:root {
  --primary-bg: #000000;
  --secondary-bg: #1a1a1a;
  --accent-bg: #2d2d2d;
  --primary-text: #ffffff;
  --secondary-text: #cccccc;
  --accent-text: #888888;
  --primary-accent: #00ff88;
  --secondary-accent: #0066cc;
  --warning-accent: #ff6b35;
  --border-color: #333333;
  --hover-color: #404040;
}

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

body {
  font-family: "Inter", sans-serif;
  background-color: var(--primary-bg);
  color: var(--primary-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  column-gap: 1rem;
}

.logo img {
  width: 3rem;
}

.logo span {
  font-size: 1.125rem;
  line-height: 1;
  font-weight: 500;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--secondary-text);
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
}

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

.mobile-menu {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.mobile-menu span {
  width: 25px;
  height: 3px;
  background: var(--primary-text);
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0.8),
    rgba(26, 26, 26, 0.9)
  );
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("./images/lng_terminal_modern.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  padding: 8rem 2rem;
  z-index: 2;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.1;
  text-wrap: balance;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(
    45deg,
    var(--primary-accent),
    var(--secondary-accent)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--secondary-text);
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--accent-text);
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(
    45deg,
    var(--primary-accent),
    var(--secondary-accent)
  );
  color: var(--primary-bg);
}

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

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 255, 136, 0.3);
}

/* Sections */
.section {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--primary-text);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--secondary-text);
  text-align: center;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Project Overview */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.overview-card {
  background: var(--secondary-bg);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.overview-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 255, 136, 0.1);
}

.card-icon {
  font-size: 2.5rem;
  color: var(--primary-accent);
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-text);
}

.card-description {
  color: var(--secondary-text);
  line-height: 1.6;
}

/* Specifications */
.specs-container {
  background: var(--secondary-bg);
  border-radius: 20px;
  padding: 3rem;
  border: 1px solid var(--border-color);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.spec-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--accent-bg);
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.spec-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-accent);
  margin-bottom: 0.5rem;
}

.spec-label {
  color: var(--secondary-text);
  font-weight: 500;
}

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

.impact-card {
  background: linear-gradient(135deg, var(--secondary-bg), var(--accent-bg));
  padding: 2.5rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.impact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(
    45deg,
    var(--primary-accent),
    var(--secondary-accent)
  );
}

.impact-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.impact-economic .impact-icon {
  color: #ffd700;
}
.impact-social .impact-icon {
  color: #ff6b6b;
}
.impact-environmental .impact-icon {
  color: #4ecdc4;
}
.impact-strategic .impact-icon {
  color: #a8e6cf;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-accent);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  position: relative;
}

.timeline-content {
  background: var(--secondary-bg);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  width: 45%;
  position: relative;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: auto;
}

.timeline-date {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-accent);
  color: var(--primary-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Partners */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.partner-card {
  background: var(--secondary-bg);
  padding: 2rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: transform 0.3s ease;
}

.partner-card:hover {
  transform: translateY(-3px);
}

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

.contact-card {
  background: var(--secondary-bg);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--border-color);
  text-align: center;
}

.contact-icon {
  font-size: 2.5rem;
  color: var(--primary-accent);
  margin-bottom: 1rem;
}

.contact-name {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--primary-text);
}

.contact-email {
  color: var(--secondary-accent);
  text-decoration: none;
  font-weight: 500;
}

.contact-email:hover {
  color: var(--primary-accent);
}

/* Footer */
.footer {
  background: var(--secondary-bg);
  padding: 3rem 2rem 1rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-text {
  color: var(--accent-text);
  margin-bottom: 1rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (width <= 768px) {
  .mobile-menu {
    display: flex;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px !important;
  }

  .timeline-date {
    transform: none;
    left: 0;
    top: 0;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (width <= 1028px) {
  .nav-links {
    display: none;
  }
}

/* Image styling */
.hero-image,
.section-image {
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.gallery-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

.gallery-image:hover {
  transform: scale(1.05);
}