/* ============================================
   BioBank Data Exchange — bde-data.ai
   Design: Scientific Luxury / Data Observatory
   ============================================ */

:root {
  --navy: #060d1f;
  --navy-mid: #0d1b35;
  --navy-light: #132245;
  --teal: #00d4c8;
  --teal-dim: rgba(0, 212, 200, 0.15);
  --teal-dark: #00a89e;
  --gold: #c8a96e;
  --gold-dim: rgba(200, 169, 110, 0.15);
  --white: #f8f9fc;
  --white-80: rgba(248, 249, 252, 0.8);
  --white-40: rgba(248, 249, 252, 0.4);
  --white-15: rgba(248, 249, 252, 0.08);
  --border: rgba(248, 249, 252, 0.1);
  --border-teal: rgba(0, 212, 200, 0.25);
  --ff-display: 'Playfair Display', Georgia, serif;
  --ff-body: 'DM Sans', system-ui, sans-serif;
  --ff-mono: 'DM Mono', monospace;
  --max-w: 1200px;
  --nav-h: 72px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--ff-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--teal-dark); border-radius: 3px; }

/* ── SELECTION ── */
::selection { background: var(--teal); color: var(--navy); }

/* ── CONTAINER ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ═══════════════════════════════════
   NAVIGATION
═══════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
  background: rgba(6, 13, 31, 0.9);
  border-color: var(--border);
  backdrop-filter: blur(16px);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--white);
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.05em;
}

.logo-icon {
  color: var(--teal);
  font-size: 1.6rem;
  line-height: 1;
  animation: hexSpin 8s linear infinite;
}

@keyframes hexSpin {
  0%, 90% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--white-80);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--teal); }

.nav-links .nav-cta {
  border: 1px solid var(--teal);
  color: var(--teal);
  padding: 0.5rem 1.25rem;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s;
}

.nav-links .nav-cta:hover {
  background: var(--teal);
  color: var(--navy);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
}

/* ═══════════════════════════════════
   HERO
═══════════════════════════════════ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#dna-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  padding-top: calc(var(--nav-h) + 4rem);
  padding-bottom: 6rem;
}

.hero-badge {
  display: inline-block;
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--border-teal);
  padding: 0.35rem 1rem;
  margin-bottom: 2rem;
  border-radius: 2px;
  animation: fadeUp 0.8s ease 0.2s both;
}

.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease 0.4s both;
}

.hero-title em {
  font-style: italic;
  color: var(--teal);
}

.hero-sub {
  max-width: 600px;
  color: var(--white-80);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s ease 0.6s both;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
  animation: fadeUp 0.8s ease 0.8s both;
}

.btn-primary {
  background: var(--teal);
  color: var(--navy);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.9rem 2rem;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.2s;
  display: inline-block;
}

.btn-primary:hover {
  background: var(--teal-dark);
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--white-80);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.9rem 0;
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
}

.btn-ghost:hover { color: var(--teal); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: fadeUp 0.8s ease 1s both;
}

.stat-num {
  display: block;
  font-family: var(--ff-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--white-40);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 0.25rem;
  font-family: var(--ff-mono);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--white-40);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--ff-mono);
  animation: fadeIn 1s ease 1.5s both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--white-40), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ═══════════════════════════════════
   SECTIONS — SHARED
═══════════════════════════════════ */
section {
  padding: 7rem 0;
  position: relative;
}

.section-label {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.section-sub {
  max-width: 620px;
  color: var(--white-80);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 3.5rem;
}

/* ═══════════════════════════════════
   PLATFORM
═══════════════════════════════════ */
#platform { background: var(--navy); }

.overlap-matrix {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 4rem;
}

.matrix-header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  background: var(--navy-light);
  border-bottom: 1px solid var(--border);
}

.matrix-col-label {
  padding: 1rem 1.5rem;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-40);
}

.matrix-col-label.highlight { color: var(--teal); }

.matrix-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease, background 0.2s;
}

.matrix-row.visible {
  opacity: 1;
  transform: translateX(0);
}

.matrix-row:last-child { border-bottom: none; }
.matrix-row:hover { background: var(--white-15); }

