:root {
  color-scheme: dark;
  --bg: #0a0b0c;
  --surface: #111315;
  --surface-raised: #17191c;
  --surface-soft: #1c1f22;
  --line: #262a2e;
  --line-strong: #383d42;
  --text: #f1f3ee;
  --text-muted: #91979d;
  --text-faint: #686f75;
  --accent: #d9ff55;
  --accent-ink: #101406;
  --danger: #ff7f6b;
  --radius: 8px;
  --page-pad: clamp(18px, 3.2vw, 52px);
  --shadow: 0 24px 80px rgb(0 0 0 / 42%);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  scrollbar-color: var(--line-strong) var(--bg);
  scrollbar-width: thin;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body.is-locked {
  overflow: hidden;
}

button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

button:not(:disabled),
a {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

img {
  display: block;
  max-width: 100%;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 0;
  border: 0;
  margin: -1px;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: #0a0b0c;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 64px;
  padding: 0 var(--page-pad);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent);
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
}

.brand-name {
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.brand-context {
  padding-left: 10px;
  border-left: 1px solid var(--line-strong);
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.topbar-meta {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
  color: var(--text-muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.account-actions,
.signed-in-actions {
  display: flex;
  align-items: center;
  gap: 7px;
}

.topbar-button {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 11px;
  gap: 7px;
}

.topbar-button:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.topbar-button svg {
  width: 14px;
  height: 14px;
}

.username-label {
  max-width: 120px;
  overflow: hidden;
  color: var(--text-muted);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.source-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--text);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgb(217 255 85 / 10%);
}

.source-state.is-error .status-dot {
  background: var(--danger);
  box-shadow: 0 0 0 3px rgb(255 127 107 / 10%);
}

.page-shell {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 46px var(--page-pad) 72px;
}

.collection-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 30px;
  gap: 28px;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--text-faint);
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-family: "Arial Narrow", "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: clamp(30px, 3vw, 42px);
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.08;
}

.result-count {
  color: var(--text-faint);
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.search-field {
  display: flex;
  align-items: center;
  width: min(100%, 380px);
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text-faint);
  transition:
    border-color 160ms ease,
    background-color 160ms ease;
}

.toolbar-search {
  width: min(340px, 34vw);
}

.search-field:focus-within {
  border-color: var(--line-strong);
  background: var(--surface-raised);
}

.search-field svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  stroke-width: 1.8;
}

.search-field input {
  min-width: 0;
  flex: 1;
  height: 100%;
  padding: 0 10px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 13px;
}

.search-field input::placeholder {
  color: var(--text-faint);
}

kbd {
  display: inline-grid;
  min-width: 22px;
  height: 22px;
  padding: 0 5px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text-faint);
  font-family: inherit;
  font-size: 10px;
  line-height: 1;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  gap: 18px;
}

.filter-tabs {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  gap: 2px;
}

.filter-tab {
  min-height: 32px;
  padding: 0 14px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  white-space: nowrap;
  transition:
    background-color 150ms ease,
    color 150ms ease;
}

.filter-tab:hover {
  color: var(--text);
}

.filter-tab.is-active {
  background: var(--text);
  color: var(--bg);
  font-weight: 650;
}

.filter-tab-dislike {
  margin-left: 10px;
  color: var(--text-faint);
  font-size: 11px;
}

.filter-tab-dislike.is-active {
  background: var(--surface-raised);
  color: var(--text-muted);
  font-weight: 500;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sort-control {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-muted);
  gap: 7px;
}

.sort-control svg {
  width: 15px;
  height: 15px;
  stroke-width: 1.7;
}

.sort-control select {
  padding: 0 18px 0 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
}

.icon-button {
  display: inline-grid;
  width: 38px;
  height: 38px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-muted);
  transition:
    color 150ms ease,
    border-color 150ms ease,
    background-color 150ms ease;
}

.icon-button:hover,
.icon-button.is-active {
  border-color: var(--line-strong);
  background: var(--surface-raised);
  color: var(--text);
}

