/* ═══════════════════════════════════════════════════════════════
   EigenEase Labs — Global Stylesheet
   Theme: Dark Space · Electric Blue / Cyan Accents
   ═══════════════════════════════════════════════════════════════ */

/* ── Fonts ─────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Fira+Code:wght@300;400;500&display=swap');

/* ── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary:    #050a12;
  --bg-secondary:  #0a1628;
  --bg-card:       #0d1f35;
  --bg-card-hover: #122440;
  --accent-blue:   #00a8ff;
  --accent-cyan:   #00e5d1;
  --accent-purple: #7c5ff5;
  --text-primary:  #e8f4ff;
  --text-secondary:#8ba3bf;
  --text-muted:    #4a6785;
  --border:        rgba(0, 168, 255, 0.15);
  --border-hover:  rgba(0, 168, 255, 0.40);
  --glow-blue:     0 0 24px rgba(0, 168, 255, 0.35);
  --glow-cyan:     0 0 24px rgba(0, 229, 209, 0.35);
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

/* ── Scrollbar ──────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 3px; }

/* ── Typography ─────────────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

a { color: inherit; text-decoration: none; }

.mono { font-family: 'Fira Code', monospace; }

/* ── Layout Utilities ───────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(1.2rem, 5vw, 3rem);
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section-label {
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--accent-cyan);
}

.section-title {
  background: linear-gradient(135deg, var(--text-primary) 40%, var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.2rem;
}

.section-desc {
  color: var(--text-secondary);
  max-width: 640px;
  font-size: 1.05rem;
}

/* ── Noise overlay ──────────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ════════════════════════════════════════════════════════════════
   NAV
   ════════════════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
  padding-block: 1rem;
}
#navbar.scrolled {
  background: rgba(5, 10, 18, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  font-size: 1.1rem;
}
.nav-logo svg { flex-shrink: 0; }
.nav-logo-text { letter-spacing: -0.01em; }
.nav-logo-text span { color: var(--accent-cyan); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.2rem;
  font-size: 0.9rem;
  font-weight: 500;
}
.nav-links a {
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-blue);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  padding: 0.55rem 1.3rem;
  border-radius: 8px;
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  font-size: 0.88rem;
  font-weight: 600;
  transition: background var(--transition), box-shadow var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--accent-blue);
  color: var(--bg-primary);
  box-shadow: var(--glow-blue);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ════════════════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════════════════ */
#hero {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

/* Animated grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 168, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 168, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

/* Bloch-sphere-inspired orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  animation: orbFloat 8s ease-in-out infinite;
}
.hero-orb-1 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, var(--accent-blue), transparent 70%);
  top: -180px; right: -140px;
  animation-delay: 0s;
}
.hero-orb-2 {
  width: 360px; height: 360px;
  background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
  bottom: -80px; left: -100px;
  animation-delay: -3s;
}
.hero-orb-3 {
  width: 240px; height: 240px;
  background: radial-gradient(circle, var(--accent-purple), transparent 70%);
  top: 40%; left: 20%;
  animation-delay: -5s;
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: rgba(0, 168, 255, 0.06);
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--accent-cyan);
  margin-bottom: 2rem;
  letter-spacing: 0.05em;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.8rem, 6.5vw, 5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.hero-title .line-accent {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 2.8rem;
  font-weight: 400;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
  box-shadow: 0 4px 20px rgba(0, 168, 255, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 168, 255, 0.55);
  filter: brightness(1.08);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.btn-secondary:hover {
  border-color: var(--border-hover);
  background: rgba(0, 168, 255, 0.07);
  box-shadow: var(--glow-blue);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: clamp(2rem, 5vw, 4rem);
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'Fira Code', monospace;
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

/* scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-family: 'Fira Code', monospace;
  letter-spacing: 0.1em;
  animation: fadeInUp 1s ease 1.2s both;
}
.scroll-indicator .arrow {
  width: 20px;
  height: 28px;
  border: 1px solid var(--text-muted);
  border-radius: 10px;
  position: relative;
}
.scroll-indicator .arrow::after {
  content: '';
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-blue);
  animation: scrollDot 1.8s ease infinite;
}
@keyframes scrollDot {
  0% { top: 5px; opacity: 1; }
  80% { top: 16px; opacity: 0; }
  100% { top: 5px; opacity: 0; }
}

/* ════════════════════════════════════════════════════════════════
   PROBLEM
   ════════════════════════════════════════════════════════════════ */
#problem {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 4rem;
  align-items: center;
  margin-top: 3rem;
}

.problem-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.problem-item {
  display: flex;
  gap: 1.2rem;
  padding: 1.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(13, 31, 53, 0.4);
  transition: border-color var(--transition), background var(--transition);
}
.problem-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.problem-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 1.3rem;
  background: rgba(0, 168, 255, 0.1);
  border: 1px solid rgba(0, 168, 255, 0.2);
}
.problem-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--text-primary);
}
.problem-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Quantum circuit visual */
.problem-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.circuit-diagram {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}
.circuit-diagram::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
}
.circuit-title {
  font-size: 0.72rem;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  margin-bottom: 1.2rem;
}
.qubit-line {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}
.qubit-label {
  color: var(--accent-blue);
  width: 2.5rem;
  flex-shrink: 0;
}
.wire { flex: 1; height: 1px; background: var(--text-muted); opacity: 0.4; position: relative; }
.gate {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border: 1px solid;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 500;
  flex-shrink: 0;
}
.gate-h { border-color: var(--accent-blue); color: var(--accent-blue); }
.gate-x { border-color: var(--accent-cyan); color: var(--accent-cyan); }
.gate-cnot { border-color: var(--accent-purple); color: var(--accent-purple); }
.gate-rz { border-color: #ff7c5c; color: #ff7c5c; }
.circuit-error {
  margin-top: 1.2rem;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  background: rgba(255, 60, 60, 0.08);
  border: 1px solid rgba(255, 60, 60, 0.2);
  color: #ff6b6b;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ════════════════════════════════════════════════════════════════
   SOLUTION
   ════════════════════════════════════════════════════════════════ */
#solution {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
#solution::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(0,168,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.solution-header {
  text-align: center;
  margin-bottom: 4rem;
}
.solution-header .section-label { justify-content: center; }
.solution-header .section-label::before { display: none; }
.solution-header .section-label::after {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--accent-cyan);
}
.solution-header .section-desc { margin-inline: auto; text-align: center; }

/* Architecture stack */
.arch-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
  position: relative;
}

.arch-card {
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
  cursor: default;
}
.arch-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,168,255,0.04), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.arch-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4), var(--glow-blue);
}
.arch-card:hover::before { opacity: 1; }

.arch-layer-badge {
  font-family: 'Fira Code', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  opacity: 0.8;
}
.arch-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  line-height: 1;
}
.arch-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}
.arch-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.arch-tag {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.2rem 0.7rem;
  border-radius: 100px;
  background: rgba(0,168,255,0.1);
  border: 1px solid rgba(0,168,255,0.2);
  font-family: 'Fira Code', monospace;
  font-size: 0.68rem;
  color: var(--accent-blue);
}

/* Connector arrows */
.arch-connectors {
  display: none; /* shown via JS on wide screens */
}

/* Full stack overview */
.stack-overview {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2rem;
  overflow-x: auto;
}
.stack-label {
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}
.stack-layers {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.stack-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.stack-row-label {
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  width: 120px;
  flex-shrink: 0;
}
.stack-blocks {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.stack-block {
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  font-family: 'Fira Code', monospace;
  font-size: 0.73rem;
  font-weight: 500;
  white-space: nowrap;
}
.sb-blue { background: rgba(0,168,255,0.12); border: 1px solid rgba(0,168,255,0.25); color: var(--accent-blue); }
.sb-cyan { background: rgba(0,229,209,0.1); border: 1px solid rgba(0,229,209,0.22); color: var(--accent-cyan); }
.sb-purple { background: rgba(124,95,245,0.1); border: 1px solid rgba(124,95,245,0.22); color: var(--accent-purple); }
.sb-gray { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: var(--text-secondary); }

