.auth-page {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 110px 20px 60px;
  background: radial-gradient(ellipse at top, #0a1a36 0%, var(--bg) 60%);
}

.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
}

.auth-card .back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text2);
  margin-bottom: 18px;
}
.auth-card .back:hover { color: var(--accent); }

.auth-card .logo {
  font-size: 28px;
  text-align: center;
  margin-bottom: 4px;
}

.auth-card h2 {
  text-align: center;
  font-size: 14px;
  letter-spacing: 0.22em;
  color: var(--text2);
  margin-bottom: 24px;
}

.auth-card .footer-link {
  text-align: center;
  margin-top: 20px;
  font-size: 12px;
  color: var(--text2);
}

.form-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: var(--red);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 12px;
  margin-bottom: 14px;
  display: none;
}
.form-error.visible { display: block; }

/* Responsive ------------------------------------------------------- */
@media (max-width: 720px) {
  .auth-page              { padding: 90px 14px 50px; }
  .auth-card              { max-width: 100%; }
  .auth-card .card        { padding: 28px 22px; border-radius: 14px; }
  .auth-card .logo        { font-size: 24px; }
  .auth-card h2           { font-size: 12px; letter-spacing: 0.2em; margin-bottom: 20px; }
  .auth-card .back        { margin-bottom: 14px; font-size: 11.5px; }
  .auth-card .footer-link { font-size: 11.5px; }
}
@media (max-width: 420px) {
  .auth-page              { padding: 80px 10px 40px; }
  .auth-card .card        { padding: 22px 18px; }
  .auth-card .logo        { font-size: 20px; }
}