/* Theme explorations — preview-only. Does not affect production site chrome. */

/* —— Shell (gallery page itself) —— */
:root {
  --g-ink: #1c2330;
  --g-ink2: #3d4656;
  --g-muted: #5d6676;
  --g-paper: #fbf8f2;
  --g-card: #fffcf7;
  --g-line: #e3dccd;
  --g-navy: #14263f;
  --g-navy2: #1e3a5f;
  --g-gold: #c9962b;
  --g-focus: #c9962b;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.gallery {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(820px 380px at 110% -8%, rgba(201,150,43,.18), transparent 58%),
    var(--g-paper);
  color: var(--g-ink);
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  font-size: 18px;
  line-height: 1.55;
}

a { color: var(--g-navy2); text-underline-offset: 3px; }
a:focus-visible {
  outline: 3px solid var(--g-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute; left: -999px; top: 8px;
  background: #fff; color: var(--g-navy);
  padding: 10px 14px; z-index: 10; border-radius: 8px;
}
.skip:focus { left: 12px; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.bar {
  position: sticky; top: 0; z-index: 8;
  background: rgba(251,248,242,.92);
  border-bottom: 1px solid var(--g-line);
  backdrop-filter: blur(8px);
}
.bar .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 64px;
}
.brand {
  color: var(--g-navy); text-decoration: none; font-weight: 700; letter-spacing: -.01em;
}
.bar nav { display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: flex-end; }
.bar nav a {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  text-decoration: none; color: var(--g-navy2);
  border-bottom: 2px solid transparent; padding: 2px 0;
}
.bar nav a:hover, .bar nav a[aria-current="page"] { color: var(--g-navy); }
.bar nav a[aria-current="page"] { border-bottom-color: var(--g-gold); }

.kicker {
  margin: 0 0 10px;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--g-gold);
}

main.gallery-main { flex: 1; padding: 32px 0 40px; }

.intro {
  background: var(--g-card);
  border: 1px solid var(--g-line);
  border-top: 4px solid var(--g-gold);
  border-radius: 16px;
  padding: 22px 26px 18px;
  margin-bottom: 28px;
  box-shadow: 0 1px 0 rgba(20,38,63,.04);
}
.intro h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4.5vw, 40px);
  font-weight: normal;
  letter-spacing: -.02em;
  line-height: 1.12;
  color: var(--g-navy);
}
.intro p { margin: 0 0 10px; color: var(--g-ink2); font-size: 17px; }
.intro p:last-child { margin-bottom: 0; }
.intro .note {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 14px;
  color: var(--g-muted);
  background: rgba(201,150,43,.1);
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 12px;
}

/* —— Theme cards —— */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
  list-style: none;
  padding: 0;
  margin-left: 0;
  margin-right: 0;
}

.theme-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  width: 100%;
  padding: 14px 16px 12px;
  background: var(--g-card);
  border: 1px solid var(--g-line);
  border-radius: 12px;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: border-color .15s, box-shadow .15s, transform .12s;
}
.theme-card:hover {
  border-color: #c9b896;
  box-shadow: 0 4px 14px rgba(20,38,63,.06);
}
.theme-card:focus-visible {
  outline: 3px solid var(--g-focus);
  outline-offset: 2px;
}
.theme-card[aria-pressed="true"] {
  border-color: var(--g-navy);
  box-shadow: 0 0 0 2px var(--g-navy);
}
.theme-card .name {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--g-navy);
  letter-spacing: -.01em;
}
.theme-card .badge {
  display: inline-block;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--g-muted);
  background: #f0ebe0;
  padding: 2px 7px;
  border-radius: 999px;
  margin-left: 6px;
  vertical-align: middle;
}
.theme-card .badge.earlier { background: #e8e4da; }
.theme-card .badge.hybrid { background: #e4ecf5; color: var(--g-navy2); }
.theme-card .note-line {
  font-size: 14px;
  color: var(--g-ink2);
  line-height: 1.4;
  margin: 0;
}
.theme-card .swatches {
  display: flex;
  gap: 5px;
  margin-top: 4px;
}
.theme-card .swatch {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(0,0,0,.12);
  flex-shrink: 0;
}
.theme-card .vars {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 10px;
  color: var(--g-muted);
  line-height: 1.45;
  margin: 2px 0 0;
  word-break: break-all;
}

