/* Reset and base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}
body {
  background: #f2f6fb;
  color: #1a1a1a;
  line-height: 1.6;
  min-height: 100vh;
}
a {
  color: #0d47a1;
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: #ffb300;
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  padding: 60px 0;
}

/* Navigation */
header {
  background: #fff;
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 5%;
}
.nav-container h1 {
  font-weight: 700;
  font-size: 1.8rem;
  color: #0d47a1;
  letter-spacing: 2px;
  cursor: default;
  user-select: none;
}
nav a {
  font-weight: 600;
  margin-left: 24px;
  font-size: 1.1rem;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
nav a:hover,
nav a.active {
  color: #0048ff;
  border-color: #0048ff;
}

/* Hero */
.hero {
  background: linear-gradient(rgba(77, 116, 175, 0.7), rgba(13, 71, 161, 0.7)),
    url('images/hero-flight.jpg') center/cover no-repeat;
  height: 65vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  padding: 0 20px;
}
.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-shadow: 2px 3px 10px rgba(0, 0, 0, 0.7);
}
.hero p {
  font-size: 1.4rem;
  margin-bottom: 24px;
  font-weight: 500;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 1px 2px 7px rgba(0, 0, 0, 0.6);
}
.hero a {
  background: #ff0000a8;
  color: #ffffff;
  font-weight: 700;
  font-size: 1.2rem;
  padding: 14px 36px;
  border-radius: 8px;
  box-shadow: 0 6px 14px #ff590080;
  transition: background 0.3s ease;
}
.hero a:hover {
  background: rgb(78, 2, 2);
  box-shadow: 0 8px 20px rgb(69, 2, 2);
}

/* Stats section */
.stats {
  background: #fff;
  display: flex;
  justify-content: space-around;
  padding: 40px 0;
  border-radius: 10px;
  box-shadow: 0 8px 18px rgb(0 0 0 / 0.12);
  margin-top: -60px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.stats div {
  text-align: center;
}
.stats div h3 {
  font-size: 2.8rem;
  color: #0d47a1;
  margin-bottom: 8px;
  font-weight: 700;
  letter-spacing: 1.2px;
}
.stats div p {
  font-weight: 600;
  font-size: 1.1rem;
  color: #555;
}

/* Section titles */
h2.section-title {
  font-weight: 700;
  font-size: 2.4rem;
  color: #0d47a1;
  margin-bottom: 30px;
  text-align: center;
}

/* Cards grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
  gap: 28px;
  margin-top: 10px;
}
.card {
  background: #fff;
  padding: 20px;
  border-radius: 14px;
  box-shadow: 0 8px 20px rgb(0 0 0 / 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: default;
}
.card:hover {
  box-shadow: 0 14px 30px rgb(0 0 0 / 0.18);
  transform: translateY(-6px);
}
.card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 18px;
  object-fit: cover;
  height: 180px;
}
.card h4 {
  color: #0d47a1;
  font-weight: 700;
  margin-bottom: 10px;
  font-size: 1.3rem;
}
.card p {
  font-weight: 500;
  color: #555;
  font-size: 1rem;
}

/* Footer */
footer {
  background: #0d47a1;
  color: #fff;
  padding: 24px 5%;
  text-align: center;
  font-size: 0.95rem;
  margin-top: 80px;
  user-select: none;
}
footer a {
  color: #0481ff;
  font-weight: 600;
}
footer a:hover {
  color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
  }
  nav {
    margin-top: 12px;
  }
  nav a {
    margin-left: 0;
    margin-right: 18px;
    font-size: 1.05rem;
  }
  .stats {
    flex-direction: column;
    gap: 18px;
  }
}