/* ═══════════════════════════════════════
   YIYIII — Global Styles
   Restrained · Premium · AI-forward
   ═══════════════════════════════════════ */

@import url('https://fonts.loli.net/css2?family=Space+Grotesk:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Brand palette — extracted from logo gradients */
  --brand-deep:   #0052bf;
  --brand-blue:   #0084e8;
  --brand-cyan:   #00baec;
  --brand-teal:   #00dac7;
  --brand-mint:   #2af598;

  /* Neutral palette */
  --fg:           #0f1923;
  --fg-soft:      #3d4f5f;
  --fg-mute:      #7a8a99;
  --bg:           #fdfdfd;
  --bg-warm:      #f6f8fa;
  --bg-card:      #ffffff;
  --line:         #e2e8f0;
  --line-fine:    rgba(15, 25, 35, 0.06);

  /* Gradient */
  --grad-brand: linear-gradient(135deg, var(--brand-deep), var(--brand-cyan), var(--brand-teal));
  --grad-subtle: linear-gradient(135deg, rgba(0,82,191,0.06), rgba(0,218,199,0.06));

  /* Typography */
  --font-en: 'Space Grotesk', sans-serif;
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-body: var(--font-cn);

  /* Sizing */
  --max-w: 1200px;
  --section-pad: clamp(80px, 12vw, 160px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0; padding: 0;
  font-family: var(--font-body);
  color: var(--fg);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

/* ─── Typography Scale ─── */

.t-display {
  font-family: var(--font-en);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.0;
}

.t-section {
  font-family: var(--font-cn);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.t-card-title {
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
}

.t-body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-soft);
}

.t-mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.t-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-blue);
  font-weight: 500;
}

/* ─── Gradient text utility ─── */
.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Scroll Reveal ─── */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal-stagger].visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Site Header ─── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 clamp(20px, 4vw, 48px);
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}
.site-header.scrolled {
  background: rgba(253,253,253,0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  box-shadow: 0 1px 0 var(--line-fine);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--fg);
  transition: opacity 0.2s;
}
.header-brand:hover { opacity: 0.7; }
.header-brand svg { width: 28px; height: 28px; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.header-nav a {
  font-family: var(--font-cn);
  font-size: 14px;
  color: var(--fg-soft);
  transition: color 0.2s;
  font-weight: 500;
}
.header-nav a:hover { color: var(--brand-blue); }
.header-nav .lang-switch {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--fg-mute);
  transition: all 0.2s;
}
.header-nav .lang-switch:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
}

@media (max-width: 720px) {
  .header-nav { gap: 18px; }
  .header-nav a { font-size: 13px; }
}

/* ─── Hero Section ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
  background: var(--bg);
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  animation: glow-drift 12s ease-in-out infinite alternate;
}
.hero-glow-1 {
  background: var(--brand-deep);
  top: 10%; left: 20%;
}
.hero-glow-2 {
  background: var(--brand-teal);
  bottom: 10%; right: 15%;
  animation-delay: -6s;
}

@keyframes glow-drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, -30px) scale(1.15); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero-logo-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 40px;
  animation: hero-logo-enter 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

@keyframes hero-logo-enter {
  from { opacity: 0; transform: scale(0.6) rotate(-15deg); }
  to   { opacity: 1; transform: scale(1) rotate(0deg); }
}
.hero-logo-mark svg {
  animation: logo-float 6s ease-in-out infinite;
}
@keyframes logo-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-6px) rotate(2deg); }
}

.hero-title {
  animation: hero-text-enter 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}
.hero-title .grad-text {
  background-size: 200% 200%;
  animation: grad-flow 6s ease infinite;
}
@keyframes grad-flow {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--fg-soft);
  margin-top: 20px;
  line-height: 1.6;
  animation: hero-text-enter 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}
.hero-sub-brand {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  margin-top: 16px;
  text-transform: uppercase;
  animation: hero-text-enter 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  padding: 14px 32px;
  background: var(--fg);
  color: #fff;
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  animation: hero-text-enter 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.8s both;
}
.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,82,191,0.2);
  background: var(--brand-deep);
}

@keyframes hero-text-enter {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--fg-mute);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  animation: hero-text-enter 0.9s cubic-bezier(0.16, 1, 0.3, 1) 1.2s both;
}
.scroll-line {
  width: 1px;
  height: 32px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--brand-blue);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%   { top: -100%; }
  50%  { top: 100%; }
  100% { top: 100%; }
}

/* ─── Section Layout ─── */
.section {
  padding: var(--section-pad) 0;
  position: relative;
}

