/* ============================================================
   KVANT Capital — design tokens + components (dark only)
   ============================================================ */
:root {
  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.85rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(2.4rem, 1rem + 5.2vw, 5.75rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Colors — deep space with quantum-cyan accent */
  --color-bg: #05060a;
  --color-bg-2: #080a11;
  --color-surface: rgba(255, 255, 255, 0.03);
  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.18);

  --color-text: #f2f4f9;
  --color-text-muted: #c3c9d6;   /* raised for AA over bright shader areas */
  --color-text-faint: #8b93a6;   /* raised from #5b6272 */

  --color-primary: #5eead4;      /* aqua/teal glow */
  --color-primary-2: #7dd3fc;    /* soft cyan-blue */
  --color-primary-deep: #2dd4bf;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --content: 1160px;

  --font-display: 'Clash Display', 'Georgia', serif;
  --font-body: 'General Sans', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

/* ---------- Background layers ---------- */
#bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  display: block;
}
.vignette {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 0%, transparent 32%, rgba(5, 6, 10, 0.68) 100%),
    radial-gradient(90% 70% at 50% 110%, rgba(5, 6, 10, 0.92) 0%, transparent 60%),
    linear-gradient(180deg, rgba(5,6,10,0.28) 0%, rgba(5,6,10,0.12) 40%, rgba(5,6,10,0.42) 100%);
}
.grain {
  position: fixed;
  inset: -10%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.08;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px;
  animation: grainShift 6s steps(4) infinite;
}
@keyframes grainShift {
  0% { transform: translate(0,0); }
  25% { transform: translate(-4%, 2%); }
  50% { transform: translate(3%, -3%); }
  75% { transform: translate(-2%, 3%); }
  100% { transform: translate(0,0); }
}
@media (prefers-reduced-motion: reduce) {
  .grain { animation: none; }
}

/* ---------- Layout ---------- */
.section {
  position: relative;
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: clamp(var(--space-20), 12vw, var(--space-32));
}
/* text-legibility scrim for text-heavy sections */
.approach > .section-head,
.approach > .section-lede,
.contact > .section-head,
.contact > .section-lede,
.contact > .contact-mail,
.teaser-inner {
  position: relative;
  isolation: isolate;
}
.approach > .section-head::before,
.approach > .section-lede::before,
.contact > .section-head::before,
.contact > .section-lede::before,
.teaser-inner::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -22% -8%;
  background: radial-gradient(120% 130% at 30% 50%, rgba(5,6,10,0.58) 0%, rgba(5,6,10,0.30) 55%, transparent 82%);
  filter: blur(8px);
  pointer-events: none;
}
.teaser-inner::before {
  inset: -14% -12%;
  background: radial-gradient(110% 110% at 50% 50%, rgba(5,6,10,0.62) 0%, rgba(5,6,10,0.30) 55%, transparent 80%);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) clamp(var(--space-5), 4vw, var(--space-12));
  transition: background 300ms ease, backdrop-filter 300ms ease, border-color 300ms ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: color-mix(in oklab, var(--color-bg) 72%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--color-border);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}
.brand-mark {
  color: var(--color-primary);
  display: inline-flex;
  filter: drop-shadow(0 0 10px color-mix(in oklab, var(--color-primary) 45%, transparent));
}
.brand-mark svg {
  width: 34px;
  height: 34px;
}
.brand-word {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: 0.06em;
  line-height: 1;
}
.brand-sub {
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.14em;
}
.header-cta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}
.header-cta:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
  transform: translateY(-1px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--content);
  margin-inline: auto;
  padding: var(--space-24) clamp(var(--space-6), 4vw, var(--space-12)) var(--space-16);
}
.hero-inner {
  width: min(100%, 980px);
  max-width: none;
  position: relative;
}
/* localized scrim behind text over the shader */
.hero-inner::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -8% -14% -12% -8%;
  background: radial-gradient(115% 105% at 24% 42%, rgba(5,6,10,0.62) 0%, rgba(5,6,10,0.34) 45%, transparent 78%);
  filter: blur(6px);
  pointer-events: none;
}
.eyebrow {
  font-size: var(--text-xs);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-hero);
  line-height: 1.0;
  letter-spacing: -0.01em;
  color: var(--color-text);
  width: min(100%, 980px);
  max-width: 15ch;
}
.hero-title .line {
  display: block;
  width: max-content;
  max-width: 100%;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--color-primary), var(--color-primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede {
  margin-top: var(--space-6);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  width: min(46ch, 90vw);
  max-width: none;
  line-height: 1.55;
}
.hero-actions {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  width: max-content;
  max-width: min(92vw, 640px);
}
.hero-actions .btn { white-space: nowrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  border: 1px solid transparent;
  min-height: 48px;
}
.btn-primary {
  background: linear-gradient(100deg, var(--color-primary), var(--color-primary-deep));
  color: #04120f;
  font-weight: 600;
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--color-primary) 40%, transparent);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px color-mix(in oklab, var(--color-primary) 30%, transparent);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-ghost {
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: clamp(var(--space-6), 4vw, var(--space-12));
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}
.scroll-line {
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: var(--color-primary);
  animation: scan 2.4s ease-in-out infinite;
}
@keyframes scan {
  0% { transform: translateX(-100%); opacity: 0; }
  40% { opacity: 1; }
  100% { transform: translateX(250%); opacity: 0; }
}

/* ---------- Section heads ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
.section-index {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-primary);
  letter-spacing: 0.2em;
  font-variant-numeric: tabular-nums;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  letter-spacing: -0.01em;
  line-height: 1.02;
}
.section-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 56ch;
  line-height: 1.55;
}