.section-label {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--g-gold);
  margin: 0 0 12px;
}

/* —— Live preview frame —— */
.preview-panel {
  background: var(--g-card);
  border: 1px solid var(--g-line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 28px rgba(20,38,63,.07);
}
.preview-chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: #f3efe6;
  border-bottom: 1px solid var(--g-line);
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 13px;
}
.preview-chrome .label {
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--g-navy);
  font-size: 11px;
}
.preview-chrome .active-name {
  color: var(--g-ink2);
  font-weight: 600;
}
.preview-frame {
  min-height: 520px;
  max-height: 70vh;
  overflow: auto;
  /* Theme tokens applied on .preview-root */
}

/* —— Shared preview tokens (defaults = ink & parchment / current site) —— */
.preview-root {
  --ink: #1c2330;
  --ink2: #3d4656;
  --muted: #5d6676;
  --paper: #fbf8f2;
  --card: #fffcf7;
  --line: #e3dccd;
  --accent: #c9962b;
  --accent2: #f4e3b5;
  --navy: #14263f;
  --navy2: #1e3a5f;
  --font-body: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --font-ui: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --radius: 16px;
  --border-top: 4px solid var(--accent);
  --bg-extra: radial-gradient(820px 380px at 110% -8%, rgba(201,150,43,.22), transparent 58%);
  --scan: none;
  --hud: 0;
  --grid-show: 0;
  --ma: 0;
  --swiss: 0;
  --tufte: 0;

  background: var(--bg-extra), var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  position: relative;
  min-height: 520px;
}

.preview-root a { color: var(--navy2); text-underline-offset: 3px; }

.pv-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 20px;
  min-height: 52px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 3;
}
.pv-brand {
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  font-family: var(--font-body);
}
.pv-nav {
  display: flex;
  gap: 14px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.pv-nav a { color: var(--navy2); text-decoration: none; }
.pv-nav a:hover { color: var(--navy); }

.pv-body {
  padding: 22px 20px 28px;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.pv-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: var(--border-top);
  border-radius: var(--radius);
  padding: 20px 22px 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--navy) 4%, transparent);
}
.pv-card h2 {
  margin: 0 0 6px;
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: normal;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--navy);
  font-family: var(--font-body);
}
.pv-card .pv-kicker {
  margin: 0 0 8px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}
.pv-card p { margin: 0 0 12px; color: var(--ink2); font-size: 15px; }
.pv-card p:last-child { margin-bottom: 0; }

.pv-map {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}
.pv-map .map-label {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
}
.pv-map svg { display: block; width: 100%; height: auto; }

.pv-story {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  align-items: start;
}
.pv-story .photo-block {
  width: 88px; height: 88px;
  border-radius: calc(var(--radius) * .5);
  background: linear-gradient(145deg, var(--accent2), var(--line));
  border: 1px solid var(--line);
}
.pv-story h3 {
  margin: 0 0 4px;
  font-size: 17px;
  color: var(--navy);
  font-weight: normal;
}
.pv-story p { margin: 0; font-size: 14px; color: var(--ink2); }

.pv-margin-note {
  display: none;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.pv-spark {
  display: none;
  margin-top: 10px;
}
.pv-spark svg { display: block; }

.pv-ascii {
  display: none;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 10px;
  color: var(--accent);
  letter-spacing: .05em;
  opacity: .7;
  margin: 0 0 6px;
  user-select: none;
}

.pv-hud-hint {
  display: none;
  position: absolute;
  bottom: 12px;
  right: 14px;
  z-index: 4;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--accent);
  background: color-mix(in srgb, var(--paper) 85%, #000);
  border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
  padding: 6px 10px;
  border-radius: 4px;
  pointer-events: none;
}

