:root {
  --slate: #102a43;
  --navy: #0b2239;
  --teal: #b68a57;
  --copper: #8f6238;
  --orange: #ffffff;
  --gray: #55514b;
  --white: #ffffff;
  --cloud: #f3eee6;
  --ink: #2d2a27;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(31, 58, 95, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Open Sans", sans-serif;
  color: var(--gray);
  line-height: 1.65;
  background: linear-gradient(180deg, #ffffff 0%, #f7f2ea 100%);
}

h1,
h2,
h3 {
  margin: 0 0 0.8rem;
  color: var(--slate);
  font-family: "Montserrat", sans-serif;
  letter-spacing: 0.01em;
}

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(143, 98, 56, 0.2);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.logo {
  font-family: "Montserrat", sans-serif;
  font-size: 1.28rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--navy);
}

.site-nav {
  display: flex;
  gap: 1.3rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.site-nav a {
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
  transition: border-color 0.2s ease;
}

.site-nav a:hover {
  border-color: var(--orange);
}

.menu-toggle {
  display: none;
  border: 0;
  background: var(--navy);
  color: var(--white);
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  font-family: "Montserrat", sans-serif;
}

.hero,
.inner-hero {
  position: relative;
  display: grid;
  align-items: center;
  isolation: isolate;
}

.hero {
  min-height: 76vh;
  background: linear-gradient(135deg, rgba(8, 24, 40, 0.92), rgba(16, 42, 67, 0.76)),
    url("https://images.unsplash.com/photo-1472396961693-142e6e269027?auto=format&fit=crop&w=1800&q=80") center/cover no-repeat;
}

.inner-hero {
  min-height: 42vh;
  background: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1465447142348-e9952c393450?auto=format&fit=crop&w=1700&q=80") center/cover no-repeat;
}

.tech-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1489515217757-5fd1be406fef?auto=format&fit=crop&w=1700&q=80");
}

.project-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1504309092620-4d0ec726efa4?auto=format&fit=crop&w=1700&q=80");
}

.about-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1460472178825-e5240623afd5?auto=format&fit=crop&w=1700&q=80");
}

.contact-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1700&q=80");
}

.survey-bg,
.planning-bg,
.infra-bg,
.geo-bg {
  min-height: 32vh;
}

.survey-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1513828742140-ccaa28f3eda0?auto=format&fit=crop&w=1700&q=80");
}

.planning-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1700&q=80");
}

.infra-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1438109491414-7198515b166b?auto=format&fit=crop&w=1700&q=80");
}

.geo-bg {
  background-image: linear-gradient(120deg, rgba(8, 24, 40, 0.9), rgba(16, 42, 67, 0.72)),
    url("https://images.unsplash.com/photo-1446776811953-b23d57bd21aa?auto=format&fit=crop&w=1700&q=80");
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(182, 138, 87, 0.25), transparent 42%);
}

.hero-content,
.inner-hero .container {
  position: relative;
  color: var(--white);
  padding: 4.5rem 0;
}

.eyebrow {
  font-family: "Montserrat", sans-serif;
  color: #ead8bf;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: 1rem;
  font-size: 0.8rem;
}

.hero h1,
.inner-hero h1 {
  font-size: clamp(2rem, 5vw, 3.35rem);
  max-width: 13.2ch;
  color: var(--white);
}

.inner-hero p,
.hero-subheadline {
  max-width: 62ch;
  font-size: 1.08rem;
  margin-bottom: 1.8rem;
  color: #e8f0f7;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.22rem;
  border-radius: 9px;
  border: 0;
  cursor: pointer;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--slate);
  background: var(--orange);
  box-shadow: 0 10px 24px rgba(255, 255, 255, 0.38);
}

.btn-secondary {
  color: var(--slate);
  background: #ffffff;
  border: 1px solid rgba(31, 58, 95, 0.15);
}

.text-link {
  color: var(--slate);
  font-weight: 700;
  font-family: "Montserrat", sans-serif;
  font-size: 0.9rem;
}

.section {
  padding: clamp(3rem, 6vw, 5.4rem) 0;
}

.section-alt {
  background: var(--cloud);
}

.narrow {
  max-width: 850px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  margin-bottom: 1.4rem;
}

.service-grid,
.three-col,
.project-grid,
.two-col {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stack-cards {
  display: grid;
  gap: 1rem;
}

.card,
.feature {
  background: var(--white);
  border: 1px solid rgba(16, 42, 67, 0.12);
  border-radius: var(--radius);
  padding: 1.3rem 1.2rem;
  box-shadow: var(--shadow);
}

.card h2 {
  font-size: 1.3rem;
}

.card h3,
.feature h3 {
  font-size: 1.15rem;
}

.card ul {
  padding-left: 1rem;
  margin: 0 0 0.8rem;
}

.image-slab {
  padding-top: 0;
}

.image-slab-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.image-slab-grid img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.pill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.pill-grid span {
  display: block;
  padding: 0.8rem 0.9rem;
  background: #fff;
  color: var(--ink);
  border-left: 4px solid var(--orange);
  border-radius: 8px;
  box-shadow: 0 10px 22px rgba(55, 43, 31, 0.1);
}

.process-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-grid li {
  background: var(--white);
  border: 1px solid rgba(31, 58, 95, 0.12);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 14px 28px rgba(31, 58, 95, 0.09);
}

.process-grid strong {
  display: block;
  color: var(--slate);
  font-family: "Montserrat", sans-serif;
  margin-bottom: 0.3rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.2rem;
}

.contact-form {
  display: grid;
  gap: 0.5rem;
}

.contact-form label {
  font-weight: 600;
  color: var(--ink);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(16, 42, 67, 0.24);
  border-radius: 8px;
  padding: 0.65rem 0.7rem;
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.map-frame {
  width: 100%;
  min-height: 300px;
  border: 0;
  border-radius: 10px;
}

.cta {
  background: linear-gradient(120deg, #0b2239, #102a43 48%, #ffffff);
  color: #e6edf4;
}

.cta h2 {
  color: #ffffff;
}

.cta-wrap {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
}

.cta a {
  color: #d8f8f3;
}

.site-footer {
  background: #0b2239;
  color: #d6c2a5;
  padding: 1.1rem 0;
  font-size: 0.9rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 980px) {
  .service-grid,
  .three-col,
  .pill-grid,
  .process-grid,
  .project-grid,
  .two-col,
  .image-slab-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    right: 4vw;
    left: 4vw;
    display: none;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.8rem;
    background: #fff;
    border: 1px solid rgba(143, 98, 56, 0.22);
    border-radius: 12px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .service-grid,
  .three-col,
  .pill-grid,
  .process-grid,
  .project-grid,
  .two-col,
  .image-slab-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .cta-wrap,
  .footer-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}