/* ---------- Approach / pillars ---------- */
.pillars {
  margin-top: var(--space-16);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.pillar {
  position: relative;
  padding: var(--space-8) var(--space-6) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
  overflow: hidden;
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), background var(--transition-interactive);
}
.pillar::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-interactive);
}
.pillar:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  background: linear-gradient(180deg, rgba(94,234,212,0.06), rgba(255,255,255,0.01));
}
.pillar:hover::before { opacity: 1; }
.pillar-num {
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}
.pillar h3 {
  margin-top: var(--space-5);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.pillar p {
  margin-top: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ---------- Teaser ---------- */
.teaser {
  text-align: center;
}
.teaser-inner {
  position: relative;
  max-width: 40ch;
  margin-inline: auto;
  padding-block: var(--space-12);
}
.teaser .section-index {
  display: block;
  margin-bottom: var(--space-6);
}
.teaser-kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-inline: auto;
}
.teaser-line {
  margin: var(--space-6) auto 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-xl);
  line-height: 1.2;
  color: var(--color-text);
  max-width: 24ch;
}
.teaser-sub {
  margin-top: var(--space-8);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: 0.08em;
  background: linear-gradient(100deg, var(--color-primary), var(--color-primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.teaser-pulse {
  display: block;
  width: 8px;
  height: 8px;
  margin: var(--space-8) auto 0;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--color-primary) 60%, transparent);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--color-primary) 55%, transparent); }
  70% { box-shadow: 0 0 0 18px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- Contact ---------- */
.contact {
  text-align: left;
}
.contact-mail {
  display: inline-block;
  margin-top: var(--space-10);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.75rem, 1rem + 4vw, 4rem);
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-decoration: none;
  line-height: 1.05;
  background: linear-gradient(100deg, var(--color-text) 0%, var(--color-text) 100%);
  background-size: 0% 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: color var(--transition-interactive), background-size 400ms var(--ease-out);
}
.contact-mail:hover {
  color: var(--color-primary);
  background-image: linear-gradient(90deg, var(--color-primary), var(--color-primary-2));
  background-size: 100% 2px;
}

/* ---------- Footer ---------- */
.site-footer {
  max-width: var(--content);
  margin-inline: auto;
  padding: var(--space-10) var(--space-6) var(--space-16);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-faint);
}
.footer-mark { color: var(--color-text-faint); display: inline-flex; }
.footer-copy {
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .pillars {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .hero-inner { max-width: 100%; }
}
@media (max-width: 560px) {
  .header-cta { display: none; }
  .hero { padding-top: var(--space-20); }
  .hero-actions .btn { flex: 1 1 auto; }
  .scroll-hint { display: none; }
  .brand-sub { display: none; }
}
@media (hover: none) {
  .btn:hover, .pillar:hover, .header-cta:hover { transform: none; }
}

/* ============================================================
   Agent console (living product teaser)
   ============================================================ */
.agent-console {
  max-width: 720px;
  margin: var(--space-16) auto 0;
  text-align: left;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.82), rgba(5, 6, 10, 0.9));
  box-shadow:
    0 30px 80px -30px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(94, 234, 212, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
  isolation: isolate;
  backdrop-filter: blur(8px);
}
.console-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
}
.console-dots {
  display: inline-flex;
  gap: 6px;
}
.console-dots i {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-border-strong);
}
.console-dots i:nth-child(1) { background: #ff5f57; opacity: 0.55; }
.console-dots i:nth-child(2) { background: #febc2e; opacity: 0.55; }
.console-dots i:nth-child(3) { background: #28c840; opacity: 0.55; }
.console-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--color-text-faint);
}
.console-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  text-transform: lowercase;
}
.console-status-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary);
  animation: pulse-dot 1.8s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.8); }
}
.console-body {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  padding: var(--space-5) var(--space-5) var(--space-6);
  height: 320px;
  overflow: hidden;
  position: relative;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 22px, #000 calc(100% - 8px), #000 100%);
  mask-image: linear-gradient(180deg, transparent 0, #000 22px, #000 calc(100% - 8px), #000 100%);
}
.console-line {
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
}
.console-line .cl-prompt { color: var(--color-primary); }
.console-line .cl-dim { color: var(--color-text-faint); }
.console-line .cl-key { color: var(--color-primary-2); }
.console-line .cl-num { color: #f2f4f9; font-weight: 500; }
.console-line .cl-ok { color: var(--color-primary); }
.console-line .cl-warn { color: #febc2e; }
.console-line.cl-result {
  color: var(--color-text);
  padding: 2px 0 2px 10px;
  border-left: 2px solid var(--color-primary);
  margin-top: 4px;
}
.console-cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  vertical-align: -0.15em;
  background: var(--color-primary);
  margin-left: 2px;
  animation: caret 1s steps(2) infinite;
}
@keyframes caret {
  0%, 50% { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}
.console-caption {
  max-width: 46ch;
  margin: var(--space-6) auto 0;
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}
@media (max-width: 560px) {
  .agent-console { margin-top: var(--space-12); }
  .console-body { font-size: 0.72rem; height: 280px; padding: var(--space-4); }
  .console-title { font-size: 0.68rem; }
  .console-status { font-size: 0.62rem; }
}
@media (prefers-reduced-motion: reduce) {
  .console-status-dot, .console-cursor { animation: none; }
}

/* ============================================================
   Footer — «система на связи» uptime line
   ============================================================ */
.site-footer { flex-wrap: wrap; }
.system-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--color-text-faint);
  white-space: nowrap;
}
.sys-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 6px color-mix(in oklab, var(--color-primary) 70%, transparent);
  animation: sys-pulse 2.2s ease-in-out infinite;
  flex: none;
}
@keyframes sys-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px color-mix(in oklab, var(--color-primary) 70%, transparent); }
  50% { opacity: 0.4; box-shadow: 0 0 2px color-mix(in oklab, var(--color-primary) 30%, transparent); }
}
.sys-label { color: var(--color-text-muted); }
.sys-sep { opacity: 0.4; }
.sys-clock {
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}
.sys-tz { opacity: 0.6; }
@media (prefers-reduced-motion: reduce) {
  .sys-dot { animation: none; }
}
@media (max-width: 640px) {
  .system-status {
    margin-left: 0;
    width: 100%;
    margin-top: var(--space-4);
    font-size: 0.66rem;
    gap: 6px;
  }
}

/* ============================================================
   About page + Founder block (portraits)
   ============================================================ */

/* back link in header */
.header-back { letter-spacing: 0.04em; }

/* Reusable portrait frame */
.portrait-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  box-shadow:
    0 40px 100px -40px rgba(0, 0, 0, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  isolation: isolate;
}
.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 22%;
  display: block;
}
/* subtle top sheen line, echoing pillar cards */
.portrait-frame::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.5;
  z-index: 2;
}

/* ---------- About hero ---------- */
.about-hero {
  position: relative;
  max-width: var(--content);
  margin-inline: auto;
  padding: calc(var(--space-24) + var(--space-8)) clamp(var(--space-6), 4vw, var(--space-12)) var(--space-20);
}
.about-hero-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) 1.15fr;
  gap: clamp(var(--space-8), 5vw, var(--space-24));
  align-items: center;
}
.portrait-hero {
  aspect-ratio: 3 / 4;
  max-width: 460px;
}
.about-hero-text { position: relative; isolation: isolate; }
.about-hero-text::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -10% -10%;
  background: radial-gradient(120% 110% at 30% 45%, rgba(5,6,10,0.5) 0%, rgba(5,6,10,0.22) 55%, transparent 82%);
  filter: blur(8px);
  pointer-events: none;
}
.about-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  letter-spacing: -0.01em;
  line-height: 1.02;
  margin-top: var(--space-5);
}
.about-tagline {
  margin-top: var(--space-6);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-xl);
  line-height: 1.25;
  color: var(--color-text);
  max-width: 24ch;
}
.about-tagline em {
  font-style: normal;
  background: linear-gradient(100deg, var(--color-primary), var(--color-primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-facts {
  margin-top: var(--space-10);
  display: grid;
  gap: var(--space-5);
  max-width: 46ch;
}
.about-facts > div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: var(--space-5);
  align-items: baseline;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.about-facts > div:last-child { border-bottom: none; padding-bottom: 0; }
.about-facts dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.about-facts dd {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: none;
}

/* ---------- About sections spacing ---------- */
.about-section { padding-block: clamp(var(--space-16), 9vw, var(--space-24)); }
.about-section .section-lede { margin-bottom: 0; }

/* legibility scrim on text-heavy about sections */
.about-section > .section-head,
.about-section > .section-lede,
.ai-prose {
  position: relative;
  isolation: isolate;
}
.about-section > .section-head::before,
.about-section > .section-lede::before,
.ai-prose::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -18% -8%;
  background: radial-gradient(120% 130% at 30% 50%, rgba(5,6,10,0.55) 0%, rgba(5,6,10,0.28) 55%, transparent 82%);
  filter: blur(8px);
  pointer-events: none;
}

/* ---------- Career timeline ---------- */
.timeline {
  margin-top: var(--space-16);
  position: relative;
  padding-left: var(--space-8);
  list-style: none;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--color-border-strong), var(--color-primary), var(--color-border));
  opacity: 0.6;
}
.tl-item {
  position: relative;
  padding-bottom: var(--space-10);
}
.tl-item:last-child { padding-bottom: 0; }
.tl-node {
  position: absolute;
  left: calc(-1 * var(--space-8) + 0px);
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 2px solid var(--color-border-strong);
  transform: translateX(0);
}
.tl-highlight .tl-node {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--color-primary) 22%, transparent),
              0 0 14px color-mix(in oklab, var(--color-primary) 60%, transparent);
}
.tl-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.tl-org {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.tl-role {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-primary-2);
  line-height: 1.45;
  max-width: 52ch;
}
.tl-desc {
  margin-top: var(--space-2);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: 56ch;
}

/* ---------- Education grid ---------- */
.edu-grid {
  margin-top: var(--space-12);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.edu-item {
  padding: var(--space-6) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), background var(--transition-interactive);
}
.edu-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  background: linear-gradient(180deg, rgba(94,234,212,0.06), rgba(255,255,255,0.01));
}
.edu-years {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-text-faint);
}
.edu-school {
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.edu-field {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: none;
}

/* ---------- Path to AI prose ---------- */
.ai-prose { max-width: 62ch; }
.ai-prose p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: none;
}
.ai-prose p + p { margin-top: var(--space-6); }
.ai-prose strong { color: var(--color-text); font-weight: 600; }
.ai-prose em {
  font-style: normal;
  color: var(--color-primary);
}

