/*
 * Modals, toasts, tooltips, skeletons, standalone callouts, bookmark-style link preview
 */

/* --- Skeleton --- */
.ds-skeleton {
  display: block;
  border-radius: var(--ds-radius-sm);
  min-height: 1em;
  background: linear-gradient(
    90deg,
    var(--ds-surface-2) 0%,
    color-mix(in srgb, var(--ds-surface-2) 55%, var(--ds-surface-elevated)) 45%,
    var(--ds-surface-2) 90%
  );
  background-size: 200% 100%;
  animation: var(--ds-animation-shimmer);
}

.ds-skeleton--circle {
  border-radius: var(--ds-radius-full);
  aspect-ratio: 1;
}

.ds-skeleton--text {
  width: 100%;
  margin: 0.35rem 0;
}

.ds-skeleton--title {
  width: 70%;
  min-height: 1.15rem;
}

@keyframes ds-skeleton-shimmer {
  0% {
    background-position: 100% 0;
  }

  100% {
    background-position: -100% 0;
  }
}

/* --- Modal (native dialog) --- */
dialog.ds-modal {
  position: fixed;
  inset: 0;
  margin: auto;
  z-index: var(--ds-z-modal);
  max-width: min(100vw - 2rem, 28rem);
  width: 100%;
  padding: 0;
  border: 1px solid var(--ds-color-border);
  border-radius: var(--ds-radius-lg);
  background: var(--ds-surface-elevated);
  color: var(--ds-color-fg);
  box-shadow: var(--ds-shadow-md);
}

dialog.ds-modal::backdrop {
  background: hsl(220 18% 8% / 0.55);
}

dialog.ds-modal[open] {
  display: block;
}

.ds-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--ds-space-3);
  padding: var(--ds-space-4) var(--ds-space-5);
  border-bottom: 1px solid var(--ds-color-border);
}

.ds-modal__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 650;
}

.ds-modal__body {
  padding: var(--ds-space-5);
}

.ds-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--ds-space-2);
  padding: var(--ds-space-4) var(--ds-space-5);
  border-top: 1px solid var(--ds-color-border);
}

/* --- Toast --- */
.ds-toast-region {
  position: fixed;
  z-index: var(--ds-z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-2);
  max-width: min(100vw - 2rem, 22rem);
  pointer-events: none;
}

.ds-toast-region--top-left {
  top: var(--ds-space-4);
  left: var(--ds-space-4);
  align-items: flex-start;
}

.ds-toast-region--top-start {
  top: var(--ds-space-4);
  inset-inline-start: var(--ds-space-4);
  align-items: flex-start;
}

.ds-toast-region--top-right {
  top: var(--ds-space-4);
  right: var(--ds-space-4);
  align-items: flex-end;
}

.ds-toast-region--top-end {
  top: var(--ds-space-4);
  inset-inline-end: var(--ds-space-4);
  align-items: flex-end;
}

.ds-toast-region--top-center {
  top: var(--ds-space-4);
  left: 50%;
  align-items: center;
  transform: translateX(-50%);
}

.ds-toast-region--bottom-left {
  bottom: var(--ds-space-4);
  left: var(--ds-space-4);
  align-items: flex-start;
}

.ds-toast-region--bottom-start {
  bottom: var(--ds-space-4);
  inset-inline-start: var(--ds-space-4);
  align-items: flex-start;
}

.ds-toast-region--bottom-right {
  right: var(--ds-space-4);
  bottom: var(--ds-space-4);
  align-items: flex-end;
}

.ds-toast-region--bottom-end {
  inset-inline-end: var(--ds-space-4);
  bottom: var(--ds-space-4);
  align-items: flex-end;
}

.ds-toast-region--bottom-center {
  bottom: var(--ds-space-4);
  left: 50%;
  align-items: center;
  transform: translateX(-50%);
}

.ds-toast-region > * {
  pointer-events: auto;
}

.ds-toast {
  padding: var(--ds-space-3) var(--ds-space-4);
  border-radius: var(--ds-radius-md);
  border: 1px solid var(--ds-color-border);
  background: var(--ds-surface-elevated);
  color: var(--ds-color-fg);
  font-size: 0.9rem;
  line-height: 1.45;
  box-shadow: var(--ds-shadow-md);
  animation: var(--ds-animation-enter);
}

.ds-toast--warning {
  border-color: var(--ds-color-warning-border);
  background: color-mix(in srgb, var(--ds-color-warning-muted) 88%, var(--ds-surface-elevated));
}

.ds-toast--danger {
  border-color: var(--ds-color-danger-border);
  background: color-mix(in srgb, var(--ds-color-danger-muted) 88%, var(--ds-surface-elevated));
}

