body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #0b1c2d;
  color: #ffffff;
}

.back-nav {
  padding: 16px 10%;
  background: #091825;
}

.back-link {
  color: #1f8fff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s;
}

.back-link:hover {
  color: #5cb0ff;
}

section {
  padding: 60px 10%;
}

.hero {
  background: linear-gradient(135deg, #0b1c2d, #123a63);
}

h1, h2 {
  margin-bottom: 16px;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  margin-bottom: 10px;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  margin-right: 10px;
  text-decoration: none;
  border-radius: 6px;
}

.primary {
  background: #1f8fff;
  color: white;
}

.secondary {
  border: 1px solid #1f8fff;
  color: #1f8fff;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.kpi-card {
  background: #162b40;
  padding: 20px;
  border-radius: 8px;
  text-align: center;
}

.final-cta {
  text-align: center;
  background: #123a63;
}

.exec-dashboard {
  background: #0d2137;
  border-top: 1px solid rgba(31,143,255,0.15);
  border-bottom: 1px solid rgba(31,143,255,0.15);
}

.exec-subtitle {
  color: #6b8aaa;
  margin-bottom: 32px;
  font-size: 1rem;
}

.exec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.exec-panel {
  background: #162b40;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.06);
}

.exec-panel h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #a0b4c8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.exec-panel-wide {
  grid-column: span 2;
}

.chart-wrap {
  height: 240px;
  position: relative;
}

.chart-wrap-wide {
  height: 280px;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: #a0b4c8;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.flow-section {
  background: #162b40;
  border-radius: 12px;
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.06);
}

.flow-section h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #a0b4c8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.flow-chart {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 90px;
  max-width: 110px;
}

.flow-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1f8fff, #00d4aa);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(31,143,255,0.35);
}

.flow-label {
  font-size: 0.75rem;
  color: #a0b4c8;
  text-align: center;
  line-height: 1.3;
}

.flow-arrow {
  color: #1f8fff;
  font-size: 1rem;
  opacity: 0.6;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .exec-grid {
    grid-template-columns: 1fr;
  }

  .exec-panel-wide {
    grid-column: span 1;
  }

  .flow-chart {
    gap: 6px;
  }

  .flow-node {
    min-width: 70px;
    max-width: 85px;
  }

  .flow-number {
    width: 30px;
    height: 30px;
    font-size: 0.75rem;
  }

  .flow-label {
    font-size: 0.65rem;
  }

  section {
    padding: 40px 5%;
  }
}