:root {
  --bg-base: #efe6d6;
  --bg-panel: #faf4e9;
  --bg-white: #fffdf7;
  --bg-secondary: #f0e6d5;

  --color-pink: #ff7aa3;
  --color-yellow: #ffd966;
  --color-blue: #6ba4ff;
  --color-green: #5fe0a8;
  --color-gray: #999999;

  --text-primary: #000000;
  --text-secondary: #5e5346;
  --text-tertiary: #948778;

  --border-primary: #000000;
  --border-secondary: #d8cbb8;

  --border-thick: 3px solid var(--border-primary);
  --border-medium: 2px solid var(--border-primary);
  --border-thin: 1px solid var(--border-secondary);

  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --radius-xxs: 6px;

  --shadow-large: 6px 6px 0 rgba(0, 0, 0, 0.15);
  --shadow-medium: 4px 4px 0 rgba(0, 0, 0, 0.15);
  --shadow-small: 2px 2px 0 rgba(0, 0, 0, 0.15);
  --shadow-focus: 0 0 0 2px rgba(0, 0, 0, 0.1);

  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;

  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans SC", "Microsoft YaHei", sans-serif;

  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 15px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 28px;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --pattern-dot: rgba(0, 0, 0, 0.08);
  --backdrop: rgba(0, 0, 0, 0.55);
}

:root[data-theme='dark'] {
  --bg-base: #1f1812;
  --bg-panel: #2a221c;
  --bg-white: #382f28;
  --bg-secondary: #44372d;

  --text-primary: #fff7ef;
  --text-secondary: #d6c7ba;
  --text-tertiary: #b19f90;

  --border-secondary: #5a4b3e;
  --pattern-dot: rgba(255, 248, 238, 0.09);
  --backdrop: rgba(0, 0, 0, 0.72);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  position: relative;
  min-height: 100vh;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

body::before {
  content: '';
  position: fixed;
  inset: -20%;
  background-image: radial-gradient(circle, var(--pattern-dot) 1.3px, transparent 1.3px);
  background-size: 20px 20px;
  transform: rotate(30deg);
  transform-origin: center;
  pointer-events: none;
  z-index: 0;
}

button,
input,
textarea,
select,
a {
  font: inherit;
}

img {
  max-width: 100%;
}

.neo-interactive {
  transform: translate(0, 0);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.neo-interactive:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-small);
}

.neo-interactive:focus-visible,
.btn:focus-visible,
.input-field:focus,
.textarea-field:focus,
.select-field:focus,
.tab:focus-visible,
.toggle:focus-visible {
  outline: none;
  box-shadow: var(--shadow-medium), var(--shadow-focus);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(1440px, calc(100vw - 32px));
  margin: 20px auto 40px;
}

.card {
  background: var(--bg-panel);
  border: var(--border-thick);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-large);
}

.hero-panel {
  display: grid;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

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

.hero-title-row .hero-title {
  flex: 1;
}

.hero-title-row .theme-note {
  margin-left: auto;
}

.hero-logo {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  border: 3px solid var(--border-primary);
  box-shadow: var(--shadow-medium);
  object-fit: cover;
  flex-shrink: 0;
}

.hero-title {
  margin: 0;
  font-size: 32px;
  line-height: 1;
  font-weight: 800;
}

.hero-desc {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.65;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.hero-note {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-small);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}

.theme-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.note-yellow { background: var(--color-yellow); color: #000; }
.note-blue { background: var(--color-blue); color: #000; }
.note-white { background: var(--bg-white); color: var(--text-primary); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  min-width: 120px;
  padding: var(--spacing-lg);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  text-align: left;
}

.stat-yellow { background: var(--color-yellow); color: #000; }
.stat-blue { background: var(--color-blue); color: #000; }
.stat-green { background: var(--color-green); color: #000; }
.stat-pink { background: var(--color-pink); color: #000; }

.stat-label {
  margin-bottom: 8px;
  color: rgba(0, 0, 0, 0.72);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-value {
  color: #000;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
}

