/* Library workspace. Shared typography, palettes and site navigation live in shared/. */
.atlas-paired-home {
  --library-gutter: clamp(20px, 3.35vw, 56px);
  --library-width: 1680px;
}
.intro, .collection, #about {
  width: 100%;
  max-width: var(--library-width);
  margin-inline: auto;
  padding-inline: var(--library-gutter);
}
.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 24px;
}
.intro-main { min-width: 0; }
.intro h1 {
  font-family: var(--display, var(--sans));
  font-size: clamp(28px, 2.5vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.035em;
}
.intro-copy {
  margin-top: 12px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}
.saved-references {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  gap: 10px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--surface);
  font-size: 15px;
  font-weight: 600;
}
.saved-references:hover { border-color: var(--muted); background: var(--hover); }
.catalog-layout, .catalog-main { min-width: 0; }
.style-category-toolbar {
  display: grid;
  gap: 16px;
  padding: 16px 0;
  border-block: 1px solid var(--line);
}
.collection-guide { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.collection-guide h2 { font-size: 16px; font-weight: 650; line-height: 1.5; }
.collection-guide p { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; line-height: 1.6; }
#category-nav { display: flex; flex-wrap: wrap; gap: 8px; }
.category-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  text-align: left;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color .15s, background .15s;
}
.category-button:hover { background: var(--hover); border-color: var(--muted); }
.category-button[aria-current="true"] { background: var(--action-bg); border-color: var(--action-bg); color: var(--action-ink); }
.category-label { font-weight: 550; }
.category-count { font-size: 12px; font-variant-numeric: tabular-nums; opacity: .8; }
.category-load-status { font-size: 14px; color: var(--muted); }
.catalog-pagination { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 16px 0; color: var(--muted); font-size: 14px; }
.catalog-pagination[data-pagination="bottom"] { margin-top: 24px; border-top: 1px solid var(--line); }
.page-summary { font-variant-numeric: tabular-nums; }
.page-buttons { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.page-buttons button {
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
}
.page-buttons button[aria-current="page"] { background: var(--action-bg); border-color: var(--action-bg); color: var(--action-ink); font-weight: 650; }
.page-buttons button:hover:not(:disabled) { border-color: var(--muted); }
.page-buttons button:disabled { opacity: .45; }
.page-gap { padding-inline: 2px; }
.paired-catalog { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 24px; align-items: start; }
.empty-state { text-align: center; padding: 80px 24px; color: var(--muted); }
.empty-state > span { font-size: 48px; }
.empty-state h3 { font-size: 20px; color: var(--ink); margin: 16px 0; }
.empty-state button { margin-top: 8px; }
.preview-note { font-size: 16px; color: var(--muted); padding-block: 32px; }
#about { display: flex; justify-content: space-between; align-items: start; gap: 40px; padding-top: 32px; padding-bottom: 40px; margin-top: 28px; border-top: 1px solid var(--line); }
.footer-title { font-size: 16px; font-weight: 650; }
#about p { color: var(--muted); font-size: 14px; line-height: 1.7; margin-top: 8px; }
#about a { text-decoration: underline; text-underline-offset: 4px; }
#about .footer-note { max-width: 340px; margin-top: 0; }

/* Prompt workspace. The prompt language remains an independent control. */
#detail-dialog, #pair-dialog {
  margin: auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  width: min(1400px, calc(100vw - 48px));
  max-width: none;
  max-height: calc(100dvh - 48px);
  overflow: auto;
  overscroll-behavior: contain;
  box-shadow: 0 24px 96px #0005;
}
#detail-dialog::backdrop, #pair-dialog::backdrop { background: #101417b3; backdrop-filter: blur(5px); }
.detail-shell { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.icon-button { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--surface); font-size: 20px; flex-shrink: 0; }
.icon-button:hover { background: var(--hover); border-color: var(--muted); }
.close-detail { position: sticky; top: 20px; grid-column: 2; grid-row: 1; align-self: start; justify-self: end; z-index: 5; margin: 20px 20px -64px 0; }
.detail-content { grid-column: 2; grid-row: 1; min-width: 0; padding: 32px; }
.eyebrow { color: var(--muted); font-size: 14px; font-weight: 550; line-height: 1.6; }
.detail-content > .eyebrow { padding-right: 52px; }
.detail-title-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px 14px; margin: 8px 52px 14px 0; }
.detail-id { color: var(--muted); font-size: 20px; font-weight: 550; font-variant-numeric: tabular-nums; }
.detail-title-row h2 { font-family: var(--display, var(--sans)); font-size: 28px; line-height: 1.35; font-weight: 700; letter-spacing: -.025em; overflow-wrap: anywhere; }
.source-tag { color: var(--muted); font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; }
.source-tag span { display: inline-block; padding: 4px 8px; background: var(--surface-soft); border-radius: 4px; }
.detail-theme { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 16px; line-height: 1.7; }
.detail-theme > span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 14px; font-weight: 600; }
.language-switch { display: inline-flex; gap: 4px; max-width: 100%; margin-top: 24px; padding: 4px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.language-switch button { min-height: 44px; padding: 10px 20px; border-radius: 5px; font-size: 15px; color: var(--muted); }
