/* ============================================================
   ICON BJJ — LINEAGE PAGE
   style.css
   Matches The Dojo Floor design system
   ============================================================ */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  --canvas:       #F5F2EE;
  --canvas-deep:  #EDE9E3;
  --canvas-warm:  #E8E3DB;
  --ink:          #1A2B3C;
  --ink-mid:      #3D4F60;
  --ink-light:    #7A8A96;
  --accent:       #C4571A;
  --accent-hover: #A84514;
  --white:        #FEFCFA;
  --ff-display:   'Syne', sans-serif;
  --ff-body:      'DM Sans', sans-serif;

  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    16px;

  --transition:   0.2s ease;
  --transition-md: 0.35s ease;

  --max-w:        1200px;
  --max-w-text:   720px;
}

/* ── RESET ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  font-family: var(--ff-body);
  background: var(--canvas);
  color: var(--ink);
  line-height: 1.65;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── NAV ─────────────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(245, 242, 238, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
#nav.scrolled {
  border-bottom-color: var(--canvas-warm);
  box-shadow: 0 2px 16px rgba(26, 43, 60, 0.06);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  flex-shrink: 0;
  text-decoration: none;
}
.nav-logo em { font-style: normal; color: var(--accent); }
.icon-logo {
  width: 18px; height: 18px;
  flex-shrink: 0;
  display: block;
  border-radius: 3px;
}
.global-tag {
  font-family: var(--ff-body);
  font-weight: 400;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-light);
  padding-left: 0.75rem;
  margin-left: 0.25rem;
  border-left: 1px solid var(--canvas-warm);
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin-left: auto;
}
.nav-links a {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-mid);
  transition: color 0.2s ease;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--accent); }
.nav-cta {
  padding: 0.6rem 1.2rem;
  background: var(--accent);
  color: var(--white);
  border-radius: 999px;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.78rem;
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
}
.nav-cta:hover { background: var(--accent-hover); }
.nav-hamburger {
  display: none;
  width: 44px; height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  margin-left: auto;
}
.nav-hamburger span {
  width: 22px; height: 1.8px;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
  display: block;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.8px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.8px) rotate(-45deg); }

/* ── MOBILE MENU ────────────────────────────────────────────── */
#mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--canvas);
  flex-direction: column;
  padding: 5rem 2rem 2rem;
  overflow-y: auto;
}
#mobile-menu.open { display: flex; }
#mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}
#mobile-menu nav a {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--ink);
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--canvas-warm);
  transition: color 0.2s ease;
}
#mobile-menu nav a:last-child {
  color: var(--accent);
  border-bottom: none;
  margin-top: 0.5rem;
}
#mobile-menu nav a:hover { color: var(--accent); }
.mob-close {
  position: absolute;
  top: 1.25rem; right: 1.5rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--ink-mid);
  cursor: pointer;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mob-foot {
  margin-top: auto;
  padding-top: 2rem;
  font-family: var(--ff-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
  line-height: 1.8;
}

/* ── FOOTER ─────────────────────────────────────────────────── */
footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.65);
  padding: 3.5rem 0 0;
}
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 280px;
}
.footer-logo-link {
  color: var(--white);
}
.footer-logo-link .global-tag,
.global-tag--footer {
  color: rgba(255, 255, 255, 0.35);
  border-left-color: rgba(255, 255, 255, 0.12);
}
.footer-col h3 {
  font-family: var(--ff-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
  margin-bottom: 1.25rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-col a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  font-family: var(--ff-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.28);
  flex-wrap: wrap;
  gap: 1rem;
}
.social { display: flex; gap: 1.5rem; }
.social a {
  font-family: var(--ff-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.38);
  transition: color 0.2s ease;
}
.social a:hover { color: var(--white); }

/* ── FOOTER KEEP ─────────────────────────────────────────────── */
.footer-keep {
  background: var(--ink);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1rem 2rem;
  text-align: center;
  font-family: var(--ff-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.28);
}
.footer-keep a {
  color: rgba(255, 255, 255, 0.46);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-keep a:hover { color: var(--white); }

/* ── HERO ─────────────────────────────────────────────────────── */
.lineage-hero {
  padding: 180px 2.5rem 100px;
  text-align: center;
  background: var(--canvas);
  position: relative;
  overflow: hidden;
}
.lineage-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 60%, rgba(196, 87, 26, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(26, 43, 60, 0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-family: var(--ff-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.7s ease 0.2s forwards;
}
.eyebrow-line {
  display: block;
  height: 1px;
  width: 48px;
  background: var(--accent);
  opacity: 0.5;
}
.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.75rem, 7vw, 6rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.35s forwards;
}
.hero-lead {
  max-width: 580px;
  margin: 0 auto 3rem;
  font-size: 1.125rem;
  color: var(--ink-mid);
  font-weight: 300;
  line-height: 1.7;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}
.hero-scroll-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  font-family: var(--ff-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-light);
  opacity: 0;
  animation: fadeUp 0.8s ease 0.7s forwards;
}
.scroll-dot {
  animation: scrollBounce 1.6s ease-in-out infinite;
}

