/* Base Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #1e1e2f;
  color: #e0e0e0;
  padding: 2rem;
  line-height: 1.6;
}

/* Headings */
h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #ffffff;
}

h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: #ccccff;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #aaaaff;
}

/* Input Section */
#inputs label {
  display: block;
  margin-bottom: 0.75rem;
  font-weight: 500;
  color: #e0e0e0;
}

#inputs input[type="number"],
#inputs input[type="range"] {
  width: 200px;
  padding: 0.4rem;
  margin-left: 1rem;
  background-color: #2c2c3c;
  color: #ffffff;
  border: 1px solid #555;
  border-radius: 4px;
}

#tax_display {
  margin-left: 1rem;
  font-weight: bold;
  color: #66ccff;
}

/* Summary Section */
#summary div {
  margin-bottom: 0.5rem;
  font-size: 1rem;
  background-color: #2a2a3a;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border-left: 5px solid #66ccff;
}

/* Charts Section */
#charts {
  margin-top: 2rem;
}

canvas {
  margin-top: 1rem;
  max-width: 100%;
  background-color: #2c2c3c;
  border: 1px solid #444;
  border-radius: 8px;
  padding: 1rem;
}

/* Responsive Layout */
@media (min-width: 768px) {
  #inputs,
  #summary,
  #charts {
    max-width: 700px;
    margin: 0 auto;
  }
}