/* Iaroslav Chenskikh — portfolio. Direction B: editorial grid. */
:root {
  --bg: #F3F1EC;
  --ink: #151513;
  --body: #3E3C37;
  --muted: #5E5B54;
  --line: #D9D5CC;
  --tile: #2A2925;
  --accent: #2340A8;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --pad: clamp(16px, 3.4vw, 48px);
  --max: 1440px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, video, iframe { display: block; max-width: 100%; }
a { color: var(--ink); }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--pad); }
.label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.serif { font-family: var(--serif); font-weight: 400; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--ink); color: var(--bg); padding: 8px 12px; z-index: 10; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: 12px 32px; padding-block: 24px;
}
.brand { font-family: var(--serif); font-size: 26px; line-height: 1; text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 24px; font-size: 15px; }
.nav a { text-decoration: none; padding: 6px 0; }
.nav a.quiet { color: var(--muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 24px; border-radius: 999px;
  background: var(--ink); color: var(--bg); text-decoration: none;
  font-weight: 500; font-size: 15px; border: 1px solid var(--ink);
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.link-arrow { display: inline-flex; align-items: center; min-height: 48px; font-weight: 500; font-size: 15px; text-underline-offset: 4px; }

/* Hero */
.hero .wrap {
  display: flex; flex-wrap: wrap; align-items: flex-end;
  gap: 48px 72px; padding-block: clamp(48px, 7vw, 96px) 64px;
}
.hero-text { flex: 999 1 560px; min-width: 0; display: flex; flex-direction: column; gap: 28px; }
.hero h1 {
  margin: 0; font-family: var(--serif); font-weight: 400;
  font-size: clamp(44px, 6.4vw, 104px); line-height: 0.98; letter-spacing: -0.015em;
}
.hero h1 em { color: var(--accent); }
.hero .lede { margin: 0; max-width: 600px; font-size: clamp(17px, 1.4vw, 19px); color: var(--body); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; }

.featured { flex: 1 1 360px; min-width: 0; max-width: 460px; margin: 0; display: flex; flex-direction: column; gap: 16px; }
.featured .media { aspect-ratio: 4 / 5; }
.featured figcaption { display: flex; flex-direction: column; gap: 6px; }
.featured .facts { font-family: var(--mono); font-size: 12px; color: var(--muted); }

/* Media tiles */
.media {
  position: relative; overflow: hidden; border-radius: 4px; background: var(--tile);
  aspect-ratio: 16 / 9;
}
.media img, .media video { width: 100%; height: 100%; object-fit: cover; }
.media .ph {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; text-align: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: #A9A59C; padding: 16px;
}
.media.nda img { filter: saturate(0.7); }
.media.nda::after {
  content: "Under NDA"; position: absolute; left: 12px; bottom: 12px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: #F3F1EC; background: rgba(21,21,19,0.7); padding: 6px 10px; border-radius: 2px;
}

/* Lite YouTube */
.yt { cursor: pointer; border: 0; padding: 0; width: 100%; }
.media .play {
  position: absolute; inset: 0; margin: auto; width: 64px; height: 64px; border-radius: 50%;
  background: rgba(21,21,19,0.75); display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.media:hover .play { background: var(--accent); }
.yt iframe { width: 100%; height: 100%; border: 0; }

/* Sections */
.section { border-top: 1px solid var(--line); }
.section > .wrap { padding-block: 48px 72px; display: flex; flex-direction: column; gap: 32px; }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 12px 32px; }
.section-head h2 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: clamp(36px, 4vw, 52px); line-height: 1.05; }
.section-head p { margin: 0; max-width: 560px; color: var(--body); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 40px 32px; }

.grid.two { grid-template-columns: repeat(auto-fill, minmax(min(100%, 440px), 1fr)); gap: 56px 40px; }

.card { display: flex; flex-direction: column; gap: 12px; }
.card h3 { margin: 0; font-size: 21px; font-weight: 500; line-height: 1.3; }
.card h3 a { text-decoration: none; }
.card p { margin: 0; font-size: 15px; color: var(--body); }
.card .credit { font-size: 14px; color: var(--ink); }
.facts-line { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.owned { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.owned li {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em;
  border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; color: var(--body);
}
.owned-label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

details.more { border-top: 1px solid var(--line); padding-top: 12px; }
details.more summary { cursor: pointer; font-weight: 500; font-size: 15px; min-height: 32px; }
details.more p { margin-top: 10px; }

/* More work list */
.list { list-style: none; margin: 0; padding: 0; }
.list li {
  display: grid; grid-template-columns: minmax(160px, 1fr) minmax(0, 3fr); gap: 8px 32px;
  border-top: 1px solid var(--line); padding: 18px 0;
}
.list li:last-child { border-bottom: 1px solid var(--line); }
.list strong { font-weight: 500; }
.list span { color: var(--body); }
.note { font-size: 15px; color: var(--muted); font-style: italic; margin: 0; }