.matrix-cell {
  padding: 1rem 1.5rem;
  font-size: 0.9rem;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.matrix-cell:last-child { border-right: none; }
.matrix-cell.cap { color: var(--white-80); }
.matrix-cell.exist { color: var(--white-40); font-family: var(--ff-mono); font-size: 0.82rem; }
.matrix-cell.bde { color: var(--teal); font-weight: 500; }
.check { margin-right: 0.5rem; font-size: 0.75rem; }

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.pillar {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s;
  opacity: 0;
  transform: translateY(30px);
}

.pillar.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s, box-shadow 0.3s;
}

.pillar:hover {
  border-color: var(--border-teal);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 212, 200, 0.08);
}

.pillar-icon {
  color: var(--teal);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.pillar h3 {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.pillar p {
  font-size: 0.88rem;
  color: var(--white-80);
  line-height: 1.7;
}

.pillar p strong { color: var(--gold); }

/* ═══════════════════════════════════
   MARKET
═══════════════════════════════════ */
#market {
  background: var(--navy-mid);
  position: relative;
  overflow: hidden;
}

.market-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(0, 212, 200, 0.04), transparent),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(200, 169, 110, 0.04), transparent);
  pointer-events: none;
}

.market-funnel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 3.5rem;
}

.funnel-tier {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem 2rem;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.funnel-tier.visible {
  opacity: 1;
  transform: translateX(0);
}

.funnel-tier::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  border-radius: 4px 0 0 4px;
}

.tier-1 { background: rgba(0, 212, 200, 0.06); }
.tier-1::before { width: 100%; background: rgba(0, 212, 200, 0.06); }
.tier-2 { background: rgba(0, 212, 200, 0.04); }
.tier-2::before { width: 70%; background: rgba(0, 212, 200, 0.04); }
.tier-3 { background: rgba(0, 212, 200, 0.02); }
.tier-3::before { width: 40%; background: rgba(0, 212, 200, 0.02); }

.funnel-label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.funnel-name {
  font-weight: 500;
  font-size: 1rem;
  color: var(--white);
}

.funnel-detail {
  font-size: 0.8rem;
  color: var(--white-40);
  font-family: var(--ff-mono);
}

.funnel-value {
  font-family: var(--ff-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--teal);
  white-space: nowrap;
}

.revenue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.rev-card {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.75rem;
  transition: border-color 0.3s, transform 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.rev-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s, box-shadow 0.3s;
}

.rev-card:hover {
  border-color: var(--border-teal);
  transform: translateY(-3px);
}

.rev-icon {
  color: var(--gold);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-family: var(--ff-mono);
}

.rev-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.rev-card p {
  font-size: 0.85rem;
  color: var(--white-80);
  line-height: 1.7;
}

/* ═══════════════════════════════════
   USE CASES
═══════════════════════════════════ */
#use-cases { background: var(--navy); }

.pain-strip {
  background: rgba(200, 169, 110, 0.06);
  border: 1px solid rgba(200, 169, 110, 0.2);
  border-radius: 4px;
  padding: 1.5rem 2rem;
  margin-bottom: 3rem;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.pain-label {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
  padding-top: 0.15rem;
  min-width: 130px;
}

.pains {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pain {
  font-size: 0.8rem;
  color: var(--white-80);
  border: 1px solid rgba(200, 169, 110, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: 2px;
  font-family: var(--ff-mono);
}

/* Tabs */
.use-case-tabs { margin-bottom: 4rem; }

.tab-buttons {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--white-40);
  font-family: var(--ff-body);
  font-size: 0.875rem;
  padding: 1rem 1.5rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}

.tab-btn:hover { color: var(--white-80); }
.tab-btn.active { color: var(--teal); border-bottom-color: var(--teal); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.tab-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.tab-text h3 {
  font-family: var(--ff-display);
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: var(--white);
}

.tab-text p {
  color: var(--white-80);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.impact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.impact-list li {
  font-size: 0.9rem;
  color: var(--white-80);
  padding-left: 1.5rem;
  position: relative;
}

.impact-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--teal);
  font-family: var(--ff-mono);
}

/* Mock UI */
.mock-ui {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.mock-bar {
  background: var(--navy-light);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.mock-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}

.mock-dot.red { background: #ff5f57; }
.mock-dot.yellow { background: #febc2e; }
.mock-dot.green { background: #28c840; }

.mock-url {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  color: var(--white-40);
  margin-left: 0.5rem;
}

