/* jinyaolin.info — ink / xuan-paper system
   paper #F2F0EA · ink #211E19 · seal red #B3271E
   display: Shippori Mincho · body: IBM Plex Sans · meta: IBM Plex Mono */

@font-face { font-family: 'Shippori Mincho'; font-weight: 500; font-style: normal; font-display: swap;
  src: url('/assets/fonts/shippori-mincho-500.woff2') format('woff2'); }
@font-face { font-family: 'Shippori Mincho'; font-weight: 600; font-style: normal; font-display: swap;
  src: url('/assets/fonts/shippori-mincho-600.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-weight: 400; font-style: normal; font-display: swap;
  src: url('/assets/fonts/plex-sans-400.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-weight: 500; font-style: normal; font-display: swap;
  src: url('/assets/fonts/plex-sans-500.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 400; font-style: normal; font-display: swap;
  src: url('/assets/fonts/plex-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 500; font-style: normal; font-display: swap;
  src: url('/assets/fonts/plex-mono-500.woff2') format('woff2'); }

:root {
  --paper: #F2F0EA;
  --wash:  #E9E6DD;
  --line:  #D9D4C7;
  --ink:   #211E19;
  --ink-soft: #6E675C;
  --seal:  #B3271E;
  --display: 'Shippori Mincho', 'Songti TC', 'Noto Serif TC', serif;
  --body: 'IBM Plex Sans', 'Helvetica Neue', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --measure: 34rem;
  --wide: 72rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration-color: color-mix(in srgb, var(--seal) 55%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--seal); }
:focus-visible { outline: 2px solid var(--seal); outline-offset: 3px; border-radius: 1px; }

img { max-width: 100%; height: auto; display: block; }

/* ---------- header ---------- */

.site-head {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.6rem 1.5rem 1.2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 0.8rem; text-decoration: none; margin-right: auto; }
.brand:hover { color: inherit; }
.brand img.seal { width: 2.4rem; height: 2.4rem; }
.brand .name { font-family: var(--display); font-weight: 600; font-size: 1.35rem; letter-spacing: 0.02em; line-height: 1.15; }
.brand .role { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); }

.site-nav { display: flex; flex-wrap: wrap; gap: 0.1rem 1.15rem; align-items: baseline; }
.site-nav a {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.13em; text-transform: uppercase;
  text-decoration: none; color: var(--ink-soft); padding: 0.2rem 0;
}
.site-nav a:hover { color: var(--seal); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--seal); }
.site-nav .nav-sep { color: var(--line); user-select: none; font-family: var(--mono); font-size: 0.72rem; }

/* ---------- footer ---------- */

.site-foot {
  max-width: var(--wide);
  margin: 5rem auto 0;
  padding: 1.6rem 1.5rem 2.6rem;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 0.6rem 2rem;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.site-foot a { text-decoration: none; }
.site-foot .spacer { flex: 1; }

/* ---------- shared page scaffolding ---------- */

main { max-width: var(--wide); margin: 0 auto; padding: 0 1.5rem; }

.eyebrow {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--seal);
  margin-bottom: 0.9rem;
}

h1.page-title, h2.page-title {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  line-height: 1.12; letter-spacing: 0.01em;
}

.prose { max-width: var(--measure); }
.prose p { margin-bottom: 1.15rem; }
.prose p:last-child { margin-bottom: 0; }

.section-label {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-soft);
  display: flex; align-items: center; gap: 1rem;
  margin: 4rem 0 1.6rem;
}
.section-label::after { content: ''; height: 1px; background: var(--line); flex: 1; }

/* ---------- hero (Metaphysics / qi canvas) ---------- */

.qi-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.qi-hero canvas { display: block; width: 100%; height: 46vh; min-height: 320px; max-height: 520px; }
.qi-hero .hero-text {
  position: absolute; inset: 0;
  max-width: var(--wide); margin: 0 auto; padding: 0 1.5rem;
  display: flex; flex-direction: column; justify-content: center;
  pointer-events: none;
}
.qi-hero h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.05;
}
.qi-hero .hero-sub { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-soft); margin-top: 0.9rem; }

.page-top { padding-top: 3.2rem; }

/* ---------- key controls ---------- */

.keys { list-style: none; max-width: var(--measure); border: 1px solid var(--line); background: var(--wash); padding: 1rem 1.2rem; }
.keys li { display: flex; gap: 0.9rem; align-items: baseline; font-size: 0.92rem; padding: 0.28rem 0; }
.keys kbd {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  border: 1px solid var(--ink-soft); border-bottom-width: 2px; border-radius: 3px;
  padding: 0.05rem 0.45rem; background: var(--paper); min-width: 1.7rem; text-align: center;
}

/* ---------- galleries ---------- */

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1.4rem 1.2rem; }
.gallery.wide-cells { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.gallery figure { margin: 0; }
.gallery a.zoom { display: block; text-decoration: none; }
.gallery img { width: 100%; background: var(--wash); }
.gallery a.zoom:hover img { opacity: 0.92; }
.gallery figcaption {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-soft); margin-top: 0.5rem;
}

.feature-img { margin: 2.6rem 0; }
.feature-img img { width: 100%; }
.feature-img figcaption { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); margin-top: 0.5rem; }

/* ---------- lightbox ---------- */

dialog.lightbox { border: none; background: rgba(24, 21, 17, 0.94); max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; padding: 2.2rem; }
dialog.lightbox::backdrop { background: rgba(24, 21, 17, 0.94); }
dialog.lightbox img { width: 100%; height: 100%; object-fit: contain; }
dialog.lightbox .lb-caption { position: absolute; left: 0; right: 0; bottom: 0.7rem; text-align: center; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: #B7B0A4; }
dialog.lightbox button.lb-close { position: absolute; top: 0.9rem; right: 1.1rem; background: none; border: none; color: #E9E6DD; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.1em; cursor: pointer; padding: 0.4rem; }
dialog.lightbox button.lb-close:hover { color: #fff; }

/* ---------- project cards (released) ---------- */

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2.6rem 1.6rem; }
.card .thumb { display: block; }
.card .thumb img { width: 100%; background: var(--wash); }
.card h3 { font-family: var(--display); font-weight: 600; font-size: 1.35rem; margin-top: 1rem; line-height: 1.25; }
.card h3 a { text-decoration: none; }
.card .meta { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.07em; color: var(--ink-soft); margin-top: 0.4rem; line-height: 1.9; }
.card .visit { font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.13em; text-transform: uppercase; display: inline-block; margin-top: 0.55rem; }

/* ---------- home (genart tiles) ---------- */

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 1.6rem; margin-top: 2.4rem; }
.tile { position: relative; display: block; text-decoration: none; }
.tile img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: var(--wash); }
.tile .tile-label { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-top: 0.8rem; }
.tile .tile-label strong { font-family: var(--display); font-weight: 600; font-size: 1.3rem; }
.tile .tile-label span { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); text-align: right; }
.tile:hover .tile-label strong { color: var(--seal); }

/* ---------- videos ---------- */

.video-item { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 2rem 2.6rem; margin-bottom: 4.2rem; align-items: start; }
.video-item .frame { position: relative; aspect-ratio: 16 / 9; background: var(--ink); }
.video-item iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-item h2 { font-family: var(--display); font-weight: 600; font-size: 1.7rem; line-height: 1.2; }
.video-item .medium { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--seal); margin: 0.4rem 0 0.9rem; }
.video-item .credits { font-family: var(--mono); font-size: 0.76rem; color: var(--ink-soft); line-height: 1.85; margin-bottom: 1rem; }
.video-item .desc { font-size: 0.98rem; }

/* ---------- publications ---------- */

.pub-list { list-style: none; max-width: 46rem; }
.pub-list li { padding: 1.35rem 0; border-bottom: 1px solid var(--line); }
.pub-list li:first-child { border-top: 1px solid var(--line); }
.pub-list .pub-title { font-family: var(--display); font-weight: 600; font-size: 1.18rem; line-height: 1.4; }
.pub-list .pub-venue { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.05em; color: var(--ink-soft); margin-top: 0.35rem; line-height: 1.8; }
.pub-list .pub-authors { font-size: 0.9rem; color: var(--ink-soft); margin-top: 0.2rem; }

/* ---------- CV ---------- */

.cv-block { max-width: 46rem; }
.cv-list { list-style: none; }
.cv-list li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1.4rem; padding: 0.5rem 0; }
.cv-list .yr { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.05em; color: var(--seal); padding-top: 0.22rem; white-space: nowrap; }
.cv-list .what strong { font-weight: 500; }
.cv-list .what .note { color: var(--ink-soft); font-size: 0.92rem; }
.cv-works li { padding: 0.32rem 0; }
.cv-works .what { font-size: 0.98rem; }
.degree-line { font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); margin-top: 1rem; }

/* ---------- release info table ---------- */

.release-info { max-width: var(--measure); border: 1px solid var(--line); background: var(--wash); }
.release-info div { display: grid; grid-template-columns: 9rem 1fr; gap: 1rem; padding: 0.6rem 1.1rem; border-bottom: 1px solid var(--line); }
.release-info div:last-child { border-bottom: none; }
.release-info dt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-soft); padding-top: 0.25rem; }
.release-info dd { font-size: 0.95rem; }

/* ---------- about / contact ---------- */

.banner { margin: 0 -1.5rem; }
.banner img { width: 100%; max-height: 46vh; object-fit: cover; object-position: center 35%; }

.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 2.6rem; align-items: start; }
.split .portrait img { width: 100%; background: var(--wash); }

.contact-lines { list-style: none; margin-top: 1.6rem; }
.contact-lines li { display: grid; grid-template-columns: 5.5rem 1fr; gap: 1.2rem; padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
.contact-lines li:first-child { border-top: 1px solid var(--line); }
.contact-lines .k { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-soft); padding-top: 0.3rem; }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .video-item { grid-template-columns: 1fr; gap: 1.1rem; margin-bottom: 3.4rem; }
  .split { grid-template-columns: 1fr; }
  .split .portrait { max-width: 22rem; }
}
@media (max-width: 640px) {
  body { font-size: 1rem; }
  .site-head { padding-top: 1.2rem; }
  .cv-list li { grid-template-columns: 5.2rem 1fr; gap: 0.9rem; }
  dialog.lightbox { padding: 1rem 0.5rem 2.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}