/* ============================================================
   Artem Sinitsyn — portfolio
   Editorial system: ink / paper / one accent, Swiss grid,
   oversized grotesque display type.
   ============================================================ */

@font-face {
  font-family: "InterVariable";
  src: url("/assets/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #0c0c0c;
  --ink-soft: #161616;
  --paper: #f2efe9;
  --paper-dim: #e7e3da;
  --accent: #e8401c;
  --line-dark: rgba(242, 239, 233, 0.18);
  --line-light: rgba(12, 12, 12, 0.16);
  --mut-dark: rgba(242, 239, 233, 0.55);
  --mut-light: rgba(12, 12, 12, 0.55);
  --font: "InterVariable", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --track-tight: -0.045em;
}

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

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

body {
  font-family: var(--font);
  background: var(--ink);
  color: var(--paper);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, video, iframe { display: block; max-width: 100%; }
ul { list-style: none; }

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

/* ---------- type scale ---------- */
.display {
  font-weight: 660;
  letter-spacing: var(--track-tight);
  line-height: 0.92;
  text-transform: uppercase;
  font-size: clamp(3rem, 11.5vw, 10.5rem);
}
.display-2 {
  font-weight: 640;
  letter-spacing: -0.035em;
  line-height: 0.95;
  text-transform: uppercase;
  font-size: clamp(2.2rem, 7vw, 6rem);
}
.eyebrow {
  font-size: 0.72rem;
  font-weight: 560;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mut-dark);
}
.light .eyebrow { color: var(--mut-light); }
.accent { color: var(--accent); }

/* ---------- layout ---------- */
.wrap { padding-left: var(--gutter); padding-right: var(--gutter); }
section { position: relative; }
.light { background: var(--paper); color: var(--ink); }

.rule-t { border-top: 1px solid var(--line-dark); }
.light .rule-t, .light.rule-t { border-top: 1px solid var(--line-light); }

/* ---------- header ---------- */
.site-head {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.1rem var(--gutter);
  mix-blend-mode: difference;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 560;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.site-head nav { display: flex; gap: 1.75rem; }
.site-head a { opacity: 0.85; transition: opacity 0.2s; }
.site-head a:hover { opacity: 1; }
.site-head .brand { font-weight: 700; }

/* ---------- hero ---------- */
.hero {
  min-height: 92svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: 22vh;
  padding-bottom: 2.5rem;
}
.hero .meta-row {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.hero h1 { word-spacing: 0.08em; }
.hero h1 .line { display: block; }
.hero h1 .indent { padding-left: clamp(2rem, 12vw, 12rem); }
.hero-statement {
  max-width: 34em;
  margin-top: 2rem;
  font-size: clamp(1.05rem, 1.4vw, 1.35rem);
  line-height: 1.5;
  color: var(--mut-dark);
}
.hero-statement b { color: var(--paper); font-weight: 560; }

/* ---------- media frames ---------- */
.media-frame {
  position: relative;
  background: var(--ink-soft);
  overflow: hidden;
}
.media-frame::before { content: ""; display: block; padding-top: 56.25%; }
.media-frame > iframe,
.media-frame > video,
.media-frame > img,
.media-frame > .poster {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; border: 0;
}
.media-frame .tag {
  position: absolute; left: 1.1rem; bottom: 1rem; z-index: 2;
  font-size: 0.72rem; font-weight: 560; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--paper);
  display: flex; align-items: center; gap: 0.55rem;
}
.media-frame .tag::before {
  content: ""; width: 0.55rem; height: 0.55rem; background: var(--accent);
  display: inline-block;
}

.showreel { margin-top: 3.5rem; }

/* ---------- work index ---------- */
.work-index { padding-top: 4.5rem; padding-bottom: 6rem; }
.section-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 2.2rem;
}
.index-list { border-top: 1px solid var(--line-dark); }
.index-row {
  display: grid;
  grid-template-columns: 3.5rem 1fr auto auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line-dark);
  position: relative;
  transition: padding-left 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), color 0.25s;
}
.index-row:hover { padding-left: 1.25rem; color: var(--accent); }
.index-row .num { font-size: 0.8rem; font-weight: 560; color: var(--mut-dark); }
.index-row .t {
  font-size: clamp(1.4rem, 3.4vw, 2.9rem);
  font-weight: 620; letter-spacing: -0.03em; line-height: 1.02;
  text-transform: uppercase;
}
.index-row .brand-col, .index-row .year {
  font-size: 0.8rem; color: var(--mut-dark);
  letter-spacing: 0.04em; text-transform: uppercase; white-space: nowrap;
}
@media (max-width: 720px) {
  .index-row { grid-template-columns: 2.5rem 1fr auto; }
  .index-row .brand-col { display: none; }
}

