/* ==========================================================================
   wshangguan.com
   A white figure ground, Gaussian-noise material, axes spines and ticks.
   Type: STIX Two Text (text, headings, name) and DejaVu Sans (figure labels).
   ========================================================================== */

/* ---------- Fonts (self-hosted, SIL OFL / Bitstream Vera licence) ---------- */
@font-face {
  font-family: "STIX Two Text";
  src: url("../fonts/stix-two-text-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "STIX Two Text";
  src: url("../fonts/stix-two-text-latin-700-normal.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "STIX Two Text";
  src: url("../fonts/stix-two-text-latin-400-italic.woff2") format("woff2");
  font-weight: 400; font-style: italic; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "STIX Two Text";
  src: url("../fonts/stix-two-text-greek-400-italic.woff2") format("woff2");
  font-weight: 400; font-style: italic; font-display: swap;
  unicode-range: U+0370-0377, U+037A-037F, U+0384-038A, U+038C, U+038E-03A1, U+03A3-03FF;
}
@font-face {
  font-family: "DejaVu Sans";
  src: url("../fonts/dejavu-sans.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "DejaVu Sans";
  src: url("../fonts/dejavu-sans-bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  color-scheme: light;

  --ground: #ffffff;
  --ink: #121212;
  --ink-2: #404040;
  --ink-3: #616161;
  --spine: #121212;
  --hairline: #e3e3e3;

  --link: #1f77b4;        /* matplotlib tab:blue */
  --link-hover: #12507d;
  --marker: #ff7f0e;      /* matplotlib tab:orange, marks only (not text) */
  --select: #cfe2f1;
  --mark-target: #e9f2f9;

  --serif: "STIX Two Text", "STIX Two", "Times New Roman", Times, serif;
  --label: "DejaVu Sans", "Bitstream Vera Sans", Verdana, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1.1875rem;
  --text-md: 1.375rem;
  --text-lg: 1.75rem;
  --text-xl: clamp(1.875rem, 1.4rem + 1.4vw, 2.5rem);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-section: clamp(4.5rem, 3rem + 6vw, 8.5rem);

  --wrap: 75rem;
  --gutter: clamp(1rem, 0.5rem + 2.5vw, 2.5rem);
  --measure: 68ch;
  --header-h: 3.25rem;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
  scrollbar-color: var(--ink-3) var(--ground);
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 var(--text-base)/1.55 var(--serif);
  font-kerning: normal;
  font-variant-numeric: oldstyle-nums proportional-nums;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ol, ul, figure { margin: 0; }
p, li { text-wrap: pretty; }
ol, ul { padding: 0; list-style: none; }
img, video, canvas { display: block; max-width: 100%; }
sub { font-size: 0.7em; line-height: 0; vertical-align: -0.25em; }
i, em { font-style: italic; }
strong, b { font-weight: 700; }

[hidden] { display: none !important; }

::selection { background: var(--select); color: var(--ink); }

a {
  color: var(--link);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  text-decoration-color: color-mix(in srgb, var(--link) 45%, transparent);
  transition: color 160ms ease-out, text-decoration-color 160ms ease-out;
}
a:hover { color: var(--link-hover); text-decoration-color: currentColor; }

:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
}

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 20;
  padding: 0.5rem 0.75rem;
  background: var(--ink);
  color: var(--ground);
  font: 400 var(--text-sm)/1 var(--label);
}
.skip:focus { top: 0.5rem; }

.icon { flex: none; width: 1rem; height: 1rem; }

/* ---------- Figure label voice ---------- */
.label,
.figlabel,
.date,
.entry__dates,
.ref__n,
.cite,
.ticks {
  font-family: var(--label);
  font-variant-numeric: tabular-nums lining-nums;
}

