/* Hallmark · gallery + inspector · user reference · P5 H4 E4 S5 R4 V4 */
* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body { margin: 0; background: var(--color-page); color: var(--color-ink); font: 14px/1.5 var(--font-body); }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, select { cursor: pointer; }
button { color: inherit; }
svg { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
:where(a, button, input, select, summary, pre):focus-visible { outline: 2px solid var(--color-accent); outline-offset: 4px; }
.app { height: calc(100svh - 32px); display: flex; flex-direction: column; max-width: 1660px; margin: var(--space-md) auto; background: var(--color-paper); border: 1px solid var(--color-rule); border-radius: var(--radius-card); }
.site-header { height: 72px; display: flex; align-items: center; gap: 56px; padding: 0 var(--space-lg); border-bottom: 1px solid var(--color-rule); }
.wordmark { display: flex; align-items: center; gap: 8px; font-size: 19px; font-weight: 720; letter-spacing: -.65px; white-space: nowrap; }
.brand-dot { width: 5px; height: 5px; margin-top: 3px; background: var(--color-accent); border-radius: 50%; }
.site-header nav { align-self: stretch; display: flex; align-items: stretch; gap: 30px; }
.site-header nav a { display: flex; align-items: center; position: relative; color: var(--color-muted); font-size: 13px; font-weight: 550; }
.site-header nav a[aria-current] { color: var(--color-ink); }
.site-header nav a[aria-current]::after { content: ''; position: absolute; height: 2px; background: var(--color-accent); bottom: -1px; left: 0; right: 0; }
.repository { margin-left: auto; }
.repository svg { width: 22px; height: 22px; stroke: none; }
.workspace { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
.catalog { overflow-y: auto; scrollbar-width: thin; padding: var(--space-lg); min-width: 0; }
.catalog-heading { display: flex; align-items: end; justify-content: space-between; gap: var(--space-sm); margin-bottom: 25px; }
h1, h2, p { margin: 0; }
h1 { font-size: clamp(25px, 2.2vw, 34px); line-height: 1.15; font-weight: 650; letter-spacing: -1.2px; }
.catalog-heading p { color: var(--color-muted); margin-top: 9px; font-size: 14px; }
.theme-count { color: var(--color-muted); font-size: 11px; white-space: nowrap; padding-bottom: 2px; }
.catalog-tools { display: flex; gap: var(--space-sm); margin-bottom: var(--space-md); }
.search-field { display: flex; align-items: center; gap: 8px; border: 1px solid var(--color-rule); border-radius: var(--radius-control); min-width: 0; flex: 1; padding: 0 10px; color: var(--color-muted); }
.search-field svg { width: 16px; height: 16px; }
.search-field input { width: 100%; min-width: 0; background: transparent; border: 0; height: 38px; color: var(--color-ink); font-size: 12px; outline: none; }
.search-field:focus-within { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.search-field input::placeholder { color: var(--color-muted); }
.segments { display: inline-flex; align-items: center; padding: 3px; border: 1px solid var(--color-rule); border-radius: var(--radius-control); min-width: 0; gap: 1px; }
.segments button { flex: 1; border: 0; border-radius: 4px; background: transparent; padding: 7px 12px; font-size: 11px; line-height: 18px; color: var(--color-muted); font-weight: 500; white-space: nowrap; transition: background var(--dur-fast), color var(--dur-fast); }
.segments button:hover { color: var(--color-ink); background: var(--color-subtle); }
.segments button[aria-pressed=true] { color: var(--color-accent); background: var(--color-selected); }
.theme-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px 13px; }
.theme-card { position: relative; min-width: 0; border: 1px solid var(--color-rule); border-radius: var(--radius-card); background: var(--color-paper); transition: border-color var(--dur-fast), box-shadow var(--dur-fast); }
.theme-card:hover { border-color: color-mix(in srgb, var(--color-muted), transparent 50%); }
