body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #0b0c10;
  color: #c5c6c7;
}

nav {
  background-color: #1f2833;
  padding: 10px;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
}

nav ul li {
  margin-right: 15px;
}

nav ul li a {
  color: #66fcf1;
  text-decoration: none;
  font-weight: bold;
}

nav ul li a:hover {
  color: #45a29e;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

section {
  margin-bottom: 40px;
}

h1, h2, h3 {
  color: #66fcf1;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.grid-item {
  background-color: #1f2833;
  border-radius: 10px;
  padding: 20px;
  flex: 1 1 calc(33.333% - 40px);
  box-sizing: border-box;
}

.grid-item a {
  text-decoration: none;
  color: #66fcf1;
}

.grid-item a h3 {
  margin-top: 0;
}

@media (max-width: 768px) {
  .grid-item {
    flex: 1 1 calc(50% - 40px);
  }
}

@media (max-width: 480px) {
  .grid-item {
    flex: 1 1 100%;
  }
}

iframe {
  width: 100%;
  min-height: 400px;
  border: none;
  border-radius: 10px;
}

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
}