/* ============================================================
   层级化鼓组管理界面
   ============================================================ */

.sm-current-kit-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: #1a1a1a;
  border-radius: 12px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}

.sm-kit-info {
  flex: 1;
}

.sm-kit-name-input {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 4px 0;
  margin-bottom: 8px;
  transition: border-color 0.2s ease;
  width: 300px;
  max-width: 100%;
}

.sm-kit-name-input:focus {
  outline: none;
  border-bottom-color: #666;
}

.sm-kit-name-input.editable {
  border-bottom-color: #666;
  cursor: text;
}

.sm-kit-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

.sm-kit-meta span {
  background: #242424;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.sm-kit-actions {
  display: flex;
  gap: 8px;
}

.sm-kit-channels-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sm-kit-channel {
  background: #1a1a1a;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.2s ease;
}

.sm-kit-channel:hover {
  border-color: #444;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.sm-kit-channel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.sm-kit-channel-info {
  flex: 1;
}

.sm-kit-channel-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sm-kit-channel-name input {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: 1px solid #666;
  border-radius: 4px;
  padding: 4px 8px;
  width: 200px;
}

.sm-kit-channel-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.sm-kit-channel-actions {
  display: flex;
  gap: 8px;
}

.sm-kit-layer-controls {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.sm-kit-layer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.sm-kit-layer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.sm-kit-layer-count {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sm-kit-layer-count input {
  width: 60px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #242424;
  color: var(--text);
  text-align: center;
}

.sm-kit-layer-add {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #242424;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sm-kit-layer-add:hover {
  border-color: #444;
  background: #2a2a2a;
}

.sm-kit-layers {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sm-kit-layer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #242424;
}

.sm-kit-layer-info {
  flex: 1;
}

.sm-kit-layer-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 2px;
}

.sm-kit-layer-samples {
  font-size: 11px;
  color: var(--text-muted);
}

.sm-kit-layer-actions {
  display: flex;
  gap: 6px;
}

.sm-kit-layer-action {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sm-kit-layer-action:hover {
  border-color: #444;
  color: var(--text);
  background: #2a2a2a;
}

.sm-kit-layer-action.danger:hover {
  border-color: #d32f2f;
  color: #ff6b6b;
  background: rgba(211, 47, 47, 0.1);
}

.sm-kit-assign-controls {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.sm-kit-assign-header {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.sm-kit-assign-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.sm-kit-assign-select {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #242424;
  color: var(--text);
  font-size: 12px;
}

.sm-kit-assign-btn {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #242424;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sm-kit-assign-btn:hover {
  border-color: #444;
  background: #2a2a2a;
}

.sm-kit-assign-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sm-unassigned-samples {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.sm-unassigned-samples-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.sm-unassigned-samples-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sm-unassigned-sample {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #242424;
  font-size: 12px;
  color: var(--text);
}

.sm-unassigned-sample-name {
  flex: 1;
}

.sm-unassigned-sample-action {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sm-unassigned-sample-action:hover {
  border-color: #444;
  color: var(--text);
  background: #2a2a2a;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .sm-current-kit-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .sm-kit-name-input {
    width: 100%;
  }

  .sm-kit-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  .sm-kit-channel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .sm-kit-layer-controls {
    margin-top: 12px;
    padding-top: 12px;
  }

  .sm-kit-assign-row {
    flex-direction: column;
    align-items: stretch;
  }

  .sm-kit-assign-select {
    width: 100%;
  }
}