.section-head {
  margin-bottom: clamp(48px, 6vw, 80px);
}
.section-head .t-eyebrow {
  margin-bottom: 16px;
}
.section-head .t-section {
  max-width: 600px;
}
.section-lead {
  margin-top: 16px;
  font-size: 16px;
  color: var(--fg-soft);
  max-width: 480px;
  line-height: 1.7;
}

/* ─── Belief Cards ─── */
.belief-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.belief-card {
  background: var(--bg-card);
  padding: clamp(24px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.3s;
}
/* Last two cards span the bottom row evenly */
.belief-card:nth-child(4) { grid-column: 1 / 2; }
.belief-card:nth-child(5) { grid-column: 2 / 4; }
.belief-card:hover {
  background: var(--bg-warm);
}
/* Hover lift for all interactive cards */
.belief-card,
.research-card,
.contact-card,
.product-showcase {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s, background 0.3s;
}
.belief-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,82,191,0.06);
}
.belief-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brand-blue);
  font-weight: 500;
}
.belief-card .t-card-title {
  font-size: 17px;
}
.belief-card .t-body {
  font-size: 14px;
  line-height: 1.7;
}
@media (max-width: 800px) {
  .belief-grid { grid-template-columns: 1fr; }
  .belief-card:nth-child(4),
  .belief-card:nth-child(5) { grid-column: 1; }
}

/* ─── Product Section ─── */
.product-showcase {
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow 0.4s;
}
.product-showcase:hover {
  box-shadow: 0 24px 64px rgba(0,82,191,0.1);
  transform: translateY(-4px);
}
.product-top-bar {
  height: 4px;
  background: var(--grad-brand);
}
.product-inner {
  padding: clamp(32px, 4vw, 48px);
}
.product-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(0,132,232,0.2);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--brand-blue);
  margin-bottom: 28px;
}
.product-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-blue);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.product-name {
  font-family: var(--font-en);
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}
.product-tagline {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 20px;
}
.product-desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-soft);
  margin-bottom: 32px;
}
.product-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-cn);
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-blue);
  transition: gap 0.2s;
}
.product-cta:hover { gap: 14px; }
.product-cta .arrow {
  transition: transform 0.2s;
}
.product-cta:hover .arrow {
  transform: translateX(4px);
}

.coming-banner {
  text-align: center;
  margin-top: 48px;
}
.coming-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-mute);
}

/* ─── Research Grid ─── */
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.research-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: clamp(24px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.research-card:hover {
  border-color: var(--brand-cyan);
  box-shadow: 0 12px 40px rgba(0,186,236,0.1);
  transform: translateY(-4px);
}
/* Animated gradient border on hover */
.research-card {
  position: relative;
}
.research-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 13px;
  padding: 1px;
  background: var(--grad-brand);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.research-card:hover::before {
  opacity: 1;
}
.research-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brand-blue);
  font-weight: 500;
}
.research-name {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.research-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-soft);
}

@media (max-width: 800px) {
  .research-grid { grid-template-columns: 1fr; }
}

/* ─── Founder Section ─── */
.founder-section {
  background: var(--fg);
  color: #fff;
  border-radius: 20px;
  margin: 0 clamp(20px, 4vw, 48px);
  overflow: hidden;
}
.founder-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) clamp(24px, 4vw, 64px);
}
.founder-section .t-eyebrow {
  color: var(--brand-cyan);
}
.founder-section .t-section {
  color: #fff;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.founder-body {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
}
.founder-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.4);
  line-height: 2;
}
.founder-meta strong {
  display: block;
  color: rgba(255,255,255,0.8);
  font-weight: 400;
  font-family: var(--font-cn);
  font-size: 14px;
  letter-spacing: 0;
  margin-top: 4px;
}
.founder-text {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255,255,255,0.8);
}
.founder-text .first-p::first-letter {
  font-family: var(--font-en);
  font-size: 2em;
  font-weight: 700;
  color: var(--brand-cyan);
  float: left;
  margin-right: 6px;
  line-height: 1;
}
.founder-text .sig {
  color: rgba(255,255,255,0.35);
  font-size: 14px;
  margin-top: 8px;
}

@media (max-width: 760px) {
  .founder-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ─── Timeline ─── */
.timeline-list {
  display: flex;
  flex-direction: column;
}
.timeline-row {
  display: grid;
  grid-template-columns: 140px auto 1fr;
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-fine);
  transition: background 0.2s;
}
.timeline-row:first-child {
  border-top: 1px solid var(--line-fine);
}
.timeline-row:hover {
  background: var(--bg-warm);
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-mute);
  letter-spacing: 0.02em;
}
.timeline-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border: 1px solid rgba(0,132,232,0.25);
  border-radius: 4px;
  color: var(--brand-blue);
}
.timeline-title {
  font-weight: 600;
  font-size: 15px;
}
.timeline-summary {
  color: var(--fg-mute);
  font-size: 13px;
  margin-top: 2px;
}

