/* ============================================================
   tasks.css — Background Tasks Panel (Mark 1.4)
   Cowork/Copilot-style task dashboard.
   ============================================================ */

#bgTasksModal {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--bg-inset) 70%, transparent);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  backdrop-filter: blur(4px);
}

#bgTasksPanel {
  width: 90vw;
  max-width: 880px;
  max-height: 86vh;
  background: var(--bg-card);
  border: 1px solid var(--border-cut, var(--border));
  border-radius: var(--radius-md, 6px);
  box-shadow: 0 20px 60px color-mix(in srgb, var(--bg-inset) 80%, transparent), var(--glow-md, 0 0 32px color-mix(in srgb, var(--accent) 30%, transparent));
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#bgTasksHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-cut);
  background: var(--bg-inset);
  flex-shrink: 0;
}
#bgTasksHeader h2 {
  font-family: var(--font-head, var(--font-sans));
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--red-core, var(--accent-text));
  text-shadow: none;
  margin: 0;
}
#bgTasksCloseBtn {
  background: transparent;
  border: 1px solid var(--border-cut);
  color: var(--text-hot, var(--accent-text));
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm, 2px);
  cursor: pointer;
  font-size: 14px;
}
#bgTasksCloseBtn:hover {
  border-color: var(--red-core);
  color: var(--red-core);
}

.tpBody {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex: 1;
}
.tpList {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

/* ── Empty state ── */
.tpEmpty {
  padding: 40px 20px;
  text-align: center;
}
.tpEmptyIcon {
  font-size: 36px;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 10px var(--red-core));
}
.tpEmptyTitle {
  color: var(--text);
  font-size: 14px;
  margin-bottom: 4px;
}
.tpEmptyHint {
  color: var(--text-2);
  font-size: 11px;
}

/* ── Task cards ── */
.tpTaskCard {
  background: var(--bg-abyss);
  border: 1px solid var(--border-cut);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.tpTaskCard:hover {
  border-color: var(--border-glow, var(--border-strong));
}
.tpTaskCard.expanded {
  border-color: var(--red-core);
  box-shadow: none;
}
.tpTaskRow {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  cursor: pointer;
}
.tpStatusBadge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-size: 10px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.tpTaskMain {
  min-width: 0;
}
.tpTaskTitle {
  color: var(--text-blaze);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tpTaskMeta {
  color: var(--text-muted);
  font-size: 10px;
  margin-top: 2px;
  font-family: var(--font-mono, monospace);
}
.tpTaskActions {
  display: flex;
  gap: 4px;
}
.tpBtn {
  background: transparent;
  border: 1px solid var(--border-cut);
  color: var(--text-hot);
  padding: 4px 8px;
  font-size: 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all 0.15s;
  white-space: nowrap;
}
.tpBtn:hover {
  border-color: var(--red-core);
  color: var(--red-core);
}
.tpBtnPrimary {
  background: var(--red-core);
  color: var(--bg-void);
  border-color: var(--red-core);
}
.tpBtnPrimary:hover {
  background: var(--red-hot);
  color: var(--bg-void);
}
.tpBtnDel:hover {
  border-color: var(--accent-border);
  color: var(--accent-text);
}

/* ── Expanded detail ── */
.tpTaskDetail {
  padding: 12px 14px 14px;
  border-top: 1px solid var(--border-cut);
  background: color-mix(in srgb, var(--bg-inset) 30%, transparent);
  font-size: 12px;
}
.tpDetailDesc {
  color: var(--text-blaze);
  margin-bottom: 8px;
  line-height: 1.5;
}
.tpDetailDesc em {
  color: var(--text-muted);
  font-style: normal;
  margin-right: 4px;
}
.tpDetailError {
  background: rgba(255, 68, 68, 0.1);
  border: 1px solid rgba(255, 68, 68, 0.4);
  color: var(--accent-text);
  padding: 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-size: 11px;
}
.tpDetailNote {
  background: rgba(255, 200, 0, 0.08);
  border: 1px solid rgba(255, 200, 0, 0.3);
  color: var(--warning);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-size: 11px;
}
.tpHint {
  color: var(--text-muted);
  font-style: italic;
  font-size: 11px;
  padding: 4px 0;
}

