/* ===== VARIANTES ESTRUCTURALES ===== */

.btn-solid {
  border: none;
  color: var(--si-white);
  box-shadow: var(--si-shadow-sm);
}

.btn-solid:hover {
  transform: translateY(-2px);
  box-shadow: var(--si-shadow-md);
}

.btn-outline {
  background: transparent;
}

.btn-outline:hover {
  transform: translateY(-1px);
}

.btn-soft:hover {
  transform: translateY(-1px);
  box-shadow: var(--si-shadow-sm);
}

.btn-glass {
  background: var(--si-glass-bg);
  border-color: var(--si-glass-border);
  color: var(--si-white);
  backdrop-filter: blur(6px);
}

/* ===== TAMAÑOS ===== */

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

/* ===== EFECTO BRILLO ===== */

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::before {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    120deg,
    rgba(255,255,255,0.15),
    rgba(255,255,255,0.35),
    rgba(255,255,255,0.15)
  );
  transform: skewX(-20deg);
  transition: 0.6s;
}

.btn-glow:hover::before {
  left: 130%;
}