/* ════════════════════════════════════════════════════════════════
   VISION & ROADMAP
   ════════════════════════════════════════════════════════════════ */
#roadmap {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.roadmap-header { margin-bottom: 3.5rem; }

.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan), var(--accent-purple));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: 2rem;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.45rem;
  top: 0.3rem;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent-blue);
  box-shadow: var(--glow-blue);
  transition: background var(--transition);
}
.timeline-item:nth-child(2)::before { border-color: var(--accent-cyan); box-shadow: var(--glow-cyan); }
.timeline-item:nth-child(3)::before { border-color: var(--accent-purple); box-shadow: 0 0 12px rgba(124,95,245,0.5); }
.timeline-item:nth-child(4)::before {
  border-color: var(--text-muted);
  box-shadow: none;
  background: var(--text-muted);
}

.timeline-phase {
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent-blue);
  margin-bottom: 0.4rem;
}
.timeline-item:nth-child(2) .timeline-phase { color: var(--accent-cyan); }
.timeline-item:nth-child(3) .timeline-phase { color: var(--accent-purple); }
.timeline-item:nth-child(4) .timeline-phase { color: var(--text-muted); }

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}
.timeline-card:hover { border-color: var(--border-hover); }
.timeline-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}
.timeline-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
}
.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tag {
  padding: 0.18rem 0.6rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-family: 'Fira Code', monospace;
  background: rgba(0,168,255,0.08);
  border: 1px solid rgba(0,168,255,0.18);
  color: var(--accent-blue);
}
.tag-cyan { background: rgba(0,229,209,0.08); border-color: rgba(0,229,209,0.18); color: var(--accent-cyan); }
.tag-purple { background: rgba(124,95,245,0.08); border-color: rgba(124,95,245,0.18); color: var(--accent-purple); }

.vision-quote {
  margin-top: 3rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(0,168,255,0.05), rgba(0,229,209,0.03));
  text-align: center;
}
.vision-quote blockquote {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  color: var(--text-primary);
  font-weight: 300;
  font-style: italic;
  line-height: 1.55;
  max-width: 700px;
  margin-inline: auto;
}
.vision-quote blockquote strong { color: var(--accent-cyan); font-style: normal; font-weight: 600; }

/* ════════════════════════════════════════════════════════════════
   TEAM
   ════════════════════════════════════════════════════════════════ */
#team {
  background: var(--bg-secondary);
}

.team-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.team-header .section-label { justify-content: center; }
.team-header .section-label::before { display: none; }
.team-header .section-label::after {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--accent-cyan);
}
.team-header .section-desc { margin-inline: auto; text-align: center; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.team-card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.team-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  opacity: 0;
  transition: opacity var(--transition);
}
.team-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.team-card:hover::after { opacity: 1; }

.team-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--bg-primary);
  margin-bottom: 1.2rem;
  position: relative;
}
.team-avatar .online-ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  opacity: 0.4;
}

.team-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.team-role {
  font-size: 0.82rem;
  font-family: 'Fira Code', monospace;
  color: var(--accent-cyan);
  margin-bottom: 0.8rem;
}
.team-bio {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.2rem;
}
.team-affiliations {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.affil {
  padding: 0.18rem 0.65rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-family: 'Fira Code', monospace;
  background: rgba(124,95,245,0.1);
  border: 1px solid rgba(124,95,245,0.2);
  color: var(--accent-purple);
}

