:root {
  color-scheme: dark;
  --bg: #151515;
  --panel: #232323;
  --panel-2: #2d2b28;
  --text: #f7f1e8;
  --muted: #b7afa3;
  --line: #464039;
  --gold: #d4b66f;
  --blue: #7eb0c8;
  --red: #e68b6c;
  --green: #8fbf93;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
  --restore-filter: contrast(1.18) brightness(1.06) saturate(1.12) sepia(0.07);
  --colorize-opacity: 0.15;
  --color-highlight: #d1bd91;
  --color-mid: #8b7b61;
  --color-shadow: #4e5652;
  --color-accent: #6f8a7c;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(126, 176, 200, 0.12), transparent 32rem),
    linear-gradient(180deg, #181818 0%, var(--bg) 36rem);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button,
.primary-action {
  min-height: 42px;
  border: 1px solid var(--line);
  background: #1b1b1b;
  color: var(--text);
  padding: 0 14px;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

button:hover,
.primary-action:hover {
  border-color: var(--gold);
  transform: translateY(-1px);
}

.primary-action {
  display: inline-flex;
  align-items: center;
  background: var(--gold);
  color: #1a1712;
  font-weight: 800;
}

.hero {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero__media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(21, 21, 21, 0.97), rgba(21, 21, 21, 0.74), rgba(21, 21, 21, 0.36)),
    url("./assets/photos/originals/photo-001.jpg") center / cover;
  filter: saturate(0.82) contrast(1.08);
  transform: scale(1.02);
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px clamp(18px, 4vw, 58px);
}

.topbar > div {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.brand {
  color: var(--gold);
  font-weight: 900;
}

.topbar a:not(.brand) {
  color: var(--muted);
  padding: 10px 8px;
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(880px, calc(100% - 36px));
  margin: 82px 0 0 clamp(18px, 7vw, 104px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
dl {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Noto Serif SC", "Songti SC", serif;
}

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(40px, 7vw, 82px);
  line-height: 1.06;
}

.hero__content > p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 170px));
  gap: 14px;
  margin: 0;
}

.hero__stats div {
  padding: 17px 18px;
  border: 1px solid rgba(212, 182, 111, 0.36);
  background: rgba(18, 18, 18, 0.58);
}

.hero__stats dt {
  color: var(--gold);
  font-size: 30px;
  font-weight: 900;
}

.hero__stats dd {
  margin: 4px 0 0;
  color: var(--muted);
}

main {
  width: min(1540px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 70px;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(240px, 1.7fr) repeat(5, minmax(128px, 0.55fr)) auto auto;
  gap: 12px;
  align-items: end;
  padding: 16px;
  border: 1px solid var(--line);
  background: rgba(35, 35, 35, 0.95);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: #181818;
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212, 182, 111, 0.18);
}

#favorite-only[aria-pressed="true"] {
  border-color: var(--gold);
  color: var(--gold);
}

.gallery-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin: 44px 0 18px;
}

.project-intro h2,
.gallery-head h2,
.story-lab h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
}

.project-intro {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(420px, 1.18fr);
  gap: 22px;
  margin-bottom: 28px;
  padding: 26px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(212, 182, 111, 0.1), transparent 36%),
    rgba(35, 35, 35, 0.72);
  box-shadow: var(--shadow);
}

.project-copy {
  align-self: center;
}

.project-copy h2 {
  margin-bottom: 18px;
  line-height: 1.18;
}

.project-copy p,
.school-grid p {
  color: var(--muted);
  line-height: 1.82;
}

.school-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.school-grid article {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.18);
}

.school-grid span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.school-grid h3 {
  margin: 8px 0 10px;
  line-height: 1.35;
}

.school-grid p {
  margin-bottom: 0;
}

.wide-card {
  grid-column: 1 / -1;
}

.feature-section {
  margin: 28px 0;
  padding: 26px;
  border: 1px solid var(--line);
  background: rgba(35, 35, 35, 0.66);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.2);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(28px, 4vw, 42px);
}

.section-head > p {
  max-width: 560px;
  margin: 0 0 5px;
  color: var(--muted);
  line-height: 1.75;
}

.curated-track {
  display: grid;
  grid-template-columns: repeat(8, minmax(260px, 1fr));
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x proximity;
}

.curated-card {
  position: relative;
  display: grid;
  min-width: 260px;
  align-content: end;
  min-height: 440px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #111;
  text-align: left;
  scroll-snap-align: start;
}

.curated-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.32) contrast(1.08);
}