.theme-card.selected { border-color: var(--color-accent); box-shadow: 0 0 0 1px var(--color-accent); }
.thumbnail { position: relative; height: 194px; margin: 6px 6px 0; border-radius: 7px; overflow: hidden; background: var(--material-bg); }
.mini-stage { position: absolute; width: 340px; left: 50%; top: 50%; transform: translate(-50%, -50%) scale(var(--mini-scale, .5)); transform-origin: center; font-size: 14px; }
.mini-stage > .s-panel { width: 100%; max-width: 100%; min-width: 0; }
.thumbnail[data-surface=glass] { background: radial-gradient(ellipse at 10% 40%, var(--thumb-glow), transparent 60%), linear-gradient(135deg, var(--thumb-sky), var(--thumb-floor)); }
.thumbnail[data-surface=porcelain] { background: var(--material-bg) url('./cases/marble.svg') center / 380px; }
.theme-choice { display: flex; align-items: end; justify-content: space-between; gap: 6px; width: 100%; height: 38px; border: 0; padding: 9px 10px 10px; background: transparent; text-align: left; font-weight: 600; font-size: 12px; border-radius: inherit; line-height: 18px; }
.theme-choice::after { content: ''; position: absolute; inset: 0; border-radius: inherit; }
.theme-choice:focus-visible { outline-offset: 3px; }
.card-category { font-size: 9px; font-weight: 400; color: var(--color-muted); }
.selected .theme-choice { color: var(--color-accent); }
.selection-mark { position: absolute; right: 11px; top: 11px; width: 23px; height: 23px; background: var(--color-accent); color: var(--color-paper); border: 2px solid var(--color-paper); border-radius: 50%; display: grid; place-items: center; pointer-events: none; z-index: 1; }
.selection-mark svg { width: 13px; height: 13px; stroke-width: 2; }
.empty-state { padding: 60px 20px; text-align: center; color: var(--color-muted); }
.empty-state .ui-button { margin-top: 14px; }
.gallery-footnote { font-size: 11px; color: var(--color-muted); margin-top: var(--space-lg); }
.gallery-footnote a { display: block; margin-top: 5px; text-decoration: underline; text-underline-offset: 3px; }
.inspector { border-left: 1px solid var(--color-rule); padding: var(--space-lg); min-width: 0; overflow-y: auto; scrollbar-width: thin; }
.inspector-heading { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); }
.eyebrow { font-size: 9px; letter-spacing: .15em; font-weight: 600; color: var(--color-muted); }
.inspector h2 { font-size: 28px; line-height: 1.2; letter-spacing: -.9px; font-weight: 650; margin-top: 5px; }
.theme-description { font-size: 13px; color: var(--color-muted); margin-top: 8px; margin-bottom: 20px; }
.preview-scene { position: relative; display: flex; align-items: center; justify-content: center; flex-direction: column; min-height: 470px; padding: 72px 28px 48px; border-radius: 9px; background: var(--material-bg); isolation: isolate; }
.landscape { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; stroke: none; border-radius: inherit; overflow: hidden; display: none; }
.preview-scene[data-surface=glass] .landscape { display: block; }
.sky-top { stop-color: var(--scene-sky); }
.sky-bottom { stop-color: var(--scene-horizon); }
.sun-core, .sun-edge { stop-color: var(--scene-glow); }
.ridge-far { fill: var(--scene-far); }
.ridge-mid { fill: var(--scene-mid); }
.ridge-near { fill: var(--scene-near); }
.preview-scene[data-surface=porcelain] { background-image: url('./cases/marble.svg'); background-size: 600px; }
.scene-toolbar { position: absolute; top: 18px; left: 20px; right: 20px; display: flex; align-items: center; justify-content: space-between; z-index: 2; color: var(--scene-ink); }
.colormap-control { display: flex; align-items: center; gap: 7px; padding-left: 9px; border-radius: 6px; background: color-mix(in srgb, var(--material-bg), transparent 40%); }
.scheme-swatch { width: 17px; height: 17px; border-radius: 50%; background: var(--scheme-swatch); border: 1px solid color-mix(in srgb, var(--scene-ink), transparent 65%); }
