:root {
  --blue-corporate: #0056b3;
  --blue-dark: #003d82;
  --text-dark: #333333;
  --text-light: #666666;
  --bg-light: #f8f9fa;
  --white: #ffffff;
  --border-color: #e5e5e5;
  --font-family: 'Open Sans', 'Roboto', 'Helvetica Neue', sans-serif;
}

body {
  font-family: var(--font-family);
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--bg-light);
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--blue-dark);
  margin-bottom: 15px;
  font-weight: 700;
}

a {
  color: var(--blue-corporate);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--blue-dark);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header */
header {
  background-color: var(--white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 15px 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-container img {
  height: 50px;
}

.logo-text {
  font-size: 24px;
  font-weight: bold;
  color: var(--blue-dark);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

nav ul li a {
  font-weight: 600;
  color: var(--text-dark);
  text-transform: uppercase;
  font-size: 14px;
  padding: 5px 10px;
}

nav ul li a:hover {
  color: var(--blue-corporate);
}

.contact-btn {
  background-color: var(--blue-corporate);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 4px;
  font-weight: bold;
}

.contact-btn:hover {
  background-color: var(--blue-dark);
  color: var(--white);
}

/* Hero Section */
.hero {
  position: relative;
  background: url('../../shared-img/v4-geo2e2_mining_1780785549110.png') no-repeat center center/cover;
  padding: 120px 0;
  text-align: center;
  color: var(--white);
}

.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--white);
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 20px;
  max-width: 800px;
  margin: 0 auto 30px;
}

/* Generic Section */
.section {
  padding: 80px 0;
  background-color: var(--white);
}

.section-alt {
  background-color: var(--bg-light);
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 32px;
}

.section-subtitle {
  text-align: center;
  color: var(--blue-corporate);
  text-transform: uppercase;
  font-weight: bold;
  margin-bottom: 10px;
  display: block;
}

/* Grid & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  align-items: start;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.service-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.service-content h3 {
  font-size: 20px;
  margin-bottom: 15px;
}

.service-content p {
  color: var(--text-light);
  margin-bottom: 20px;
  flex-grow: 1;
}

.read-more {
  font-weight: bold;
  text-transform: uppercase;
  font-size: 14px;
}

/* Content blocks */
.content-block {
  margin-bottom: 30px;
}

.content-block h3 {
  border-left: 4px solid var(--blue-corporate);
  padding-left: 15px;
}

/* Footer */
footer {
  background-color: var(--blue-dark);
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--white);
  border-bottom: 2px solid var(--blue-corporate);
  padding-bottom: 10px;
  margin-bottom: 20px;
  display: inline-block;
}

.footer-col p, .footer-col ul {
  color: #cccccc;
  font-size: 14px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #cccccc;
}

.footer-col ul li a:hover {
  color: var(--white);
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  color: #999999;
  font-size: 14px;
}

/* Utilities */
.text-center { text-align: center; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mt-40 { margin-top: 40px; }

/* Responsive */
@media (max-width: 992px) {
  .grid-3, .grid-2, .footer-grid {
    grid-template-columns: 1fr;
  }
  .header-container {
    flex-direction: column;
    gap: 15px;
  }
}