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

/* Body Styling */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #ffffff;
  color: #333;
  line-height: 1.6;
  padding: 0;
  margin: 0;
}

/* Navigation Bar */
nav {
  background-color: #003366;
  padding: 10px 20px;
  text-align: center;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin: 0 12px;
  font-weight: 500;
  font-size: 16px;
}

nav a:hover {
  text-decoration: underline;
}

/* Header */
header {
  background-color: #004080;
  color: #fff;
  padding: 20px 15px;
  text-align: center;
}

header h1 {
  font-size: 28px;
  margin-bottom: 5px;
}

header .phone {
  font-size: 16px;
  color: #ffcc00;
}

/* Main Content */
main {
  padding: 20px 15px;
  max-width: 960px;
  margin: auto;
}

/* Footer */
footer {
  background-color: #f2f2f2;
  color: #333;
  text-align: center;
  padding: 15px;
  font-size: 14px;
}

/* Responsive Mobile Optimization */
@media (max-width: 768px) {
  nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 10px;
  }

  nav a {
    margin: 6px 8px;
    font-size: 15px;
  }

  header h1 {
    font-size: 22px;
  }

  .phone {
    font-size: 14px;
  }

  main {
    padding: 15px 10px;
  }
}