/* Single-entry compact treatment */
.timeline-compact {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px 32px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.timeline-compact .timeline-marker {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--grad-subtle);
  border: 1px solid rgba(0,132,232,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.timeline-compact .timeline-marker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-blue);
}
.timeline-compact .timeline-info {
  flex: 1;
}
.timeline-compact .timeline-date {
  margin-bottom: 4px;
}
.timeline-compact .timeline-chip {
  margin-left: 12px;
}

@media (max-width: 600px) {
  .timeline-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .timeline-compact {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

/* ─── Contact Grid ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 20px;
}
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.3s;
}
.contact-card:hover {
  border-color: var(--brand-cyan);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,186,236,0.06);
}
.contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
  font-weight: 500;
}
.contact-value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg);
  transition: color 0.2s;
}
.contact-value:hover { color: var(--brand-blue); }
.contact-address {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.contact-legal {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-mute);
  line-height: 1.9;
  letter-spacing: 0.02em;
}

@media (max-width: 760px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ─── Footer ─── */
.site-footer {
  padding: 48px 0 56px;
  border-top: 1px solid var(--line-fine);
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}
.footer-legal {
  font-size: 13px;
  color: var(--fg-soft);
  line-height: 1.8;
}
.footer-legal .en {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-mute);
}
.footer-links {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: var(--fg-mute);
}
.footer-links a:hover { color: var(--brand-blue); }
.footer-filings {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line-fine);
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-mute);
  letter-spacing: 0.02em;
}
.footer-filings a { color: var(--fg-mute); }
.footer-filings a:hover { color: var(--brand-blue); }

/* ─── Divider ─── */
.section-divider {
  height: 1px;
  background: var(--line);
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ─── Hero Canvas (dot grid) ─── */
.hero-dots-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* ─── Eyebrow reveal animation ─── */
.t-eyebrow {
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.t-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--brand-blue);
  transform-origin: left;
}
[data-reveal] .t-eyebrow::before {
  transform: scaleX(0);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}
[data-reveal].visible .t-eyebrow::before {
  transform: scaleX(1);
}

/* ─── Product floating animation ─── */
@keyframes product-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.product-name {
  background-size: 200% 200%;
  animation: grad-flow 5s ease infinite;
}

/* ─── Stagger reveal enhancements ─── */
[data-reveal-stagger].visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-stagger].visible > *:nth-child(2) { transition-delay: 80ms; }
[data-reveal-stagger].visible > *:nth-child(3) { transition-delay: 160ms; }
[data-reveal-stagger].visible > *:nth-child(4) { transition-delay: 240ms; }
[data-reveal-stagger].visible > *:nth-child(5) { transition-delay: 320ms; }
[data-reveal-stagger].visible > *:nth-child(6) { transition-delay: 400ms; }

/* ─── Founder section subtle shimmer ─── */
.founder-section {
  position: relative;
  overflow: hidden;
}
.founder-section::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(0,186,236,0.06) 0%, transparent 60%);
  pointer-events: none;
  animation: founder-shimmer 10s ease-in-out infinite alternate;
}
@keyframes founder-shimmer {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(5%, -3%); }
}

/* ───── voxel section (88 cubes assemble into logo) ───── */
.voxel-section {
  background: #ffffff;
  padding: clamp(96px, 14vw, 180px) 0;
  overflow: hidden;
}
.voxel-canvas-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center,
    rgba(0, 100, 210, 0.06) 0%,
    rgba(0, 218, 199, 0.04) 35%,
    transparent 68%);
  pointer-events: none;
  z-index: 0;
}
.voxel-canvas { position: relative; z-index: 1; }
.voxel-section-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 80px;
  align-items: center;
}
.voxel-text { max-width: 460px; }
.voxel-text .t-eyebrow {
  color: var(--brand-blue, #0059cc);
  margin-bottom: 20px;
}
.voxel-text .t-section {
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}
.voxel-text .t-body {
  color: #333;
  line-height: 1.7;
  margin-bottom: 12px;
}
.voxel-text .voxel-text-mute {
  color: #86868b;
  margin-top: 16px;
  font-size: 15px;
}
.voxel-text .voxel-drag-hint {
  color: #86868b;
  margin-top: 28px;
  font-size: 11px;
  letter-spacing: 0.18em;
}
.voxel-canvas-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  min-height: 480px;
}
.voxel-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}
.voxel-canvas:active { cursor: grabbing; }
@media (max-width: 880px) {
  .voxel-section-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .voxel-canvas-wrap { min-height: 360px; aspect-ratio: 1 / 1; }
  .voxel-text { max-width: none; }
}