/* ============================================================
   Founder block on home (index.html)
   ============================================================ */
.founder {
  position: relative;
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: clamp(var(--space-20), 12vw, var(--space-32));
}
.founder-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) 1.3fr;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: center;
}
.founder-media { max-width: 360px; }
.founder-portrait { aspect-ratio: 3 / 4; }
.founder-text { position: relative; isolation: isolate; }
.founder-text::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -18% -8%;
  background: radial-gradient(120% 130% at 30% 50%, rgba(5,6,10,0.5) 0%, rgba(5,6,10,0.26) 55%, transparent 82%);
  filter: blur(8px);
  pointer-events: none;
}
.founder-name {
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  letter-spacing: -0.01em;
  line-height: 1.05;
}
.founder-role {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-primary-2);
}
.founder-lede {
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.55;
  max-width: 52ch;
}
.founder-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-8);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
}
.founder-link .arrow {
  transition: transform var(--transition-interactive);
  color: var(--color-primary);
}
.founder-link:hover { color: var(--color-primary); }
.founder-link:hover .arrow { transform: translateX(6px); }

/* header nav link «Обо мне» */
.header-nav {
  display: inline-flex;
  align-items: center;
  gap: clamp(var(--space-4), 2vw, var(--space-8));
}
.nav-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-link:hover { color: var(--color-text); }

/* ---------- About / founder responsive ---------- */
@media (max-width: 900px) {
  .about-hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    justify-items: start;
  }
  .portrait-hero { max-width: 380px; width: 100%; }
  .founder-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    justify-items: start;
  }
  .founder-media { max-width: 320px; width: 100%; }
  .edu-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .about-hero { padding-top: var(--space-24); }
  .about-facts > div { grid-template-columns: 76px 1fr; gap: var(--space-4); }
  .edu-grid { grid-template-columns: 1fr; }
  .portrait-hero, .founder-media { max-width: 100%; }
  .header-nav { gap: var(--space-4); }
}
@media (hover: none) {
  .edu-item:hover, .founder-link:hover .arrow { transform: none; }
}

/* Production hardening */
html,body{width:100%;max-width:100%;overflow-x:clip}main,section,header,footer,nav,.hero-inner,.hero-actions,.about-hero-text,.founder-text,.form-field{min-width:0}#bg{max-width:none}.hero-actions{width:min(100%,640px)}
.contact-form{position:relative;isolation:isolate;width:min(100%,760px);margin-top:var(--space-10);display:grid;gap:var(--space-5)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5)}.form-field{display:grid;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text-muted)}.form-field input,.form-field textarea{width:100%;max-width:100%;border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:rgba(5,6,10,.76);padding:var(--space-4);outline:none;resize:vertical}.form-field input:focus,.form-field textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px color-mix(in oklab,var(--color-primary) 18%,transparent)}.form-consent{display:flex;align-items:flex-start;gap:var(--space-3);max-width:62ch;color:var(--color-text-muted);font-size:var(--text-sm)}.form-consent input{margin-top:.35em;flex:none}.form-consent a,.footer-legal a{color:var(--color-primary-2)}.form-trap{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.form-submit{justify-self:start}.form-submit:disabled{opacity:.55;cursor:wait}.form-status{min-height:1.5em;color:var(--color-text-muted)}.form-status.success{color:var(--color-primary)}.form-status.error{color:#febc2e}
.site-footer{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:var(--space-4) var(--space-8)}.footer-main{display:inline-flex;align-items:center;gap:var(--space-3)}.demo-status{margin-left:auto;max-width:none;display:inline-flex;align-items:center;gap:var(--space-2);font-family:var(--font-mono);font-size:.72rem;color:var(--color-text-faint);text-align:right}.footer-legal{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:var(--space-3) var(--space-6);font-size:var(--text-sm)}
.legal-page{max-width:820px;margin:0 auto;padding:calc(var(--space-24) + var(--space-8)) var(--space-6) var(--space-24)}.legal-page h1{font-family:var(--font-display);font-size:var(--text-2xl)}.legal-page h2{margin-top:var(--space-10);font-size:var(--text-xl)}.legal-page p{margin-top:var(--space-4);color:var(--color-text-muted)}
@media(max-width:640px){.site-header,.hero,.section,.founder,.about-hero,.site-footer{padding-left:max(var(--space-5),env(safe-area-inset-left));padding-right:max(var(--space-5),env(safe-area-inset-right))}.form-grid{grid-template-columns:1fr}.hero-actions{width:100%}.hero-actions .btn{width:100%;white-space:normal}.site-footer{grid-template-columns:1fr}.demo-status{margin-left:0;text-align:left;white-space:normal;overflow-wrap:anywhere}.footer-legal{grid-column:auto}}

/* Language selector and about facts readability */
.lang-switch{display:flex;align-items:center;gap:.45rem;margin-left:auto;font:500 .72rem/1 var(--font-mono);letter-spacing:.12em;color:var(--color-text-muted)}
.lang-option{color:inherit;text-decoration:none;transition:color .2s ease}
.lang-option:hover,.lang-option:focus-visible,.lang-option.is-active{color:var(--color-primary-2)}
.header-nav{margin-left:1.1rem}
.about-facts>div{grid-template-columns:minmax(7.5rem,8.5rem) minmax(0,1fr)}
.about-facts dt{white-space:nowrap;overflow-wrap:normal;word-break:keep-all}
@media(max-width:700px){.site-header{gap:.65rem}.lang-switch{margin-left:auto}.header-nav{margin-left:0}.about-facts>div{grid-template-columns:minmax(6.8rem,7.5rem) minmax(0,1fr)}}

