* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: #f2f4f8;
  color: #333;
  padding: 20px;
}

header {
  text-align: center;
  background: #0066cc;
  color: #fff;
  padding: 30px 10px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.event-details, .registration-form {
  background: #fff;
  padding: 25px;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.event-details h2,
.registration-form h2 {
  margin-bottom: 15px;
  color: #0066cc;
}

.event-details ul {
  list-style: none;
  padding-left: 0;
}

.event-details li {
  margin-bottom: 10px;
  font-size: 1rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

form input, form textarea {
  padding: 12px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  transition: 0.3s;
}

form input:focus, form textarea:focus {
  outline: none;
  border-color: #0066cc;
}

button {
  background: #0066cc;
  color: #fff;
  border: none;
  padding: 12px;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #004da1;
}

.hidden {
  display: none;
}

#successMsg {
  color: green;
  margin-top: 10px;
}

footer {
  text-align: center;
  font-size: 0.9rem;
  margin-top: 30px;
  color: #666;
}