body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
    background: #fff;
    margin-top: 30px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    color: #444;
}

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

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 12px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

.btn {
    display: inline-block;
    padding: 8px 12px;
    margin: 2px;
    text-decoration: none;
    color: #fff;
    border-radius: 4px;
    text-align: center;
}

.btn-primary { background-color: #007bff; }
.btn-warning { background-color: #ffc107; }
.btn-danger { background-color: #dc3545; }
.btn-info { background-color: #17a2b8; }

/* Form styling */
input[type="text"], input[type="number"], textarea {
    width: 100%;
    padding: 8px;
    margin: 10px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

textarea {
    height: 100px;
}

button[type="submit"] {
    width: auto;
    padding: 10px 18px;
    border: none;
    cursor: pointer;
}