/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-brand);
  color: white;
}
.btn-primary:hover { background: var(--color-brand-dark); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-brand); color: var(--color-brand); }

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

.btn-danger {
  background: var(--color-error);
  color: white;
}
.btn-danger:hover { opacity: 0.9; }

.btn-sm { padding: 0.375rem 0.75rem; font-size: var(--font-size-xs); }
.btn-lg { padding: 0.75rem 1.5rem; font-size: var(--font-size-base); }
.btn-icon { padding: 0.5rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* === Inputs === */
.input, .textarea, .select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
}
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--color-brand);
  outline: none;
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
}
.input::placeholder { color: var(--color-text-muted); }

.textarea { min-height: 80px; resize: vertical; }

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a0a0b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.form-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}
.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}
.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
}

/* === Cards === */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}
.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* === Badges === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-draft { background: var(--color-status-draft); color: white; }
.badge-scheduled { background: var(--color-status-scheduled); color: white; }
.badge-active { background: var(--color-status-active); color: white; }
.badge-paused { background: var(--color-status-paused); color: white; }
.badge-expired { background: var(--color-status-expired); color: white; }
.badge-archived { background: var(--color-status-archived); color: white; }
.badge-ready { background: var(--color-info); color: white; }
.badge-completed { background: var(--color-success); color: white; }
.badge-disabled { background: var(--color-status-draft); color: white; }

/* === Stats === */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
}
.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}
.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-brand);
  line-height: 1.2;
}
.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

/* === Tabs === */
.tabs {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tab {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.tab:hover { color: var(--color-text); }
.tab.active {
  color: var(--color-brand);
  border-bottom-color: var(--color-brand);
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.modal-overlay.visible { opacity: 1; visibility: visible; }
.modal {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform var(--transition-base);
}
.modal-overlay.visible .modal { transform: scale(1); }
.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-lg);
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

/* === Empty state === */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  color: var(--color-text-secondary);
}
.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}
.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

/* === Toast / Notifications === */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.toast {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  max-width: 360px;
}
.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-error); }
.toast-info { border-left: 3px solid var(--color-info); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* === Loading === */
.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-brand);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  gap: var(--space-lg);
}

/* === Utilities === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-brand { color: var(--color-brand); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.w-full { width: 100%; }
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* === Responsive container === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container-narrow {
  max-width: var(--max-width-narrow);
}

/* === Responsive breakpoints === */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}