/* ── ORIGIN BAND ─────────────────────────────────────────────── */
.origin-band {
  background: var(--ink);
  color: var(--white);
  padding: 5rem 2.5rem;
}
.origin-inner {
  max-width: var(--max-w-text);
  margin: 0 auto;
  text-align: center;
  overflow: hidden;
}
.origin-label {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.75rem;
}
.origin-quote {
  font-family: var(--ff-display);
  font-size: clamp(1.25rem, 3vw, 1.875rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--white);
  font-style: normal;
  margin-bottom: 1.25rem;
  position: relative;
}
.origin-quote::before {
  content: '\201C';
  position: absolute;
  left: -0.5em;
  top: -0.1em;
  font-size: 3em;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  font-family: Georgia, serif;
}
.origin-attribution {
  font-size: 0.875rem;
  color: rgba(254, 252, 250, 0.5);
  font-style: italic;
}

/* ── CHAIN SECTION ──────────────────────────────────────────── */
.chain-section {
  padding: 6rem 2.5rem 4rem;
  background: var(--canvas);
}
.chain-container {
  max-width: var(--max-w);
  margin: 0 auto;
}
.chain-header {
  text-align: center;
  margin-bottom: 5rem;
}
.chain-title {
  font-family: var(--ff-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 0.75rem;
}
.chain-intro {
  font-size: 1.0625rem;
  color: var(--ink-mid);
  max-width: 480px;
  margin: 0 auto;
}

/* ── CHAIN NODE ─────────────────────────────────────────────── */
.chain-node {
  display: flex;
  gap: 0;
  margin-bottom: 0;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.chain-node.in-view {
  opacity: 1;
  transform: translateY(0);
}
.node-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 48px;
  padding-top: 2.5rem;
}
.node-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--ink);
  border: 3px solid var(--canvas);
  outline: 2px solid var(--ink);
  flex-shrink: 0;
  z-index: 1;
}
.node-dot--founder {
  background: var(--accent);
  outline-color: var(--accent);
  width: 22px;
  height: 22px;
}
.node-line {
  width: 2px;
  flex: 1;
  min-height: 48px;
  background: linear-gradient(to bottom, var(--ink-light) 0%, var(--canvas-warm) 100%);
  opacity: 0.35;
  margin-top: 4px;
}
.node-content {
  flex: 1;
  padding: 0 0 3rem 1.5rem;
}
.node-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-top: 2.25rem;
}
.node-gen {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
}
.node-year {
  font-size: 0.8125rem;
  color: var(--ink-light);
  font-style: italic;
}
.node-badge {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--white);
  padding: 0.2rem 0.65rem;
  border-radius: 100px;
}
.node-body {
  display: block;
  background: var(--white);
  border: 1px solid rgba(26, 43, 60, 0.08);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  transition: box-shadow var(--transition-md);
}
.node-body:hover {
  box-shadow: 0 8px 40px rgba(26, 43, 60, 0.09);
}
.node-body--reverse {
  /* no longer needed, kept for compatibility */
}

.node-name {
  font-family: var(--ff-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 0.75rem;
}
.name-nickname {
  color: var(--accent);
}
.node-titles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.title-tag {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--canvas-deep);
  color: var(--ink-mid);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}
.title-tag--accent {
  background: var(--accent);
  color: var(--white);
}
.node-text p {
  font-size: 0.9375rem;
  color: var(--ink-mid);
  line-height: 1.7;
  margin-bottom: 0.875rem;
}
.node-text p em { font-style: italic; color: var(--ink); }
.node-text p:last-of-type { margin-bottom: 1.25rem; }
.node-legacy {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  border-top: 1px solid var(--canvas-warm);
  padding-top: 1rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
}
.legacy-label {
  color: var(--ink-light);
  font-style: italic;
  flex-shrink: 0;
}
.legacy-name {
  color: var(--ink-mid);
  font-weight: 500;
}

/* Competition record inside node 5 */
.node-record {
  background: var(--canvas-deep);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}
.record-label {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 0.875rem;
}
.record-list { display: flex; flex-direction: column; gap: 0.45rem; }
.record-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--ink-mid);
}
.record-result {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.55rem;
  border-radius: 100px;
  flex-shrink: 0;
}
.record-result--gold   { background: #F0C040; color: #5a3d00; }
.record-result--silver { background: #C8CDD2; color: #2d3338; }
.record-result--bronze { background: #C46B3A; color: var(--white); }

