body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f5f7fb;
  color: #111;
}

.topbar {
  display: flex;
  justify-content: space-between;
  padding: 15px 25px;
  background: white;
  border-bottom: 1px solid #ddd;
}

.topbar nav a {
  margin-left: 15px;
  text-decoration: none;
  color: #333;
}

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

.intro {
  margin: 20px 0;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.inputs label {
  display: block;
  margin-top: 10px;
  font-size: 14px;
}

.inputs input {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

button {
  margin-top: 20px;
  width: 100%;
  padding: 10px;
  background: #1f7aec;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #155fd1;
}

.result-box {
  margin-bottom: 15px;
  padding: 10px;
  border-left: 4px solid #ddd;
}

.highlight {
  border-left: 4px solid #1f7aec;
  background: #f0f6ff;
}

.info {
  margin-top: 30px;
  background: white;
  padding: 20px;
  border-radius: 10px;
}