* { box-sizing: border-box; }
body { margin: 0; background: var(--colorSurface); color: var(--colorInk); font: 16px/1.6 system-ui, sans-serif; }
main { max-width: 760px; margin: 64px auto; padding: 0 24px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 32px; }
h1 { font-size: 24px; margin: 0; } h2 { font-size: 20px; margin: 0; }
section { padding: 32px; border: 1px solid var(--colorBorder); border-radius: 12px; background: var(--colorBg); }
p { color: var(--colorTextSecondary); }
button, select { font: inherit; border-radius: 6px; padding: 8px 16px; border: 1px solid var(--colorBorder); }
button { background: var(--colorAccent); color: var(--colorBg); cursor: pointer; } button:disabled { opacity: .6; cursor: wait; }
:focus-visible { outline: 3px solid var(--colorAccent); outline-offset: 3px; }
[data-state=success] { color: var(--colorSuccessText); } [data-state=failure], [data-state=incompatible] { color: var(--colorFailText); }
output { display: block; overflow-wrap: anywhere; font: 20px/1.6 ui-monospace, monospace; }
@media (max-width: 480px) { main { margin: 24px auto; } section { padding: 20px; } }