/* ============================================================
   Complete PAT Testing: Design System
   Signature: the physical PAT test pass tag (punch hole, serial,
   test date, retest date, PASS stamp) reused as a UI component.
   ============================================================ */

:root{
  --ink:#121821;
  --ink-soft:#1c2530;
  --paper:#E9EDE8;
  --paper-2:#DEE4DD;
  --line:#c7cfc7;
  --line-dark:#3a4551;
  --text:#161c22;
  --text-soft:#4b5560;
  --white:#F7F8F5;

  --pass:#1E7F4B;
  --pass-deep:#155c37;
  --tag-amber:#E8A33D;
  --tag-blue:#2E5FA3;
  --tag-red:#C0432F;

  --radius-tag:10px;
  --radius-card:14px;

  --font-display:-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --font-body:system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,'SF Mono','Cascadia Code','Roboto Mono',Consolas,'Courier New',monospace;

  --maxw:1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.08;margin:0 0 .5em;letter-spacing:-0.01em;}
h1{font-size:clamp(2.4rem,5vw,4rem);font-weight:800;}
h2{font-size:clamp(1.7rem,3vw,2.5rem);font-weight:800;}
h3{font-size:1.3rem;font-weight:700;}
p{margin:0 0 1em;color:var(--text-soft);}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--pass-deep);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:'';
  width:8px;height:8px;border-radius:50%;
  background:var(--pass);
  box-shadow:0 0 0 3px rgba(30,127,75,.18);
}
@media (prefers-reduced-motion:no-preference){
  .tag-hero{animation:swing 6s ease-in-out infinite;transform-origin:top center;}
}
@keyframes swing{
  0%,100%{transform:rotate(-2.2deg);}
  50%{transform:rotate(2.2deg);}
}

/* ---------- header ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(233,237,232,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;max-width:var(--maxw);margin:0 auto;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-weight:800;font-size:1.05rem;
  color:var(--ink);
}
.logo-img{height:42px;width:auto;display:block;}
@media(max-width:500px){.logo-img{height:34px;}}
.logo .tag-mark{
  width:26px;height:26px;background:var(--pass);border-radius:5px;
  position:relative;flex:none;
}
.logo .tag-mark::after{
  content:'';position:absolute;left:5px;top:5px;width:5px;height:5px;border-radius:50%;
  background:var(--paper);
}
.logo small{display:block;font-family:var(--font-mono);font-weight:400;font-size:.62rem;letter-spacing:.08em;color:var(--text-soft);text-transform:uppercase;}
nav.links{display:flex;align-items:center;gap:26px;font-size:.92rem;font-weight:500;}
nav.links a{color:var(--text);position:relative;padding:4px 0;}
nav.links a:hover{color:var(--pass-deep);}
.has-drop{position:relative;}
.has-drop > a{display:inline-flex;align-items:center;gap:5px;}
.has-drop .chevron{width:14px;height:14px;flex:none;color:currentColor;}
.dropdown{
  position:absolute;top:100%;left:0;background:var(--white);
  border:1px solid var(--line);border-radius:10px;padding:8px;
  min-width:190px;box-shadow:0 12px 30px rgba(18,24,33,.12);
  display:none;flex-direction:column;gap:2px;
}
.has-drop:hover .dropdown, .has-drop:focus-within .dropdown{display:flex;}
.dropdown a{padding:8px 10px;border-radius:6px;font-size:.87rem;}
.dropdown a:hover{background:var(--paper);}
.btn{
  font-family:var(--font-body);font-weight:700;font-size:.87rem;
  padding:11px 20px;border-radius:8px;border:none;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-primary{background:var(--ink);color:var(--white);}
.btn-primary:hover{background:var(--pass-deep);}
.btn-ghost{background:transparent;border:1.5px solid var(--line-dark);color:var(--ink);}
.nav-cta{display:flex;align-items:center;gap:14px;}
.nav-phone{display:none;font-family:var(--font-mono);font-size:.82rem;}
@media(min-width:900px){.nav-phone{display:block;}}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;}
@media(max-width:900px){
  nav.links{display:none;}
  .menu-toggle{display:block;}
  .has-drop:hover .dropdown, .has-drop:focus-within .dropdown{display:none;}
  nav.links.nav-open{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    position:absolute;
    top:64px;left:0;right:0;
    background:var(--white);
    padding:10px 24px 18px;
    border-bottom:1px solid var(--line);
    gap:0;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  nav.links.nav-open > a{
    width:100%;
    padding:14px 4px;
    border-bottom:1px solid var(--line);
    text-align:left;
  }
  .has-drop{width:100%;border-bottom:1px solid var(--line);}
  nav.links.nav-open .has-drop > a{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;padding:14px 4px;border-bottom:none;
  }
  .has-drop .chevron{
    flex:none;width:18px;height:18px;
    transition:transform .18s ease;
    color:var(--text-soft);
  }
  .has-drop.open .chevron{transform:rotate(180deg);}
  .dropdown{
    position:static;
    width:100%;
    box-sizing:border-box;
    box-shadow:none;
    border:none;
    padding:0 0 10px 14px;
    background:transparent;
    display:none;
    flex-direction:column;
    gap:2px;
  }
  .has-drop.open .dropdown{display:flex;}
  .dropdown a{padding:10px;width:100%;box-sizing:border-box;}
}