.ds-toast--success {
  border-color: color-mix(in srgb, hsl(152 50% 45%) 55%, var(--ds-color-border));
  background: color-mix(in srgb, hsl(152 35% 92%) 75%, var(--ds-surface-elevated));
}

@keyframes ds-toast-in {
  from {
    opacity: 0;
    transform: translateY(var(--ds-motion-enter-y));
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Tooltip (CSS hover/focus; pair with Tooltip.tsx) --- */
.ds-tooltip {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
}

.ds-tooltip__trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  cursor: help;
  font: inherit;
}

.ds-tooltip__panel {
  position: absolute;
  z-index: var(--ds-z-popover);
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  min-width: 8rem;
  max-width: 16rem;
  padding: var(--ds-space-2) var(--ds-space-3);
  border-radius: var(--ds-radius-sm);
  border: 1px solid var(--ds-color-border);
  background: var(--ds-surface-elevated);
  color: var(--ds-color-fg);
  font-size: 0.8rem;
  line-height: 1.4;
  box-shadow: var(--ds-shadow-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ds-duration-fast) var(--ds-ease-standard);
}

.ds-tooltip__panel[data-placement="bottom"] {
  bottom: auto;
  top: calc(100% + 6px);
  transform: translateX(-50%);
}

.ds-tooltip[data-open="true"] .ds-tooltip__panel,
.ds-tooltip:hover .ds-tooltip__panel,
.ds-tooltip:focus-within .ds-tooltip__panel {
  opacity: 1;
}

/* --- Popover --- */
.ds-popover {
  position: relative;
  display: inline-flex;
}

.ds-popover__panel {
  position: absolute;
  z-index: var(--ds-z-popover);
  min-width: min(20rem, calc(100vw - var(--ds-space-8)));
  max-width: min(26rem, calc(100vw - var(--ds-space-8)));
  overflow: hidden;
  border: 1px solid var(--ds-color-border);
  border-radius: var(--ds-radius-md);
  background: var(--ds-surface-elevated);
  color: var(--ds-color-fg);
  box-shadow: var(--ds-shadow-md);
  animation: ds-popover-in var(--ds-duration-fast) var(--ds-ease-decelerated);
}

.ds-popover__panel[data-placement="bottom"] {
  top: calc(100% + var(--ds-space-2));
}

.ds-popover__panel[data-placement="top"] {
  bottom: calc(100% + var(--ds-space-2));
}

.ds-popover__panel[data-align="start"] {
  inset-inline-start: 0;
}

.ds-popover__panel[data-align="center"] {
  inset-inline-start: 50%;
  transform: translateX(-50%);
}

.ds-popover__panel[data-align="end"] {
  inset-inline-end: 0;
}

.ds-popover__header,
.ds-popover__footer {
  padding: var(--ds-space-3) var(--ds-space-4);
}

.ds-popover__header {
  border-bottom: 1px solid var(--ds-color-border);
}

.ds-popover__title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 650;
  line-height: 1.3;
}

.ds-popover__body {
  padding: var(--ds-space-4);
  font-size: 0.95rem;
  line-height: 1.5;
}

.ds-popover__body > :first-child {
  margin-top: 0;
}

.ds-popover__body > :last-child {
  margin-bottom: 0;
}

.ds-popover__footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--ds-space-2);
  border-top: 1px solid var(--ds-color-border);
}

@keyframes ds-popover-in {
  from {
    opacity: 0;
    transform: translateY(var(--ds-motion-enter-y));
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ds-popover__panel[data-placement="top"] {
  animation-name: ds-popover-in-top;
}

@keyframes ds-popover-in-top {
  from {
    opacity: 0;
    transform: translateY(calc(var(--ds-motion-enter-y) * -1));
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ds-popover__panel[data-align="center"] {
  animation-name: ds-popover-in-center;
}

@keyframes ds-popover-in-center {
  from {
    opacity: 0;
    transform: translate(-50%, var(--ds-motion-enter-y));
  }

  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

.ds-popover__panel[data-placement="top"][data-align="center"] {
  animation-name: ds-popover-in-top-center;
}

@keyframes ds-popover-in-top-center {
  from {
    opacity: 0;
    transform: translate(-50%, calc(var(--ds-motion-enter-y) * -1));
  }

  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* --- Sheet / drawer --- */
.ds-sheet {
  position: fixed;
  inset: 0;
  z-index: var(--ds-z-modal);
  display: block;
}

