/* Music Sheets — match Class Materials page margins / card padding */
#musicSheetsTabs {
    margin-bottom: 12px;
    width: 100%;
    box-sizing: border-box;
}

#musicSheetsInterface .mdc-tab-panel {
    width: 100%;
}

/* Music Sheets — library 30% / score render 70% when practicing */
#music-sheetsContainer .ms-workspace {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: calc(100vh - 220px);
}

#music-sheetsContainer .ms-workspace--playing {
    flex-direction: row;
    align-items: stretch;
}

#music-sheetsContainer .ms-workspace--playing .ms-library {
    flex: 0 0 30%;
    max-width: 30%;
    min-width: 0;
    overflow: auto;
}

#music-sheetsContainer .ms-workspace--playing .ms-player-panel {
    flex: 1 1 70%;
    max-width: 70%;
    min-width: 0;
    display: flex !important;
    flex-direction: column;
    margin-top: 0;
}

#music-sheetsContainer .ms-workspace--playing .ms-table-wrap {
    max-height: calc(100vh - 280px);
    overflow: auto;
}

#music-sheetsContainer .ms-player-panel {
    margin-top: 20px;
}

#music-sheetsContainer .ms-transport {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    padding: 12px 16px;
    background: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 10px;
    margin-bottom: 12px;
    flex-shrink: 0;
}

#music-sheetsContainer .ms-transport .ms-meta {
    font-size: 12px;
    color: #666;
    margin-left: auto;
    display: flex;
    gap: 16px;
    align-items: center;
}

#music-sheetsContainer .ms-player-body {
    display: flex;
    flex-direction: row;
    gap: 12px;
    flex: 1 1 auto;
    min-height: 0;
    align-items: stretch;
}

/* Score render dominates; original upload stays a slim reference strip */
#music-sheetsContainer .ms-score-pane,
#music-sheetsContainer #msScoreContainer {
    flex: 1 1 82%;
    max-width: 100%;
    overflow: auto;
    background: #fff;
    border: 1px solid #f0f0f0;
    border-radius: 10px;
    padding: 12px;
    min-height: 280px;
}

#music-sheetsContainer .ms-player-body:has(.ms-aux-pane[style*="display: block"]),
#music-sheetsContainer .ms-player-body.ms-player-body--with-aux #msScoreContainer {
    flex: 1 1 82%;
    max-width: 82%;
}

#music-sheetsContainer .ms-aux-pane {
    flex: 0 0 18%;
    max-width: 18%;
    min-width: 0;
    overflow: auto;
    background: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 10px;
    padding: 8px;
}

#music-sheetsContainer .ms-aux-label {
    font-size: 11px;
    font-weight: 700;
    color: #888;
    letter-spacing: .4px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

#music-sheetsContainer #msScoreContainer svg {
    max-width: 100%;
    height: auto;
}

#music-sheetsContainer .ms-image-wrap {
    text-align: center;
    margin-bottom: 12px;
}

#music-sheetsContainer .ms-sheet-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
}

#music-sheetsContainer .ms-image-hint {
    margin: 12px 0 0;
    font-size: 12px;
    color: #888;
}

@keyframes ms-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

#music-sheetsContainer .material-icons[style*="animation:spin"] {
    animation: ms-spin 1.2s linear infinite;
    display: inline-block;
}

#music-sheetsContainer .ms-tempo-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #555;
}

#music-sheetsContainer .ms-tempo-wrap input[type="range"] {
    width: 100px;
}

#music-sheetsContainer .ms-tempo-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #333;
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    flex-shrink: 0;
}

#music-sheetsContainer .ms-tempo-btn:hover {
    border-color: var(--primary-color, #f70880);
    color: var(--primary-color, #f70880);
}

#music-sheetsContainer .ms-tempo-btn:active {
    background: #fafafa;
}

#music-sheetsContainer .ms-musescore-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 12px;
}

#music-sheetsContainer .ms-musescore-empty {
    text-align: center;
    padding: 48px 16px;
    color: #999;
}

#music-sheetsContainer .ms-musescore-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    border: 1px solid #f0f0f0;
    border-radius: 10px;
    background: #fafafa;
    margin-top: 8px;
}

#music-sheetsContainer .ms-musescore-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color, #f70880), #ff8552);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

