* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #0a0a12;
    --bg-panel: #12121a;
    --bg-track: #1a1a24;
    --bg-step: #252530;
    --bg-step-active: #3a3a48;
    --accent-primary: #00ffaa;
    --accent-secondary: #ff00aa;
    --accent-tertiary: #00aaff;
    --text-bright: #ffffff;
    --text-dim: #888899;
    --text-muted: #555566;
    --border-color: #333344;
    --glow-primary: rgba(0, 255, 170, 0.3);
    --glow-secondary: rgba(255, 0, 170, 0.3);
    
    --track-drums: #ff6b35;
    --track-bass: #f7931e;
    --track-chords: #00d4aa;
    --track-arp: #00aaff;
    --track-lead: #aa00ff;
    --track-pad: #ff00aa;
    --track-perc: #ffcc00;
    --track-fx: #ff3366;
}

html, body {
    height: 100%;
    overflow: auto;
}

body {
    font-family: 'Orbitron', monospace;
    background: var(--bg-dark);
    color: var(--text-bright);
    -webkit-user-select: none;
    user-select: none;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-step);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 8px;
    gap: 8px;
    overflow: auto;
}

header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    padding-right: 50px;
    background: var(--bg-panel);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
    flex-wrap: nowrap;
    position: relative;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-section h1 {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(90deg, #ff3300, #ffaa00, #ff6600, #ffcc00, #ff3300, #ffaa00, #ff4400, #ffbb00);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    animation: fire-flicker 12s ease-in-out infinite, fire-pulse 7s ease-in-out infinite;
}

@keyframes fire-flicker {
    0%, 100% {
        background-position: 0% 50%;
    }
    14% {
        background-position: 35% 50%;
    }
    28% {
        background-position: 15% 50%;
    }
    42% {
        background-position: 55% 50%;
    }
    56% {
        background-position: 30% 50%;
    }
    70% {
        background-position: 65% 50%;
    }
    85% {
        background-position: 20% 50%;
    }
}

@keyframes fire-pulse {
    0%, 100% {
        filter: brightness(1) saturate(1);
        opacity: 1;
    }
    20% {
        filter: brightness(1.15) saturate(1.1);
        opacity: 1;
    }
    40% {
        filter: brightness(0.6) saturate(0.8);
        opacity: 0.7;
    }
    55% {
        filter: brightness(1.1) saturate(1.05);
        opacity: 1;
    }
    75% {
        filter: brightness(0.4) saturate(0.6);
        opacity: 0.5;
    }
    90% {
        filter: brightness(1) saturate(1);
        opacity: 1;
    }
}

.logo-section .subtitle {
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 3px;
    display: block;
    margin-top: -2px;
}

.transport-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--bg-step);
    color: var(--text-dim);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.transport-btn:hover:not(:disabled) {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.transport-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.transport-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-dark);
    box-shadow: 0 0 15px var(--glow-primary);
}

.power-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-dark);
}

.fullscreen-btn {
    width: 32px;
    height: 32px;
    margin-left: auto;
    flex-shrink: 0;
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
}

.fullscreen-btn.active {
    background: var(--accent-tertiary);
    border-color: var(--accent-tertiary);
    color: var(--bg-dark);
}

.transport {
    display: flex;
    align-items: center;
    gap: 16px;
}

.tempo-control, .swing-control, .loop-control {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.tempo-control label, .swing-control label, .loop-control label {
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.spinner-control {
    display: flex;
    align-items: center;
    gap: 2px;
}

.spinner-btn {
    width: 24px;
    height: 24px;
    border: 1px solid var(--border-color);
    background: var(--bg-step);
    color: var(--text-bright);
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.spinner-input {
    width: 50px;
    height: 24px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    text-align: center;
    font-family: 'Orbitron', monospace;
    font-size: 12px;
    border-radius: 4px;
}

.swing-control input[type="range"] {
    width: 60px;
    height: 4px;
    -webkit-appearance: none;
    background: var(--bg-step);
    border-radius: 2px;
}

