/* ============================================================================
   Photographs — a typographic, editorial reading of Te Papa's openly-licensed
   photography. Self-contained: this page does not share style.css. It echoes the
   project's warm-charcoal dark palette so the theme toggle feels of a piece, but
   the light default is a warm "paper" gallery catalogue.
   ============================================================================ */

/* ---- Fraunces: a high-contrast display serif, variable weight + optical size.
   Two latin files (roman + italic) self-hosted alongside the project's fonts. -- */
@font-face {
  font-family: 'Fraunces';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('/fonts/fraunces-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Fraunces';
  font-style: italic;
  font-weight: 300 900;
  font-display: swap;
  src: url('/fonts/fraunces-italic-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url('/fonts/roboto-latin.woff2') format('woff2');
}
/* Archivo: a sturdy grotesque used for the page header / masthead title. */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/archivo-latin.woff2') format('woff2');
}

/* ---- Tokens ------------------------------------------------------------- */
:root {
  --paper: #f4f0e7;            /* warm gallery off-white */
  --paper-2: #ece6d9;          /* recessed paper (fields, chips) */
  --ink: #1a1712;              /* near-black warm ink */
  --ink-soft: #4b443a;         /* secondary text */
  --muted: #8a8073;            /* captions, numbers */
  --rule: #d8d0c0;             /* hairlines */
  --rule-strong: #b9af9c;
  --accent: #b23a2e;           /* editorial vermilion — numbers, rules, links */
  --accent-soft: #d97a5f;

  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Roboto', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --display: 'Archivo', 'Helvetica Neue', system-ui, Arial, sans-serif;  /* page header / masthead title */

  --measure: 36rem;
  --gap: clamp(20px, 3vw, 44px);
  --pad: clamp(20px, 5vw, 84px);

  color-scheme: light;
}

[data-theme="dark"] {
  --paper: #141312;
  --paper-2: #201f1d;
  --ink: #ece7df;
  --ink-soft: #c7c0b6;
  --muted: #8f8678;
  --rule: #322f2b;
  --rule-strong: #4b4843;
  --accent: #e8765f;
  --accent-soft: #f0987f;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

::selection { background: var(--accent); color: var(--paper); }

a { color: inherit; }

/* Shared small caps / overline treatment for metadata */
.overline,
.themes-label,
.search-label,
.plate-maker,
.plate-index,
.theme-chip,
.lb-meta,
.standfirst {
  font-family: var(--sans);
}

/* ============================================================================
   Masthead
   ============================================================================ */
.masthead {
  padding: clamp(28px, 5vw, 64px) var(--pad) 0;
  max-width: 1500px;
  margin: 0 auto;
}

.masthead-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 14px;
}

.overline {
  margin: 0;
  font-size: clamp(10px, 1.1vw, 12px);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-soft);
}

.title {
  margin: clamp(18px, 4vw, 40px) 0 0;
  font-family: var(--display);
  font-weight: 800;
  line-height: 0.84;
  letter-spacing: -0.035em;
  /* Archivo is wider than the old serif — size to fill the measure on one line
     across viewports without clipping (the serif used 19vw / 320px). */
  font-size: clamp(40px, 13vw, 208px);
}
/* Whole wordmark is one consistent Archivo weight — no two-tone contrast. */
.title .ital { font-style: normal; font-weight: inherit; }

.colophon {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: clamp(16px, 4vw, 60px);
  margin-top: clamp(20px, 3vw, 36px);
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.lede {
  margin: 0;
  max-width: var(--measure);
  font-size: clamp(17px, 1.7vw, 23px);
  line-height: 1.42;
  color: var(--ink-soft);
}
.lede em { color: var(--ink); font-style: italic; }

.standfirst {
  margin: 0;
  text-align: right;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.6;
  white-space: nowrap;
}
.standfirst .count {
  display: block;
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 56px);
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.nb { white-space: nowrap; }

/* ============================================================================
   Controls
   ============================================================================ */
.controls {
  max-width: 1500px;
  margin: clamp(36px, 6vw, 72px) auto 0;
  padding: 0 var(--pad);
}

