/* ==========================================================================
   Explore Page
   ========================================================================== */

.ap-explore-header {
  margin-bottom: var(--space-m);
}

.ap-explore-header__title {
  font-size: var(--font-size-xl);
  margin: 0 0 var(--space-xs);
}

.ap-explore-header__desc {
  color: var(--color-on-offset);
  font-size: var(--font-size-s);
  margin: 0;
}

.ap-explore-form {
  background: var(--color-offset);
  border: var(--border-width-thin) solid var(--color-outline);
  border-radius: var(--border-radius-small);
  margin-bottom: var(--space-m);
  padding: var(--space-m);
}

.ap-explore-form__row {
  align-items: center;
  display: flex;
  gap: var(--space-s);
  flex-wrap: wrap;
}

.ap-explore-form__input {
  border: var(--border-width-thin) solid var(--color-outline);
  border-radius: var(--border-radius-small);
  box-sizing: border-box;
  font-size: var(--font-size-m);
  min-width: 0;
  padding: var(--space-xs) var(--space-s);
  width: 100%;
}

.ap-explore-form__scope {
  display: flex;
  gap: var(--space-s);
}

.ap-explore-form__scope-label {
  align-items: center;
  cursor: pointer;
  display: flex;
  font-size: var(--font-size-s);
  gap: var(--space-xs);
}

.ap-explore-form__btn {
  background: var(--color-primary);
  border: none;
  border-radius: var(--border-radius-small);
  color: var(--color-on-primary);
  cursor: pointer;
  font-size: var(--font-size-s);
  padding: var(--space-xs) var(--space-m);
  white-space: nowrap;
}

.ap-explore-form__btn:hover {
  opacity: 0.85;
}

.ap-explore-error {
  background: color-mix(in srgb, var(--color-error) 10%, transparent);
  border: var(--border-width-thin) solid var(--color-error);
  border-radius: var(--border-radius-small);
  color: var(--color-error);
  margin-bottom: var(--space-m);
  padding: var(--space-s) var(--space-m);
}

@media (max-width: 640px) {
  .ap-explore-form__row {
    flex-direction: column;
    align-items: stretch;
  }

  .ap-explore-form__btn {
    width: 100%;
  }
}

/* ---------- Autocomplete dropdown ---------- */

.ap-explore-autocomplete {
  flex: 1;
  min-width: 0;
  position: relative;
}

.ap-explore-autocomplete__dropdown {
  background: var(--color-background);
  border: var(--border-width-thin) solid var(--color-outline);
  border-radius: var(--border-radius-small);
  box-shadow: 0 4px 12px hsl(var(--tint-neutral) 10% / 0.15);
  left: 0;
  max-height: 320px;
  overflow-y: auto;
  position: absolute;
  right: 0;
  top: 100%;
  z-index: 100;
}

.ap-explore-autocomplete__item {
  align-items: center;
  background: none;
  border: none;
  color: var(--color-on-background);
  cursor: pointer;
  display: flex;
  font-family: inherit;
  font-size: var(--font-size-s);
  gap: var(--space-s);
  padding: var(--space-s) var(--space-m);
  text-align: left;
  width: 100%;
}

.ap-explore-autocomplete__item:hover,
.ap-explore-autocomplete__item--highlighted {
  background: var(--color-offset);
}

.ap-explore-autocomplete__domain {
  flex-shrink: 0;
  font-weight: 600;
}

.ap-explore-autocomplete__meta {
  color: var(--color-on-offset);
  display: flex;
  flex: 1;
  gap: var(--space-xs);
  min-width: 0;
}

.ap-explore-autocomplete__software {
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  border-radius: var(--border-radius-small);
  font-size: var(--font-size-xs);
  padding: 1px 6px;
  white-space: nowrap;
}

.ap-explore-autocomplete__mau {
  font-size: var(--font-size-xs);
  white-space: nowrap;
}