.swing-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
}

#swing-value {
    font-size: 10px;
    color: var(--accent-primary);
}

.loop-control select {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    cursor: pointer;
}

.genre-section {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.genre-section label {
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.genre-section select {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--accent-secondary);
    padding: 6px 12px;
    border-radius: 4px;
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    cursor: pointer;
    min-width: 120px;
}

.generate-btn {
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
    border: none;
    border-radius: 6px;
    color: var(--bg-dark);
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.2s;
    box-shadow: 0 0 15px var(--glow-primary);
}

.generate-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px var(--glow-primary);
}

.generate-btn:active {
    transform: scale(0.98);
}

.midi-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.midi-io {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.midi-io label {
    font-size: 8px;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.midi-io select {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-bright);
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    cursor: pointer;
    min-width: 80px;
}

.bus-section {
    position: relative;
}

#virtual-bus-indicator {
    position: absolute;
    right: 4px;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
}

#virtual-bus-indicator.active {
    background: var(--accent-primary);
    box-shadow: 0 0 8px var(--accent-primary);
}

main {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    display: flex;
    flex-direction: column;
    padding-right: 8px;
}

.tracks-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-height: 0;
}

.track {
    display: flex;
    align-items: stretch;
    background: var(--bg-panel);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    overflow: visible;
    flex: 1;
    min-height: 56px;
    min-width: fit-content;
}

.track.muted {
    opacity: 0.4;
}

.track-header {
    width: 80px;
    min-width: 80px;
    padding: 4px 6px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    border-right: 1px solid var(--border-color);
}

.track-name {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
}

.midi-channel {
    font-size: 9px;
    font-weight: 500;
    opacity: 0.7;
    color: var(--accent-primary);
    letter-spacing: 1px;
}

.track-controls {
    display: flex;
    gap: 3px;
}

.track-btn {
    width: 24px;
    height: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-step);
    color: var(--text-dim);
    font-size: 8px;
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s;
}

.track-btn:hover {
    border-color: var(--text-bright);
    color: var(--text-bright);
}

.track-btn.mute-btn.active {
    background: #ff4444;
    border-color: #ff4444;
    color: white;
}

.track-btn.solo-btn.active {
    background: #ffaa00;
    border-color: #ffaa00;
    color: black;
}

.track-btn.regen-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.track-settings {
    width: 200px;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    padding: 8px 16px;
    border-left: 1px solid var(--border-color);
    background: var(--bg-track);
}

.track-setting {
    display: flex;
    align-items: center;
    gap: 6px;
}

.track-setting label {
    font-size: 8px;
    color: var(--text-dim);
    text-transform: uppercase;
    width: 32px;
    flex-shrink: 0;
}

.track-setting input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    background: var(--bg-step);
    border-radius: 3px;
}

.track-setting input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
}

.octave-control {
    flex-shrink: 0;
}

.octave-spinner {
    display: flex;
    align-items: center;
    gap: 3px;
    background: var(--bg-step);
    border-radius: 3px;
    padding: 2px 4px;
}

.octave-btn {
    width: 14px;
    height: 14px;
    border: none;
    background: transparent;
    color: var(--text-dim);
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    padding: 0;
    line-height: 1;
}

.octave-btn:hover {
    color: var(--accent-primary);
}

.octave-value {
    width: 12px;
    text-align: center;
    font-size: 10px;
    font-family: 'Orbitron', monospace;
    color: var(--accent-primary);
    font-weight: 600;
}

.octave-scale-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.track-scale-mode {
    background: var(--bg-step);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    color: var(--text-color);
    font-size: 8px;
    font-family: 'Orbitron', sans-serif;
    padding: 2px 3px;
    cursor: pointer;
    text-transform: uppercase;
    width: 40px;
}

.track-scale-mode:hover {
    border-color: var(--accent-primary);
}

.track-scale-mode:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.track-scale-mode option {
    background: var(--bg-card);
    color: var(--text-color);
}

.track-setting input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
}

.track-grid {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 4px 12px 4px 8px;
    gap: 1px;
    overflow: hidden;
    min-width: 0;
}