/* ---------- Header ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--ground);
  border-bottom: 1px solid var(--hairline);
}
.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: var(--header-h);
}
.wordmark {
  color: var(--ink);
  text-decoration: none;
  font: 700 var(--text-sm)/1 var(--label);
  letter-spacing: 0;
}
.wordmark:hover { color: var(--ink); }
.wordmark { margin-right: auto; }
.masthead nav ul { display: flex; gap: var(--space-3); }
.masthead nav ul a {
  color: var(--ink-2);
  text-decoration: none;
  font: 400 var(--text-sm)/1 var(--label);
  padding-block: 0.5rem;
}
.masthead nav ul a:hover { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.3em; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 1.125rem;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--ink);
  color: var(--ground);
  font: 400 0.9375rem/1 var(--label);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms ease-out, color 160ms ease-out;
}
.btn:hover { background: #2f2f2f; color: var(--ground); }
.btn:active { background: #000; }
.btn--small { min-height: 2rem; padding: 0 0.75rem; font-size: var(--text-sm); }
.btn--line { background: var(--ground); color: var(--ink); }
.btn--line:hover { background: #f2f2f2; color: var(--ink); }
.btn .icon--done { display: none; }
.btn.is-done .icon--copy { display: none; }
.btn.is-done .icon--done { display: block; }
.no-js [data-copy] { display: none; }

/* ---------- Axes (imshow panels) ---------- */
.axes { position: relative; }
.axes__plot {
  position: relative;
  border: 1px solid var(--spine);
  background: var(--ground);
  overflow: hidden;
}
.noise {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  opacity: 0;
  pointer-events: none;
}
.noise--static { opacity: 1; }

.ticks { position: absolute; inset: 0; pointer-events: none; color: var(--ink-2); font-size: 0.6875rem; line-height: 1; }
.tick { position: absolute; white-space: nowrap; }
.tick::before { content: ""; position: absolute; background: var(--spine); }
.tick--x { top: 100%; transform: translateX(-50%); padding-top: 9px; }
.tick--x::before { left: 50%; top: 0; width: 1px; height: 5px; }
.tick--y { right: 100%; transform: translateY(-50%); padding-right: 9px; }
.tick--y::before { top: 50%; right: 0; width: 5px; height: 1px; }

.axes__title {
  margin-bottom: 0.625rem;
  text-align: center;
  color: var(--ink);
  font: 400 0.8125rem/1.2 var(--label);
  font-variant-numeric: tabular-nums lining-nums;
}
.axes__title i { font-family: var(--serif); font-size: 1.15em; }

/* ---------- Hero / Figure 1 ---------- */
.hero { padding-top: clamp(1.25rem, 0.5rem + 2vw, 2rem); }

.fig1 {
  display: grid;
  grid-template-columns: minmax(0, 256fr) minmax(0, 96fr);
  grid-template-areas:
    "a b"
    "cap scrub";
  column-gap: 3.5rem;
  padding-left: 1.75rem; /* room for y tick labels */
}
.fig1__a { grid-area: a; }
.fig1__b { grid-area: b; }

.axes__plot--name { aspect-ratio: 256 / 96; container-type: inline-size; }
.axes__plot--portrait { aspect-ratio: 1; }
.axes__plot--portrait img { width: 100%; height: 100%; object-fit: cover; }

.name {
  position: absolute;
  left: 5.5cqw;
  bottom: 4.5cqw;
  margin: 0;
  font: 700 min(12cqw, 6rem)/0.92 var(--serif);
  letter-spacing: -0.015em;
  color: var(--ink);
}
.name span { display: block; }

.fig1__cap {
  grid-area: cap;
  margin-top: 2.25rem; /* clears x tick labels */
  color: var(--ink-2);
  font: 400 0.9375rem/1.45 var(--label);
}
.fig1__cap p { max-width: 62ch; }
.fig1__cap i, .fig2 figcaption i { font-family: var(--serif); font-size: 1.12em; }
.figlabel { color: var(--ink); font-weight: 700; }