.stat-value-text {
  font-size: var(--font-size-lg);
  line-height: 1.35;
  word-break: break-word;
}

.app-grid {
  display: grid;
  grid-template-columns: 390px minmax(0, 1fr);
  gap: var(--spacing-lg);
  transition: grid-template-columns 0.3s ease;
}

.app-grid.sidebar-collapsed {
  grid-template-columns: 0px minmax(0, 1fr);
  gap: 0;
}

.sidebar-panel {
  position: sticky;
  top: 16px;
  align-self: start;
  min-width: 390px;
  overflow: hidden;
  transition: opacity 0.2s ease, padding 0.3s ease, border-width 0.3s ease, box-shadow 0.3s ease;
}

.app-grid.sidebar-collapsed .sidebar-panel {
  opacity: 0;
  padding: 0;
  border-width: 0;
  box-shadow: none;
  pointer-events: none;
}

.sidebar-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: var(--border-thick);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-medium);
  font-weight: var(--font-weight-semibold);
  background: var(--bg-white);
  color: var(--text-primary);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sidebar-toggle:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-small);
}

.sidebar-toggle-icon {
  display: inline-block;
  font-size: 18px;
  line-height: 1;
  transition: transform 0.3s ease;
}

.sidebar-collapsed-active .sidebar-toggle-icon {
  transform: rotate(90deg);
}


.main-column {
  display: grid;
  gap: var(--spacing-lg);
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

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

.sidebar-collapse-btn {
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
}

.panel-head-stack {
  flex-direction: column;
  align-items: stretch;
}

.card-title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.card-desc {
  margin: 8px 0 0;
  color: var(--text-secondary);
  line-height: 1.55;
}

.model-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.settings-form {
  display: grid;
  gap: var(--spacing-md);
}

.field-row.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
  align-items: start;
}

.field-block {
  display: grid;
  gap: 8px;
}

.field-label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
}

.field-help,
.size-help {
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
  line-height: 1.5;
  margin: 0;
}

.input-field,
.textarea-field,
.select-field {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-white);
  border: var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  outline: none;
}

.input-field::placeholder,
.textarea-field::placeholder {
  color: var(--text-tertiary);
}

.textarea-field {
  min-height: 260px;
  resize: vertical;
  line-height: 1.7;
}

.size-builder {
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
}

.size-builder-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tab {
  padding: 10px 24px;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-medium);
}

.tab:hover {
  background: var(--bg-secondary);
}

.tab.active,
.tab.active:hover {
  background: var(--color-yellow);
}

.mode-builder {
  margin-bottom: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
}

.mode-builder-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.edit-image-panel {
  display: grid;
  gap: var(--spacing-md);
}

.edit-image-dropzone {
  display: grid;
  gap: 8px;
  padding: 18px;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  cursor: pointer;
}

.edit-image-dropzone.is-dragover {
  background: var(--color-blue);
}

.edit-image-dropzone-kicker {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
}

.edit-image-dropzone-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.edit-image-dropzone-desc,
.edit-image-meta {
  color: var(--text-secondary);
  line-height: 1.6;
  word-break: break-word;
}

.edit-image-preview {
  display: grid;
  gap: var(--spacing-md);
  padding: 16px;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
}

.edit-image-preview-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.edit-image-preview-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.edit-image-preview-frame {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-panel);
  border: var(--border-medium);
  border-radius: var(--radius-md);
}

.edit-image-preview-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: var(--bg-white);
}

.size-panel {
  display: grid;
  gap: var(--spacing-md);
}

.info-card {
  margin-top: var(--spacing-lg);
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-lg);
}

.info-card-title {
  margin-bottom: 10px;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.info-list {
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.toolbar-row,
.token-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.token-row {
  margin-top: 4px;
}

.btn,
.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: var(--border-thick);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  box-shadow: var(--shadow-medium);
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn:disabled,
.download-link:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow: var(--shadow-medium);
}

