body {
    font-family: 'Montserrat', sans-serif;
    background: #121212;
    color: #e0e0e0;
    margin: 0;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    color: #1DB954;
}

header p {
    color: #a0a0a0;
    max-width: 700px;
    margin: 0 auto;
}

.demo-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 600px;
    margin: 0 auto;
}

.demo-link {
    background: #1e1e1e;
    border: 1px solid #2b2b2b;
    border-radius: 8px;
    padding: 15px 20px;
    text-align: center;
    text-decoration: none;
    font-size: 1.2rem;
    color: #1DB954;
    transition: background-color 0.3s, color 0.3s, transform 0.2s ease;
}

.demo-link:hover {
    background: #1DB954;
    color: #fff;
    transform: translateY(-3px);
}

.menu-link {
    display: inline-block;
    background-color: #1DB954;
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.2);
}

.menu-link:hover {
    background-color: #1ED760;
    transform: translateY(-3px);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.3);
}

footer {
    text-align: center;
    margin-top: 40px;
    color: #777;
}

footer p {
    color: #666;
}

.icon {
    margin-right: 8px;
}