* {
    box-sizing: border-box;
}

body, header, footer, .marquee-text, footer p {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: stretch; 
    flex-direction: column;
    min-height: 100vh;
    background-color: #ffffff;
    color: #333333;
}

header {
    background-color: #fafafa;
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

header h1 {
    margin: 0;
    font-size: 1.8em;
}

main {
    flex: 1;
    padding: 40px 20px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

audio {
    width: 100%;
    max-width: 400px;
    margin-bottom: 30px;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 30px;
}

footer {
    background-color: #f8f8f8; 
    padding: 15px;
    text-align: center;
    color: #666; 
    font-size: 0.9em;
    border-top: 1px solid #eee;
}.btn-blue-purple {
            display: inline-block;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: bold;
            color: #ffffff;
            background: linear-gradient(135deg, #4f46e5, #9333ea);
            border: none;
            border-radius: 50px;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
        }

        .btn-blue-purple:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(147, 51, 234, 0.6);
            background: linear-gradient(135deg, #6366f1, #a855f7);
        }

        .btn-blue-purple:active {
            transform: translateY(1px);
            box-shadow: 0 2px 10px rgba(79, 70, 229, 0.4);
            background: linear-gradient(135deg, #4338ca, #7e22ce);
        }
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #ffffff;
    }
    header {
        background-color: #1e1e1e;
        border-bottom-color: #333;
    }
    footer {
        background-color: #1e1e1e;
        border-top-color: #333;
        color: #888888;
    }
    .marquee-text {
        color: #b0b0b0;
    }
    .btn-blue-purple{
                background: linear-gradient(135deg, #4338ca, #7e22ce);
                box-shadow: 0 4px 15px rgba(147, 51, 234, 0.3);
    }

    .btn-blue-purple:hover {
                background: linear-gradient(135deg, #4f46e5, #9333ea);
                box-shadow: 0 6px 25px rgba(147, 51, 234, 0.5);
    }

    .btn-blue-purple:active {
                background: linear-gradient(135deg, #3730a3, #6b21a8);
                box-shadow: 0 2px 10px rgba(147, 51, 234, 0.3);
    }

}