/* studio/style.css — Jazudu Studio multi-track editor */

/* ── Layout ── */
.studio-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding-top: 56px; /* nav height */
    overflow: hidden;
    position: relative;
    z-index: 1;
}

/* ── Toolbar ── */
.studio-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 48px;
    padding: 0 12px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    gap: 8px;
    z-index: 10;
}
.toolbar-left, .toolbar-center, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
}
.toolbar-center { gap: 4px; }
.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}
.project-name {
    background: none;
    border: 1px solid transparent;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
    width: 160px;
    font-family: inherit;
    outline: none;
}
.project-name:hover { border-color: var(--border); }
.project-name:focus { border-color: var(--cyan); }

.tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--dim);
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
    white-space: nowrap;
}
.tool-btn:hover:not(:disabled) { border-color: var(--cyan); color: var(--text); }
.tool-btn:disabled { opacity: 0.35; cursor: default; }
.tool-btn.accent { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-bg); }
.tool-btn.accent:hover { background: var(--cyan); color: #fff; }
[data-theme="dark"] .tool-btn.accent:hover { color: #000; }
.tool-btn.small { padding: 4px 8px; font-size: 11px; }

.transport-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 32px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--dim);
    cursor: pointer;
    transition: all 0.15s;
}
.transport-btn:hover { border-color: var(--cyan); color: var(--text); }
.transport-btn.play-btn {
    width: 44px;
    height: 36px;
    border-radius: 8px;
    background: var(--cyan-bg);
    border-color: var(--cyan);
    color: var(--cyan);
}
.transport-btn.play-btn:hover { background: var(--cyan); color: #fff; }
[data-theme="dark"] .transport-btn.play-btn:hover { color: #000; }
.transport-btn.play-btn.playing { background: var(--cyan); color: #fff; }
[data-theme="dark"] .transport-btn.play-btn.playing { color: #000; }

.time-display {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    font-weight: 700;
    color: var(--cyan);
    padding: 4px 10px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    min-width: 100px;
    text-align: center;
    letter-spacing: 0.5px;
}

.toolbar-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.bpm-input {
    width: 56px;
    padding: 4px 6px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 12px;
    font-family: inherit;
    text-align: center;
    outline: none;
}
.bpm-input:focus { border-color: var(--cyan); }

.zoom-slider {
    width: 100px;
    height: 4px;
    accent-color: var(--cyan);
    cursor: pointer;
}

.snap-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--dim);
    cursor: pointer;
}
.snap-toggle input { accent-color: var(--cyan); }

/* ── Edit Toolbar ── */
.edit-toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    padding: 0 12px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    gap: 3px;
}
.edit-toolbar .tool-btn.small {
    font-size: 10px;
    padding: 2px 6px;
    gap: 3px;
}
.edit-toolbar .toolbar-divider {
    height: 16px;
    margin: 0 2px;
}

/* ── Region Markers ── */
.region-marker {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    z-index: 19;
    display: none;
    cursor: ew-resize;
    pointer-events: auto;
}
.region-marker.visible { display: block; }
.region-marker-head {
    width: 16px;
    height: 14px;
    position: absolute;
    top: 0;
    left: -8px;
    font-size: 9px;
    font-weight: 800;
    color: #000;
    text-align: center;
    line-height: 14px;
    border-radius: 2px;
    z-index: 19;
    user-select: none;
}
.region-marker-line {
    position: absolute;
    top: 14px;
    bottom: 0;
    left: 0;
    width: 1px;
}
.region-in .region-marker-head { background: var(--lime); }
.region-in .region-marker-line { background: var(--lime); }
.region-out .region-marker-head { background: var(--orange); }
.region-out .region-marker-line { background: var(--orange); }
.region-highlight {
    position: absolute;
    top: 28px;
    bottom: 0;
    background: rgba(22, 163, 74, 0.08);
    z-index: 1;
    display: none;
    pointer-events: none;
}
.region-highlight.visible { display: block; }

