:root {
  --bg0: #f4efe7;
  --bg1: #e6dbce;
  --bg2: #c9b39a;
  --panel: #f7f3ecf0;
  --panel-border: #d6c6b1;
  --text: #27211b;
  --muted: #6b5f52;
  --card: #f7f2ea;
  --card-border: #d8c8b4;
  --link: #564633;
  --accent-bronze: #7a6243;
  --accent-graphite: #302922;
  --surface-paper: #fbf7f1;
  --surface-plaster: #f2e9dd;
  --surface-stone: #e8ddcf;
  --shadow-soft: #4e38180b;
  --shadow-deep: #4a351516;
  --font-ui: "IBM Plex Sans", "Avenir Next", sans-serif;
  --font-display: "Avenir Next", "Helvetica Neue", "IBM Plex Sans", sans-serif;
  --serif-display: var(--font-display);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg0: #111017;
  --bg1: #17141c;
  --bg2: #362c3d;
  --panel: #16131bf0;
  --panel-border: #433748;
  --text: #f7f1ee;
  --muted: #c1b4bb;
  --card: #18151d;
  --card-border: #4a3e51;
  --link: #fff8f4;
  --accent-bronze: #f0c0a4;
  --accent-graphite: #f7f1ee;
  --surface-paper: #16131a;
  --surface-plaster: #1d1921;
  --surface-stone: #241e29;
  --shadow-soft: #0000002b;
  --shadow-deep: #00000052;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 16% 0%, #ffffffba 0%, transparent 26%),
    linear-gradient(180deg, #f5f0e8 0%, #eee5d9 100%);
  color: var(--text);
  font-family: "IBM Plex Sans", "Avenir Next", sans-serif;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100%;
  font-family: var(--font-ui);
  font-feature-settings: "liga" 1, "kern" 1;
  text-rendering: optimizeLegibility;
}

html[data-theme="dark"],
:root[data-theme="dark"] body {
  background:
    radial-gradient(circle at 16% 0%, #f0b6a91f 0%, transparent 28%),
    radial-gradient(circle at 84% 12%, #b8e4d51a 0%, transparent 24%),
    radial-gradient(circle at 50% 100%, #d9c1ee14 0%, transparent 28%),
    linear-gradient(180deg, #111017 0%, #0b0a10 100%);
  color: var(--text);
}

html {
  scroll-behavior: smooth;
}

a {
  color: var(--link);
}

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 30;
  padding: 10px 14px;
  border: 1px solid #b49a76;
  border-radius: 999px;
  background: #fff7ed;
  color: #3a2c1e;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: translateY(-180%);
  transition: transform 140ms ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

[hidden] {
  display: none !important;
}

.app {
  width: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
}

.app.viewer-app {
  height: 100%;
  min-height: 100%;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  grid-template-rows: 1fr;
}

.app.lobby-app {
  min-height: 100%;
  background:
    radial-gradient(circle at top right, #ddc39f1b 0%, transparent 24%),
    linear-gradient(180deg, #f4efe7 0%, #ede3d7 100%);
}

.panel {
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(6px);
}

.viewer-app .panel {
  display: grid;
  align-content: start;
  gap: 18px;
  height: 100%;
  padding: 28px 24px 24px;
  overflow: auto;
  border-right: 1px solid var(--panel-border);
  border-bottom: 0;
  background:
    linear-gradient(180deg, #faf6ef 0%, #f2e9dc 100%);
  box-shadow: inset -1px 0 0 #fffaf4;
}

.title {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.01em;
}

.sub {
  margin: 4px 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.viewer-header {
  display: grid;
  gap: 22px;
}

.viewer-object {
  display: grid;
  gap: 8px;
}

.viewer-kicker {
  margin: 0;
  color: #776957;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.viewer-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 3vw, 34px);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--text);
}

.viewer-artist {
  margin: 0;
  font-size: 17px;
  line-height: 1.58;
  color: #655d54;
}

.viewer-medium,
.viewer-dimensions,
.viewer-location {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: #655d54;
}

.viewer-meta {
  display: grid;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid #d7cec2;
}

.viewer-section-label {
  margin: 0;
  color: #776957;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.viewer-stats {
  margin: 0;
  color: #62584c;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.03em;
}

.viewer-source {
  display: grid;
}

.viewer-source .source-card {
  margin: 0;
}

.meta-line {
  margin-top: -4px;
}

.meta-label {
  color: var(--text);
  font-weight: 600;
}

.stage {
  width: 100%;
  padding: 16px 14px 20px;
  display: grid;
  gap: 14px;
  align-content: start;
}

.lobby-panel {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 30px 36px 24px;
  background:
    linear-gradient(180deg, #faf7f2 0%, #f2e9dc 100%);
  box-shadow:
    0 1px 0 #ffffffb8 inset,
    0 12px 28px #6f533010;
}

.lobby-panel-inner {
  max-width: 1720px;
  margin: 0 auto;
}

.lobby-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(260px, 0.9fr);
  gap: 34px;
  align-items: start;
}

.lobby-copy {
  position: relative;
  padding-right: 52px;
  max-width: 860px;
}

.lobby-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
  color: #66533e;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.lobby-brand-name::after {
  content: "";
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, #82684a 0%, #ccb392 100%);
  opacity: 0.72;
}

