/* Main layout styles */
body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

/* Button styles */
button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 24px;
    margin: 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}
button:hover {
    background-color: #0056b3;
}

/* Download button variant */
.download-btn {
    background-color: #28a745;
}
.download-btn:hover {
    background-color: #1e7e34;
}

/* Button group layout */
.button-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    margin-top: 32px;
}

.button-group button {
    width: 260px;
    max-width: 90vw;
    font-size: 1.5rem;
}

img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto;
    margin-bottom: 16px;
}

/* APK info box styles */
.apk-info-box {
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 18px 24px;
    margin: 24px auto 0 auto;
    max-width: 400px;
    font-size: 1.1rem;
    color: #222;
    text-align: left;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}
.apk-info-box.error {
    color: #b71c1c;
    background: #fff0f0;
    border-color: #f44336;
}
.changelog {
    display: inline-block;
    margin-top: 4px;
    color: #444;
    font-style: italic;
}