.icon-button svg {
  width: 17px;
  height: 17px;
  stroke-width: 1.7;
}

.thread-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 22px 18px;
}

.thread-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  contain: layout paint style;
}

.thread-card:hover {
  border-color: var(--line-strong);
  background: #131518;
  transform: none;
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  min-width: 0;
  gap: 12px;
}

.card-heading-copy {
  min-width: 0;
  flex: 1;
}

.card-title-button {
  display: -webkit-box;
  width: 100%;
  overflow: hidden;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  line-height: inherit;
  text-align: left;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.card-favorite {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-raised);
  color: var(--text-faint);
  transition:
    background-color 150ms ease,
    color 150ms ease,
    border-color 150ms ease;
}

.card-favorite:hover,
.card-favorite.is-favorite {
  border-color: var(--line-strong);
  background: var(--surface-raised);
}

.card-favorite.is-favorite {
  color: var(--accent);
}

.card-favorite svg {
  width: 15px;
  height: 15px;
  stroke-width: 1.8;
}

.card-favorite.is-favorite svg {
  fill: currentColor;
}

.card-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 6px;
}

.card-dislike {
  display: grid;
  width: 32px;
  height: 32px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-raised);
  color: var(--text-faint);
}

.card-dislike:hover {
  border-color: var(--line-strong);
  color: var(--danger);
}

.card-dislike.is-active {
  border-color: rgb(255 127 107 / 55%);
  background: rgb(255 127 107 / 12%);
  color: var(--danger);
}

.card-dislike svg {
  width: 15px;
  height: 15px;
}

.card-title {
  color: var(--text);
  font-size: 17px;
  font-weight: 660;
  line-height: 1.42;
  text-wrap: pretty;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 13px;
  gap: 5px;
}

.preview-tile {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  min-width: 0;
  overflow: hidden;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  background: var(--surface-soft);
}

.preview-tile::after {
  position: absolute;
  inset: 0;
  border-radius: 3px;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 3%);
  content: "";
  pointer-events: none;
}

.preview-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
}

.preview-tile img.is-image-ready {
  opacity: 1;
}

.preview-tile:hover {
  border-color: rgb(217 255 85 / 65%);
}

.preview-tile:hover img {
  transform: none;
  opacity: 1;
}

.preview-more {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgb(5 6 7 / 66%);
  color: #fff;
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 20px;
  font-weight: 650;
}

.skeleton-card {
  aspect-ratio: 1.42;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

@keyframes skeleton-pulse {
  from {
    opacity: 0.52;
  }
  to {
    opacity: 0.92;
  }
}

.empty-state {
  display: grid;
  min-height: 360px;
  padding: 72px 24px;
  place-items: center;
  align-content: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  text-align: center;
}

.empty-icon {
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--text-faint);
}

.empty-icon svg {
  width: 18px;
  height: 18px;
}

.empty-state h2 {
  font-size: 16px;
  font-weight: 650;
}

.empty-state p {
  margin-top: 7px;
  color: var(--text-muted);
  font-size: 12px;
}

.secondary-button {
  min-height: 36px;
  margin-top: 20px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: transparent;
  color: var(--text);
  font-size: 12px;
}

.secondary-button:hover {
  background: var(--surface-raised);
}

.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 32px;
  gap: 5px;
}

.page-icon-button,
.page-number {
  display: grid;
  width: 30px;
  height: 30px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.page-icon-button:hover,
.page-number:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.page-icon-button:disabled {
  opacity: 0.3;
  pointer-events: none;
}

.page-icon-button svg {
  width: 14px;
  height: 14px;
}

.page-numbers {
  display: flex;
  gap: 4px;
}

.page-number.is-current {
  border-color: var(--text);
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
}

.viewer-layer {
  position: fixed;
  z-index: 60;
  inset: 0;
  background: var(--bg);
}

.viewer-shell {
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
  flex-direction: column;
  background: #08090a;
}

