:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --border: #e4e7ec;
  --text: #1a2233;
  --muted: #667085;
  --accent: #6d5df6;
  --ok: #15803d;
  --ok-bg: #dcfce7;
  --bad: #b42318;
  --bad-bg: #fee4e2;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
.wrap {
  max-width: 640px;
  margin: 8vh auto;
  padding: 0 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.06);
}
h1 { margin: 0 0 12px; font-size: 28px; letter-spacing: -0.02em; }
.lead { color: var(--muted); margin: 0 0 20px; }
a { color: var(--accent); }
.form { display: grid; gap: 12px; }
.form label { display: grid; gap: 4px; font-size: 13px; font-weight: 600; color: var(--muted); }
.form input, .form textarea {
  font: inherit;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form button {
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  padding: 10px 16px;
  cursor: pointer;
}
.form button:hover { filter: brightness(1.08); }
.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 999px;
  padding: 3px 10px;
  margin: 0 0 12px;
}
.badge.ok, .notice.ok { color: var(--ok); background: var(--ok-bg); }
.badge.bad { color: var(--bad); background: var(--bad-bg); }
.notice { border-radius: 8px; padding: 8px 12px; font-size: 13px; }
.foot { margin-top: 24px; text-align: center; font-size: 12px; color: var(--muted); }
code { background: #eef0f4; border-radius: 4px; padding: 1px 5px; font-size: 0.9em; }