.ds-sheet__backdrop {
  position: fixed;
  inset: 0;
  border: 0;
  padding: 0;
  background: hsl(220 18% 8% / 0.55);
  cursor: default;
  animation: ds-sheet-backdrop-in var(--ds-duration-base) var(--ds-ease-standard);
}

.ds-sheet__panel {
  position: fixed;
  z-index: calc(var(--ds-z-modal) + 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--ds-color-border);
  background: var(--ds-surface-elevated);
  color: var(--ds-color-fg);
  box-shadow: var(--ds-shadow-md);
  animation: ds-sheet-slide-in var(--ds-duration-base) var(--ds-ease-decelerated);
}

.ds-sheet[data-side="right"] .ds-sheet__panel,
.ds-sheet[data-side="left"] .ds-sheet__panel {
  top: var(--ds-space-4);
  bottom: var(--ds-space-4);
  width: min(28rem, calc(100vw - var(--ds-space-8)));
  border-radius: var(--ds-radius-lg);
}

.ds-sheet[data-side="right"] .ds-sheet__panel {
  inset-inline-end: var(--ds-space-4);
  --ds-sheet-enter-x: var(--ds-space-8);
}

.ds-sheet[data-side="left"] .ds-sheet__panel {
  inset-inline-start: var(--ds-space-4);
  --ds-sheet-enter-x: calc(var(--ds-space-8) * -1);
}

.ds-sheet[data-side="bottom"] .ds-sheet__panel {
  inset-inline: var(--ds-space-4);
  bottom: var(--ds-space-4);
  max-height: min(80vh, 36rem);
  border-radius: var(--ds-radius-lg);
  --ds-sheet-enter-x: 0;
  --ds-sheet-enter-y: var(--ds-space-8);
}

.ds-sheet__header,
.ds-sheet__footer {
  display: flex;
  gap: var(--ds-space-3);
  padding: var(--ds-space-4) var(--ds-space-5);
}

.ds-sheet__header {
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid var(--ds-color-border);
}

.ds-sheet__heading {
  display: grid;
  gap: var(--ds-space-1);
  min-width: 0;
}

.ds-sheet__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 650;
  line-height: 1.3;
}

.ds-sheet__description {
  margin: 0;
  color: var(--ds-color-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.ds-sheet__body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: var(--ds-space-5);
}

.ds-sheet__body > :first-child {
  margin-top: 0;
}

.ds-sheet__body > :last-child {
  margin-bottom: 0;
}

.ds-sheet__footer {
  flex-wrap: wrap;
  justify-content: flex-end;
  border-top: 1px solid var(--ds-color-border);
}

@keyframes ds-sheet-backdrop-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes ds-sheet-slide-in {
  from {
    opacity: 0;
    transform: translate(
      var(--ds-sheet-enter-x, 0),
      var(--ds-sheet-enter-y, 0)
    );
  }

  to {
    opacity: 1;
    transform: translate(0, 0);
  }
}

@media (max-width: 520px) {
  .ds-sheet[data-side="right"] .ds-sheet__panel,
  .ds-sheet[data-side="left"] .ds-sheet__panel {
    inset-block: 0;
    inset-inline: 0;
    width: 100vw;
    border-radius: 0;
  }

  .ds-sheet[data-side="bottom"] .ds-sheet__panel {
    inset-inline: 0;
    bottom: 0;
    border-end-start-radius: 0;
    border-end-end-radius: 0;
  }
}

/* --- Standalone callout (mirrors Koenig callout intent for React) --- */
.ds-callout {
  display: flex;
  gap: var(--ds-space-4);
  padding: var(--ds-space-4);
  border-radius: var(--ds-radius-md);
  border: 1px solid var(--ds-color-border);
  background: var(--ds-surface-2);
}

.ds-callout__emoji {
  flex-shrink: 0;
  font-size: 1.5rem;
  line-height: 1;
}

.ds-callout__body {
  flex: 1;
  min-width: 0;
  font-size: 0.95rem;
  line-height: 1.55;
}

.ds-callout__body > :first-child {
  margin-top: 0;
}

.ds-callout__body > :last-child {
  margin-bottom: 0;
}

.ds-callout--grey {
  background: var(--ds-surface-2);
  border-color: var(--ds-color-border);
}

.ds-callout--white {
  background: var(--ds-surface-1);
}

.ds-callout--accent {
  background: var(--ds-color-accent-muted);
  border-color: color-mix(in srgb, var(--ds-color-accent) 40%, var(--ds-color-border));
}

.ds-callout--blue {
  background: hsl(214 90% 94%);
  border-color: hsl(214 55% 78%);
}

html[data-color-scheme="dark"] .ds-callout--blue {
  background: hsl(214 35% 18%);
  border-color: hsl(214 35% 32%);
}

