.card { padding: 18px; }
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.empty {
  color: var(--muted);
  padding: 30px 0;
}

.toast-stack {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 4000;
  display: grid;
  gap: 10px;
  width: min(360px, calc(100vw - 24px));
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(15, 23, 42, .96);
  color: #e5eefb;
  box-shadow: 0 16px 40px rgba(15, 23, 42, .28);
  backdrop-filter: blur(12px);
  transform: translateX(18px);
  opacity: 0;
  transition: transform .22s ease, opacity .22s ease;
}

.toast.is-visible {
  transform: translateX(0);
  opacity: 1;
}

.toast.is-success {
  border-color: rgba(34, 197, 94, .35);
}

.toast.is-error {
  border-color: rgba(239, 68, 68, .35);
}

.toast-title {
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.2;
}

.toast-message {
  font-size: .82rem;
  line-height: 1.35;
  color: #cbd5e1;
}