.curated-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 28%, rgba(0, 0, 0, 0.86));
}

.curated-card > *:not(img) {
  position: relative;
  z-index: 1;
  margin-left: 16px;
  margin-right: 16px;
}

.curated-index {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 1px solid rgba(212, 182, 111, 0.56);
  background: rgba(0, 0, 0, 0.58);
  color: var(--gold);
  font-size: 24px;
  font-weight: 900;
}

.curated-card .eyebrow {
  margin-top: 150px;
}

.curated-card h3 {
  margin-top: 4px;
  line-height: 1.42;
}

.curated-card p {
  margin-bottom: 18px;
  color: var(--muted);
}

.timeline-view {
  position: relative;
  display: grid;
  gap: 18px;
}

.timeline-view::before {
  content: "";
  position: absolute;
  left: 72px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--gold), rgba(212, 182, 111, 0.18));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 22px;
}

.timeline-year {
  position: relative;
  z-index: 1;
  align-self: start;
  width: 118px;
  padding: 12px 0;
  border: 1px solid rgba(212, 182, 111, 0.48);
  background: #171717;
  color: var(--gold);
  text-align: center;
  font-size: 28px;
  font-weight: 900;
}

.timeline-copy {
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.18);
  padding: 18px;
}

.timeline-copy h3 {
  margin: 0 0 8px;
}

.timeline-copy p {
  color: var(--muted);
  line-height: 1.7;
}

.timeline-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.timeline-thumb {
  width: 92px;
  height: 72px;
  padding: 0;
  overflow: hidden;
}

.timeline-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.result-count {
  margin: 0 0 6px;
  color: var(--muted);
}

.gallery {
  display: grid;
  gap: 18px;
}

.gallery--museum {
  grid-template-columns: repeat(auto-fill, minmax(285px, 1fr));
}

.gallery--dense {
  grid-template-columns: repeat(auto-fill, minmax(205px, 1fr));
  gap: 12px;
}

.gallery--masonry {
  display: block;
  columns: 4 260px;
  column-gap: 18px;
}

.gallery--comparison {
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
}

.photo-card {
  position: relative;
  display: grid;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  color: inherit;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.22);
}

.gallery--masonry .photo-card {
  break-inside: avoid;
  margin-bottom: 18px;
}

.photo-card:hover {
  border-color: rgba(212, 182, 111, 0.68);
}

.photo-card__image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #111;
}

.gallery--dense .photo-card__image {
  aspect-ratio: 1 / 1;
}

.gallery--masonry .photo-card__image {
  aspect-ratio: var(--ratio, 4 / 3);
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-card__restored {
  position: absolute;
  inset: 0 0 0 50%;
  filter: var(--restore-filter);
  overflow: hidden;
}

.photo-card__restored img {
  position: absolute;
  inset: 0;
  width: 200%;
  max-width: none;
  transform: translateX(-50%);
}

.gallery:not(.gallery--comparison) .photo-card__restored {
  display: none;
}

.split-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  display: none;
  width: 2px;
  background: var(--gold);
}

.gallery--comparison .split-line {
  display: block;
}

.badge,
.favorite-dot {
  position: absolute;
  top: 12px;
  padding: 5px 8px;
  background: rgba(18, 18, 18, 0.76);
  font-size: 12px;
  font-weight: 900;
}

.badge {
  left: 12px;
  color: var(--gold);
}

.favorite-dot {
  right: 12px;
  color: var(--red);
}

.photo-card__body {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.photo-card h3 {
  margin: 0;
  display: -webkit-box;
  min-height: 3.1em;
  overflow: hidden;
  font-size: 16px;
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.gallery--dense .photo-card h3 {
  font-size: 14px;
}

.card-meta,
.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.mini-tags span,
.tag-list span {
  border: 1px solid var(--line);
  padding: 4px 7px;
  color: var(--blue);
}

.empty-state,
.story-lab {
  padding: 42px;
  border: 1px solid var(--line);
  background: rgba(35, 35, 35, 0.64);
  color: var(--muted);
}

.story-lab {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(280px, 1fr);
  gap: 28px;
  margin-top: 42px;
}

.story-lab p {
  margin: 0;
  line-height: 1.8;
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 10px;
  width: min(1540px, calc(100% - 32px));
  margin: 0 auto 28px;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
}

.site-footer strong {
  color: var(--text);
}

.site-footer p {
  margin: 4px 0 0;
}

.photo-dialog {
  width: min(1380px, calc(100% - 24px));
  max-height: min(900px, calc(100vh - 24px));
  border: 1px solid var(--line);
  padding: 0;
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}