.lobby-copy::after {
  content: "";
  position: absolute;
  inset: auto auto -28px 0;
  width: 188px;
  height: 1px;
  background: linear-gradient(90deg, #776044 0%, #ccb28f 72%, transparent 100%);
  opacity: 0.7;
}

.lobby-eyebrow,
.section-kicker,
.piece-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 10px;
  font-weight: 700;
}

.lobby-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #66533e;
}

.lobby-eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, #836746 0%, #ccb392 100%);
  opacity: 0.78;
}

.lobby-title {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: clamp(42px, 5vw, 76px);
  line-height: 0.9;
  letter-spacing: -0.05em;
  font-weight: 600;
  color: var(--accent-graphite);
}

.lobby-sub {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: #5b5146;
}

.lobby-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-self: end;
}

.lobby-stat {
  position: relative;
  margin: 0;
  min-height: 108px;
  padding: 18px 18px 16px;
  border: 1px solid #d9caba;
  border-radius: 10px;
  background:
    linear-gradient(180deg, #fcfaf5 0%, #f3ebdf 100%);
  box-shadow:
    inset 0 1px 0 #fffaf6,
    0 8px 20px #5b45220b;
}

.lobby-stat::before {
  content: none;
}

.lobby-stat-kicker {
  margin: 0 0 14px;
  color: #7a6546;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 10px;
  font-weight: 700;
}

.lobby-stat-value {
  margin: 0;
  font-family: var(--font-display);
  font-size: 40px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--accent-graphite);
}

.lobby-stat-label {
  margin: 10px 0 0;
  font-size: 11px;
  color: #726655;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.lobby-viewbar {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: 18px 28px;
  align-items: end;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid #ded1bf;
}

.lobby-view-field {
  display: grid;
  gap: 10px;
}

.lobby-view-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #705d45;
}

.lobby-view-label::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, #7f6646 0%, #ccb392 100%);
  opacity: 0.72;
}

.lobby-view-select-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lobby-view-select-wrap::after {
  content: "▾";
  position: absolute;
  right: 16px;
  color: #5c4a34;
  font-size: 12px;
  pointer-events: none;
}

.lobby-view-select {
  width: 100%;
  min-height: 48px;
  padding: 0 42px 0 16px;
  border: 1px solid #d1c0ac;
  border-radius: 12px;
  background:
    linear-gradient(180deg, #fdf9f2 0%, #f4eadc 100%);
  color: #241d16;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  appearance: none;
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 6px 16px #5a412008;
}

.lobby-view-note {
  max-width: 70ch;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: #665b4e;
}

.lobby-jumps {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.lobby-jump {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid #d4c7b7;
  border-radius: 999px;
  background: #f9f4ec;
  text-decoration: none;
  color: inherit;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

.lobby-jump:hover {
  transform: translateY(-1px);
  border-color: #9a7d57;
  background: #fffaf3;
  box-shadow: 0 10px 16px #6f55300f;
}

.lobby-jump-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #403428;
}

.lobby-jump-count {
  min-width: 24px;
  padding: 3px 7px 2px;
  border-radius: 999px;
  background: #efe4d4;
  color: #665438;
  font-size: 10px;
  font-weight: 700;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.lobby-app .stage {
  position: relative;
  padding: 34px 36px 52px;
}

.lobby-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  gap: 28px;
  align-items: start;
  max-width: 1760px;
  margin: 0 auto;
}

.lobby-app .stage::before {
  content: none;
}

.lobby-section {
  position: relative;
  scroll-margin-top: 132px;
  padding: 20px;
  border: 1px solid #d8cab8;
  border-radius: 18px;
  background: linear-gradient(180deg, #fbf8f2 0%, #f3eadf 100%);
  box-shadow:
    0 14px 28px var(--shadow-soft),
    inset 0 1px 0 #fffaf5;
}

.lobby-section::after {
  content: none;
}

.lobby-section[data-tone="0"] {
  border-top: 2px solid #c8a974;
}

.lobby-section[data-tone="1"] {
  border-top: 2px solid #b7a07f;
}

.lobby-section[data-tone="2"] {
  border-top: 2px solid #8f7353;
}

.lobby-section[data-tone="3"] {
  border-top: 2px solid #b79e88;
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.section-title {
  margin: 9px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1;
  color: var(--accent-graphite);
  letter-spacing: -0.028em;
  text-transform: none;
}

.section-sub {
  margin: 10px 0 0;
  color: #665c50;
  font-size: 13px;
  line-height: 1.62;
  letter-spacing: 0.01em;
  max-width: 46ch;
}

.section-range {
  margin: 10px 0 0;
  color: #7a684e;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.section-kicker {
  color: #7b6548;
}

.section-count {
  margin: 0;
  white-space: nowrap;
  font-size: 10px;
  color: #66563f;
  background: #faf5ed;
  border: 1px solid #d8c9b6;
  border-radius: 10px;
  padding: 8px 11px 7px;
  font-variant-numeric: tabular-nums;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.piece {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
  text-decoration: none;
  color: inherit;
  border: 1px solid #e0d4c4;
  border-radius: 10px;
  background: linear-gradient(180deg, #fcfaf6 0%, #f6eee4 100%);
  padding: 14px 15px 14px;
  box-shadow:
    0 4px 12px #70522a06,
    inset 0 1px 0 #fffaf5;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.piece::before {
  content: none;
}

