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

body {
  background-color: #ffffff;
  font-family: Arial, sans-serif;
  display: flex;
  height: 100vh;
}

/* Left Menu */
nav {
  width: 200px;
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.site-title {
  font-family: Arial, sans-serif;
  font-size: 14px;
  font-weight: bold;
  color: #000000;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

nav a {
  font-family: Arial, sans-serif;
  font-size: 16px;
  color: #000000;
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: opacity 0.2s;
}

nav a:hover {
  opacity: 0.5;
}

/* Right Content Area */
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.black-rectangle {
  width: 480px;
  height: 300px;
  background-color: #ffffff;
  border: 2px solid #000000;
}