/* ==========================================================================
   GMB Structural — design system
   Direction: engineering precision. Drafting rules, tracked uppercase labels,
   a single brand accent, and photography given room to carry the page.
   ========================================================================== */

@font-face{font-family:Archivo;src:url(/assets/fonts/archivo-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Archivo;src:url(/assets/fonts/archivo-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Source Sans 3";src:url(/assets/fonts/sourcesans-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Source Sans 3";src:url(/assets/fonts/sourcesans-600.woff2) format("woff2");font-weight:600;font-display:swap}

:root{
  /* neutrals carry a slight cool bias — concrete, not putty */
  --ink:#14181C; --ink-2:#333C45; --muted:#5A6470; --faint:#8A949E;
  --paper:#fff; --surface:#F4F6F7; --surface-2:#ECEFF1; --rule:#DFE4E8;
  --navy:#0E2A42; 
  --navy-2:#16374F;
  --gold:#BEA441; --gold-deep:#8A6512; --gold-soft:#F6F0DC;
  --teal:#2E9C8A; --teal-deep:#1F6E61;

  --wrap:1240px; --gutter:clamp(20px,5vw,64px);
  --sp-section:clamp(64px,9vw,128px);
  --r:2px;                               /* engineering: near-square, not pill */
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 1px 2px rgba(20,24,28,.05),0 12px 32px -18px rgba(20,24,28,.28);
  --shadow-lift:0 2px 4px rgba(20,24,28,.06),0 24px 48px -22px rgba(20,24,28,.34);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Source Sans 3",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  font-size:clamp(16px,.42vw + 15px,17.5px);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit}
:where(a,button,input,textarea,summary):focus-visible{outline:2px solid var(--gold-deep);outline-offset:3px;border-radius:var(--r)}

h1,h2,h3,h4{font-family:Archivo,system-ui,sans-serif;font-weight:700;margin:0;line-height:1.08;letter-spacing:-.018em;text-wrap:balance}
h1{font-size:clamp(2.4rem,6.2vw,4.4rem)}
h2{font-size:clamp(1.85rem,3.9vw,3rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.4rem);letter-spacing:-.01em}
p{margin:0}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--sp-section)}
.section--tint{background:var(--surface)}
.section--ink{background:var(--ink);color:#fff}
.stack{display:flex;flex-direction:column}
.stack>*+*{margin-top:var(--gap,24px)}

/* eyebrow: the drafting-label device used throughout */
.eyebrow{
  font-family:Archivo,sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.19em;
  text-transform:uppercase;color:var(--gold-deep);display:flex;align-items:center;gap:14px;margin:0
}
.eyebrow::after{content:"";flex:1;height:1px;background:var(--rule);max-width:110px}
.section--ink .eyebrow{color:var(--gold)}
.section--ink .eyebrow::after{background:rgba(255,255,255,.22)}

.lede{font-size:clamp(1.08rem,1.5vw,1.3rem);line-height:1.6;color:var(--ink-2);max-width:62ch}
.muted{color:var(--muted)}
.measure{max-width:68ch}

/* ---------- buttons ---------- */
.btn{
  --btn-bg:var(--gold);--btn-fg:#14181C;
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  background:var(--btn-bg);color:var(--btn-fg);text-decoration:none;
  font-family:Archivo,sans-serif;font-weight:600;font-size:.82rem;letter-spacing:.13em;text-transform:uppercase;
  padding:16px 30px;border:1px solid transparent;border-radius:var(--r);cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(190,164,65,.7)}
.btn:active{transform:translateY(0)}
.btn .arw{transition:transform .25s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn--ghost{--btn-bg:transparent;--btn-fg:#fff;border-color:rgba(255,255,255,.55)}
.btn--ghost:hover{--btn-bg:#fff;--btn-fg:#14181C;box-shadow:none}
.btn--dark{--btn-bg:var(--ink);--btn-fg:#fff}
.btn--dark:hover{box-shadow:0 10px 24px -10px rgba(20,24,28,.6)}

