius:50%;
  background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23111d36' stroke-width='3'%3E%3Cpath d='M5 12l4 4L19 6'/%3E%3C/svg%3E") center/13px no-repeat;flex:0 0 auto}

.banner{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 100%);color:#fff;padding:54px 0}
.banner h1{color:#fff;font-size:2.4rem;margin-bottom:10px}
.banner p{color:#cdd8f2;font-size:1.1rem;max-width:680px}
.crumbs{font-size:.85rem;color:#9fb0d8;margin-bottom:14px}
.crumbs a{color:#cdd8f2}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px;color:var(--ink)}
.form-card h3{font-size:1.3rem;margin-bottom:4px;color:var(--navy-dark)}
.form-card .small{color:var(--grey);font-size:.9rem;margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font-size:1rem;font-family:inherit;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--navy);border-color:var(--navy)}
.form-card .btn{width:100%;margin-top:6px}
.consent{font-size:.78rem;color:var(--grey);margin-top:12px;line-height:1.4}

.stats{background:var(--navy-mid);color:#fff;padding:30px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stats .num{font-size:2rem;font-weight:800;color:var(--accent)}
.stats .lbl{font-size:.9rem;opacity:.9}

.grid{display:grid;gap:22px}
.cols-4{grid-template-columns:repeat(4,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ico{width:46px;height:46px;background:var(--navy-light);border-radius:11px;
  display:grid;place-items:center;margin-bottom:14px}
.card .ico svg{width:24px;height:24px;stroke:var(--navy)}
.card h3{font-size:1.15rem;margin-bottom:8px}
.card p{color:var(--grey);font-size:.95rem}
.card .meta{margin-top:14px;font-weight:700;color:var(--navy);font-size:.9rem}
.tag{display:inline-block;background:var(--navy-light);color:var(--navy-dark);font-size:.72rem;
  font-weight:700;padding:3px 10px;border-radius:30px;margin-bottom:10px;letter-spacing:.3px}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.step .n{width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;
  font-weight:800;display:grid;place-items:center;margin-bottom:14px;font-size:1.1rem}
.step h3{font-size:1.15rem;margin-bottom:6px}
.step p{color:var(--grey);font-size:.95rem}

.callout{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);
  color:#fff;border-radius:18px;padding:42px;display:grid;grid-template-columns:1.4fr .6fr;
  gap:30px;align-items:center}
.callout h2{color:#fff}
.callout p{opacity:.92;margin-bottom:6px}
.callout .btn{background:var(--accent);color:var(--accent-dark)}
.callout ul{margin:14px 0 0 18px}
.callout ul li{margin-bottom:6px;opacity:.95}

.prose{max-width:760px;margin:0 auto}
.prose p{margin-bottom:18px;color:#34405c}
.prose h2{font-size:1.6rem;margin:32px 0 12px}
.prose h3{font-size:1.25rem;margin:26px 0 10px}
.prose ul{margin:0 0 18px 22px;color:#34405c}
.prose ul li{margin-bottom:8px}
.prose .meta{color:var(--grey);font-size:.9rem;margin-bottom:24px}

.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.stars{color:var(--accent);font-size:1.1rem;letter-spacing:2px;margin-bottom:10px}
.review p{color:#34405c;font-style:italic;margin-bottom:14px}
.review .who{font-weight:700;color:var(--navy-dark)}
.review .where{color:var(--grey);font-size:.88rem}

.post{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}
.post:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.post .thumb{height:150px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-mid) 100%);
  display:grid;place-items:center}
.post .thumb svg{width:48px;height:48px;stroke:#fff;opacity:.8}
.post .body{padding:22px;display:flex;flex-direction:column;flex:1}
.post .date{color:var(--grey);font-size:.82rem;margin-bottom:8px}
.post h3{font-size:1.15rem;margin-bottom:8px}
.post p{color:var(--grey);font-size:.93rem;flex:1}
.post a.more{margin-top:14px;font-weight:700;color:var(--navy)}

.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:18px 22px;margin-bottom:12px;cursor:pointer}
.faq summary{font-weight:700;list-style:none;display:flex;justify-content:space-between;
  align-items:center;color:var(--navy-dark)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--navy);font-weight:400}
.faq details[open] summary::after{content:"\2013"}
.faq details p{margin-top:12px;color:var(--grey)}

/* Trust logo banner */
.trustbar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0}
.trustbar .tt{text-align:center;color:var(--grey);font-weight:600;margin-bottom:18px;
  text-transform:uppercase;letter-spacing:.5px;font-size:.8rem}
.logos{display:flex;flex-wrap:wrap;gap:16px 30px;justify-content:center;align-items:center}
.logobadge{display:flex;align-items:center;gap:11px;color:var(--navy-dark);font-weight:700;font-size:.9rem;line-height:1.2}
.logobadge .seal{width:42px;height:42px;border-radius:50%;border:2px solid var(--navy);
  display:grid;place-items:center;flex:0 0 auto}
.logobadge .seal svg{width:20px;height:20px;stroke:var(--navy);fill:none}
.logobadge small{display:block;font-weight:500;color:var(--grey);font-size:.72rem}