/* Bilingual header: prevent overlap at all desktop and mobile widths */
.site-header{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;column-gap:clamp(.65rem,1.8vw,1.5rem)}
.brand{min-width:0}.lang-switch,.header-nav,.header-back{margin:0;white-space:nowrap}.header-nav{justify-self:end}.header-back{justify-self:end}
@media(max-width:760px){.site-header{grid-template-columns:minmax(0,1fr) auto;row-gap:.55rem}.lang-switch{grid-column:2;grid-row:1}.header-nav,.header-back{grid-column:2;grid-row:2}.header-nav{gap:.75rem}.nav-link{font-size:.9rem}.header-cta{display:inline-flex;padding:.65rem .9rem}.header-back{display:inline-flex;font-size:.82rem;padding:.6rem .8rem}}
@media(max-width:430px){.brand-sub{display:none}.site-header{column-gap:.45rem}.lang-switch{font-size:.65rem}.header-nav{gap:.55rem}.nav-link{font-size:.82rem}.header-cta,.header-back{font-size:.76rem;padding:.55rem .68rem}}


/* Final compact bilingual header override */
.site-header{display:grid!important;grid-template-columns:minmax(0,1fr) auto auto!important;align-items:center!important;gap:.75rem clamp(.65rem,1.5vw,1.35rem)!important}
.brand{min-width:0}.lang-switch,.header-nav,.header-back{position:static!important;margin:0!important;white-space:nowrap!important}.lang-switch{grid-column:2}.header-nav,.header-back{grid-column:3;justify-self:end}
@media(max-width:760px){.site-header{grid-template-columns:minmax(0,1fr) auto!important}.lang-switch{grid-column:2;grid-row:1}.header-nav,.header-back{grid-column:2;grid-row:2}.header-nav{gap:.65rem!important}.header-cta,.header-back{display:inline-flex!important;padding:.58rem .76rem!important}.nav-link{font-size:.84rem}}
@media(max-width:430px){.brand-sub{display:none}.site-header{column-gap:.4rem!important}.lang-switch{font-size:.62rem!important}.header-nav{gap:.45rem!important}.nav-link{font-size:.76rem}.header-cta,.header-back{font-size:.72rem!important;padding:.5rem .6rem!important}}

/* Hero signal decode: restrained glow, stable layout, no rapid flicker */
.hero-title .line.is-decoding{opacity:1!important;transform:none!important;filter:drop-shadow(0 0 10px color-mix(in oklab,var(--color-primary) 20%,transparent));transition:filter 1.2s ease}
.hero-title .line.decoded{filter:drop-shadow(0 0 0 transparent)}
@media(prefers-reduced-motion:reduce){.hero-title .line{filter:none!important}}

/* KVANT Signal Decode: binary boot, controlled entropy, intelligent resolve */
.hero-title.signal-binary{filter:drop-shadow(0 0 12px color-mix(in oklab,var(--color-primary) 24%,transparent))}
.hero-title.signal-mixed{filter:drop-shadow(0 0 8px color-mix(in oklab,var(--color-primary-2) 18%,transparent));transition:filter .8s ease}
.hero-title.signal-binary .line,.hero-title.signal-mixed .line{opacity:1!important;transform:none!important}
.hero-title.signal-mixed em{filter:drop-shadow(0 0 12px color-mix(in oklab,var(--color-primary) 32%,transparent))}
.hero-title.signal-complete em{animation:signal-resolve 1.15s cubic-bezier(.2,.8,.2,1) both}
@keyframes signal-resolve{0%{filter:drop-shadow(0 0 18px color-mix(in oklab,var(--color-primary) 48%,transparent))}100%{filter:drop-shadow(0 0 0 transparent)}}
@media(prefers-reduced-motion:reduce){.hero-title,.hero-title em{filter:none!important;animation:none!important}}

/* KVANT Binary Quantum Assembly: superposition resolves into language */
.hero-title .signal-char{display:inline-block;min-width:.01em;will-change:transform,filter,opacity;color:inherit}
.hero-title .signal-char.is-superposed{transform:translate(var(--drift-x),var(--drift-y)) rotate(var(--tilt));opacity:.78;filter:blur(.15px) drop-shadow(0 0 7px color-mix(in oklab,var(--color-primary) 24%,transparent));transition:transform .32s ease,opacity .32s ease,filter .32s ease}
.hero-title.quantum-binary .signal-char{color:color-mix(in oklab,var(--color-text) 72%,var(--color-primary));opacity:.66}
.hero-title.quantum-superposition .line{opacity:1!important;transform:none!important}
.hero-title .signal-char.is-collapsing{transform:translate(0,0) rotate(0);opacity:1;filter:blur(0) drop-shadow(0 0 14px color-mix(in oklab,var(--color-primary-2) 44%,transparent));transition:transform .42s cubic-bezier(.16,1,.3,1),opacity .26s ease,filter .55s ease}
.hero-title .signal-char.is-settled{transform:translate(0,0) rotate(0);opacity:1;filter:none;transition:filter .7s ease}
.hero-title em .signal-char.is-collapsing{filter:drop-shadow(0 0 17px color-mix(in oklab,var(--color-primary) 58%,transparent))}
.hero-title.quantum-complete em{animation:quantum-resolve 1.1s cubic-bezier(.16,1,.3,1) both}
@keyframes quantum-resolve{0%{filter:drop-shadow(0 0 20px color-mix(in oklab,var(--color-primary) 54%,transparent))}100%{filter:drop-shadow(0 0 0 transparent)}}
@media(prefers-reduced-motion:reduce){.hero-title .signal-char{transform:none!important;filter:none!important;opacity:1!important}.hero-title,.hero-title em{animation:none!important}}

