body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #ffffff;
    color: #333333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #bf1b2c;
    color: #bf1b2c;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

header a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 10px;
}

header a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
}

button {
    background-color: #ffffff;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #333333;
}

input, textarea, select {
    padding: 10px;
    border: 1px solid #cccccc;
    border-radius: 8px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 15px;
    font-size: 16px;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #1e1e1e;
}

footer {
    text-align: center;
    padding: 15px;
    background-color: #f5f5f5;
    color: #555555;
    border-top: 1px solid #e0e0e0;
}

.center {
    width: 50%;
    margin-left: auto;
    margin-right: auto;
}