.btn-sm {
  padding: 8px 20px;
  font-size: var(--font-size-sm);
}

.btn-white { background: var(--bg-white); }
.btn-yellow { background: var(--color-yellow); }
.btn-pink { background: var(--color-pink); }
.btn-blue { background: var(--color-blue); }
.btn-green { background: var(--color-green); }

.mini-tag {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 14px;
  border: var(--border-medium);
  border-radius: var(--radius-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-small);
}

.mini-tag-blue { background: var(--color-blue); color: #000; }
.mini-tag-yellow { background: var(--color-yellow); color: #000; }
.mini-tag-green { background: var(--color-green); color: #000; }
.mini-tag-white { background: var(--bg-white); color: var(--text-primary); }

.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 16px;
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border: var(--border-medium);
  background: var(--bg-white);
}

.status-running { background: var(--color-blue); color: #000; }
.status-completed { background: var(--color-green); color: #000; }
.status-warning { background: var(--color-yellow); color: #000; }
.status-danger { background: var(--color-pink); color: #000; }
.status-queued { background: var(--bg-white); }

.meta-info {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: normal;
  word-break: break-word;
  box-shadow: var(--shadow-medium);
}

.error-box {
  margin-bottom: var(--spacing-md);
  padding: 16px 18px;
  background: #fff2f5;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  color: #000;
  line-height: 1.65;
  white-space: pre-wrap;
}

:root[data-theme='dark'] .error-box {
  background: #5c2736;
  color: #fff7ef;
}

.hidden {
  display: none !important;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.gallery.empty {
  display: block;
}

.empty-state {
  min-height: 320px;
  display: grid;
  place-items: center;
  text-align: center;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-2xl);
}

.empty-state-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  padding: 8px 14px;
  border: var(--border-medium);
  border-radius: var(--radius-xs);
  background: var(--color-yellow);
  color: #000;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.empty-title {
  margin-bottom: 10px;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.empty-desc {
  color: var(--text-secondary);
  line-height: 1.65;
}

.image-card {
  width: 100%;
  padding: 0;
  text-align: left;
  appearance: none;
  cursor: pointer;
  overflow: hidden;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
}

.image-card.is-selected {
  transform: translate(-4px, -4px);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.18);
}

.image-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: 14px 16px;
  border-bottom: var(--border-medium);
  background: var(--bg-secondary);
}

.image-index,
.image-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: var(--border-medium);
  border-radius: var(--radius-xs);
  background: var(--bg-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.image-chip {
  background: var(--color-green);
  color: #000;
}

.image-chip-running {
  background: var(--color-blue);
}

.image-chip-error {
  background: var(--color-pink);
}

.image-chip-success {
  background: var(--color-green);
}

.image-frame {
  aspect-ratio: 1 / 1;
  background: #f8f8f8;
}

.image-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #f8f8f8;
}

.image-placeholder {
  width: 100%;
  height: 100%;
  min-height: 200px;
  display: grid;
  place-items: center;
  padding: 18px;
  background: var(--bg-panel);
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: center;
}

.image-placeholder.is-error {
  background: #fff2f5;
  color: #000;
}

.toggle {
  position: relative;
  width: 56px;
  height: 32px;
  background: var(--color-gray);
  border: var(--border-thick);
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.3s ease;
  flex-shrink: 0;
}

.toggle.active {
  background: var(--color-green);
}

.toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: #000000;
  border-radius: 50%;
  transition: left 0.3s ease;
}

.toggle.active .toggle-knob {
  left: 27px;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
}

.lightbox.hidden {
  display: none;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: var(--backdrop);
}

.lightbox-shell {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: 20px;
}

.lightbox-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.lightbox-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

.lightbox-panel {
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: var(--bg-panel);
  border: var(--border-thick);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-large);
}

.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  display: block;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  background: var(--bg-white);
}

@media (max-width: 1180px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .app-grid,
  .app-grid.sidebar-collapsed {
    grid-template-columns: 1fr;
  }

