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

body {
  font-family: 'Arial', sans-serif;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
}

a {
  color: #333;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* Header Styles */
header {
  background-color: #ffffff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, .1);
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: -5px 5px;
}

.header-logo-container a img {
  width: auto;
  height: 120px;
}

nav ul {
  list-style-type: none;
  background-color: #fff;
  text-align: center;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
}

nav ul li {
  display: inline-block;
  margin: 0 15px;
}

nav ul li a {
  padding: 15px 20px;
  display: inline-block;
  color: #333;
  text-transform: uppercase;
  font-weight: bold;
}

nav ul li a:hover,
nav ul li a:focus {
  color: #007bff;
  background-color: transparent;
}

/* Main Content Styles */
main {
  padding: 20px;
}

/* Utility Classes */
.container {
  width: 80%;
  margin: auto;
  overflow: hidden;
}

/* Responsive Design */
@media (max-width: 768px) {
  nav ul li {
    display: block;
    margin: 0;
  }

  .container {
    width: 95%;
  }
}