@keyframes viewer-in {
  from {
    opacity: 0;
    transform: scale(0.995);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.viewer-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  flex: 0 0 58px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: #0d0f10;
  gap: 16px;
}

.viewer-topbar-left,
.viewer-topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.viewer-topbar-left {
  min-width: 0;
  flex: 1;
}

.viewer-back {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
  color: var(--text-muted);
}

.viewer-back:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.viewer-back svg {
  width: 16px;
  height: 16px;
}

.viewer-brand {
  margin-left: 2px;
  color: var(--accent);
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.toolbar-button {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 11px;
  text-decoration: none;
  gap: 7px;
}

.toolbar-button:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.toolbar-button.is-favorite {
  color: var(--accent);
}

.toolbar-button.is-disliked {
  border-color: rgb(255 127 107 / 45%);
  color: var(--danger);
}

.toolbar-button svg {
  width: 14px;
  height: 14px;
}

.viewer-main {
  display: grid;
  min-height: 0;
  height: calc(100vh - 58px);
  height: calc(100dvh - 58px);
  max-height: calc(100vh - 58px);
  max-height: calc(100dvh - 58px);
  flex: 0 0 auto;
  grid-template-columns: minmax(0, 1fr) 380px;
  grid-template-rows: minmax(0, 1fr);
  overflow: hidden;
}

.viewer-stage {
  position: relative;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 54px 68px 16px;
  min-width: 0;
  min-height: 0;
  height: 100%;
  max-height: 100%;
  overflow: hidden;
  background: #050607;
}

.viewer-stage-toolbar {
  position: absolute;
  z-index: 2;
  top: 14px;
  right: 18px;
  left: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.viewer-stage-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: auto;
}

.viewer-counter {
  display: inline-flex;
  height: 27px;
  padding: 0 9px;
  align-items: center;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 4px;
  background: rgb(11 12 13 / 82%);
  color: var(--text-muted);
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;

}

.viewer-control {
  display: grid;
  width: 34px;
  height: 34px;
  padding: 0;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 5px;
  background: rgb(11 12 13 / 82%);
  color: var(--text-muted);
  pointer-events: auto;

}

.viewer-control:hover {
  border-color: rgb(255 255 255 / 22%);
  color: var(--text);
}

.viewer-control.is-favorite {
  border-color: rgb(217 255 85 / 40%);
  color: var(--accent);
}

.viewer-control.is-favorite svg {
  fill: currentColor;
}

.viewer-control.viewer-like {
  display: inline-flex;
  width: auto;
  gap: 7px;
  padding: 0 11px;
  white-space: nowrap;
}

.viewer-like:disabled {
  opacity: 0.6;
  cursor: wait;
}

.viewer-control svg {
  width: 15px;
  height: 15px;
}

.viewer-main-image-button {
  position: relative;
  min-width: 0;
  min-height: 0;
  width: 100%;
  height: 100%;
  display: block;
  overflow: hidden;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.viewer-main-image-button img {
  /* A definite box keeps the image's intrinsic size out of grid track sizing. */
  position: absolute;
  inset: 0;
  display: block;
  min-width: 0;
  min-height: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  border-radius: 3px;
  object-fit: contain;
  opacity: 1;
}

.viewer-image-caption {
  min-width: 0;
  margin: 0;
  color: var(--text);
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
  text-align: center;
}

.viewer-caption-title,
.viewer-caption-position {
  display: block;
}

.viewer-caption-position {
  margin-top: 3px;
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.viewer-main-image-button img.is-ready {
  opacity: 1;
}

.viewer-main-image-button:hover img {
  filter: none;
}

.viewer-arrow {
  position: absolute;
  z-index: 3;
  top: 50%;
  display: grid;
  width: 40px;
  height: 48px;
  padding: 0;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 9%);
  border-radius: 5px;
  background: rgb(12 13 14 / 76%);
  color: var(--text-muted);

  transform: translateY(-50%);
}

.viewer-arrow:hover {
  border-color: rgb(255 255 255 / 20%);
  color: var(--text);
}

