:root {
  --paper: #f4f2ed;
  --paper-deep: #e9e5dc;
  --ink: #203541;
  --mist: #9eafb4;
  --water: #6f8e9d;
  --gold: #c6974c;
  --rule: rgba(32, 53, 65, 0.2);
  --display: "Ma Shan Zheng", "Noto Serif SC", cursive;
  --serif: "Noto Serif SC", Georgia, serif;
  --mono: "DM Mono", "Noto Sans Mono CJK SC", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
}

button, a { font: inherit; }
button { cursor: pointer; }

.grain {
  position: fixed;
  z-index: 5;
  inset: 0;
  pointer-events: none;
  opacity: 0.3;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: -5rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  color: var(--paper);
  background: var(--ink);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 1rem; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 3rem, 1440px);
  margin: 0 auto;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-decoration: none;
}

.wordmark-mark {
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50%;
  font-family: var(--display);
  font-size: 1.15rem;
  letter-spacing: 0;
}

.archive-count, .eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(0.62rem, 0.8vw, 0.73rem);
  letter-spacing: 0.08em;
  line-height: 1.5;
}

.intro {
  display: grid;
  grid-template-columns: minmax(19rem, 0.85fr) minmax(28rem, 1.45fr);
  align-items: stretch;
  min-height: min(760px, calc(100vh - 74px));
  width: min(100% - 3rem, 1440px);
  margin: 0 auto;
  border-bottom: 1px solid var(--rule);
}

.intro-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 7rem 3vw 7rem 0;
}

.intro h1 {
  margin: 1.6rem 0 2rem;
  font-family: var(--display);
  font-size: clamp(4.1rem, 7.6vw, 8.7rem);
  font-weight: 400;
  line-height: 0.91;
  letter-spacing: -0.06em;
}

.intro-note {
  max-width: 20rem;
  margin: 0 0 2.5rem;
  color: color-mix(in srgb, var(--ink) 73%, transparent);
  font-size: 0.95rem;
  line-height: 2;
}

.enter-link {
  display: inline-flex;
  gap: 1.1rem;
  align-items: center;
  padding-bottom: 0.5rem;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
}
.enter-link span { font-family: var(--mono); font-size: 1rem; }

.hero-art {
  position: relative;
  min-height: 32rem;
  overflow: hidden;
  background: linear-gradient(154deg, #dfe5e3 5%, #bdcbd0 46%, #7895a3 100%);
}
.hero-art::before,
.hero-art::after {
  position: absolute;
  content: "";
  opacity: 0.78;
  filter: blur(2px);
}
.hero-art::before {
  right: -11%; bottom: -12%; left: 16%; height: 70%;
  border-radius: 58% 42% 0 0 / 79% 57% 0 0;
  background: #496d80;
  transform: rotate(-8deg);
}
.hero-art::after {
  right: -8%; bottom: -20%; left: -28%; height: 53%;
  border-radius: 70% 70% 0 0;
  background: #d9e0dd;
  transform: rotate(10deg);
}

.sun {
  position: absolute;
  z-index: 1;
  top: 23%; left: 58%;
  width: clamp(3.4rem, 7vw, 6rem);
  height: clamp(3.4rem, 7vw, 6rem);
  border-radius: 50%;
  background: #e9c47d;
  box-shadow: 0 0 0 12px rgba(233, 196, 125, 0.09), 0 0 80px 12px rgba(251, 232, 180, 0.66);
}
.contour { position: absolute; z-index: 2; border: 1px solid rgba(244, 242, 237, 0.56); border-radius: 50%; }
.contour-one { right: -15%; bottom: -25%; width: 80%; height: 75%; transform: rotate(-20deg); }
.contour-two { right: -9%; bottom: -17%; width: 65%; height: 59%; transform: rotate(-20deg); }
.contour-three { right: -1%; bottom: -11%; width: 48%; height: 42%; transform: rotate(-20deg); }
.hero-caption {
  position: absolute;
  z-index: 3;
  right: 1.6rem; bottom: 1.5rem;
  color: rgba(244, 242, 237, 0.86);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  line-height: 1.9;
  text-align: right;
}

.archive {
  display: grid;
  grid-template-columns: minmax(8.5rem, 1fr) minmax(0, 4.6fr);
  width: min(100% - 3rem, 1440px);
  margin: 0 auto;
  padding: clamp(5rem, 11vw, 11rem) 0;
}

.timeline { padding-right: 2rem; }
.timeline-group { position: sticky; top: 2rem; }
.timeline-label { margin: 0 0 1.1rem; color: color-mix(in srgb, var(--ink) 68%, transparent); }
.timeline-list { display: grid; gap: 0.55rem; }
.timeline-date { color: var(--mist); font-family: var(--display); font-size: clamp(2.2rem, 3.3vw, 3.6rem); line-height: 0.9; text-decoration: none; transition: color 0.2s ease; }
.timeline-date:hover, .timeline-date:focus-visible { color: var(--ink); }
.timeline-date span { display: block; margin-top: 0.45rem; font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.08em; }
.timeline-line { width: 1px; height: clamp(4rem, 9vw, 7rem); margin-top: 1.5rem; background: linear-gradient(var(--ink), transparent); }

.archive-list { display: grid; gap: clamp(5rem, 12vw, 10rem); }
.date-section { scroll-margin-top: 2rem; }
.date-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1.35rem; padding-bottom: 0.7rem; border-bottom: 1px solid var(--rule); }
.date-heading h2 { margin: 0; font-size: 1rem; font-weight: 500; letter-spacing: 0.08em; }
.date-heading p { margin: 0; color: color-mix(in srgb, var(--ink) 60%, transparent); }
.works-grid { display: flex; flex-wrap: wrap; gap: clamp(0.7rem, 1.5vw, 1.45rem); align-items: flex-start; }
.artwork { width: calc((100% - 2 * clamp(0.7rem, 1.5vw, 1.45rem)) / 3); margin: 0; }
.artwork-button { position: relative; display: block; width: 100%; padding: 0; overflow: hidden; border: 0; background: #d8ddda; }
.artwork-button::after {
  position: absolute; inset: 0; content: "";
  opacity: 0; background: rgba(32, 53, 65, 0.19);
  transition: opacity 0.32s ease;
}
.artwork-button:hover::after, .artwork-button:focus-visible::after { opacity: 1; }
.artwork-image { display: block; width: 100%; height: var(--artwork-height, 18rem); object-fit: contain; transition: transform 0.7s cubic-bezier(.2,.7,.2,1); }
.artwork-button:hover .artwork-image, .artwork-button:focus-visible .artwork-image { transform: scale(1.035); }
.artwork-meta { display: flex; justify-content: space-between; gap: 1rem; padding-top: 0.55rem; color: color-mix(in srgb, var(--ink) 68%, transparent); font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.04em; }

.empty-state { max-width: 30rem; margin: 0; font-size: 1rem; line-height: 1.9; }

.site-footer { display: flex; justify-content: space-between; width: min(100% - 3rem, 1440px); margin: 0 auto; padding: 1.35rem 0 2rem; border-top: 1px solid var(--rule); color: color-mix(in srgb, var(--ink) 67%, transparent); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.06em; }
.site-footer p { margin: 0; }

.lightbox { width: min(94vw, 1200px); max-width: none; max-height: 94vh; padding: 0; overflow: hidden; color: var(--paper); border: 0; background: #172a33; box-shadow: 0 1.5rem 5rem rgba(11, 26, 35, 0.4); }
.lightbox::backdrop { background: rgba(20, 32, 37, 0.84); backdrop-filter: blur(5px); }
.lightbox figure { display: grid; grid-template-rows: minmax(0, 1fr) auto; height: min(94vh, 900px); margin: 0; }
.lightbox img { display: block; width: 100%; height: 100%; min-height: 0; object-fit: contain; }
.lightbox figcaption { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 1rem 4.4rem 1.2rem 1.25rem; }
.lightbox h2 { margin: 0; font-family: var(--serif); font-size: 0.88rem; font-weight: 400; }
.close-button, .lightbox-nav { position: absolute; z-index: 2; display: grid; width: 2.8rem; height: 2.8rem; place-items: center; padding: 0; color: var(--paper); border: 1px solid rgba(244,242,237,0.35); border-radius: 50%; background: rgba(23,42,51,0.25); font-family: var(--mono); }
.close-button { top: 1rem; right: 1rem; font-size: 1.6rem; line-height: 1; }
.lightbox-nav { top: calc(50% - 1.4rem); font-size: 1.2rem; }
.previous { left: 1rem; } .next { right: 1rem; }
.close-button:hover, .lightbox-nav:hover, .close-button:focus-visible, .lightbox-nav:focus-visible { color: var(--ink); background: var(--paper); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }

@media (max-width: 720px) {
  .site-header, .intro, .archive, .site-footer { width: min(100% - 2rem, 1440px); }
  .site-header { padding: 1rem 0; }
  .archive-count { font-size: 0.57rem; }
  .intro { display: flex; flex-direction: column; min-height: unset; }
  .intro-copy { min-height: 68vh; padding: 4.5rem 0 4rem; }
  .intro h1 { font-size: clamp(3.7rem, 17.4vw, 6rem); }
  .hero-art { min-height: 20rem; margin: 0 -1rem; }
  .archive { display: block; padding: 4.5rem 0 6rem; }
  .timeline { padding: 0 0 2.5rem; }
  .timeline-group { position: static; display: flex; align-items: end; gap: 1rem; }
  .timeline-label { display: none; }
  .timeline-list { display: flex; flex-wrap: wrap; gap: 1rem; }
  .timeline-date { font-size: 2.3rem; }
  .timeline-date span { margin: 0.35rem 0 0.25rem; }
  .timeline-line { display: none; }
  .archive-list { gap: 5rem; }
  .works-grid { gap: 0.8rem; }
  .artwork { width: calc((100% - 0.8rem) / 2); }
  .artwork-image { height: var(--artwork-height, 9rem); }
  .artwork-meta { font-size: 0.56rem; }
  .site-footer { display: block; padding: 1.25rem 0 1.5rem; line-height: 1.9; }
  .lightbox { width: 100vw; max-height: 100vh; }
  .lightbox figure { height: 100vh; }
  .lightbox figcaption { padding-right: 1rem; }
  .lightbox-nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}