.mock-filters {
  padding: 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}

.mock-filter {
  font-size: 0.72rem;
  font-family: var(--ff-mono);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  color: var(--white-40);
  cursor: pointer;
  transition: all 0.2s;
}

.mock-filter.active {
  border-color: var(--teal);
  color: var(--teal);
  background: var(--teal-dim);
}

.mock-results { padding: 1rem; display: flex; flex-direction: column; gap: 0.75rem; }

.mock-result {
  background: var(--navy-light);
  border-radius: 4px;
  padding: 0.75rem 1rem;
}

.mock-result-title {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.mock-result-meta {
  font-size: 0.7rem;
  color: var(--white-40);
  font-family: var(--ff-mono);
  margin-bottom: 0.5rem;
}

.mock-result-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.mock-bar-fill {
  height: 100%;
  background: linear-gradient(to right, var(--teal), var(--teal-dark));
  border-radius: 2px;
  animation: barGrow 1.5s ease 0.5s both;
  transform-origin: left;
}

@keyframes barGrow {
  from { width: 0 !important; }
}

/* Biomarker mock */
.mock-biomarker { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.6rem; }

.bm-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.75rem;
  background: var(--navy-light);
  border-radius: 3px;
}

.bm-label { font-size: 0.78rem; color: var(--white-40); font-family: var(--ff-mono); }
.bm-val { font-size: 0.85rem; color: var(--white); font-weight: 500; }
.bm-highlight { color: var(--teal); }
.bm-green { color: #4ade80; }

/* AI mock */
.mock-ai-grid {
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.ai-tag {
  font-size: 0.72rem;
  font-family: var(--ff-mono);
  border: 1px solid var(--border-teal);
  color: var(--teal);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  background: var(--teal-dim);
}

.ai-stat-row {
  padding: 1rem;
  display: flex;
  gap: 1.5rem;
}

.ai-stat {
  font-size: 0.78rem;
  color: var(--white-80);
  font-family: var(--ff-mono);
}

.ai-stat span {
  color: var(--gold);
  font-weight: 500;
  font-size: 1.1rem;
  display: block;
}

/* Timeline mock */
.mock-timeline { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.75rem; }

.tl-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.tl-label { font-size: 0.78rem; color: var(--white-40); font-family: var(--ff-mono); min-width: 80px; }
.tl-time { font-size: 0.78rem; color: var(--white-80); min-width: 80px; }

.tl-bar {
  height: 16px;
  border-radius: 2px;
  flex: 1;
}

.old-bar {
  background: rgba(248, 249, 252, 0.1);
  width: 100%;
  position: relative;
}

.new-bar {
  background: linear-gradient(to right, var(--teal), var(--teal-dark));
  width: 20%;
  animation: barGrow 1.5s ease 0.5s both;
}

.tl-caption { font-size: 0.7rem; color: var(--white-40); font-family: var(--ff-mono); padding: 0 1.25rem 1rem; }

/* Strategic Layer */
.strategic-layer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 3rem 2rem;
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 4px;
  flex-wrap: wrap;
}

.sl-item {
  text-align: center;
  max-width: 220px;
  opacity: 0;
  transform: translateY(20px);
}

.sl-item.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.sl-icon {
  font-size: 2rem;
  color: var(--teal);
  margin-bottom: 0.75rem;
}

.sl-item h4 {
  font-family: var(--ff-display);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.sl-item p {
  font-size: 0.82rem;
  color: var(--white-80);
  line-height: 1.6;
}

.sl-arrow {
  font-size: 1.5rem;
  color: var(--border-teal);
  font-family: var(--ff-mono);
}

/* ═══════════════════════════════════
   WHY NOW
═══════════════════════════════════ */
#why-now {
  background: var(--navy-mid);
  position: relative;
  overflow: hidden;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 4rem;
}

.why-col-title {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  color: var(--white-40);
}

.barrier-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.barrier {
  font-size: 0.9rem;
  color: var(--white-40);
  padding: 0.75rem 1rem;
  background: var(--white-15);
  border-radius: 3px;
  border-left: 3px solid rgba(248, 249, 252, 0.15);
  text-decoration: line-through;
  text-decoration-color: rgba(248, 249, 252, 0.2);
}

