:root {
  --primary-color: #004e92;
  --secondary-color: #000428;
  --accent-color: #ffcc00;
  --light-bg: #f4f6fa;
  --dark-bg: #121212;
  --dark-text: #f4f4f4;
  --light-text: #333;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  background-color: var(--light-bg);
  color: var(--light-text);
  transition: background-color 0.3s, color 0.3s;
}

.dark-mode {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}

header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding-bottom: 60px;
}

nav {
  display: flex;
  justify-content: space-between;
  padding: 20px 10%;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: white;
  transition: color 0.3s;
}

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

.menu-toggle {
  display: none;
  font-size: 2rem;
  cursor: pointer;
  color: white;
}

.hero {
  text-align: center;
  padding: 100px 20px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.hero h1 span {
  color: var(--accent-color);
}

.btn {
  background: var(--accent-color);
  color: #000;
  padding: 10px 25px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.section {
  padding: 60px 10%;
}

.section.light {
  background-color: #fff;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}

.card {
  background: var(--primary-color);
  color: white;
  padding: 20px;
  border-radius: 8px;
  flex: 1;
  min-width: 250px;
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 500px;
}

input, textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  padding: 10px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: var(--secondary-color);
}

footer {
  text-align: center;
  padding: 20px;
  background-color: var(--secondary-color);
  color: white;
}

/* Mobile Styles */
@media screen and (max-width: 768px) {
  .nav-links {
    flex-direction: column;
    background-color: var(--primary-color);
    position: absolute;
    top: 60px;
    right: 0;
    width: 200px;
    display: none;
    padding: 20px;
    z-index: 10;
  }

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

  .menu-toggle {
    display: block;
  }
}