.colormap-control select { appearance: auto; max-width: 150px; background: transparent; color: inherit; border: 0; font-size: 11px; padding: 7px 7px 7px 0; border-radius: 4px; }
.colormap-control option { background: var(--color-paper); color: var(--color-ink); }
.scene-reset { display: grid; place-items: center; width: 31px; height: 31px; border: 1px solid color-mix(in srgb, var(--scene-ink), transparent 78%); background: color-mix(in srgb, var(--material-bg), transparent 60%); border-radius: 6px; color: inherit; }
.scene-reset:hover { background: color-mix(in srgb, var(--material-bg), transparent 20%); }
.scene-reset svg { width: 15px; height: 15px; }
.live-panel { width: 100%; max-width: 380px; font-size: 14px; }
.live-panel > .s-panel { width: 100%; min-width: 0; max-width: 100%; }
.preview-feedback { position: absolute; bottom: 15px; font-size: 10px; color: var(--scene-ink); }
.inspector-controls { margin-top: 18px; }
.axis-row { display: flex; align-items: center; gap: var(--space-sm); min-width: 0; padding: 17px 0; margin: 0; border: 0; border-bottom: 1px solid var(--color-rule); }
.axis-row legend { float: left; width: 84px; flex: none; font-size: 12px; font-weight: 550; padding: 0; }
.swatches { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.swatch { background: var(--swatch); border: 0; width: 28px; height: 28px; border-radius: 6px; padding: 0; position: relative; }
.swatch[aria-pressed=true]::after { content: ''; position: absolute; inset: -4px; border: 1.5px solid var(--color-accent); border-radius: 9px; }
.custom-accent { display: grid; place-items: center; position: relative; width: 28px; height: 28px; flex: none; border: 1px solid var(--color-rule); border-radius: 6px; color: var(--color-muted); }
.custom-accent input { position: absolute; inset: 0; opacity: 0; width: 100%; height: 100%; cursor: pointer; }
.custom-accent svg { width: 15px; height: 15px; pointer-events: none; }
.custom-accent:focus-within { outline: 2px solid var(--color-accent); outline-offset: 3px; }
#density-options { flex: 1; }
.more-axes { border-bottom: 1px solid var(--color-rule); }
.more-axes > summary { display: flex; align-items: center; justify-content: space-between; padding: 15px 0; font-size: 11px; color: var(--color-muted); cursor: pointer; list-style: none; }
.more-axes > summary::-webkit-details-marker { display: none; }
.more-axes > summary svg { width: 14px; height: 14px; }
.more-axes[open] > summary svg { transform: rotate(180deg); }
.extra-axes { padding-bottom: 16px; display: grid; gap: 18px; }
.range-axis { display: flex; align-items: center; gap: 16px; font-size: 12px; }
.range-axis input { width: 0; flex: 1; min-width: 0; height: 14px; accent-color: var(--color-accent); }
.range-axis output { min-width: 30px; text-align: right; color: var(--color-muted); font-size: 11px; }
.export-row { display: flex; align-items: center; gap: 9px; padding-top: var(--space-md); }
.export-row > a { font-size: 11px; color: var(--color-muted); margin-right: auto; }
.export-row > a:hover { color: var(--color-ink); }
.ui-button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; background: var(--color-paper); color: var(--color-ink); padding: 10px 16px; border: 1px solid var(--color-rule); border-radius: var(--radius-control); font-size: 12px; font-weight: 550; white-space: nowrap; }
.ui-button:hover { background: var(--color-subtle); }
.ui-button.primary { background: var(--color-ink); color: var(--color-paper); border-color: var(--color-ink); }
.ui-button.primary:hover { background: color-mix(in srgb, var(--color-ink), var(--color-paper) 12%); }
.icon-button { width: 38px; height: 38px; display: grid; place-items: center; flex: none; padding: 0; border: 1px solid var(--color-rule); background: transparent; border-radius: var(--radius-control); }
.icon-button:hover { background: var(--color-subtle); }
.repository { border: 0; }
.copy-status { min-height: 20px; margin-top: 5px; font-size: 11px; color: var(--color-muted); }
.skip-link { position: fixed; top: -100px; left: 15px; padding: 10px; background: var(--color-paper); z-index: 20; }