/* ---------- header ---------- */
.hdr{
  position:fixed;inset:0 0 auto;z-index:60;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.hdr__in{display:flex;align-items:center;gap:28px;height:82px}
.hdr__logo{margin-right:auto;display:flex;align-items:center;flex:none}
.hdr__logo img{height:44px;width:auto;transition:height .3s var(--ease)}
.hdr__nav{display:flex;align-items:center;gap:6px}
.hdr__nav a{
  text-decoration:none;font-family:Archivo,sans-serif;font-weight:600;font-size:.78rem;
  letter-spacing:.13em;text-transform:uppercase;padding:10px 14px;border-radius:var(--r);
  color:#fff;position:relative;transition:color .2s var(--ease)
}
.hdr__nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--gold);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)
}
.hdr__nav a:hover::after,.hdr__nav a[aria-current="page"]::after{transform:scaleX(1)}
.hdr--solid{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom-color:var(--rule);box-shadow:0 1px 20px rgba(20,24,28,.06)}
.hdr--solid .hdr__nav a{color:var(--ink-2)}
.hdr--solid .hdr__logo img{height:38px}
.hdr--solid .btn--ghost{--btn-fg:var(--ink);border-color:var(--ink)}
.hdr--solid .btn--ghost:hover{--btn-bg:var(--ink);--btn-fg:#fff}
/* pages without a photographic hero start solid */
.hdr--static{position:sticky;background:#fff;border-bottom-color:var(--rule)}
.hdr--static .hdr__nav a{color:var(--ink-2)}

.burger{display:none;background:none;border:0;padding:12px;cursor:pointer;color:#fff;flex:none}
.hdr--solid .burger,.hdr--static .burger{color:var(--ink)}
.burger span{display:block;width:24px;height:2px;background:currentColor;transition:transform .3s var(--ease),opacity .2s var(--ease)}
.burger span+span{margin-top:6px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:55;background:var(--ink);color:#fff;
  display:flex;flex-direction:column;justify-content:center;padding:96px var(--gutter) 48px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .32s var(--ease),transform .32s var(--ease),visibility .32s
}
.drawer[data-open="true"]{opacity:1;visibility:visible;transform:none}
.drawer a{
  text-decoration:none;font-family:Archivo,sans-serif;font-weight:700;
  font-size:clamp(1.7rem,7vw,2.4rem);letter-spacing:-.02em;padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;align-items:center;
  opacity:0;transform:translateY(14px);transition:opacity .4s var(--ease),transform .4s var(--ease),color .2s
}
.drawer[data-open="true"] a{opacity:1;transform:none}
.drawer[data-open="true"] a:nth-child(1){transition-delay:.06s}
.drawer[data-open="true"] a:nth-child(2){transition-delay:.11s}
.drawer[data-open="true"] a:nth-child(3){transition-delay:.16s}
.drawer[data-open="true"] a:nth-child(4){transition-delay:.21s}
.drawer[data-open="true"] a:nth-child(5){transition-delay:.26s}
.drawer a:hover{color:var(--gold)}
.drawer a span{color:var(--gold);font-size:.9rem}

@media (max-width:960px){
  .hdr__nav,.hdr .btn{display:none}
  .burger{display:block}
}

/* ---------- hero ---------- */
.hero{position:relative;display:grid;align-items:end;min-height:min(88vh,760px);isolation:isolate;overflow:hidden}
.hero--tall{min-height:min(94vh,880px)}
.hero__bg{position:absolute;inset:0;z-index:-2;object-fit:cover;width:100%;height:100%}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(14,24,32,.72) 0%,rgba(14,24,32,.42) 42%,rgba(14,24,32,.86) 100%)
}
.hero__in{padding-block:clamp(72px,12vh,140px);color:#fff;width:100%}
.hero h1{color:#fff;max-width:17ch}
.hero .lede{color:rgba(255,255,255,.9);margin-top:22px;max-width:56ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
/* thin gold rule — a drafting datum line */
.hero__rule{width:64px;height:3px;background:var(--gold);margin-bottom:26px}

/* interior page header (no giant hero) */
.phead{position:relative;isolation:isolate;overflow:hidden;background:var(--ink)}
.phead__bg{position:absolute;inset:0;z-index:-2;object-fit:cover;width:100%;height:100%;opacity:.42}
.phead::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(14,24,32,.86),rgba(14,24,32,.72))}
.phead__in{padding-block:clamp(130px,17vh,190px) clamp(52px,7vh,84px);color:#fff}
.phead h1{color:#fff;margin-top:16px}
.phead .lede{color:rgba(255,255,255,.86);margin-top:18px}

/* ---------- cards ---------- */
.grid{display:grid;gap:clamp(16px,2.2vw,26px)}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(276px,1fr))}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}