/* Advisors */
.advisors-section { margin-top: 3.5rem; }
.advisors-label {
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  text-align: center;
}
.advisors-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.advisor-pill {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1.2rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.advisor-pill:hover {
  border-color: var(--border-hover);
  box-shadow: var(--glow-blue);
}
.advisor-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,168,255,0.3), rgba(0,229,209,0.3));
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-blue);
  flex-shrink: 0;
}
.advisor-info { line-height: 1.3; }
.advisor-name { font-size: 0.85rem; font-weight: 600; }
.advisor-inst { font-size: 0.72rem; color: var(--text-muted); font-family: 'Fira Code', monospace; }

/* ════════════════════════════════════════════════════════════════
   CONTACT / CTA
   ════════════════════════════════════════════════════════════════ */
#contact {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}
#contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 100%, rgba(0,168,255,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.contact-inner {
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
  position: relative;
  z-index: 1;
}
.contact-inner .section-label { justify-content: center; }
.contact-inner .section-label::before { display: none; }
.contact-inner .section-label::after {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--accent-cyan);
}
.contact-inner h2 {
  margin-bottom: 1rem;
}
.contact-inner .section-desc { margin-inline: auto; margin-bottom: 2.5rem; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-field { display: flex; flex-direction: column; gap: 0.4rem; }
.form-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: 'Fira Code', monospace;
}
.form-field input,
.form-field textarea,
.form-field select {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--text-muted); }
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0,168,255,0.12);
}
.form-field select option { background: var(--bg-card); }
.form-field textarea { min-height: 110px; resize: vertical; }

.form-submit {
  width: 100%;
  margin-top: 0.4rem;
}
.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  font-family: 'Fira Code', monospace;
}

/* Alternative contact */
.contact-alt {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
  transition: color var(--transition);
}
.contact-link:hover { color: var(--accent-blue); }
.contact-link svg { flex-shrink: 0; }

/* ════════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════════ */
footer {
  padding-block: 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.footer-logo .footer-ease { color: var(--accent-cyan); }
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: 'Fira Code', monospace;
}
.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}
.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent-blue); }

/* ════════════════════════════════════════════════════════════════
   MODAL
   ════════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 18, 0.85);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 460px;
  width: 100%;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.25s ease;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-close {
  position: absolute;
  top: 1rem; right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  padding: 4px;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--text-primary); }
.modal h3 { margin-bottom: 0.5rem; }
.modal p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 1.5rem; }
.modal .contact-form { gap: 0.8rem; }

/* ════════════════════════════════════════════════════════════════
   ANIMATIONS (scroll-reveal)
   ════════════════════════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp 0.8s ease both; }
.fade-in-1 { animation-delay: 0.1s; }
.fade-in-2 { animation-delay: 0.25s; }
.fade-in-3 { animation-delay: 0.4s; }
.fade-in-4 { animation-delay: 0.6s; }
.fade-in-5 { animation-delay: 0.8s; }

/* ════════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .problem-grid { grid-template-columns: 1fr; }
  .problem-visual { display: none; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(5,10,18,0.97);
    backdrop-filter: blur(16px);
    padding: 1.5rem;
    gap: 1.2rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open a { font-size: 1rem; color: var(--text-primary); }

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

  .footer-inner { flex-direction: column; text-align: center; }

  .hero-stats { gap: 1.5rem; }
}

/* ── Bloch Sphere SVG animation ─────────────────────────────── */
.bloch-sphere-wrap {
  width: 200px;
  height: 200px;
  margin: 2rem auto 0;
}
.bloch-sphere-wrap svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.orbit-ring {
  transform-origin: 100px 100px;
  animation: rotateOrbit 6s linear infinite;
}
.orbit-ring:nth-child(2) { animation-duration: 9s; animation-direction: reverse; }
@keyframes rotateOrbit {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.state-dot { animation: statePulse 2s ease-in-out infinite; }
@keyframes statePulse {
  0%, 100% { r: 5; opacity: 1; }
  50% { r: 7; opacity: 0.7; }
}