@media (prefers-color-scheme: dark) {
  html[data-color-scheme="system"] .ds-callout--blue {
    background: hsl(214 35% 18%);
    border-color: hsl(214 35% 32%);
  }
}

.ds-callout--green {
  background: hsl(152 45% 92%);
  border-color: hsl(152 40% 72%);
}

html[data-color-scheme="dark"] .ds-callout--green {
  background: hsl(152 30% 16%);
  border-color: hsl(152 28% 32%);
}

@media (prefers-color-scheme: dark) {
  html[data-color-scheme="system"] .ds-callout--green {
    background: hsl(152 30% 16%);
    border-color: hsl(152 28% 32%);
  }
}

.ds-callout--yellow {
  background: hsl(48 90% 92%);
  border-color: hsl(45 60% 70%);
}

html[data-color-scheme="dark"] .ds-callout--yellow {
  background: hsl(45 40% 16%);
  border-color: hsl(45 35% 32%);
}

@media (prefers-color-scheme: dark) {
  html[data-color-scheme="system"] .ds-callout--yellow {
    background: hsl(45 40% 16%);
    border-color: hsl(45 35% 32%);
  }
}

.ds-callout--red {
  background: color-mix(in srgb, var(--ds-color-danger-muted) 88%, var(--ds-surface-2));
  border-color: var(--ds-color-danger-border);
}

.ds-callout--pink {
  background: hsl(330 80% 95%);
  border-color: hsl(330 45% 80%);
}

html[data-color-scheme="dark"] .ds-callout--pink {
  background: hsl(330 35% 18%);
  border-color: hsl(330 30% 34%);
}

@media (prefers-color-scheme: dark) {
  html[data-color-scheme="system"] .ds-callout--pink {
    background: hsl(330 35% 18%);
    border-color: hsl(330 30% 34%);
  }
}

.ds-callout--purple {
  background: hsl(270 60% 94%);
  border-color: hsl(270 40% 78%);
}

html[data-color-scheme="dark"] .ds-callout--purple {
  background: hsl(270 35% 18%);
  border-color: hsl(270 30% 34%);
}

@media (prefers-color-scheme: dark) {
  html[data-color-scheme="system"] .ds-callout--purple {
    background: hsl(270 35% 18%);
    border-color: hsl(270 30% 34%);
  }
}

.ds-callout--info {
  background: color-mix(in srgb, hsl(214 90% 94%) 80%, var(--ds-surface-2));
  border-color: hsl(214 55% 78%);
}

.ds-callout--warning {
  background: color-mix(in srgb, var(--ds-color-warning-muted) 85%, var(--ds-surface-2));
  border-color: var(--ds-color-warning-border);
}

.ds-callout--danger {
  background: color-mix(in srgb, var(--ds-color-danger-muted) 88%, var(--ds-surface-2));
  border-color: var(--ds-color-danger-border);
}

/* --- Bookmark-style link preview (DS + Storybook; Ghost uses .kg-bookmark-*) --- */
.ds-link-preview {
  display: flex;
  border: 1px solid var(--ds-color-border);
  border-radius: var(--ds-radius-md);
  overflow: hidden;
  background: var(--ds-surface-1);
  text-align: start;
}

.ds-link-preview__main {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  padding: var(--ds-space-4);
  text-decoration: none;
  color: inherit;
}

.ds-link-preview__publisher {
  font-size: 0.85rem;
  color: var(--ds-color-faint);
}

.ds-link-preview__title {
  margin: 0 0 var(--ds-space-2);
  font-size: 1.05rem;
  font-weight: 650;
  line-height: 1.35;
}

.ds-link-preview__desc {
  margin: 0 0 var(--ds-space-3);
  font-size: 0.95rem;
  color: var(--ds-color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ds-link-preview__meta {
  display: flex;
  align-items: center;
  gap: var(--ds-space-2);
  margin-top: auto;
  font-size: 0.85rem;
  color: var(--ds-color-faint);
}

.ds-link-preview__icon {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: var(--ds-radius-sm);
  flex-shrink: 0;
}

.ds-link-preview__thumb {
  flex-shrink: 0;
  width: 200px;
  min-height: 140px;
  background: var(--ds-surface-2);
}

.ds-link-preview__thumb img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
}

@media (max-width: 640px) {
  .ds-link-preview {
    flex-direction: column;
  }

  .ds-link-preview__thumb {
    width: 100%;
    min-height: 200px;
  }
}

.ds-link-preview--loading .ds-link-preview__thumb {
  min-height: 140px;
}