.search { margin: 0; }
.search-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.search-field {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
}
.search-field input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(28px, 5vw, 56px);
  font-style: italic;
  font-weight: 340;
  letter-spacing: -0.01em;
  padding: 0;
}
.search-field input::placeholder { color: var(--rule-strong); font-style: italic; }
.search-field input:focus { outline: none; }
.search-go {
  flex: none;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  transition: transform .15s ease;
}
.search-go:hover { transform: translateX(3px); }

.themes {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-top: 20px;
}
.themes-label {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.theme-chip {
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  padding: 2px 0;
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 0.01em;
  transition: color .15s ease, border-color .15s ease;
}
.theme-chip:hover,
.theme-chip[aria-pressed="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Theme toggle in masthead */
.theme-switch {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.theme-opt {
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--muted); letter-spacing: inherit; text-transform: inherit;
  font: inherit;
}
.theme-opt[aria-checked="true"] { color: var(--accent); }
.theme-sep { color: var(--rule-strong); }

/* ============================================================================
   Ways in — curated subsets phrased as one editorial question.
   ============================================================================ */
.ways {
  max-width: 1500px;
  margin: clamp(36px, 5vw, 64px) auto 0;
  padding: clamp(24px, 3vw, 36px) var(--pad) 0;
  border-top: 1px solid var(--rule);
}
.ways-q {
  margin: 0;
  font-size: clamp(22px, 3vw, 40px);
  line-height: 1.28;
  font-weight: 360;
  letter-spacing: -0.012em;
  color: var(--ink-soft);
  max-width: 22ch;
}
.way {
  font: inherit;
  background: none;
  border: 0;
  padding: 0 0 1px;
  margin: 0;
  cursor: pointer;
  color: var(--ink);
  font-style: italic;
  white-space: nowrap;
  border-bottom: 2px solid var(--rule-strong);
  transition: color .15s ease, border-color .15s ease;
}
.way:hover,
.way:focus-visible { color: var(--accent); border-bottom-color: var(--accent); outline: none; }
.way[aria-pressed="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.ways-punct { color: var(--ink-soft); font-style: normal; }

/* Significant photographers — a compact second line within the same block.
   Smaller than the subject question; names are inline links with the blurb +
   era carried in a hover tooltip. */
.ways-makers {
  margin: clamp(18px, 2vw, 26px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.6;
  color: var(--muted);
}
.pname {
  font: inherit;
  background: none;
  border: 0;
  padding: 0 0 1px;
  margin: 0;
  cursor: pointer;
  color: var(--ink-soft);
  font-style: italic;
  border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.pname:hover,
.pname:focus-visible { color: var(--accent); border-bottom-color: var(--accent); outline: none; }
.pname[aria-pressed="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.pname-sep { color: var(--rule-strong); }

/* ============================================================================
   Plates (the photograph grid) — CSS columns let varied aspect ratios flow as
   a typographic masonry. Each figure is a "plate" with a wall-label.
   ============================================================================ */
#main {
  max-width: 1500px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 80px) var(--pad) 0;
}

.plates {
  column-width: 340px;
  column-gap: var(--gap);
}
@media (min-width: 1100px) { .plates { column-count: 3; } }
@media (min-width: 1500px) { .plates { column-count: 4; } }

.plate {
  break-inside: avoid;
  margin: 0 0 var(--gap);
  cursor: pointer;
  -webkit-column-break-inside: avoid;
}

/* Featured first plate spans the full measure for an editorial opener */
.plate.is-hero {
  column-span: all;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(24px, 4vw, 60px);
  align-items: end;
  margin-bottom: clamp(48px, 6vw, 88px);
  padding-bottom: clamp(40px, 5vw, 72px);
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 720px) {
  .plate.is-hero { grid-template-columns: 1fr; align-items: start; }
}

.plate-img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--paper-2);
}
.plate-img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--paper-2);
  transition: filter .4s ease, transform .5s cubic-bezier(.2,0,0,1);
  filter: saturate(0.96);
}
.plate:hover .plate-img { transform: scale(1.025); filter: saturate(1.05); }

.plate-img-wrap::after {
  /* hairline frame that reads as a print border */
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
  pointer-events: none;
}

