:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --line: #d9e0eb;
  --text: #172033;
  --muted: #667085;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --good: #0f766e;
  --bad: #b42318;
}
.nav-count {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  min-width: 18px;
  height: 18px;
  margin-inline-start: 2px;
  padding: 0 5px;
  border-radius: 9px;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  vertical-align: middle;
}
* { box-sizing: border-box; }
body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 22% 18%, rgba(37, 99, 235, .15), transparent 28%),
    radial-gradient(circle at 82% 82%, rgba(15, 118, 110, .12), transparent 30%),
    var(--bg);
  color: var(--text);
  font: 14px/1.45 Arial, Helvetica, sans-serif;
}
.auth-shell {
  width: min(420px, calc(100vw - 32px));
}
.auth-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 24px 60px rgba(15, 23, 42, .14);
  overflow: hidden;
}
.auth-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  color: #fff;
  background: #111827;
}
.auth-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .08);
  padding: 5px;
}
.auth-head strong {
  display: block;
  font-size: 18px;
  line-height: 1.15;
}
.auth-head span {
  color: #bfdbfe;
  font-size: 12px;
}
form {
  display: grid;
  gap: 13px;
  padding: 20px;
}
label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}
input {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--text);
  font: inherit;
  background: #fff;
}
input:focus {
  outline: 2px solid rgba(37, 99, 235, .22);
  border-color: var(--accent);
}
button {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
.auth-note {
  color: var(--muted);
  font-size: 12px;
}
.auth-message {
  margin: 20px 20px 0;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
}
.auth-message.bad {
  border-color: #fecaca;
  background: #fef2f2;
  color: var(--bad);
}

.auth-message.good {
  border-color: #99f6e4;
  background: #f0fdfa;
  color: var(--good);
}