.auth-content {
  display: flex;
  justify-content: center;
  padding-top: 60px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
}

.auth-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.auth-tab {
  flex: 1;
  padding: 10px 0;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font: inherit;
  font-size: 14px;
  color: var(--muted);
  cursor: pointer;
}
.auth-tab.active {
  color: var(--text);
  font-weight: bold;
  border-bottom-color: var(--text);
}

.auth-form.hidden { display: none; }

.auth-field-hint {
  font-size: 11px;
  color: var(--muted);
  margin-top: -4px;
}

.auth-error {
  margin-top: 16px;
  font-size: 13px;
  color: #b91c1c;
  background: #fee2e2;
  padding: 10px 12px;
  border-radius: 6px;
}
.auth-error.hidden { display: none; }

.hidden { display: none !important; }

.signup-unavailable { margin-top: 24px; padding: 16px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; line-height: 1.5; }
.signup-unavailable p { margin: 0 0 10px; }
.signup-unavailable p:last-child { margin-bottom: 0; display: flex; gap: 10px; flex-wrap: wrap; }

.otp-panel { display: grid; gap: 14px; margin-top: 24px; }
.otp-intro { margin: 0; font-size: 14px; line-height: 1.5; color: var(--text); }
.otp-panel form { margin-top: 0; }
#otp-code {
  font-size: 22px;
  letter-spacing: 0.35em;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.otp-actions { display: flex; justify-content: space-between; gap: 12px; }
.link-button {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  text-decoration: underline;
  cursor: pointer;
}
.link-button:disabled { color: var(--muted); text-decoration: none; cursor: default; }

.auth-info {
  margin-top: 16px;
  font-size: 13px;
  color: #15803d;
  background: #dcfce7;
  padding: 10px 12px;
  border-radius: 6px;
}