.language-switch button[aria-pressed="true"] { color: var(--action-ink); background: var(--action-bg); font-weight: 600; }
.prompt-section { margin-top: 28px; }
.prompt-label { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.prompt-label h3 { font-size: 18px; font-weight: 650; line-height: 1.5; }
.copy-button, .download-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 6px; font-size: 15px; font-weight: 600; line-height: 1.5; background: var(--surface); color: var(--ink); }
.copy-button:hover { border-color: var(--muted); background: var(--hover); }
.download-button { background: var(--action-bg); color: var(--action-ink); border-color: var(--action-bg); }
.prompt-help { margin: 8px 0 12px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.prompt-text { padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.75; white-space: pre-wrap; overflow-wrap: anywhere; max-height: 340px; overflow: auto; scrollbar-width: thin; }
.detail-footnote { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.7; }
#detail-dialog.prompt-only { width: min(920px, calc(100vw - 48px)); }
.prompt-only .detail-shell { display: block; }
.prompt-only .detail-visual { display: none; }
.prompt-only .detail-content { padding: 36px 40px; }
.prompt-only .close-detail { float: right; margin: 20px 20px -64px 0; }
.detail-visual { grid-column: 1; grid-row: 1; padding: 24px; background: var(--surface-soft); min-width: 0; }
.image-stage { display: flex; align-items: center; justify-content: center; position: relative; min-height: 320px; overflow: auto; background: var(--paper-deep); border: 1px solid var(--line); border-radius: 8px; scrollbar-width: thin; }
.image-stage img { display: block; max-width: 100%; max-height: 65vh; height: auto; object-fit: contain; cursor: zoom-in; }
.image-stage.is-zoomed { display: block; max-height: 65vh; }
.image-stage.is-zoomed img { max-width: none; max-height: none; cursor: zoom-out; }
.image-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; padding-block: 16px; font-size: 15px; }
.text-button { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 0; font-size: 15px; text-decoration: underline; text-underline-offset: 4px; }
.generation-info { display: flex; flex-wrap: wrap; gap: 8px 20px; padding-top: 16px; margin-top: 8px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.generation-info .model { width: 100%; font-size: 15px; color: var(--ink); font-weight: 600; }
.download-hint, .quality-note { color: var(--muted); font-size: 14px; line-height: 1.7; margin-block: 12px; }
.detail-placeholder, .pending-visual { display: grid; justify-items: center; align-content: center; gap: 12px; min-height: 280px; padding: 32px; color: var(--muted); text-align: center; }
.detail-placeholder > span { font-size: 24px; font-weight: 600; }
.detail-placeholder p, .pending-visual { font-size: 16px; }
.pending-visual small { font-size: 14px; }
.toast { position: fixed; z-index: var(--z-toast, 60); bottom: 28px; left: 50%; transform: translate(-50%, 12px); width: max-content; max-width: calc(100vw - 32px); padding: 14px 20px; border-radius: 8px; color: var(--action-ink); background: var(--action-bg); font-size: 15px; line-height: 1.5; opacity: 0; pointer-events: none; transition: opacity .18s, transform .18s; box-shadow: 0 8px 24px #0003; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
body.modal-open { overflow: hidden; }
.scroll-controls { position: fixed; right: 24px; bottom: 24px; z-index: 20; }
.scroll-controls button { display: flex; align-items: center; justify-content: center; gap: 8px; min-width: 44px; min-height: 44px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--surface); box-shadow: 0 4px 16px #0002; font-size: 20px; }
.scroll-controls button span { font-size: 14px; font-weight: 600; }
.scroll-controls button:hover { background: var(--hover); }

@media (max-width: 1279px) { .paired-catalog { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 980px) {
  .paired-catalog { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .intro { padding-top: 28px; padding-bottom: 24px; }
  .collection-guide { align-items: start; flex-direction: column; gap: 8px; }
  .detail-shell { grid-template-columns: minmax(0, 1fr); }
  .detail-visual { grid-column: 1; grid-row: 2; }
  .detail-content, .close-detail { grid-column: 1; grid-row: 1; }
}
@media (max-width: 640px) {
  .intro { align-items: start; flex-direction: column; gap: 20px; }
  .intro h1 { font-size: 30px; }
  .saved-references { align-self: start; }
  .paired-catalog { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .style-category-toolbar { padding-block: 20px; }
  .category-button { padding-inline: 12px; }
  .catalog-pagination { gap: 12px; }
  .page-buttons { gap: 8px; }
  .page-buttons button { padding-inline: 10px; }
  #about { flex-direction: column; gap: 20px; }
  #detail-dialog, #detail-dialog.prompt-only, #pair-dialog { width: 100%; max-height: 100dvh; height: 100dvh; border: 0; border-radius: 0; margin: 0; }
  .detail-content, .prompt-only .detail-content { padding: 28px 20px; }
  .detail-title-row { gap: 8px 12px; }
  .detail-title-row h2 { font-size: 24px; }
  .close-detail, .prompt-only .close-detail { top: 12px; margin: 12px 12px -56px 0; }
  .prompt-label h3 { font-size: 17px; }
  .prompt-text { padding: 16px; max-height: 360px; }
  .scroll-controls { right: 16px; bottom: 16px; }
  .scroll-controls button { padding: 8px; }
  .scroll-controls button span { display: none; }
}