body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(129, 140, 248, 0.3), transparent 35%),
    radial-gradient(circle at 85% 80%, rgba(45, 212, 191, 0.26), transparent 40%),
    linear-gradient(160deg, #334155 0%, #1e293b 45%, #0f172a 100%);
}

#appShell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#loginMain {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

#loginCard {
  width: 100%;
  max-width: 28rem;
}

#loginCard .card-title {
  width: 100%;
  justify-content: center;
  text-align: center;
}

#loginForm {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

#submitBtn {
  height: 3rem;
  min-height: 3rem;
  line-height: 1.25rem;
  font-size: 1.2rem;
  font-weight: 600;
  transform: none !important;
  transition: none !important;
  animation: none !important;
}

#submitBtn:disabled {
  opacity: 0.85;
}

#submitBtn:hover,
#submitBtn:active,
#submitBtn:focus-visible {
  transform: none !important;
  transition: none !important;
  animation: none !important;
}

#submitBtn:disabled {
  background-color: #3b82f6 !important;
  border-color: #3b82f6 !important;
  color: rgba(255, 255, 255, 0.9) !important;
  opacity: 0.7 !important;
}

#message {
  min-height: 1.5rem;
  line-height: 1.5rem;
  text-align: center;
}

#copyright {
  text-align: center;
  padding-bottom: 1.5rem;
  color: rgba(226, 232, 240, 0.4);
}