/* Binary-collapse correction: preserve font kerning and never stack English glyphs */
.hero-title .signal-char{display:inline;min-width:0;will-change:filter,opacity;transform:none!important;letter-spacing:inherit}
.hero-title .signal-char.is-superposed{transform:none!important;opacity:.68;filter:blur(.35px) drop-shadow(0 0 8px color-mix(in oklab,var(--color-primary) 25%,transparent));transition:opacity .35s ease,filter .35s ease}
.hero-title .signal-char.is-collapsing{transform:none!important;opacity:1;filter:blur(0) drop-shadow(0 0 15px color-mix(in oklab,var(--color-primary-2) 48%,transparent));transition:opacity .28s ease,filter .58s ease}
.hero-title .signal-char.is-settled{transform:none!important;opacity:1;filter:none;transition:filter .72s ease}

/* KVANT Probability Field: 0 and 1 coexist, then collapse into one letter */
.hero-title .probability-char{position:relative;display:inline-block;width:.62em;height:1em;vertical-align:baseline;white-space:nowrap;contain:layout style;will-change:filter,opacity}
.hero-title .probability-zero,.hero-title .probability-one,.hero-title .probability-letter{position:absolute;inset:0;display:flex;align-items:baseline;justify-content:center;transition:transform .42s cubic-bezier(.16,1,.3,1),opacity .32s ease,filter .5s ease}
.hero-title .probability-zero{transform:translateY(calc(var(--field-shift) * -1));opacity:.48;color:color-mix(in oklab,var(--color-text) 70%,var(--color-primary))}
.hero-title .probability-one{transform:translateY(var(--field-shift));opacity:.48;color:color-mix(in oklab,var(--color-text) 62%,var(--color-primary-2))}
.hero-title .probability-letter{transform:scale(.88);opacity:0;filter:blur(3px);color:inherit}
.hero-title.probability-binary .probability-char{filter:drop-shadow(0 0 7px color-mix(in oklab,var(--color-primary) 20%,transparent))}
.hero-title.probability-active .line{opacity:1!important;transform:none!important}
.hero-title .probability-char.field-flip .probability-zero{opacity:.28;transform:translateY(calc(var(--field-shift) * -.65))}
.hero-title .probability-char.field-flip .probability-one{opacity:.62;transform:translateY(calc(var(--field-shift) * .65))}
.hero-title .probability-char.has-letter .probability-letter{opacity:.28;filter:blur(1.2px);transform:scale(.94)}
.hero-title .probability-char.is-collapsing .probability-zero,.hero-title .probability-char.is-collapsing .probability-one{opacity:0;transform:translateY(0) scale(.72);filter:blur(2px)}
.hero-title .probability-char.is-collapsing .probability-letter{opacity:1;transform:scale(1.035);filter:blur(0) drop-shadow(0 0 14px color-mix(in oklab,var(--color-primary-2) 46%,transparent))}
.hero-title .probability-char.is-collapsed .probability-zero,.hero-title .probability-char.is-collapsed .probability-one{display:none}
.hero-title .probability-char.is-collapsed .probability-letter{position:static;display:inline;opacity:1;transform:none;filter:none}
.hero-title em .probability-char.is-collapsing .probability-letter{filter:drop-shadow(0 0 18px color-mix(in oklab,var(--color-primary) 58%,transparent))}
.hero-title.probability-complete em{animation:probability-resolve 1.05s cubic-bezier(.16,1,.3,1) both}
@keyframes probability-resolve{0%{filter:drop-shadow(0 0 19px color-mix(in oklab,var(--color-primary) 50%,transparent))}100%{filter:drop-shadow(0 0 0 transparent)}}
@media(prefers-reduced-motion:reduce){.hero-title .probability-char{width:auto;height:auto}.hero-title .probability-zero,.hero-title .probability-one{display:none!important}.hero-title .probability-letter{position:static!important;display:inline!important;opacity:1!important;transform:none!important;filter:none!important}.hero-title,.hero-title em{animation:none!important}}

/* Probability Field geometry fix: real glyph metrics, exclusive visual states */
.hero-title .probability-char{position:relative;display:inline-block;width:auto;height:1em;vertical-align:baseline;white-space:nowrap;contain:style;line-height:inherit}
.hero-title .probability-metric{display:inline;visibility:hidden;color:transparent;pointer-events:none;user-select:none}
.hero-title .probability-zero,.hero-title .probability-one,.hero-title .probability-letter{position:absolute;inset:0;align-items:baseline;justify-content:center;line-height:inherit}
.hero-title .probability-zero,.hero-title .probability-one{display:flex}
.hero-title .probability-letter{display:flex;opacity:0!important;visibility:hidden;transform:scale(.94);filter:blur(1px)}
.hero-title .probability-char.is-collapsing .probability-zero,.hero-title .probability-char.is-collapsing .probability-one{opacity:0!important;visibility:hidden;transform:translateY(0) scale(.72)}
.hero-title .probability-char.is-collapsing .probability-letter{display:flex;visibility:visible;opacity:1!important;transform:scale(1.025);filter:blur(0) drop-shadow(0 0 14px color-mix(in oklab,var(--color-primary-2) 46%,transparent))}
.hero-title .probability-char.is-collapsed .probability-zero,.hero-title .probability-char.is-collapsed .probability-one{display:none!important;visibility:hidden}
.hero-title .probability-char.is-collapsed .probability-letter{display:flex;visibility:visible;opacity:1!important;transform:none;filter:none}
@media(prefers-reduced-motion:reduce){.hero-title .probability-metric{display:inline;visibility:hidden}.hero-title .probability-letter{display:flex!important;visibility:visible!important;opacity:1!important}}

