.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  padding: 0.8rem 1.4rem; font-weight: 800; font-size: 1rem; line-height: 1.2;
  border: 2px solid transparent; border-radius: var(--radius-btn);
  cursor: pointer; white-space: nowrap; transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.btn--xl { padding: 1rem 1.8rem; font-size: 1.05rem; }
.btn--block { width: 100%; }

.btn--red { background: var(--color-red); border-color: var(--color-red); color: var(--color-white); }
.btn--red:hover { background: var(--color-red-deep); border-color: var(--color-red-deep); transform: translateY(-2px); }

.btn--ghost { background: transparent; border-color: var(--color-line); color: var(--color-cream); }
.btn--ghost:hover { border-color: var(--color-cream); transform: translateY(-2px); }

.btn--gold { background: var(--color-gold); border-color: var(--color-gold); color: #1a1407; }
.btn--gold:hover { background: #dcbf80; border-color: #dcbf80; transform: translateY(-2px); }

.btn.is-disabled { opacity: 0.4; pointer-events: none; }