/* zip2sign — log in, sign up, password reset and message pages */
body.auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background: radial-gradient(1200px 600px at 15% -10%, var(--violet-100), transparent 60%), var(--bg-soft);
}
.auth-card {
  width: min(440px, 100%);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 34px 32px 30px;
}
.auth-logo { display: inline-flex; text-decoration: none; margin-bottom: 22px; }
.auth-card h1 { font-size: 24px; line-height: 1.25; margin: 0 0 6px; }
.auth-sub { color: var(--muted); margin: 0 0 22px; }
.auth-form { display: grid; gap: 14px; }
.auth-form .btn { width: 100%; height: 44px; margin-top: 4px; }
.auth-row { display: flex; justify-content: space-between; align-items: baseline; }
.auth-row a, .auth-alt a { font-size: 14px; font-weight: 600; text-decoration: none; }
.auth-alt { margin: 20px 0 0; text-align: center; font-size: 14px; color: var(--muted); }
.auth-error {
  margin: 0 0 16px; padding: 10px 12px; border-radius: var(--radius-sm);
  background: var(--pink-soft); color: var(--red); font-size: 14px; font-weight: 500;
}
.auth-hint { margin: -6px 0 0; font-size: 12.5px; color: var(--muted); }
.auth-code { margin: 0 0 4px; font-size: 13px; font-weight: 700; letter-spacing: .08em; color: var(--violet-500); }
.auth-card > .btn { margin-top: 4px; }
@media (max-width: 480px) { .auth-card { padding: 26px 20px 22px; } }