/* Layout-safe Probability Field: animation is an absolute visual overlay */
.hero-title{position:relative}
.hero-title.pf-running>.line{visibility:hidden!important}
.hero-title .pf-overlay{position:absolute;inset:0;display:block;pointer-events:none;overflow:visible;font:inherit;letter-spacing:inherit;line-height:inherit;color:var(--color-text)}
.hero-title .pf-cell{position:absolute;display:block;overflow:visible;font:inherit;letter-spacing:inherit;line-height:1;color:var(--color-text)}
.hero-title .pf-zero,.hero-title .pf-one,.hero-title .pf-letter{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:inherit;line-height:1;white-space:nowrap;transition:transform .4s cubic-bezier(.16,1,.3,1),opacity .3s ease,filter .48s ease}
.hero-title .pf-zero{transform:translateY(calc(var(--pf-shift) * -1));opacity:.46;color:color-mix(in oklab,var(--color-text) 70%,var(--color-primary))}
.hero-title .pf-one{transform:translateY(var(--pf-shift));opacity:.46;color:color-mix(in oklab,var(--color-text) 64%,var(--color-primary-2))}
.hero-title .pf-letter{visibility:hidden;opacity:0;transform:scale(.94);filter:blur(1px)}
.hero-title .pf-cell.field-flip .pf-zero{opacity:.25;transform:translateY(calc(var(--pf-shift) * -.65))}
.hero-title .pf-cell.field-flip .pf-one{opacity:.62;transform:translateY(calc(var(--pf-shift) * .65))}
.hero-title .pf-cell.is-collapsing .pf-zero,.hero-title .pf-cell.is-collapsing .pf-one{visibility:hidden;opacity:0;transform:translateY(0) scale(.72)}
.hero-title .pf-cell.is-collapsing .pf-letter,.hero-title .pf-cell.is-collapsed .pf-letter{visibility:visible;opacity:1;color:var(--color-text)}
.hero-title .pf-cell.is-collapsing .pf-letter{transform:scale(1.025);filter:blur(0) drop-shadow(0 0 14px color-mix(in oklab,var(--color-primary-2) 46%,transparent))}
.hero-title .pf-cell.is-collapsed .pf-zero,.hero-title .pf-cell.is-collapsed .pf-one{display:none}
.hero-title .pf-cell.is-collapsed .pf-letter{transform:none;filter:none}
.hero-title .pf-cell.is-accent .pf-zero,.hero-title .pf-cell.is-accent .pf-one,.hero-title .pf-cell.is-accent .pf-letter{color:var(--color-primary)}
.hero-title.pf-complete em{animation:probability-overlay-resolve 1.05s cubic-bezier(.16,1,.3,1) both}
@keyframes probability-overlay-resolve{0%{filter:drop-shadow(0 0 18px color-mix(in oklab,var(--color-primary) 48%,transparent))}100%{filter:drop-shadow(0 0 0 transparent)}}
@media(prefers-reduced-motion:reduce){.hero-title>.line{visibility:visible!important}.hero-title .pf-overlay{display:none!important}}

/* Seamless overlay-to-native handoff: crossfade in place, never move the title */
.hero-title.pf-running>.line{visibility:visible!important;opacity:0!important;transform:none!important;transition:none!important;filter:none!important}
.hero-title.pf-handoff>.line{visibility:visible!important;opacity:1!important;transform:none!important;transition:opacity 90ms linear!important;filter:none!important}
.hero-title.pf-handoff .pf-overlay{opacity:0;transition:opacity 90ms linear}
.hero-title.pf-complete>.line{visibility:visible!important;opacity:1!important;transform:none!important;filter:none!important}
.hero-title.pf-complete{transform:none!important}

/* Zero-jump finish: keep the resolved overlay on its measured pixels */
.hero-title.pf-running.pf-complete>.line{visibility:visible!important;opacity:0!important;transform:none!important;transition:none!important}
.hero-title.pf-running.pf-complete .pf-overlay{opacity:1!important;transform:none!important;transition:none!important}
.hero-title.pf-running.pf-complete .pf-cell,.hero-title.pf-running.pf-complete .pf-letter{transform:none!important;transition:none!important}