.piece:hover {
  transform: translateY(-2px);
  border-color: #a3845d;
  background: linear-gradient(180deg, #fdfaf6 0%, #f3e9db 100%);
  box-shadow:
    0 10px 18px var(--shadow-deep),
    inset 0 1px 0 #fffaf6;
}

.piece-copy {
  display: grid;
  gap: 0;
  align-content: start;
}

.piece-kicker {
  color: #7d6748;
  margin-bottom: 10px;
}

.piece-title {
  margin: 0;
  color: #2c241d;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.piece:hover .piece-title,
.piece:focus-visible .piece-title {
  color: #211a12;
}

.piece-meta {
  margin: 10px 0 0;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
}

.piece-note {
  margin: 8px 0 0;
  font-size: 11px;
  color: #60503b;
  line-height: 1.55;
}

.piece-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  align-self: stretch;
}

.piece-arrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  color: #574734;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.piece-arrow::after {
  content: "↗";
  font-size: 12px;
}

.piece:hover .piece-arrow,
.piece:focus-visible .piece-arrow {
  color: #3a2f22;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 8px 12px;
}

.control {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.control label {
  min-width: 88px;
  color: #5f564b;
  font-weight: 600;
}

.control input[type="range"] {
  width: 100%;
  accent-color: #8d7550;
}

.control output {
  min-width: 40px;
  text-align: right;
  color: #706354;
  font-variant-numeric: tabular-nums;
}

.row {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: #706354;
  flex-wrap: wrap;
}

.row label {
  display: flex;
  align-items: center;
  gap: 5px;
  color: #5f564b;
}

.viewer-controls {
  margin-top: 4px;
  border-top: 1px solid #d8d2c7;
  padding-top: 18px;
}

.viewer-controls summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #6f665b;
}

.viewer-controls-panel {
  margin-top: 16px;
  display: grid;
  gap: 16px;
}

.viewer-controls label {
  font-size: 13px;
  color: #5f564b;
}

.viewer-controls-toolbar {
  display: grid;
  gap: 12px;
}

.viewer-toggle-row,
.viewer-action-row {
  display: flex;
  align-items: center;
  gap: 10px 12px;
  flex-wrap: wrap;
}

.viewer-toggle-row label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #5f564b;
}

.viewer-action-row {
  padding-top: 4px;
  border-top: 1px dashed #d9cfc2;
}

.viewer-controls-hint {
  margin: 0;
  padding-top: 4px;
  color: #72685b;
  font-size: 13px;
  line-height: 1.5;
  border-top: 1px dashed #d9cfc2;
}

.btn {
  border: 1px solid #a18f73;
  border-radius: 10px;
  background: #efe2cf;
  color: #2d261f;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 14px;
  cursor: pointer;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
}

.btn:hover {
  background: #efe1cd;
  border-color: #8f7857;
  transform: translateY(-1px);
}

.source-card {
  margin: 0 0 10px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: linear-gradient(180deg, #f4ebdc 0%, #eee2cf 100%);
  overflow: hidden;
}

.source-card summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  padding: 10px 12px;
  color: #4f4333;
  font-size: 13px;
  font-weight: 600;
}

.source-card summary::-webkit-details-marker {
  display: none;
}

.source-card summary::after {
  content: "+";
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
}

.source-card[open] summary::after {
  content: "-";
}

.source-copy,
.source-links,
.source-note {
  margin: 0;
  padding: 0 12px 10px;
  font-size: 13px;
  line-height: 1.6;
  color: #685d50;
}

.source-links a {
  color: var(--link);
}

#stage {
  width: 100%;
  height: 100%;
  min-height: clamp(420px, 72vh, 960px);
  border: 1px solid #d8c8b4;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 22%, #f1e8db 0%, #e7dbcb 58%, #e0d2c0 100%);
  box-shadow:
    0 22px 44px #5f47250f,
    inset 0 1px 0 #fff9f2;
}

.viewer-stage-shell {
  min-width: 0;
  min-height: 0;
  padding: 28px 28px 28px 14px;
  background:
    radial-gradient(circle at 12% 12%, #ffffff96 0%, transparent 26%);
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.viewer-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.loading {
  width: min(100%, 420px);
  min-height: 220px;
  margin: auto;
  padding: 28px 28px 26px;
  display: grid;
  gap: 12px;
  place-items: start;
  align-content: center;
  color: var(--muted);
  font-size: 15px;
  text-align: left;
  border: 1px solid #d8c8b4;
  border-radius: 24px;
  background:
    linear-gradient(180deg, #faf4eb 0%, #f1e6d8 100%);
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 18px 34px #5a45220f;
}

.loading::before {
  content: "";
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 35% 35%, #fff9f0 0%, #f4dfbe 45%, #d8b988 100%);
  box-shadow: 0 10px 20px #7a624311;
  animation: viewerPulse 2.2s ease-in-out infinite;
}