.scrub {
  grid-area: scrub;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
  font: 400 0.9375rem/1.45 var(--label);
}
.scrub input[type="range"] { flex: 1; width: auto; min-width: 4rem; }
.no-js .scrub { display: none; }
.scrub label { color: var(--ink-2); }
.scrub output { min-width: 4.75em; color: var(--ink); font-variant-numeric: tabular-nums; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 11rem;
  height: 1.75rem;
  margin: 0;
  background: transparent;
  cursor: ew-resize;
}
input[type="range"]::-webkit-slider-runnable-track { height: 1px; background: var(--spine); }
input[type="range"]::-moz-range-track { height: 1px; background: var(--spine); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 0.75rem;
  height: 1.125rem;
  margin-top: -0.5625rem;
  background: var(--marker);
  border: 1px solid var(--ink);
  border-radius: 0;
}
input[type="range"]::-moz-range-thumb {
  width: 0.75rem;
  height: 1.125rem;
  background: var(--marker);
  border: 1px solid var(--ink);
  border-radius: 0;
}
input[type="range"]:focus-visible { outline-offset: 2px; }

/* ---------- Intro ---------- */
.intro {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  gap: var(--space-4) var(--space-5);
  margin-top: var(--space-4);
}
.role { font-size: var(--text-md); line-height: 1.35; color: var(--ink); }
.lede {
  margin-top: var(--space-2);
  max-width: 34ch;
  font-size: var(--text-lg);
  line-height: 1.28;
  letter-spacing: -0.005em;
  text-wrap: balance;
}
.seeking {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--space-3);
  max-width: 54ch;
  font-size: var(--text-base);
  line-height: 1.45;
}
.marker {
  flex: none;
  width: 0.75rem;
  height: 0.75rem;
  margin-top: 0.42em;
  background: var(--ink);
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--space-4);
}
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: var(--space-3);
  font: 400 0.9375rem/1.4 var(--label);
}

.updates h2 {
  font: 700 var(--text-md)/1.2 var(--serif);
  margin-bottom: var(--space-2);
}
.updates ol { display: grid; gap: var(--space-3); }
.updates li { display: grid; gap: 0.25rem; }
.date { color: var(--ink-3); font-size: var(--text-xs); letter-spacing: 0.01em; }
.updates p { font-size: 1.0625rem; line-height: 1.45; }

/* ---------- Sections ---------- */
.section { padding-top: var(--space-section); }
.section > h2,
.contact h2 {
  margin-bottom: var(--space-4);
  font: 700 var(--text-xl)/1.1 var(--serif);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.cite {
  font-size: 0.75em;
  text-decoration: none;
  white-space: nowrap;
}
.cite:hover { text-decoration: underline; }

/* Research */
.threads {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-5);
  max-width: 68rem;
}
.thread { max-width: 44ch; line-height: 1.5; }
.thread__lead { color: var(--ink); text-decoration-color: var(--hairline); }
.thread__lead:hover { color: var(--link-hover); text-decoration-color: currentColor; }
.entry:target h3 { background: var(--mark-target); }
.before { margin-top: var(--space-4); max-width: var(--measure); color: var(--ink-2); }

/* Entries: current work, education */
/* The date gutter is a time axis: 1px spine, outward ticks, labels in the figure face. */
.entries {
  --gutter-w: 11rem;
  --spine-x: calc(var(--gutter-w) + 0.875rem);
  position: relative;
  display: grid;
  gap: var(--space-4);
}
.entries::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--spine-x);
  width: 1px;
  background: var(--spine);
}
.entry {
  display: grid;
  grid-template-columns: var(--gutter-w) minmax(0, 1fr);
  grid-template-areas: "dates title" "dates body";
  column-gap: var(--space-4);
}
.entry__dates {
  grid-area: dates;
  position: relative;
  padding-top: 0.3rem;
  text-align: right;
  color: var(--ink-2);
  font-size: var(--text-sm);
  line-height: 1.4;
}
.entry__dates::after {
  content: "";
  position: absolute;
  top: calc(0.3rem + 0.7em);
  left: calc(var(--spine-x) - 5px);
  width: 5px;
  height: 1px;
  background: var(--spine);
}
.entry h3 {
  grid-area: title;
  font: 700 var(--text-md)/1.3 var(--serif);
  text-wrap: balance;
}
.entry h3, .entry__body > p { max-width: var(--measure); }
.entry__body { grid-area: body; margin-top: 0.375rem; }
.entry__body p + p { margin-top: 0.25rem; }
.entry__meta { color: var(--ink-2); }

