/* ========================================
   DESIGN SYSTEM
   ======================================== */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-elevated: #141414;
  --border: #2a2a2a;
  --border-subtle: #1f1f1f;
  --text-primary: #e0e0e0;
  --text-secondary: #888888;
  --text-tertiary: #555555;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-dim: rgba(59, 130, 246, 0.15);
  --success: #22c55e;
  --success-dim: rgba(34, 197, 94, 0.15);
  --warning: #eab308;
  --warning-dim: rgba(234, 179, 8, 0.15);
  --error: #ef4444;
  --error-dim: rgba(239, 68, 68, 0.15);
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
  --transition: 150ms ease;
}

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

::selection {
  background: var(--accent);
  color: #fff;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ========================================
   LAYOUT
   ======================================== */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ---- Top bar ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-title {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.topbar-title span {
  color: var(--accent);
}

.topbar-nav {
  display: flex;
  gap: 2px;
}

.topbar-nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.topbar-nav a:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.topbar-nav a.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-tertiary);
  transition: background var(--transition);
}

.status-dot.connected {
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
}

.status-dot.connecting {
  background: var(--warning);
  animation: pulse-dot 1.5s ease-in-out infinite;
}

.status-dot.error {
  background: var(--error);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ---- Main content ---- */
.main-content {
  flex: 1;
  overflow: hidden;
}

/* ========================================
   VIEW: DASHBOARD + CHAT
   ======================================== */
.view-dashboard {
  display: flex;
  height: 100%;
}

/* ---- Chat pane ---- */
.chat-pane {
  width: 380px;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: var(--bg-secondary);
}

.chat-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 12px;
}

.chat-empty svg {
  opacity: 0.3;
  margin-bottom: 4px;
}

.msg {
  max-width: 95%;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.55;
  word-break: break-word;
}

.msg-user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.msg-assistant {
  align-self: flex-start;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-bottom-left-radius: 2px;
  border: 1px solid var(--border-subtle);
}

.msg-system {
  align-self: center;
  background: transparent;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 8px;
}

.msg-clarification {
  align-self: flex-start;
  background: var(--warning-dim);
  border: 1px solid rgba(234, 179, 8, 0.3);
  color: var(--text-primary);
  border-bottom-left-radius: 2px;
}

.msg-clarification .clarification-input {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.msg-clarification .clarification-input input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  outline: none;
}

.msg-clarification .clarification-input input:focus {
  border-color: var(--accent);
}

.msg-clarification .clarification-input button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font-mono);
}

.msg-meta {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 4px;
  font-family: var(--font-mono);
}

.msg-user .msg-meta {
  color: rgba(255,255,255,0.5);
}

/* ---- Quick actions ---- */
.chat-quick-actions {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.quick-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 10px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.quick-btn:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--accent);
}

/* ---- Chat input ---- */
.chat-input-area {
  padding: 12px;
  border-top: 1px solid var(--border-subtle);
}

.chat-input-row {
  display: flex;
  gap: 8px;
}

.chat-input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  outline: none;
  resize: none;
  min-height: 40px;
  max-height: 120px;
  line-height: 1.4;
  transition: border-color var(--transition);
}

.chat-input:focus {
  border-color: var(--accent);
}

.chat-input::placeholder {
  color: var(--text-tertiary);
}

.chat-send-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  flex-shrink: 0;
}

.chat-send-btn:hover {
  background: var(--accent-hover);
}

.chat-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.chat-send-btn svg {
  width: 18px;
  height: 18px;
}

/* ---- Dashboard pane ---- */
.dashboard-pane {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.section-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
}

/* ---- Employee cards ---- */
.employee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}

.employee-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition);
}

.employee-card:hover {
  border-color: var(--text-tertiary);
}

.employee-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.employee-name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.employee-status {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.employee-status.idle {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
}

.employee-status.working {
  background: var(--success-dim);
  color: var(--success);
  animation: pulse-status 2s ease-in-out infinite;
}

.employee-status.blocked {
  background: var(--warning-dim);
  color: var(--warning);
  animation: pulse-status 1.5s ease-in-out infinite;
}

.employee-status.error {
  background: var(--error-dim);
  color: var(--error);
}

@keyframes pulse-status {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.employee-task {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.employee-activity {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---- Task list ---- */
.task-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition);
}

.task-item:hover {
  border-color: var(--border);
}

.task-status-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

.task-status-badge.running {
  background: var(--success-dim);
  color: var(--success);
}

.task-status-badge.completed {
  background: var(--accent-dim);
  color: var(--accent);
}

.task-status-badge.failed {
  background: var(--error-dim);
  color: var(--error);
}

.task-status-badge.pending,
.task-status-badge.queued {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
}

.task-desc {
  flex: 1;
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

/* ---- Schedules ---- */
.schedule-table {
  width: 100%;
  border-collapse: collapse;
}

.schedule-table th {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  text-align: left;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
}

.schedule-table td {
  padding: 10px 12px;
  font-size: 13px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.schedule-table tr:last-child td {
  border-bottom: none;
}

.schedule-table .schedule-name {
  font-family: var(--font-mono);
  font-size: 12px;
}

.schedule-table .schedule-cron {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
}

.schedule-table .schedule-next {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

/* Toggle switch */
.toggle {
  position: relative;
  width: 32px;
  height: 18px;
  cursor: pointer;
}

.toggle input {
  display: none;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 9px;
  transition: all var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  left: 2px;
  top: 2px;
  background: var(--text-tertiary);
  border-radius: 50%;
  transition: all var(--transition);
}

.toggle input:checked + .toggle-slider {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(14px);
  background: var(--accent);
}

/* ---- System health bar ---- */
.health-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.health-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.health-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.health-dot.ok { background: var(--success); }
.health-dot.warn { background: var(--warning); }
.health-dot.err { background: var(--error); }

/* ========================================
   VIEW: TERMINAL
   ======================================== */
.view-terminal {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.terminal-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  flex-shrink: 0;
}

.terminal-tab {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 14px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

.terminal-tab:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.terminal-tab.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border-color: var(--border);
}

.terminal-tab .tab-close {
  display: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  line-height: 1;
  color: var(--text-tertiary);
  cursor: pointer;
}

.terminal-tab:hover .tab-close {
  display: flex;
}

.terminal-tab .tab-close:hover {
  background: var(--error-dim);
  color: var(--error);
}

.terminal-tab .tab-kill {
  display: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  line-height: 1;
  color: var(--text-tertiary);
  cursor: pointer;
}

.terminal-tab:hover .tab-kill {
  display: flex;
}

.terminal-tab .tab-kill:hover {
  background: var(--error-dim);
  color: var(--error);
}

.terminal-tab-add {
  font-family: var(--font-mono);
  font-size: 14px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition);
}

.terminal-tab-add:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.terminal-presets {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.preset-btn {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.terminal-container {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.terminal-instance {
  position: absolute;
  inset: 0;
  display: none;
  overflow: hidden;
}

.terminal-instance.active {
  display: block;
}

.terminal-reconnecting {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 10, 0.85);
  z-index: 10;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

/* ========================================
   UTILITY
   ======================================== */
.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 200ms ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 900px) {
  .view-dashboard {
    flex-direction: column;
  }
  .chat-pane {
    width: 100%;
    height: 45vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .dashboard-pane {
    padding: 16px;
  }
  .employee-grid {
    grid-template-columns: 1fr;
  }
}