.loading-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #7a6a56;
}

.loading-title {
  color: #3b3127;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.6vw, 30px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.loading-message {
  color: #685d50;
  line-height: 1.65;
}

.loading[data-state="error"] {
  background:
    linear-gradient(180deg, #faf0eb 0%, #f4e6dc 100%);
}

.loading[data-state="error"]::before {
  background:
    radial-gradient(circle at 35% 35%, #fff8f5 0%, #efc8b7 42%, #cc937e 100%);
}

.system-state {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 32px 18px;
  background:
    radial-gradient(circle at top, #ffffff86 0%, transparent 36%),
    linear-gradient(180deg, #f8f3ea 0%, #ece1cf 100%);
}

.system-state-card {
  width: min(100%, 720px);
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid #d8c8b4;
  border-radius: 16px;
  background:
    linear-gradient(180deg, #faf6ef 0%, #f2e8da 100%);
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 18px 38px #5a452212;
}

.system-state-kicker {
  margin: 0;
  color: #7b6a55;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.system-state-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 46px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-weight: 600;
  color: var(--accent-graphite);
}

.system-state-copy {
  margin: 0;
  max-width: 52ch;
  color: #62574b;
  font-size: 16px;
  line-height: 1.7;
}

.piece:focus-visible,
.lobby-jump:focus-visible,
.lobby-view-select:focus-visible {
  outline: none;
  border-color: #8d714b;
  box-shadow:
    0 0 0 2px #f7f1e8,
    0 0 0 4px #8d714b33;
}

.btn:focus-visible,
.browse-reset:focus-visible,
.explore-button:focus-visible,
.viewer-controls summary:focus-visible,
.source-card summary:focus-visible,
.sculpture-stage--link:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px #f7f1e8,
    0 0 0 4px #8d714b33;
}

@supports (padding: max(0px)) {
  .panel {
    padding-top: max(12px, env(safe-area-inset-top));
    padding-bottom: max(10px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 760px) {
  .control label {
    min-width: 78px;
  }

  .skip-link {
    left: 10px;
    right: 10px;
    width: auto;
    text-align: center;
  }
}

@media (max-width: 1280px) {
  .lobby-hero {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .lobby-copy {
    max-width: 920px;
    padding-right: 0;
  }

  .lobby-stats {
    max-width: 560px;
  }

  .lobby-viewbar {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 1040px) {
  .lobby-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .lobby-app .stage {
    padding: 16px 12px calc(20px + env(safe-area-inset-bottom));
  }

  .lobby-panel {
    padding: 18px 12px 16px;
  }

  .lobby-hero {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .lobby-copy {
    padding-right: 0;
  }

  .lobby-brand {
    gap: 10px;
    margin-bottom: 10px;
    letter-spacing: 0.16em;
  }

  .lobby-brand::after {
    width: 18px;
  }

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

  .lobby-viewbar {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 24px;
    padding-top: 18px;
  }

  .lobby-view-field {
    width: 100%;
  }

  .lobby-jumps {
    gap: 8px;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 2px;
  }

  .lobby-jump {
    flex: 0 0 auto;
  }

  .lobby-section {
    padding: 14px;
    border-radius: 18px;
  }

  .section-header {
    grid-template-columns: 1fr;
  }

  .title {
    font-size: 16px;
    line-height: 1.25;
  }

  .lobby-title {
    font-size: 46px;
    line-height: 0.98;
  }

  .sub {
    font-size: 12px;
    margin-bottom: 8px;
  }

  .lobby-grid,
  .list {
    grid-template-columns: 1fr;
  }

  .viewer-app {
    display: flex;
    flex-direction: column;
    height: 100svh;
    min-height: 100svh;
  }

  .viewer-app #stage {
    order: 1;
    width: 100%;
    height: auto;
    flex: 1 1 auto;
    min-height: 46svh;
  }

  .viewer-app .panel {
    order: 2;
    position: relative;
    border-top: 1px solid var(--panel-border);
    border-bottom: 0;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -6px 18px #0000001f;
    max-height: min(48svh, 430px);
    overflow: auto;
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
  }

  .viewer-app .grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .viewer-app .control {
    font-size: 13px;
  }

  .viewer-app .control label {
    min-width: 96px;
    font-weight: 600;
  }

  .viewer-app .control input[type="range"] {
    min-height: 32px;
  }

  .viewer-app .row {
    gap: 10px;
    font-size: 12px;
  }

  .viewer-app .row label input[type="checkbox"] {
    width: 18px;
    height: 18px;
  }

  .viewer-app .btn {
    padding: 8px 12px;
    font-size: 13px;
  }

  .source-card summary,
  .source-copy,
  .source-links,
  .source-note {
    font-size: 12px;
  }
}

@media (max-width: 820px) and (orientation: landscape) {
  .viewer-app .panel {
    max-height: min(46svh, 350px);
  }

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

.app.viewer-app.viewer-app--hero {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 1fr;
}

.viewer-app--hero .viewer-header,
.viewer-app--hero .viewer-meta,
.viewer-app--hero .viewer-source,
.viewer-app--hero .viewer-controls {
  display: none;
}