/* Publications */
.refs { display: grid; gap: var(--space-4); max-width: calc(var(--measure) + 4rem); }
.ref {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  padding: 0.5rem 0.75rem;
  margin: -0.5rem -0.75rem;
  transition: background-color 600ms ease-out;
}
.ref:target { background: var(--mark-target); }
.ref__n { padding-top: 0.25rem; color: var(--ink-3); font-size: var(--text-sm); }
.ref__title { font-weight: 700; line-height: 1.35; text-wrap: balance; }
.ref__title a { color: var(--ink); text-decoration-color: var(--hairline); }
.ref__title a:hover { color: var(--link-hover); text-decoration-color: currentColor; }
.ref__authors { margin-top: 0.25rem; color: var(--ink-2); }
.ref__authors strong { color: var(--ink); font-weight: 700; }
.ref__venue { color: var(--ink-2); }
.ref__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin-top: 0.375rem;
  font: 400 var(--text-sm)/1.4 var(--label);
}

/* Earlier work: a grid of subplots */
.subplots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5) var(--space-4);
}
/* Each slot is the subplot cell; the axes shrinks to its image's aspect, like imshow. */
.sub__slot {
  aspect-ratio: 4 / 3;
  padding: 0 0 1.5rem 2rem;      /* room for tick labels */
  container-type: size;
  display: flex;
  align-items: flex-end;
}
.sub__axes {
  width: min(100cqw, 100cqh * var(--ar));
  aspect-ratio: var(--ar);
}
.sub__plot { width: 100%; height: 100%; }
.sub__plot img,
.sub__plot video { width: 100%; height: 100%; object-fit: fill; }
.sub figcaption { margin-top: var(--space-2); padding-left: 2rem; }
.vctl {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  min-height: 2rem;
  margin-top: 0.5rem;
  padding: 0 0.625rem;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 var(--text-sm)/1 var(--label);
  cursor: pointer;
}
.vctl:hover { background: #f2f2f2; }
.fig-sub__cap {
  margin-top: var(--space-4);
  padding-left: 2rem;
  max-width: 72ch;
  color: var(--ink-2);
  font: 400 0.9375rem/1.5 var(--label);
}
.sub__title { font-weight: 700; line-height: 1.35; text-wrap: balance; }
.sub__title a { color: var(--ink); text-decoration-color: var(--hairline); }
.sub__title a:hover { color: var(--link-hover); text-decoration-color: currentColor; }
.sub__letter { font-weight: 400; color: var(--ink-3); }
.sub__meta { margin-top: 0.25rem; color: var(--ink-3); font: 400 var(--text-sm)/1.4 var(--label); }
.sub__desc { margin-top: 0.5rem; font-size: 1.0625rem; line-height: 1.5; color: var(--ink-2); }

/* Document figures (from papers): a plain 1px frame, no ticks, numbered caption */
.docfig { margin-top: var(--space-3); max-width: 60rem; }
.docfig__frame {
  display: block;
  border: 1px solid var(--spine);
  background: var(--ground);
}
.docfig__frame img { width: 100%; height: auto; }
.docfig figcaption {
  margin-top: 0.75rem;
  max-width: 72ch;
  color: var(--ink-2);
  font: 400 0.9375rem/1.5 var(--label);
}
.refs .docfig { max-width: 44rem; }

/* Photography */
.fig2 { padding-left: 1.75rem; }
.axes__plot--photo { aspect-ratio: 120 / 24; }
.fig2 figcaption {
  margin-top: 2.25rem;
  max-width: 72ch;
  color: var(--ink-2);
  font: 400 0.9375rem/1.5 var(--label);
}
.photo-link {
  position: absolute;
  inset: auto auto 1rem 1rem;
}