.ap-explore-autocomplete__status {
  flex-shrink: 0;
  font-size: var(--font-size-s);
}

.ap-explore-autocomplete__checking {
  opacity: 0.5;
}

/* ---------- Popular accounts autocomplete ---------- */

.ap-lookup-autocomplete {
  flex: 1;
  min-width: 0;
  position: relative;
}

.ap-lookup-autocomplete__dropdown {
  background: var(--color-background);
  border: var(--border-width-thin) solid var(--color-outline);
  border-radius: var(--border-radius-small);
  box-shadow: 0 4px 12px hsl(var(--tint-neutral) 10% / 0.15);
  left: 0;
  max-height: 320px;
  overflow-y: auto;
  position: absolute;
  right: 0;
  top: 100%;
  z-index: 100;
}

.ap-lookup-autocomplete__item {
  align-items: center;
  background: none;
  border: none;
  color: var(--color-on-background);
  cursor: pointer;
  display: flex;
  font-family: inherit;
  font-size: var(--font-size-s);
  gap: var(--space-s);
  padding: var(--space-s) var(--space-m);
  text-align: left;
  width: 100%;
}

.ap-lookup-autocomplete__item:hover,
.ap-lookup-autocomplete__item--highlighted {
  background: var(--color-offset);
}

.ap-lookup-autocomplete__avatar {
  border-radius: 50%;
  flex-shrink: 0;
  height: 28px;
  object-fit: cover;
  width: 28px;
}

.ap-lookup-autocomplete__info {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
}

.ap-lookup-autocomplete__name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ap-lookup-autocomplete__handle {
  color: var(--color-on-offset);
  font-size: var(--font-size-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ap-lookup-autocomplete__followers {
  color: var(--color-on-offset);
  flex-shrink: 0;
  font-size: var(--font-size-xs);
  white-space: nowrap;
}

/* ==========================================================================
   Explore: Tabbed Design
   ========================================================================== */

/* Tab bar wrapper: enables position:relative for fade gradient overlay */
.ap-explore-tabs-container {
  position: relative;
}

/* Tab bar with right-edge fade to indicate horizontal overflow */
.ap-explore-tabs-nav {
  padding-right: var(--space-l);
  position: relative;
}

.ap-explore-tabs-nav::after {
  background: linear-gradient(to right, transparent, var(--color-background) 80%);
  content: "";
  height: 100%;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: 0;
  width: 40px;
}

/* Tab wrapper: holds tab button + reorder/close controls together */
.ap-tab-wrapper {
  align-items: stretch;
  display: inline-flex;
  position: relative;
}

/* Show controls on hover or when the tab is active */
.ap-tab-controls {
  align-items: center;
  display: none;
  gap: 1px;
}

.ap-tab-wrapper:hover .ap-tab-controls,
.ap-tab-wrapper:focus-within .ap-tab-controls {
  display: flex;
}

/* Individual control buttons (↑ ↓ ×) */
.ap-tab-control {
  background: none;
  border: none;
  color: var(--color-on-offset);
  cursor: pointer;
  font-size: var(--font-size-xs);
  line-height: 1;
  padding: 2px 4px;
}

.ap-tab-control:hover {
  color: var(--color-on-background);
}

.ap-tab-control:disabled {
  cursor: default;
  opacity: 0.3;
}

.ap-tab-control--remove {
  color: var(--color-on-offset);
  font-size: var(--font-size-s);
}

.ap-tab-control--remove:hover {
  color: var(--color-error);
}

/* Truncate long domain names in tab labels */
.ap-tab__label {
  display: inline-block;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Scope badges on instance tabs */
.ap-tab__badge {
  border-radius: var(--border-radius-small);
  font-size: 0.65em;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-left: var(--space-xs);
  padding: 1px 4px;
  text-transform: uppercase;
  vertical-align: middle;
}

.ap-tab__badge--local {
  background: color-mix(in srgb, var(--color-primary) 15%, transparent);
  color: var(--color-primary-on-background);
}

