/* style.css - Main application styles
 * Loading overlay, notifications/toasts, generic utility classes.
 */

/* ===== Loading Overlay ===== */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: var(--z-loading);
  flex-direction: column;
  gap: var(--spacing-lg);
}

.loading-overlay.active {
  display: flex;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-text {
  font-family: var(--font-family);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: white;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== Notification / Toast Styles ===== */

.toast-container {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 280px;
  max-width: 420px;
  animation: toast-slide-in 0.3s ease forwards;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.toast.toast-exit {
  animation: toast-slide-out 0.3s ease forwards;
}

.toast-success {
  background: var(--color-success);
  color: white;
}

.toast-error {
  background: var(--color-danger);
  color: white;
}

.toast-warning {
  background: var(--color-warning);
  color: white;
}

.toast-info {
  background: var(--color-info);
  color: white;
}

.toast-close {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: var(--text-lg);
  padding: 0;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.toast-close:hover {
  opacity: 1;
}

@keyframes toast-slide-in {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toast-slide-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* ===== Modal Styles ===== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: var(--z-modal-backdrop);
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--color-background-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  z-index: var(--z-modal);
  color: var(--color-text-primary);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-header h2 {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--text-xl);
  cursor: pointer;
  color: var(--color-text-muted);
  padding: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-text-primary);
}

.modal-body {
  margin-bottom: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
}

/* ===== Context Menu ===== */

.context-menu {
  position: fixed;
  background: var(--color-background-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: var(--z-dropdown);
  min-width: 160px;
  padding: var(--spacing-xs) 0;
}

.context-menu-item {
  padding: var(--spacing-sm) var(--spacing-lg);
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.context-menu-item:hover {
  background: var(--color-background-hover);
}

.context-menu-separator {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--spacing-xs) 0;
}

/* ===== Generic Utility Classes ===== */

/* Flex utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.flex-1 {
  flex: 1;
}

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

.gap-xs {
  gap: var(--spacing-xs);
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

/* Spacing utilities */
.m-0 { margin: 0; }
.p-0 { padding: 0; }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.ml-sm { margin-left: var(--spacing-sm); }
.mr-sm { margin-right: var(--spacing-sm); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* Text utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.font-bold { font-weight: var(--font-bold); }
.font-semibold { font-weight: var(--font-semibold); }

/* Width utilities */
.w-full { width: 100%; }
.w-auto { width: auto; }

/* Truncate text */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Scrollbar Styling (light mode default) */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-background-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Focus visible */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--color-primary);
  color: white;
}

/* Progress bar */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-background-secondary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: width var(--transition-slow);
}

/* Badge / Tag */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--spacing-sm);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-xl);
  line-height: var(--leading-normal);
}

.badge-primary {
  background: var(--color-primary);
  color: white;
}

.badge-success {
  background: var(--color-success);
  color: white;
}

.badge-danger {
  background: var(--color-danger);
  color: white;
}

.badge-warning {
  background: var(--color-warning);
  color: white;
}

/* Status indicator dot */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot-success { background: var(--color-success); }
.status-dot-danger { background: var(--color-danger); }
.status-dot-warning { background: var(--color-warning); }
.status-dot-info { background: var(--color-info); }