body {
    font-family: Arial, sans-serif;
    background-color: #f4f7f6;
    margin: 0;
    padding: 0;
}

header {
    background-color: #28a745; /* Green Theme */
    color: white;
    padding: 30px 20px;
    text-align: center;
    position: relative;
}

.back-link {
    position: absolute;
    left: 20px;
    top: 20px;
    color: white;
    text-decoration: none;
    font-size: 14px;
    border: 1px solid white;
    padding: 4px 10px;
    border-radius: 4px;
    transition: 0.3s;
}

.back-link:hover {
    background-color: white;
    color: #28a745;
}

main {
    max-width: 700px;
    margin: 20px auto;
    padding: 0 10px;
}

section {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

h2 {
    margin-top: 0;
    font-size: 20px;
    color: #333;
}

label {
    display: block;
    font-weight: bold;
    margin: 10px 0 5px;
}

input, select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    border: none;
    border-radius: 4px;
    background-color: #ccc;
    color: white;
    cursor: not-allowed;
    font-size: 14px;
}

button:enabled {
    background-color: #28a745;
    cursor: pointer;
}

button:enabled:hover {
    background-color: #218838;
}

.table-container {
    margin-top: 15px;
    border: 1px solid #ddd;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background-color: #28a745;
    color: white;
    text-align: left;
    padding: 12px 10px;
}

td {
    padding: 10px;
    border-bottom: 1px solid #ddd;
    font-size: 14px;
}

/* Action Buttons */
.edit-btn, .delete-btn {
    padding: 5px 8px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    margin-right: 4px;
    color: white;
}

.edit-btn { background-color: #ffc107; color: #000; }
.delete-btn { background-color: #dc3545; }

.edit-btn:hover { background-color: #e0a800; }
.delete-btn:hover { background-color: #c82333; }

.error {
    color: red;
    font-size: 12px;
    display: none;
}