/* ==========================================================================
   R2Art JSON Diff — UI Components & Utilities
   ========================================================================== */

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 5px 12px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.2;
}

.btn-sm {
  padding: 3px 8px;
  font-size: 0.76rem;
}

.btn-primary {
  background-color: var(--primary-clay);
  color: #FFFFFF;
  border-color: var(--primary-clay);
}
.btn-primary:hover {
  background-color: var(--primary-clay-hover);
  border-color: var(--primary-clay-hover);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--bg-surface-alt);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background-color: var(--bg-surface-alt);
  color: var(--text-primary);
}

/* Badge System */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.badge-added {
  background-color: var(--diff-added-bg);
  color: var(--diff-added-text);
  border: 1px solid var(--diff-added-border);
}

.badge-removed {
  background-color: var(--diff-removed-bg);
  color: var(--diff-removed-text);
  border: 1px solid var(--diff-removed-border);
}

.badge-modified {
  background-color: var(--diff-modified-bg);
  color: var(--diff-modified-text);
  border: 1px solid var(--diff-modified-border);
}

.badge-neutral {
  background-color: var(--bg-surface-alt);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* Statistics Counter Bar */
.stats-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  padding: 0 0.5rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
}

/* Tree Delta Menu & Filter Pills */
.tree-delta-title-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--primary-clay-light);
  color: var(--primary-clay);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-weight: 700;
  font-size: 0.82rem;
}

.tree-filter-pills {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-surface-alt);
  padding: 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  gap: 2px;
}

.filter-pill {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1.2;
}

.filter-pill:hover {
  color: var(--text-primary);
}

.filter-pill.active {
  background-color: var(--bg-surface);
  color: var(--primary-clay);
  box-shadow: var(--shadow-xs);
}

/* Selector & Input */
.select-field {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  outline: none;
  cursor: pointer;
}

.select-field:focus {
  border-color: var(--primary-clay);
}

/* SSO User Profile Nav Badge */
.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 2px 8px 2px 3px;
  font-size: 0.75rem;
}

.user-avatar-img {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

.user-avatar-fallback {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--primary-clay-light);
  color: var(--primary-clay);
  font-weight: 700;
  display: flex;
  align-items: center;
  justifyContent: center;
  font-size: 10px;
}

.user-role-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: var(--radius-xs);
  background-color: var(--primary-clay-light);
  color: var(--primary-clay);
}

.btn-logout {
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  border-radius: 50%;
  line-height: 1;
  font-size: 11px;
}
.btn-logout:hover {
  color: var(--diff-removed-text);
  background-color: var(--diff-removed-bg);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 38px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

.toast {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideInToast 180ms ease;
}

.toast.toast-success {
  border-left: 4px solid var(--diff-added-text);
}

.toast.toast-error {
  border-left: 4px solid var(--diff-removed-text);
}

@keyframes slideInToast {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal Overlay & Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(20, 19, 17, 0.45);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.96);
  transition: transform var(--transition-normal);
}

.modal-backdrop.open .modal-dialog {
  transform: scale(1);
}

.modal-header {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justifyContent: space-between;
  background-color: var(--bg-surface-elevated);
}

.modal-title {
  font-size: 1rem;
  font-weight: 700;
}

.modal-body {
  padding: 18px;
  overflow-y: auto;
  font-size: 0.85rem;
}

.modal-footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background-color: var(--bg-surface-elevated);
}