.pv-enso, .pv-brush {
  display: none;
}

.pv-vert-accent {
  display: none;
}

.pv-swiss-lockup {
  display: none;
}

.fui-nodes {
  display: none;
}

/* ========== THEME: Innovative FUI ========== */
.preview-root[data-theme="fui"] {
  --ink: #c8e6f0;
  --ink2: #8eb8c8;
  --muted: #5a8494;
  --paper: #061018;
  --card: rgba(8, 28, 40, .88);
  --line: #1a4a5c;
  --accent: #3dffc8;
  --accent2: #0a3040;
  --navy: #e8fbff;
  --navy2: #7ad4f0;
  --font-body: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-ui: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 2px;
  --border-top: 1px solid var(--accent);
  --bg-extra:
    linear-gradient(180deg, transparent 50%, rgba(61,255,200,.03) 50%),
    radial-gradient(600px 300px at 20% 0%, rgba(61,255,200,.12), transparent 55%),
    radial-gradient(500px 280px at 90% 80%, rgba(40,140,255,.1), transparent 50%);
  background-size: 100% 3px, auto, auto;
  --hud: 1;
}

.preview-root[data-theme="fui"]::before {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.45'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.preview-root[data-theme="fui"] .pv-bar {
  background: rgba(4, 16, 24, .92);
  border-bottom-color: #1a4a5c;
  box-shadow: 0 0 20px rgba(61,255,200,.08);
}
.preview-root[data-theme="fui"] .pv-card,
.preview-root[data-theme="fui"] .pv-map,
.preview-root[data-theme="fui"] .pv-story {
  box-shadow:
    inset 0 0 0 1px rgba(61,255,200,.15),
    0 0 24px rgba(61,255,200,.06);
  backdrop-filter: blur(4px);
}
.preview-root[data-theme="fui"] .pv-card h2 {
  font-family: var(--font-ui);
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.preview-root[data-theme="fui"] .pv-ascii { display: block; }
.preview-root[data-theme="fui"] .pv-hud-hint { display: block; }
.preview-root[data-theme="fui"] .fui-nodes { display: block; }
.preview-root[data-theme="fui"] .pv-story .photo-block {
  background:
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(61,255,200,.08) 2px, rgba(61,255,200,.08) 3px),
    linear-gradient(145deg, #0a3040, #143848);
  border-color: var(--accent);
  border-radius: 2px;
}
.preview-root[data-theme="fui"] .pv-map {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}

/* FUI isometric nodes */
.fui-nodes {
  position: relative;
  margin-top: 8px;
}
.fui-node {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.25;
  cursor: pointer;
  transition: stroke .15s, filter .15s, opacity .15s;
  opacity: .55;
}
.fui-node:hover,
.fui-node:focus {
  opacity: 1;
  filter: drop-shadow(0 0 4px var(--accent));
  outline: none;
}
.fui-node.is-focused {
  opacity: 1;
  stroke-width: 2;
  filter: drop-shadow(0 0 6px var(--accent));
}
.fui-node-label {
  fill: var(--accent);
  font-family: ui-monospace, Menlo, monospace;
  font-size: 9px;
  letter-spacing: .1em;
  pointer-events: none;
  opacity: .85;
}

/* ========== THEME: Tufte ========== */
.preview-root[data-theme="tufte"] {
  --ink: #111;
  --ink2: #333;
  --muted: #666;
  --paper: #fffff8;
  --card: #fffff8;
  --line: #ddd;
  --accent: #111;
  --accent2: #f0f0e8;
  --navy: #111;
  --navy2: #333;
  --font-body: "et-book", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-ui: "et-book", Palatino, Georgia, serif;
  --radius: 0;
  --border-top: none;
  --bg-extra: none;
  --tufte: 1;
}

