/* Global Styles */
:root {
  --primary-color: #c9a227;
  --secondary-color: #1a1a1a;
  --text-color: #ffffff;
  --sidebar-width: 280px;
  --transition-speed: 0.3s;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #121212;
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--text-color);
  transition: color var(--transition-speed);
}

a:hover {
  color: var(--primary-color);
}

.container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--secondary-color);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  padding: 2rem 1rem;
  transition: transform var(--transition-speed);
  z-index: 1000;
}

.logo-container {
  margin-bottom: 3rem;
  padding: 0 1rem;
}

.logo {
  color: var(--primary-color);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.logo-subtitle {
  color: var(--primary-color);
  font-size: 1.5rem;
  font-weight: 400;
  opacity: 0.8;
}

.nav-menu {
  list-style: none;
}

.nav-item {
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 1rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 1.2rem;
  color: var(--text-color);
  transition: color var(--transition-speed);
}

.nav-link:hover {
  color: var(--primary-color);
}

.dropdown {
  position: relative;
}

.dropdown-content {
  display: none;
  padding-left: 2rem;
  margin-top: 0.5rem;
}

.dropdown.active .dropdown-content {
  display: block;
}

.dropdown-icon {
  float: right;
  transition: transform var(--transition-speed);
}

.dropdown.active .dropdown-icon {
  transform: rotate(180deg);
}

/* Main Content Styles */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 2rem;
  transition: margin-left var(--transition-speed);
}

.hero {
  height: 60vh;
  background-image: url('../images/drilling-rig.png');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 3rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 2.5rem;
  color: var(--text-color);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.section {
  margin-bottom: 4rem;
}

.section-title {
  color: var(--primary-color);
  font-size: 2rem;
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background-color: var(--primary-color);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--secondary-color);
  border-radius: 8px;
  overflow: hidden;
  transition: transform var(--transition-speed);
}

.card:hover {
  transform: translateY(-10px);
}

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

.card-content {
  padding: 1.5rem;
}

.card-title {
  color: var(--primary-color);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: #000;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  transition: background-color var(--transition-speed);
  margin-top: 1rem;
}

.btn:hover {
  background-color: #e0b73b;
  color: #000;
}

/* Contact Form */
.contact-form {
  background-color: var(--secondary-color);
  padding: 2rem;
  border-radius: 8px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #333;
  background-color: #222;
  color: var(--text-color);
  border-radius: 4px;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Footer */
.footer {
  background-color: var(--secondary-color);
  padding: 2rem;
  text-align: center;
  margin-top: 4rem;
}

.social-links {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #333;
  color: var(--text-color);
  margin: 0 0.5rem;
  transition: background-color var(--transition-speed);
}

.social-link:hover {
  background-color: var(--primary-color);
  color: #000;
}

/* Mobile Navigation */
.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 2000;
  background-color: var(--primary-color);
  color: #000;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .hero-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .grid {
    grid-template-columns: 1fr;
  }
  
  .hero {
    height: 40vh;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.5rem;
  }
  
  .section {
    margin-bottom: 2rem;
  }
}