:root {
  --primary: #003366;
  --secondary: #FF6600;
  --background: #F0F4F8;
  --footer-bg: #002244;
  --button: #FF6600;
  --section-bg-1: #E6F0FA;
  --section-bg-2: #FFFFFF;
  --section-bg-3: #F5F5F5;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-light: #FFFFFF;
  --font-main: 'Roboto', sans-serif;
  --font-accent: 'Montserrat', sans-serif;
  --border-radius: 4px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s ease;
}

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;700&family=Roboto:wght@400;500;700&display=swap');

body {
  font-family: var(--font-main);
  color: var(--text-primary);
  background-color: var(--background);
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-accent);
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
  margin-top: 0;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

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

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

/* Sections */
.section {
  padding: 5rem 0;
}

.section-bg-1 {
  background-color: var(--section-bg-1);
}

.section-bg-2 {
  background-color: var(--section-bg-2);
}

.section-bg-3 {
  background-color: var(--section-bg-3);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--button);
  color: var(--text-light);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: #E65C00;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--text-light);
}

/* Cards */
.card {
  background-color: var(--section-bg-2);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

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

.card-body {
  padding: 1.5rem;
}

/* Navigation */
.navbar {
  background-color: var(--primary);
  padding: 1rem 0;
}

.nav-link {
  color: var(--text-light);
  padding: 0.5rem 1rem;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--secondary);
  text-decoration: none;
}

/* Footer */
.footer {
  background-color: var(--footer-bg);
  color: var(--text-light);
  padding: 3rem 0;
}

.footer a {
  color: var(--text-light);
}

.footer a:hover {
  color: var(--secondary);
}

/* Industrial accents */
.industrial-accent {
  position: relative;
}

.industrial-accent::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--secondary);
}

/* Modern energy effects */
.energy-hover {
  transition: var(--transition);
}

.energy-hover:hover {
  box-shadow: 0 0 15px rgba(255, 102, 0, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}