/* ============================================================================
   Brain-5D Control Panel CSS

   Modern, dark-themed control panel with enhanced readability,
   responsive layout, and visual feedback for system states.

   Design Tokens:
   - Primary: #4a7cf7
   - Success: #24b46e
   - Warning: #e6aa28
   - Danger: #dc3545
   - Info: #17a2b8
   - Background: rgba(12, 18, 28, 0.92)
   - Border: rgba(255, 255, 255, 0.14)
   ============================================================================ */

/* ============================================================================
   Design Tokens (CSS Variables)
   ============================================================================ */

:root {
  --color-primary: #4a7cf7;
  --color-primary-hover: #6a9cff;
  --color-success: #24b46e;
  --color-success-hover: #2dd485;
  --color-warning: #e6aa28;
  --color-warning-hover: #f0c040;
  --color-danger: #dc3545;
  --color-danger-hover: #f05060;
  --color-info: #17a2b8;
  --color-info-hover: #28b8d0;
  --color-secondary: rgba(255, 255, 255, 0.1);
  --color-secondary-hover: rgba(255, 255, 255, 0.2);

  --bg-card: rgba(12, 18, 28, 0.92);
  --bg-input: rgba(0, 0, 0, 0.22);
  --bg-hover: rgba(255, 255, 255, 0.055);

  --border-color: rgba(255, 255, 255, 0.14);
  --border-light: rgba(255, 255, 255, 0.08);

  --radius-card: 16px;
  --radius-medium: 10px;
  --radius-small: 8px;
  --radius-pill: 999px;

  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
  --shadow-focus: 0 0 0 3px rgba(74, 124, 247, 0.3);

  --font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;

  --transition-fast: 0.15s ease;
  --transition-medium: 0.25s ease;
}

/* ============================================================================
   Base Card
   ============================================================================ */

.control-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
  font-family: var(--font-family);
  color: #e8edf5;
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.control-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

/* ============================================================================
   Header
   ============================================================================ */

.control-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.control-card__title-group {
  flex: 1;
  min-width: 180px;
}

.control-card__title-group h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.control-card__subtitle {
  margin: 2px 0 0;
  font-size: 0.82rem;
  opacity: 0.65;
  line-height: 1.4;
}

/* ============================================================================
   Runtime State Badge
   ============================================================================ */

.runtime-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(120, 140, 170, 0.2);
  color: #a8b8d0;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.runtime-state::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.7;
  transition: background var(--transition-fast);
}

/* State variants */
.runtime-state[data-mode="running"] {
  background: rgba(36, 180, 110, 0.25);
  color: #4ddb8a;
}

.runtime-state[data-mode="running"]::before {
  animation: pulse-running 1.2s ease-in-out infinite;
}

.runtime-state[data-mode="paused"] {
  background: rgba(230, 170, 40, 0.25);
  color: #f0c040;
}

.runtime-state[data-mode="stopped"],
.runtime-state[data-mode="faulted"] {
  background: rgba(220, 70, 70, 0.25);
  color: #f06070;
}

.runtime-state[data-mode="idle"] {
  background: rgba(120, 140, 170, 0.15);
  color: #8899bb;
}

@keyframes pulse-running {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* ============================================================================
   Runtime Metrics
   ============================================================================ */

.runtime-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 16px 0 18px;
}

.runtime-metrics .metric-item {
  padding: 10px 14px;
  border-radius: var(--radius-medium);
  background: var(--bg-hover);
  transition: background var(--transition-fast);
}

.runtime-metrics .metric-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.metric-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.6;
  font-weight: 500;
}

.metric-value {
  display: block;
  margin-top: 2px;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: #e8edf5;
}

/* ============================================================================
   Control Grid - Grouped Controls
   ============================================================================ */

.control-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}

.control-group {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-medium);
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.control-group:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.control-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.control-group__title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.6;
}

.shortcut-hint {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  opacity: 0.4;
  background: rgba(255, 255, 255, 0.06);
  padding: 1px 8px;
  border-radius: 4px;
}

.control-group__body {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Input Labels */
.input-label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 0.7rem;
  font-weight: 500;
  opacity: 0.7;
  flex: 1;
  min-width: 60px;
}

.input-label input {
  width: 100%;
  box-sizing: border-box;
  padding: 6px 10px;
  border-radius: var(--radius-small);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--bg-input);
  color: #e8edf5;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-width: 50px;
}

.input-label input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.input-label input:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

/* ============================================================================
   Buttons
   ============================================================================ */

.control-group button,
.control-grid button:not(.btn-small) {
  min-height: 34px;
  padding: 6px 14px;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.8rem;
  font-family: var(--font-family);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.control-group button:hover,
.control-grid button:not(.btn-small):hover {
  transform: translateY(-1px);
}

.control-group button:active,
.control-grid button:not(.btn-small):active {
  transform: translateY(0px);
}

.control-group button:disabled,
.control-grid button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* Button Variants */
.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.btn-success {
  background: var(--color-success);
  color: white;
}
.btn-success:hover:not(:disabled) {
  background: var(--color-success-hover);
}

.btn-warning {
  background: var(--color-warning);
  color: #1a1a1a;
}
.btn-warning:hover:not(:disabled) {
  background: var(--color-warning-hover);
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}
.btn-danger:hover:not(:disabled) {
  background: var(--color-danger-hover);
}

.btn-info {
  background: var(--color-info);
  color: white;
}
.btn-info:hover:not(:disabled) {
  background: var(--color-info-hover);
}

.btn-secondary {
  background: var(--color-secondary);
  color: #d0d8e8;
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-secondary-hover);
}