.ap-tab__badge--federated {
  background: color-mix(in srgb, var(--color-purple45) 15%, transparent);
  color: var(--color-purple45);
}

/* +# button for adding hashtag tabs */
.ap-tab--add {
  font-family: monospace;
  font-weight: 700;
  letter-spacing: -0.05em;
}

/* Inline hashtag form that appears when +# is clicked */
.ap-tab-add-hashtag {
  align-items: center;
  display: inline-flex;
  gap: var(--space-xs);
}

.ap-tab-hashtag-form {
  align-items: center;
  display: flex;
  gap: var(--space-xs);
}

.ap-tab-hashtag-form__prefix {
  color: var(--color-on-offset);
  font-weight: 600;
}

.ap-tab-hashtag-form__input {
  border: var(--border-width-thin) solid var(--color-outline);
  border-radius: var(--border-radius-small);
  font-family: inherit;
  font-size: var(--font-size-s);
  padding: 2px var(--space-s);
  width: 8em;
}

.ap-tab-hashtag-form__input:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: -1px;
}

.ap-tab-hashtag-form__btn {
  background: var(--color-primary);
  border: none;
  border-radius: var(--border-radius-small);
  color: var(--color-on-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-s);
  padding: 2px var(--space-s);
  white-space: nowrap;
}

.ap-tab-hashtag-form__btn:hover {
  opacity: 0.85;
}

/* "Pin as tab" button in search results area */
.ap-explore-pin-bar {
  margin-bottom: var(--space-s);
}

.ap-explore-pin-btn {
  background: none;
  border: var(--border-width-thin) solid var(--color-primary-on-background);
  border-radius: var(--border-radius-small);
  color: var(--color-primary-on-background);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-s);
  padding: var(--space-xs) var(--space-m);
}

.ap-explore-pin-btn:hover {
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

.ap-explore-pin-btn:disabled {
  cursor: default;
  opacity: 0.6;
}

/* Hashtag form row inside the search form */
.ap-explore-form__hashtag-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-s);
}

.ap-explore-form__hashtag-label {
  color: var(--color-on-offset);
  font-size: var(--font-size-s);
  white-space: nowrap;
}

.ap-explore-form__hashtag-prefix {
  color: var(--color-on-offset);
  font-weight: 600;
}

.ap-explore-form__hashtag-hint {
  color: var(--color-on-offset);
  font-size: var(--font-size-xs);
  flex-basis: 100%;
}

.ap-explore-form__input--hashtag {
  max-width: 200px;
  width: auto;
}

/* Tab panel containers */
.ap-explore-instance-panel,
.ap-explore-hashtag-panel {
  min-height: 120px;
}

/* Loading state */
.ap-explore-tab-loading {
  align-items: center;
  color: var(--color-on-offset);
  display: flex;
  justify-content: center;
  padding: var(--space-xl);
}

.ap-explore-tab-loading--more {
  padding-block: var(--space-m);
}

.ap-explore-tab-loading__text {
  font-size: var(--font-size-s);
}

/* Error state */
.ap-explore-tab-error {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  padding: var(--space-xl);
}

.ap-explore-tab-error__message {
  color: var(--color-error);
  font-size: var(--font-size-s);
  margin: 0;
}

.ap-explore-tab-error__retry {
  background: none;
  border: var(--border-width-thin) solid var(--color-primary-on-background);
  border-radius: var(--border-radius-small);
  color: var(--color-primary-on-background);
  cursor: pointer;
  font-size: var(--font-size-s);
  padding: var(--space-xs) var(--space-s);
}

.ap-explore-tab-error__retry:hover {
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

/* Empty state */
.ap-explore-tab-empty {
  color: var(--color-on-offset);
  font-size: var(--font-size-s);
  padding: var(--space-xl);
  text-align: center;
}

/* Infinite scroll sentinel — zero height, invisible */
.ap-tab-sentinel {
  height: 1px;
  visibility: hidden;
}