#kbi-app {
  max-width: 900px;
  margin: auto;
  font-family: Arial, sans-serif;
  background: #f7f9fb;
  padding: 20px;
}

.kbi-card {
  background: #fff;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.kbi-title {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
}

.kbi-highlight {
  font-size: 20px;
  font-weight: bold;
}

.kbi-bar {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.kbi-bar-fill {
  height: 8px;
  background: #2c7be5;
  margin-right: 10px;
  border-radius: 4px;
}

.kbi-weak { background: #e5533d; }
.kbi-mid { background: #f6c23e; }
.kbi-strong { background: #1cc88a; }

button {
  background: #000;
  color: #fff;
  padding: 12px;
  border: none;
  cursor: pointer;
  width: 100%;
  border-radius: 6px;
}