.viewer-arrow svg {
  width: 19px;
  height: 19px;
}

.viewer-arrow-prev {
  left: 14px;
}

.viewer-arrow-next {
  right: 14px;
}

.viewer-sidebar {
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow-y: auto;
  border-left: 1px solid var(--line);
  background: var(--surface);
  overscroll-behavior: contain;
}

.viewer-info {
  padding: 28px 24px 24px;
  border-bottom: 1px solid var(--line);
}

.viewer-title {
  font-size: 24px;
  font-weight: 680;
  letter-spacing: 0;
  line-height: 1.32;
  text-wrap: pretty;
}

.viewer-date {
  display: block;
  margin-top: 9px;
  color: var(--text-faint);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.viewer-excerpt {
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.85;
  text-wrap: pretty;
}

.viewer-preview-section {
  padding: 22px 24px 26px;
}

.viewer-previews {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.viewer-thumb {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  background: var(--surface-soft);
}

.viewer-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0b0c0d;
  opacity: 1;
}

.viewer-thumb img.is-image-ready {
  opacity: 1;
}

.viewer-thumb:hover,
.viewer-thumb.is-active {
  border-color: var(--accent);
}

.viewer-thumb:hover img,
.viewer-thumb.is-active img {
  transform: none;
  opacity: 1;
}

.viewer-thumb-index {
  position: absolute;
  right: 5px;
  bottom: 5px;
  display: grid;
  min-width: 20px;
  height: 17px;
  padding: 0 4px;
  place-items: center;
  border-radius: 3px;
  background: rgb(0 0 0 / 70%);
  color: #fff;
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 9px;
  font-variant-numeric: tabular-nums;
}

.lightbox {
  position: fixed;
  z-index: 90;
  inset: 0;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 64px;
  grid-template-rows: minmax(0, 1fr);
  align-items: center;
  padding: 64px 28px 28px;
  background: rgb(4 5 6 / 97%);
  animation: fade-in 150ms ease both;
}

.lightbox-topbar {
  position: absolute;
  top: 14px;
  right: 18px;
  left: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lightbox-counter {
  color: var(--text-muted);
  font-family: "Arial Narrow", "Segoe UI", sans-serif;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.lightbox-close {
  border-color: rgb(255 255 255 / 14%);
  background: var(--surface);
  color: var(--text);
}

.lightbox-stage {
  position: relative;
  min-width: 0;
  min-height: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  margin: 0;
}

.lightbox-stage img {
  position: absolute;
  inset: 0;
  min-width: 0;
  min-height: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
  object-fit: contain;
  opacity: 0;
  box-shadow: 0 18px 80px rgb(0 0 0 / 50%);
  transition: none;
}

.lightbox-stage img.is-ready {
  opacity: 1;
}

.lightbox-nav {
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 13%);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
}

.lightbox-nav:hover {
  border-color: rgb(255 255 255 / 28%);
  background: var(--surface-raised);
}

.lightbox-nav:disabled {
  opacity: 0.28;
  pointer-events: none;
}

.lightbox-prev {
  justify-self: start;
}

.lightbox-next {
  justify-self: end;
}

.lightbox-nav svg {
  width: 20px;
  height: 20px;
}

.tooltip {
  position: fixed;
  z-index: 100;
  max-width: 180px;
  padding: 6px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: #1b1e21;
  color: var(--text);
  font-size: 10px;
  line-height: 1.3;
  pointer-events: none;
  box-shadow: 0 8px 22px rgb(0 0 0 / 35%);
}

.toast {
  position: fixed;
  z-index: 120;
  right: 22px;
  bottom: 22px;
  max-width: min(360px, calc(100vw - 44px));
  padding: 11px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #1a1d20;
  color: var(--text);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.modal-layer {
  position: fixed;
  z-index: 75;
  inset: 0;
  display: grid;
  padding: 20px;
  place-items: center;
}

