/* Opt-in components. No global reset or application styles. */
.ds-button,
.ds-input,
.ds-card,
.ds-alert,
.ds-badge,
.ds-tabs,
.ds-table,
.ds-dialog,
.ds-toast,
.ds-choice,
.ds-accordion,
.ds-empty,
.ds-tooltip,
.ds-field {
  box-sizing: border-box;
  font-family: var(--ds-font-sans);
}
.ds-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ds-space-2);
  min-height: var(--ds-control-height);
  min-width: var(--ds-control-height);
  padding: 0 var(--ds-space-4);
  border: 1px solid transparent;
  border-radius: var(--ds-radius-sm);
  font-size: var(--ds-text-sm);
  font-weight: 650;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--ds-motion-fast) var(--ds-ease);
}
.ds-button svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.ds-button--primary {
  background: var(--ds-accent);
  color: var(--ds-accent-ink);
}
.ds-button--primary:hover:not(:disabled) {
  background: var(--ds-accent-hover);
}
.ds-button--secondary {
  background: var(--ds-surface);
  border-color: var(--ds-border-control);
  color: var(--ds-text);
}
.ds-button--secondary:hover:not(:disabled),
.ds-button--ghost:hover:not(:disabled) {
  background: var(--ds-surface-hover);
}
.ds-button--ghost {
  color: var(--ds-text-secondary);
  background: transparent;
}
.ds-button--danger {
  background: var(--ds-danger-bg);
  border-color: var(--ds-danger);
  color: var(--ds-danger);
}
.ds-button--danger:hover:not(:disabled) {
  background: var(--ds-danger);
  color: var(--ds-bg);
}
.ds-button--sm {
  min-height: var(--ds-control-height-sm);
  padding-inline: var(--ds-space-3);
  font-size: var(--ds-text-xs);
}
.ds-button--lg {
  min-height: var(--ds-control-height-lg);
  padding-inline: var(--ds-space-5);
  font-size: var(--ds-text-md);
}
.ds-button:disabled,
.ds-input:disabled,
.ds-choice:has(input:disabled) {
  opacity: 0.48;
  cursor: not-allowed;
}
.ds-icon-button {
  width: var(--ds-control-height);
  padding: 0;
}
.ds-icon-button > span {
  display: inline-flex;
}
.ds-icon-button.ds-button--sm {
  width: var(--ds-control-height-sm);
}
.ds-icon-button.ds-button--lg {
  width: var(--ds-control-height-lg);
}
.ds-link {
  color: var(--ds-accent-text);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}
.ds-link:hover {
  text-decoration-thickness: 2px;
}
.ds-link[aria-disabled] {
  color: var(--ds-text-tertiary);
  cursor: not-allowed;
}
.ds-field {
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-2);
  min-width: 0;
  color: var(--ds-text);
}
.ds-label {
  color: var(--ds-text);
  font-size: var(--ds-text-sm);
  font-weight: 550;
  line-height: 1.4;
}
.ds-input {
  width: 100%;
  min-height: var(--ds-control-height);
  padding: 11px 12px;
  color: var(--ds-text);
  background: var(--ds-surface);
  border: 1px solid var(--ds-border-control);
  border-radius: var(--ds-radius-sm);
  font-size: var(--ds-text-md);
  line-height: 1.5;
}
.ds-input::placeholder {
  color: var(--ds-text-tertiary);
  opacity: 1;
}
.ds-input:hover:not(:disabled) {
  border-color: var(--ds-text-secondary);
}
.ds-input[aria-invalid='true'] {
  border-color: var(--ds-danger);
}
.ds-input[readonly] {
  background: var(--ds-surface-sunken);
}
.ds-textarea {
  resize: vertical;
  min-height: 104px;
}
.ds-select {
  appearance: auto;
}
.ds-hint,
.ds-error {
  margin: 0;
  font-size: var(--ds-text-xs);
  line-height: 1.5;
}
.ds-hint {
  color: var(--ds-text-secondary);
}
.ds-error {
  color: var(--ds-danger);
}
.ds-choice {
  min-height: var(--ds-control-height);
  min-width: var(--ds-control-height);
  display: inline-flex;
  align-items: center;
  gap: var(--ds-space-2);
  font-size: var(--ds-text-sm);
  color: var(--ds-text);
  cursor: pointer;
