/* ============================================================
   JARVIS Feedback Components — Phase 4C
   Alerts, Inline Messages, Empty States, Loading States.
   Alle Farben via Design-Tokens.
   ============================================================ */

/* ============================================================
   A. ALERT BASIS
   ============================================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3, 12px);
  padding: var(--space-3, 12px) var(--space-4, 16px);
  border-radius: var(--radius-md, 8px);
  border: var(--border-width-thin, 1px) solid transparent;
  border-left-width: var(--border-width-thick, 3px);
  font-size: var(--font-size-sm, 0.875rem);
  line-height: var(--line-height-normal, 1.5);
  margin-bottom: var(--space-5, 20px);
}

.alert__icon {
  flex-shrink: 0;
  margin-top: 1px;
}

.alert__body {
  flex: 1;
  min-width: 0;
}

.alert__title {
  font-weight: var(--font-weight-semibold, 600);
}

.alert__close {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1, 4px);
  color: currentColor;
  opacity: 0.7;
  border-radius: var(--radius-sm, 4px);
  margin-left: var(--space-2, 8px);
  margin-top: -2px;
}

.alert__close:hover {
  opacity: 1;
}

.alert__close:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* ============================================================
   B. ALERT VARIANTEN
   ============================================================ */
.alert--info {
  background: var(--color-status-info-bg, #eef2ff);
  border-color: var(--color-status-info-border, #6366f1);
  color: var(--color-status-info, #4f46e5);
}

.alert--success {
  background: var(--color-status-success-bg, #f0fdf4);
  border-color: var(--color-status-success-border, #22c55e);
  color: var(--color-status-success, #16a34a);
}

.alert--warning {
  background: var(--color-status-warning-bg, #fffbeb);
  border-color: var(--color-status-warning-border, #f59e0b);
  color: var(--color-status-warning, #d97706);
}

.alert--error,
.alert--critical {
  background: var(--color-status-danger-bg, #fef2f2);
  border-color: var(--color-status-danger-border, #ef4444);
  color: var(--color-status-danger, #dc2626);
}

.alert--neutral {
  background: var(--color-status-neutral-bg, #f1f3f5);
  border-color: var(--color-status-neutral-border, #ced4da);
  color: var(--color-status-neutral, #495057);
}

/* ============================================================
   C. INLINE MESSAGE (kompakter Hinweis ohne Icon-Block)
   ============================================================ */
.inline-message {
  font-size: var(--font-size-sm, 0.875rem);
  padding: var(--space-2, 8px) var(--space-3, 12px);
  border-radius: var(--radius-sm, 4px);
  border-left: var(--border-width-thick, 3px) solid currentColor;
  margin-bottom: var(--space-4, 16px);
}

.inline-message--info    { color: var(--color-status-info, #4f46e5);    background: var(--color-status-info-bg, #eef2ff); }
.inline-message--success { color: var(--color-status-success, #16a34a); background: var(--color-status-success-bg, #f0fdf4); }
.inline-message--warning { color: var(--color-status-warning, #d97706); background: var(--color-status-warning-bg, #fffbeb); }
.inline-message--error   { color: var(--color-status-danger, #dc2626);  background: var(--color-status-danger-bg, #fef2f2); }
.inline-message--neutral { color: var(--color-status-neutral, #495057); background: var(--color-status-neutral-bg, #f1f3f5); }

/* ============================================================
   D. EMPTY STATE
   ============================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-12, 48px) var(--space-8, 32px);
  color: var(--color-text-secondary, #495057);
}

.empty-state__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl, 16px);
  background: var(--color-bg-sunken, #e9ecef);
  color: var(--color-text-tertiary, #868e96);
  margin-bottom: var(--space-5, 20px);
}

.empty-state__title {
  font-size: var(--font-size-lg, 1.125rem);
  font-weight: var(--font-weight-semibold, 600);
  color: var(--color-text-primary, #1a1d21);
  margin: 0 0 var(--space-2, 8px);
}

.empty-state__description {
  font-size: var(--font-size-md, 1rem);
  color: var(--color-text-secondary, #495057);
  max-width: 480px;
  margin: 0 0 var(--space-6, 24px);
  line-height: var(--line-height-relaxed, 1.625);
}

.empty-state__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3, 12px);
  justify-content: center;
}

/* ============================================================
   E. LOADING STATE
   ============================================================ */
.loading-state {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  padding: var(--space-6, 24px);
  color: var(--color-text-secondary, #495057);
  font-size: var(--font-size-sm, 0.875rem);
}

.loading-spinner {
  display: inline-block;
  flex-shrink: 0;
  border-radius: 50%;
  border: 2px solid var(--color-border-default, #dee2e6);
  border-top-color: var(--color-action-primary, #6366f1);
  animation: spin 0.7s linear infinite;
}

.loading-state--sm .loading-spinner { width: 16px; height: 16px; }
.loading-state--md .loading-spinner { width: 24px; height: 24px; }
.loading-state--lg .loading-spinner { width: 32px; height: 32px; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-state__text {
  line-height: var(--line-height-normal, 1.5);
}

/* ============================================================
   F. DARK MODE
   ============================================================ */
@media (prefers-color-scheme: dark) {
  .alert--info    { background: rgba(79, 70, 229, 0.15); }
  .alert--success { background: rgba(22, 163, 74, 0.15); }
  .alert--warning { background: rgba(217, 119, 6, 0.15); }
  .alert--error,
  .alert--critical { background: rgba(220, 38, 38, 0.15); }
  .alert--neutral { background: rgba(73, 80, 87, 0.15); color: var(--color-text-secondary, #adb5bd); }

  .empty-state__icon {
    background: var(--color-bg-sunken, #2b3035);
    color: var(--color-text-tertiary, #868e96);
  }

  .empty-state__title {
    color: var(--color-text-primary, #f1f3f5);
  }

  .empty-state__description {
    color: var(--color-text-secondary, #adb5bd);
  }

  .loading-state {
    color: var(--color-text-secondary, #adb5bd);
  }

  .loading-spinner {
    border-color: var(--color-border-default, #343a40);
    border-top-color: var(--color-action-primary, #6366f1);
  }
}

[data-theme="dark"] .empty-state__title {
  color: var(--color-text-primary, #f1f3f5);
}

[data-theme="dark"] .empty-state__description,
[data-theme="dark"] .loading-state {
  color: var(--color-text-secondary, #adb5bd);
}

/* ============================================================
   G. REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .loading-spinner,
  .btn--loading::before {
    animation-duration: 0.01ms !important;
  }
}