/* ==========================================================================
   Components — Reusable Component Styles
   ========================================================================== */

/* Button
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-family-primary);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--easing-default),
    border-color var(--duration-fast) var(--easing-default),
    color var(--duration-fast) var(--easing-default),
    box-shadow var(--duration-fast) var(--easing-default);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: var(--opacity-disabled);
  cursor: not-allowed;
  pointer-events: none;
}

/* Button sizes */
.btn--sm {
  height: 36px;
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn--md {
  height: 44px;
  padding: 12px 20px;
  font-size: var(--font-size-base);
}

.btn--lg {
  height: 52px;
  padding: 14px 24px;
  font-size: 15px;
}

/* Button variants */
.btn--primary {
  background: var(--color-primary-600);
  color: var(--color-text-inverse);
  border-color: transparent;
}

.btn--primary:hover {
  background: var(--color-primary-700);
}

.btn--primary:active {
  background: var(--color-primary-800);
}

.btn--secondary {
  background: var(--color-bg-white);
  color: var(--color-gray-700);
  border-color: var(--color-gray-300);
}

.btn--secondary:hover {
  background: var(--color-gray-50);
}

.btn--secondary:active {
  background: var(--color-gray-100);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.btn--outline:hover {
  background: var(--color-primary-50);
}

.btn--ghost {
  background: transparent;
  color: var(--color-gray-700);
  border-color: transparent;
}

.btn--ghost:hover {
  background: var(--color-gray-100);
}

.btn--danger {
  background: var(--color-danger-600);
  color: var(--color-text-inverse);
  border-color: transparent;
}

.btn--danger:hover {
  background: var(--color-danger-700);
}

.btn--success {
  background: var(--color-success-600);
  color: var(--color-text-inverse);
  border-color: transparent;
}

.btn--success:hover {
  background: var(--color-success-700);
}

/* Button full width */
.btn--block {
  width: 100%;
}

/* Button icon */
.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn__icon--trailing {
  order: 1;
}

/* Button loading */
.btn--loading {
  position: relative;
  pointer-events: none;
}

.btn--loading .btn__text {
  visibility: hidden;
}

.btn--loading .btn__spinner {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: var(--radius-full);
  animation: btn-spin 0.6s linear infinite;
}

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

/* Button icon-only */
.btn--icon {
  padding: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
}

.btn--icon.btn--sm {
  width: 36px;
  height: 36px;
}

.btn--icon.btn--lg {
  width: 52px;
  height: 52px;
}

/* Card
   ========================================================================== */
.card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card--interactive {
  cursor: pointer;
  transition:
    box-shadow var(--duration-normal) var(--easing-default),
    transform var(--duration-normal) var(--easing-default);
}

.card--interactive:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card--interactive:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.card--error {
  border-color: var(--color-danger-500);
}

.card__header {
  padding: var(--spacing-xl);
  padding-bottom: 0;
}

.card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.card__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-gray-500);
}

.card__body {
  padding: var(--spacing-xl);
}

.card__header + .card__body {
  padding-top: var(--spacing-lg);
}

.card__footer {
  padding: var(--spacing-xl);
  padding-top: 0;
}

.card__body + .card__footer {
  padding-top: var(--spacing-lg);
}

.card__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Card empty state */
.card__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  text-align: center;
}

.card__empty-icon {
  width: 48px;
  height: 48px;
  color: var(--color-gray-300);
  margin-bottom: var(--spacing-md);
}

.card__empty-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-xs);
}

.card__empty-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
}

/* Card loading skeleton */
.card--loading .card__body {
  opacity: 0.6;
  pointer-events: none;
}

/* Badge
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  height: 24px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  user-select: none;
}

.badge--success {
  background: var(--color-success-100);
  color: var(--color-success-700);
}

.badge--warning {
  background: var(--color-warning-100);
  color: var(--color-warning-700);
}

.badge--danger {
  background: var(--color-danger-100);
  color: var(--color-danger-700);
}