/* ── Steps ── */
.tpStepsContainer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}
.tpStep {
  border-left: 2px solid var(--border-cut);
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.tpStep-running {
  border-left-color: var(--success);
  background: rgba(76, 255, 76, 0.05);
  animation: tpRunningPulse 2s ease-in-out infinite;
}
@keyframes tpRunningPulse {
  0%, 100% { background: rgba(76, 255, 76, 0.05); }
  50% { background: rgba(76, 255, 76, 0.15); }
}
.tpStep-done {
  border-left-color: var(--red-core);
}
.tpStep-error {
  border-left-color: var(--accent-border);
}
.tpStepHeader {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
}
.tpStepIcon {
  font-weight: 600;
}
.tpStepNum {
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.tpStepTitle {
  flex: 1;
  color: var(--text-blaze);
}
.tpStepDur {
  color: var(--text-muted);
  font-size: 10px;
  font-family: var(--font-mono);
}
.tpStepDesc {
  color: var(--text-muted);
  font-size: 11px;
  margin-top: 3px;
  margin-left: 22px;
  line-height: 1.4;
}
.tpStepOutput,
.tpStepThinking {
  margin-top: 6px;
  margin-left: 22px;
}
/* Reasoning is secondary to the output it sits under: same shape, quieter
   label, so a step reads as one result with its working folded behind it. */
.tpStepThinking summary {
  font-size: 10px;
  color: var(--text-3);
  cursor: pointer;
  user-select: none;
}
.tpStepThinking summary:hover {
  color: var(--text-2);
}
.tpStepThinking pre {
  margin: 6px 0 0;
  padding: 8px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-family: var(--font-mono-stack);
  font-size: 11px;
  color: var(--text-2);
  white-space: pre-wrap;
  max-height: 240px;
  overflow-y: auto;
}
.tpStepOutput summary {
  font-size: 10px;
  color: var(--red-core);
  cursor: pointer;
  user-select: none;
}
.tpStepOutput summary:hover {
  text-decoration: underline;
}
.tpStepOutput pre {
  margin: 6px 0 0;
  padding: 8px;
  background: var(--bg-void);
  border: 1px solid var(--border-cut);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-blaze);
  overflow-x: auto;
  white-space: pre-wrap;
  max-height: 320px;
  overflow-y: auto;
}

/* ── Final result ── */
.tpFinalResult {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-cut);
}
.tpFinalResult summary {
  font-size: 11px;
  color: var(--red-core);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.tpFinalResult pre {
  margin: 8px 0 0;
  padding: 10px;
  background: var(--bg-void);
  border: 1px solid var(--red-core);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-blaze);
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 400px;
  overflow-y: auto;
}

/* ── Activity log ── */
.tpLog {
  margin-top: 10px;
}
.tpLog summary {
  font-size: 10px;
  color: var(--text-muted);
  cursor: pointer;
}
.tpLogLine {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  padding: 2px 0;
  border-bottom: 1px dotted rgba(255, 255, 255, 0.05);
}
.tpLogTime {
  color: var(--red-deep, var(--accent-text));
  margin-right: 6px;
}

/* ── Create form ── */
.tpCreateForm {
  border-top: 1px solid var(--border-cut);
  padding: 14px;
  background: var(--bg-abyss);
  flex-shrink: 0;
}
.tpCreateHeader {
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--red-core);
  margin-bottom: 8px;
}
.tpCreateForm textarea {
  width: 100%;
  min-height: 70px;
  background: var(--bg-void);
  border: 1px solid var(--border-cut);
  border-radius: var(--radius-sm);
  color: var(--text-blaze);
  padding: 8px 10px;
  font-family: var(--font-body);
  font-size: 12px;
  resize: vertical;
  outline: none;
}
.tpCreateForm textarea:focus {
  border-color: var(--red-core);
}
.tpCreateRow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.tpFieldLabel {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.tpCheck {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-blaze);
  cursor: pointer;
}
.tpCheck input {
  accent-color: var(--red-core);
}
.tpCreateForm select,
.tpCreateForm input[type="text"],
.tpCreateForm input[type="datetime-local"] {
  background: var(--bg-void);
  border: 1px solid var(--border-cut);
  border-radius: var(--radius-sm);
  color: var(--text-blaze);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
}
.tpCreateForm input[type="text"] {
  flex: 1;
  min-width: 200px;
}
.tpSubmitBtn {
  margin-top: 10px;
  padding: 8px 20px;
  background: var(--red-core);
  color: var(--bg-void);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: all 0.15s;
}
.tpSubmitBtn:hover:not(:disabled) {
  background: var(--red-hot);
  box-shadow: var(--glow-sm);
}
.tpSubmitBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Toast notifications ── */
#taskToastHost {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.taskToast {
  background: var(--bg-panel);
  border: 1px solid var(--red-core);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--text-blaze);
  font-size: 12px;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--bg-inset) 60%, transparent), var(--glow-sm);
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: auto;
  cursor: pointer;
  max-width: 320px;
}
.taskToast.show {
  opacity: 1;
  transform: translateX(0);
}
.taskToast:hover {
  background: var(--bg-elevated);
}
.taskToast-ok {
  border-color: var(--success);
}
.taskToast-err {
  border-color: var(--accent-border);
}
.taskToast-info {
  border-color: var(--info);
}

/* ── Mobile ── */
@media (max-width: 700px) {
  #bgTasksPanel {
    width: 95vw;
    max-height: 92vh;
  }
  .tpTaskRow {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .tpTaskActions {
    justify-content: flex-end;
  }
}