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

/* ── Asset Panel ── */
.asset-panel {
    width: 220px;
    min-width: 220px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 5;
}
.asset-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}
.asset-panel-header h3 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}
.asset-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}
.asset-empty {
    font-size: 12px;
    color: var(--dim);
    text-align: center;
    padding: 24px 12px;
    line-height: 1.5;
}
.asset-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 6px;
    cursor: grab;
    transition: background 0.15s;
    border: 1px solid transparent;
    margin-bottom: 4px;
}
.asset-item:hover { background: var(--surface2); border-color: var(--border); }
.asset-item.dragging { opacity: 0.5; }
.asset-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}
.asset-icon.beatlab { background: var(--cyan-bg); color: var(--cyan); }
.asset-icon.soundlab { background: var(--purple-bg); color: var(--purple); }
.asset-icon.file { background: var(--lime-bg); color: var(--lime); }
.asset-info { flex: 1; min-width: 0; }
.asset-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.asset-duration {
    font-size: 10px;
    color: var(--dim);
}
.asset-delete {
    background: none;
    border: none;
    color: var(--dim);
    cursor: pointer;
    padding: 2px;
    border-radius: 4px;
    display: flex;
    opacity: 0;
    transition: opacity 0.15s;
}
.asset-item:hover .asset-delete { opacity: 1; }
.asset-delete:hover { color: var(--pink); }

.asset-toggle {
    display: none;
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 6;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px;
    color: var(--dim);
    cursor: pointer;
}
.asset-toggle:hover { color: var(--cyan); }

/* ── Timeline ── */
.timeline {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    background: var(--bg);
}

.time-ruler-row {
    display: flex;
    height: 28px;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
}
.track-header-spacer {
    width: 180px;
    min-width: 180px;
    background: var(--surface);
    border-right: 1px solid var(--border);
}
.time-ruler {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--surface);
    cursor: pointer;
}
.time-ruler canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.track-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

/* ── Track ── */
.track {
    display: flex;
    height: 96px;
    border-bottom: 1px solid var(--border);
    position: relative;
}
.track.muted { opacity: 0.5; }

.track-header {
    width: 180px;
    min-width: 180px;
    padding: 6px 10px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-shrink: 0;
    overflow: hidden;
}
.track-top-row {
    display: flex;
    align-items: center;
    gap: 4px;
}
.track-name {
    font-size: 11px;
    font-weight: 700;
    color: var(--text);
    background: none;
    border: none;
    padding: 2px 4px;
    border-radius: 3px;
    outline: none;
    flex: 1;
    min-width: 0;
    font-family: inherit;
}
.track-name:hover { background: var(--surface2); }
.track-name:focus { background: var(--surface2); border: 1px solid var(--cyan); padding: 1px 3px; }
.track-color {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    flex-shrink: 0;
}

.track-controls {
    display: flex;
    align-items: center;
    gap: 3px;
}
.track-ctrl-btn {
    width: 22px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--dim);
    font-size: 9px;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    font-family: inherit;
    padding: 0;
}
.track-ctrl-btn:hover { border-color: var(--cyan); color: var(--text); }
.track-ctrl-btn.active { background: var(--cyan); color: #fff; border-color: var(--cyan); }
[data-theme="dark"] .track-ctrl-btn.active { color: #000; }
.track-ctrl-btn.mute-btn.active { background: var(--orange); border-color: var(--orange); color: #fff; }
.track-ctrl-btn.solo-btn.active { background: var(--lime); border-color: var(--lime); color: #fff; }
[data-theme="dark"] .track-ctrl-btn.mute-btn.active { color: #000; }
[data-theme="dark"] .track-ctrl-btn.solo-btn.active { color: #000; }
.track-ctrl-btn.fx-btn { font-size: 8px; letter-spacing: 0.5px; }
.track-ctrl-btn.delete-btn:hover { border-color: var(--pink); color: var(--pink); }

.track-vol-pan {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.track-slider-row {
    display: flex;
    align-items: center;
    gap: 4px;
}
.track-slider {
    flex: 1;
    height: 3px;
    accent-color: var(--cyan);
    cursor: pointer;
    min-width: 0;
}
.track-slider-label {
    font-size: 8px;
    color: var(--dim);
    font-weight: 700;
    width: 10px;
    flex-shrink: 0;
}

/* ── Track Lane ── */
.track-lane {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--cell-bg);
}