.why-col-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 2rem;
  gap: 0.5rem;
}

.divider-line {
  width: 1px;
  flex: 1;
  background: var(--border);
  min-height: 40px;
}

.divider-now {
  font-family: var(--ff-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--teal);
  padding: 0.5rem;
  border: 1px solid var(--border-teal);
  border-radius: 2px;
  white-space: nowrap;
  writing-mode: horizontal-tb;
}

.catalyst-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.catalyst {
  display: flex;
  gap: 1rem;
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.25rem;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.catalyst.visible {
  opacity: 1;
  transform: translateX(0);
}

.catalyst-icon { color: var(--teal); font-size: 1rem; flex-shrink: 0; margin-top: 0.1rem; }

.catalyst h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--white);
}

.catalyst p {
  font-size: 0.82rem;
  color: var(--white-80);
  line-height: 1.6;
}

.readiness-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 3.5rem;
}

.rb-item {
  background: var(--navy);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: background 0.2s;
}

.rb-item:hover { background: var(--navy-light); }

.rb-icon {
  font-size: 1.25rem;
  color: var(--teal);
  margin-bottom: 0.25rem;
  font-family: var(--ff-mono);
}

.rb-item > span:nth-child(2) { font-size: 0.95rem; font-weight: 500; color: var(--white); }
.rb-item small { font-size: 0.78rem; color: var(--white-40); font-family: var(--ff-mono); }

.thesis-quote {
  font-family: var(--ff-display);
  font-size: clamp(1.15rem, 2.5vw, 1.6rem);
  font-style: italic;
  color: var(--white-80);
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  line-height: 1.6;
  position: relative;
}

.thesis-quote::before {
  content: '"';
  position: absolute;
  top: -1rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 3rem;
  color: var(--teal);
  line-height: 1;
  background: var(--navy-mid);
  padding: 0 0.5rem;
}

/* ═══════════════════════════════════
   BUSINESS MODEL CANVAS
═══════════════════════════════════ */
#model { background: var(--navy); }

.bmc-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: auto auto auto;
  gap: 0.75rem;
}

.bmc-card {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  transition: border-color 0.3s;
}

.bmc-card:hover { border-color: var(--border-teal); }

.bmc-card-label {
  font-family: var(--ff-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}

.bmc-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }

.bmc-card ul li {
  font-size: 0.82rem;
  color: var(--white-80);
  line-height: 1.5;
  padding-left: 0.9rem;
  position: relative;
}

.bmc-card ul li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--teal);
}

.bmc-card ul li strong { color: var(--white); }

/* Grid placement */
.partners    { grid-column: 1 / 3; grid-row: 1 / 3; }
.activities  { grid-column: 3 / 5; grid-row: 1; }
.value-prop  { grid-column: 5 / 7; grid-row: 1 / 3; background: rgba(0,212,200,0.04); border-color: var(--border-teal); }
.relationships { grid-column: 7 / 9; grid-row: 1; }
.segments    { grid-column: 9 / 11; grid-row: 1 / 3; }
.resources   { grid-column: 3 / 5; grid-row: 2; }
.channels    { grid-column: 7 / 9; grid-row: 2; }
.costs       { grid-column: 1 / 6; grid-row: 3; }
.revenues    { grid-column: 6 / 11; grid-row: 3; }

/* Value prop special */
.vp-grid { display: flex; flex-direction: column; gap: 0.75rem; }

.vp-item {
  background: var(--navy);
  border-radius: 3px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.vp-who {
  font-size: 0.68rem;
  font-family: var(--ff-mono);
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.vp-what {
  font-size: 0.82rem;
  color: var(--white-80);
  line-height: 1.5;
}

/* ═══════════════════════════════════
   CONTACT
═══════════════════════════════════ */
#contact {
  background: var(--navy-mid);
  position: relative;
  overflow: hidden;
}

#contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(0, 212, 200, 0.06), transparent);
  pointer-events: none;
}

.cta-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}

.contact-form {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2.5rem;
  margin-top: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full { margin-bottom: 1.25rem; }

.form-group label {
  font-size: 0.78rem;
  font-family: var(--ff-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white-40);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.85rem 1rem;
  color: var(--white);
  font-family: var(--ff-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group select option { background: var(--navy-mid); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.btn-full { width: 100%; display: block; text-align: center; padding: 1rem; font-size: 1rem; margin-top: 0.5rem; }

