/* ==========================================================================
   UI/UX Core Components & Styles - TestGenAI (MVP Real)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Skeleton Shimmer Loaders
   -------------------------------------------------------------------------- */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 25%,
    rgba(255, 255, 255, 0.12) 37%,
    rgba(255, 255, 255, 0.04) 63%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--radius-sm);
  display: inline-block;
}

[data-theme="light"] .skeleton {
  background: linear-gradient(
    90deg,
    rgba(15, 23, 42, 0.06) 25%,
    rgba(15, 23, 42, 0.14) 37%,
    rgba(15, 23, 42, 0.06) 63%
  );
  background-size: 200% 100%;
}

.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
  border-radius: 4px;
}

.skeleton-title {
  height: 22px;
  width: 60%;
  margin-bottom: 12px;
}

.skeleton-card {
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   2. Quick Filter Pill Tabs (Casos de prueba)
   -------------------------------------------------------------------------- */
.quick-filter-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.quick-filter-tab {
  background:var(--bg-soft);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 7px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.quick-filter-tab:hover {
  background:var(--bg-soft);
  color: var(--text-primary);
}

.quick-filter-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
}

.quick-filter-tab .badge-count {
  font-size: 0.72rem;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background:var(--bg-panel);
}

/* --------------------------------------------------------------------------
   3. Diff Viewer Modal (Historial de Auditoría de Caso de Prueba)
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-card.modal-lg {
  max-width: 900px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
}

.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 14px;
}

.diff-pane {
  background:var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
}

.diff-pane-title {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

ins.diff-add {
  background: rgba(16, 185, 129, 0.25);
  color:var(--text-success);
  text-decoration: none;
  border-radius: 2px;
  padding: 1px 2px;
}

del.diff-del {
  background: rgba(239, 68, 68, 0.25);
  color:var(--text-error);
  text-decoration: line-through;
  border-radius: 2px;
  padding: 1px 2px;
}

/* --------------------------------------------------------------------------
   4. BDD / Gherkin Highlight Box
   -------------------------------------------------------------------------- */
.bdd-box {
  background:var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--text-primary);
}

.bdd-keyword {
  color: var(--cyan);
  font-weight: 700;
}

.bdd-scenario {
  color: var(--primary-light, #818cf8);
  font-weight: 700;
}

.badge-version {
  font-size: 0.7rem;
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-light, #818cf8);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  vertical-align: middle;
}