/* PERMEON — layout. Structure follows the reference laboratory site:
   utility bar, white header, photographic hero, colour-block service grid,
   standards strip, prose block, list+photo, three steps, dark insight band,
   full-width photo band, FAQ, enquiry form, dark multi-column footer. */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Segoe UI",Roboto,"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:16px;line-height:1.65;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-mid)}
h1,h2,h3{color:var(--ink);font-weight:500;line-height:1.2;margin:0 0 14px}
h1{font-size:44px}h2{font-size:30px}h3{font-size:19px}
p{margin:0 0 16px}
main{display:block}
section{padding:0}

/* ---- utility bar ---- */
.utility{font-size:13px}
.utility-inner{max-width:1240px;margin:0 auto;padding:8px 24px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.utility-item{color:#c9d8e8;text-decoration:none}
.utility-item:hover{color:#fff;text-decoration:underline}
.utility-sep{flex:1 1 auto}

/* ---- header ---- */
.site-header{border-bottom:1px solid var(--rule);position:relative;z-index:5}
.header-inner{max-width:1240px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.header-logo{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.logo-mark{width:40px;height:40px;border-radius:3px;background:var(--blue);color:#fff;display:grid;place-items:center;
  font-size:23px;font-weight:700;letter-spacing:.02em;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{color:var(--ink);font-size:21px;letter-spacing:.14em;font-weight:600}
.logo-text em{color:var(--steel-light);font-size:11.5px;font-style:normal;letter-spacing:.05em;text-transform:uppercase}
.header-nav{display:flex;flex-wrap:wrap;gap:22px;margin-left:auto}
.nav-link{color:var(--ink);text-decoration:none;font-size:14.5px;letter-spacing:.02em;padding:6px 0;border-bottom:2px solid transparent}
.nav-link:hover{color:var(--blue);border-bottom-color:var(--blue)}
.nav-link.is-active{color:var(--blue);border-bottom-color:var(--blue)}
.header-cta{flex:0 0 auto}

/* ---- buttons ---- */
.btn{display:inline-block;padding:12px 26px;border-radius:2px;font-size:14px;letter-spacing:.04em;
  text-transform:uppercase;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn-primary:hover{background:var(--blue-deep);border-color:var(--blue-deep)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-light{background:#fff;color:var(--blue);border-color:#fff}
.btn-light:hover{background:var(--blue-pale)}
.link-arrow{display:inline-block;color:var(--blue-mid);text-decoration:none;font-size:15px;border-bottom:1px solid currentColor;padding-bottom:1px}
.link-arrow::after{content:" \2192"}
.link-arrow:hover{color:var(--blue-deep)}

/* ---- hero ---- */
.hero{background-size:cover;background-position:center;color:#fff}
.hero-inner{max-width:1240px;margin:0 auto;padding:96px 24px 104px}
.hero-eyebrow{font-size:13px;letter-spacing:.13em;text-transform:uppercase;color:#9dc0e2;margin:0 0 18px}
.hero h1{color:#fff;font-size:58px;font-weight:500;line-height:1.14;max-width:15ch;margin:0 0 22px}
.hero-lead{font-size:19px;line-height:1.6;color:#dce8f4;max-width:56ch;margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---- strip ---- */
.strip-inner{max-width:1240px;margin:0 auto;padding:22px 24px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.strip-inner p{margin:0;font-size:16.5px;flex:1 1 460px}
.strip-inner strong{font-weight:600}

/* ---- section head ---- */
.section-head{max-width:1240px;margin:0 auto;padding:64px 24px 26px;text-align:center}
.section-head h2{font-size:32px;margin:0 0 12px}
.section-head p{max-width:78ch;margin:0 auto;color:var(--body)}

/* ---- colour-block tile grid ---- */
.tiles-section{padding-bottom:58px}
.tile-grid{max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:2px}
.tile{position:relative;padding:30px 26px 46px;color:#fff;text-decoration:none;display:block;min-height:230px}
.tile h3{color:#fff;font-size:18px;margin:0 0 10px}
.tile p{font-size:14px;line-height:1.55;color:rgba(255,255,255,.86);margin:0}
.tile-tag{display:inline-block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.72);margin-bottom:12px}
.tile-go{position:absolute;left:26px;bottom:22px;font-size:19px;color:rgba(255,255,255,.8)}
.tile:hover{filter:brightness(1.13)}
.tile:hover .tile-go{color:#fff}

