/* ============================================================
   Refrigeration Coventry — Chill Rooms
   Design system: "Deep Freeze" — arctic navy, coolant cyan,
   frost white, alert amber. Industrial signage typography.
   ============================================================ */

:root{
  --navy:#0B2440;
  --navy-2:#102F52;
  --navy-3:#163A63;
  --cyan:#1CA9DD;
  --cyan-deep:#0E84B5;
  --ice:#EAF6FC;
  --frost:#F6FBFE;
  --white:#FFFFFF;
  --steel:#54677A;
  --line:#D5E6F0;
  --amber:#FFB020;
  --amber-deep:#E69500;
  --red:#E2483D;
  --radius:10px;
  --shadow:0 10px 30px rgba(11,36,64,.10);
  --max:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

body{
  font-family:'Barlow',system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.65;color:var(--navy);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,.display{
  font-family:'Barlow Condensed','Barlow',sans-serif;
  font-weight:700;line-height:1.08;letter-spacing:.2px;
  text-wrap:balance;
}
h1{font-size:clamp(2.4rem,5.4vw,4.2rem);text-transform:uppercase}
h2{font-size:clamp(1.9rem,3.6vw,2.8rem);text-transform:uppercase}
h3{font-size:1.35rem;font-weight:600}
p{margin-bottom:1rem}
a{color:var(--cyan-deep)}
img{max-width:100%;display:block}
strong{font-weight:600}

.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}

/* —— Signature: temperature strip —— */
.temp-strip{
  height:6px;width:100%;
  background:linear-gradient(90deg,var(--navy) 0%,var(--cyan) 55%,var(--amber) 100%);
}

/* —— Gauge eyebrow —— */
.gauge{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:'Barlow Condensed',sans-serif;font-weight:600;
  font-size:.95rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan-deep);margin-bottom:.9rem;
}
.gauge::before{
  content:"";width:34px;height:2px;background:var(--cyan);
}
.gauge .temp{color:var(--steel);font-weight:500;letter-spacing:.08em}

/* —— Top emergency bar —— */
.alertbar{
  background:var(--navy);color:var(--ice);
  font-size:.92rem;padding:.45rem 0;
}
.alertbar .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.alertbar a{color:var(--amber);font-weight:600;text-decoration:none}
.alertbar .dot{color:var(--amber)}

/* —— Header —— */
header.site{
  position:sticky;top:0;z-index:50;
  background:var(--white);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--navy)}
.brand .mark{
  width:46px;height:46px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(160deg,var(--cyan) 0%,var(--navy) 90%);
  display:grid;place-items:center;color:#fff;overflow:hidden;
  font-family:'Barlow Condensed';font-weight:700;font-size:1.05rem;letter-spacing:.04em;
}
.brand .mark img{width:84%;height:84%;object-fit:contain;display:block}
.brand .name{font-family:'Barlow Condensed';font-weight:700;font-size:1.45rem;line-height:1;text-transform:uppercase}
.brand .tag{display:block;font-family:'Barlow';font-weight:500;font-size:.72rem;letter-spacing:.14em;color:var(--steel);text-transform:uppercase}
nav.menu{display:flex;gap:1.4rem;align-items:center}
nav.menu a{color:var(--navy);text-decoration:none;font-weight:500;font-size:.98rem}
nav.menu a:hover{color:var(--cyan-deep)}
.call-btn{
  display:inline-flex;align-items:center;gap:.5rem;
  background:var(--amber);color:var(--navy)!important;
  padding:.62rem 1.15rem;border-radius:8px;font-weight:700!important;
  text-decoration:none;white-space:nowrap;
  box-shadow:0 4px 14px rgba(255,176,32,.35);
  transition:transform .15s ease, background .15s ease;
}
.call-btn:hover{background:var(--amber-deep);transform:translateY(-1px)}
.menu-toggle{display:none;background:none;border:0;font-size:1.7rem;color:var(--navy);cursor:pointer}

