body {
    display: flex;
    justify-content: center;
    background-color: #111;
    overflow-x: hidden;
    background-size: cover;
    background-position: top;
    background-repeat: no-repeat;
    background-attachment: scroll;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    margin-top: 50px;
    height: 100%;
    width: 1100px;
    gap: 50px;
}

.header {
    width: 100%;
    height: auto;
}

.header h1 {
    text-align: center;
    font-size: 4.5rem;
    font-weight: 500;
    color: #fff;
    margin: 0;
}

.header p {
    text-align: center;
    font-size: 1.3rem;
    font-weight: 400;
    color: #777;
    margin: 0;
    margin-top: 10px;
}

.song-card-container {
    width: 100%;
    height: auto;
    display: flex;
    gap: 30px;

    justify-content: center;
    flex-wrap: wrap;
}

.song-card-holder {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1 1 305px; 
    max-width: 305px;
    border-radius: 50px;
    padding: 20px;
    background: rgba(81,81,81,0.5);
    backdrop-filter: blur(10px);
    transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.song-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 22px;
    border-radius: 32px;
    width: 100%;
    height: 100%;
    background: rgba(39,39,39, 0.73);
    box-sizing: border-box;
}

.song-cover {
    width: 100%;
    height: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 15px;
}

.song-lower-text,
.song-upper-text {
    width: 100%;
    height: auto;
}

.song-upper-text h1 {
    color: #fff;
    font-size: 1.65rem;
    font-weight: 500;
    margin: 0;
    margin-top: 20px;
    text-align: center;
}

.song-upper-text p {
    color: #666;
    font-size: 1.2rem;
    font-weight: 400;
    margin: 0;
    margin-top: 5px;
    text-align: center;
}

.song-lower-text h1 {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 500;
    margin: 0;
    text-align: center;
}

.song-lower-text p {
    color: #666;
    font-size: 1rem;
    font-weight: 400;
    margin: 0;
    margin-top: 15px;
    text-align: center;
}

.listen-button {
    padding: 10px 14px;
    border-radius: 32px;

    background-image: 
    linear-gradient(rgb(8,106,251), rgb(8,106,251)),
    linear-gradient(-40deg, #0041CD 0%, #3194F2 100%);

    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);

    background-origin: border-box;
    background-clip: padding-box, border-box;
    border: 4px solid transparent;

    color: white;
    font-size: 1.3rem;
    font-weight: 500;
    text-align: center;

    margin-top: 15px;

    cursor: pointer;
    text-decoration: none;

    width: 150px;

    transition: all 0.3s ease;
}

.listen-button:hover {
    transform: translateY(-0.5px) scale(1.01);

    box-shadow: 
    0 12px 30px rgba(0, 0, 0, 0.7);
}

.floating-btn {
    position: fixed;
    z-index: 10000;

    padding: 10px 14px;
    border-radius: 32px;

    background: rgba(39,39,39, 0.73);
    backdrop-filter: blur(10px);

    color: white;
    font-size: 0.8rem;
    font-weight: 200;

    border: none;
    cursor: pointer;
    text-decoration: none;

    transition: background 0.2s ease, transform 0.15s ease;
}

.floating-btn:hover {
    background: rgba(60,60,60,0.8);
    transform: scale(1.05);
}

.top-btn {
    top: 20px;
    left: 20px;
}

.bottom-btn {
    bottom: 20px;
    right: 20px;
}

#return {
    display: flex;
    align-items: center;
    gap: 6px;
}

#return .icon {
    display: flex;
}