:root {
  --bg: #e6e9ef;
  --panel: #f3f5f8;
  --line: #c9d0db;
  --text: #1c2430;
  --muted: #667085;
  --accent: #2f6fed;
  --bad: #c62828;
  --good: #1b8a54;
}
* { box-sizing: border-box; }
body.auth {
  margin: 0; min-height: 100vh; display: grid; place-items: center;
  background: var(--bg); color: var(--text);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  padding: 24px;
}
.card {
  width: min(400px, 94vw);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}
.brand {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 6px;
}
h1 { margin: 0 0 4px; font-size: 20px; }
.lead { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
label {
  display: block; font-size: 10px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px;
}
input, select {
  width: 100%; height: 36px; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; color: var(--text); padding: 0 12px; font: inherit; margin-bottom: 12px;
}
button, .btn-primary {
  width: 100%; height: 36px; border: 0; border-radius: 8px;
  background: var(--accent); color: #fff; font: inherit; font-weight: 600; cursor: pointer;
}
.err { color: var(--bad); font-size: 12px; margin: 0 0 10px; }
.ok { color: var(--good); font-size: 12px; margin: 0 0 10px; }
.foot { margin: 14px 0 0; font-size: 12px; color: var(--muted); text-align: center; }
.foot a { color: var(--accent); text-decoration: none; font-weight: 500; }
.hint { font-size: 12px; color: var(--muted); margin: -4px 0 12px; }