:root {
  --navy: #12263a;
  --steel: #2f5d7c;
  --sky: #dfe8ef;
  --line: #c9d5df;
  --paper: #f5f8fb;
  --white: #ffffff;
  --text: #1a2732;
  --muted: #4f6070;
  --max: 1180px;
  --radius: 8px;
  --shadow: 0 12px 28px rgba(18, 38, 58, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", Tahoma, sans-serif;
  color: var(--text);
  background:
    linear-gradient(rgba(248, 251, 254, 0.95), rgba(241, 246, 250, 0.95)),
    url("../stock images/engineers-architects-and-designers-collaborate-t-2026-01-06-10-43-20-utc.jpg") center/cover fixed;
  line-height: 1.55;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  font-family: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin: 0 0 0.65rem;
  color: var(--navy);
}

p {
  margin: 0 0 1rem;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.header-grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 1rem;
  align-items: center;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand strong {
  font-family: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--navy);
}

.brand span {
  font-size: 0.84rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--navy);
  border-radius: 6px;
  width: 42px;
  height: 42px;
}

.main-nav {
  position: absolute;
  top: 76px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.22s ease;
}

.main-nav.open {
  transform: scaleY(1);
}

.main-nav ul {
  margin: 0;
  padding: 0.65rem 1rem 1rem;
  list-style: none;
  display: grid;
  gap: 0.25rem;
}

.main-nav a {
  display: block;
  padding: 0.55rem 0.75rem;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--navy);
  font-weight: 600;
}

.main-nav a.active,
.main-nav a:hover {
  border-color: var(--line);
  background: var(--paper);
}

.header-phone {
  display: none;
  font-weight: 700;
  color: var(--steel);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 66vh;
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7, 20, 33, 0.78), rgba(18, 38, 58, 0.52));
  z-index: -1;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero-panel {
  padding: 3.25rem 0 3rem;
  color: var(--white);
}

.kicker {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.77rem;
  padding: 0.22rem 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.52);
  margin-bottom: 0.95rem;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 6vw, 3.5rem);
  max-width: 800px;
}

.hero p {
  max-width: 640px;
  font-size: 1.05rem;
  color: #f0f4f8;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  display: inline-block;
  padding: 0.78rem 1.2rem;
  border-radius: 0;
  border: 1px solid var(--line);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--steel);
  border-color: var(--steel);
  color: var(--white);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

section {
  padding: 4rem 0;
}

.section-head {
  display: grid;
  gap: 0.6rem;
  margin-bottom: 1.7rem;
}

.section-head h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.grid {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1.2rem;
  box-shadow: 0 2px 0 rgba(18, 38, 58, 0.05);
}

.card h3 {
  font-size: 1.4rem;
}

.blueprint {
  background:
    linear-gradient(rgba(201, 213, 223, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 213, 223, 0.34) 1px, transparent 1px),
    linear-gradient(180deg, #f5f9fd 0%, #edf3f8 100%);
  background-size: 24px 24px, 24px 24px, auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.side-by {
  display: grid;
  gap: 1.2rem;
}

.side-by .media {
  border: 1px solid var(--line);
  background: var(--white);
  overflow: hidden;
}

.side-by .media img {
  width: 100%;
  height: 100%;
  min-height: 270px;
  object-fit: cover;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.stat {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 0.85rem;
}

.stat strong {
  display: block;
  color: var(--steel);
  font-size: 1.45rem;
  font-family: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
}

.strip {
  background: linear-gradient(90deg, #173147 0%, #2f5d7c 100%);
  color: var(--white);
  border-top: 1px solid #284c67;
  border-bottom: 1px solid #284c67;
}

.strip .container {
  display: grid;
  gap: 1rem;
  padding: 1.15rem 0;
}

.strip h3,
.strip p {
  margin: 0;
  color: var(--white);
}

.page-hero {
  padding: 4.75rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(rgba(8, 26, 42, 0.85), rgba(12, 36, 56, 0.83)),
    url("../stock images/manager-meeting-with-engineer-at-outdoor-site-disc-2026-01-11-10-36-40-utc.jpg") center/cover;
  color: var(--white);
}

.page-hero h1,
.page-hero p {
  color: var(--white);
}

.split {
  display: grid;
  gap: 1rem;
}

.contact-block {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1.2rem;
}

form {
  display: grid;
  gap: 0.8rem;
}

label {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--navy);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fbfdff;
  padding: 0.7rem;
  font: inherit;
  color: var(--text);
}

textarea {
  resize: vertical;
  min-height: 140px;
}

.map {
  border: 1px solid var(--line);
  min-height: 290px;
  overflow: hidden;
}

.map iframe {
  width: 100%;
  min-height: 290px;
  border: 0;
}

.faq-item {
  border: 1px solid var(--line);
  background: var(--white);
}

.faq-q {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 0.9rem 1rem;
  text-align: left;
  font: inherit;
  font-weight: 700;
  background: var(--paper);
  color: var(--navy);
}

.faq-a {
  display: none;
  padding: 0.9rem 1rem;
}

.faq-item.open .faq-a {
  display: block;
}

.site-footer {
  background: #0c1d2e;
  color: #dfebf5;
  padding: 2.25rem 0;
  border-top: 1px solid #21384d;
}

.footer-grid {
  display: grid;
  gap: 1rem;
}

.small {
  font-size: 0.9rem;
  color: #c2d4e1;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 760px) {
  .header-grid {
    grid-template-columns: auto 1fr auto;
    gap: 1.2rem;
  }

  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    transform: none;
    border: 0;
    background: transparent;
  }

  .main-nav ul {
    padding: 0;
    display: flex;
    justify-content: flex-end;
    gap: 0.35rem;
  }

  .header-phone {
    display: inline-block;
  }

  .grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .side-by {
    grid-template-columns: 1.1fr 1fr;
    align-items: stretch;
  }

  .split {
    grid-template-columns: 1fr 1fr;
  }

  .strip .container {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}