.tree-section {
  padding: 60px 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #fff;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}

.section-title-wrapper {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
}

.section-title-line {
  width: 6px;
  height: 40px;
  background-color: #ffe000;
  margin-right: 12px;
}

.section-title {
  font-size: 2rem;
  font-weight: bold;
  color: #0d325b;
  margin: 0;
}

/* Kutu stilleri */
.box {
  background-color: #f8faff;
  border: 2px solid #0d325b;
  border-radius: 10px;
  padding: 15px 20px;
  text-align: center;
  color: #0d325b;
  min-width: 220px;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.box strong {
  font-weight: 700;
  font-size: 1rem;
  display: block;
  margin-bottom: 4px;
}

.box:hover {
  background-color: #0d325b;
  color: #fff;
  border-color: #ffe000;
}

/* Kademe hizalama */
.level {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 20px 0;
}

/* Alt iki kutuyu yatay hizalama */
.level-3 .box-group {
  display: flex;
  gap: 60px;
  margin-top: 10px;
  position: relative;
}

/* Dikey bağlantı çizgisi */
.connector.vertical {
  width: 2px;
  height: 30px;
  background-color: #ccc;
  margin: auto;
}

/* Yatay çizgi */
.horizontal-line {
  position: absolute;
  top: 0;
  left: 10%;
  width: 80%;
  height: 2px;
  background-color: #ccc;
}

/* Responsive */
@media (max-width: 768px) {
  .level-3 .box-group {
    flex-direction: column;
    gap: 20px;
  }

  .horizontal-line {
    display: none;
  }
}