:root { color-scheme: light dark; --bg: #f4f4f5; --card: #fff; --ink: #18181b; --muted: #71717a; --line: #d4d4d8; --btn: #27272a; }
@media (prefers-color-scheme: dark) { :root { --bg: #18181b; --card: #232326; --ink: #f4f4f5; --muted: #a1a1aa; --line: #3f3f46; --btn: #f4f4f5; } }
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100svh; display: flex; align-items: center; justify-content: center; padding: 24px 16px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink);
}
.box { width: 100%; max-width: 460px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px 24px; }
.tag { display: inline-block; margin: 0 0 12px; padding: 4px 10px; border: 1px solid var(--line); border-radius: 99px; font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 0 0 6px; font-size: 1.7rem; font-weight: 700; word-break: break-word; }
.lead { margin: 0 0 22px; color: var(--muted); line-height: 1.5; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-size: .9rem; font-weight: 600; }
label span { font-weight: 400; color: var(--muted); }
input, textarea {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px; background: transparent; color: var(--ink);
  font: 400 1rem system-ui, sans-serif;
}
input:focus, textarea:focus { outline: 2px solid var(--muted); outline-offset: 1px; }
textarea { resize: vertical; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
button {
  margin-top: 4px; min-height: 48px; border: 0; border-radius: 10px; background: var(--btn); color: var(--bg);
  font: 600 1rem system-ui, sans-serif; cursor: pointer;
}
button:hover { opacity: .9; }
.small { margin: 16px 0 0; font-size: .8rem; color: var(--muted); text-align: center; }
.done { text-align: center; }
.done a { color: var(--ink); }