.badge--info {
  background: var(--color-info-100);
  color: var(--color-info-700);
}

.badge--neutral {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

/* Dot badge */
.badge--dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* Notification badge (count) */
.badge--notification {
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: var(--font-weight-bold);
}

.badge--notification.badge--danger {
  background: var(--color-danger-500);
  color: var(--color-text-inverse);
}

/* Badge icon */
.badge__icon {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* Avatar
   ========================================================================== */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-gray-200);
  color: var(--color-gray-700);
  font-weight: var(--font-weight-semibold);
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
}

.avatar--xs {
  width: 24px;
  height: 24px;
  font-size: 10px;
}

.avatar--sm {
  width: 32px;
  height: 32px;
  font-size: 12px;
}

.avatar--md {
  width: 40px;
  height: 40px;
  font-size: 14px;
}

.avatar--lg {
  width: 48px;
  height: 48px;
  font-size: 16px;
}

.avatar--xl {
  width: 64px;
  height: 64px;
  font-size: 22px;
}

.avatar__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.avatar__icon {
  width: 50%;
  height: 50%;
  color: var(--color-gray-500);
}

/* Avatar status indicator */
.avatar__status {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-white);
}

.avatar__status--online {
  background: var(--color-success-500);
}

.avatar__status--away {
  background: var(--color-warning-500);
}

.avatar__status--busy {
  background: var(--color-danger-500);
}

/* Avatar group */
.avatar-group {
  display: flex;
  align-items: center;
}

.avatar-group .avatar {
  margin-right: -10px;
  border: 2px solid var(--color-bg-white);
}

.avatar-group .avatar:last-child {
  margin-right: 0;
}

.avatar-group__overflow {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  border: 2px solid var(--color-bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600);
  margin-left: -10px;
}

/* Progress
   ========================================================================== */
.progress {
  width: 100%;
}

/* Linear progress */
.progress--linear {
  height: 8px;
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  background: var(--color-primary-500);
  border-radius: var(--radius-full);
  transition: width var(--duration-normal) var(--easing-default);
  position: relative;
}

.progress--success .progress__bar {
  background: var(--color-success-500);
}

.progress--warning .progress__bar {
  background: var(--color-warning-500);
}

.progress--danger .progress__bar {
  background: var(--color-danger-500);
}

/* Indeterminate */
.progress--indeterminate .progress__bar {
  width: 30% !important;
  animation: progress-indeterminate 1.5s ease-in-out infinite;
}

@keyframes progress-indeterminate {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(400%);
  }
}

/* Progress with label */
.progress__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.progress__value {
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-800);
}

/* Circular progress */
.progress--circular {
  width: 64px;
  height: 64px;
  position: relative;
}

.progress__circle {
  transform: rotate(-90deg);
}

.progress__circle-bg {
  fill: none;
  stroke: var(--color-gray-100);
  stroke-width: 6;
}

.progress__circle-bar {
  fill: none;
  stroke: var(--color-primary-500);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--duration-normal) var(--easing-default);
}

.progress__circle-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-800);
}

/* Table
   ========================================================================== */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-base);
}

.table__header {
  background: var(--color-gray-50);
}

.table__header-cell {
  height: 52px;
  padding: 0 16px;
  text-align: left;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-gray-600);
  border-bottom: 1px solid var(--color-gray-200);
  white-space: nowrap;
  user-select: none;
}

.table__header-cell--sortable {
  cursor: pointer;
}

.table__header-cell--sortable:hover {
  color: var(--color-gray-800);
}

.table__sort-icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-left: var(--spacing-xs);
  vertical-align: middle;
  color: var(--color-gray-400);
}

.table__header-cell--asc .table__sort-icon,
.table__header-cell--desc .table__sort-icon {
  color: var(--color-primary-500);
}

.table__row {
  transition: background var(--duration-fast) var(--easing-default);
}

