:root { color-scheme: light dark; --fg: #1e1e1f; --bg: #fbfbfa; --muted: #5d5d60; --red: #dc1f2d; --line: #d8d8d6; }
@media (prefers-color-scheme: dark) { :root { --fg: #f1f1ef; --bg: #1e1e1f; --muted: #a7a7a4; --line: #3a3a3c; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, sans-serif; }
main { max-width: 34rem; margin: 0 auto; padding: 2rem 1rem; }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
label { display: block; margin-top: 1rem; color: var(--muted); }
input { width: 100%; padding: .6rem; font: inherit; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: inherit; }
button { margin-top: 1rem; padding: .7rem 1.2rem; font: inherit; border: 0; border-radius: 6px; background: var(--red); color: #fff; cursor: pointer; }
button:disabled { opacity: .5; cursor: default; }
.words { font-size: 1.35rem; font-weight: 600; letter-spacing: .02em; }
.warn { border-left: 3px solid var(--red); padding-left: .75rem; }
.err { color: var(--red); }
.host, code { color: var(--muted); }