:root {
  --navy: #0c2a35;
  --green: #0f6b5c;
  --gold: #c8963e;
  --gold-text: #8a6420;
  --cream: #f5f1ea;
  --sage: #e6ece8;
  --ink: #12303a;
  --muted: #55636a;
  --line: #d9d4ca;
  --serif: "Noto Serif", Georgia, serif;
  --sans: "Noto Sans", system-ui, -apple-system, Segoe UI, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: #fff;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }

.wrap { width: min(1120px, 100% - 48px); margin-inline: auto; }

/* Header */
.site-header { border-bottom: 1px solid #ece8e1; background: #fff; }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding-block: 18px;
}
.logo img { width: 210px; height: auto; }
.nav { display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 22px; flex-wrap: wrap; justify-content: flex-end; }
.nav ul a {
  text-decoration: none; font-size: 16px; padding-bottom: 3px;
  border-bottom: 2px solid transparent; transition: border-color .2s;
}
.nav ul a:hover { border-color: var(--line); }
.nav ul a[aria-current="page"] { border-color: var(--gold); }

/* Buttons */
.btn {
  display: inline-block; text-decoration: none; font-size: 15px;
  padding: 14px 22px; border-radius: 3px; border: 1px solid var(--navy);
  transition: background .2s, color .2s, transform .2s;
}
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: #163f4e; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: var(--navy); color: #fff; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }

/* Typography */
.eyebrow {
  font-size: 12.5px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
  color: var(--green); margin: 0 0 14px;
}
.eyebrow.gold { color: var(--gold-text); }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; margin: 0; line-height: 1.12; color: var(--navy); }
h1 { font-size: clamp(40px, 6.4vw, 72px); }
h2 { font-size: clamp(28px, 3.6vw, 40px); }
.lead { font-size: 19px; color: var(--muted); max-width: 580px; margin: 22px 0 0; }
.small { font-size: 14px; color: var(--muted); letter-spacing: .02em; }
.rule { width: 84px; height: 2px; background: var(--gold); margin: 36px 0 0; border: 0; }

/* Hero */
.hero {
  background: linear-gradient(115deg, var(--cream) 0%, #f8f6f2 55%, #fdfcfb 100%);
  padding-block: 56px 48px;
}
.hero .small { margin-top: 32px; }
.hero.dark { background: var(--navy); color: #fff; }
.hero.dark h1, .hero.dark .lead { color: #fff; }
.hero.dark .lead { opacity: .82; }
.hero.dark .eyebrow { color: var(--gold); }
.hero.sage { background: linear-gradient(115deg, var(--sage) 0%, #f2f5f3 60%, #fbfcfb 100%); }
.accent-gold { color: var(--gold); }

.crumbs { font-size: 14px; margin-bottom: 26px; }
.crumbs a { text-decoration: none; opacity: .75; }
.crumbs a:hover { opacity: 1; text-decoration: underline; }

/* Sections */
.section { padding-block: 64px; }
.section.cream { background: var(--cream); }
.section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 32px; margin-bottom: 32px; flex-wrap: wrap;
}
.section-head p { max-width: 360px; margin: 0; color: var(--muted); font-size: 15px; }

/* Three specialisation cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  position: relative; display: flex; flex-direction: column;
  min-height: 218px; padding: 34px 24px 28px; border-radius: 6px;
  text-decoration: none; overflow: hidden;
  border-top: 5px solid var(--green);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover, .card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px -18px rgba(12, 42, 53, .45);
}
.card:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.card .tag { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 22px; }
.card h3 { font-weight: 700; font-size: 32px; line-height: 1.32; }
.card p { margin: 12px 0 0; font-size: 15px; }
.card .more {
  margin-top: auto; padding-top: 22px; font-size: 14px; font-weight: 600;
  opacity: .7; transition: opacity .2s, letter-spacing .2s;
}
.card:hover .more { opacity: 1; letter-spacing: .02em; }

.card-audit { background: var(--navy); color: #fff; border-top-color: var(--gold); }
.card-audit h3 { color: #fff; }
.card-audit h3 span { color: var(--gold); }
.card-audit .tag { color: #d9dee0; }
.card-audit p { color: #e6c98f; }
.card-services { background: var(--cream); color: var(--muted); }
.card-green { background: var(--sage); color: var(--muted); }
.card-services .more, .card-green .more { color: var(--navy); }

/* Why us */
.why { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.why p { color: var(--muted); max-width: 470px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  background: #fff; border: 1px solid var(--line); padding: 12px 14px;
  font-size: 15px; font-weight: 700; color: var(--navy);
}

/* Subpage content */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tile {
  background: #fff; border: 1px solid var(--line); border-radius: 6px;
  padding: 26px 24px;
}
.tile h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.tile p { margin: 0; color: var(--muted); font-size: 15px; }
.tile .num { font-family: var(--serif); color: var(--gold); font-size: 28px; display: block; margin-bottom: 10px; }
.theme-audit .tile { border-top: 4px solid var(--gold); }
.theme-services .tile, .theme-green .tile { border-top: 4px solid var(--green); }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li { border-top: 2px solid var(--navy); padding-top: 16px; }
.steps li::before {
  counter-increment: s; content: "0" counter(s);
  font-family: var(--serif); font-size: 24px; color: var(--gold-text); display: block; margin-bottom: 6px;
}
.steps strong { display: block; color: var(--navy); margin-bottom: 4px; }
.steps span { color: var(--muted); font-size: 15px; }

/* Other areas (subpage footer links) */
.others { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.others .card { min-height: 170px; }

/* CTA */
.cta .wrap { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta p { margin: 10px 0 0; color: var(--muted); }

.site-footer { border-top: 1px solid #ece8e1; padding-block: 24px; font-size: 13.5px; color: var(--muted); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 900px) {
  .cards, .grid-3 { grid-template-columns: 1fr; }
  .why { grid-template-columns: 1fr; gap: 28px; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .site-header .wrap { flex-direction: column; align-items: flex-start; }
  .logo img { width: 160px; }
  .nav { align-items: flex-start; width: 100%; }
  .nav ul { justify-content: flex-start; gap: 18px; }
  .grid-2, .others, .steps { grid-template-columns: 1fr; }
  .section { padding-block: 48px; }
  .card h3 { font-size: 28px; }
}