:root {
  --navy: #0b2447;
  --navy-deep: #071a34;
  --blue: #1769aa;
  --aqua: #18a9b8;
  --ink: #152235;
  --muted: #657386;
  --line: #dfe6ec;
  --soft: #f5f8fa;
  --white: #ffffff;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow: 0 20px 50px rgba(9, 36, 71, .12);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(11, 36, 71, .08);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 900;
  letter-spacing: .03em;
  color: var(--navy);
}

.brand img {
  width: 58px;
  height: 42px;
  object-fit: cover;
  object-position: 50% 48%;
  border-radius: 6px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: .95rem;
  font-weight: 650;
}

.primary-nav > a:not(.nav-cta) {
  position: relative;
  color: #334356;
}

.primary-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--blue);
  transition: width .2s ease;
}

.primary-nav > a:hover::after { width: 100%; }

.nav-cta {
  color: var(--white);
  background: var(--navy);
  padding: 11px 18px;
  border-radius: 999px;
}

.nav-cta:hover { background: var(--blue); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 42px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--navy);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 86px 0 82px;
  background:
    radial-gradient(circle at 92% 12%, rgba(24, 169, 184, .10), transparent 28%),
    linear-gradient(180deg, #f8fbfd 0%, #ffffff 100%);
}

.hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 7px;
  height: 100%;
  background: var(--aqua);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  align-items: center;
  gap: 72px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.maintenance h2,
.about h2,
.contact-section h2 {
  margin: 0;
  color: var(--navy-deep);
  letter-spacing: -.045em;
  line-height: 1.05;
}

.hero h1 {
  max-width: 650px;
  font-size: clamp(3rem, 7vw, 5.6rem);
}

.hero-lead {
  max-width: 640px;
  margin: 26px 0 30px;
  color: #4c5b6d;
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 800;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 12px 24px rgba(11, 36, 71, .18);
}
.btn-primary:hover { background: var(--blue); }
.btn-secondary {
  color: var(--navy);
  background: var(--white);
  border-color: #cfd9e2;
}
.btn-secondary:hover { box-shadow: 0 10px 25px rgba(8, 35, 68, .08); }
.btn-full { width: 100%; }

.contact-strip {
  display: flex;
  gap: 34px;
  margin-top: 38px;
  padding-top: 25px;
  border-top: 1px solid var(--line);
}
.contact-strip div { display: grid; gap: 2px; }
.contact-label {
  color: var(--muted);
  font-size: .74rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.contact-strip a { color: var(--navy); font-size: 1.04rem; font-weight: 850; }

.hero-visual { position: relative; }
.image-frame {
  overflow: hidden;
  min-height: 480px;
  border-radius: var(--radius-lg);
  background: #e7edf1;
  box-shadow: var(--shadow);
}
.image-frame img {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
}

.hero-note {
  position: absolute;
  left: -26px;
  bottom: 28px;
  max-width: 310px;
  display: grid;
  gap: 3px;
  padding: 18px 20px;
  border-left: 4px solid var(--aqua);
  background: var(--white);
  box-shadow: 0 16px 40px rgba(8, 35, 68, .16);
}
.hero-note strong { color: var(--navy); }
.hero-note span { color: var(--muted); font-size: .92rem; }

.service-intro { padding: 105px 0; }
.split-heading {
  display: grid;
  grid-template-columns: 1fr .85fr;
  align-items: end;
  gap: 50px;
  margin-bottom: 44px;
}
.section-heading h2,
.maintenance h2,
.about h2,
.contact-section h2 { font-size: clamp(2.2rem, 4vw, 3.75rem); }
.split-heading > p {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 1.05rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service-card {
  min-height: 275px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
  transition: background .2s ease, transform .2s ease;
}
.service-card:hover { background: var(--soft); }
.service-card-featured { background: var(--navy); }
.service-card-featured:hover { background: var(--navy-deep); }
.service-card-featured h3,
.service-card-featured p,
.service-card-featured a,
.service-card-featured .service-number { color: var(--white); }
.service-number {
  margin-bottom: 42px;
  color: #8a99a8;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
}
.service-card h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 1.3rem;
}
.service-card p {
  margin: 0;
  color: var(--muted);
  font-size: .94rem;
}
.service-card a {
  margin-top: auto;
  padding-top: 24px;
  color: var(--blue);
  font-weight: 800;
  font-size: .92rem;
}
.service-card-contact { background: #eef8f8; }

