:root { color-scheme: light dark; --fg: #1d1d1f; --bg: #fafaf8; --muted: #6b6b70; --line: #d9d9d4; --accent: #2b5fd9; }
@media (prefers-color-scheme: dark) { :root { --fg: #ececec; --bg: #141416; --muted: #9a9aa0; --line: #33333a; --accent: #7aa2ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 38rem; margin: 0 auto; padding: 3.5rem 1.25rem 4rem; }
h1 { font-size: 2.4rem; letter-spacing: -0.02em; margin: 0; }
h2 { font-size: 1.25rem; margin: 2.5rem 0 0.5rem; }
.lede { color: var(--muted); margin: 0.25rem 0 0; font-size: 1.1rem; }
form { display: grid; gap: 0.9rem; margin-top: 1.25rem; }
label { display: grid; gap: 0.3rem; font-size: 0.9rem; color: var(--muted); }
input, textarea { font: inherit; color: var(--fg); background: transparent; border: 1px solid var(--line); border-radius: 8px; padding: 0.6rem 0.7rem; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
button { justify-self: start; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: 8px; padding: 0.6rem 1.3rem; cursor: pointer; }
button[disabled] { opacity: 0.6; cursor: default; }
#status { min-height: 1.5em; margin: 0; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }