body { max-width: 800px; margin: 0 auto; padding: 2rem 3rem; line-height: 1.6; }

h1 { font-size: 1.9rem; margin-top: 2rem; }
h2 { font-size: 1.5rem;  margin-top: 1.75rem; }
h3 { font-size: 1.25rem; margin-top: 1.5rem; }
h4 { font-size: 1.1rem;  margin-top: 1.25rem; }
h5, h6 { font-size: 1rem; font-weight: 700; margin-top: 1.25rem; }

table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
th, td { padding: 0.5rem 0.75rem; border-bottom: 1px solid #dee2e6; }
thead th { border-bottom: 2px solid #999; text-align: left; }
tbody tr:nth-child(odd) { background-color: #f8f9fa; }