h1 { font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 700; }
h2 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 600; }
h3 { font-size: clamp(1rem, 2vw, 1.25rem); font-weight: 600; }
p { font-size: 0.938rem; color: var(--text-secondary); line-height: 1.7; }
small { font-size: 0.813rem; color: var(--text-muted); }
code, .mono { font-family: var(--font-mono); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }