/* Yeryung Jenny Ko — portfolio
   Grid: 4 columns, 24px gutters, 24px margins (from the Figma "Website Pages" frames at 1440px).
   Type: Instrument Serif (display) + Instrument Sans (text). */

:root {
  --bg: #1c1c1b;
  --fg: #f3f2ee;
  --muted: #8c8b87;
  --line: #353533;
  --overlay: rgba(28, 28, 27, 0.85);

  --margin: 24px;
  --gutter: 24px;

  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--noise) var(--bg);
  background-attachment: fixed;
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.2;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 1px solid var(--fg); outline-offset: 4px; }
h1, h2, h3, p { margin: 0; font-weight: inherit; font-size: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

.page { padding: 0 var(--margin) 72px; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--gutter); }
.muted { color: var(--muted); }
.rule { border-top: 1px solid var(--line); }

/* Text styles */
.t-label { font: 500 15px/1.2 var(--sans); }
.t-body { font: 400 22px/1.32 var(--sans); letter-spacing: -0.01em; }
.t-serif { font-family: var(--serif); font-weight: 400; }
em, .italic { font-style: italic; }

/* Small links: the words (.w, never the arrows) get an underline and turn italic on hover.
   The current page keeps its underline. */
.text-link { white-space: nowrap; justify-self: start; }
.text-link .w { background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; padding-bottom: 1px; transition: background-size 0.35s var(--ease); }
.text-link:hover .w, a:hover > .text-link .w, .text-link:focus-visible .w { background-size: 100% 1px; font-style: italic; }
.text-link[aria-current="page"] .w { background-size: 100% 1px; }

/* ───────────── Landing ───────────── */

.landing { padding-top: 20px; overflow-x: clip; }

.hero-name {
  position: relative;
  font-family: var(--serif);
  font-size: calc((100vw - 2 * var(--margin)) / 5.7);
  line-height: 0.9;
  letter-spacing: -0.03em;
  white-space: nowrap;
  margin-left: -0.02em;
}
/* Once the canvas version is drawn, the real text stays for screen readers and selection. */
.hero-name.is-live { color: transparent; }
.hero-name canvas { position: absolute; pointer-events: none; letter-spacing: 0; }

/* Role on the left half; the four links spread evenly across columns 3–4. */
.landing-nav { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--gutter); padding-top: 64px; }
.landing-nav .role { grid-column: span 2; }

.intro { padding-top: 168px; align-items: start; }
.intro p { grid-column: 1 / span 2; }
.intro .contact { grid-column: 4; display: grid; gap: 6px; }

.work-header { display: flex; justify-content: space-between; padding: 136px 0 14px; border-bottom: 1px solid var(--line); }

.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gutter); padding-top: var(--gutter); }

.card { position: relative; display: block; }
.card-media { position: relative; aspect-ratio: 684 / 513; overflow: hidden; border-radius: 2px; background: #262625; }
.card-media img, .card-media video { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.card-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 28px;
  background: var(--overlay);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.card-top { display: flex; justify-content: space-between; gap: 16px; }
.card-details { display: grid; gap: 14px; transform: translateY(8px); transition: transform 0.45s var(--ease); }
.card-client { font: 400 clamp(40px, 4.72vw, 68px)/1 var(--serif); letter-spacing: -0.015em; }
.card-project { font: 400 22px/1.32 var(--sans); letter-spacing: -0.01em; }
.card-caption { display: none; }

@media (hover: hover) {
  .card:hover .card-overlay, .card:focus-visible .card-overlay { opacity: 1; }
  .card:hover .card-details, .card:focus-visible .card-details { transform: none; }
  .card:hover .card-media img, .card:hover .card-media video { transform: scale(1.02); }
}
.card.is-soon { cursor: default; }

/* ───────────── Footer ───────────── */

.site-footer { padding-top: 200px; align-items: start; }
.say-hello { grid-column: 1 / span 2; font: 400 clamp(56px, 7.22vw, 104px)/1 var(--serif); letter-spacing: -0.015em; }
.footer-col { display: grid; gap: 6px; }

/* ───────────── Project page ───────────── */

.project-header {
  position: sticky; top: 0; z-index: 20;
  margin: 0 calc(-1 * var(--margin));
  --head-pad-b: 18px; /* also places the Selected Work dropdown on the line below (v2.css) */
  padding: 24px var(--margin) var(--head-pad-b);
  background: var(--noise) var(--bg);
  background-attachment: fixed;
}
.project-header::after { content: ""; position: absolute; left: var(--margin); right: var(--margin); bottom: 0; border-bottom: 1px solid var(--line); }
.project-header-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.identity { display: grid; gap: 2px; white-space: nowrap; }
.project-nav { display: flex; gap: 40px; align-items: baseline; }
.project-nav a { display: flex; gap: 8px; align-items: baseline; white-space: nowrap; }
.project-nav .idx { font: 500 13px/1 var(--sans); color: var(--muted); }
.project-nav .lbl { font: 400 clamp(26px, 2.78vw, 40px)/1 var(--serif); letter-spacing: -0.01em; transition: opacity 0.2s; }
.project-nav a[aria-current="page"] .lbl { font-style: italic; }
.project-nav a:not([aria-current="page"]):hover .lbl { font-style: italic; }