.preview-root[data-theme="tufte"] .pv-bar {
  background: var(--paper);
  border-bottom: 1px solid #e0e0d8;
}
.preview-root[data-theme="tufte"] .pv-body {
  max-width: 640px;
  padding-right: 160px;
  position: relative;
}
.preview-root[data-theme="tufte"] .pv-card,
.preview-root[data-theme="tufte"] .pv-map,
.preview-root[data-theme="tufte"] .pv-story {
  border: none;
  box-shadow: none;
  background: transparent;
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
}
.preview-root[data-theme="tufte"] .pv-card h2 {
  font-style: italic;
  font-weight: normal;
}
.preview-root[data-theme="tufte"] .pv-kicker {
  color: #666;
  letter-spacing: .04em;
  text-transform: none;
  font-style: italic;
  font-weight: normal;
  font-family: var(--font-body);
}
.preview-root[data-theme="tufte"] .pv-margin-note {
  display: block;
  position: absolute;
  right: 16px;
  top: 80px;
  width: 120px;
  font-size: 11px;
  line-height: 1.35;
  color: #666;
  font-style: italic;
}
.preview-root[data-theme="tufte"] .pv-spark { display: block; }
.preview-root[data-theme="tufte"] .pv-story {
  grid-template-columns: 1fr;
  border-top: 1px solid #ddd;
  padding-top: 14px;
}
.preview-root[data-theme="tufte"] .pv-story .photo-block {
  display: none;
}
.preview-root[data-theme="tufte"] .pv-map {
  border-top: 1px solid #ddd;
  border-radius: 0;
}

/* ========== THEME: Swiss ========== */
.preview-root[data-theme="swiss"] {
  --ink: #111;
  --ink2: #222;
  --muted: #555;
  --paper: #f5f5f5;
  --card: #fff;
  --line: #111;
  --accent: #e30613;
  --accent2: #111;
  --navy: #111;
  --navy2: #e30613;
  --font-body: Helvetica, "Helvetica Neue", Arial, sans-serif;
  --font-ui: Helvetica, "Helvetica Neue", Arial, sans-serif;
  --radius: 0;
  --border-top: 8px solid var(--accent);
  --bg-extra: none;
  --swiss: 1;
}

.preview-root[data-theme="swiss"] .pv-bar {
  background: #fff;
  border-bottom: 3px solid #111;
}
.preview-root[data-theme="swiss"] .pv-brand {
  font-family: Helvetica, Arial, sans-serif;
  font-weight: 900;
  letter-spacing: -.04em;
  text-transform: uppercase;
  font-size: 15px;
}
.preview-root[data-theme="swiss"] .pv-body {
  max-width: none;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 0;
  padding: 0;
}
.preview-root[data-theme="swiss"] .pv-swiss-lockup {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: #111;
  color: #fff;
  padding: 28px 24px;
  min-height: 280px;
  grid-row: 1 / span 3;
}
.preview-root[data-theme="swiss"] .pv-swiss-lockup .big {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 900;
  line-height: .95;
  letter-spacing: -.05em;
  text-transform: uppercase;
}
.preview-root[data-theme="swiss"] .pv-swiss-lockup .red {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-top: 16px;
}
.preview-root[data-theme="swiss"] .pv-card,
.preview-root[data-theme="swiss"] .pv-map,
.preview-root[data-theme="swiss"] .pv-story {
  border-radius: 0;
  border: none;
  border-bottom: 1px solid #111;
  box-shadow: none;
  margin: 0;
}
.preview-root[data-theme="swiss"] .pv-card h2 {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.03em;
  font-size: clamp(20px, 3vw, 28px);
}
.preview-root[data-theme="swiss"] .pv-kicker {
  color: var(--accent);
}
.preview-root[data-theme="swiss"] .pv-story .photo-block {
  border-radius: 0;
  background: #111;
  border: none;
}
.preview-root[data-theme="swiss"] .pv-story {
  grid-template-columns: 100px 1fr;
}

/* ========== THEME: Japanese ========== */
.preview-root[data-theme="japanese"] {
  --ink: #2a2a28;
  --ink2: #4a4844;
  --muted: #8a8680;
  --paper: #f3efe6;
  --card: #faf7f0;
  --line: #d4cfc3;
  --accent: #c23b22;
  --accent2: #e8e0d0;
  --navy: #1a1a18;
  --navy2: #5a5850;
  --font-body: "Hiragino Mincho ProN", "Yu Mincho", "Songti SC", Georgia, serif;
  --font-ui: "Hiragino Sans", "Yu Gothic", "Helvetica Neue", Arial, sans-serif;
  --radius: 0;
  --border-top: none;
  --bg-extra:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(194,59,34,.04), transparent 60%);
  --ma: 1;
}