/* Approach */
.principles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr)); gap: 32px; counter-reset: p; }
.principles div { border-top: 1px solid var(--ink); padding-top: 16px; display: flex; flex-direction: column; gap: 8px; counter-increment: p; }
.principles div::before { content: "0" counter(p); font-family: var(--mono); font-size: 12px; color: var(--muted); }
.principles h3 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 28px; line-height: 1.1; }
.principles p { margin: 0; font-size: 15px; color: var(--body); }

/* About */
.about { display: flex; flex-wrap: wrap; gap: 32px 72px; }
.about .copy { flex: 999 1 520px; min-width: 0; max-width: 720px; display: flex; flex-direction: column; gap: 18px; }
.about .copy p { margin: 0; color: var(--body); }
.about .copy p:first-child { font-family: var(--serif); font-size: clamp(26px, 2.6vw, 34px); line-height: 1.2; color: var(--ink); }
.about aside { flex: 1 1 260px; display: flex; flex-direction: column; gap: 20px; }
.about aside div { display: flex; flex-direction: column; gap: 4px; font-size: 15px; }

/* Contact */
.contact { background: var(--ink); color: var(--bg); }
.contact a { color: var(--bg); }
.contact .wrap { padding-block: 72px; display: flex; flex-direction: column; gap: 24px; }
.contact h2 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: clamp(40px, 6vw, 88px); line-height: 1; }
.contact p { margin: 0; max-width: 560px; color: #C9C6BE; }
.contact .btn { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.contact .btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.contact .btn.ghost { background: transparent; color: var(--bg); border-color: rgba(243,241,236,0.4); }
.contact .btn.ghost:hover { border-color: var(--bg); }
.site-footer { background: var(--ink); color: #A9A59C; border-top: 1px solid #2E2D29; font-size: 13px; }
.site-footer .wrap { padding-block: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }

/* Case pages */
.case-hero .wrap { padding-block: clamp(40px, 6vw, 80px) 40px; display: flex; flex-direction: column; gap: 20px; }
.case-hero h1 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: clamp(48px, 7vw, 112px); line-height: 0.95; }
.case-hero .lede { margin: 0; max-width: 760px; font-size: clamp(19px, 1.8vw, 24px); color: var(--body); }
.meta { display: flex; flex-wrap: wrap; gap: 16px 40px; padding-top: 8px; }
.meta div { display: flex; flex-direction: column; gap: 4px; font-size: 15px; }
.case-body { display: grid; grid-template-columns: minmax(0, 1fr); gap: 56px; }
.case-block { display: grid; grid-template-columns: minmax(160px, 1fr) minmax(0, 3fr); gap: 16px 48px; }
.case-block h2 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 32px; line-height: 1.1; }
.case-block .content { max-width: 760px; display: flex; flex-direction: column; gap: 14px; }
.case-block .content p { margin: 0; color: var(--body); }
.case-block ul { margin: 0; padding-left: 20px; color: var(--body); display: flex; flex-direction: column; gap: 8px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 24px; }
.stats div { border-top: 1px solid var(--ink); padding-top: 12px; }
.stats strong { display: block; font-family: var(--serif); font-weight: 400; font-size: 48px; line-height: 1; }
.stats span { font-size: 14px; color: var(--muted); }
.next-case { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.next-case a { font-family: var(--serif); font-size: clamp(32px, 4vw, 56px); text-decoration: none; }
.back { font-size: 15px; }

@media (max-width: 640px) {
  .list li, .case-block { grid-template-columns: minmax(0, 1fr); }
  .featured { max-width: none; }
  .featured .media { aspect-ratio: 4 / 5; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* A small label placed right after the name in the header sits on its own line under the name. */
.site-header .brand + .label { order: 3; flex-basis: 100%; margin-top: -4px; }

/* "What I lead" proof lines */
.principles .facts-line { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.principles p strong { color: var(--ink); font-weight: 500; }
.principles.lead { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 40px; }

.principles.lead .owned { margin-top: 2px; }
.principles.lead > div { gap: 12px; }

/* Category and project pages */
.nav a.current { color: var(--accent); }
.case-hero .note { margin: 0; max-width: 640px; }
.bullets { list-style: none; padding: 0 !important; gap: 14px !important; }
.bullets li { border-top: 1px solid var(--line); padding-top: 12px; }
.bullets strong { color: var(--ink); font-weight: 500; }
.quote { margin: 0 0 20px; padding-left: 20px; border-left: 2px solid var(--accent); }
.quote p { font-family: var(--serif); font-size: 24px; line-height: 1.3; color: var(--ink) !important; }
.quote footer { margin-top: 8px; font-size: 14px; color: var(--muted); }
.vid { margin: 0; display: flex; flex-direction: column; gap: 8px; }
.vid figcaption { font-size: 14px; color: var(--body); }
.list.watch li { grid-template-columns: minmax(0, 1fr); }
.card .link-arrow + .link-arrow { margin-top: -12px; }
.case-block .content:has(.grid) { max-width: none; }
.case-block .grid.two { grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 24px; }
.xposts .twitter-tweet { margin: 0 !important; }
.xposts { align-items: start; }