.table__row:hover {
  background: var(--color-gray-50);
}

.table__row--selected {
  background: var(--color-primary-50);
}

.table__cell {
  height: 56px;
  padding: 0 16px;
  color: var(--color-gray-800);
  border-bottom: 1px solid var(--color-gray-200);
  white-space: nowrap;
}

/* Table empty state */
.table__empty {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  color: var(--color-gray-500);
}

/* Table loading */
.table--loading .table__body {
  opacity: 0.5;
  pointer-events: none;
}

/* Table pagination */
.table__pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
}

.table__pagination-info {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-right: var(--spacing-md);
}

.table__pagination-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-bg-white);
  cursor: pointer;
  color: var(--color-gray-600);
  transition: background var(--duration-fast) var(--easing-default);
}

.table__pagination-btn:hover {
  background: var(--color-gray-50);
}

.table__pagination-btn:disabled {
  opacity: var(--opacity-disabled);
  cursor: not-allowed;
}

.table__pagination-btn--active {
  background: var(--color-primary-600);
  color: var(--color-text-inverse);
  border-color: var(--color-primary-600);
}

/* Tabs
   ========================================================================== */
.tabs {
  display: flex;
  gap: 0;
}

.tabs--horizontal {
  flex-direction: row;
  border-bottom: 1px solid var(--color-gray-200);
}

.tabs--vertical {
  flex-direction: column;
  border-right: 1px solid var(--color-gray-200);
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 20px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
  cursor: pointer;
  white-space: nowrap;
  transition:
    color var(--duration-fast) var(--easing-default),
    border-color var(--duration-fast) var(--easing-default);
  border: none;
  background: none;
  font-family: var(--font-family-primary);
  position: relative;
}

.tab:hover {
  color: var(--color-gray-700);
}

.tab:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: -2px;
  border-radius: var(--radius-xs);
}

.tab--active {
  color: var(--color-primary-600);
  font-weight: var(--font-weight-semibold);
}

.tabs--horizontal .tab {
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tabs--horizontal .tab--active {
  border-bottom-color: var(--color-primary-600);
}

.tabs--vertical .tab {
  border-right: 2px solid transparent;
  margin-right: -1px;
}

.tabs--vertical .tab--active {
  border-right-color: var(--color-primary-600);
}

.tab--disabled {
  opacity: var(--opacity-disabled);
  cursor: default;
  pointer-events: none;
}

.tab__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Tab content panel */
.tab-panel {
  display: none;
}

.tab-panel--active {
  display: block;
}

/* Dropdown
   ========================================================================== */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown__menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--z-dropdown);
  min-width: 220px;
  max-width: 360px;
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm);
  margin-top: var(--spacing-xs);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition:
    opacity 120ms var(--easing-default),
    transform 120ms var(--easing-default),
    visibility 120ms var(--easing-default);
}

.dropdown--open .dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown--right .dropdown__menu {
  left: auto;
  right: 0;
}

.dropdown__item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 8px 12px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--easing-default);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-family-primary);
  text-decoration: none;
}

.dropdown__item:hover {
  background: var(--color-gray-100);
}

.dropdown__item:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: -2px;
}

.dropdown__item--active {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
}

.dropdown__item--disabled {
  color: var(--color-gray-300);
  cursor: default;
  pointer-events: none;
}

.dropdown__item-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-gray-400);
}

.dropdown__item--active .dropdown__item-icon {
  color: var(--color-primary-600);
}

.dropdown__divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: var(--spacing-sm) 0;
}

/* Modal
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 180ms var(--easing-default),
    visibility 180ms var(--easing-default);
}

.modal-overlay--open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-white);
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.96);
  transition: transform 180ms var(--easing-default);
  width: 100%;
  margin: var(--spacing-xl);
}

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

.modal--sm {
  max-width: 420px;
}

.modal--md {
  max-width: 640px;
}

.modal--lg {
  max-width: 840px;
}

.modal--xl {
  max-width: 1080px;
}

.modal--full {
  max-width: 100vw;
  max-height: 100vh;
  border-radius: 0;
  margin: 0;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 24px;
  border-bottom: 1px solid var(--color-gray-200);
  flex-shrink: 0;
}

