:root {
  --brand-primary: #057298;
  --brand-green: #198754;
  --bg-light: #f8f9fa;
}
.circular-section {
  background: var(--bg-light);
  padding: 80px 0;
}

.circle-container {
  position: relative;
  width: 460px;
  height: 460px;
  margin: auto;
}

/* Center */
.center-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 130px;
  height: 130px;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, var(--brand-green), #20c997);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 15px 40px rgba(0,0,0,0.2);
  z-index: 2;
}

.center-core i {
  font-size: 46px;
}

/* Cards */
.step-card {
  position: absolute;
  width: 160px;
  text-align: center;
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  z-index: 2;
}

.step-card i {
  font-size: 28px;
  color: var(--brand-primary);
  margin-bottom: 10px;
}

.step-card h6 {
  font-weight: 600;
  margin-bottom: 0;
}

/* Positions */
.step-1 { top: 0; left: 50%; transform: translateX(-50%); }
.step-2 { top: 50%; right: 0; transform: translateY(-50%); }
.step-3 { bottom: 0; left: 50%; transform: translateX(-50%); }
.step-4 { top: 50%; left: 0; transform: translateY(-50%); }

/* SVG arrows */
svg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.arrow-path {
  fill: none;
  stroke: var(--brand-green);
  stroke-width: 4;
  marker-end: url(#arrowhead);
  stroke-dasharray: 180;
  animation: arrowFlow 2.8s linear infinite;
}

@keyframes arrowFlow {
  from { stroke-dashoffset: 180; }
  to { stroke-dashoffset: 0; }
}

/* Mobile fallback */
@media (max-width: 768px) {
  .circle-container {
    width: 100%;
    height: auto;
  }

  svg {
    display: none;
  }

  .step-card,
  .center-core {
    position: static;
    transform: none;
    margin: 15px auto;
  }
}