.viewer-app--hero .panel {
  display: none;
}

.viewer-app--hero #stage {
  height: 100%;
  min-height: 100%;
}

.viewer-app--hero .loading {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: end;
  gap: 6px;
  padding: 18px;
  font-size: 13px;
  letter-spacing: 0.03em;
}

.viewer-app--hero .loading[data-state="loading"] {
  width: 100%;
  min-height: 100%;
  padding: 18px;
  border: 0;
  border-radius: 0;
  background: linear-gradient(180deg, #ffffff06 0%, #00000000 40%, #00000014 100%);
  box-shadow: none;
}

.viewer-app--hero .loading[data-state="loading"]::before {
  display: none;
}

.viewer-app--hero .loading[data-state="loading"] .loading-eyebrow {
  font-size: 9px;
  letter-spacing: 0.2em;
}

.viewer-app--hero .loading[data-state="loading"] .loading-title {
  font-size: 14px;
  line-height: 1.15;
}

.viewer-app--hero .loading[data-state="loading"] .loading-message {
  font-size: 11px;
  line-height: 1.45;
  max-width: 22ch;
}

.app.lobby-app {
  min-height: 100%;
  background:
    radial-gradient(circle at top, #ffffff7a 0%, transparent 38%),
    linear-gradient(180deg, #f8f3ea 0%, #f4eee3 24%, #ebe0cf 100%);
}

.museum-header {
  max-width: 1100px;
  margin: 48px auto 10px auto;
  padding: 0 40px;
}

.museum-header--simple {
  margin: 32px auto 12px;
}

.page-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  line-height: 1;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--accent-graphite);
}

.page-title--progressive {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.18em;
  text-transform: uppercase;
}

.page-title-form {
  color: rgba(48, 41, 34, 0.42);
}

.page-title-gallery {
  color: rgba(48, 41, 34, 0.82);
  font-weight: 600;
}

.page-heading {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6.2vw, 5.2rem);
  line-height: 0.88;
  letter-spacing: -0.05em;
  font-weight: 600;
  color: rgba(48, 41, 34, 0.96);
}

.page-subtitle {
  max-width: 760px;
  margin: 0;
  font-size: 17px;
  line-height: 1.72;
  color: #62574b;
}

.page-meta {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7a6d5c;
}

.lobby-app .stage {
  gap: clamp(56px, 8vw, 88px);
  padding: clamp(34px, 5vw, 56px) clamp(18px, 4vw, 44px) calc(52px + env(safe-area-inset-bottom));
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #bca98d66;
}

.section-kicker {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #7c6c57;
}

.lobby-app .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3vw, 2.75rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-weight: 600;
  color: var(--text);
  text-transform: none;
}

.section-sub {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: #65594b;
  max-width: 48rem;
}

.featured-work {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(44px, 6vw, 72px);
  align-items: center;
  padding: 0 40px;
}

.featured-copy {
  display: grid;
  gap: 12px;
  align-content: start;
  max-width: 460px;
}

.featured-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #8a8a8a;
  margin: 0 0 10px;
}

.featured-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(40px, 4.2vw, 52px);
  line-height: 0.98;
  margin-bottom: 8px;
  letter-spacing: -0.04em;
  font-weight: 600;
}

.featured-artist {
  font-size: 15px;
  line-height: 1.6;
  color: #63584c;
  margin: 0 0 18px;
}

.explore-button {
  width: fit-content;
  border: 1px solid #bfa98a;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: #f7f0e6;
  cursor: pointer;
  color: #433629;
  text-decoration: none;
  font-weight: 600;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.explore-button:hover {
  background: #efe3d2;
  border-color: #a88c67;
  transform: translateY(-1px);
}

.sculpture-stage {
  position: relative;
  min-height: clamp(300px, 48vh, 560px);
  overflow: hidden;
  background: radial-gradient(
    ellipse at center,
    #e7dfd3 0%,
    #d8cfbf 100%
  );
  border-radius: 6px;
  border: 1px solid #d5c4af;
  box-shadow:
    0 18px 34px #5a452611,
    inset 0 1px 0 #fffaf1;
}

.sculpture-stage--link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition:
    box-shadow 160ms ease,
    transform 160ms ease;
}

.sculpture-stage--link:hover {
  transform: translateY(-1px);
  box-shadow:
    0 24px 40px #5a452618,
    inset 0 1px 0 #fffaf1;
}

.sculpture-stage::before {
  content: none;
}

.sculpture-stage::after {
  content: "";
  position: absolute;
  inset: 8% 14% 18%;
  background: radial-gradient(circle, #ffffff3d 0%, transparent 72%);
  pointer-events: none;
}

.hero-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  pointer-events: none;
  background: transparent;
}

.new-additions-section,
.browse-section,
.rooms-section {
  display: grid;
  gap: 18px;
  width: min(100%, 1360px);
  margin: 0 auto;
}

.new-additions-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 28vw);
  gap: 20px;
  align-items: start;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  padding-bottom: 6px;
}

.new-addition-item {
  min-width: 0;
  scroll-snap-align: start;
}

.new-addition-card {
  display: grid;
  gap: 14px;
  height: 100%;
  padding: 16px 16px 18px;
  border: 1px solid #d7c8b4;
  border-radius: 14px;
  background: linear-gradient(180deg, #faf6ef 0%, #f3ebdf 100%);
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 8px 20px #5a45220a;
  text-decoration: none;
  color: inherit;
}