/* hover preview panel (desktop) */
.preview-panel {
  position: fixed;
  z-index: 30;
  width: clamp(240px, 26vw, 420px);
  aspect-ratio: 16/10;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.25s, transform 0.25s;
  overflow: hidden;
  background: var(--ink-soft);
}
.preview-panel.on { opacity: 1; transform: scale(1); }
.preview-panel img, .preview-panel video {
  width: 100%; height: 100%; object-fit: cover;
}
@media (hover: none), (max-width: 900px) { .preview-panel { display: none; } }

/* ---------- about strip ---------- */
.about-strip { padding-top: 5rem; padding-bottom: 5rem; }
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; } }
.about-strip .lede {
  font-size: clamp(1.25rem, 2.2vw, 1.9rem);
  font-weight: 480; line-height: 1.35; letter-spacing: -0.015em;
}
.about-strip .more {
  display: inline-block; margin-top: 1.8rem;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; border-bottom: 2px solid var(--accent);
  padding-bottom: 0.2rem;
}

/* ---------- press strip ---------- */
.press-strip { padding-top: 3rem; padding-bottom: 3.5rem; }
.press-row {
  display: flex; flex-wrap: wrap; gap: 1rem 3rem;
  align-items: baseline;
  font-weight: 660; letter-spacing: -0.02em;
  font-size: clamp(1.3rem, 3vw, 2.4rem);
  text-transform: uppercase;
  color: var(--mut-light);
}

/* ---------- footer ---------- */
.site-foot { padding-top: 6rem; padding-bottom: 2rem; }
.site-foot .cta {
  margin-bottom: 4rem;
}
.site-foot .cta a { border-bottom: 4px solid var(--accent); }
.site-foot .cta a:hover { color: var(--accent); }
.foot-grid {
  display: flex; flex-wrap: wrap; gap: 1rem 3rem;
  justify-content: space-between;
  border-top: 1px solid var(--line-dark);
  padding-top: 1.2rem;
  font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--mut-dark);
}
.foot-grid a:hover { color: var(--paper); }
.foot-note { max-width: 26em; }

/* ---------- case study ---------- */
.case-hero { padding-top: 26vh; padding-bottom: 2.2rem; }
.case-hero .meta-row {
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 1rem; margin-bottom: 1.2rem;
}
.case-media { padding-bottom: 0; }
.case-body { padding-top: 4rem; padding-bottom: 5rem; }
.case-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(2rem, 5vw, 6rem);
}
@media (max-width: 820px) { .case-grid { grid-template-columns: 1fr; } }
.credits dl { display: grid; grid-template-columns: auto; gap: 1.1rem; }
.credits dt {
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mut-light); margin-bottom: 0.15rem;
}
.credits dd { font-weight: 540; }
.narrative h3 {
  font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin: 2.4rem 0 0.7rem;
}
.narrative h3:first-child { margin-top: 0; }
.narrative p { max-width: 38em; font-size: 1.05em; }
.case-press { margin-top: 3rem; }
.case-press li { border-top: 1px solid var(--line-light); }
.case-press a {
  display: flex; justify-content: space-between; gap: 2rem;
  padding: 0.9rem 0; align-items: baseline;
}
.case-press a:hover { color: var(--accent); }
.case-press .outlet { font-weight: 640; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.04em; white-space: nowrap; }
.case-press .headline { color: var(--mut-light); font-size: 0.95rem; text-align: right; }

.gallery {
  display: grid; grid-template-columns: repeat(12, 1fr);
  gap: clamp(0.6rem, 1.2vw, 1.2rem);
  padding-top: 0.5rem; padding-bottom: 4rem;
}
.gallery .media-frame { grid-column: span 6; }
.gallery .media-frame:nth-child(3n) { grid-column: span 12; }
@media (max-width: 720px) { .gallery .media-frame { grid-column: span 12 !important; } }

.next-project { padding-top: 4rem; padding-bottom: 5rem; }
.next-project a:hover .display-2 { color: var(--accent); }

/* ---------- about page ---------- */
.about-page { padding-top: 24vh; padding-bottom: 4rem; }
.bio-grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 5rem); padding-bottom: 4rem;
}
@media (max-width: 820px) { .bio-grid { grid-template-columns: 1fr; } }
.bio-grid .portrait { background: var(--paper-dim); }
.portrait-frame { position: relative; overflow: hidden; background: var(--paper-dim); }
.portrait-frame::before { content: ""; display: block; padding-top: 125%; }
.portrait-frame img, .portrait-frame .poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.bio-copy p { max-width: 40em; margin-bottom: 1.2rem; }
.skills { padding-top: 3rem; padding-bottom: 4rem; }
.skills-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2.5rem; margin-top: 2rem;
}
.skills-grid h3 {
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.8rem;
}
.skills-grid li { padding: 0.35rem 0; border-top: 1px solid var(--line-light); font-size: 0.95rem; }

/* ---------- reveal animation (only when JS is running, so content is never hidden without it) ---------- */
body.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1); }
body.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .index-row, .preview-panel { transition: none; }
}

/* ---------- placeholder poster ---------- */
.poster { display: flex; align-items: flex-end; padding: 1.2rem; background: var(--ink-soft); }