  position: relative;
}
.ds-choice input {
  accent-color: var(--ds-accent);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin: 0;
}
.ds-switch input {
  position: absolute;
  width: 36px;
  height: 22px;
  opacity: 0;
}
.ds-switch-track {
  pointer-events: none;
  width: 36px;
  height: 22px;
  border: 1px solid var(--ds-border-control);
  border-radius: var(--ds-radius-full);
  background: var(--ds-surface-raised);
  position: relative;
  transition: background var(--ds-motion-fast);
  flex-shrink: 0;
}
.ds-switch-track::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ds-text-secondary);
  transition: transform var(--ds-motion-fast);
}
.ds-switch input:checked + .ds-switch-track {
  background: var(--ds-accent);
  border-color: var(--ds-accent);
}
.ds-switch input:checked + .ds-switch-track::after {
  transform: translateX(14px);
  background: var(--ds-accent-ink);
}
.ds-slider {
  width: 100%;
  min-height: var(--ds-control-height);
  accent-color: var(--ds-accent);
  cursor: pointer;
}
.ds-tone--neutral {
  --ds-tone-fg: var(--ds-text-secondary);
  --ds-tone-bg: var(--ds-surface-raised);
}
.ds-tone--success {
  --ds-tone-fg: var(--ds-success);
  --ds-tone-bg: var(--ds-success-bg);
}
.ds-tone--warning {
  --ds-tone-fg: var(--ds-warning);
  --ds-tone-bg: var(--ds-warning-bg);
}
.ds-tone--danger {
  --ds-tone-fg: var(--ds-danger);
  --ds-tone-bg: var(--ds-danger-bg);
}
.ds-tone--info {
  --ds-tone-fg: var(--ds-info);
  --ds-tone-bg: var(--ds-info-bg);
}
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: var(--ds-radius-sm);
  font-size: 0.875rem;
  line-height: 1.4;
  font-weight: 550;
  background: var(--ds-tone-bg);
  color: var(--ds-tone-fg);
  white-space: normal;
  overflow-wrap: anywhere;
  max-width: 100%;
}
.ds-alert {
  display: flex;
  gap: var(--ds-space-3);
  border: 1px solid var(--ds-tone-fg);
  padding: var(--ds-space-4);
  border-radius: var(--ds-radius-md);
  background: var(--ds-tone-bg);
  color: var(--ds-tone-fg);
  font-size: var(--ds-text-sm);
  line-height: 1.5;
}
.ds-alert-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid currentColor;
  border-radius: 50%;
  flex-shrink: 0;
  font-size: 0.875rem;
}
.ds-alert strong {
  font-weight: 600;
}
.ds-alert-content {
  margin-top: 4px;
}
.ds-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--ds-accent-soft);
  color: var(--ds-accent-text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font: 600 0.875rem var(--ds-font-sans);
  border: 1px solid var(--ds-border);
}
.ds-avatar--sm {
  width: 28px;
  height: 28px;
  font-size: 0.875rem;
}
.ds-avatar--lg {
  width: 48px;
  height: 48px;
  font-size: 1rem;
}
.ds-progress {
  appearance: none;
  border: none;
  width: 100%;
  height: 6px;
  background: var(--ds-surface-raised);
  border-radius: 99px;
  overflow: hidden;
}
.ds-progress::-webkit-progress-bar {
  background: var(--ds-surface-raised);
}
.ds-progress::-webkit-progress-value {
  background: var(--ds-accent);
  border-radius: 99px;
}
.ds-progress::-moz-progress-bar {
  background: var(--ds-accent);
  border-radius: 99px;
}
.ds-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: ds-spin 0.8s linear infinite;
  flex-shrink: 0;
}
.ds-spinner-wrap {
  color: var(--ds-accent-text);
  display: inline-flex;
}
@keyframes ds-spin {
  to {
    transform: rotate(360deg);
  }
}
.ds-skeleton {
  min-height: 16px;
  background: var(--ds-surface-raised);
  border-radius: var(--ds-radius-sm);
  animation: ds-pulse 1.6s ease-in-out infinite;
}
@keyframes ds-pulse {
  50% {
    opacity: 0.4;
  }
}
.ds-card {
  background: var(--ds-surface);
  border: 1px solid var(--ds-border-soft);
  border-radius: var(--ds-radius-lg);