/* Contact */
.contact { padding-block: var(--space-section) var(--space-5); }
.contact__email {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
}
.contact__email a {
  font: 400 clamp(1.75rem, 1.2rem + 2.2vw, 3rem)/1.1 var(--serif);
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}
.contact__fallback { margin-top: var(--space-2); font: 400 var(--text-md)/1.4 var(--serif); }
.colophon {
  margin-top: var(--space-5);
  padding-top: var(--space-2);
  border-top: 1px solid var(--hairline);
  color: var(--ink-3);
  font: 400 var(--text-sm)/1.5 var(--label);
}

/* ---------- Responsive ---------- */
@media (max-width: 64rem) {
  .intro { grid-template-columns: minmax(0, 1fr); }
  .updates { max-width: var(--measure); }
  .subplots { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 48rem) {
  :root { --text-base: 1.125rem; --text-md: 1.25rem; --text-lg: 1.5rem; --header-h: 5rem; }
  .masthead__inner { flex-wrap: wrap; min-height: 0; padding-block: 0.5rem 0; row-gap: 0; }
  .masthead nav { order: 3; flex-basis: 100%; overflow-x: auto; scrollbar-width: none; }
  .masthead nav ul { gap: 1.25rem; padding-block: 0.625rem 0.75rem; }
  .masthead nav ul a { font-size: 0.8125rem; white-space: nowrap; }

  .fig1 {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "a" "b" "cap" "scrub";
    row-gap: 2.25rem;
    padding-left: 1.5rem;
  }
  .fig1__b { width: min(100%, 15rem); }
  .fig1__cap { margin-top: 0; font-size: var(--text-sm); }
  .scrub { margin-top: -1.25rem; font-size: var(--text-sm); }

  .threads { grid-template-columns: minmax(0, 1fr); }
  .entries { --spine-x: 0px; padding-left: 1.125rem; }
  .entry {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "dates" "title" "body";
  }
  .entry__dates { padding-top: 0; text-align: left; }
  .entry__dates::after { top: 0.7em; left: -1.125rem; }
  .ref { grid-template-columns: 2.25rem minmax(0, 1fr); }
  .subplots { grid-template-columns: minmax(0, 1fr); }
  .fig2 { padding-left: 1.5rem; }
  .sub__slot { aspect-ratio: 5 / 4; }
}

@media print {
  .masthead, .scrub, [data-copy], .noise { display: none !important; }
  a { color: inherit; }
}

/* ==========================================================================
   Photography: homepage strip, gallery page, viewer
   ========================================================================== */
/* One row of equal-height photos, each at its own aspect ratio (nothing is cropped). */
.photo-strip {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  text-decoration: none;
}
.photo-strip__frame {
  display: block;
  min-width: 0;
  border: 1px solid var(--spine);
  overflow: hidden;
  background: var(--ground);
}
.photo-strip__frame img { width: 100%; height: 100%; object-fit: cover; transition: opacity 160ms ease-out; }
.photo-strip:hover img { opacity: 0.88; }
.fig2--photos { padding-left: 0; }
.fig2--photos figcaption { margin-top: 0.875rem; }

.photo img,
.lightbox img,
.photo-strip img {
  -webkit-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.gallery { padding-top: clamp(2rem, 1rem + 3vw, 3.5rem); }
.gallery__title {
  font: 700 clamp(2.25rem, 1.6rem + 2.6vw, 4rem)/1.05 var(--serif);
  letter-spacing: -0.015em;
}
.gallery__lede {
  margin-top: var(--space-2);
  color: var(--ink-2);
  font: 400 0.9375rem/1.5 var(--label);
}
.gallery__empty { margin-top: var(--space-4); }

.photos {
  columns: 3 18rem;
  column-gap: var(--space-4);
  margin-top: var(--space-4);
}
.photo {
  break-inside: avoid;
  margin: 0 0 var(--space-4);
}
.photo__open {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--spine);
  background: var(--ground);
  cursor: zoom-in;
}
.photo__open img { width: 100%; height: auto; }
.photo__open:hover img { opacity: 0.92; }
.photo figcaption,
.lightbox__cap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.125rem 0.75rem;
  align-items: baseline;
  margin-top: 0.625rem;
}
.photo__title { font: 700 1.0625rem/1.35 var(--serif); }
.photo__meta { color: var(--ink-3); font: 400 var(--text-sm)/1.4 var(--label); }