/* —— Hero —— */
.hero{
  background:
    radial-gradient(1100px 500px at 85% -10%,rgba(28,169,221,.28),transparent 60%),
    linear-gradient(165deg,var(--navy) 0%,var(--navy-2) 60%,var(--navy-3) 100%);
  color:#fff;position:relative;overflow:hidden;
}
.hero::after{ /* frost grain */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(0deg,rgba(234,246,252,.06) 1px,transparent 1px);
  background-size:100% 84px;
}
.hero .wrap{position:relative;z-index:1;padding-top:4.2rem;padding-bottom:4.4rem}
.hero .gauge{color:var(--cyan)}
.hero .gauge .temp{color:rgba(234,246,252,.7)}
.hero h1 .hl{color:var(--cyan)}
.hero p.lede{font-size:1.18rem;max-width:640px;color:rgba(234,246,252,.92);margin:1.1rem 0 1.6rem}
.hero-ctas{display:flex;gap:.9rem;flex-wrap:wrap;align-items:center}
.cta-phone{
  display:inline-flex;flex-direction:column;text-decoration:none;
  background:var(--amber);color:var(--navy);border-radius:12px;
  padding:.8rem 1.5rem;box-shadow:0 6px 22px rgba(255,176,32,.4);
  transition:transform .15s ease;
}
.cta-phone:hover{transform:translateY(-2px)}
.cta-phone .small{font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase}
.cta-phone .num{font-family:'Barlow Condensed';font-weight:700;font-size:1.9rem;line-height:1.05}
.cta-ghost{
  display:inline-flex;align-items:center;text-decoration:none;color:#fff;
  border:1.5px solid rgba(234,246,252,.45);border-radius:12px;
  padding:1.05rem 1.4rem;font-weight:600;transition:border-color .15s, background .15s;
}
.cta-ghost:hover{border-color:var(--cyan);background:rgba(28,169,221,.12)}
.trust-chips{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1.8rem}
.chip{
  display:inline-flex;align-items:center;gap:.45rem;
  background:rgba(234,246,252,.08);border:1px solid rgba(234,246,252,.18);
  border-radius:999px;padding:.4rem .95rem;font-size:.88rem;color:var(--ice);
}
.chip b{color:var(--cyan)}

/* —— Sections —— */
section{padding:4.2rem 0}
section.tint{background:var(--frost)}
section.dark{background:var(--navy);color:var(--ice)}
section.dark h2{color:#fff}
.section-head{max-width:760px;margin-bottom:2.4rem}
.section-head p{color:var(--steel);font-size:1.05rem}
section.dark .section-head p{color:rgba(234,246,252,.8)}

/* —— Cards —— */
.grid{display:grid;gap:1.4rem}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem;box-shadow:0 2px 8px rgba(11,36,64,.04);
  display:flex;flex-direction:column;
  transition:transform .15s ease, box-shadow .15s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .temp-tag{
  font-family:'Barlow Condensed';font-weight:600;font-size:.92rem;
  letter-spacing:.14em;color:var(--cyan-deep);text-transform:uppercase;margin-bottom:.5rem;
}
.card h3{margin-bottom:.55rem}
.card p{color:var(--steel);font-size:.99rem;flex:1}
.card a.more{font-weight:600;text-decoration:none;color:var(--cyan-deep)}
.card a.more:hover{text-decoration:underline}

/* —— Why us / checklist —— */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:start}
ul.checks{list-style:none;display:grid;gap:.85rem;margin:1.2rem 0}
ul.checks li{
  padding-left:2rem;position:relative;color:var(--navy);
}
ul.checks li::before{
  content:"✓";position:absolute;left:0;top:0;
  width:1.35rem;height:1.35rem;border-radius:6px;
  background:var(--ice);color:var(--cyan-deep);font-weight:700;
  display:grid;place-items:center;font-size:.85rem;
}
section.dark ul.checks li{color:var(--ice)}
section.dark ul.checks li::before{background:rgba(28,169,221,.18);color:var(--cyan)}

/* —— Stats / gauges —— */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin-top:2.4rem}
.stat{
  border-left:3px solid var(--cyan);padding:.3rem 0 .3rem 1.1rem;
}
.stat .n{font-family:'Barlow Condensed';font-weight:700;font-size:2.4rem;line-height:1;color:#fff}
.stat .l{font-size:.88rem;color:rgba(234,246,252,.75);letter-spacing:.06em;text-transform:uppercase}

/* —— Steps —— */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;counter-reset:step}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}
.step .k{
  font-family:'Barlow Condensed';font-weight:700;font-size:1rem;color:var(--cyan-deep);
  letter-spacing:.16em;text-transform:uppercase;margin-bottom:.45rem;display:block;
}
.step p{color:var(--steel);font-size:.97rem;margin:0}

/* —— FAQ —— */
.faq{max-width:840px}
.faq details{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--white);margin-bottom:.8rem;overflow:hidden;
}
.faq summary{
  cursor:pointer;padding:1.05rem 1.3rem;font-weight:600;font-size:1.04rem;
  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-family:'Barlow Condensed';font-size:1.5rem;color:var(--cyan-deep);font-weight:600}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 1.3rem 1.15rem;color:var(--steel)}