/* ---------- PAT TAG component (signature element) ---------- */
.pat-tag{
  background:var(--white);
  border:1.5px solid var(--line-dark);
  border-radius:var(--radius-tag);
  padding:20px 22px 18px;
  position:relative;
  width:100%;
  font-family:var(--font-mono);
  box-shadow:0 18px 40px rgba(18,24,33,.16);
}
.pat-tag::before{
  content:'';
  position:absolute;left:22px;top:-13px;
  width:22px;height:22px;border-radius:50%;
  background:var(--paper);
  border:3px solid var(--ink);
}
.pat-tag .string{
  position:absolute;left:32px;top:-42px;width:2px;height:32px;
  background:var(--line-dark);
}
.pat-tag .stamp{
  position:absolute;right:16px;top:16px;
  border:3px solid var(--pass);color:var(--pass-deep);
  font-family:var(--font-display);font-weight:800;font-size:.78rem;
  letter-spacing:.08em;padding:4px 9px;border-radius:6px;
  transform:rotate(6deg);
}
.pat-tag .brand-line{
  font-family:var(--font-display);font-weight:800;font-size:.95rem;
  color:var(--ink);letter-spacing:.02em;margin-bottom:14px;
}
.pat-tag .row{display:flex;justify-content:space-between;font-size:.78rem;margin-bottom:6px;color:var(--text-soft);}
.pat-tag .row b{color:var(--text);font-weight:600;}
.pat-tag hr{border:none;border-top:1px dashed var(--line);margin:12px 0;}
.pat-tag .serial{font-size:.72rem;color:var(--text-soft);letter-spacing:.04em;}

.tag-hero{max-width:340px;margin-left:auto;}

/* small badge version, used across sector/location pages */
.tag-badge{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--white);border:1.5px solid var(--line-dark);
  border-radius:8px;padding:9px 14px 9px 12px;
  font-family:var(--font-mono);font-size:.78rem;
  box-shadow:0 6px 16px rgba(18,24,33,.08);
}
.tag-badge .dot{width:9px;height:9px;border-radius:50%;background:var(--pass);flex:none;}
.tag-badge b{font-family:var(--font-display);font-size:.8rem;letter-spacing:.02em;}

/* ---------- hero ---------- */
.hero{padding:64px 0 70px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;}.tag-hero{margin:40px auto 0;max-width:300px;}}
.hero p.lead{font-size:1.12rem;max-width:46ch;}
.hero-ctas{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.trust-row{display:flex;gap:28px;margin-top:38px;flex-wrap:wrap;}
.trust-item{font-family:var(--font-mono);font-size:.76rem;color:var(--text-soft);display:flex;align-items:center;gap:8px;}
.trust-item .dot{width:6px;height:6px;border-radius:50%;background:var(--ink);}