.modal__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
}

.modal__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-gray-500);
  margin-top: var(--spacing-xs);
}

.modal__close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-gray-400);
  transition: background var(--duration-fast) var(--easing-default);
  flex-shrink: 0;
}

.modal__close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

.modal__close:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.modal__close-icon {
  width: 20px;
  height: 20px;
}

.modal__body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-md);
  height: 80px;
  padding: 0 24px;
  border-top: 1px solid var(--color-gray-200);
  flex-shrink: 0;
}

/* Tooltip
   ========================================================================== */
.tooltip {
  position: relative;
  display: inline-flex;
}

.tooltip__content {
  position: absolute;
  z-index: var(--z-tooltip);
  max-width: 280px;
  min-width: 120px;
  padding: 8px 12px;
  background: var(--color-gray-900);
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  border-radius: var(--radius-md);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 120ms var(--easing-default),
    visibility 120ms var(--easing-default);
  white-space: normal;
  text-align: center;
  line-height: 1.4;
}

.tooltip:hover .tooltip__content,
.tooltip:focus-within .tooltip__content {
  opacity: 1;
  visibility: visible;
  transition-delay: 300ms;
}

/* Tooltip arrow */
.tooltip__content::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-gray-900);
  transform: rotate(45deg);
}

/* Tooltip top (default) */
.tooltip__content--top {
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
}

.tooltip__content--top::after {
  top: 100%;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  margin-top: -4px;
}

/* Tooltip bottom */
.tooltip__content--bottom {
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
}

.tooltip__content--bottom::after {
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  margin-bottom: -4px;
}

/* Tooltip left */
.tooltip__content--left {
  right: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
}

.tooltip__content--left::after {
  left: 100%;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  margin-left: -4px;
}

/* Tooltip right */
.tooltip__content--right {
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
}

.tooltip__content--right::after {
  right: 100%;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  margin-right: -4px;
}

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

.notification__item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  min-width: 360px;
  max-width: 480px;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: notification-slide-in 300ms var(--easing-default) forwards;
}

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

.notification__item--exiting {
  animation: notification-slide-out 200ms var(--easing-default) forwards;
}

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

.notification__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.notification__icon--success {
  color: var(--color-success-500);
}

.notification__icon--warning {
  color: var(--color-warning-500);
}

.notification__icon--error {
  color: var(--color-danger-500);
}

.notification__icon--info {
  color: var(--color-info-500);
}

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

.notification__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 2px;
}

.notification__message {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.4;
}

.notification__close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-gray-400);
  border-radius: var(--radius-xs);
  flex-shrink: 0;
  transition: color var(--duration-fast) var(--easing-default);
}

.notification__close:hover {
  color: var(--color-gray-600);
}

.notification__close:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Notification widget (dropdown panel)
   ========================================================================== */
.notification-widget {
  width: 360px;
  max-height: 520px;
  display: flex;
  flex-direction: column;
}

.notification-widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.notification-widget__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
}

.notification-widget__unread {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-left: var(--spacing-sm);
}

.notification-widget__mark-read {
  font-size: var(--font-size-sm);
  color: var(--color-primary-600);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family-primary);
  font-weight: var(--font-weight-medium);
}

.notification-widget__mark-read:hover {
  color: var(--color-primary-700);
}

.notification-widget__list {
  flex: 1;
  overflow-y: auto;
}

.notification-widget__item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  min-height: 72px;
  cursor: pointer;
  transition: background var(--duration-fast) var(--easing-default);
  border-bottom: 1px solid var(--color-gray-100);
}

.notification-widget__item:hover {
  background: var(--color-gray-50);
}

.notification-widget__item--unread {
  position: relative;
}

.notification-widget__item--unread::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--color-primary-500);
  border-radius: 0 2px 2px 0;
}

.notification-widget__item-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.notification-widget__item-icon--critical {
  color: var(--color-danger-500);
}