.card{
  position:relative;display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;text-decoration:none;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease)
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift);border-color:#CFD6DC}
.card__media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.card:hover .card__media img{transform:scale(1.055)}
.card__body{padding:26px 26px 30px;display:flex;flex-direction:column;gap:11px;flex:1}
.card__body h3{color:var(--ink)}
.card__body p{color:var(--muted);font-size:.97rem}
.card__more{
  margin-top:auto;padding-top:6px;font-family:Archivo,sans-serif;font-weight:600;font-size:.76rem;
  letter-spacing:.13em;text-transform:uppercase;color:var(--gold-deep);display:flex;align-items:center;gap:8px
}
.card__more .arw{transition:transform .3s var(--ease)}
.card:hover .card__more .arw{transform:translateX(5px)}

/* ---------- numbered process ---------- */
.steps{counter-reset:s;display:grid;gap:0;border-top:1px solid var(--rule)}
.steps li{
  counter-increment:s;list-style:none;display:grid;grid-template-columns:64px 1fr;gap:clamp(14px,2.5vw,32px);
  padding:24px 0;border-bottom:1px solid var(--rule);align-items:start
}
.steps li::before{
  content:counter(s,decimal-leading-zero);font-family:Archivo,sans-serif;font-weight:700;
  font-size:1rem;color:var(--gold-deep);letter-spacing:.04em;padding-top:2px
}
.steps li span{color:var(--ink-2)}

/* ---------- feature list (ticked) ---------- */
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.ticks li{display:grid;grid-template-columns:22px 1fr;gap:12px;color:var(--ink-2);align-items:start}
.ticks li::before{
  content:"";width:8px;height:8px;margin-top:.55em;background:var(--gold);
  transform:rotate(45deg);border-radius:1px
}
.section--ink .ticks li{color:rgba(255,255,255,.84)}

/* ---------- split ---------- */
.split{display:grid;gap:clamp(30px,5vw,72px);align-items:center}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr}.split--wide{grid-template-columns:1.15fr .85fr}}
.split__media{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3}
.split__media img{width:100%;height:100%;object-fit:cover}

/* ---------- CTA band ---------- */
.cta{position:relative;isolation:isolate;overflow:hidden;background:var(--navy);color:#fff}
.cta__bg{position:absolute;inset:0;z-index:-2;object-fit:cover;width:100%;height:100%;opacity:.3}
.cta::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(120deg,rgba(14,42,66,.94),rgba(14,42,66,.76))}
.cta h2{color:#fff;max-width:20ch}
.cta p{color:rgba(255,255,255,.82)}

/* ---------- contact ---------- */
.contact-grid{display:grid;gap:clamp(32px,5vw,64px)}
@media (min-width:900px){.contact-grid{grid-template-columns:.85fr 1.15fr}}
.detail{display:grid;grid-template-columns:26px 1fr;gap:14px;align-items:start}
.detail svg{width:20px;height:20px;color:var(--gold-deep);margin-top:4px}
.detail a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--rule);transition:border-color .2s}
.detail a:hover{border-color:var(--gold)}
.detail dt{font-family:Archivo,sans-serif;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:3px}
.detail dd{margin:0}

form.enquiry{display:grid;gap:18px}
.field{display:grid;gap:7px}
.field label{font-family:Archivo,sans-serif;font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea{
  font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--rule);
  border-radius:var(--r);padding:14px 16px;width:100%;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(190,164,65,.18)}
.field textarea{resize:vertical;min-height:140px}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.form-status{padding:13px 16px;border-left:3px solid currentColor;background:var(--surface);font-size:.95rem}
.form-status[data-kind=success]{color:var(--teal-deep)}
.form-status[data-kind=error]{color:#A3282B}
.form-status[data-kind=pending]{color:var(--gold-deep)}

/* ---------- footer ---------- */
.ftr{background:var(--ink);color:rgba(255,255,255,.72);padding-block:clamp(52px,7vw,80px) 30px}
.ftr a{color:rgba(255,255,255,.72);text-decoration:none;transition:color .2s}
.ftr a:hover{color:var(--gold)}
.ftr__top{display:grid;gap:40px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}
.ftr h4{font-family:Archivo,sans-serif;font-size:.72rem;letter-spacing:.17em;text-transform:uppercase;color:#fff;margin-bottom:16px;font-weight:600}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:.95rem}
.ftr__logo img{height:46px;width:auto;margin-bottom:16px}
.ftr__base{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:24px;font-size:.85rem;color:rgba(255,255,255,.5)}