.lightbox {
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  margin: 0;
  padding: clamp(0.75rem, 2vw, 1.5rem) var(--gutter);
  border: 0;
  background: var(--ground);
  color: var(--ink);
}
.lightbox[open] { display: flex; flex-direction: column; }
.lightbox::backdrop { background: var(--ground); }
.lightbox__figure {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.lightbox__img {
  max-width: 100%;
  max-height: calc(100% - 3rem);
  width: auto;
  height: auto;
  object-fit: contain;
  border: 1px solid var(--spine);
}
.lightbox__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding-top: 0.75rem;
}
.lightbox__count {
  min-width: 6em;
  text-align: center;
  color: var(--ink-2);
  font: 400 var(--text-sm)/1 var(--label);
  font-variant-numeric: tabular-nums;
}

.gallery__footer { padding-block: var(--space-5); }
.gallery__rights {
  max-width: var(--measure);
  color: var(--ink-2);
  font: 400 0.9375rem/1.5 var(--label);
}
.masthead nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-underline-offset: 0.3em; }

/* ==========================================================================
   Gallery Studio (the uploader; not linked from the site)
   ========================================================================== */
.studio { padding-block: clamp(2rem, 1rem + 3vw, 3.5rem) var(--space-5); max-width: calc(60rem + 2 * var(--gutter)); }
.studio__title { font: 700 clamp(2rem, 1.5rem + 2vw, 3rem)/1.1 var(--serif); }
.studio__lede { margin-top: var(--space-2); max-width: var(--measure); color: var(--ink-2); }
.studio__step { margin-top: var(--space-5); }
.studio__step h2 { font: 700 var(--text-md)/1.25 var(--serif); margin-bottom: var(--space-2); }
.studio__help { max-width: var(--measure); color: var(--ink-2); font: 400 0.9375rem/1.5 var(--label); }
.studio__help code { font-size: 0.9em; }
.studio__details { margin-top: var(--space-2); font: 400 0.9375rem/1.5 var(--label); }
.studio__details summary { cursor: pointer; color: var(--link); }
.studio__steps { margin-top: var(--space-1); padding-left: 1.5rem; list-style: decimal; display: grid; gap: 0.375rem; max-width: var(--measure); }
.studio__row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-2); margin-top: var(--space-3); }
.studio__row .field { flex: 1 1 18rem; }
.studio__connected { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); font: 400 0.9375rem/1.5 var(--label); }
.studio__ok { display: inline-block; width: 0.625rem; height: 0.625rem; margin-right: 0.5rem; background: var(--ink); }
.studio__status { margin-top: var(--space-1); min-height: 1.5em; color: var(--ink-2); font: 400 0.9375rem/1.5 var(--label); }
.studio__status[data-kind="error"] { color: #b3261e; }
.studio__status[data-kind="done"] { color: var(--ink); }
.studio__alert { margin-top: var(--space-3); font: 700 0.9375rem/1.5 var(--label); }
.studio__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-1) var(--space-3); margin-top: var(--space-3); }
.studio__actions .studio__status { margin-top: 0; }

.field { display: grid; gap: 0.375rem; }
.field__label { color: var(--ink-2); font: 400 var(--text-sm)/1.2 var(--label); }
.field input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0 0.75rem;
  border: 1px solid var(--spine);
  border-radius: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 1rem/1.2 var(--label);
}
.field input::placeholder { color: var(--ink-3); }
.check { display: flex; align-items: center; gap: 0.5rem; margin-top: var(--space-2); font: 400 0.9375rem/1.4 var(--label); cursor: pointer; }
.check input { width: 1rem; height: 1rem; accent-color: var(--ink); }