  padding: var(--ds-space-5);
  color: var(--ds-text);
}
.ds-stack {
  display: flex;
  min-width: 0;
}
.ds-stack--column {
  flex-direction: column;
}
.ds-stack--row {
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap;
}
.ds-gap-1 {
  gap: var(--ds-space-1);
}
.ds-gap-2 {
  gap: var(--ds-space-2);
}
.ds-gap-3 {
  gap: var(--ds-space-3);
}
.ds-gap-4 {
  gap: var(--ds-space-4);
}
.ds-gap-5 {
  gap: var(--ds-space-5);
}
.ds-gap-6 {
  gap: var(--ds-space-6);
}
.ds-gap-7 {
  gap: var(--ds-space-7);
}
.ds-gap-8 {
  gap: var(--ds-space-8);
}
.ds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: var(--ds-space-5);
}
.ds-container {
  width: min(100% - 32px, var(--ds-measure-page));
  margin-inline: auto;
}
.ds-separator {
  border: 0;
  height: 1px;
  background: var(--ds-border-soft);
  width: 100%;
  margin-block: var(--ds-space-5);
}
.ds-empty {
  padding: var(--ds-space-7) var(--ds-space-5);
  text-align: center;
  color: var(--ds-text);
}
.ds-empty-icon {
  color: var(--ds-text-secondary);
  margin-bottom: var(--ds-space-4);
}
.ds-empty h3 {
  margin: 0 0 8px;
  font-size: var(--ds-text-lg);
}
.ds-empty p {
  color: var(--ds-text-secondary);
  max-width: 44ch;
  margin: 0 auto 24px;
  font-size: var(--ds-text-sm);
  line-height: 1.6;
}
.ds-tab-list {
  display: flex;
  gap: var(--ds-space-5);
  border-bottom: 1px solid var(--ds-border-soft);
  overflow-x: auto;
}
.ds-tab-list[aria-orientation='vertical'] {
  flex-direction: column;
  gap: 0;
}
.ds-tab-list button {
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 14px 2px;
  min-height: 44px;
  min-width: 44px;
  background: transparent;
  color: var(--ds-text-secondary);
  font: 500 0.875rem var(--ds-font-sans);
  cursor: pointer;
  white-space: nowrap;
}
.ds-tab-list button[aria-selected='true'] {
  border-color: var(--ds-accent);
  color: var(--ds-accent-text);
}
.ds-tab-list button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ds-tab-panel {
  padding-block: var(--ds-space-5);
  font-size: var(--ds-text-sm);
  color: var(--ds-text-secondary);
  line-height: 1.6;
}
.ds-tab-panel[hidden] {
  display: none;
}
.ds-breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  gap: var(--ds-space-3);
  margin: 0;
  padding: 0;
  font-size: var(--ds-text-xs);
  color: var(--ds-text-secondary);
}
.ds-breadcrumb li {
  display: flex;
  gap: var(--ds-space-3);
  align-items: center;
}
.ds-breadcrumb .ds-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  min-width: 44px;
  color: var(--ds-text-secondary);
  text-decoration: none;
}
.ds-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-space-3);
  font: 0.875rem var(--ds-font-mono);
  color: var(--ds-text-secondary);
}
.ds-accordion {
  border-block: 1px solid var(--ds-border-soft);
  color: var(--ds-text);
}
.ds-accordion details + details {
  border-top: 1px solid var(--ds-border-soft);
}
.ds-accordion summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: var(--ds-space-4);
  padding: 16px 4px;
  font-size: var(--ds-text-sm);
  min-height: 44px;
  box-sizing: border-box;
}
.ds-accordion summary::-webkit-details-marker {
  display: none;
}
.ds-accordion details[open] summary span {
  transform: rotate(45deg);
}
.ds-accordion-body {
  padding: 0 4px 20px;
  font-size: var(--ds-text-sm);
  line-height: 1.6;
  color: var(--ds-text-secondary);
}
.ds-table-scroll {
  overflow: auto;
  width: 100%;
}
.ds-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  color: var(--ds-text);
  font-size: var(--ds-text-sm);
}
.ds-table th {
  background: var(--ds-surface-sunken);
  color: var(--ds-text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
  white-space: nowrap;
}
.ds-table th,