.breadcrumb { display: flex; justify-content: space-between; padding: 96px 0 14px; border-bottom: 1px solid var(--line); }

.project-title { padding-top: 40px; align-items: start; }
.project-title .title-text { grid-column: 2 / span 3; }
.project-title h1 { font: 400 clamp(72px, 11.1vw, 160px)/0.92 var(--serif); letter-spacing: -0.03em; }
.project-title .campaign { margin-top: 8px; font: italic 400 clamp(28px, 3.33vw, 48px)/1.1 var(--serif); letter-spacing: -0.01em; }

.facts { margin-top: 96px; padding-top: 16px; row-gap: 24px; }
.fact { display: grid; gap: 6px; align-content: start; }
.fact .value { font: 400 18px/1.2 var(--sans); letter-spacing: -0.005em; }
/* Values with several points (Recognition, Results): one point per block, a line apart. */
.fact .value .pt { display: block; }
.fact .value .pt + .pt { margin-top: 1.2em; }

.film { margin-top: 40px; position: relative; aspect-ratio: 1392 / 781; overflow: hidden; background: #000; }
.film > img, .film > video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border: 0; }
.film.is-playing > video { object-fit: contain; }

/* Play button: a plain white arrow over the poster. */
.film-play {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: grid; place-items: center;
  background: rgba(28, 28, 27, 0.12); border: 0; padding: 0; cursor: pointer;
  color: #fff; opacity: 0.8;
  transition: opacity 0.3s var(--ease), background 0.3s var(--ease);
}
.film-play svg { width: clamp(44px, 5.6vw, 80px); height: auto; transition: transform 0.35s var(--ease); }
.film-play:hover { opacity: 1; background: rgba(28, 28, 27, 0.24); }
.film-play:hover svg { transform: scale(1.06); }

/* Slideshow: slides stacked, the active one fades in; thin bars show progress;
   arrows appear on hover (always shown on touch screens). */
.slideshow { position: relative; overflow: hidden; background: #000; }
.slideshow .slide { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 0.6s var(--ease); }
.slideshow .slide.is-active { opacity: 1; }
/* The Converse clips carry a 1px light column on their left edge from the 8K export; crop it. */
.slideshow.crop-edge .slide { left: -3px; width: calc(100% + 3px); }
.slideshow-progress { position: absolute; left: 20px; right: 20px; bottom: 20px; display: flex; gap: 6px; z-index: 2; pointer-events: none; }
.slideshow-progress span { flex: 0 1 40px; height: 2px; background: rgba(243, 242, 238, 0.3); overflow: hidden; }
.slideshow-progress span::after { content: ""; display: block; height: 100%; width: calc(var(--p, 0) * 100%); background: var(--fg); }
.slideshow-arrow {
  position: absolute; top: 0; bottom: 0; z-index: 2; width: 22%;
  display: flex; align-items: center; padding: 0 clamp(16px, 2.2vw, 32px);
  background: none; border: 0; cursor: pointer; color: #fff;
  opacity: 0; transition: opacity 0.3s var(--ease);
}
.slideshow-arrow.prev { left: 0; justify-content: flex-start; }
.slideshow-arrow.next { right: 0; justify-content: flex-end; }
.slideshow-arrow svg { width: clamp(28px, 2.8vw, 40px); height: auto; opacity: 0.8; transition: opacity 0.2s, transform 0.35s var(--ease); }
.slideshow:hover .slideshow-arrow, .slideshow-arrow:focus-visible { opacity: 1; }
.slideshow-arrow:hover svg { opacity: 1; }
.slideshow-arrow.prev:hover svg { transform: translateX(-4px); }
.slideshow-arrow.next:hover svg { transform: translateX(4px); }
@media (hover: none) { .slideshow-arrow { opacity: 1; width: 18%; } }
.gallery .slideshow { aspect-ratio: var(--w) / var(--h); }

.section { padding-top: 136px; }
.section-inner { padding-top: 16px; align-items: start; }
.section-inner + .section-inner { margin-top: 56px; }
.overview-text { grid-column: 2 / span 2; }

.gallery { padding-top: 60px; display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--gutter); }
.gallery-caption { margin-bottom: 0; }
.row { display: flex; gap: var(--gutter); }
.row > .m { flex: var(--w) 1 0; min-width: 0; aspect-ratio: var(--w) / var(--h); overflow: hidden; background: #262625; }
.row > .m img, .row > .m video, .stack > .m img, .stack > .m video { width: 100%; height: 100%; object-fit: cover; }
/* A column of media inside a row; its height follows the row. */
.row > .stack { flex: var(--w) 1 0; min-width: 0; display: flex; flex-direction: column; gap: var(--gutter); }
.stack > .m { flex: 1 1 0; min-height: 0; overflow: hidden; background: #262625; }

