html, body { height: 100%; }
body { display: flex; align-items: center; justify-content: center; }
.login-card {
  background: var(--tm-panel);
  border: 1px solid var(--tm-border-soft);
  border-radius: var(--tm-radius-lg);
  box-shadow: var(--tm-shadow-lg);
  padding: 48px 52px;
  text-align: center;
  max-width: 380px;
}
.login-logo { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 8px; }
.login-logo img { width: 40px; height: 40px; color: var(--tm-text); }
.login-logo .plain  { font-family: var(--tm-font-head); font-weight: 700; font-size: 30px; letter-spacing: .02em; }
.login-sub { font-size: 11px; color: var(--tm-text-faint); font-family: var(--tm-font-mono); letter-spacing: .08em; margin-bottom: 34px; }
.login-hint { font-size: 12px; color: var(--tm-text-dim); margin-top: 24px; line-height: 1.5; }
.login-error { font-size: 12px; color: var(--tm-bad); margin-top: 16px; display: none; }
#g-btn { display: flex; justify-content: center; }