.step {
    flex: 1;
    min-width: 12px;
    max-width: 28px;
    height: 100%;
    min-height: 40px;
    background: var(--bg-step);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
    transition: background 0.1s;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.step:hover {
    background: var(--bg-step-active);
}

.step.active {
    background: var(--track-drums);
    box-shadow: 0 0 8px currentColor;
}

.step.current {
    box-shadow: inset 0 0 0 2px var(--accent-primary);
}

.step .velocity-bar {
    width: 100%;
    background: currentColor;
    border-radius: 0 0 3px 3px;
    opacity: 0.8;
    transition: height 0.1s;
    pointer-events: none;
}

.step.beat-marker {
    border-top: 2px solid var(--text-muted);
}

.step.bar-marker {
    border-top: 2px solid var(--accent-primary);
}

footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-panel);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.footer-left {
    display: none;
}

.footer-right {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.footer-btn {
    padding: 6px 12px;
    background: var(--bg-step);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-dim);
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.footer-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 20px;
    background: var(--bg-panel);
    border: 1px solid var(--accent-primary);
    border-radius: 6px;
    color: var(--accent-primary);
    font-size: 12px;
    z-index: 1000;
    box-shadow: 0 0 20px var(--glow-primary);
    transition: opacity 0.3s, transform 0.3s;
}

.toast.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    pointer-events: none;
}

.electron-controls {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    z-index: 9999;
    -webkit-app-region: no-drag;
}

.electron-mode .electron-controls {
    display: flex;
}

@media (max-width: 900px) {
    header {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .genre-section {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
    
    .track-header {
        width: 100px;
        min-width: 100px;
    }
    
    .track-name {
        font-size: 9px;
    }
}

.footer-center {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    justify-content: center;
    min-width: 0;
    overflow: hidden;
}

.scale-section {
    display: flex;
    align-items: center;
    gap: 8px;
}

.scale-section label {
    font-size: 9px;
    color: var(--text-dim);
}

.scale-section select {
    background: var(--bg-step);
    border: 1px solid var(--border-color);
    color: var(--text-bright);
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    padding: 4px 8px;
    border-radius: 4px;
    min-width: 100px;
}

.footer-btn.small {
    padding: 6px 10px;
    font-size: 14px;
    min-width: 32px;
}

.footer-btn.disabled {
    opacity: 0.3;
    pointer-events: none;
}

.chain-section {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex-shrink: 1;
}

.chain-btn.active {
    background: var(--accent-secondary);
    color: var(--bg-dark);
    border-color: var(--accent-secondary);
}

.chain-controls {
    display: none;
    align-items: center;
    gap: 8px;
}

.chain-controls.active {
    display: flex;
}

.chain-controls select {
    background: var(--bg-step);
    border: 1px solid var(--border-color);
    color: var(--text-bright);
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    padding: 4px 8px;
    border-radius: 4px;
}

.chain-slots {
    display: flex;
    gap: 4px;
    flex-wrap: nowrap;
    max-width: 400px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 4px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) var(--bg-step);
}

.chain-slots::-webkit-scrollbar {
    height: 4px;
}

.chain-slots::-webkit-scrollbar-track {
    background: var(--bg-step);
    border-radius: 2px;
}

.chain-slots::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 2px;
}

.chain-slot {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-step);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 9px;
    flex-shrink: 0;
}

.chain-slot.active {
    border-color: var(--accent-secondary);
    background: rgba(255, 0, 170, 0.1);
}

.chain-slot .slot-name {
    cursor: pointer;
    color: var(--text-bright);
}

.chain-slot .slot-name:hover {
    color: var(--accent-primary);
}

.chain-slot .slot-repeats {
    display: flex;
    align-items: center;
    gap: 2px;
}

.chain-slot .repeat-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 2px 4px;
    font-size: 10px;
}

.chain-slot .repeat-btn:hover {
    color: var(--accent-primary);
}

.chain-slot .repeat-value {
    color: var(--accent-tertiary);
    min-width: 20px;
    text-align: center;
}

