:root { color-scheme: light dark; font-family: system-ui, sans-serif; }
main { max-width: 26rem; margin: 4rem auto; padding: 0 1rem; line-height: 1.5; }
.brand { font-weight: 700; letter-spacing: 0.02em; }
label { display: block; margin-top: 1rem; }
input { width: 100%; padding: 0.6rem; font-size: 1.1rem; box-sizing: border-box; }
button { margin-top: 0.8rem; padding: 0.6rem 1rem; font-size: 1rem; cursor: pointer; }
.small { font-size: 0.85rem; opacity: 0.75; }
form.inline { display: inline; }