:root {
  --primary-color: #003366; /* Deep Corporate Blue */
  --secondary-color: #DAA520; /* Golden Rod - Accent */
  --text-color: #333333;
  --bg-color: #ffffff;
  --light-bg: #f4f7f6;
  --dark-bg: #1a1a1a;
  --white: #ffffff;
  --transition-speed: 0.3s;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-padding {
  padding: 80px 0;
}

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

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--secondary-color);
  margin: 10px auto 0;
}

.section-title p {
  color: #666;
  max-width: 700px;
  margin: 0 auto;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background: var(--primary-color);
  color: var(--white);
  border-radius: 4px;
  font-weight: 600;
  border: 2px solid var(--primary-color);
}

.btn:hover {
  background: transparent;
  color: var(--primary-color);
}

.btn-secondary {
  background: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-secondary:hover {
  background: transparent;
  color: var(--secondary-color);
}

/* Header */
header {
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-weight: 500;
  color: #333;
}

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

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Section 1: Hero */
#hero {
  height: 100vh;
  background: linear-gradient(rgba(0,51,102,0.7), rgba(0,51,102,0.7)), url('hero-bg.png');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--white);
  margin-top: 0; /* Override margin if header is static, but header is fixed */
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Section 2: About Us */
#about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-img img {
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Section 3: Vision & Mission */
#vision-mission {
  background: var(--light-bg);
}

.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.vm-card {
  background: var(--white);
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s;
}

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

.vm-icon {
  font-size: 3rem;
  color: var(--secondary-color);
  margin-bottom: 20px;
}

/* Section 4: Core Values */
#core-values {
  background: var(--primary-color);
  color: var(--white);
}

#core-values .section-title h2 {
  color: var(--white);
}

#core-values .section-title p {
  color: rgba(255,255,255,0.8);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.value-item {
  text-align: center;
  padding: 20px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
}

/* Section 5: Key Sectors */
#sectors {
  background: var(--white);
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.sector-card {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  height: 300px;
}

.sector-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.sector-card:hover img {
  transform: scale(1.1);
}

.sector-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: var(--white);
}

/* Section 6: Featured Projects */
#projects {
  background: var(--light-bg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.project-item {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.project-info {
  padding: 20px;
}

/* Section 7: Statistics */
#stats {
  background: url('https://images.unsplash.com/photo-1556761175-5973dc0f32e7?ixlib=rb-1.2.1&auto=format&fit=crop&w=1932&q=80') fixed center;
  background-size: cover;
  position: relative;
  color: var(--white);
}

#stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,51,102,0.85);
}

.stats-container {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: bold;
  color: var(--secondary-color);
  margin-bottom: 10px;
}

/* Section 8: Leadership */
#leadership {
  background: var(--white);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.team-member {
  text-align: center;
}

.team-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 20px;
  border: 4px solid var(--light-bg);
}

.team-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Section 9: Partners */
#partners {
  background: var(--light-bg);
}

.partners-logos {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
  opacity: 0.7;
}

.partners-logos img {
  max-height: 60px;
  filter: grayscale(100%);
  transition: 0.3s;
}

.partners-logos img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* Section 10: News */
#news {
  background: var(--white);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: var(--white);
  border: 1px solid #eee;
  border-radius: 8px;
  overflow: hidden;
  transition: 0.3s;
}

.news-card:hover {
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.news-content {
  padding: 20px;
}

.news-date {
  color: var(--secondary-color);
  font-size: 0.9rem;
  margin-bottom: 10px;
  display: block;
}

/* Section 11: Recruitment */
#recruitment {
  background: linear-gradient(135deg, var(--primary-color), #004080);
  color: var(--white);
  text-align: center;
}

#recruitment .section-title h2 {
  color: var(--white);
}

/* Section 12: Contact */
#contact {
  background: var(--white);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.contact-form button {
  width: 100%;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: var(--white);
  margin-bottom: 20px;
}

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

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

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #333;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-content h1 { font-size: 2.5rem; }
  .about-grid, .vm-grid, .contact-container { grid-template-columns: 1fr; }
  .values-grid, .stats-container { grid-template-columns: repeat(2, 1fr); }
  .sectors-grid, .team-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .sectors-grid, .team-grid, .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}