/* Basic reset */
* {
  margin: 0; padding: 0; box-sizing: border-box;
}
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f9f9f9; color: #333; line-height: 1.6;
}

/* Hero slider */
.hero-slider {
  position: relative;
  height: 100vh;
  overflow: hidden;
}
.slides {
  position: relative;
  height: 100%;
}
.slide {
  position: absolute;
  width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}
.slide.active {
  opacity: 1;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 50, 0.5);
  z-index: 2;
}

.hero-content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  text-align: center;
  z-index: 3;
}
.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 1px 1px 5px #000;
}
.hero-content p {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  text-shadow: 1px 1px 4px #000;
}
.btn-primary {
  background: #ffcc00;
  color: #003366;
  padding: 0.75em 2em;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
  box-shadow: 1px 1px 5px #333;
  transition: background 0.3s ease;
}
.btn-primary:hover {
  background: #e6b800;
}

/* Slider navigation dots */
.slider-nav {
  position: absolute;
  bottom: 30px;
  width: 100%;
  text-align: center;
  z-index: 4;
}
.slider-nav .dot {
  display: inline-block;
  width: 14px; height: 14px;
  margin: 0 6px;
  background: #ccc;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease;
}
.slider-nav .dot.active {
  background: #ffcc00;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: center;
  background: #003366;
  padding: 1em;
}
.navbar a {
  color: white;
  margin: 0 15px;
  font-weight: bold;
  text-decoration: none;
  font-size: 1.1rem;
}
.navbar a.active,
.navbar a:hover {
  color: #ffcc00;
}

/* Section styling */
.section {
  max-width: 900px;
  margin: 3em auto;
  padding: 0 1em;
  text-align: center;
}
.section h2 {
  margin-bottom: 1em;
  color: #003366;
  font-size: 2rem;
}
.section p {
  font-size: 1.1rem;
  color: #444;
}

/* Footer */
footer {
  background: #003366;
  color: white;
  text-align: center;
  padding: 1.5em 0;
  margin-top: 3em;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  .hero-content p {
    font-size: 1.1rem;
  }
  .navbar {
    flex-wrap: wrap;
  }
  .navbar a {
    margin: 0.5em;
  }
}