.drop {
  position: relative;
  display: grid;
  place-items: center;
  gap: 0.25rem;
  padding: var(--space-5) var(--space-3);
  border: 1px dashed var(--spine);
  text-align: center;
  cursor: pointer;
  transition: background-color 160ms ease-out;
}
.drop:hover, .drop.is-over { background: var(--mark-target); }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop:focus-within { outline: 2px solid var(--link); outline-offset: 3px; }
.drop__main { font: 700 1.125rem/1.3 var(--serif); }
.drop__sub { color: var(--ink-3); font: 400 var(--text-sm)/1.4 var(--label); }

.queue { display: grid; gap: var(--space-3); margin-top: var(--space-3); }
.queue__item { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: var(--space-3); align-items: start; }
.queue__preview {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--spine);
  overflow: hidden;
  color: var(--ink-3);
  font: 400 var(--text-xs)/1.3 var(--label);
}
/* Absolutely placed so every browser fits the whole photo inside the box (no cropping). */
.queue__preview img,
.pubs__thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.queue__body { display: grid; gap: 0.625rem; justify-items: start; min-width: 0; }
.queue__meta { color: var(--ink-2); font: 400 var(--text-sm)/1.45 var(--label); overflow-wrap: anywhere; }
.queue__meta.is-error { color: #b3261e; }
.queue__fields { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr) minmax(0, 0.8fr); gap: 0.75rem; width: 100%; }

.pubs { display: grid; grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr)); gap: var(--space-3); margin-top: var(--space-2); }
.pubs__item { display: grid; gap: 0.5rem; justify-items: start; }
.pubs__item.is-busy { opacity: 0.5; }
.pubs__thumb {
  position: relative;
  width: 100%;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--spine);
  overflow: hidden;
  color: var(--ink-3);
  font: 400 var(--text-xs)/1.3 var(--label);
}

.pubs__text { font: 400 var(--text-sm)/1.4 var(--label); overflow-wrap: anywhere; }
.btn.is-armed { background: #b3261e; border-color: #b3261e; color: var(--ground); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

@media (max-width: 48rem) {
  .photo-strip__frame:nth-child(n + 3) { display: none; }
  .photos { columns: 1; }
  .queue__item { grid-template-columns: minmax(0, 1fr); }
  .queue__preview { max-width: 16rem; width: 100%; }
  .queue__fields { grid-template-columns: minmax(0, 1fr); }
}

/* Studio settings */
.settings { display: grid; gap: var(--space-3); margin-top: var(--space-2); max-width: 40rem; }
.settings__group { display: grid; gap: var(--space-2); margin: 0; padding: var(--space-2) 0 0; border: 0; border-top: 1px solid var(--hairline); }
.settings__group legend { padding: 0 0.5rem 0 0; font: 700 1.0625rem/1.3 var(--serif); color: var(--ink); }
.settings__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.settings .check { margin-top: 0; }
.settings #s-reset { justify-self: start; }
.field select {
  width: 100%;
  min-height: 2.75rem;
  padding: 0 0.75rem;
  border: 1px solid var(--spine);
  border-radius: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 1rem/1.2 var(--label);
}
.field input:disabled, .field select:disabled { opacity: 0.45; }
.field input[type="range"] { width: 100%; }
.field output { color: var(--ink); font-variant-numeric: tabular-nums; }
.field__hint { color: var(--ink-3); font: 400 var(--text-sm)/1.45 var(--label); max-width: var(--measure); }

/* Gallery: owner shortcut and camera line */
.gallery__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--space-2); }
.photo__camera { flex-basis: 100%; color: var(--ink-3); font: 400 var(--text-xs)/1.4 var(--label); }

/* Camera details: a compact line in the grid; the full set in the viewer */
.photo__spec { display: none; }
.lightbox .photo__camera { display: none; }
.lightbox .photo__spec {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.5rem;
  flex-basis: 100%;
  margin: 0.375rem 0 0;
  font: 400 var(--text-xs)/1.4 var(--label);
  font-variant-numeric: tabular-nums;
}
.lightbox .photo__spec div { display: flex; gap: 0.375rem; }
.lightbox .photo__spec dt { color: var(--ink-3); }
.lightbox .photo__spec dd { margin: 0; color: var(--ink); }
.lightbox__cap { justify-content: center; text-align: center; }