.notification-widget__item-icon--warning {
  color: var(--color-warning-500);
}

.notification-widget__item-icon--info {
  color: var(--color-info-500);
}

.notification-widget__item-icon--normal {
  color: var(--color-gray-400);
}

.notification-widget__item-content {
  flex: 1;
  min-width: 0;
}

.notification-widget__item-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  margin-bottom: 2px;
}

.notification-widget__item-message {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.4;
}

.notification-widget__item-time {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  white-space: nowrap;
  flex-shrink: 0;
}

.notification-widget__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}

/* KPI Card
   ========================================================================== */
.kpi-card {
  height: 136px;
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition:
    box-shadow var(--duration-normal) var(--easing-default),
    transform var(--duration-normal) var(--easing-default);
}

.kpi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.kpi-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.kpi-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
}

.kpi-card__icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary-500);
  opacity: 0.15;
  flex-shrink: 0;
}

.kpi-card__value {
  font-size: 36px;
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-900);
  line-height: 40px;
}

.kpi-card__trend {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.kpi-card__trend--up {
  color: var(--color-success-600);
}

.kpi-card__trend--down {
  color: var(--color-danger-600);
}

.kpi-card__trend--neutral {
  color: var(--color-gray-500);
}

.kpi-card__trend-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* KPI Card loading */
.kpi-card--loading .kpi-card__value,
.kpi-card--loading .kpi-card__trend {
  opacity: 0.4;
  pointer-events: none;
}

/* Statistic Card
   ========================================================================== */
.stat-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  transition:
    box-shadow var(--duration-normal) var(--easing-default),
    transform var(--duration-normal) var(--easing-default);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary-600);
  background: var(--color-primary-50);
}

.stat-card__icon svg {
  width: 24px;
  height: 24px;
}

.stat-card__body {
  flex: 1;
  min-width: 0;
}

.stat-card__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-xs);
}

.stat-card__value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-900);
  line-height: 1.2;
  margin-bottom: var(--spacing-xs);
}

.stat-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.4;
}

/* Statistic Card layout variants */
.stat-card--horizontal {
  flex-direction: row;
}

.stat-card--vertical {
  flex-direction: column;
  text-align: center;
  align-items: center;
}

.stat-card--vertical .stat-card__icon {
  margin-bottom: var(--spacing-md);
}

/* Summary Card
   ========================================================================== */
.summary-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition:
    box-shadow var(--duration-normal) var(--easing-default),
    transform var(--duration-normal) var(--easing-default);
}

.summary-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.summary-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.summary-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
}

.summary-card__value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-900);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.summary-card__info {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.5;
}

.summary-card__footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Status Card
   ========================================================================== */
.status-card {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition:
    box-shadow var(--duration-normal) var(--easing-default),
    transform var(--duration-normal) var(--easing-default);
}

.status-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.status-card__indicator {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-top: 4px;
}

.status-card__indicator--success {
  background: var(--color-success-500);
}

.status-card__indicator--warning {
  background: var(--color-warning-500);
}

.status-card__indicator--danger {
  background: var(--color-danger-500);
}

.status-card__indicator--info {
  background: var(--color-info-500);
}

.status-card__indicator--neutral {
  background: var(--color-gray-300);
}

.status-card__body {
  flex: 1;
  min-width: 0;
}

.status-card__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.status-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.4;
}

.status-card__badge {
  flex-shrink: 0;
}

/* Widget Container
   ========================================================================== */
.widget {
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-100);
  min-height: 64px;
  flex-shrink: 0;
}

.widget__header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 0;
}

.widget__header-icon {
  width: 20px;
  height: 20px;
  color: var(--color-gray-400);
  flex-shrink: 0;
}

.widget__header-content {
  min-width: 0;
}

.widget__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.widget__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-top: 2px;
}

.widget__header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.widget__body {
  flex: 1;
  padding: var(--spacing-xl);
  overflow: auto;
}

.widget__footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--color-gray-100);
  flex-shrink: 0;
}