.modal-scrim {
  position: absolute;
  inset: 0;
  padding: 0;
  border: 0;
  background: rgb(0 0 0 / 74%);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  z-index: 1;
  width: min(100%, 390px);
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 680;
}

.auth-form {
  display: grid;
  margin-top: 22px;
  gap: 14px;
}

.form-field {
  display: grid;
  color: var(--text-muted);
  font-size: 11px;
  gap: 7px;
}

.form-field input {
  width: 100%;
  height: 42px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 5px;
  outline: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.form-field input:focus {
  border-color: var(--line-strong);
}

.form-error {
  color: var(--danger);
  font-size: 11px;
}

.primary-button,
.danger-button {
  display: inline-flex;
  min-height: 40px;
  padding: 0 15px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 5px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 700;
}

.primary-button:disabled,
.danger-button:disabled {
  opacity: 0.55;
  cursor: wait;
}

.text-button {
  padding: 0;
  border: 0;
  margin-top: 16px;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
}

.text-button:hover {
  color: var(--text);
}

.confirm-card {
  width: min(100%, 430px);
}

.confirm-copy {
  margin-top: 18px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.7;
}

.confirm-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
  gap: 8px;
}

.confirm-actions .secondary-button {
  margin-top: 0;
}

.danger-button {
  background: var(--danger);
  color: #1a0906;
}

.collection-panel {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(1180px, calc(100vw - 40px));
  height: min(860px, calc(100vh - 40px));
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #0d0f10;
  box-shadow: var(--shadow);
  flex-direction: column;
}

.collection-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--line);
  gap: 18px;
}

.collection-header h2 {
  font-size: 24px;
}

.collection-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sync-status {
  color: var(--text-faint);
  font-size: 10px;
}

.collection-tabs {
  display: flex;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  gap: 4px;
}

.collection-content {
  min-height: 0;
  overflow-y: auto;
  padding: 22px;
}

.collection-image-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.collection-image-card {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-soft);
}

.collection-image-open {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-decoration: none;
}

.collection-image-open img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
}

.collection-image-open img.is-image-ready {
  opacity: 1;
}
.collection-image-open:hover img {
  transform: none;
}

.collection-image-open-hint {
  position: absolute;
  top: 7px;
  left: 7px;
  display: grid;
  width: 29px;
  height: 29px;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: 4px;
  background: rgb(0 0 0 / 72%);
  color: #fff;
  opacity: 0;
  pointer-events: none;

}

.collection-image-open:hover .collection-image-open-hint,
.collection-image-open:focus-visible .collection-image-open-hint {
  opacity: 1;
}

.collection-image-open-hint svg {
  width: 14px;
  height: 14px;
}

.collection-image-remove {
  position: absolute;
  right: 7px;
  top: 7px;
  display: grid;
  width: 28px;
  height: 28px;
  padding: 0;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: 4px;
  background: rgb(0 0 0 / 72%);
  color: #fff;

}

.collection-image-remove:hover {
  color: var(--danger);
}

.collection-image-remove svg {
  width: 14px;
  height: 14px;
}

.empty-collection {
  display: grid;
  min-height: 280px;
  place-items: center;
  border: 1px dashed var(--line-strong);
  border-radius: 6px;
  color: var(--text-faint);
  font-size: 12px;
}

.error-state {
  display: grid;
  min-height: 300px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 13px;
}

@media (max-width: 1360px) {
  .viewer-main {
    grid-template-columns: minmax(0, 1fr) 350px;
  }
}

@media (max-width: 980px) {
  .page-shell {
    padding-top: 34px;
  }

  .thread-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .collection-heading {
    align-items: stretch;
    flex-direction: column;
    margin-bottom: 24px;
  }

  .search-field {
    width: 100%;
  }

  .toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .filter-tabs {
    max-width: 100%;
    overflow-x: auto;
  }

