body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

#login-card {
  width: 100%;
  max-width: 320px;
  padding: 32px 24px;
  text-align: center;
  opacity: 0;
  transform: translateY(12px) scale(0.98);
  animation: login-card-in 250ms ease-out forwards;
}

@keyframes login-card-in {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

#login-card h1 {
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin: 0 0 24px;
  color: var(--fg);
}

#password-input {
  width: 100%;
  font-size: 1rem;
  padding: 10px 12px;
  margin-bottom: 12px;
  border-radius: 6px;
  border: 1px solid #333;
  background: #1a1a1a;
  color: var(--fg);
}

#password-input.error {
  border-color: #f66;
  animation: login-shake 300ms ease-in-out;
}

@keyframes login-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

#login-submit {
  width: 100%;
  font-size: 1rem;
  padding: 10px 12px;
  border-radius: 6px;
  border: none;
  background: #eee;
  color: #111;
  cursor: pointer;
}

#login-submit:disabled {
  opacity: 0.6;
  cursor: default;
}