/* ============================================================
   KELLY LAB — INDEX PAGE STYLES
   css/index.css
   ============================================================ */

/* ── HERO ───────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 8rem 4rem 6rem;
}

#particle-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 95, 255, 0.18) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation: orbFloat1 12s ease-in-out infinite;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
  bottom: 100px;
  left: 10%;
  animation: orbFloat2 15s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 30px) scale(1.05); }
  66% { transform: translate(20px, -20px) scale(0.95); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -40px) scale(1.08); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(26, 95, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 95, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-glow);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out-expo) 0.3s forwards;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--cyan-glow);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.9s var(--ease-out-expo) 0.5s forwards;
}

.hero-headline .line-accent {
  background: linear-gradient(90deg, var(--blue-electric), var(--cyan-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subheadline {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.8;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s var(--ease-out-expo) 0.7s forwards;
}

.hero-cta-group {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s var(--ease-out-expo) 0.9s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 4rem;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out-expo) 1.4s forwards;
}

.hero-scroll span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.scroll-line {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, var(--text-muted), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--cyan-glow);
  animation: scrollPulse 2s ease-in-out infinite 1.8s;
}

@keyframes scrollPulse {
  0% { left: -100%; }
  100% { left: 100%; }
}

.hero-stats {
  position: absolute;
  right: 4rem;
  bottom: 4rem;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out-expo) 1.2s forwards;
}

.stat-item {
  text-align: right;
  border-right: 1px solid var(--border-subtle);
  padding-right: 1.25rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1;
}

.stat-value span { color: var(--cyan-glow); }

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ── FOUNDING THESIS ────────────────────────────────────── */
#thesis {
  padding: 8rem 4rem;
  position: relative;
  overflow: hidden;
}

#thesis::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
}

.thesis-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 6rem;
  align-items: start;
  max-width: 1200px;
}

.thesis-left h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

.thesis-left h2 em {
  font-style: normal;
  color: var(--cyan-glow);
}

.thesis-right blockquote {
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.9;
  color: var(--text-secondary);
  border-left: 2px solid var(--blue-electric);
  padding-left: 2rem;
  position: relative;
}

.thesis-right blockquote strong {
  color: var(--text-primary);
  font-weight: 500;
}

.thesis-right blockquote::before {
  content: '"';
  position: absolute;
  top: -1rem;
  left: 1.5rem;
  font-family: var(--font-display);
  font-size: 5rem;
  color: rgba(26, 95, 255, 0.15);
  line-height: 1;
  pointer-events: none;
}

/* ── THREE PILLARS ──────────────────────────────────────── */
#pillars {
  background: var(--bg-light);
  padding: 8rem 4rem;
  position: relative;
}

#pillars .section-label { color: var(--blue-core); }
#pillars .section-label::before { background: var(--blue-core); }

.pillars-header { margin-bottom: 5rem; }

.pillars-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 600px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  max-width: 1200px;
}

.pillar-card {
  padding: 3rem 3rem 3rem 0;
  border-right: 1px solid rgba(10, 13, 20, 0.1);
  position: relative;
  transition: transform 0.4s var(--ease-out-expo);
}

.pillar-card:last-child { border-right: none; padding-right: 0; }
.pillar-card:not(:first-child) { padding-left: 3rem; }
.pillar-card:hover { transform: translateY(-6px); }

.pillar-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--blue-core);
  margin-bottom: 2rem;
}

.pillar-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
}

.pillar-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.pillar-card p {
  font-size: 0.92rem;
  color: #3A4A62;
  line-height: 1.8;
}

.pillar-tag {
  display: inline-block;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-core);
  border: 1px solid rgba(26, 95, 255, 0.25);
  padding: 0.3rem 0.75rem;
}

/* ── METHODOLOGY TEASER ─────────────────────────────────── */
#methodology {
  padding: 8rem 4rem;
  position: relative;
  overflow: hidden;
}

#methodology::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.methodology-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 6rem;
  align-items: center;
  max-width: 1200px;
}

.methodology-left h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.methodology-left p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 2.5rem;
}

.kelly-formula {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2rem 2.5rem;
  position: relative;
  margin-bottom: 2.5rem;
}

.kelly-formula::before {
  content: 'KELLY CRITERION';
  position: absolute;
  top: -0.5rem;
  left: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  background: var(--bg-surface);
  color: var(--cyan-glow);
  padding: 0 0.5rem;
}

.formula-text {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-align: center;
}

.formula-var { color: var(--cyan-glow); }

.formula-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.formula-legend-item {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.formula-legend-item span { color: var(--cyan-glow); }

.research-loop {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.loop-step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem 0;
  position: relative;
}

.loop-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 19px;
  top: 3.5rem;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--blue-electric), transparent);
}

.loop-dot {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan-glow);
  background: var(--bg-deep);
  transition: background 0.3s, box-shadow 0.3s;
}

.loop-step:hover .loop-dot {
  background: rgba(0, 212, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.loop-content h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.loop-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── PARTNERSHIP CTA BAND ───────────────────────────────── */
#partnership-band {
  padding: 6rem 4rem;
  background: linear-gradient(135deg, var(--bg-surface) 0%, rgba(13, 27, 42, 0.8) 100%);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

#partnership-band::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 100% at 80% 50%, rgba(26, 95, 255, 0.08), transparent);
  pointer-events: none;
}

.partnership-inner {
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.partnership-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.partnership-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.8;
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .thesis-layout,
  .methodology-layout { grid-template-columns: 1fr; gap: 3rem; }
  .pillars-grid { grid-template-columns: 1fr; }
  .pillar-card { border-right: none; border-bottom: 1px solid rgba(10,13,20,0.1); padding: 2rem 0; }
  .pillar-card:last-child { border-bottom: none; }
  .pillar-card:not(:first-child) { padding-left: 0; }
  .partnership-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  #hero, #thesis, #pillars, #methodology, #partnership-band { padding-left: 1.5rem; padding-right: 1.5rem; }
  .hero-stats { display: none; }
}