/* ---- standards strip ---- */
.accred-inner{max-width:1240px;margin:0 auto;padding:26px 24px;display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.accred-label{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--steel-light)}
.accred-list{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0}
.accred-list li{border:1px solid var(--grey-mid);background:#fff;color:var(--steel);
  padding:9px 16px;font-size:13px;letter-spacing:.06em}

/* ---- prose ---- */
.prose-section{padding:70px 0}
.prose-grid{max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:54px}
.prose-lead h2{font-size:34px;color:var(--blue);line-height:1.16}
.lead-note{color:var(--steel-light);font-size:17px}
.prose-body p{font-size:16.5px}

/* ---- why (list + photo) ---- */
.why-inner{max-width:1240px;margin:0 auto;padding:14px 24px 70px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;align-items:center}
.why-list{list-style:none;margin:0 0 26px;padding:0}
.why-list li{padding:11px 0 11px 28px;border-bottom:1px solid var(--grey-mid);position:relative;font-size:15.5px}
.why-list li::before{content:"";position:absolute;left:0;top:19px;width:12px;height:2px;background:var(--blue)}
.why-list strong{color:var(--ink);font-weight:600}
.why-media img{width:100%;object-fit:cover}

/* ---- steps ---- */
.steps{padding-bottom:70px}
.step-list{max-width:1240px;margin:0 auto;padding:0 24px;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step-list li{background:var(--grey);padding:30px 26px;border-top:3px solid var(--blue)}
.step-n{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;
  font-size:15px;font-weight:600;margin-bottom:14px}
.step-list h3{margin:0 0 8px}
.step-list p{margin:0;font-size:15px}

/* ---- insights band ---- */
.insights-inner{max-width:1240px;margin:0 auto;padding:66px 24px;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px}
.insights-side h2{color:#fff;font-size:30px}
.insights-side p{color:#cfe0f0;font-size:15.5px;margin-bottom:24px}
.insights-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.ins-card{background:#fff}
.ins-thumb{width:100%;height:150px;object-fit:cover}
.ins-body{padding:20px}
.ins-cat{display:block;font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--amber);margin-bottom:9px}
.ins-card h3{font-size:17px;line-height:1.32;margin:0 0 9px}
.ins-card p{font-size:14px;color:var(--body);margin:0 0 12px}
.ins-date{font-size:12.5px;color:var(--steel-light)}

/* ---- full width photo band ---- */
.full-band{background-size:cover;background-position:center}
.full-band-inner{max-width:1240px;margin:0 auto;padding:90px 24px;text-align:center}
.full-band-inner p{margin:0;color:#fff;font-size:27px;font-weight:300;letter-spacing:.02em}

/* ---- faq ---- */
.faq-block{padding-bottom:64px}
.faq-wrap{max-width:900px;margin:0 auto;padding:0 24px}
.faq-item{border-bottom:1px solid var(--grey-mid)}
.faq-item summary{padding:19px 0;font-size:17px;color:var(--ink);cursor:pointer;list-style:none;position:relative;padding-right:34px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:6px;top:17px;font-size:21px;color:var(--blue)}
.faq-item[open] summary::after{content:"\2212"}
.faq-answer{padding:0 0 18px}
.faq-answer p{margin:0;font-size:15.5px}
.faq-more{margin-top:24px}

/* ---- enquiry ---- */
.enquiry-grid{max-width:1240px;margin:0 auto;padding:66px 24px;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:52px}
.enquiry-text h2{font-size:31px;color:var(--blue)}
.enquiry-contact{font-size:15px;line-height:1.6;color:var(--steel);border-left:3px solid var(--blue);padding-left:16px}
.enquiry-form{background:#fff;border:1px solid var(--rule);padding:30px}
.enquiry-form label{display:block;font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--steel);margin-bottom:16px}
.enquiry-form input,.enquiry-form textarea{display:block;width:100%;margin-top:7px;padding:11px 13px;border:1px solid var(--grey-mid);
  border-radius:2px;font-family:inherit;font-size:15px;color:var(--ink);text-transform:none;letter-spacing:normal;background:#fcfdfe}
.enquiry-form input:focus,.enquiry-form textarea:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.field-row{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.form-note{font-size:13px;color:var(--steel-light);margin:14px 0 0}

