body {
  font-family: "Poppins", sans-serif;
  background: #f9fafc;
  color: #333;
  text-align: center;
  padding: 20px;
}

header h1 {
  color: #6c63ff;
  margin-bottom: 30px;
}

section {
  background: white;
  padding: 20px;
  margin: 20px auto;
  max-width: 600px;
  border-radius: 15px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

input {
  padding: 10px;
  margin: 10px 5px 10px 0;
  width: calc(50% - 10px);
  border-radius: 25px;
  border: 1px solid #ccc;
}

button {
  padding: 10px 20px;
  border-radius: 25px;
  border: none;
  background: #6c63ff;
  color: white;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #ffcc70;
  color: #333;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

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

th {
  background: #6c63ff;
  color: white;
}

.status-available {
  color: green;
  font-weight: bold;
}

.status-issued {
  color: red;
  font-weight: bold;
}

.action-btn {
  padding: 5px 10px;
  border: none;
  border-radius: 15px;
  cursor: pointer;
}

.action-issue { background: #ffcc70; }
.action-return { background: #6c63ff; color: white; }
.action-delete { background: #ff5e5e; color: white; }