.form-note {
  font-size: 0.75rem;
  color: var(--white-40);
  text-align: center;
  margin-top: 1rem;
  font-family: var(--ff-mono);
}

/* ═══════════════════════════════════
   FOOTER
═══════════════════════════════════ */
footer {
  background: var(--navy);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 4rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.footer-left { max-width: 280px; }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--white-40);
  margin: 1rem 0 0.5rem;
  line-height: 1.7;
}

.footer-domain {
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  color: var(--teal);
}

.footer-links {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.footer-col { display: flex; flex-direction: column; gap: 0.75rem; }

.footer-col-title {
  font-family: var(--ff-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white-40);
  margin-bottom: 0.25rem;
}

.footer-col a {
  color: var(--white-80);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--teal); }

.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--white-40);
  font-family: var(--ff-mono);
}

/* ═══════════════════════════════════
   ANIMATIONS
═══════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ═══════════════════════════════════
   RESPONSIVE
═══════════════════════════════════ */
@media (max-width: 1100px) {
  .bmc-grid { grid-template-columns: repeat(6, 1fr); }
  .partners    { grid-column: 1 / 3; grid-row: 1; }
  .activities  { grid-column: 3 / 5; grid-row: 1; }
  .value-prop  { grid-column: 5 / 7; grid-row: 1 / 3; }
  .relationships { grid-column: 1 / 3; grid-row: 2; }
  .segments    { grid-column: 3 / 5; grid-row: 2; }
  .resources   { grid-column: 5 / 7; grid-row: 3 !important; }
  .channels    { grid-column: 1 / 3; grid-row: 3 !important; }
  .costs       { grid-column: 1 / 4; grid-row: 4 !important; }
  .revenues    { grid-column: 4 / 7; grid-row: 4 !important; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(6, 13, 31, 0.98);
    backdrop-filter: blur(20px);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
  }
  .hamburger { display: flex; }

  .tab-inner { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .why-col-divider { display: none; }
  .readiness-banner { grid-template-columns: 1fr 1fr; }

  .bmc-grid { grid-template-columns: 1fr 1fr; }
  .partners, .activities, .value-prop, .relationships, .segments, .resources, .channels { grid-column: auto; grid-row: auto; }
  .costs, .revenues { grid-column: span 2; grid-row: auto; }

  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  section { padding: 5rem 0; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .stat-divider { display: none; }
  .funnel-tier { flex-direction: column; gap: 0.5rem; }
  .readiness-banner { grid-template-columns: 1fr; }
  .bmc-grid { grid-template-columns: 1fr; }
  .costs, .revenues { grid-column: span 1; }
  .strategic-layer { flex-direction: column; }
  .sl-arrow { transform: rotate(90deg); }
  .footer-links { flex-direction: column; gap: 2rem; }
}

/* ═══════════════════════════════════
   INVESTOR NAV LINK
═══════════════════════════════════ */
.nav-investor {
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s !important;
}
.nav-investor:hover {
  background: var(--gold) !important;
  color: var(--navy) !important;
}

/* ═══════════════════════════════════
   PROTECTED SECTIONS
═══════════════════════════════════ */
.protected-section {
  display: none;
}

/* ═══════════════════════════════════
   ACCESS GATE
═══════════════════════════════════ */
#access-gate {
  position: relative;
  overflow: hidden;
}

#access-gate::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(200,169,110,0.06), transparent),
    radial-gradient(ellipse 40% 60% at 80% 100%, rgba(0,212,200,0.04), transparent);
  pointer-events: none;
}

.gate-card {
  max-width: 520px;
  margin: 0 auto;
}

.gate-card-wide  { max-width: 680px; }
.gate-card-narrow { max-width: 440px; }

.gate-card-inner {
  background: var(--navy-mid);
  border: 1px solid rgba(200,169,110,0.25);
  border-radius: 6px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
  position: relative;
}

.gate-card-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(200,169,110,0.4), transparent);
}

.gate-icon {
  font-size: 2.5rem;
  color: var(--gold);
  animation: hexSpin 10s linear infinite;
}

.gate-heading {
  font-family: var(--ff-display);
  font-size: 1.4rem;
  color: var(--white);
}

