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

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

header {
  background: #2c3e50;
  color: white;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

main {
  padding: 2rem;
}

section {
  margin-bottom: 3rem;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.card {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  flex: 1 1 300px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea {
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

button {
  background-color: #3498db;
  color: white;
  border: none;
  padding: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}

button:hover {
  background-color: #2980b9;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #2c3e50;
  color: white;
  margin-top: 2rem;
}