.photo-dialog::backdrop {
  background: rgba(0, 0, 0, 0.8);
}

.dialog-close {
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 2;
  width: 42px;
  height: 42px;
  padding: 0;
  background: rgba(18, 18, 18, 0.86);
  font-size: 28px;
  line-height: 1;
}

.dialog-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(380px, 0.65fr);
}

.viewer-panel {
  min-width: 0;
  padding: 20px;
  background: #111;
}

.compare-stage {
  --split: 52%;
  position: relative;
  height: min(66vh, 670px);
  min-height: 360px;
  overflow: hidden;
  border: 1px solid #2d2d2d;
  background: #080808;
}

.compare-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.compare-image--after {
  filter: var(--restore-filter);
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
}

.compare-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 36% 42%, var(--color-accent), transparent 32%),
    linear-gradient(135deg, var(--color-highlight), var(--color-mid) 48%, var(--color-shadow));
  mix-blend-mode: color;
  opacity: var(--colorize-opacity);
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
  pointer-events: none;
}

.compare-stage::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split);
  z-index: 2;
  width: 2px;
  background: var(--gold);
  box-shadow: 0 0 0 999px transparent;
}

.compare-label {
  position: absolute;
  top: 14px;
  z-index: 3;
  padding: 6px 9px;
  background: rgba(0, 0, 0, 0.72);
  font-size: 12px;
  font-weight: 900;
}

.compare-label--before {
  right: 14px;
}

.compare-label--after {
  left: 14px;
  color: var(--gold);
}

.compare-slider {
  margin: 16px 0 0;
  accent-color: var(--gold);
}

.viewer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.detail-panel {
  max-height: min(900px, calc(100vh - 24px));
  overflow: auto;
  padding: 42px 34px;
}

.detail-panel h2 {
  line-height: 1.38;
}

.detail-panel p {
  color: var(--muted);
  line-height: 1.78;
}

.metadata {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 22px 0;
}

.metadata div,
.restore-controls,
.story-card,
.restoration-report,
.research-notes {
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.16);
}

.metadata div {
  padding: 14px;
}

.metadata dt {
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.metadata dd {
  margin: 8px 0 0;
  line-height: 1.5;
}

.restore-controls,
.story-card,
.restoration-report,
.research-notes {
  display: grid;
  gap: 14px;
  margin-top: 18px;
  padding: 16px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-title h3 {
  margin: 0;
}

.restore-controls label {
  grid-template-columns: 82px 1fr;
  align-items: center;
}

.restore-controls input {
  padding: 0;
  accent-color: var(--gold);
}

.restore-controls .check-control input {
  width: 20px;
  min-height: 20px;
  justify-self: start;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.restoration-report .section-title span,
.research-notes .section-title span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.report-metrics {
  display: grid;
  gap: 12px;
}

.metric-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  align-items: center;
}

.metric-row strong {
  display: block;
}

.metric-row span {
  color: var(--muted);
  font-size: 12px;
}

.metric-row b {
  color: var(--gold);
}

.metric-row i {
  grid-column: 1 / -1;
  height: 7px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, var(--gold) var(--value), rgba(255, 255, 255, 0.08) 0);
}

.research-notes > div:last-child {
  display: grid;
  gap: 12px;
}

.research-notes article {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.research-notes h4 {
  margin: 0 0 6px;
  color: var(--gold);
}

.research-notes p {
  margin: 0;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 10;
  max-width: min(420px, calc(100% - 36px));
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #111;
  color: var(--text);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .toolbar {
    grid-template-columns: repeat(4, minmax(150px, 1fr));
  }

  .project-intro {
    grid-template-columns: 1fr;
  }

  .search {
    grid-column: 1 / -1;
  }

  .dialog-grid {
    grid-template-columns: 1fr;
  }

  .detail-panel {
    max-height: none;
  }
}

@media (max-width: 720px) {
  .topbar,
  .gallery-head,
  .section-head,
  .section-title,
  .site-footer,
  .story-lab {
    align-items: start;
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .hero {
    min-height: 720px;
  }

  .hero__content {
    margin-top: 42px;
  }

  .hero__stats,
  .toolbar,
  .school-grid,
  .timeline-item,
  .metadata {
    grid-template-columns: 1fr;
  }

  .timeline-view::before {
    left: 18px;
  }

  .timeline-year {
    margin-left: 38px;
  }

  .wide-card {
    grid-column: auto;
  }

  .compare-stage {
    min-height: 280px;
    height: 54vh;
  }
}