/* ───────────── Archive & Playground ───────────── */

.page-intro { padding-top: 96px; }
.page-intro p { grid-column: 1 / span 2; }
.study { padding-top: 60px; display: grid; gap: var(--gutter); }
.study + .study { padding-top: 120px; }
.study-label { align-items: end; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.study-label h2 { grid-column: 1 / span 2; font: 400 40px/1.1 var(--serif); letter-spacing: -0.01em; }
.study-label p { grid-column: 3 / span 2; }

.credits { padding-top: 120px; }
.credit-cols { grid-column: 2 / span 3; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--gutter); row-gap: 16px; }
.credit-col { display: grid; gap: 16px; align-content: start; }
.credit { display: grid; gap: 2px; align-content: start; }

.next { padding-top: 120px; }
.next-inner { padding-top: 16px; display: grid; gap: 16px; }
.next-label { display: flex; justify-content: space-between; }
.next-link { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; }
.next-title { font: 400 clamp(56px, 8.33vw, 120px)/1 var(--serif); letter-spacing: -0.03em; transition: letter-spacing 0.4s var(--ease); }
.next-link:hover .next-title { font-style: italic; }
.next-cta { white-space: nowrap; }

/* ───────────── Tablet ───────────── */

@media (max-width: 1023px) {
  .landing-nav { row-gap: 12px; }
  .landing-nav .role { grid-column: 1 / -1; }
  .intro { padding-top: 120px; }
  .intro p { grid-column: 1 / span 3; }
  .intro .contact { grid-column: 4; }
  .project-nav { gap: 24px; }
  .project-nav .idx { display: none; }
  .overview-text { grid-column: 2 / span 3; }
  .card-overlay { padding: 20px; }
  .card-project { font-size: 18px; }
}

/* ───────────── Phone ───────────── */

@media (max-width: 699px) {
  :root { --margin: 16px; --gutter: 16px; }
  .page { padding-bottom: 48px; }
  .t-body { font-size: 19px; }

  .landing { padding-top: 16px; }
  .landing-nav { row-gap: 12px; padding-top: 28px; }
  .landing-nav .role { grid-column: 1 / -1; }
  .intro { padding-top: 72px; row-gap: 32px; }
  .intro p, .intro .contact { grid-column: 1 / -1; }
  .intro br { display: none; }
  .work-header { padding-top: 88px; }

  .project-grid { grid-template-columns: 1fr; row-gap: 40px; }
  .card-overlay { display: none; }
  .card-caption { display: grid; gap: 6px; padding-top: 14px; }
  .card-caption .top { display: flex; justify-content: space-between; gap: 12px; }
  .card-caption .client { font: 400 34px/1 var(--serif); letter-spacing: -0.015em; }

  .site-footer { padding-top: 120px; row-gap: 32px; }
  .say-hello { grid-column: 1 / -1; }
  .site-footer .footer-col { grid-column: span 2; }

  .project-header { --head-pad-b: 12px; padding: 14px var(--margin) var(--head-pad-b); }
  .project-header-inner { flex-direction: column; align-items: stretch; gap: 12px; }
  .identity { display: flex; justify-content: space-between; }
  .project-nav { gap: 0; justify-content: space-between; }
  .project-nav .lbl { font-size: clamp(20px, 6vw, 26px); }

  .breadcrumb { padding-top: 48px; }
  .project-title { row-gap: 20px; }
  .project-title > div:first-child, .project-title .title-text { grid-column: 1 / -1; }
  .facts { margin-top: 56px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .film { margin-top: 32px; aspect-ratio: 16 / 10; }
  .film-play .btn { padding: 14px 22px 14px 18px; }

  .section { padding-top: 88px; }
  .section-inner { row-gap: 16px; }
  .section-inner + .section-inner { margin-top: 40px; }
  .overview-text { grid-column: 1 / -1; }
  .section-inner > .label { grid-column: 1 / -1; }

  .gallery { padding-top: 48px; gap: var(--gutter); }
  .row { flex-direction: column; }
  .row > .m { flex: none; width: 100%; }
  /* Rows of tall images become a swipeable strip on phones */
  .row.portrait { flex-direction: row; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--margin); margin: 0 calc(-1 * var(--margin)); padding: 0 var(--margin); scrollbar-width: none; }
  .row.portrait::-webkit-scrollbar { display: none; }
  .row.portrait > .m { flex: 0 0 72%; scroll-snap-align: start; }
  .row > .stack { flex: none; width: 100%; }
  .stack > .m { flex: none; aspect-ratio: var(--w) / var(--h); }

  .page-intro { padding-top: 48px; }
  .page-intro p { grid-column: 1 / -1; }
  .study { padding-top: 48px; }
  .study + .study { padding-top: 88px; }
  .study-label { row-gap: 8px; }
  .study-label h2 { grid-column: 1 / -1; font-size: 32px; }
  .study-label p { grid-column: 1 / -1; }

  .credits { padding-top: 88px; }
  .credit-cols { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 16px; }
  .credit-col { display: contents; }
  .next { padding-top: 88px; }
  .next-link { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}