/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #2d3748;
  background-color: #ffffff;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #3a9fbf;
  color: #ffffff;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.75rem;
}

.nav-link {
  color: #e6e600;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
  border-bottom: 2px solid #74c69d;
  padding-bottom: 4px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Top Artwork Banner */
.top-artwork {
  margin-top: 64px;
  padding: 2rem 0 0;
  background: linear-gradient(180deg, #3a9fbf 0%, #add8e6 100%);
}

.header-banner-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  border: 2px solid rgba(255, 255, 255, 0.15);
}

/* Hero / Welcome Section */
.hero {
  padding: 3.5rem 0 5.5rem;
  background: linear-gradient(180deg, #add8e6 0%, #add8e6 100%);
  color: #ffffff;
  text-align: center;
}

.hero-content h1 {
  font-size: 2.75rem;
  margin-bottom: 1.25rem;
}

.hero-content p {
  font-size: 1.2rem;
  max-width: 720px;
  margin: 0 auto 2rem;
  color: #e9f5ed;
}

.btn {
  display: inline-block;
  background-color: #3a9fbf;
  color: #ffffff;
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.btn:hover {
  background-color: #3a5dbf;
}

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

.bg-light {
  background-color: #f8f9fa;
}

.section-title {
  font-size: 2rem;
  color: #000000;
  text-align: center;
  margin-bottom: 2.5rem;
}

/* Info Cards */
.info-card {
  max-width: 700px;
  margin: 0 auto;
  background: #ffffff;
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  text-align: center;
  font-size: 1.15rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.email-text {
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

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

.fleet-card {
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
}

.fleet-card:hover {
  transform: translateY(-4px);
}

.fleet-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  background-color: #edf2f7;
}

.fleet-card-body {
  padding: 1.5rem;
  text-align: center;
}

.fleet-card-body h3 {
  font-size: 1.25rem;
  color: #add8e6;
  margin-bottom: 0.4rem;
}

.tail-number {
  color: #4a5568;
  font-size: 0.95rem;
  font-weight: 500;
}

/* Footer */
.footer {
  background-color: #72bcd4;
  color: #d8f3dc;
  text-align: center;
  padding: 2rem 0;
  font-size: 0.95rem;
}

/* Responsive Navigation */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background-color: #add8e6;
    padding: 1rem 1.5rem;
    gap: 1rem;
  }

  .nav-links.open {
    display: flex;
  }
}