/* Piano Roll Styles */

.piano-roll-container {
    display: flex;
    flex-direction: column;
    background: #1a1a1a;
    border-radius: 8px;
    overflow: hidden;
    height: 100%;
    min-height: 400px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Toolbar */
.pr-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #2a2a2a;
    padding: 8px 12px;
    border-bottom: 1px solid #333;
    flex-shrink: 0;
}

.pr-toolbar-left,
.pr-toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pr-btn {
    background: #3a3a3a;
    border: 1px solid #444;
    color: #fff;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
}

.pr-btn:hover {
    background: #4a4a4a;
    border-color: #555;
}

.pr-btn:active {
    background: #2a2a2a;
}

.pr-btn.active {
    background: #4a8;
    border-color: #5b9;
}

.pr-btn.playing {
    background: #d44;
    border-color: #e55;
    animation: pulse 0.5s infinite alternate;
}

@keyframes pulse {
    from { opacity: 1; }
    to { opacity: 0.7; }
}

.pr-select {
    background: #3a3a3a;
    border: 1px solid #444;
    color: #fff;
    padding: 6px 8px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.pr-divider {
    width: 1px;
    height: 20px;
    background: #444;
    margin: 0 4px;
}

.pr-bars-display {
    color: #888;
    font-size: 12px;
    padding: 0 8px;
}

.pr-bank-label {
    color: #888;
    font-size: 11px;
    margin-right: 4px;
}

.pr-bank-btns {
    display: flex;
    gap: 4px;
}

.pr-bank-btn {
    min-width: 28px;
    padding: 6px 8px;
}

.pr-bank-btn.active {
    background: #4a8;
    border-color: #5b9;
    color: #fff;
}

.pr-bank-hint {
    color: #666;
    font-size: 10px;
    margin-left: 6px;
}

.pr-repeat-btns {
    display: flex;
    gap: 4px;
}

.pr-repeat-btn {
    min-width: 28px;
    padding: 6px 8px;
}

.pr-voice-label {
    color: #888;
    font-size: 11px;
    margin-right: 4px;
}

.pr-voice-selector {
    display: flex;
    gap: 8px;
}

.pr-voice-chk {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #aaa;
    font-size: 11px;
    cursor: pointer;
}

.pr-voice-chk input[type="checkbox"] {
    accent-color: #4a8;
}

/* Main Content */
.pr-main {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Piano Keys */
.pr-piano-container {
    width: 50px;
    flex-shrink: 0;
    background: #222;
    border-right: 1px solid #333;
    overflow: hidden;
}

.pr-piano-scroll {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.pr-key {
    width: 100%;
    height: 16px;
    position: relative;
    box-sizing: border-box;
}

.pr-key-white {
    background: linear-gradient(to right, #f5f5f5 0%, #eee 85%, #ddd 100%);
    border-bottom: 1px solid #bbb;
}

.pr-key-black {
    background: linear-gradient(to right, #333 0%, #222 85%, #111 100%);
    border-bottom: 1px solid #000;
    z-index: 1;
}

.pr-key-c {
    border-bottom: 2px solid #999;
}

.pr-key-label {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 9px;
    color: #666;
    font-weight: bold;
}

.pr-key-black .pr-key-label {
    color: #888;
}

.pr-key:hover {
    filter: brightness(1.1);
}

.pr-key:active {
    filter: brightness(0.9);
}

/* Grid */
.pr-grid-container {
    flex: 1;
    overflow: auto;
    background: #1a1a1a;
    cursor: crosshair;
}

.pr-grid-scroll {
    min-width: 100%;
    min-height: 100%;
}

.pr-canvas {
    display: block;
}

/* Status */
.pr-status {
    background: #222;
    padding: 6px 12px;
    border-top: 1px solid #333;
    font-size: 11px;
    color: #888;
    flex-shrink: 0;
}

/* Scrollbars */
.pr-grid-container::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.pr-grid-container::-webkit-scrollbar-track {
    background: #1a1a1a;
}

.pr-grid-container::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 5px;
}

.pr-grid-container::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.pr-grid-container::-webkit-scrollbar-corner {
    background: #1a1a1a;
}

/* Note hover effect */
.pr-canvas {
    image-rendering: pixelated;
}

/* ── Mobile ── */
@media (max-width: 768px) {
    .pr-toolbar {
        flex-wrap: wrap;
        gap: 6px;
        padding: 8px;
    }

    .pr-toolbar-left,
    .pr-toolbar-right {
        flex-wrap: wrap;
        gap: 5px;
    }

    .pr-bank-hint { display: none; }

    .pr-voice-label { display: none; }

    .pr-btn {
        min-width: 38px;
        height: 38px;
        font-size: 14px;
    }

    .pr-select {
        height: 38px;
        font-size: 13px;
    }

    /* Allow touch scrolling inside grid without fighting page scroll */
    .pr-grid-container {
        touch-action: pan-x pan-y;
        -webkit-overflow-scrolling: touch;
    }

    .pr-piano-container {
        width: 36px;
    }

    .pr-key-label { display: none; }
}

@media (max-width: 480px) {
    .pr-divider { display: none; }
    .pr-bars-display { display: none; }
}