.new-addition-card:hover,
.new-addition-card:focus-visible {
  color: var(--link);
  border-color: #b7a489;
  outline: none;
}

.new-addition-stage {
  position: relative;
  display: block;
  min-height: 340px;
  border-radius: 10px;
  overflow: hidden;
  background:
    linear-gradient(180deg, #f8f1e3 0%, #ece1cf 100%);
  box-shadow:
    inset 0 1px 0 #fff9f1,
    0 10px 24px #5a45220f;
}

.new-addition-frame {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 340px;
  border: 0;
  background: transparent;
}

.new-addition-meta {
  display: grid;
  gap: 8px;
  align-content: start;
}

.new-addition-gallery {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #766856;
}

.new-addition-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.8vw, 1.55rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 600;
}

.new-addition-creator,
.new-addition-date {
  margin: 0;
  color: #5d5143;
  font-size: 14px;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .new-additions-grid {
    grid-auto-columns: minmax(220px, 78vw);
  }

  .new-addition-stage,
  .new-addition-frame {
    min-height: 300px;
  }
}

.rooms-section {
  gap: 30px;
}

.browse-status {
  margin: 2px 0 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #7b6b57;
}

.browse-reset {
  padding: 8px 14px;
  border: 1px solid #b7a489;
  border-radius: 10px;
  background: transparent;
  color: #5b4a35;
  font-size: 12px;
  letter-spacing: 0.14em;
  font-weight: 600;
  text-transform: uppercase;
  cursor: pointer;
}

.browse-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 28px;
  align-items: start;
}

.browse-group {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px 18px 16px;
  border: 1px solid #d7c8b4;
  border-radius: 14px;
  background: linear-gradient(180deg, #faf6ef 0%, #f3ebdf 100%);
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 8px 20px #5a45220a;
}

.browse-group-title {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #746553;
}

.browse-chip-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 4px 12px;
  align-content: start;
}

.browse-chip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  width: 100%;
  border: 0;
  border-radius: 8px;
  padding: 8px 10px;
  background: none;
  color: #433628;
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.browse-chip:hover,
.browse-chip:focus-visible {
  color: var(--link);
  background: #f8f2e9;
  outline: none;
}

.browse-chip.is-active {
  color: var(--link);
  background: #efe4d2;
  box-shadow: inset 0 0 0 1px #cbb28d;
}

.browse-count {
  align-self: start;
  min-width: 2ch;
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.browse-chip span:first-child {
  min-width: 0;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

@media (min-width: 1500px) {
  .browse-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .browse-group {
    padding: 16px 16px 14px;
  }
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px 28px;
  align-items: start;
}

.chronology-group {
  display: grid;
  gap: 20px;
}

.chronology-head {
  display: grid;
  gap: 8px;
}

.chronology-kicker {
  margin: 0;
  color: #7b6548;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 10px;
  font-weight: 700;
}

.chronology-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-weight: 600;
  color: var(--accent-graphite);
}

.chronology-meta {
  margin: 0;
  color: #746452;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.chronology-group .gallery-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 26px 28px;
}

.gallery-card {
  display: grid;
  gap: 28px;
  padding: 26px 22px 24px;
  border: 1px solid #c3b091;
  border-radius: 16px;
  background: linear-gradient(180deg, #f2e7d8 0%, #ebdecb 100%);
  scroll-margin-top: 24px;
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 16px 30px #5a452209;
}

.gallery-card:target {
  border-color: #9e845e;
  box-shadow:
    inset 0 1px 0 #fffaf4,
    0 0 0 3px #f7f0e5,
    0 20px 34px #5a452212;
}

.gallery-head {
  display: grid;
  gap: 10px;
  padding-bottom: 20px;
  border-bottom: 1px solid #c4b29380;
}

.gallery-region {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #766856;
}

.gallery-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-weight: 600;
}

.gallery-description {
  margin: 0;
  color: #5d5143;
  font-size: 15px;
  line-height: 1.7;
}

.gallery-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  color: #726452;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.work-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 24px;
}

.work-item {
  scroll-margin-top: 24px;
}

.piece {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-auto-flow: row;
  gap: 10px;
  align-items: start;
  justify-items: start;
  padding: 18px 16px 16px;
  text-decoration: none;
  color: inherit;
  border: 1px solid #c6b79f;
  border-radius: 18px;
  background: #f7f1e966;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease,
    box-shadow 160ms ease;
}

.piece:hover,
.piece:focus-visible {
  transform: translateY(-1px);
  border-color: #a58d6b;
  background: #faf5ee;
  box-shadow: 0 10px 22px #372a180d;
  outline: none;
}

.work-item:target .piece {
  border-color: #9e845e;
  background: #fbf5ec;
  box-shadow:
    0 0 0 3px #f7f0e5,
    0 14px 28px #372a1814;
}

.piece-title {
  grid-column: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.16;
  letter-spacing: -0.028em;
  font-weight: 600;
  color: var(--text);
}

.piece-creator {
  grid-column: 1;
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: #5f5244;
}

