/* ————————————————————————————————
   bogomolov.space — v3 “Brutal”
   ———————————————————————————————— */

:root {
  --bg: #FFFFFF;
  --ink: #000000;
  --acid: #D9FF00;
  --bw: 4px;
  --font-display: 'Unbounded', 'Arial Black', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --pad-x: clamp(1rem, 4vw, 3.5rem);
  --bar-h: 3.5rem;
}

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

body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--acid); color: var(--ink); }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ——— Fixed top bar ——— */

.bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: var(--bar-h);
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  background: var(--bg);
  border-bottom: var(--bw) solid var(--ink);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bar-name {
  display: flex;
  align-items: center;
  padding-inline: var(--pad-x);
}

.bar-right { display: flex; align-items: stretch; }

.bar-right > * {
  display: flex;
  align-items: center;
  padding-inline: 1.4rem;
  border-left: var(--bw) solid var(--ink);
}

.bar a:hover { background: var(--ink); color: var(--bg); }
.bar .lang .active { background: var(--acid); padding: 0.2em 0.45em; }
.bar .lang a { padding: 0.2em 0.45em; }
.bar .lang a:hover { background: var(--ink); color: var(--bg); }
.bar .lang { gap: 0.3rem; }
.bar .to-contact { background: var(--acid); }
.bar .to-contact:hover { background: var(--ink); color: var(--acid); }

/* ——— Screens ——— */

.screen {
  min-height: 100svh;
  padding: calc(var(--bar-h) + 2rem) var(--pad-x) 4.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: var(--bw) solid var(--ink);
  position: relative;
}

/* chip label */
.chip {
  display: inline-block;
  width: max-content;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.45em 0.9em;
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
}

.chip.acid { background: var(--acid); color: var(--ink); }

.giant {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.95;
  letter-spacing: -0.01em;
}

.mono-note {
  font-size: clamp(0.8rem, 1.1vw, 1rem);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  max-width: 42em;
}

/* ——— 01 · Cover ——— */

.cover {
  padding-bottom: 0;
  justify-content: flex-start;
  height: 100svh;
  min-height: 560px;
}

.cover-grid {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding-block: 1rem;
}

.cover .kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}

.cover h1 {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.12;
  font-size: clamp(2.2rem, 7vw, 6.6rem);
  letter-spacing: -0.01em;
}

.cover h1 .hl {
  display: inline-block;
  background: var(--acid);
  padding: 0.04em 0.12em;
  margin-top: 0.08em;
}

.cover-photo-frame picture {
  display: block;
  width: 100%;
  height: 100%;
}

.cover-photo-frame {
  border: var(--bw) solid var(--ink);
  background: var(--acid);
  box-shadow: 12px 12px 0 var(--ink);
  aspect-ratio: 3 / 4;
  width: min(100%, calc(min(56svh, 30rem) * 3 / 4));
  justify-self: end;
  overflow: hidden;
}

.cover-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 18%;
  filter: grayscale(1) contrast(1.15) brightness(1.05);
  mix-blend-mode: multiply;
}

/* full-color snap on hover (desktop only) */
@media (hover: hover) {
  .cover-photo-frame:hover .cover-photo {
    filter: none;
    mix-blend-mode: normal;
  }
}

/* marquee */
.marquee {
  margin-inline: calc(var(--pad-x) * -1);
  background: var(--ink);
  color: var(--bg);
  overflow: hidden;
  padding-block: 0.7rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.marquee-track {
  display: flex;
  width: max-content;
  white-space: nowrap;
  animation: marquee 22s linear infinite;
}

.marquee-track span { padding-right: 2.5rem; }

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ——— Fact screens ——— */

.fact-10 .giant { font-size: clamp(6rem, 26vw, 22rem); }
.fact-10 .giant sup { font-size: 0.4em; color: var(--ink); vertical-align: 0.9em; }

.fact-top5 .giant { font-size: clamp(3.4rem, 15vw, 13rem); }

.fact-skolkovo .giant { font-size: clamp(2.4rem, 9.6vw, 9.5rem); }

.giant-sub {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(1.1rem, 3vw, 2.4rem);
  line-height: 1.1;
  margin-top: 0.6rem;
}

.giant-sub .hl { background: var(--acid); padding: 0.05em 0.2em; }

.fact .mono-note { margin-top: clamp(1.5rem, 4vh, 2.6rem); }

/* ——— Clients ——— */

.clients-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.client-rows { margin-top: clamp(1.2rem, 3vh, 2rem); }

.client-row {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 3vw, 2.5rem);
  border-top: var(--bw) solid var(--ink);
  padding: clamp(0.5rem, 1.6vh, 1.1rem) 0.4rem;
  cursor: default;
}

.client-row:last-child { border-bottom: var(--bw) solid var(--ink); }

.client-row .idx {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.client-row .name {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(1.7rem, 6.4vw, 5.2rem);
  line-height: 1.05;
}

.client-row .name.long { font-size: clamp(1.3rem, 4.4vw, 3.6rem); }

.client-row .tag {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.client-row:hover { background: var(--ink); color: var(--bg); }
.client-row:hover .name { color: var(--acid); }

/* ——— Contact ——— */

.contact-link {
  display: block;
  border: var(--bw) solid var(--ink);
  background: var(--acid);
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(2rem, 9.6vw, 9rem);
  line-height: 1;
  padding: clamp(1rem, 3vh, 2.5rem) clamp(1rem, 3vw, 2.5rem);
  transition: none;
}

.contact-link:hover { background: var(--ink); color: var(--acid); }

.contact-rows {
  margin-top: clamp(1.5rem, 4vh, 2.5rem);
  display: flex;
  flex-wrap: wrap;
}

.contact-rows a, .contact-rows span {
  font-size: clamp(0.8rem, 1.1vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: var(--bw) solid var(--ink);
  padding: 0.8em 1.2em;
  margin: 0 -4px -4px 0; /* collapse double borders */
}

.contact-rows a:hover { background: var(--ink); color: var(--bg); }

.contact .footer {
  margin-top: clamp(3rem, 8vh, 5rem);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ——— Fixed screen counter ——— */

.screen-index {
  position: fixed;
  bottom: 0; right: 0;
  z-index: 50;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 0.6em 1em;
  font-variant-numeric: tabular-nums;
}

.screen-index b { color: var(--acid); font-weight: 700; }

/* ——— Responsive ——— */

@media (max-width: 820px) {
  .cover-grid { grid-template-columns: 1fr; align-items: start; }
  .cover-photo-frame { width: min(15rem, 60vw); box-shadow: 8px 8px 0 var(--ink); justify-self: start; order: -1; margin-bottom: 1.5rem; }
  .cover h1 { font-size: clamp(1.9rem, 9vw, 6.6rem); }
  .bar-name { display: none; }
  .bar-right { flex: 1; justify-content: flex-end; }
  .client-row .tag { display: none; }
  .contact-rows { flex-direction: column; }
  .contact-rows a, .contact-rows span { width: max-content; }
  .contact .footer { flex-direction: column; gap: 0.4rem; }
}

/* ——— Motion accessibility ——— */

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}