/* ---------- Impact hero film ---------- */
.impact-hero{width:100%;max-width:none;min-height:100svh;overflow:hidden;isolation:isolate;padding-inline:max(clamp(var(--space-6),4vw,var(--space-12)),calc((100vw - var(--content))/2 + var(--space-6)));background:#05060a}
.hero-poster,.hero-video,.hero-cinema-shade{position:absolute;inset:0;width:100%;height:100%}.hero-poster{z-index:0;transition:opacity 500ms var(--ease-out)}.hero-poster img,.hero-video{width:100%;height:100%;object-fit:cover;object-position:center}.hero-video{z-index:1;opacity:0;transition:opacity 500ms var(--ease-out);transform:translateZ(0);backface-visibility:hidden}.impact-hero.is-video-ready .hero-video{opacity:1}.impact-hero.is-video-ready .hero-poster{opacity:0}.hero-cinema-shade{z-index:2;background:linear-gradient(90deg,rgba(3,5,9,.92),rgba(3,5,9,.66) 38%,rgba(3,5,9,.16) 72%,rgba(3,5,9,.3)),linear-gradient(180deg,rgba(3,5,9,.55),transparent 30%,transparent 65%,rgba(3,5,9,.75))}.impact-hero .hero-inner{position:relative;z-index:3}.impact-hero .hero-inner::before{display:none}.impact-hero .hero-lede{color:rgba(239,244,244,.8);text-shadow:0 2px 24px #0008}.impact-hero .hero-title{text-shadow:0 3px 36px #0007}.hero-sound{position:absolute;z-index:3;right:max(var(--space-6),calc((100vw - var(--content))/2 + var(--space-6)));bottom:var(--space-8);display:inline-flex;align-items:center;gap:.65rem;min-height:42px;padding:.65rem .95rem;border:1px solid #fff4;border-radius:var(--radius-full);color:#fffd;background:#05060a66;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font:inherit;font-size:var(--text-xs);letter-spacing:.08em;text-transform:uppercase;cursor:pointer}.hero-sound[hidden]{display:none}.hero-sound:hover{color:#fff;border-color:#fff8;transform:translateY(-1px)}.hero-sound-dot{width:7px;height:7px;border-radius:50%;background:var(--color-primary);box-shadow:0 0 14px var(--color-primary)}.hero-sound.is-on .hero-sound-dot{animation:heroSoundPulse 1.4s ease-in-out infinite}@keyframes heroSoundPulse{50%{transform:scale(1.6);opacity:.55}}
@media(max-width:700px){.impact-hero{padding-top:calc(var(--space-24) + env(safe-area-inset-top));padding-bottom:calc(var(--space-20) + env(safe-area-inset-bottom))}.hero-cinema-shade{background:linear-gradient(180deg,#030509a0,#0305093d 28%,#030509ad 70%,#030509f2),linear-gradient(90deg,#0305098c,transparent 72%)}.impact-hero .hero-inner{margin-top:auto}.hero-sound{right:max(var(--space-5),env(safe-area-inset-right));bottom:calc(var(--space-5) + env(safe-area-inset-bottom))}.impact-hero .scroll-hint{display:none}.desktop-only{display:none}}
@media(prefers-reduced-motion:reduce){.impact-hero .hero-video{display:none}.impact-hero .hero-poster{opacity:1}.hero-sound{display:none!important}}

/* Impact Hero responsive framing: preserve the full film in narrow desktop windows. */
@media (min-width:701px) and (max-aspect-ratio:4/3) {
  .impact-hero { background:#05060a; }
  .impact-hero .hero-poster img,
  .impact-hero .hero-video { object-fit:contain; object-position:center; }
  .impact-hero .hero-poster,
  .impact-hero .hero-video { background:#05060a; }
  .impact-hero .hero-cinema-shade {
    background:linear-gradient(90deg,rgba(3,5,9,.92),rgba(3,5,9,.62) 48%,rgba(3,5,9,.2)),linear-gradient(180deg,rgba(3,5,9,.44),transparent 28%,transparent 68%,rgba(3,5,9,.68));
  }
}

/* Mobile cinematic hero v4 — scoped to the first video block only. */
@media (max-width:700px) {
  .impact-hero {
    min-height:100svh;
    justify-content:flex-end;
    padding:calc(44svh + var(--space-6)) var(--space-5) calc(var(--space-6) + env(safe-area-inset-bottom));
  }
  .impact-hero .hero-poster img,
  .impact-hero .hero-video {
    object-fit:cover;
    object-position:center 24%;
  }
  .impact-hero .hero-cinema-shade {
    background:linear-gradient(180deg,rgba(3,5,9,.10) 0%,rgba(3,5,9,.16) 34%,rgba(3,5,9,.78) 53%,#030509 76%);
  }
  .impact-hero .hero-inner {
    margin-top:0;
    width:100%;
  }
  .impact-hero .eyebrow {
    margin-bottom:var(--space-3);
    font-size:.64rem;
    line-height:1.35;
    letter-spacing:.24em;
  }
  .impact-hero .hero-title {
    max-width:12.8ch;
    font-size:clamp(2.55rem,12.2vw,4rem);
    line-height:.92;
  }
  .impact-hero .hero-lede {
    margin-top:var(--space-4);
    width:100%;
    font-size:.92rem;
    line-height:1.42;
  }
  .impact-hero .hero-actions {
    margin-top:var(--space-5);
    display:grid;
    grid-template-columns:auto 1fr;
    align-items:center;
    gap:var(--space-4);
    width:100%;
    max-width:none;
  }
  .impact-hero .hero-actions .btn-ghost {
    order:2;
    justify-self:start;
    min-height:auto;
    padding:.5rem 0;
    border:0;
    border-radius:0;
    color:var(--color-text-muted);
    background:none;
    font-size:.82rem;
    text-decoration:underline;
    text-underline-offset:.3em;
  }
  .impact-hero .hero-actions .btn-primary {
    order:1;
    min-height:46px;
    padding:.75rem 1.25rem;
    font-size:.9rem;
  }
  .impact-hero .hero-sound {
    top:calc(var(--space-24) + env(safe-area-inset-top));
    right:var(--space-5);
    bottom:auto;
    min-height:36px;
    padding:.5rem .7rem;
    font-size:.65rem;
    background:rgba(5,6,10,.48);
  }
}
@media (max-width:700px) and (max-height:760px) {
  .impact-hero { padding-top:39svh; }
  .impact-hero .hero-title { font-size:clamp(2.25rem,10.8vw,3.25rem); }
  .impact-hero .hero-lede { font-size:.84rem; line-height:1.35; }
  .impact-hero .hero-actions { margin-top:var(--space-3); }
}

/* Mobile hero sound v5 — isolated hit target below navigation. */
@media (max-width:700px) {
  .impact-hero .hero-sound {
    top:clamp(10.75rem,25svh,13.5rem);
    right:var(--space-5);
    bottom:auto;
    z-index:4;
    min-width:76px;
    min-height:40px;
    padding:.55rem .78rem;
    pointer-events:auto;
    touch-action:manipulation;
  }
}