/* ── Clip ── */
.clip {
    position: absolute;
    top: 4px;
    bottom: 4px;
    border-radius: 5px;
    overflow: hidden;
    cursor: grab;
    border: 1px solid transparent;
    transition: border-color 0.1s;
    z-index: 2;
}
.clip:hover { border-color: rgba(255,255,255,0.3); }
.clip.selected { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan); z-index: 3; }
.clip canvas {
    width: 100%;
    height: 100%;
    display: block;
}
.clip-label {
    position: absolute;
    top: 3px;
    left: 6px;
    font-size: 9px;
    font-weight: 700;
    color: rgba(255,255,255,0.9);
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    pointer-events: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: calc(100% - 12px);
}

/* Trim handles */
.trim-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 6px;
    cursor: ew-resize;
    z-index: 4;
    opacity: 0;
    transition: opacity 0.15s;
}
.trim-handle::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 20px;
    background: rgba(255,255,255,0.8);
    border-radius: 1px;
}
.trim-handle.left { left: 0; }
.trim-handle.left::after { left: 2px; }
.trim-handle.right { right: 0; }
.trim-handle.right::after { right: 2px; }
.clip:hover .trim-handle, .clip.selected .trim-handle { opacity: 1; }

/* Fade handles */
.fade-handle {
    position: absolute;
    top: 0;
    width: 10px;
    height: 10px;
    cursor: ew-resize;
    z-index: 4;
    opacity: 0;
    transition: opacity 0.15s;
}
.fade-handle::after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
}
.fade-handle.fade-in { left: 0; top: 0; }
.fade-handle.fade-in::after {
    border-left: 8px solid rgba(255,255,255,0.7);
    border-bottom: 8px solid transparent;
}
.fade-handle.fade-out { right: 0; top: 0; }
.fade-handle.fade-out::after {
    border-right: 8px solid rgba(255,255,255,0.7);
    border-bottom: 8px solid transparent;
}
.clip:hover .fade-handle, .clip.selected .fade-handle { opacity: 1; }

/* Fade overlay */
.fade-overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}
.fade-overlay.fade-in-overlay {
    left: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.5), transparent);
}
.fade-overlay.fade-out-overlay {
    right: 0;
    background: linear-gradient(to left, rgba(0,0,0,0.5), transparent);
}

/* ── Playhead ── */
.playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    z-index: 20;
    pointer-events: none;
    left: 180px; /* starts at track header width */
}
.playhead-head {
    width: 11px;
    height: 11px;
    background: var(--pink);
    position: absolute;
    top: 0;
    left: -5px;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
}
.playhead-line {
    position: absolute;
    top: 11px;
    bottom: 0;
    left: 0;
    width: 1px;
    background: var(--pink);
}

/* ── Add Track ── */
.add-track-row {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}
.add-track-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px dashed var(--border);
    background: none;
    color: var(--dim);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}
.add-track-btn:hover { border-color: var(--cyan); color: var(--cyan); }

/* ── Bottom Panel ── */
.bottom-panel {
    height: 160px;
    min-height: 120px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    overflow-y: auto;
    flex-shrink: 0;
    padding: 12px 16px;
}
.bottom-panel h4 {
    font-size: 12px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}
.bottom-empty {
    font-size: 12px;
    color: var(--dim);
    text-align: center;
    padding: 20px;
}

/* Clip Properties */
.prop-grid {
    display: grid;
    grid-template-columns: 80px 1fr 60px;
    gap: 6px 10px;
    align-items: center;
}
.prop-grid label {
    font-size: 11px;
    font-weight: 600;
    color: var(--dim);
}
.prop-grid input[type="range"] {
    width: 100%;
    height: 4px;
    accent-color: var(--cyan);
}
.prop-val {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

/* Effects Panel */
.effects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}
.effect-module {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
}
.effect-header {
    margin-bottom: 8px;
}
.effect-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}
.effect-toggle input { accent-color: var(--cyan); }
.effect-toggle span {
    font-size: 12px;
    font-weight: 700;
    color: var(--text);
}
.effect-params { display: flex; flex-direction: column; gap: 6px; }
.param-row {
    display: grid;
    grid-template-columns: 52px 1fr 48px;
    gap: 6px;
    align-items: center;
}
.param-row label {
    font-size: 10px;
    font-weight: 600;
    color: var(--dim);
}
.param-row input[type="range"] {
    width: 100%;
    height: 3px;
    accent-color: var(--cyan);
}
.param-val {
    font-size: 10px;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    text-align: right;
}