/* —— Areas —— */
.areas{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.2rem}
.areas a,.areas span{
  background:var(--white);border:1px solid var(--line);border-radius:999px;
  padding:.42rem 1rem;font-size:.92rem;color:var(--navy);text-decoration:none;
}
.areas a:hover{border-color:var(--cyan);color:var(--cyan-deep)}

/* —— CTA band —— */
.cta-band{
  background:linear-gradient(120deg,var(--navy) 0%,var(--navy-3) 100%);
  color:#fff;border-radius:16px;padding:2.6rem;display:grid;
  grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(28,169,221,.35),transparent 70%);
}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.4rem)}
.cta-band p{color:rgba(234,246,252,.85);margin:.6rem 0 0}
.cta-band .right{display:flex;flex-direction:column;gap:.8rem;align-items:flex-start;position:relative}

/* —— Content pages —— */
.page-hero{padding:3.4rem 0 3rem}
.page-hero h1{font-size:clamp(2.1rem,4.4vw,3.4rem)}
.prose{max-width:800px}
.prose h2{font-size:1.7rem;margin:2.2rem 0 .8rem}
.prose h3{margin:1.6rem 0 .5rem}
.prose ul{margin:0 0 1rem 1.3rem}
.prose li{margin-bottom:.4rem}
.breadcrumbs{font-size:.88rem;color:var(--steel);margin-bottom:1rem}
.breadcrumbs a{color:var(--steel);text-decoration:none}
.breadcrumbs a:hover{color:var(--cyan-deep)}

/* —— Contact form —— */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.6rem;align-items:start}
form.enquiry{display:grid;gap:1rem;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem;box-shadow:var(--shadow)}
form.enquiry label{font-weight:600;font-size:.92rem;display:block;margin-bottom:.3rem}
form.enquiry input,form.enquiry select,form.enquiry textarea{
  width:100%;padding:.75rem .9rem;border:1.5px solid var(--line);border-radius:8px;
  font:inherit;color:var(--navy);background:var(--frost);
}
form.enquiry input:focus,form.enquiry select:focus,form.enquiry textarea:focus{
  outline:2px solid var(--cyan);outline-offset:1px;border-color:var(--cyan);
}
form.enquiry button{
  background:var(--navy);color:#fff;border:0;border-radius:8px;
  padding:.95rem 1.4rem;font:inherit;font-weight:700;cursor:pointer;
  transition:background .15s;
}
form.enquiry button:hover{background:var(--navy-3)}
.contact-card{background:var(--frost);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;margin-bottom:1.2rem}
.contact-card .big{font-family:'Barlow Condensed';font-weight:700;font-size:2rem;line-height:1.1}
.contact-card a{text-decoration:none}

/* —— Footer —— */
footer.site{background:var(--navy);color:rgba(234,246,252,.82);padding:3.4rem 0 6.5rem;font-size:.95rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.2rem}
footer.site h4{font-family:'Barlow Condensed';text-transform:uppercase;color:#fff;font-size:1.1rem;letter-spacing:.1em;margin-bottom:.8rem}
footer.site a{color:rgba(234,246,252,.82);text-decoration:none;display:block;padding:.18rem 0}
footer.site a:hover{color:var(--cyan)}
footer.site .legal{border-top:1px solid rgba(234,246,252,.15);margin-top:2.4rem;padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.85rem;color:rgba(234,246,252,.55)}
footer .foot-phone{font-family:'Barlow Condensed';font-weight:700;font-size:1.7rem;color:var(--amber)!important}

/* —— Sticky mobile call bar —— */
.callbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;
  background:var(--navy);border-top:2px solid var(--amber);
  padding:.6rem .9rem calc(.6rem + env(safe-area-inset-bottom));
  gap:.7rem;
}
.callbar a{
  flex:1;text-align:center;text-decoration:none;border-radius:9px;padding:.75rem .6rem;
  font-weight:700;font-size:1rem;
}
.callbar .call{background:var(--amber);color:var(--navy)}
.callbar .quote{border:1.5px solid rgba(234,246,252,.4);color:#fff}

/* —— Focus visibility —— */
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:3px solid var(--amber);outline-offset:2px;border-radius:4px;
}

/* —— Responsive —— */
@media (max-width:980px){
  .grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid,.cta-band{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  footer.site .cols{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
}
@media (max-width:760px){
  nav.menu{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--white);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;padding:1rem 22px;gap:.9rem;
  }
  nav.menu.open{display:flex}
  .menu-toggle{display:block}
  .nav .call-btn{display:none}
  .callbar{display:flex}
  .grid.c3,.grid.c2,.grid.c4{grid-template-columns:1fr}
  section{padding:3rem 0}
  footer.site .cols{grid-template-columns:1fr}
  .alertbar .wrap{justify-content:center;text-align:center}
}