.chain-slot .slot-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 4px;
    font-size: 12px;
}

.chain-slot .slot-remove:hover {
    color: #ff4444;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-content h3 {
    color: var(--accent-primary);
    margin-bottom: 16px;
    font-size: 16px;
}

.modal-content h4 {
    color: var(--text-dim);
    margin: 16px 0 8px;
    font-size: 11px;
    text-transform: uppercase;
}

.scale-list,
.user-scales {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.scale-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg-step);
    border-radius: 4px;
    font-size: 11px;
}

.scale-item .scale-intervals {
    color: var(--text-muted);
    font-size: 10px;
}

.scale-item.user {
    border: 1px solid var(--accent-tertiary);
}

.scale-item .delete-scale {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 0 4px;
}

.scale-item .delete-scale:hover {
    color: #ff4444;
}

.new-scale-form {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.new-scale-form input {
    flex: 1;
    min-width: 120px;
    background: var(--bg-step);
    border: 1px solid var(--border-color);
    color: var(--text-bright);
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    padding: 8px 12px;
    border-radius: 4px;
}

.new-scale-form input::placeholder {
    color: var(--text-muted);
}

.new-scale-form button,
.close-modal {
    background: var(--bg-step);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.new-scale-form button:hover,
.close-modal:hover {
    background: var(--accent-primary);
    color: var(--bg-dark);
}

.close-modal {
    margin-top: 20px;
    width: 100%;
}

/* Piano Roll Modal - Completely Redesigned */
.piano-roll-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.piano-roll-modal.active {
    display: flex;
}

.piano-roll-content {
    width: calc(100% - 40px);
    max-width: 1600px;
    height: calc(100% - 60px);
    max-height: 800px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.piano-roll-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.piano-roll-title {
    font-family: 'Orbitron', monospace;
    font-size: 14px;
    color: var(--accent-primary);
    text-transform: uppercase;
    white-space: nowrap;
}

.piano-roll-info {
    display: flex;
    gap: 12px;
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    color: var(--text-dim);
}

.piano-roll-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    margin-right: 16px;
}

.pr-tool-btn {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-dim);
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    padding: 4px 8px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.15s;
}

.pr-tool-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.pr-tool-btn.active {
    background: var(--accent-primary);
    color: var(--bg-dark);
    border-color: var(--accent-primary);
}

.pr-tool-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pr-separator {
    color: var(--border-color);
    margin: 0 4px;
}

#pr-zoom-level {
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    color: var(--text-dim);
    min-width: 40px;
    text-align: center;
}

.piano-roll-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 24px;
    cursor: pointer;
    padding: 0 8px;
    line-height: 1;
    flex-shrink: 0;
}

.piano-roll-close:hover {
    color: #ff4444;
}

/* Piano Roll Body - Main Layout */
.piano-roll-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.piano-roll-left {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    width: 70px;
    background: var(--bg-card);
    border-right: 2px solid var(--border-color);
}

.pr-corner {
    height: 28px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.piano-keys-wrapper {
    flex: 1;
    overflow: hidden;
}

.piano-keys {
    display: flex;
    flex-direction: column;
}

.piano-key {
    height: 20px;
    min-height: 20px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    font-family: 'Orbitron', monospace;
    font-size: 9px;
    color: var(--text-dim);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    box-sizing: border-box;
    cursor: pointer;
    transition: background 0.1s;
    user-select: none;
}

.piano-key:hover {
    filter: brightness(1.2);
}

.piano-key.white {
    background: linear-gradient(90deg, #e8e8e8 0%, #f5f5f5 100%);
    color: #333;
}

.piano-key.black {
    background: linear-gradient(90deg, #2a2a2a 0%, #404040 100%);
    color: #aaa;
    height: 20px;
    min-height: 20px;
}

.piano-key.in-scale {
    border-left: 4px solid var(--accent-primary);
}

.piano-key.root-note {
    border-left: 4px solid #ff6b35;
}

.piano-key.root-note.white {
    background: linear-gradient(90deg, rgba(255,107,53,0.3), #f5f5f5 100%);
}

