style.css

/* custom_styles.css */
body {
  font-family: "Roboto", sans-serif;
  background-color: #f0f2f6;
  color: #1e1e1e;
}

.stApp {
  max-width: 1200px;
  margin: 0 auto;
}

h1 {
  color: #2c3e50;
  text-align: center;
  padding: 20px 0;
  font-size: 2.5em;
}

.stTextInput,
.stNumberInput,
.stSelectbox,
.stTextArea {
  background-color: #ffffff;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  padding: 10px;
  margin-bottom: 15px;
}

.stButton > button {
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.stButton > button:hover {
  background-color: #2980b9;
}

.stProgress > div > div > div {
  background-color: #2ecc71;
}

.stExpander {
  background-color: #ffffff;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  margin-bottom: 15px;
}

.stPlotlyChart {
  background-color: #ffffff;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  padding: 10px;
  margin-bottom: 15px;
}

.article-content {
  background-color: #ffffff;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  padding: 20px;
  margin-top: 20px;
  line-height: 1.6;
}

.section-header {
  color: #34495e;
  border-bottom: 2px solid #3498db;
  padding-bottom: 10px;
  margin-top: 30px;
  margin-bottom: 20px;
}

.chart-header {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
  color: #2c3e50;
}