  .sidebar-panel {
    position: static;
    min-width: 0;
    opacity: 1;
    padding: var(--spacing-xl);
    border-width: 3px;
    box-shadow: var(--shadow-large);
    pointer-events: auto;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    margin: 10px auto 24px;
  }

  .sidebar-toggle {
    display: none;
  }

  .card {
    padding: 18px;
  }

  .hero-title-row,
  .panel-head,
  .theme-note,
  .lightbox-topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-tags {
    flex-direction: column;
  }

  .hero-note {
    white-space: normal;
  }

  .hero-title {
    font-size: 30px;
  }

  .stats-grid,
  .field-row.two-col {
    grid-template-columns: 1fr;
  }

  .toolbar-row,
  .lightbox-actions,
  .edit-image-preview-head,
  .mode-builder-head {
    align-items: stretch;
  }

  .btn,
  .download-link,
  .lightbox-actions .btn,
  .tab {
    width: 100%;
  }

  .token-row {
    width: 100%;
  }

  .lightbox-shell {
    padding: 12px;
  }
}


.result-head-tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.gallery {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.history-batch {
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
}

.history-batch-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.history-batch-title-wrap {
  display: grid;
  gap: 6px;
}

.history-batch-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.history-batch-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.history-batch-meta {
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  word-break: break-word;
}

.history-prompt {
  padding: 14px 16px;
  background: var(--bg-panel);
  border: var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  line-height: 1.7;
  white-space: pre-wrap;
}

.history-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.history-placeholder {
  min-height: 120px;
  display: grid;
  place-items: center;
  padding: var(--spacing-lg);
  background: var(--bg-panel);
  border: var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-align: center;
}

@media (max-width: 760px) {
  .result-head-tools,
  .history-batch-head {
    flex-direction: column;
    align-items: stretch;
  }
}


.history-board {
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-lg);
}

.history-board-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.history-board-title-wrap {
  display: grid;
  gap: 6px;
}

.history-board-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.history-board-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.history-board-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: var(--spacing-lg);
  align-items: start;
}

.history-board-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--spacing-lg);
  align-content: start;
}

.history-detail {
  position: sticky;
  top: 16px;
}

.history-detail-card,
.history-detail-empty {
  background: var(--bg-panel);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
}

.history-detail-empty {
  min-height: 100%;
  padding: 22px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.history-detail-card {
  display: grid;
  gap: var(--spacing-md);
  padding: 16px;
}

.history-detail-preview {
  width: 100%;
  padding: 0;
  appearance: none;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-white);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-small);
}

.history-detail-image,
.history-detail-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: block;
}

.history-detail-image {
  object-fit: cover;
  background: var(--bg-white);
}

.history-detail-placeholder {
  display: grid;
  place-items: center;
  padding: 18px;
  background: var(--bg-panel);
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.7;
}

.history-detail-placeholder.is-error {
  background: #fff2f5;
  color: #000;
}

.history-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
}

.history-detail-meta,
.history-detail-prompt,
.history-detail-error,
.history-detail-reference {
  display: grid;
  gap: var(--spacing-md);
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: var(--border-medium);
  border-radius: var(--radius-sm);
  line-height: 1.6;
  word-break: break-word;
}

.history-detail-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.history-detail-text {
  color: var(--text-secondary);
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.history-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.history-detail-reference-preview {
  width: 100%;
  padding: 0;
  overflow: hidden;
  appearance: none;
  cursor: pointer;
  background: var(--bg-white);
  border: var(--border-medium);
  border-radius: var(--radius-md);
}

.history-detail-reference-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
  object-fit: contain;
  background: var(--bg-white);
}

:root[data-theme='dark'] .image-placeholder.is-error,
:root[data-theme='dark'] .history-detail-placeholder.is-error {
  background: #5c2736;
  color: #fff7ef;
}

@media (max-width: 1080px) {
  .history-board-body {
    grid-template-columns: 1fr;
  }

  .history-detail {
    position: static;
  }
}

@media (max-width: 760px) {
  .history-board-head,
  .history-detail-tags,
  .history-detail-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .history-board-list {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
}