.piece-date {
  grid-column: 1;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7b6b57;
}

.piece-link {
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 6px;
  margin-top: 2px;
  color: var(--link);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

:root[data-theme="dark"] .skip-link {
  border-color: #617a99;
  background: #121a26;
  color: #f4f7fb;
}

:root[data-theme="dark"] .viewer-app .panel,
:root[data-theme="dark"] .museum-header--simple,
:root[data-theme="dark"] .source-card,
:root[data-theme="dark"] .loading,
:root[data-theme="dark"] .piece,
:root[data-theme="dark"] .new-addition-card,
:root[data-theme="dark"] .browse-group,
:root[data-theme="dark"] .gallery-card {
  border-color: #33425a;
  background:
    linear-gradient(180deg, #151c28 0%, #0f141d 100%);
  box-shadow:
    inset 0 1px 0 #ffffff08,
    0 18px 34px #00000033;
}

:root[data-theme="dark"] .viewer-app .panel {
  background:
    linear-gradient(180deg, #18141b 0%, #120f15 100%);
  box-shadow: inset -1px 0 0 #ffffff0d;
}

:root[data-theme="dark"] .viewer-stage-shell {
  background:
    radial-gradient(circle at 12% 12%, #f0bdbe14 0%, transparent 26%),
    radial-gradient(circle at 80% 16%, #c2e4d518 0%, transparent 24%);
}

:root[data-theme="dark"] .viewer-meta,
:root[data-theme="dark"] .viewer-controls,
:root[data-theme="dark"] .viewer-action-row,
:root[data-theme="dark"] .viewer-controls-hint,
:root[data-theme="dark"] .section-head,
:root[data-theme="dark"] .gallery-head {
  border-color: #40506a;
}

:root[data-theme="dark"] .viewer-kicker,
:root[data-theme="dark"] .viewer-section-label,
:root[data-theme="dark"] .viewer-stats,
:root[data-theme="dark"] .section-kicker,
:root[data-theme="dark"] .page-meta,
:root[data-theme="dark"] .browse-status,
:root[data-theme="dark"] .gallery-region,
:root[data-theme="dark"] .chronology-kicker,
:root[data-theme="dark"] .chronology-meta,
:root[data-theme="dark"] .piece-date,
:root[data-theme="dark"] .new-addition-gallery {
  color: #d1bcc7;
}

:root[data-theme="dark"] .viewer-artist,
:root[data-theme="dark"] .viewer-medium,
:root[data-theme="dark"] .viewer-dimensions,
:root[data-theme="dark"] .viewer-location,
:root[data-theme="dark"] .section-sub,
:root[data-theme="dark"] .page-subtitle,
:root[data-theme="dark"] .featured-artist,
:root[data-theme="dark"] .new-addition-creator,
:root[data-theme="dark"] .new-addition-date,
:root[data-theme="dark"] .gallery-description,
:root[data-theme="dark"] .piece-creator,
:root[data-theme="dark"] .viewer-controls-hint,
:root[data-theme="dark"] .source-copy,
:root[data-theme="dark"] .source-links,
:root[data-theme="dark"] .source-note {
  color: #bcaeb7;
}

:root[data-theme="dark"] .viewer-title,
:root[data-theme="dark"] .page-heading,
:root[data-theme="dark"] .featured-title,
:root[data-theme="dark"] .section-title,
:root[data-theme="dark"] .gallery-title,
:root[data-theme="dark"] .chronology-title,
:root[data-theme="dark"] .piece-title,
:root[data-theme="dark"] .new-addition-title,
:root[data-theme="dark"] .loading-title {
  color: #fbf4ef;
}

:root[data-theme="dark"] .control label,
:root[data-theme="dark"] .row label,
:root[data-theme="dark"] .viewer-controls label,
:root[data-theme="dark"] .viewer-toggle-row label,
:root[data-theme="dark"] .control output,
:root[data-theme="dark"] .viewer-controls summary,
:root[data-theme="dark"] .meta-label,
:root[data-theme="dark"] .browse-group-title,
:root[data-theme="dark"] .browse-chip {
  color: #f0e4eb;
}

:root[data-theme="dark"] .page-title-form {
  color: rgba(247, 241, 238, 0.38);
}

:root[data-theme="dark"] .page-title-gallery {
  color: rgba(247, 241, 238, 0.9);
}

:root[data-theme="dark"] .btn,
:root[data-theme="dark"] .explore-button,
:root[data-theme="dark"] .browse-reset {
  border-color: #745c70;
  background: #241c29;
  color: #fbf4ef;
}

:root[data-theme="dark"] .btn:hover,
:root[data-theme="dark"] .explore-button:hover {
  background: #322638;
  border-color: #efc0aa;
}

:root[data-theme="dark"] .source-card summary,
:root[data-theme="dark"] .browse-chip.is-active,
:root[data-theme="dark"] .browse-chip:hover,
:root[data-theme="dark"] .browse-chip:focus-visible {
  background: #2a2230;
}

:root[data-theme="dark"] .source-card summary::after,
:root[data-theme="dark"] .browse-count {
  color: #f0c0a4;
}

