body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f6f8fa;
    color: #333;
    margin: 0;
    padding: 20px;
}

h2 {
    color: #222;
}

a {
    text-decoration: none;
    color: #3498db;
}

a:hover {
    text-decoration: underline;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    margin-bottom: 30px;
}

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

th {
    background-color: #f0f0f0;
}

.btn {
    padding: 8px 14px;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    margin-right: 10px;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-info {
    background-color: #2980b9;
    color: white;
}

.btn-secondary {
    background-color: #7f8c8d;
    color: white;
}

form input[type="text"],
form input[type="url"] {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    margin-bottom: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

form button {
    padding: 10px 20px;
    font-size: 16px;
}

.container {
    max-width: 800px;
    margin: auto;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}