/* Rating line */
.ratingline{display:flex;gap:14px;align-items:center;justify-content:center;flex-wrap:wrap;margin-bottom:6px}
.ratingline .stars{color:var(--accent);font-size:1.4rem;letter-spacing:2px}
.ratingline .score{font-weight:800;color:var(--navy-dark);font-size:1.1rem}
.ratingline .src{color:var(--grey);font-size:.9rem}

/* Value props + mechanism band */
.vp .vpnum{width:34px;height:34px;border-radius:9px;background:var(--navy);color:#fff;
  font-weight:800;display:grid;place-items:center;margin-bottom:12px;font-size:.95rem}
.vp h3{font-size:1.02rem;line-height:1.35}
.mech{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);color:#fff;
  border-radius:18px;padding:42px;text-align:center;max-width:920px;margin:0 auto}
.mech p{font-size:1.15rem;opacity:.95;max-width:760px;margin:0 auto 22px}
.mech .btn{background:var(--accent);color:var(--accent-dark)}

/* Pain / PAS section */
.painbox{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px;max-width:840px;margin:0 auto}
.painbox .greet{font-weight:800;color:var(--navy-dark);font-size:1.15rem;margin-bottom:16px}
.checks{list-style:none;margin:0}
.checks li{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px;font-weight:600;color:var(--ink)}
.checks li::before{content:"\2713";color:#fff;background:var(--navy);width:24px;height:24px;
  border-radius:7px;display:grid;place-items:center;font-size:.85rem;font-weight:800;flex:0 0 auto}
.pas{max-width:840px;margin:0 auto}
.pas p{color:#34405c;margin:0 auto 16px;font-size:1.05rem}
.pas p.tight{margin-bottom:6px}
.pas .neg{list-style:none;margin:6px 0 18px}
.pas .neg li{display:flex;gap:10px;align-items:flex-start;margin-bottom:8px;color:#34405c}
.pas .neg li::before{content:"\2715";color:#c0392b;font-weight:800;flex:0 0 auto}
.pas .yes{list-style:none;margin:6px 0 18px}
.pas .yes li{display:flex;gap:10px;align-items:flex-start;margin-bottom:8px;color:#34405c;font-weight:600}
.pas .yes li::before{content:"\2713";color:var(--navy);font-weight:800;flex:0 0 auto}

footer{background:var(--navy-dark);color:#aebbd6;padding:54px 0 26px;font-size:.9rem}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px;margin-bottom:30px}
footer h4{color:#fff;margin-bottom:12px;font-size:1rem}
footer a{color:#aebbd6;display:block;margin-bottom:7px}
footer a:hover{color:#fff}
.foot-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;margin-bottom:12px}
.foot-logo .mark{width:30px;height:30px;background:var(--navy);border-radius:8px;display:grid;place-items:center}
.foot-logo .mark svg{width:18px;height:18px}
.disclaimer{border-top:1px solid #2a3a5e;padding-top:20px;color:#7e8db0;font-size:.8rem;line-height:1.6}

@media(max-width:980px){.cols-4{grid-template-columns:1fr 1fr}}
@media(max-width:900px){
  .hero-grid,.callout{grid-template-columns:1fr}
  .cols-3,.steps,.stats-grid{grid-template-columns:1fr 1fr}
  .cols-2,.foot-grid{grid-template-columns:1fr}
  .hero h1{font-size:2.2rem}.banner h1{font-size:1.9rem}
  h2{font-size:1.7rem}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:68px;left:0;right:0;background:#fff;
    flex-direction:column;padding:18px 20px;border-bottom:1px solid var(--line);gap:14px}
  .burger{display:block}
}
@media(max-width:560px){
  .cols-4,.cols-3,.steps,.stats-grid{grid-template-columns:1fr}
  section{padding:52px 0}
}

/* Accreditation wordmark logos */
.logo-wm{display:inline-flex;align-items:center;gap:5px;height:50px;padding:0 18px;background:#fff;
  border:1px solid var(--line);border-radius:10px;font-weight:800;font-size:1.05rem;
  box-shadow:0 2px 8px rgba(17,29,54,.05);letter-spacing:.2px;white-space:nowrap}
.logo-wm b{font-weight:800}
.logo-wm i{font-style:normal;font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.wm-rics{color:#5b2a86;letter-spacing:1px;font-size:1.2rem}
.wm-trustmark{color:#0a2540}.wm-trustmark b{color:#16b0b0}
.wm-check{color:#e1251b}.wm-check b{color:#1a4ea3}
.wm-which{color:#111}.wm-which i{color:#e10a1a}
.wm-tat{color:#f6871f}.wm-tat b{color:#1a4ea3}
.wm-trustpilot{color:#00b67a}
.wm-gassafe{background:#ffd400;color:#111;border-color:#ecc200}
.wm-hics{background:#7a2e8e;color:#fff;border-color:#7a2e8e;border-radius:30px}
.tt-note{text-align:center;color:var(--grey);font-size:.72rem;margin:16px auto 0;max-width:760px;line-height:1.4}

/* Rolling marquee banner */
.marquee{overflow:hidden;width:100%;padding:6px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:18px;width:max-content;animation:iac-scroll 34s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee .logo-wm{flex:0 0 auto}
@keyframes iac-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.marquee-track{animation:none;flex-wrap:wrap;justify-content:center}}
.wm-chas{color:#5b2a86}.wm-chas i{color:#5b2a86;opacity:.8}
.wm-superfoil{color:#10243b}.wm-superfoil i{color:#5a6580}