:root[data-theme="dark"] .loading[data-state="error"] {
  background:
    linear-gradient(180deg, #261d29 0%, #18131b 100%);
}

:root[data-theme="dark"] .loading::before {
  background:
    radial-gradient(circle at 35% 35%, #fff6f1 0%, #e6bfc8 42%, #685269 100%);
  box-shadow: 0 10px 20px #00000044;
}

:root[data-theme="dark"] .app.lobby-app {
  background:
    radial-gradient(circle at 8% 0%, #efb7aa17 0%, transparent 26%),
    radial-gradient(circle at 88% 14%, #bfe3d617 0%, transparent 24%),
    radial-gradient(circle at 64% 80%, #dcc2ee12 0%, transparent 28%),
    linear-gradient(180deg, #121118 0%, #0b0a10 100%);
}

:root[data-theme="dark"] .museum-header {
  color: var(--text);
}

:root[data-theme="dark"] .sculpture-stage,
:root[data-theme="dark"] .new-addition-stage,
:root[data-theme="dark"] #stage {
  border-color: #4b3d4e;
  background: radial-gradient(ellipse at center, #251f27 0%, #141118 100%);
  box-shadow:
    0 22px 44px #00000044,
    inset 0 1px 0 #ffffff08;
}

:root[data-theme="dark"] .viewer-app--hero #stage,
:root[data-theme="dark"] .viewer-app--hero .loading[data-state="loading"] {
  background: #07060c;
}

:root[data-theme="dark"] .viewer-app--hero .loading[data-state="error"] {
  width: 100%;
  min-height: 100%;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: linear-gradient(180deg, #261d29 0%, #18131b 100%);
  box-shadow: none;
}

:root[data-theme="dark"] .sculpture-stage::after {
  background: radial-gradient(circle, #f3d2c31c 0%, transparent 72%);
}

:root[data-theme="dark"] .lobby-app .stage,
:root[data-theme="dark"] .piece:hover,
:root[data-theme="dark"] .new-addition-card:hover,
:root[data-theme="dark"] .new-addition-card:focus-visible,
:root[data-theme="dark"] .sculpture-stage--link:hover {
  box-shadow:
    inset 0 1px 0 #ffffff0d,
    0 16px 28px #00000040;
}

@supports (padding: max(0px)) {
  .museum-header {
    padding-top: max(0px, env(safe-area-inset-top));
  }
}

@media (max-width: 1200px) {
  .browse-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .featured-work {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sculpture-stage {
    order: -1;
    min-height: clamp(280px, 40svh, 420px);
  }
}

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

  .museum-header,
  .featured-work {
    padding: 0 18px;
  }

  .museum-header {
    margin-top: 24px;
  }

  .page-title {
    font-size: 24px;
  }

  .page-title--progressive {
    gap: 0.12em;
  }

  .page-heading {
    font-size: 46px;
  }

  .page-subtitle {
    font-size: 15px;
    line-height: 1.65;
  }

  .page-meta {
    font-size: 11px;
    letter-spacing: 0.12em;
  }

  .sculpture-stage {
    min-height: clamp(240px, 34svh, 320px);
  }

  .gallery-card {
    padding: 22px 18px 20px;
  }

  .browse-chip-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .app.viewer-app {
    display: flex;
    flex-direction: column;
    height: 100svh;
    min-height: 100svh;
  }

  .app.viewer-app.viewer-app--hero {
    display: grid;
    height: 100%;
    min-height: 100%;
  }

  .viewer-app .viewer-stage-shell {
    order: 1;
    padding: 0;
    width: 100%;
    min-height: 0;
  }

  .viewer-app--hero .panel {
    display: none;
  }

  .viewer-app--hero #stage {
    order: initial;
    min-height: 100%;
    height: 100%;
  }

  .viewer-app #stage {
    width: 100%;
    height: auto;
    min-height: 46svh;
    border-radius: 0;
    border: 0;
    box-shadow: none;
  }

  .viewer-app--hero #stage {
    min-height: 100%;
    height: 100%;
  }

  .viewer-app .panel {
    order: 2;
    position: relative;
    border-right: 0;
    border-top: 1px solid var(--panel-border);
    border-radius: 20px 20px 0 0;
    box-shadow: 0 -8px 24px #0000001a;
    max-height: min(48svh, 460px);
    padding: 16px 14px calc(14px + env(safe-area-inset-bottom));
  }

  .viewer-title {
    font-size: clamp(34px, 7vw, 44px);
  }

  .viewer-medium,
  .viewer-dimensions,
  .viewer-location,
  .viewer-artist {
    font-size: 15px;
    line-height: 1.58;
  }

  .viewer-controls-toolbar {
    gap: 10px;
  }

  .viewer-toggle-row,
  .viewer-action-row {
    align-items: stretch;
  }

  .loading {
    width: calc(100% - 28px);
    min-height: 190px;
    padding: 24px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .piece,
  .lobby-jump,
  .explore-button,
  .sculpture-stage--link,
  .browse-chip,
  .browse-reset,
  .btn {
    transition: none;
  }

  .loading::before {
    animation: none;
  }
}

@keyframes viewerPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.92;
  }

  50% {
    transform: scale(1.06);
    opacity: 1;
  }
}