.preview-root[data-theme="japanese"] .pv-bar {
  background: transparent;
  border-bottom: 1px solid var(--line);
}
.preview-root[data-theme="japanese"] .pv-body {
  max-width: 560px;
  padding: 48px 28px 56px;
}
.preview-root[data-theme="japanese"] .pv-card,
.preview-root[data-theme="japanese"] .pv-map,
.preview-root[data-theme="japanese"] .pv-story {
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 0;
  margin-bottom: 40px;
}
.preview-root[data-theme="japanese"] .pv-card h2 {
  font-weight: normal;
  letter-spacing: .08em;
}
.preview-root[data-theme="japanese"] .pv-kicker {
  color: var(--accent);
  letter-spacing: .2em;
}
.preview-root[data-theme="japanese"] .pv-enso,
.preview-root[data-theme="japanese"] .pv-brush {
  display: block;
  margin: 0 auto 24px;
  opacity: .85;
}
.preview-root[data-theme="japanese"] .pv-story {
  grid-template-columns: 1fr;
  gap: 20px;
}
.preview-root[data-theme="japanese"] .pv-story .photo-block {
  width: 100%;
  height: 120px;
  border-radius: 0;
  background: linear-gradient(180deg, #e8e0d0, #d4cfc3);
  border: none;
}
.preview-root[data-theme="japanese"] .pv-vert-accent {
  display: block;
  writing-mode: vertical-rl;
  position: absolute;
  right: 18px;
  top: 100px;
  font-size: 11px;
  letter-spacing: .35em;
  color: var(--muted);
  font-family: var(--font-ui);
  opacity: .7;
}

/* ========== HYBRID: FUI + Swiss ========== */
.preview-root[data-theme="fui-swiss"] {
  --ink: #d0e8f0;
  --ink2: #8eb0c0;
  --muted: #5a7888;
  --paper: #0a0e12;
  --card: #121820;
  --line: #2a3848;
  --accent: #ff2d55;
  --accent2: #1a2430;
  --navy: #ffffff;
  --navy2: #ff2d55;
  --font-body: Helvetica, "Helvetica Neue", Arial, sans-serif;
  --font-ui: Helvetica, "Helvetica Neue", Arial, monospace;
  --radius: 0;
  --border-top: 4px solid var(--accent);
  --bg-extra:
    linear-gradient(90deg, rgba(255,45,85,.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,45,85,.04) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px;
}

.preview-root[data-theme="fui-swiss"] .pv-bar {
  background: #000;
  border-bottom: 2px solid var(--accent);
}
.preview-root[data-theme="fui-swiss"] .pv-brand {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.03em;
}
.preview-root[data-theme="fui-swiss"] .pv-card h2 {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.03em;
}
.preview-root[data-theme="fui-swiss"] .pv-ascii { display: block; color: var(--accent); }
.preview-root[data-theme="fui-swiss"] .pv-hud-hint {
  display: block;
  color: var(--accent);
  border-color: var(--accent);
  background: #000;
}
.preview-root[data-theme="fui-swiss"] .fui-nodes { display: block; }
.preview-root[data-theme="fui-swiss"] .fui-node { stroke: var(--accent); }
.preview-root[data-theme="fui-swiss"] .fui-node-label { fill: var(--accent); }
.preview-root[data-theme="fui-swiss"] .pv-story .photo-block {
  border-radius: 0;
  background: var(--accent);
  border: none;
}
.preview-root[data-theme="fui-swiss"] .pv-swiss-lockup {
  display: none;
}

/* ========== HYBRID: Tufte + Japanese ========== */
.preview-root[data-theme="tufte-jp"] {
  --ink: #2a2a28;
  --ink2: #4a4844;
  --muted: #8a8680;
  --paper: #faf8f2;
  --card: #faf8f2;
  --line: #ddd8cc;
  --accent: #c23b22;
  --accent2: #f0ebe0;
  --navy: #1a1a18;
  --navy2: #4a4844;
  --font-body: Georgia, "Palatino Linotype", Palatino, "Hiragino Mincho ProN", serif;
  --font-ui: Georgia, Palatino, serif;
  --radius: 0;
  --border-top: none;
  --bg-extra: none;
}

