body {
    font-family: sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #333;
    color: #fff;
    padding-top: calc(1rem + env(safe-area-inset-top, 0px));
    padding-right: env(safe-area-inset-right, 0px);
    padding-bottom: 1rem;
    padding-left: env(safe-area-inset-left, 0px);
    text-align: center;
}

header h1 a {
    color: #fff;
    text-decoration: none;
}

header .subtitle {
    color: #ccc;
    font-size: 0.9rem;
    margin-top: -10px;
    margin-bottom: 10px;
}

nav ul {
    padding: 0;
    list-style: none;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

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

main {
    padding: 20px;
    margin: 0 auto;
    max-width: 800px;
    flex-grow: 1;
}

footer {
    text-align: center;
    padding-top: 20px;
    padding-right: calc(20px + env(safe-area-inset-right, 0px));
    padding-bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    padding-left: calc(20px + env(safe-area-inset-left, 0px));
    background-color: #333;
    color: #fff;
}

.downloads {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.downloads h5 {
    margin-top: 15px;
    margin-bottom: 5px;
    font-weight: bold;
    border-bottom: 1px solid #ccc;
    padding-bottom: 5px;
}

.downloads a {
    display: block;
    padding: 10px 15px;
    background-color: #007bff;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    margin-top: 5px;
}

.downloads a:hover,
.downloads a:focus {
    background-color: #0056b3;
}

.downloads a:active {
    background-color: #004085;
}

.screenshot {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}