#music-sheetsContainer .ms-musescore-card-icon .material-icons {
    color: #fff;
    font-size: 26px;
}

#music-sheetsContainer .ms-musescore-card-title {
    font-weight: 600;
    color: #222;
    font-size: 14px;
    margin-bottom: 4px;
}

#music-sheetsContainer .ms-musescore-card-url {
    font-size: 12px;
    color: #666;
    word-break: break-all;
    margin-bottom: 12px;
}

#music-sheetsContainer .ms-musescore-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

#musicSheetsTabs {
    /* width/centering handled above with Class Materials layout */
}

#music-sheetsContainer .ms-webmscore-toolbar {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding: 10px 12px;
    background: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

#music-sheetsContainer .ms-webmscore-toolbar > * {
    flex-shrink: 0;
}

/* Custom Choose File control */
#music-sheetsContainer .ms-file-picker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: min(280px, 42vw);
}

#music-sheetsContainer .ms-file-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

#music-sheetsContainer .ms-file-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 34px;
    padding: 0 12px;
    border: 1px solid color-mix(in srgb, var(--primary-color, #f70880) 45%, #ddd);
    border-radius: 8px;
    background: #fff;
    color: var(--primary-color, #f70880);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

#music-sheetsContainer .ms-file-btn .material-icons {
    font-size: 18px;
    color: inherit;
}

#music-sheetsContainer .ms-file-btn:hover {
    background: color-mix(in srgb, var(--primary-color, #f70880) 8%, #fff);
    border-color: var(--primary-color, #f70880);
    box-shadow: 0 2px 6px color-mix(in srgb, var(--primary-color, #f70880) 20%, transparent);
}

#music-sheetsContainer .ms-file-btn:active {
    transform: translateY(1px);
}

#music-sheetsContainer .ms-file-name {
    display: inline-block;
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
    color: #666;
}

#music-sheetsContainer .ms-file-name.is-selected {
    color: var(--text-primary, #222);
    font-weight: 500;
}

/* Themed toolbar buttons (Load / Play / Pause / Stop / Demo) */
#music-sheetsContainer .ms-wm-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 34px;
    padding: 0 12px;
    border-radius: 8px;
    border: none;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

#music-sheetsContainer .ms-wm-btn .material-icons {
    font-size: 18px;
    line-height: 1;
}

#music-sheetsContainer .ms-wm-btn--primary {
    color: #fff;
    background: var(--primary-gradient, linear-gradient(135deg, var(--primary-color, #f70880), var(--accent-color, #ff8552)));
    box-shadow: 0 2px 8px color-mix(in srgb, var(--primary-color, #f70880) 28%, transparent);
}

#music-sheetsContainer .ms-wm-btn--primary:hover:not(:disabled) {
    box-shadow: 0 4px 12px color-mix(in srgb, var(--primary-color, #f70880) 36%, transparent);
}

#music-sheetsContainer .ms-wm-btn--outline {
    color: var(--primary-color, #f70880);
    background: #fff;
    border: 1px solid color-mix(in srgb, var(--primary-color, #f70880) 40%, #ddd);
}

#music-sheetsContainer .ms-wm-btn--outline:hover:not(:disabled) {
    background: color-mix(in srgb, var(--primary-color, #f70880) 8%, #fff);
    border-color: var(--primary-color, #f70880);
}

#music-sheetsContainer .ms-wm-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
}

#music-sheetsContainer #msWmBtnPlay.ms-wm-btn--primary:not(:disabled) {
    min-width: 78px;
}

#music-sheetsContainer .ms-webmscore-toolbar .ms-tempo-wrap {
    padding: 0 4px;
}

#music-sheetsContainer .ms-wm-meta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
    font-size: 12px;
    color: #666;
    white-space: nowrap;
}

#music-sheetsContainer .ms-webmscore-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    height: calc(100vh - 230px);
    max-height: calc(100vh - 230px);
    min-height: 420px;
}

#music-sheetsContainer .ms-webmscore-panel > p {
    flex: 0 0 auto;
    margin: 0 !important;
}

