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

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  color: #333;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #2c3e50;
  color: #fff;
  padding: 15px 30px;
}

header .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: bold;
}

header .logo img {
  height: 40px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  font-size: 15px;
}

nav ul li a:hover {
  color: #f1c40f;
}

main {
  padding: 30px;
  min-height: 70vh;
}

footer {
  text-align: center;
  background-color: #2c3e50;
  color: #fff;
  padding: 15px;
}

.card {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
  margin-bottom: 20px;
}

h1 {
  margin-bottom: 15px;
}

form label {
  display: block;
  margin-top: 12px;
  margin-bottom: 5px;
  font-weight: bold;
}

form input,
form select {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

form button {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #2c3e50;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

form button:hover {
  background-color: #1a252f;
}

.error {
  color: #e74c3c;
  font-size: 14px;
  margin-top: 5px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

table th,
table td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: left;
}

table th {
  background-color: #2c3e50;
  color: #fff;
}

.link-daftar {
  display: inline-block;
  margin-top: 15px;
}

/* Responsive */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 10px;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  main {
    padding: 15px;
  }
}