body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: #fff;
  text-align: center;
}

header {
  padding: 40px 20px;
}

header h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
  color: #00ffd5;
}

header p {
  font-size: 1.2rem;
  color: #e0f7fa;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
}

.card img {
  width: 35%;
  border-radius: 5px;
  margin-bottom: 5px;
}

.card h2 {
  font-size: 1.5rem;
  color: #00e5ff;
}

input[type="text"],
input[type="url"] {
  width: 40%;
  padding: 10px;
  border: none;
  border-radius: 10px;
  margin: 10px 0;
  font-size: 1rem;
}

button {
  background-color: #00bcd4;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 1rem;
  border-radius: 10px;
  cursor: pointer;
}

button:hover {
  background-color: #0097a7;
}

footer {
  padding: 20px;
  background-color: #002b36;
  font-size: 0.9rem;
  color: #b2ebf2;
}