#music-sheetsContainer .ms-webmscore-toolbar {
    flex: 0 0 auto;
}

#music-sheetsContainer #msWmError {
    flex: 0 0 auto;
}

#music-sheetsContainer .ms-webmscore-score {
    flex: 1 1 0;
    min-height: 180px;
    max-height: none;
    margin-top: 0;
    border: 1px solid #f0f0f0;
    border-radius: 10px;
    background: #fff;
    overflow: auto;
    padding: 12px;
}

#music-sheetsContainer .ms-webmscore-placeholder {
    text-align: center;
    padding: 64px 16px;
    color: #999;
}

#music-sheetsContainer .ms-wm-badge {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .3px;
    text-transform: uppercase;
    color: #0369a1;
    background: #e0f2fe;
    padding: 2px 8px;
    border-radius: 999px;
}

#music-sheetsContainer .ms-webmscore-pages {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

#music-sheetsContainer .ms-webmscore-page {
    position: relative;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
    border-radius: 4px;
    overflow: hidden;
}

#music-sheetsContainer .ms-webmscore-cursor {
    position: absolute;
    background: rgba(247, 8, 128, 0.2);
    border: 2px solid rgba(247, 8, 128, 0.78);
    border-radius: 3px;
    box-shadow:
        inset 3px 0 0 #f70880,
        0 0 0 3px rgba(247, 8, 128, 0.14),
        0 2px 10px rgba(247, 8, 128, 0.18);
    pointer-events: none;
    z-index: 3;
    transition: left .06s linear, top .06s linear, width .06s linear, height .06s linear;
}

#music-sheetsContainer .ms-wm-loading {
    padding: 48px;
    text-align: center;
    color: #666;
    font-size: 13px;
}

/* Virtual piano pinned under the score so it stays visible while playing */
#music-sheetsContainer .ms-vpiano-host {
    flex: 0 0 auto;
    margin-top: 0;
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    background: linear-gradient(180deg, #f7f7f8 0%, #ececec 100%);
    padding: 10px 10px 6px;
    min-height: 136px;
    box-shadow: 0 -4px 14px rgba(0, 0, 0, 0.06);
    z-index: 5;
}

#music-sheetsContainer .ms-vpiano-host[aria-hidden="true"]:not(.is-ready) {
    opacity: 0.92;
}

#music-sheetsContainer .ms-vpiano-host.is-ready {
    display: block;
}

#music-sheetsContainer .ms-vpiano-placeholder {
    text-align: center;
    padding: 28px 12px;
    color: #999;
    font-size: 12px;
}

#music-sheetsContainer .ms-vpiano-hint {
    text-align: center;
    font-size: 11px;
    color: #888;
    margin-top: 6px;
    letter-spacing: .2px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    align-items: center;
}

#music-sheetsContainer .ms-vpiano-swatch {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    margin-right: 4px;
    vertical-align: -1px;
}

#music-sheetsContainer .ms-vpiano-swatch--r {
    background: #f70880;
}

#music-sheetsContainer .ms-vpiano-swatch--l {
    background: #0284c7;
}

#music-sheetsContainer .ms-vpiano-scroll {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
}

#music-sheetsContainer .ms-vpiano-board {
    position: relative;
    height: 124px;
    min-width: calc(var(--ms-vp-white-count, 15) * 24px);
    width: 100%;
    user-select: none;
    touch-action: none;
}

#music-sheetsContainer .ms-vpiano-key {
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

#music-sheetsContainer .ms-vpiano-key--white {
    position: relative;
    display: inline-block;
    height: 100%;
    width: calc(100% / var(--ms-vp-white-count, 15));
    vertical-align: top;
    background: linear-gradient(180deg, #fff 0%, #f3f3f3 70%, #e6e6e6 100%);
    border: 1px solid #cfcfcf;
    border-radius: 0 0 4px 4px;
    box-shadow: inset 0 -2px 0 rgba(0,0,0,.06);
    z-index: 1;
}

#music-sheetsContainer .ms-vpiano-key--black {
    position: absolute;
    top: 0;
    height: 58%;
    background: linear-gradient(180deg, #3a3a3a 0%, #111 85%, #000 100%);
    border: 1px solid #000;
    border-radius: 0 0 3px 3px;
    z-index: 3;
    box-shadow: 0 2px 4px rgba(0,0,0,.35);
}

