:root { --bg: #f6f6f4; --fg: #16181d; --muted: #5b616e; --line: #d5d7dc; --accent: #16181d; --err: #b42318; color-scheme: light; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 560px; margin: 0 auto; padding: 32px 16px 48px; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 8px; }
.hint { color: var(--muted); margin: 0 0 24px; }
.err { color: var(--err); font-weight: 600; }
label { display: block; font-weight: 600; margin-bottom: 20px; }
select, input, textarea { display: block; width: 100%; margin-top: 6px; padding: 12px; font: inherit; font-weight: 400; color: var(--fg); background: #fff; border: 1px solid var(--line); border-radius: 10px; }
textarea { resize: vertical; }
select:focus, input:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button { width: 100%; padding: 14px; font: inherit; font-weight: 700; color: #fff; background: var(--accent); border: 0; border-radius: 10px; cursor: pointer; }
button:disabled { opacity: .5; }