/* Widget empty state */
.widget__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  text-align: center;
  color: var(--color-gray-400);
}

.widget__empty-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-300);
}

.widget__empty-text {
  font-size: var(--font-size-sm);
}

/* Widget loading */
.widget--loading .widget__body {
  opacity: 0.5;
  pointer-events: none;
}

/* Dashboard Panel
   ========================================================================== */
.dashboard-panel {
  background: var(--color-bg-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.dashboard-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-100);
  flex-shrink: 0;
}

.dashboard-panel__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
}

.dashboard-panel__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.dashboard-panel__body {
  flex: 1;
  padding: var(--spacing-xl);
  overflow: auto;
}

.dashboard-panel__footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--color-gray-100);
  flex-shrink: 0;
}

/* Activity Timeline
   ========================================================================== */
.activity-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.activity-timeline__item {
  display: flex;
  gap: var(--spacing-md);
  min-height: 64px;
  padding: var(--spacing-md) 0;
  position: relative;
  transition: background var(--duration-fast) var(--easing-default);
}

.activity-timeline__item:hover {
  background: var(--color-gray-50);
  margin: 0 calc(-1 * var(--spacing-xl));
  padding-left: var(--spacing-xl);
  padding-right: var(--spacing-xl);
}

.activity-timeline__icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.activity-timeline__icon--success {
  background: var(--color-success-100);
  color: var(--color-success-600);
}

.activity-timeline__icon--warning {
  background: var(--color-warning-100);
  color: var(--color-warning-600);
}

.activity-timeline__icon--danger {
  background: var(--color-danger-100);
  color: var(--color-danger-600);
}

.activity-timeline__icon--info {
  background: var(--color-info-100);
  color: var(--color-info-600);
}

.activity-timeline__icon--neutral {
  background: var(--color-gray-100);
  color: var(--color-gray-500);
}

.activity-timeline__icon svg {
  width: 16px;
  height: 16px;
}

/* Timeline connector line */
.activity-timeline__item::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 32px;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.activity-timeline__item:last-child::before {
  display: none;
}

.activity-timeline__content {
  flex: 1;
  min-width: 0;
  padding-top: 4px;
}

.activity-timeline__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-bottom: 2px;
}

.activity-timeline__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-800);
}

.activity-timeline__time {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  white-space: nowrap;
  flex-shrink: 0;
}

.activity-timeline__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.4;
}

.activity-timeline__action {
  margin-top: var(--spacing-sm);
}

/* Activity Timeline empty state */
.activity-timeline__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* Alert Panel
   ========================================================================== */
.alert-panel {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.alert-panel__item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-100);
  transition: background var(--duration-fast) var(--easing-default);
  cursor: pointer;
}

.alert-panel__item:last-child {
  border-bottom: none;
}

.alert-panel__item:hover {
  background: var(--color-gray-50);
}

.alert-panel__severity {
  width: 4px;
  height: 40px;
  border-radius: 2px;
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-panel__severity--critical {
  background: var(--color-danger-500);
}

.alert-panel__severity--high {
  background: var(--color-warning-500);
}

.alert-panel__severity--medium {
  background: var(--color-info-500);
}

.alert-panel__severity--low {
  background: var(--color-gray-300);
}

.alert-panel__content {
  flex: 1;
  min-width: 0;
}

.alert-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-bottom: 2px;
}

.alert-panel__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-800);
}

.alert-panel__time {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  white-space: nowrap;
  flex-shrink: 0;
}

.alert-panel__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.4;
}

.alert-panel__action {
  flex-shrink: 0;
  margin-top: 2px;
}

/* Alert Panel empty state */
.alert-panel__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* Theme Toggle
   ========================================================================== */

/* Show sun icon in light mode, moon icon in dark mode */
.theme-toggle-icon--moon {
  display: none;
}

[data-theme="dark"] .theme-toggle-icon--sun {
  display: none;
}

[data-theme="dark"] .theme-toggle-icon--moon {
  display: block;
}