.ds-table td {
  padding: 16px;
  border-bottom: 1px solid var(--ds-border-soft);
}
.ds-table th button {
  min-height: 44px;
  min-width: 44px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
  padding: 8px 0;
  cursor: pointer;
}
.ds-table tbody tr:hover {
  background: var(--ds-surface-raised);
}
.ds-table-empty {
  text-align: center;
  color: var(--ds-text-secondary);
}
.ds-dialog {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-lg);
  padding: 0;
  background: var(--ds-surface);
  color: var(--ds-text);
  width: min(520px, calc(100vw - 32px));
  max-height: calc(100dvh - 48px);
  box-shadow: var(--ds-shadow-lg);
}
.ds-dialog::backdrop {
  background: rgb(0 0 0 / 65%);
  backdrop-filter: blur(4px);
}
.ds-dialog-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--ds-space-4);
  padding: 16px 24px;
  border-bottom: 1px solid var(--ds-border-soft);
}
.ds-dialog-heading h2 {
  margin: 0;
  font-size: var(--ds-text-lg);
}
.ds-dialog-body {
  padding: var(--ds-space-5);
  font-size: var(--ds-text-sm);
  line-height: 1.6;
}
.ds-dialog-footer {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--ds-space-2);
  padding: 16px 24px;
  border-top: 1px solid var(--ds-border-soft);
}
.ds-dialog-close {
  font-size: 24px;
  padding: 0;
  width: 44px;
}
.ds-tooltip {
  display: inline-flex;
  position: relative;
}
.ds-tooltip-trigger {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  min-width: 44px;
  cursor: help;
  padding: 4px 6px;
  border-radius: var(--ds-radius-sm);
}
.ds-tooltip-content {
  display: none;
  position: absolute;
  z-index: var(--ds-z-overlay);
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: min(240px, calc(100vw - 48px));
  background: var(--ds-surface-raised);
  color: var(--ds-text);
  border: 1px solid var(--ds-border);
  box-shadow: var(--ds-shadow-sm);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.875rem;
  line-height: 1.5;
}
.ds-tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 10px;
}
.ds-tooltip:hover .ds-tooltip-content,
.ds-tooltip:focus-within .ds-tooltip-content {
  display: block;
}
.ds-tooltip[data-ds-dismissed='true'] .ds-tooltip-content {
  display: none;
}
.ds-toast {
  display: flex;
  align-items: center;
  gap: var(--ds-space-4);
  padding: 12px 16px;
  border: 1px solid var(--ds-tone-fg);
  border-radius: var(--ds-radius-md);
  background: var(--ds-tone-bg);
  color: var(--ds-tone-fg);
  box-shadow: var(--ds-shadow-lg);
  font-size: var(--ds-text-sm);
}
.ds-toast-close {
  background: transparent;
  color: inherit;
  border: 0;
  min-width: 44px;
  min-height: 44px;
  font-size: 22px;
  cursor: pointer;
}
.ds-sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
@media (prefers-reduced-motion: reduce) {
  .ds-button,
  .ds-switch-track,
  .ds-switch-track::after {
    transition: none;
  }
  .ds-spinner,
  .ds-skeleton {
    animation: none;
  }
}
@media (forced-colors: active) {
  .ds-button,
  .ds-badge,
  .ds-alert,
  .ds-card,
  .ds-input,
  .ds-switch-track {
    border: 1px solid CanvasText;
  }
  .ds-switch input:checked + .ds-switch-track {
    background: Highlight;
  }
  .ds-switch-track::after {
    background: CanvasText;
  }
}
.ds-tabs:has([aria-orientation='vertical']) {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(0, 3fr);
  gap: var(--ds-space-4);
}
.ds-tab-list[aria-orientation='vertical'] {
  flex-direction: column;
  align-items: stretch;
  border-bottom: 0;
  border-right: 1px solid var(--ds-border-soft);
}
.ds-tab-list[aria-orientation='vertical'] button {
  text-align: left;
}
@media (max-width: 650px) {
  .ds-tabs:has([aria-orientation='vertical']) {
    grid-template-columns: minmax(0, 1fr);
  }
}