/* Small Buttons (for actions row) */
.btn-small {
  min-height: 28px;
  padding: 3px 12px;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.08);
  color: #c0c8d8;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-small:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #e8edf5;
}

.btn-small.undo {
  background: rgba(230, 170, 40, 0.15);
  color: #e6aa28;
}
.btn-small.undo:hover {
  background: rgba(230, 170, 40, 0.25);
}

.btn-small.auto-approval {
  background: rgba(74, 124, 247, 0.15);
  color: var(--color-primary);
}
.btn-small.auto-approval:hover {
  background: rgba(74, 124, 247, 0.25);
}
.btn-small.auto-approval.active {
  background: rgba(36, 180, 110, 0.2);
  color: var(--color-success);
}

/* ============================================================================
   Actions Row (Pause, Snapshot, Stop)
   ============================================================================ */

.actions-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  width: 100%;
}

.actions-row button {
  flex: 1;
  min-width: 70px;
  justify-content: center;
}

.shortcut-hint-inline {
  font-size: 0.55rem;
  opacity: 0.4;
  font-family: var(--font-mono);
  font-weight: 400;
  margin-left: 2px;
}

/* ============================================================================
   Self-Organization Section
   ============================================================================ */

.self-org-section {
  margin-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 12px;
}

.self-org-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 4px 0;
  user-select: none;
  list-style: none;
  gap: 12px;
}

.self-org-summary::-webkit-details-marker {
  display: none;
}

.self-org-summary h3 {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 500;
  color: #c8d0e0;
}

.self-org-summary .badge {
  font-size: 0.68rem;
  padding: 2px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  color: #8899bb;
  font-weight: 500;
}

.self-org-summary .badge.active {
  background: rgba(36, 180, 110, 0.2);
  color: var(--color-success);
}

.self-org-summary .badge.inactive {
  background: rgba(220, 70, 70, 0.2);
  color: var(--color-danger);
}

.self-org-controls {
  display: grid;
  gap: 10px;
  padding: 12px 0 4px;
}

.self-org-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.switch-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  cursor: pointer;
  padding: 4px 0;
}

.switch-line input[type="checkbox"] {
  appearance: none;
  width: 36px;
  height: 20px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.switch-line input[type="checkbox"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.switch-line input[type="checkbox"]::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: white;
  transition: transform var(--transition-fast);
}

.switch-line input[type="checkbox"]:checked::after {
  transform: translateX(16px);
}

.switch-line input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.switch-line__label {
  font-weight: 500;
  color: #d0d8e8;
}

.switch-line__help {
  font-size: 0.7rem;
  opacity: 0.5;
  margin-left: 4px;
}

/* Proposal Line */
.proposal-line {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 8px 12px;
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.proposal-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.5;
  font-weight: 500;
}

.proposal-line strong {
  font-family: var(--font-mono);
  font-weight: 500;
  color: #c8d0e0;
  font-size: 0.85rem;
}

.proposal-time {
  font-size: 0.7rem;
  opacity: 0.4;
  margin-left: auto;
  font-family: var(--font-mono);
}

/* Proposal Actions */
.proposal-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

/* ============================================================================
   Control Message
   ============================================================================ */

.control-message {
  display: block;
  min-height: 1.5em;
  margin-top: 12px;
  padding: 8px 14px;
  border-radius: var(--radius-small);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  color: #8899bb;
}

.control-message[data-kind="info"] {
  border-color: rgba(74, 124, 247, 0.2);
  color: #7aabff;
}

.control-message[data-kind="error"] {
  border-color: rgba(220, 70, 70, 0.3);
  background: rgba(220, 70, 70, 0.08);
  color: #f07080;
}

.control-message[data-kind="success"] {
  border-color: rgba(36, 180, 110, 0.2);
  color: var(--color-success);
}

/* ============================================================================
   Icon Utilities
   ============================================================================ */

.icon {
  font-size: 0.85em;
  line-height: 1;
}

/* ============================================================================
   Responsive Design
   ============================================================================ */

/* Tablets and smaller screens */
@media (max-width: 900px) {
  .control-card {
    padding: 16px 18px;
  }

  .control-grid {
    grid-template-columns: 1fr 1fr;
  }

  .control-group {
    padding: 10px 12px;
  }

  .self-org-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .runtime-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile devices */
@media (max-width: 600px) {
  .control-card {
    padding: 14px;
    border-radius: 12px;
  }

  .control-card__header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .runtime-state {
    align-self: flex-start;
  }

  .control-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .control-group__body {
    flex-wrap: wrap;
  }

  .control-group__body .input-label {
    min-width: 100%;
  }

  .actions-row button {
    flex: 1;
    min-width: 0;
  }

  .runtime-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }

  .runtime-metrics .metric-item {
    padding: 6px 10px;
  }

  .metric-value {
    font-size: 0.95rem;
  }

  .shortcut-hint,
  .shortcut-hint-inline {
    display: none;
  }

  .proposal-line {
    flex-wrap: wrap;
  }

  .proposal-time {
    margin-left: 0;
    width: 100%;
  }

  .self-org-controls {
    gap: 6px;
  }
}

/* Very small screens */
@media (max-width: 380px) {
  .control-card {
    padding: 10px;
  }

  .runtime-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .control-group {
    padding: 8px 10px;
  }

  .actions-row button {
    font-size: 0.7rem;
    padding: 4px 8px;
    min-height: 28px;
  }
}

/* ============================================================================
   Accessibility & Focus States
   ============================================================================ */

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .runtime-state[data-mode="running"]::before {
    animation: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .control-card {
    border-color: rgba(255, 255, 255, 0.3);
  }

  .control-group {
    border-color: rgba(255, 255, 255, 0.15);
  }

  .runtime-state {
    border: 1px solid currentColor;
  }
}