.gate-desc {
  font-size: 0.9rem;
  color: var(--white-80);
  line-height: 1.8;
  max-width: 420px;
}

.gate-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.gate-btn-primary {
  background: var(--gold);
  color: var(--navy);
  border: none;
  border-radius: 3px;
  font-family: var(--ff-body);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.8rem 2rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  text-align: center;
}

.gate-btn-primary:hover {
  background: #b8943a;
  transform: translateY(-1px);
}

.gate-btn-primary.full {
  width: 100%;
  padding: 0.9rem;
  font-size: 1rem;
}

.gate-btn-ghost {
  background: none;
  color: var(--white-80);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--ff-body);
  font-size: 0.875rem;
  padding: 0.8rem 1.5rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.gate-btn-ghost:hover {
  border-color: var(--white-40);
  color: var(--white);
}

.gate-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  color: var(--white-40);
  font-size: 0.72rem;
  font-family: var(--ff-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.gate-divider::before,
.gate-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.gate-preview-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  width: 100%;
  text-align: left;
}

.gpi {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--white-80);
  padding: 0.5rem 0.75rem;
  background: var(--white-08);
  border-radius: 3px;
  border: 1px solid var(--border);
}

.gpi-icon { color: var(--gold); font-size: 0.7rem; }

/* Gate form */
.gate-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.gate-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.gate-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.gate-field label {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white-40);
}

.gate-field input,
.gate-field select,
.gate-field textarea {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--white);
  font-family: var(--ff-body);
  font-size: 0.9rem;
  padding: 0.7rem 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.gate-field input:focus,
.gate-field select:focus,
.gate-field textarea:focus { border-color: var(--gold); }

.gate-field select option { background: var(--navy); }
.gate-field textarea { resize: vertical; }

.gate-error {
  background: rgba(248,113,113,0.1);
  border: 1px solid rgba(248,113,113,0.3);
  color: #f87171;
  border-radius: 3px;
  padding: 0.65rem 0.9rem;
  font-size: 0.82rem;
  text-align: left;
  width: 100%;
}

.gate-hint {
  font-size: 0.78rem;
  color: var(--white-40);
  text-align: center;
}

.gate-hint a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.2s;
}

.gate-hint a:hover { color: var(--teal); }

/* Verifying spinner */
.gate-verifying {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 4rem;
  color: var(--white-80);
}

.gate-spinner {
  width: 40px; height: 40px;
  border: 2px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Success state */
.gate-success {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  padding: 3rem 2rem;
  background: var(--navy-mid);
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: 6px;
}

.gate-success-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(74,222,128,0.12);
  border: 1px solid rgba(74,222,128,0.3);
  color: #4ade80;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.gate-success h3 {
  font-family: var(--ff-display);
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.gate-success p {
  font-size: 0.9rem;
  color: var(--white-80);
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

/* Unlocked header */
.gate-unlocked-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem 2rem;
  background: rgba(74,222,128,0.04);
  border: 1px solid rgba(74,222,128,0.15);
  border-radius: 4px;
  margin-bottom: 1rem;
}

.gate-revoke-btn {
  white-space: nowrap;
  font-size: 0.78rem;
  border-color: rgba(248,113,113,0.3);
  color: #f87171;
}

.gate-revoke-btn:hover {
  border-color: rgba(248,113,113,0.6) !important;
  color: #f87171 !important;
}

/* ═══════════════════════════════════
   TOAST NOTIFICATIONS
═══════════════════════════════════ */
.bde-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  padding: 0.85rem 1.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-family: var(--ff-mono);
  color: var(--navy);
  font-weight: 500;
  transform: translateY(20px);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 340px;
}

.bde-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.bde-toast-success { background: #4ade80; }
.bde-toast-info    { background: var(--teal); }
.bde-toast-error   { background: #f87171; color: var(--white); }

/* ═══════════════════════════════════
   PROTECTED SECTIONS — TRANSITION
═══════════════════════════════════ */
.protected-section {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (max-width: 620px) {
  .gate-preview-items { grid-template-columns: 1fr; }
  .gate-row { grid-template-columns: 1fr; }
  .gate-actions { flex-direction: column; }
  .gate-btn-primary, .gate-btn-ghost { width: 100%; justify-content: center; text-align: center; }
}