.plate-label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 12px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--rule);
}
.plate-index {
  grid-row: 1 / span 3;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
}
.plate-title {
  font-size: clamp(18px, 1.5vw, 22px);
  font-style: italic;
  font-weight: 380;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}
.plate-maker {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 4px;
}
.plate-date {
  font-size: 13px;
  color: var(--muted);
  margin-top: 1px;
}

/* Hero overrides — larger type, image left */
.plate.is-hero .plate-img-wrap { grid-row: 1; }
.plate.is-hero .plate-label {
  border-top: 0;
  padding-top: 0;
  display: block;
  align-self: end;
}
.plate.is-hero .plate-index {
  display: block;
  font-size: 13px;
  margin-bottom: 14px;
}
.plate.is-hero .plate-title {
  font-size: clamp(30px, 4vw, 60px);
  line-height: 1.04;
  margin-bottom: 16px;
}
.plate.is-hero .plate-maker { font-size: 13px; }
.plate.is-hero .plate-date { font-size: 16px; margin-top: 6px; }

/* ============================================================================
   States
   ============================================================================ */
.state {
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-align: center;
  padding: 40px 0;
}
.state.is-error { color: var(--accent); }

.sentinel { height: 4px; }

.end-note {
  text-align: center;
  font-style: italic;
  color: var(--muted);
  padding: 40px 0 10px;
  font-size: 16px;
}

/* loading shimmer for plates being fetched */
.spinner {
  display: inline-block;
  width: 13px; height: 13px;
  border: 2px solid var(--rule-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  vertical-align: -2px;
  margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================================
   Footer
   ============================================================================ */
.footer {
  max-width: 1500px;
  margin: clamp(60px, 8vw, 110px) auto 0;
  padding: 24px var(--pad) 48px;
  border-top: 1px solid var(--rule);
}
.footer p {
  margin: 0;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 60ch;
}
.footer a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }
.footer a:hover { color: var(--accent); }

/* ============================================================================
   Lightbox
   ============================================================================ */
.lightbox[hidden] { display: none; }
.lightbox {
  position: fixed; inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--paper) 92%, #000 8%);
  backdrop-filter: blur(8px);
  padding: clamp(16px, 4vw, 48px);
  animation: lbfade .2s ease;
}
[data-theme="dark"] .lightbox { background: rgba(8,8,7,0.92); }
@keyframes lbfade { from { opacity: 0; } to { opacity: 1; } }

.lb-figure {
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 22px;
  max-width: 1200px;
  width: 100%;
  height: 100%;
}
.lb-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.lb-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 30px 80px rgba(0,0,0,0.45);
  background: var(--paper-2);
}

.lb-caption {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 40px;
  align-items: end;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}
.lb-title {
  grid-column: 1;
  font-size: clamp(22px, 3vw, 38px);
  font-style: italic;
  font-weight: 360;
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.01em;
}
.lb-sub {
  grid-column: 1;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 4px;
}
.lb-sub .lb-maker { letter-spacing: 0.12em; text-transform: uppercase; }
.lb-meta {
  grid-column: 2;
  grid-row: 1 / span 2;
  text-align: right;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  line-height: 1.8;
  align-self: start;
}
.lb-meta a { color: var(--accent); text-decoration: none; }
.lb-meta a:hover { text-decoration: underline; }
.lb-rights { display: block; }

.lb-close, .lb-nav {
  position: absolute;
  background: none;
  border: 0;
  color: var(--ink-soft);
  cursor: pointer;
  font-family: var(--serif);
  line-height: 1;
  transition: color .15s ease, transform .15s ease;
  z-index: 2;
}
.lb-close {
  top: clamp(12px, 2vw, 28px);
  right: clamp(16px, 3vw, 36px);
  font-size: 40px;
}
.lb-close:hover { color: var(--accent); }
.lb-nav {
  top: 50%;
  transform: translateY(-50%);
  font-size: 30px;
  padding: 16px;
}
.lb-prev { left: clamp(4px, 1.5vw, 20px); }
.lb-next { right: clamp(4px, 1.5vw, 20px); }
.lb-nav:hover { color: var(--accent); }
.lb-nav:disabled { opacity: 0.25; cursor: default; }

@media (max-width: 640px) {
  .lb-caption { grid-template-columns: 1fr; }
  .lb-meta { grid-column: 1; grid-row: auto; text-align: left; }
}

body.lb-open { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}