body { font-family: system-ui, sans-serif; max-width: 42rem; margin: 2rem auto; padding: 0 1rem; line-height: 1.6; color: #1a1a1a; }
header h1 { margin-bottom: 0.25rem; }
section { margin: 2rem 0; }
small { color: #666; font-weight: normal; }
form { display: grid; gap: 0.75rem; }
input, select, button { font: inherit; padding: 0.5rem; }
button { cursor: pointer; }
footer { margin-top: 3rem; border-top: 1px solid #ddd; padding-top: 1rem; color: #666; }