/* ---------- perforated divider ---------- */
.perf{
  height:1px;position:relative;
  background:repeating-linear-gradient(to right, var(--line-dark) 0 6px, transparent 6px 14px);
  margin:0;
}

/* ---------- sections ---------- */
section{padding:74px 0;}
.section-dark{background:var(--ink);color:var(--white);}
.section-dark h2, .section-dark h1{color:var(--white);}
.section-dark p{color:#aab2ba;}
.section-alt{background:var(--paper-2);}
.section-head{max-width:640px;margin-bottom:44px;}

/* card grids */
.grid{display:grid;gap:22px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;
}
.card .num{font-family:var(--font-mono);font-size:.72rem;color:var(--pass-deep);letter-spacing:.08em;margin-bottom:10px;display:block;}
.card h3{margin-bottom:8px;}
.card h2.card-title-sm{font-size:1.3rem;font-weight:700;margin-bottom:8px;}
.card p{margin-bottom:0;font-size:.92rem;}

.step{display:flex;gap:18px;padding:22px 0;border-top:1px solid var(--line);}
.step:last-child{}
.step .idx{font-family:var(--font-mono);font-size:.85rem;color:var(--pass-deep);flex:none;width:52px;}
.step h3.step-title{margin:0 0 6px;font-size:1.05rem;font-family:var(--font-display);font-weight:700;}
.step p{margin:0;font-size:.92rem;}

/* frequency table */
table.freq{width:100%;border-collapse:collapse;font-size:.9rem;background:var(--white);border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);}
table.freq th,table.freq td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);}
table.freq th{font-family:var(--font-mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;background:var(--paper-2);color:var(--text-soft);}
table.freq tr:last-child td{border-bottom:none;}

/* colour code strip */
.code-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;}
.code-chip{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.78rem;background:var(--white);border:1px solid var(--line);padding:7px 12px;border-radius:20px;}
.code-chip i{width:10px;height:10px;border-radius:50%;display:block;}

/* location / sector coverage list */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{
  font-family:var(--font-mono);font-size:.8rem;background:var(--white);
  border:1px solid var(--line-dark);padding:9px 14px;border-radius:8px;
}
.chip:hover{border-color:var(--pass);color:var(--pass-deep);}

/* CTA banner */
.cta-banner{
  background:var(--ink);color:var(--white);border-radius:20px;
  padding:52px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;
}
.cta-banner h2{color:var(--white);margin-bottom:6px;}
.cta-banner p{color:#aab2ba;margin:0;}

/* ---------- enquiry form ---------- */
.form-panel{
  background:var(--white);border:1px solid var(--line);border-radius:20px;
  padding:34px;
}
.form-panel .pat-tag{position:absolute;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
@media(max-width:600px){.form-row{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:.8rem;font-weight:600;color:var(--text);}
.field input,.field select,.field textarea{
  font-family:var(--font-body);font-size:.95rem;
  padding:12px 13px;border:1.5px solid var(--line);border-radius:8px;
  background:var(--paper);color:var(--text);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--pass);outline-offset:1px;border-color:var(--pass);
}
.field.full{grid-column:1/-1;}
.form-note{font-size:.78rem;color:var(--text-soft);margin-top:14px;}
.form-status{margin-top:14px;font-size:.88rem;font-weight:600;display:none;}
.form-status.ok{color:var(--pass-deep);display:block;}
.form-status.err{color:var(--tag-red);display:block;}

/* two column layout with sticky tag */
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start;}
@media(max-width:900px){.split{grid-template-columns:1fr;}}

/* faq */
.faq-item{border-top:1px solid var(--line);padding:20px 0;}
.faq-item summary{cursor:pointer;font-family:var(--font-display);font-weight:700;font-size:1rem;list-style:none;display:flex;justify-content:space-between;align-items:center;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';font-size:1.4rem;color:var(--pass-deep);font-weight:400;}
.faq-item[open] summary::after{content:'–';}
.faq-item p{margin-top:12px;}

