/* ── Oscilloscope panel ─────────────────────────────────────────────────── */

.osc-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #1e1e1e;
  border-top: 1px solid #333;
  font-family: 'Consolas', 'Menlo', monospace;
  font-size: 12px;
  color: #ccc;
  overflow: hidden;
}

/* ── Header ── */
.osc-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  background: #252526;
  border-bottom: 1px solid #333;
  flex-shrink: 0;
  flex-wrap: wrap;
  min-height: 32px;
}

.osc-title {
  color: #cccccc;
  font-weight: 600;
  font-size: 12px;
  white-space: nowrap;
  margin-right: 4px;
}

.osc-btn {
  background: transparent;
  border: 1px solid #555;
  color: #ccc;
  padding: 2px 8px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  white-space: nowrap;
  transition:
    border-color 0.15s,
    background 0.15s;
}

.osc-btn:hover {
  border-color: #007acc;
  color: #fff;
}

.osc-btn-active {
  background: #0e3a5a;
  border-color: #007acc;
  color: #4fc3f7;
}

.osc-btn-danger {
  border-color: #7a0000;
  color: #ff6b6b;
}

.osc-btn-danger:hover {
  background: #3a0000;
  border-color: #ff6b6b;
}

.osc-label {
  color: #888;
  font-size: 11px;
  white-space: nowrap;
}

.osc-select {
  background: #1e1e1e;
  border: 1px solid #444;
  color: #ccc;
  padding: 2px 4px;
  border-radius: 3px;
  font-size: 11px;
  outline: none;
  cursor: pointer;
}

.osc-select:focus {
  border-color: #007acc;
}

/* ── Channel picker dropdown ── */
.osc-picker-wrap {
  position: relative;
}

.osc-picker-dropdown {
  /* position/left/bottom/z-index set via inline style (portal) */
  background: #252526;
  border: 1px solid #555;
  border-radius: 4px;
  padding: 4px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  min-width: 200px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
}

/* Multi-board picker layout */
.osc-picker-multiboard {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  min-width: 260px;
  max-height: 320px;
  overflow: hidden;
}

.osc-picker-board-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  border-bottom: 1px solid #3a3a3a;
  padding-bottom: 6px;
}

.osc-picker-board-tab {
  background: #2d2d2d;
  border: 1px solid #444;
  color: #999;
  padding: 2px 8px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  font-family: inherit;
  transition:
    background 0.1s,
    color 0.1s;
}

.osc-picker-board-tab:hover {
  background: #383838;
  color: #ccc;
}

.osc-picker-board-tab.active {
  background: #0e3a5a;
  border-color: #007acc;
  color: #4fc3f7;
}

.osc-picker-board-label {
  font-size: 10px;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.osc-picker-pins {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  overflow-y: auto;
  flex: 1;
}

.osc-pin-btn {
  background: #2d2d2d;
  border: 1px solid #444;
  color: #ccc;
  padding: 3px 6px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  text-align: center;
  transition:
    background 0.1s,
    border-color 0.1s;
}

.osc-pin-btn:hover {
  background: #0e3a5a;
  border-color: #007acc;
  color: #fff;
}

.osc-pin-btn-active {
  background: #1a3a1a;
  border-color: #00ff41;
  color: #00ff41;
  cursor: default;
}

/* ── Waveform area ── */
.osc-waveforms {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  background: #0a0a0a;
}

.osc-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: #555;
  font-size: 12px;
  flex-direction: column;
  gap: 8px;
}

.osc-channel-row {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid #1a1a1a;
  height: 60px;
}

.osc-channel-label {
  width: 72px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4px 6px;
  background: #141414;
  border-right: 1px solid #222;
  gap: 2px;
}

.osc-channel-board {
  font-size: 9px;
  color: #666;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  max-width: 100%;
}

.osc-channel-name {
  font-size: 11px;
  font-weight: 700;
}

.osc-channel-remove {
  background: transparent;
  border: none;
  color: #555;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0;
  transition: color 0.1s;
}

.osc-channel-remove:hover {
  color: #ff6b6b;
}

.osc-channel-canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.osc-channel-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ── Time ruler ── */
.osc-ruler {
  height: 20px;
  flex-shrink: 0;
  background: #141414;
  border-top: 1px solid #222;
  position: relative;
}

.osc-ruler-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ── Trigger status badge ───────────────────────────────────────────────── */
.osc-trigger-status {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid currentColor;
}

.osc-trigger-status-idle {
  color: #6b7280;
}

.osc-trigger-status-armed {
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  animation: osc-pulse-armed 1.5s ease-in-out infinite;
}

.osc-trigger-status-triggered {
  color: #22c55e;
  background: rgba(34, 197, 94, 0.1);
}

.osc-trigger-status-captured {
  color: #ff9800;
  background: rgba(255, 152, 0, 0.15);
  border-color: #ff9800;
}

@keyframes osc-pulse-armed {
  0%, 100% { opacity: 0.6; }
  50%      { opacity: 1; }
}