/* ---------- scroll reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal-delay="1"]{transition-delay:.09s}
[data-reveal-delay="2"]{transition-delay:.18s}
[data-reveal-delay="3"]{transition-delay:.27s}
[data-reveal-delay="4"]{transition-delay:.36s}
[data-reveal-delay="5"]{transition-delay:.45s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:12px 20px;z-index:100}
.skip:focus{left:12px;top:12px}
.totop{
  position:fixed;right:20px;bottom:20px;z-index:50;width:46px;height:46px;display:grid;place-items:center;
  background:var(--ink);color:#fff;border:0;border-radius:var(--r);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.3s var(--ease)
}
.totop[data-show="true"]{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--gold);color:var(--ink)}

/* --- overlay contexts: eyebrows and rules must read on dark imagery --- */
.hero .eyebrow,.phead .eyebrow,.cta .eyebrow{color:var(--gold)}
.hero .eyebrow::after,.phead .eyebrow::after,.cta .eyebrow::after{background:rgba(255,255,255,.3)}

/* the scrim is weighted to the left where the copy sits, so text never lands
   on a bright patch of photograph regardless of the image used */
.hero::after{
  background:
    linear-gradient(100deg,rgba(10,16,22,.9) 0%,rgba(10,16,22,.74) 38%,rgba(10,16,22,.34) 68%,rgba(10,16,22,.5) 100%),
    linear-gradient(180deg,rgba(10,16,22,.55) 0%,rgba(10,16,22,.1) 34%,rgba(10,16,22,.72) 100%);
}
@media (max-width:760px){
  .hero::after{background:linear-gradient(180deg,rgba(10,16,22,.72) 0%,rgba(10,16,22,.6) 45%,rgba(10,16,22,.88) 100%)}
}

/* logo inverts with the header state */
.hdr__logo img{display:block}
.hdr__logo .logo-dark{display:none}
.hdr--solid .hdr__logo .logo-dark,.hdr--static .hdr__logo .logo-dark{display:block}
.hdr--solid .hdr__logo .logo-light,.hdr--static .hdr__logo .logo-light{display:none}

/* --- utilities ---------------------------------------------------------
   These exist as classes rather than inline style attributes so the site can
   keep a strict `style-src 'self'` CSP. Inline styles are blocked outright. */
.g12{--gap:12px}.g14{--gap:14px}.g16{--gap:16px}.g18{--gap:18px}.g20{--gap:20px}
.g22{--gap:22px}.g24{--gap:24px}.g26{--gap:26px}.g30{--gap:30px}.g40{--gap:40px}
.g44{--gap:44px}.g52{--gap:52px}
.start{align-self:flex-start}
.align-start{align-items:flex-start}
.mt10{margin-top:10px}
.no-m{margin:0}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.cta-copy{color:rgba(255,255,255,.82);max-width:52ch}
.ftr-blurb{font-size:.93rem;max-width:32ch}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.plain-link{text-decoration:none;border-bottom:1px solid var(--rule)}
.plain-link:hover{border-color:var(--gold)}
.pad-lg{padding-block:clamp(80px,14vh,160px)}
/* footer column headings are h2 for a valid outline, but sized as labels */
.ftr h2{font-family:Archivo,sans-serif;font-size:.72rem;letter-spacing:.17em;text-transform:uppercase;color:#fff;margin:0 0 16px;font-weight:600;line-height:1.4}

/* tap-to-call in the mobile drawer — the header CTA is hidden at this width */
.drawer__call{
  margin-top:30px;background:var(--gold);color:#14181C!important;border:0!important;
  justify-content:center!important;font-size:1rem!important;letter-spacing:.13em!important;
  text-transform:uppercase;padding:18px 24px!important;border-radius:var(--r)
}
.drawer__call:hover{color:#14181C!important;filter:brightness(1.06)}

/* contact details: dt/dd sit directly in the wrapping div so the <dl> stays valid,
   which means the icon is positioned rather than sitting in a nested wrapper */
.detail{grid-template-columns:26px 1fr;grid-template-rows:auto auto;align-items:start}
.detail svg{grid-row:1 / span 2}
.detail dt{grid-column:2;color:var(--muted)}   /* was --faint: 2.9:1, failed contrast */
.detail dd{grid-column:2}
.cf-turnstile{min-height:65px}                 /* reserve space so late render cannot shift layout */