.skip-link:focus { top: 10px; }
dialog { width: min(640px, calc(100% - 32px)); max-height: calc(100svh - 40px); padding: 24px; border: 1px solid var(--color-rule); border-radius: var(--radius-card); color: var(--color-ink); background: var(--color-paper); }
dialog::backdrop { background: var(--color-overlay); backdrop-filter: blur(3px); }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dialog-heading h2 { font-size: 22px; letter-spacing: -.6px; }
dialog > p { color: var(--color-muted); font-size: 12px; margin: 12px 0 20px; }
.code-tabs { margin-bottom: 14px; }
dialog pre { overflow: auto; max-height: 45svh; background: var(--color-subtle); border: 1px solid var(--color-rule); border-radius: var(--radius-control); padding: 18px; margin: 0 0 20px; font: 12px/1.65 var(--font-mono); tab-size: 2; }
.dialog-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
#code-status { font-size: 11px; color: var(--color-muted); }
.noscript { padding: 20px; }
@media (min-width: 1700px) { .app { margin: 26px auto; height: calc(100svh - 52px); } }
@media (max-width: 1699px) { .app { margin: 16px; } }
@media (max-width: 1200px) {
  .catalog, .inspector { padding: 22px; }
  .catalog-tools { flex-wrap: wrap; }
  .search-field { flex-basis: 100%; }
  .filters { width: 100%; }
  .theme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .axis-row legend { width: 64px; }
  .swatches { gap: 10px; }
  .preview-scene { padding-inline: 22px; }
}
@media (max-width: 820px) {
  .app { margin: 0; border: 0; border-radius: 0; height: auto; }
  .workspace { grid-template-columns: minmax(0, 1fr); }
  .catalog, .inspector { overflow: visible; }
  .site-header { height: 62px; gap: 26px; padding: 0 22px; }
  .site-header nav { gap: 20px; }
  .inspector { position: relative; top: auto; border-left: 0; border-bottom: 1px solid var(--color-rule); grid-row: 1; padding: 24px; }
  .inspector-heading, .theme-description, .preview-scene, .inspector-controls, .export-row, .copy-status { max-width: 580px; margin-left: auto; margin-right: auto; }
  .preview-scene { min-height: 440px; }
  .catalog { padding: 28px 24px; }
  .theme-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalog-tools { flex-wrap: nowrap; }
  .search-field { flex-basis: auto; }
  .filters { width: auto; }
  .axis-row legend { width: 84px; }
}
@media (max-width: 520px) {
  .site-header { padding: 0 16px; gap: 24px; flex-wrap: wrap; height: auto; min-height: 62px; }
  .wordmark { font-size: 17px; }
  .site-header nav { gap: 18px; height: 44px; order: 2; width: 100%; margin-top: -8px; }
  .repository { margin-left: auto; }
  .inspector { padding: 20px 16px 12px; }
  .preview-scene { padding: 66px 16px 44px; min-height: 420px; }
  .live-panel { font-size: 13px; }
  .scene-toolbar { left: 16px; right: 16px; }
  .inspector h2 { font-size: 26px; }
  .catalog { padding: 24px 16px; }
  .catalog-tools { flex-wrap: wrap; }
  .search-field { flex-basis: 100%; }
  .filters { width: 100%; }
  .theme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .thumbnail { height: 172px; }
  .card-category { display: none; }
  .axis-row { gap: 10px; }
  .axis-row legend { width: 58px; }
  .swatches { gap: 10px; }
  .swatch, .custom-accent { width: 25px; height: 25px; }
  .segments button { padding-inline: 8px; }
  .export-row > a { font-size: 10px; white-space: nowrap; }
  .ui-button { padding-inline: 12px; }
  .catalog-heading p { font-size: 12px; }
  h1 { font-size: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

.font-axis select { margin-left: auto; padding: 5px 8px; border: 1px solid var(--color-rule); border-radius: var(--radius-control); background: var(--color-paper); color: var(--color-ink); font: inherit; }

.auto-accent { background: transparent; color: var(--color-muted); border: 1px solid var(--color-rule); border-radius: 5px; padding: 7px; font-size: 11px; }
.auto-accent[aria-pressed=true] { background: var(--color-selected); color: var(--color-accent); }