/* ---- inner page hero ---- */
.page-hero{background:var(--blue);color:#fff}
.page-hero-inner{max-width:1240px;margin:0 auto;padding:58px 24px 62px}
.crumb{font-size:12.5px;letter-spacing:.13em;text-transform:uppercase;color:#9dc0e2;margin:0 0 14px}
.page-hero h1{color:#fff;font-size:42px;margin:0 0 16px;max-width:22ch}
.page-lead{color:#dce8f4;font-size:18px;max-width:70ch;margin:0}

/* ---- service detail blocks ---- */
.svc-wrap{max-width:1240px;margin:0 auto;padding:64px 24px 30px}
.svc{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:start;padding:0 0 54px;margin-bottom:54px;border-bottom:1px solid var(--grey-mid)}
.svc:last-child{border-bottom:0}
.svc-media img{width:100%;height:290px;object-fit:cover}
.svc-tag{display:inline-block;font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--amber);margin-bottom:10px}
.svc h2{font-size:27px}
.svc-blurb{font-size:17px;color:var(--ink)}
.svc-list{list-style:none;margin:18px 0 0;padding:0}
.svc-list li{position:relative;padding:8px 0 8px 24px;font-size:15px;border-bottom:1px dotted var(--grey-mid)}
.svc-list li::before{content:"";position:absolute;left:2px;top:16px;width:7px;height:7px;background:var(--blue)}

/* ---- cta strip ---- */
.cta-strip{background:var(--blue-deep)}
.cta-strip-inner{max-width:1240px;margin:0 auto;padding:34px 24px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}
.cta-strip-inner p{margin:0;color:#fff;font-size:21px;font-weight:300}

/* ---- tables ---- */
.table-section{max-width:1240px;margin:0 auto;padding:60px 24px 30px}
.table-scroll{overflow-x:auto}
.method-table{width:100%;border-collapse:collapse;min-width:680px}
.method-table th{background:var(--blue);color:#fff;text-align:left;padding:14px 16px;font-size:13px;
  letter-spacing:.08em;text-transform:uppercase;font-weight:600}
.method-table td{padding:14px 16px;border-bottom:1px solid var(--grey-mid);font-size:15px;vertical-align:top}
.method-table tbody tr:nth-child(even){background:var(--grey)}
.table-note{max-width:80ch;margin:20px 0 0;font-size:14.5px;color:var(--steel)}

/* ---- split blocks ---- */
.split{max-width:1240px;margin:0 auto;padding:52px 24px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;align-items:center}
.split-rev .split-text{order:2}
.split-media img{width:100%;height:340px;object-fit:cover}
.split-text h2{font-size:28px;color:var(--blue)}

/* ---- note band ---- */
.note-band{margin-top:20px}
.note-inner{max-width:1240px;margin:0 auto;padding:56px 24px}
.note-inner h2{font-size:28px;text-align:center;margin-bottom:32px}
.note-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.note-grid-3{grid-template-columns:repeat(3,1fr)}
.note-grid h3{font-size:17px;color:var(--blue);margin-bottom:7px}
.note-grid p{font-size:14.5px;margin:0}

/* ---- notes list (insights page) ---- */
.notes-wrap{max-width:1240px;margin:0 auto;padding:60px 24px 20px;display:grid;grid-template-columns:repeat(2,1fr);gap:34px}
.note-card{border:1px solid var(--grey-mid);background:#fff}
.note-thumb{width:100%;height:210px;object-fit:cover}
.note-card-body{padding:26px}
.note-cat{display:block;font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--amber);margin-bottom:10px}
.note-card h2{font-size:21px;line-height:1.3}
.note-date{font-size:13px;color:var(--steel-light)}

/* ---- stats ---- */
.stats{background:var(--blue)}
.stats-inner{max-width:1240px;margin:0 auto;padding:44px 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-n{display:block;font-size:38px;color:#fff;font-weight:300;line-height:1.1}
.stat-l{display:block;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:#9dc0e2;margin-top:8px}

