body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.header {
    background-color: #333;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

.nav {
    background-color: #eee;
    display: flex;
    justify-content: space-around;
    padding: 1rem;
}

.nav a {
    color: #333;
    text-decoration: none;
}

.nav a:hover {
    color: #000;
}

.main {
    display: flex;
    flex-wrap: wrap;
    margin: 0 auto;
    max-width: 1200px;
    padding: 2rem;
}

.home, .about, .downloads {
    background-color: #f4f4f4;
    border: 1px solid #ddd;
    flex: 1 0 300px;
    margin: 1rem;
    padding: 1rem;
}

.home h2, .about h2, .downloads h2 {
    margin-top: 0;
}

.downloads button {
    display: block;
    background-color: #333;
    color: #fff;
    padding: 0.5rem;
    text-decoration: none;
    text-align: center;
    margin-top: 1rem;
}

.downloads button:hover {
    background-color: #555;
}

.footer {
    background-color: #333;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
}

.close {
    color: #aaaaaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:focus, .close:hover {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    text-align: center;
    margin-bottom: 20px;
    margin-top: 0;
}

.modal-body {
    margin-bottom: 20px;
}

input[type="password"] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    box-sizing: border-box;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    width: 100%;
}

button:hover {
    opacity: 0.8;
}