  .toolbar-actions {
    width: 100%;
    justify-content: space-between;
  }

  .collection-image-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .viewer-main {
    display: block;
    overflow-y: auto;
  }

  .viewer-stage {
    height: 58vh;
    min-height: 360px;
  }

  .viewer-sidebar {
    overflow: visible;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 760px) {
  .thread-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  :root {
    --page-pad: 14px;
  }

  .topbar-inner {
    min-height: 56px;
  }

  .brand-context {
    display: none;
  }

  .topbar-meta {
    font-size: 10px;
  }

  .source-state,
  .username-label {
    display: none;
  }

  .page-shell {
    padding-top: 28px;
    padding-bottom: 48px;
  }

  h1 {
    font-size: 32px;
  }

  .thread-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .thread-card {
    padding: 12px;
  }

  .card-title {
    font-size: 16px;
  }

  .filter-tab {
    padding: 0 13px;
  }

  .sort-control select {
    max-width: 92px;
  }

  .viewer-topbar {
    min-height: 54px;
    flex-basis: 54px;
    padding: 0 10px;
  }

  .viewer-brand {
    display: none;
  }

  .viewer-topbar-actions .toolbar-button span {
    display: none;
  }

  .viewer-topbar-actions .toolbar-button {
    width: 34px;
    padding: 0;
    justify-content: center;
  }

  .viewer-stage {
    height: 52vh;
    min-height: 320px;
    padding: 50px 12px 12px;
  }

  .viewer-main {
    height: calc(100vh - 54px);
    height: calc(100dvh - 54px);
    max-height: calc(100vh - 54px);
    max-height: calc(100dvh - 54px);
  }

  .viewer-arrow {
    width: 34px;
    height: 42px;
  }

  .viewer-arrow-prev {
    left: 6px;
  }

  .viewer-arrow-next {
    right: 6px;
  }

  .viewer-info {
    padding: 24px 14px 20px;
  }

  .viewer-title {
    font-size: 22px;
  }

  .viewer-preview-section {
    padding: 18px 14px 24px;
  }

  .viewer-previews {
    gap: 4px;
  }

  .viewer-control {
    width: 34px;
    height: 34px;
  }

  .pagination-bar {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .page-icon-button,
  .page-number {
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
  }

  .page-numbers {
    flex: 0 0 auto;
  }

  .modal-layer {
    padding: 10px;
  }

  .collection-panel {
    width: 100%;
    height: calc(100vh - 20px);
  }

  .collection-header {
    padding: 16px 14px 13px;
  }

  .collection-header h2 {
    font-size: 20px;
  }

  .collection-tabs {
    padding: 10px 14px;
  }

  .collection-content {
    padding: 14px;
  }

  .collection-image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .lightbox {
    grid-template-columns: 1fr;
    padding: 58px 12px 86px;
  }

  .lightbox-nav {
    position: absolute;
    bottom: 22px;
  }

  .lightbox-prev {
    left: calc(50% - 58px);
  }

  .lightbox-next {
    right: calc(50% - 58px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Image lists do not animate while the pointer moves across loading pictures. */
.thread-card *,
.collection-image-card *,
.viewer-thumb,
.viewer-thumb *,
.viewer-main-image-button img {
  transition: none;
  animation: none;
}

.image-liked-badge {
  position: absolute;
  top: 5px;
  left: 5px;
  display: grid;
  width: 23px;
  height: 23px;
  place-items: center;
  border-radius: 4px;
  background: #17191c;
  color: var(--accent);
  pointer-events: none;
}

.image-liked-badge svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  stroke: currentColor;
  stroke-width: 1.5;
}

/* Keep image swaps and offscreen previews from repainting the whole document. */
.viewer-main-image-button { contain: strict; }
.viewer-stage { contain: layout paint; }
.preview-grid { content-visibility: auto; contain-intrinsic-size: auto 170px; aspect-ratio: 2; }
.preview-grid:has(.preview-tile:last-child:nth-child(-n+3)) { aspect-ratio: 4; }