/* ---------------------------------------------------------
   Vladimir Zhukovskiy — portfolio
   Swiss neutral: pure white, hairline grid, tight sans-serif.
--------------------------------------------------------- */

:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #767676;
  --muted-2: #a3a3a3;
  --line: #e3e3e3;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Helvetica Neue", Helvetica, Arial, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* ---------- Header ---------- */
.site-header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 24px;
  border-bottom: 1px solid var(--line);
}

.site-brand {
  display: flex;
  align-items: baseline;
  gap: 8px 16px;
  flex-wrap: wrap;
  margin-left: auto;
}

.site-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.site-subtitle {
  font-size: 11px;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.site-nav {
  position: relative;
  display: flex;
  gap: 12px 22px;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding-bottom: 4px;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--fg);
}

.nav-indicator {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  background: var(--fg);
  opacity: 0;
  transition: transform .25s ease, width .25s ease, opacity .2s ease;
  pointer-events: none;
}

/* ---------- Main ---------- */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 96px;
}

/* ---------- Video wall (text-free, homepage) ---------- */
.video-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 40px 0 24px;
}

.video-wall .video-card {
  background: var(--bg);
  opacity: 0;
  transform: translateY(-14px);
  animation: video-fade-in .5s ease forwards;
  animation-delay: var(--fade-delay, 0s);
}

@keyframes video-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .video-wall .video-card {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

.video-wall .video-placeholder {
  aspect-ratio: 1 / 1;
  background: #fafafa;
}

.video-wall .video-card:hover .video-placeholder {
  background: #f1f1f1;
}

.video-wall .video-card:hover .play-icon {
  opacity: 1;
}

@media (max-width: 900px) {
  .video-wall { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .video-wall { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Work grid (hairline) ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.work-tile {
  display: block;
  background: var(--bg);
}

.work-tile-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #fafafa;
}

.work-tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.02);
  transition: transform .5s ease, filter .5s ease;
}

.work-tile:hover .work-tile-media img {
  transform: scale(1.03);
  filter: grayscale(0%) contrast(1);
}

.work-tile-caption {
  padding: 16px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--line);
}

.work-tile-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.005em;
}

.work-tile-blurb {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- Placeholder tiles ---------- */
.placeholder-tile {
  width: 100%;
  height: 100%;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  background: repeating-linear-gradient(
    135deg, #fafafa, #fafafa 10px, #f1f1f1 10px, #f1f1f1 20px
  );
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- Project page ---------- */
.back-link {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 32px;
}
.back-link:hover { color: var(--fg); }

.project h1 {
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 700;
  margin: 0 0 28px;
  letter-spacing: -0.015em;
}

.project-copy {
  max-width: 680px;
  margin-bottom: 48px;
}

.project-copy p {
  color: #333;
  font-size: 15px;
  margin: 0 0 16px;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 32px;
  margin: 0 0 1px;
}

/* ---------- Video grid (hairline) ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 20px 0 16px;
}

.video-card {
  cursor: pointer;
  background: var(--bg);
}

.video-placeholder {
  aspect-ratio: 16 / 9;
  background: #fafafa;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: background .2s ease;
}

.video-card:hover .video-placeholder {
  background: #f1f1f1;
}

.play-icon {
  font-size: 20px;
  color: var(--fg);
  opacity: 0.8;
  transform: translateX(2px);
}

.video-card-title {
  margin: 0;
  padding: 12px 16px 16px;
  font-size: 13px;
  color: #333;
  border-top: 1px solid var(--line);
}

.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}
.video-embed iframe,
.video-embed video {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Image grid (hairline) ---------- */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.image-tile {
  background: #fafafa;
  overflow: hidden;
}

.image-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Profile ---------- */
.profile-page {
  padding-top: 56px;
  max-width: 760px;
}

.profile-page h1 {
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  margin: 0 0 40px;
  letter-spacing: -0.015em;
}

.profile-block {
  margin-bottom: 40px;
}

.profile-intro {
  max-width: 640px;
}

.profile-lede {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}

.profile-intro p {
  font-size: 15px;
  color: #333;
  margin: 0 0 16px;
}

.profile-intro p:last-child {
  margin-bottom: 0;
}

.profile-block .section-label {
  margin-bottom: 24px;
}

.profile-resume-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--fg);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: background .15s ease, color .15s ease;
}

.profile-resume-link:hover {
  background: var(--fg);
  color: var(--bg);
}

.profile-resume-link .arrow {
  transition: transform .15s ease;
}

.profile-resume-link:hover .arrow {
  transform: translateX(3px);
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.profile-stat {
  background: var(--bg);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.profile-stat-num {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.profile-stat-label {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.4;
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.profile-tags span {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 7px 12px;
  border: 1px solid var(--line);
  color: #333;
}

@media (max-width: 600px) {
  .profile-stats { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 24px 64px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.footer-note {
  font-size: 11px;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .work-grid { grid-template-columns: 1fr; }
  .site-brand { margin-left: 0; }
}