/* ═══════════════════════════════════════
   BOTÕES — KonvertAI
═══════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--r-sm);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base), background var(--t-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--c-roxo-l);
  outline-offset: 3px;
}

.btn:active {
  transform: scale(0.97);
}

/* ── Brand (primário) ── */
.btn-brand {
  background: var(--g-brand);
  color: #fff;
  box-shadow: var(--s-brand);
  padding: 0.8rem 1.8rem;
}

.btn-brand::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background var(--t-base);
}

.btn-brand:hover {
  box-shadow: var(--s-brand-l);
  transform: translateY(-1px);
}

.btn-brand:hover::before {
  background: rgba(255, 255, 255, 0.06);
}

/* ── Outline (secundário) ── */
.btn-outline {
  background: transparent;
  color: var(--c-text-1);
  border: 1px solid var(--c-border-p);
  padding: 0.75rem 1.6rem;
}

.btn-outline:hover {
  background: rgba(91, 33, 182, 0.1);
  border-color: var(--c-roxo-l);
  transform: translateY(-1px);
}

/* ── WhatsApp ── */
.btn-wpp {
  background: #16A34A;
  color: #fff;
  box-shadow: 0 8px 24px rgba(22, 163, 74, 0.3);
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
}

.btn-wpp:hover {
  background: #15803D;
  box-shadow: 0 12px 32px rgba(22, 163, 74, 0.4);
  transform: translateY(-1px);
}

/* ── Small variant ── */
.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
}