.maintenance {
  padding: 100px 0;
  background: var(--navy-deep);
  color: var(--white);
}
.maintenance-grid {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: 72px;
  align-items: center;
}
.maintenance-image-wrap {
  overflow: hidden;
  min-height: 430px;
  border-radius: 6px;
  background: #dce4ea;
}
.maintenance-image-wrap img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
}
.maintenance h2 { color: var(--white); }
.maintenance-copy > p:not(.eyebrow) { color: #c2ced9; font-size: 1.04rem; }
.check-list {
  display: grid;
  gap: 0;
  margin: 30px 0;
  border-top: 1px solid rgba(255,255,255,.16);
}
.check-list div {
  display: grid;
  grid-template-columns: 30px 1fr;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,.16);
}
.check-list span { color: #6bd7d9; font-weight: 900; }
.check-list p { margin: 0; color: #eef5f8; }
.text-link { color: #6bd7d9; font-weight: 850; }
.text-link span { display: inline-block; transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }

.about { padding: 105px 0; }
.about-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 90px;
  align-items: center;
}
.about-copy > p:not(.eyebrow) { color: var(--muted); font-size: 1.04rem; }
.brand-photo { margin: 0; }
.brand-photo img {
  width: 100%;
  min-height: 360px;
  object-fit: cover;
  border-radius: 3px;
  box-shadow: var(--shadow);
}
.brand-photo figcaption { margin-top: 10px; color: var(--muted); font-size: .82rem; }

.contact-section {
  padding: 100px 0;
  background: var(--soft);
  border-top: 1px solid var(--line);
}
.contact-grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 75px;
  align-items: start;
}
.contact-copy > p:not(.eyebrow) { color: var(--muted); }
.contact-list { margin-top: 36px; display: grid; border-top: 1px solid var(--line); }
.contact-list a {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.contact-list span { color: var(--muted); }
.contact-list strong { color: var(--navy); }

.enquiry-form {
  padding: 32px;
  background: var(--white);
  border: 1px solid #dbe4eb;
  box-shadow: 0 18px 45px rgba(10, 35, 68, .08);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.enquiry-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 17px;
  color: var(--navy);
  font-size: .86rem;
  font-weight: 750;
}
.enquiry-form input,
.enquiry-form select,
.enquiry-form textarea {
  width: 100%;
  border: 1px solid #cfd9e2;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  outline: none;
  padding: 13px 14px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.enquiry-form textarea { resize: vertical; }
.enquiry-form input:focus,
.enquiry-form select:focus,
.enquiry-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 105, 170, .10);
}
.form-note { margin: 11px 0 0; color: var(--muted); font-size: .8rem; text-align: center; }

.site-footer { padding: 58px 0 20px; color: #cbd5df; background: #06162c; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr .7fr .7fr;
  gap: 50px;
  padding-bottom: 40px;
}
.brand-footer { color: var(--white); }
.footer-brand p { max-width: 380px; margin: 12px 0 0; color: #95a6b7; }
.footer-links, .footer-contact { display: grid; align-content: start; gap: 10px; }
.footer-links a:hover, .footer-contact a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.12);
  color: #8193a4;
  font-size: .85rem;
}

@media (max-width: 1000px) {
  .hero-grid, .maintenance-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 52px; }
  .hero-visual { max-width: 760px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .split-heading { grid-template-columns: 1fr; gap: 18px; }
  .maintenance-grid, .about-grid, .contact-grid { gap: 44px; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .site-header { backdrop-filter: none; }
  .nav-wrap { min-height: 68px; }
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 68px;
    left: 14px;
    right: 14px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 12px 10px; }
  .primary-nav > a:not(.nav-cta)::after { display: none; }
  .nav-cta { margin-top: 6px; text-align: center; }
  .hero { padding: 62px 0 58px; }
  .hero h1 { font-size: clamp(2.8rem, 14vw, 4.1rem); }
  .hero-lead { font-size: 1.05rem; }
  .contact-strip { gap: 18px; flex-direction: column; }
  .image-frame, .image-frame img { min-height: 350px; }
  .hero-note { left: 16px; right: 16px; bottom: 16px; max-width: none; }
  .service-intro, .maintenance, .about, .contact-section { padding: 74px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 235px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .enquiry-form { padding: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}