/* ---- contact ---- */
.contact-grid-section{padding:60px 0 10px}
.contact-grid{max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(2,1fr);gap:34px}
.contact-card{border:1px solid var(--rule);padding:32px}
.contact-card h2{font-size:23px;color:var(--blue)}
.contact-address{font-style:normal;font-size:15.5px;line-height:1.7;margin-bottom:18px}
.check-list{list-style:none;margin:0 0 16px;padding:0}
.check-list li{position:relative;padding:9px 0 9px 26px;font-size:15px;border-bottom:1px solid var(--grey-mid)}
.check-list li::before{content:"\2713";position:absolute;left:2px;top:9px;color:var(--blue);font-size:14px}
.muted{color:var(--steel-light);font-size:14px}

/* ---- legal ---- */
.legal-inner{max-width:820px;margin:0 auto;padding:56px 24px}
.legal-inner h2{font-size:24px;color:var(--blue);margin-top:34px}
.legal-inner h2:first-child{margin-top:0}
.legal-inner h3{font-size:17px;margin-top:22px}
.legal-inner p{font-size:15.5px}

/* ---- article list (blog) ---- */
.article-list-section{padding:60px 0 30px}
.article-list{max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(2,1fr);gap:32px}

/* ---- footer ---- */
.site-footer{margin-top:0}
.footer-nav-inner{max-width:1240px;margin:0 auto;padding:56px 24px 40px;display:grid;
  grid-template-columns:minmax(0,3fr) repeat(4,minmax(0,2fr));gap:38px}
.foot-col h3{color:#fff;font-size:14px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:10px}
.foot-col a{color:#b9c9db;text-decoration:none;font-size:14.5px}
.foot-col a:hover{color:#fff;text-decoration:underline}
.footer-col-title{color:#fff;font-size:14px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px}
.footer-link{display:block;margin-bottom:10px;color:#b9c9db;text-decoration:none;font-size:14.5px}
.footer-link:hover{color:#fff;text-decoration:underline}
.foot-brand .logo-mark{background:#fff;color:var(--blue);margin-bottom:16px}
.foot-blurb{font-size:14px;color:#93a8bf;margin:0;max-width:36ch}
.foot-address{font-style:normal;font-size:14.5px;color:#b9c9db;line-height:1.75}
.foot-address a{color:#b9c9db}
/* footer-inner / footer-bottom are the simple copyright containers the article
   template also renders — kept deliberately plain, no multi-column grid here. */
.footer-inner{max-width:1240px;margin:0 auto;padding:20px 24px;text-align:center;border-top:1px solid rgba(255,255,255,.14)}
.footer-bottom{display:block;font-size:13px;color:#8ba0b8;line-height:1.9}
.footer-bottom span{display:block}

/* ---- responsive ---- */
@media (max-width:1080px){
  .tile-grid{grid-template-columns:repeat(2,1fr)}
  .note-grid,.note-grid-3{grid-template-columns:repeat(2,1fr)}
  .stats-inner{grid-template-columns:repeat(2,1fr);gap:30px}
  .insights-inner{grid-template-columns:1fr;gap:34px}
  .footer-nav-inner{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  h1{font-size:34px}.hero h1{font-size:38px}.page-hero h1{font-size:31px}
  .header-inner{gap:14px}
  .header-nav{width:100%;margin-left:0;gap:16px;order:3}
  .header-cta{order:2;margin-left:auto;padding:10px 18px;font-size:13px}
  .hero-inner{padding:62px 22px 68px}
  .prose-grid,.why-inner,.svc,.split,.enquiry-grid,.contact-grid,.notes-wrap,.article-list{grid-template-columns:1fr;gap:30px}
  .split-rev .split-text{order:0}
  .step-list{grid-template-columns:1fr}
  .insights-cards{grid-template-columns:1fr}
  .svc-media img,.split-media img{height:230px}
  .section-head{padding-top:48px}
}
@media (max-width:560px){
  .tile-grid{grid-template-columns:1fr}
  .note-grid,.note-grid-3,.stats-inner{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .utility-inner{gap:10px;font-size:12px}
  .hero h1{font-size:31px}
  .full-band-inner p{font-size:20px}
}