/* ── Loop Button Active ── */
.transport-btn.active {
    border-color: var(--cyan);
    color: var(--cyan);
    background: var(--cyan-bg);
}

/* ── Welcome Hint ── */
.welcome-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    z-index: 1;
    opacity: 0.7;
}
.welcome-hint.hidden { display: none; }
.welcome-icon { margin-bottom: 12px; }
.welcome-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 6px;
}
.welcome-sub {
    font-size: 13px;
    color: var(--dim);
    margin: 0;
    max-width: 320px;
}
.welcome-sub a {
    color: var(--cyan);
    pointer-events: auto;
}

/* ── FX Preset Select ── */
.fx-preset-select {
    float: right;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
}
.fx-preset-select:hover { border-color: var(--cyan); }

/* ── Context Menu ── */
.context-menu {
    position: fixed;
    z-index: 1000;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 4px 0;
    min-width: 180px;
}
.context-menu button {
    display: block;
    width: 100%;
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 12px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all 0.1s;
    font-family: inherit;
}
.context-menu button:hover { background: var(--cyan-bg); color: var(--cyan); }
.context-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* ── Export Modal ── */
.export-info { display: flex; flex-direction: column; gap: 12px; }
.export-info p { font-size: 13px; color: var(--dim); }
.modal-select {
    flex: 1;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 6px;
    font-family: inherit;
    cursor: pointer;
}
.modal-select:hover { border-color: var(--cyan); }
.export-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
.export-row label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    min-width: 70px;
}
.export-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
}
.export-progress span { font-size: 13px; color: var(--dim); }

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Project List ── */
.project-list { display: flex; flex-direction: column; gap: 6px; }
.project-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s;
}
.project-item:hover { border-color: var(--cyan); }
.project-item-name { font-size: 13px; font-weight: 600; color: var(--text); }
.project-item-meta { font-size: 11px; color: var(--dim); }
.project-item-delete {
    background: none;
    border: none;
    color: var(--dim);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
}
.project-item-delete:hover { color: var(--pink); }
.empty-text { font-size: 13px; color: var(--dim); text-align: center; padding: 16px; }

/* ── Small Screen Warning ── */
.small-screen-warning {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface);
    border: 1px solid var(--orange);
    border-radius: 10px;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}
.small-screen-warning p { font-size: 13px; color: var(--text); margin: 0; white-space: nowrap; }

/* ── Toast ── */
/* Uses shared toast from theme.css */

/* ── Drag ghost ── */
.clip-ghost {
    position: fixed;
    pointer-events: none;
    z-index: 999;
    opacity: 0.6;
    border-radius: 5px;
}

/* Asset drag preview on timeline */
.drop-indicator {
    position: absolute;
    top: 4px;
    bottom: 4px;
    border: 2px dashed var(--cyan);
    border-radius: 5px;
    background: var(--cyan-bg);
    pointer-events: none;
    z-index: 5;
}

/* ── Responsive ── */
@media (max-width: 1100px) {
    .effects-grid { grid-template-columns: repeat(2, 1fr); }
    .bottom-panel { height: 200px; }
}
@media (max-width: 900px) {
    .asset-panel { display: none; }
    .asset-panel.visible { display: flex; position: absolute; left: 0; top: 0; bottom: 0; z-index: 15; box-shadow: var(--shadow-lg); }
    .asset-toggle { display: flex; }
    .toolbar-left { gap: 3px; }
    .toolbar-right { gap: 3px; }
    .project-name { width: 100px; }
    .zoom-slider { width: 60px; }
    .track-header { width: 140px; min-width: 140px; }
    .track-header-spacer { width: 140px; min-width: 140px; }
    .playhead { left: 140px; }
}
@media (max-width: 768px) {
    .effects-grid { grid-template-columns: 1fr; }
    .toolbar-right .toolbar-label { display: none; }
    .bpm-input { width: 48px; }
}