.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border-radius: 999px;
  padding: 0.85rem 1.9rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform var(--transition-base),
    box-shadow var(--transition-base), background var(--transition-base),
    color var(--transition-base);
}
.btn--primary {
  color: var(--bg-1);
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  box-shadow: 0 0 25px rgba(0, 230, 255, 0.35);
  border: none;
}
.btn--primary:hover,
.btn--primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(182, 76, 255, 0.45);
}
.btn--secondary {
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(0, 230, 255, 0.5);
  backdrop-filter: blur(10px);
}
.btn--secondary:hover,
.btn--secondary:focus-visible {
  border-color: rgba(182, 76, 255, 0.8);
  color: var(--cyan);
  box-shadow: 0 0 25px rgba(0, 230, 255, 0.25);
}
.btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.btn[disabled] {
  cursor: wait;
  opacity: 0.65;
}
.btn__spinner {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 2px solid rgba(6, 5, 26, 0.35);
  border-top-color: var(--bg-1);
  display: none;
}
.btn--loading .btn__spinner {
  display: inline-block;
  animation: spinner 0.9s linear infinite;
}
.btn--loading .btn__label {
  opacity: 0;
}
@keyframes spinner {
  to {
    transform: rotate(360deg);
  }
}