.preview-root[data-theme="tufte-jp"] .pv-bar {
  background: transparent;
  border-bottom: 1px solid var(--line);
}
.preview-root[data-theme="tufte-jp"] .pv-body {
  max-width: 580px;
  padding: 40px 28px 48px;
  padding-right: 150px;
  position: relative;
}
.preview-root[data-theme="tufte-jp"] .pv-card,
.preview-root[data-theme="tufte-jp"] .pv-map,
.preview-root[data-theme="tufte-jp"] .pv-story {
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 0;
  margin-bottom: 28px;
}
.preview-root[data-theme="tufte-jp"] .pv-card h2 { font-style: italic; }
.preview-root[data-theme="tufte-jp"] .pv-kicker {
  color: var(--accent);
  font-style: italic;
  text-transform: none;
  letter-spacing: .06em;
  font-weight: normal;
  font-family: var(--font-body);
}
.preview-root[data-theme="tufte-jp"] .pv-margin-note {
  display: block;
  position: absolute;
  right: 20px;
  top: 100px;
  width: 110px;
  font-size: 11px;
  font-style: italic;
  color: var(--muted);
}
.preview-root[data-theme="tufte-jp"] .pv-spark { display: block; }
.preview-root[data-theme="tufte-jp"] .pv-enso { display: block; margin-bottom: 20px; opacity: .7; }
.preview-root[data-theme="tufte-jp"] .pv-story {
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.preview-root[data-theme="tufte-jp"] .pv-story .photo-block { display: none; }

/* ========== Ink & parchment (current / earlier) ========== */
.preview-root[data-theme="ink-parchment"] {
  /* defaults already match */
}

/* ========== Coastal slate ========== */
.preview-root[data-theme="coastal"] {
  --ink: #1a2332;
  --ink2: #3a4a5c;
  --muted: #6a7a8c;
  --paper: #e8eef2;
  --card: #f4f7f9;
  --line: #c5d0da;
  --accent: #3d6b8a;
  --accent2: #c8d8e4;
  --navy: #152536;
  --navy2: #2a5070;
  --font-body: "Source Serif 4", Georgia, "Iowan Old Style", serif;
  --font-ui: "Source Sans 3", Arial, sans-serif;
  --radius: 10px;
  --border-top: 3px solid var(--accent);
  --bg-extra:
    linear-gradient(180deg, #d8e4ec 0%, transparent 40%),
    radial-gradient(600px 200px at 50% 100%, rgba(61,107,138,.12), transparent 60%);
}

.preview-root[data-theme="coastal"] .pv-bar {
  background: rgba(244,247,249,.94);
  border-bottom-color: var(--line);
}
.preview-root[data-theme="coastal"] .pv-kicker { color: var(--accent); }
.preview-root[data-theme="coastal"] .pv-story .photo-block {
  background: linear-gradient(145deg, #a8c0d0, #6a8fa8);
}

footer.gallery-footer {
  border-top: 1px solid var(--g-line);
  padding: 22px 0 32px;
  color: var(--g-muted);
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 14px;
}
footer.gallery-footer p { margin: 0; }
.copyright { margin: 12px 0 0; font-size: 13px; opacity: .85; }

@media (max-width: 760px) {
  .preview-root[data-theme="swiss"] .pv-body {
    grid-template-columns: 1fr;
  }
  .preview-root[data-theme="swiss"] .pv-swiss-lockup {
    grid-row: auto;
    min-height: 160px;
  }
  .preview-root[data-theme="tufte"] .pv-body,
  .preview-root[data-theme="tufte-jp"] .pv-body {
    padding-right: 20px;
  }
  .preview-root[data-theme="tufte"] .pv-margin-note,
  .preview-root[data-theme="tufte-jp"] .pv-margin-note {
    position: static;
    width: auto;
    margin-bottom: 12px;
  }
  .preview-root[data-theme="japanese"] .pv-vert-accent {
    display: none;
  }
  .theme-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .theme-card { transition: none; }
  .fui-node { transition: none; }
}