/* Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --kern-accent: #F59E0B;       /* warm amber gold — primary brand accent */
  --primary-green: #F59E0B;     /* alias — kept for includes not yet migrated */
  --dark-bg: #1C2333;
  --card-bg: #243048;
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #8899aa;
  --border-color: #2e3d52;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background: var(--dark-bg);
  color: var(--text-secondary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Smooth scroll and offset for sticky nav */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Height of sticky nav */
}

/* Make nav placeholder sticky */
#nav-placeholder {
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* Hero Section */
.hero {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl) 2rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero h1 .highlight {
  color: var(--primary-green);
  font-weight: 600;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto var(--spacing-lg) auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-green);
  display: block;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Section */
.section {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl) 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-tag {
  display: inline-block;
  color: var(--kern-accent);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Target Groups Grid */
.target-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.target-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--spacing-md);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.target-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-green);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.15);
}

.target-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-left: auto;
  margin-right: auto;
  color: var(--primary-green);
  transition: all 0.3s ease;
}

.target-icon svg {
  width: 100%;
  height: 100%;
}

.target-card:hover .target-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 2px 8px rgba(245, 158, 11, 0.4));
}

.target-title {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.target-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.connectivity-list {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.connectivity-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.connectivity-badge {
  background: var(--primary-green);
  color: var(--dark-bg);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.85rem;
}

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

.benefit-tag {
  background: rgba(245, 158, 11, 0.1);
  color: var(--primary-green);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-size: 0.875rem;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Value Proposition */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.value-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--spacing-md);
  transition: all 0.3s ease;
}

.value-icon {
  width: 40px;
  height: 40px;
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--primary-green);
  transition: all 0.3s ease;
}

.value-icon svg {
  width: 100%;
  height: 100%;
}

.value-card:hover .value-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 2px 8px rgba(245, 158, 11, 0.4));
}

.value-card h3 {
  color: var(--primary-green);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.value-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Tech Stack */
.tech-stack {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.tech-layers {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.tech-layer {
  background: rgba(245, 158, 11, 0.05);
  border-left: 4px solid var(--primary-green);
  padding: 1rem 1.25rem;
  border-radius: 8px;
}

.tech-layer h4 {
  color: var(--primary-green);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.tech-layer p {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.tech-features {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.tech-feature {
  background: var(--dark-bg);
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(0, 212, 255, 0.1));
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.cta-section h2 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.btn {
  padding: 1rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-primary {
  background: var(--primary-green);
  color: var(--dark-bg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-green);
  border: 2px solid var(--primary-green);
}

.btn-secondary:hover {
  background: rgba(245, 158, 11, 0.1);
  transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-lg) 2rem;
  }
  
  .section {
    padding: var(--spacing-lg) 2rem;
  }
  
  .target-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    gap: var(--spacing-md);
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}


/* ── Split problem / solution rows ─────────────────────────────────────── */
.split-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: var(--spacing-lg);
}

.split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid #2e3d52;
  border-radius: 12px;
  overflow: hidden;
}

.split-problem {
  padding: 1.75rem 2rem;
  background: var(--card-bg);
  border-right: 1px solid #2e3d52;
}

.split-solution {
  padding: 1.75rem 2rem;
  background: #16202f;
  border-left: 3px solid var(--primary-green);
}

.split-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  display: block;
}

.split-problem .split-label { color: var(--text-muted); }
.split-solution .split-label { color: var(--primary-green); }

.split-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.split-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.split-answer {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 680px) {
  .split-row { grid-template-columns: 1fr; }
  .split-problem { border-right: none; border-bottom: 1px solid #2e3d52; }
  .split-solution { border-left: none; border-top: 3px solid var(--primary-green); }
}