/* footer */
footer{background:var(--ink-soft);color:#c3c9cf;padding:60px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px;}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
footer h3.footer-label{color:var(--white);font-family:var(--font-mono);font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:16px;font-weight:600;}
footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px;}
footer a{font-size:.87rem;color:#c3c9cf;}
footer a:hover{color:var(--white);}
.footer-legal{
  border-top:1px solid #303a44;padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:.76rem;color:#9199a3;
}
.footer-brand{max-width:280px;}
.footer-brand .logo{color:var(--white);margin-bottom:14px;}
.footer-brand p.small{color:#aab2ba;}

/* utility */
.mt-0{margin-top:0;}
.center{text-align:center;margin-left:auto;margin-right:auto;}
.small{font-size:.85rem;color:var(--text-soft);}
.pill{display:inline-block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;background:var(--paper-2);padding:5px 10px;border-radius:20px;margin-bottom:14px;}

.breadcrumb{font-family:var(--font-mono);font-size:.76rem;color:var(--text-soft);margin-bottom:18px;}
.breadcrumb a:hover{color:var(--pass-deep);}

.page-hero{padding:50px 0 40px;}
.page-hero h1{max-width:16ch;}

/* ============ dedicated ad landing page ============ */
.lp-header{
  padding:16px 0;border-bottom:1px solid var(--line);
  background:var(--paper);
}
.lp-header .wrap{display:flex;align-items:center;justify-content:space-between;}
.lp-phone{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-display);font-weight:800;font-size:1.05rem;color:var(--ink);
}
.lp-phone svg{flex:none;color:var(--pass);}
.lp-phone small{display:block;font-family:var(--font-body);font-weight:500;font-size:.68rem;color:var(--text-soft);text-transform:none;letter-spacing:0;}

.lp-hero{padding:44px 0 50px;}
.lp-hero .hero-grid{align-items:center;}
.lp-hero h1{max-width:15ch;}
.lp-trust-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.lp-trust-badge{
  display:flex;align-items:center;gap:8px;
  background:var(--white);border:1px solid var(--line);border-radius:20px;
  padding:8px 14px;font-size:.82rem;font-weight:600;
}
.lp-trust-badge svg{flex:none;color:var(--pass);}

.lp-form-wrap{position:sticky;top:90px;}

.lp-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media(max-width:900px){.lp-steps{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.lp-steps{grid-template-columns:1fr;}}
.lp-step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;}
.lp-step .lp-step-icon{
  width:42px;height:42px;border-radius:10px;background:var(--paper-2);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--pass-deep);
}

.lp-mini-faq{border-top:1px solid var(--line);padding:18px 0;}
.lp-mini-faq h3{font-family:var(--font-display);font-weight:700;font-size:1rem;margin:0 0 6px;}
.lp-mini-faq p{margin:0;font-size:.92rem;}

.lp-sticky-bar{
  display:none;
  position:fixed;bottom:0;left:0;right:0;z-index:60;
  background:var(--ink);padding:12px 16px;
  gap:10px;
  box-shadow:0 -8px 24px rgba(0,0,0,.18);
}
@media(max-width:900px){
  .lp-sticky-bar{display:flex;}
  body:has(.lp-sticky-bar){padding-bottom:96px;}
}
.lp-sticky-bar a{
  flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:12px;border-radius:9px;font-weight:700;font-size:.9rem;
}
.lp-sticky-bar .lp-call-btn{background:var(--white);color:var(--ink);}
.lp-sticky-bar .lp-quote-btn{background:var(--pass);color:var(--white);}

.lp-footer{padding:30px 0;background:var(--ink-soft);color:#9199a3;font-size:.78rem;text-align:center;}
.lp-footer p{color:#aab2ba;}
.lp-footer a{color:#c3c9cf;}
.lp-footer a:hover{color:var(--white);}