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

:root {
  --bg:       #1a1a2a;
  --bg2:      #20202e;
  --panel:    #23233a;
  --border:   #383858;
  --accent:   #6688ff;
  --accent2:  #ff8833;
  --text:     #e8eaf8;
  --dim:      #8888aa;
  --font:     'Courier New', monospace;
  --danger:   #ee4444;
}

html, body { height: 100%; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 12px; overflow: hidden; }

/* ── Layout ── */
#app {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-rows: 1fr 200px;
  height: 100vh;
  gap: 1px;
  background: var(--border);
}

/* ── Sidebar ── */
#sidebar {
  grid-row: 1 / 2;
  background: var(--panel);
  padding: 10px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#sidebar h1 {
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

#sidebar h2 {
  font-size: 10px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 5px;
}

section { display: flex; flex-direction: column; gap: 5px; }

input, select, button {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 7px;
  font-family: var(--font);
  font-size: 11px;
  border-radius: 1px;
  cursor: pointer;
  width: 100%;
}

input:focus, select:focus { outline: none; border-color: var(--accent); }
button:hover { border-color: var(--accent); color: var(--accent); }

/* Product list */
#product-list { list-style: none; display: flex; flex-direction: column; gap: 2px; max-height: 150px; overflow-y: auto; }
#product-list li {
  padding: 4px 7px;
  background: var(--bg2);
  border: 1px solid var(--border);
  cursor: grab;
  border-radius: 1px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
#product-list li:hover { border-color: var(--accent2); }
#product-list li .pname { color: var(--text); font-size: 11px; }
#product-list li .pmeta { color: var(--dim); font-size: 10px; }

/* Selected panel */
#selected-panel { display: flex; flex-direction: column; gap: 4px; }
.no-sel { color: var(--dim); font-size: 11px; font-style: italic; }
.sel-name { color: var(--accent); font-size: 12px; font-weight: bold; padding: 3px 0; }
.sel-pos  { color: var(--dim); font-size: 10px; }
#selected-panel label { display: flex; flex-direction: column; gap: 2px; font-size: 10px; color: var(--dim); }
#selected-panel label input { margin-top: 2px; }
.danger-btn { border-color: var(--accent2) !important; color: var(--accent2) !important; }
.danger-btn:hover { background: var(--accent2) !important; color: #000 !important; }
.show-actions { display: flex; gap: 4px; margin-top: 4px; }
.show-actions button { flex: 1; }
.del-btn { border-color: var(--danger) !important; color: var(--danger) !important; }
.del-btn:hover { background: var(--danger) !important; color: #fff !important; }

/* Channel grid */
#channel-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
}
.ch-btn {
  aspect-ratio: 1;
  background: var(--bg2);
  border: 1px solid var(--border);
  font-size: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 1px;
  padding: 0;
}
.ch-btn.assigned  { border-color: var(--accent); color: var(--accent); }
.ch-btn.assigned:hover { background: var(--accent); color: #000; }

/* ── Stage ── */
#stage-container {
  grid-row: 1 / 2;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
#stage { display: block; width: 100%; height: 100%; }
#stage-hint {
  position: absolute;
  bottom: 8px; right: 10px;
  color: var(--dim);
  font-size: 10px;
  pointer-events: none;
}

/* ── Timeline ── */
#timeline-panel {
  grid-column: 1 / -1;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

#timeline-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
#timeline-toolbar button, #timeline-toolbar label.music-btn {
  width: auto;
  padding: 4px 10px;
  font-size: 11px;
}
#time-display { font-size: 15px; color: var(--accent); font-family: var(--font); margin: 0 6px; min-width: 60px; }
.music-btn { border: 1px solid var(--border); color: var(--dim); cursor: pointer; padding: 4px 10px; border-radius: 1px; }
.music-btn:hover { border-color: var(--accent); color: var(--accent); }

.music-clear-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--dim);
  cursor: pointer;
  padding: 2px 7px;
  border-radius: 1px;
  font-size: 11px;
  line-height: 1;
}
.music-clear-btn:hover { border-color: #cc4444; color: #ff6666; }
#btn-export { margin-left: auto; color: var(--accent2); border-color: var(--accent2); }
#btn-export:hover { background: var(--accent2); color: #000; }

#timeline-tracks {
  flex: 1;
  overflow: auto;
  position: relative;
}

/* Timeline internals */
.tl-ruler {
  height: 22px;
  position: sticky;
  top: 0;
  background: var(--panel);
  z-index: 10;
  border-bottom: 1px solid var(--border);
  position: relative;
  flex-shrink: 0;
}
.tl-tick {
  position: absolute;
  top: 14px;
  width: 1px;
  height: 8px;
  background: var(--border);
}
.tl-tick.major { height: 14px; top: 8px; background: var(--dim); }
.tl-tick.major span {
  position: absolute;
  top: -8px;
  left: 3px;
  font-size: 9px;
  color: var(--dim);
  white-space: nowrap;
}

.tl-body { position: relative; }
.tl-playhead {
  position: absolute;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--accent2);
  z-index: 20;
  pointer-events: none;
  left: 34px;
}

.tl-row {
  display: flex;
  height: 26px;
  border-bottom: 1px solid var(--border);
  align-items: stretch;
}
.tl-row.firing { background: #ff660011; }

.tl-ch-label {
  width: 34px;
  min-width: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--dim);
  border-right: 1px solid var(--border);
  position: sticky;
  left: 0;
  background: var(--panel);
  z-index: 5;
}

.tl-track {
  flex: 1;
  position: relative;
  cursor: crosshair;
}
.tl-track:hover { background: #ffffff04; }

.tl-cue {
  position: absolute;
  top: 3px; bottom: 3px;
  background: #3355ff55;
  border: 1px solid #5577ff;
  border-radius: 1px;
  font-size: 9px;
  color: #8899ff;
  overflow: hidden;
  white-space: nowrap;
  padding: 1px 3px;
  cursor: pointer;
  z-index: 3;
}
.tl-cue:hover { background: #cc222255; border-color: #ff4444; color: #ff8888; }

.tl-hint {
  color: var(--dim);
  font-size: 11px;
  padding: 14px 40px;
  font-style: italic;
}

.tl-zoom-ctrl {
  position: sticky;
  left: 0;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 0 6px;
  height: 100%;
  background: var(--panel);
  z-index: 10;
  border-right: 1px solid var(--border);
}

.tl-zoom-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--dim);
  font-size: 13px;
  line-height: 1;
  width: 18px;
  height: 18px;
  cursor: pointer;
  border-radius: 2px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tl-zoom-btn:hover { color: #fff; border-color: #556; }

.tl-zoom-label {
  font-size: 9px;
  color: var(--dim);
  min-width: 28px;
  text-align: center;
}

.tl-waveform-row {
  display: flex;
  height: 28px;
  border-bottom: 1px solid var(--border);
  align-items: stretch;
}

.tl-waveform-track {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: default;
}
.tl-waveform-track:hover { background: transparent; }