.piano-key.root-note.black {
    background: linear-gradient(90deg, rgba(255,107,53,0.4), #404040 100%);
}

.piano-key.playing {
    background: var(--accent-primary) !important;
    color: #000 !important;
}

/* Piano Roll Right - Grid Area */
.piano-roll-right {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.pr-step-numbers {
    height: 28px;
    display: flex;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    overflow-x: hidden;
    overflow-y: hidden;
}

.pr-step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Orbitron', monospace;
    font-size: 9px;
    color: var(--text-dim);
    box-sizing: border-box;
    border-right: 1px solid rgba(255,255,255,0.05);
}

.pr-step-num.beat {
    color: var(--text-primary);
}

.pr-step-num.bar {
    color: var(--accent-primary);
    font-weight: 600;
}

.piano-roll-grid-wrapper {
    flex: 1;
    overflow: auto;
    position: relative;
}

.piano-roll-grid {
    position: relative;
    min-width: max-content;
}

.piano-roll-row {
    display: flex;
    height: 20px;
    min-height: 20px;
}

.piano-roll-cell {
    height: 20px;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    cursor: crosshair;
    position: relative;
    box-sizing: border-box;
    transition: background 0.1s;
}

.piano-roll-cell.beat-marker {
    border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.piano-roll-cell.bar-marker {
    border-right: 2px solid rgba(0, 212, 170, 0.5);
}

.piano-roll-cell.in-scale {
    background: rgba(0, 212, 170, 0.06);
}

.piano-roll-cell.out-of-scale {
    background: rgba(30, 30, 35, 0.5);
}

.piano-roll-cell.root-row {
    background: rgba(255, 107, 53, 0.08);
}

.piano-roll-cell:hover {
    background: rgba(0, 212, 170, 0.25) !important;
}

/* Note Display */
.pr-note {
    position: absolute;
    top: 2px;
    height: calc(100% - 4px);
    border-radius: 3px;
    cursor: grab;
    display: flex;
    align-items: center;
    padding-left: 4px;
    font-family: 'Orbitron', monospace;
    font-size: 8px;
    color: rgba(0,0,0,0.6);
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    z-index: 10;
    user-select: none;
    min-width: 8px;
}

.pr-note:hover {
    filter: brightness(1.1);
    z-index: 20;
}

.pr-note.selected {
    box-shadow: 0 0 0 2px #fff, 0 2px 6px rgba(0,0,0,0.4);
    z-index: 30;
}

.pr-note.dragging {
    cursor: grabbing;
    opacity: 0.8;
}

.pr-note-resize {
    position: absolute;
    right: 0;
    top: 0;
    width: 6px;
    height: 100%;
    cursor: ew-resize;
    background: rgba(0,0,0,0.2);
    border-radius: 0 3px 3px 0;
}

/* Velocity indicator */
.pr-note::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(0,0,0,0.3);
    border-radius: 0 0 3px 3px;
}

/* Playhead */
.pr-playhead {
    position: absolute;
    top: 0;
    width: 2px;
    height: 100%;
    background: #ff4444;
    z-index: 100;
    pointer-events: none;
    display: none;
    box-shadow: 0 0 8px rgba(255,68,68,0.5);
}

.pr-playhead.visible {
    display: block;
}

/* Footer */
.piano-roll-footer {
    padding: 8px 16px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

#pr-status {
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    color: var(--text-dim);
}

/* Selection box */
.pr-selection {
    position: absolute;
    border: 1px dashed var(--accent-primary);
    background: rgba(0, 212, 170, 0.1);
    pointer-events: none;
    z-index: 50;
}

/* Velocity overlay */
.pr-velocity-overlay {
    position: fixed;
    background: var(--bg-card);
    border: 1px solid var(--accent-primary);
    border-radius: 4px;
    padding: 8px 12px;
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    color: var(--text-primary);
    z-index: 1001;
    display: none;
}

.pr-velocity-overlay.visible {
    display: block;
}