body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #121212;
  color: #f1f1f1;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: #1e1e1e;
  border-bottom: 2px solid #2a2a2a;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo img {
  width: 50px;
  height: 50px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

nav a {
  color: #00bcd4;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

nav a:hover {
  color: #1de9b6;
}

.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, #1c1c1c, #2c2c2c);
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #ccc;
}

.btn {
  padding: 0.75rem 1.5rem;
  background-color: #00bcd4;
  color: #000;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
  text-decoration: none;
}

.btn:hover {
  background-color: #1de9b6;
}

section {
  padding: 3rem 2rem;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

.card {
  background-color: #1e1e1e;
  padding: 1.5rem;
  border-radius: 10px;
  width: 300px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.card h3 {
  margin-top: 0;
  color: #00bcd4;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.item {
  background-color: #2a2a2a;
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
}

form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea {
  padding: 0.75rem;
  border: none;
  border-radius: 6px;
  background-color: #2a2a2a;
  color: #fff;
}

button[type="submit"] {
  background-color: #00bcd4;
  color: #000;
  border: none;
  padding: 0.75rem;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
}

button[type="submit"]:hover {
  background-color: #1de9b6;
}

footer {
  background-color: #1e1e1e;
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  border-top: 2px solid #2a2a2a;
  color: #999;
}

.img {
  width: 100%;
  height: auto;
  border-radius: 10px;
}