body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  line-height: 1.6;
  background-color: #f8f9fa;
  color: #2c3e50;
}

h1 {
  color: #2c3e50;
  text-align: center;
  border-bottom: 3px solid #3498db;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

h2 {
  color: #34495e;
  border-left: 4px solid #3498db;
  padding-left: 15px;
  margin-top: 30px;
}

h3 {
  color: #2980b9;
  margin-top: 25px;
  margin-bottom: 15px;
}

#currentDate {
  text-align: center;
  font-size: 1.1rem;
  color: #7f8c8d;
  margin: 10px 0;
}

#summary {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin: 20px 0;
}

#summary ul {
  margin: 15px 0;
  padding-left: 20px;
}

#summary li {
  margin: 8px 0;
}

#summary a {
  color: #3498db;
  text-decoration: none;
}

#summary a:hover {
  text-decoration: underline;
}

button {
  background-color: #3498db;
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
  margin: 5px;
  font-size: 14px;
  transition: background-color 0.3s;
}

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

#marketSnapshot, #portfolioRecommendations, #marketNews {
  background: white;
  margin: 20px 0;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.news-list {
  list-style: disc inside;
  padding-left: 15px;
}

section {
  margin-bottom: 30px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: #2c3e50;
}

tr:hover {
  background-color: #f8f9fa;
}

.positive {
  color: #e74c3c;
  font-weight: bold;
}

.negative {
  color: #3498db;
  font-weight: bold;
}

.neutral {
  color: #7f8c8d;
}

.portfolio-group {
  margin: 25px 0;
  padding: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  background-color: #fdfdfd;
}

.portfolio-group .sector {
  margin-left: 4px;
  color: #6b7280;
  font-size: 0.85em;
}

.tooltip {
  display: block;
  color: #6b7280;
  margin-top: 4px;
  font-size: 0.85em;
}

.loading {
  text-align: center;
  color: #7f8c8d;
  font-style: italic;
  padding: 20px;
}

.no-data {
  text-align: center;
  color: #e74c3c;
  padding: 20px;
  background-color: #fdf2f2;
  border-radius: 6px;
  border: 1px solid #f5c6cb;
}

.debug {
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 6px;
  padding: 15px;
  margin: 15px 0;
}

#disclaimer {
  margin: 20px 0;
  padding: 15px;
  border-radius: 6px;
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  color: #856404;
  font-size: 0.9rem;
  line-height: 1.4;
}

.last-updated {
  text-align: center;
  color: #7f8c8d;
  font-size: 0.9rem;
  margin-top: 30px;
  font-style: italic;
  padding: 10px;
  background-color: #f8f9fa;
  border-radius: 5px;
}

.error {
  background-color: #f8d7da;
  color: #721c24;
  padding: 15px;
  border-radius: 5px;
  border: 1px solid #f5c6cb;
  margin: 10px 0;
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  h1 {
    font-size: 1.5rem;
  }

  table {
    font-size: 14px;
  }

  th, td {
    padding: 8px;
    font-size: 13px;
  }

  button {
    padding: 8px 12px;
    font-size: 12px;
  }

  #summary {
    padding: 15px;
  }

  #marketSnapshot, #portfolioRecommendations, #marketNews {
    padding: 15px;
  }
}