/* Base styles shared across themes */
* {
  box-sizing: border-box;
}

body {
  line-height: 1.6;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
}

a {
  text-decoration: none;
  font-weight: bold;
  transition: all 0.2s ease;
}

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
}

header {
  margin-bottom: 3rem;
  padding-bottom: 1rem;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 2.5rem;
  margin: 0;
}

table {
  width: 100%;
  margin: 2rem 0;
}

th, td {
  padding: 1rem;
  text-align: left;
}

th {
  cursor: pointer;
  position: relative;
}

details {
  margin-bottom: 2rem;
  padding: 1.5rem;
}

summary {
  font-weight: bold;
  cursor: pointer;
  outline: none;
  user-select: none;
}

footer {
  margin-top: 4rem;
  padding-top: 1rem;
  font-size: 0.9rem;
  text-align: center;
}

/* Responsive styles */
@media (max-width: 768px) {
  body {
    padding: 1rem;
  }
  
  header h1 {
    font-size: 1.8rem;
  }
  
  th, td {
    padding: 0.75rem;
  }
}