#music-sheetsContainer .ms-vpiano-label {
    position: absolute;
    bottom: 8px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 10px;
    font-weight: 600;
    color: #999;
    pointer-events: none;
}

#music-sheetsContainer .ms-vpiano-key.is-hand-r.ms-vpiano-key--white,
#music-sheetsContainer .ms-vpiano-key.is-playback.is-hand-r.ms-vpiano-key--white {
    background: linear-gradient(180deg, #ffe4f0 0%, #f70880 55%, #c40666 100%);
    border-color: #f70880;
    box-shadow: inset 0 -2px 0 rgba(0,0,0,.12), 0 0 0 1px rgba(247,8,128,.25);
}

#music-sheetsContainer .ms-vpiano-key.is-hand-r.ms-vpiano-key--black,
#music-sheetsContainer .ms-vpiano-key.is-playback.is-hand-r.ms-vpiano-key--black {
    background: linear-gradient(180deg, #ff6bab 0%, #f70880 70%, #9a0450 100%);
    border-color: #f70880;
    box-shadow: 0 2px 6px rgba(247,8,128,.45);
}

#music-sheetsContainer .ms-vpiano-key.is-hand-l.ms-vpiano-key--white,
#music-sheetsContainer .ms-vpiano-key.is-playback.is-hand-l.ms-vpiano-key--white {
    background: linear-gradient(180deg, #e0f2fe 0%, #38bdf8 55%, #0284c7 100%);
    border-color: #0284c7;
    box-shadow: inset 0 -2px 0 rgba(0,0,0,.12), 0 0 0 1px rgba(2,132,199,.3);
}

#music-sheetsContainer .ms-vpiano-key.is-hand-l.ms-vpiano-key--black,
#music-sheetsContainer .ms-vpiano-key.is-playback.is-hand-l.ms-vpiano-key--black {
    background: linear-gradient(180deg, #7dd3fc 0%, #0284c7 70%, #0369a1 100%);
    border-color: #0284c7;
    box-shadow: 0 2px 6px rgba(2,132,199,.45);
}

/* Both hands on same key */
#music-sheetsContainer .ms-vpiano-key.is-hand-both.ms-vpiano-key--white {
    background: linear-gradient(180deg, #ffe4f0 0%, #a855f7 50%, #0284c7 100%);
    border-color: #7c3aed;
    box-shadow: inset 0 -2px 0 rgba(0,0,0,.12), 0 0 0 1px rgba(124,58,237,.35);
}

#music-sheetsContainer .ms-vpiano-key.is-hand-both.ms-vpiano-key--black {
    background: linear-gradient(180deg, #f70880 0%, #7c3aed 50%, #0284c7 100%);
    border-color: #7c3aed;
    box-shadow: 0 2px 6px rgba(124,58,237,.45);
}

#music-sheetsContainer .ms-vpiano-key.is-manual:not(.is-playback).ms-vpiano-key--white {
    background: linear-gradient(180deg, #fef3c7 0%, #fbbf24 60%, #d97706 100%);
    border-color: #d97706;
}

#music-sheetsContainer .ms-vpiano-key.is-manual:not(.is-playback).ms-vpiano-key--black {
    background: linear-gradient(180deg, #fcd34d 0%, #d97706 80%, #92400e 100%);
}

#music-sheetsContainer .ms-vpiano-key.is-playback .ms-vpiano-label,
#music-sheetsContainer .ms-vpiano-key.is-active .ms-vpiano-label {
    color: #fff;
}

@media (max-width: 960px) {
    #music-sheetsContainer .ms-workspace--playing {
        flex-direction: column;
    }
    #music-sheetsContainer .ms-workspace--playing .ms-library,
    #music-sheetsContainer .ms-workspace--playing .ms-player-panel {
        flex: 1 1 auto;
        max-width: 100%;
    }
    #music-sheetsContainer .ms-player-body {
        flex-direction: column;
    }
    #music-sheetsContainer .ms-player-body.ms-player-body--with-aux #msScoreContainer,
    #music-sheetsContainer .ms-aux-pane {
        flex: 1 1 auto;
        max-width: 100%;
    }
    #music-sheetsContainer .ms-vpiano-board {
        height: 108px;
        min-width: calc(var(--ms-vp-white-count, 15) * 20px);
    }
}