body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 20px;
    background-color: #f4f4f9;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

#form-container, #display-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    max-width: 800px;
    margin-inline: auto;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

label { font-weight: bold; }

input {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.button-group {
    display: flex;
    gap: 10px;
}

button {
    padding: 10px 15px;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    background-color: #007bff;
    color: white;
}

button:hover { background-color: #0056b3; }

.delete-btn { background-color: #dc3545; }
.edit-btn { background-color: #ffc107; color: black; }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

th { background-color: #eee; }