/* Hiển thị Sheet nhạc (PDF) & Style Yamaha */

.sheet-music-box,
.style-file-box {
    margin: 30px 0;
    padding: 18px;
    background: #fafafa;
    border: 1px solid #e5e5e5;
    border-radius: 6px;
}

.sheet-music-title {
    margin: 0 0 14px;
    font-size: 18px;
    font-weight: 700;
    color: #222;
}

.sheet-music-iframe {
    display: block;
    width: 100%;
    background: #fff;
    border-radius: 4px;
}

.sheet-music-img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    border-radius: 4px;
    border: 1px solid #e5e5e5;
}

.sheet-music-download {
    margin: 14px 0 0;
}

.sheet-music-download .button {
    display: inline-block;
    padding: 9px 22px;
    background: #ed1c24;
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    transition: background 0.15s ease;
}

.sheet-music-download .button:hover {
    background: #c9181f;
    color: #fff;
}