.node-founder-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--ff-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  transition: gap var(--transition), color var(--transition);
}
.node-founder-link:hover { gap: 0.65rem; color: var(--accent-hover); }

/* ── TRANSMISSION BRIDGE ────────────────────────────────────── */
.transmission-bridge {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0 0 0 23px;
  padding: 0.5rem 0;
}
.bridge-line {
  width: 2px;
  height: 56px;
  background: linear-gradient(to bottom, rgba(26,43,60,0.18) 0%, rgba(196,87,26,0.3) 100%);
}
.bridge-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
}
.bridge-verb::before {
  content: '↓ ';
  color: var(--accent);
  opacity: 0.7;
}

/* ── COMPACT STRIP ──────────────────────────────────────────── */
.strip-section {
  background: var(--ink);
  padding: 5rem 2.5rem;
  overflow: hidden;
}
.strip-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.strip-title {
  font-family: var(--ff-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2.5rem;
  text-align: center;
}
.strip-chain {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}
.strip-node {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1.25rem 1.5rem;
  background: rgba(254,252,250,0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(254,252,250,0.08);
  transition: background var(--transition);
}
.strip-node:hover { background: rgba(254,252,250,0.09); }
.strip-node--founder {
  background: rgba(196, 87, 26, 0.15);
  border-color: rgba(196, 87, 26, 0.3);
}
.strip-node--founder:hover { background: rgba(196, 87, 26, 0.22); }
.strip-initials {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(254,252,250,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-display);
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
}
.strip-initials--founder {
  background: var(--accent);
}
.strip-info { display: flex; flex-direction: column; gap: 0.1rem; }
.strip-info strong {
  font-family: var(--ff-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--white);
}
.strip-info span {
  font-size: 0.75rem;
  color: rgba(254,252,250,0.45);
}
.strip-arrow {
  font-size: 1.25rem;
  color: rgba(254,252,250,0.2);
  padding: 0 0.5rem;
  flex-shrink: 0;
}

/* ── WHY SECTION ────────────────────────────────────────────── */
.why-section {
  background: var(--canvas-deep);
  padding: 6rem 2.5rem;
  border-top: 1px solid rgba(26,43,60,0.06);
}
.why-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem;
  align-items: start;
}
.why-text h2 {
  font-family: var(--ff-display);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 1.5rem;
  line-height: 1.15;
}
.why-text p {
  font-size: 0.9375rem;
  color: var(--ink-mid);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.why-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(26,43,60,0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  align-self: center;
}
.why-stat {
  background: var(--white);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.35rem;
}
.stat-num {
  font-family: var(--ff-display);
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-family: var(--ff-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-light);
}

/* ── CTA ────────────────────────────────────────────────────── */
.lineage-cta {
  background: var(--canvas);
  padding: 6rem 2.5rem;
  border-top: 1px solid rgba(26,43,60,0.06);
}
.cta-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}
.cta-text h2 {
  font-family: var(--ff-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 0.625rem;
  line-height: 1.15;
}
.cta-text p {
  font-size: 1.0625rem;
  color: var(--ink-mid);
  max-width: 440px;
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  font-family: var(--ff-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn-secondary {
  font-family: var(--ff-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-mid);
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(26,43,60,0.18);
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-secondary:hover {
  color: var(--ink);
  border-color: var(--ink);
  transform: translateY(-2px);
}


/* ── ANIMATIONS ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(8px); opacity: 0.4; }
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .lineage-chain-full { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
  .why-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .why-stats {
    max-width: 400px;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .lineage-hero { padding: 140px 1.5rem 70px; }
  .origin-band,
  .chain-section,
  .strip-section,
  .why-section,
  .lineage-cta { padding-left: 1.5rem; padding-right: 1.5rem; }
  .node-body,
  .node-body--reverse {
    padding: 1.5rem;
  }
  .strip-chain {
    flex-direction: column;
    align-items: flex-start;
    flex-wrap: nowrap;
  }
  .strip-arrow { transform: rotate(90deg); padding: 0; align-self: center; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: column; width: 100%; }
  .btn-primary, .btn-secondary { text-align: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-col ul { align-items: flex-start; }
  .node-connector { width: 32px; }
  .transmission-bridge { margin-left: 15px; }
}

@media (max-width: 480px) {
  .lineage-hero { padding-top: 120px; }
  .chain-section { padding-top: 4rem; }
  .node-content { padding-left: 1rem; }
  .node-body { padding: 1.5rem; }
  .why-stats { max-width: 100%; }
}