body {
  background-image: linear-gradient(rgba(2, 8, 23, 0.8), rgba(2, 8, 23, 0.8)),
    url(bg.webp);
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.glass {
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-hover:hover {
  background: rgba(51, 65, 85, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.liquid-glass-highlight {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(25px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.selection-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.05) 50%, rgba(0, 0, 0, 0.4) 100%);
  backdrop-filter: blur(40px);
  border-radius: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.tab-button {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-active-os {
  background: rgba(100, 140, 200, 0.8);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  color: white;
}

.tab-active-edition {
  background: rgba(30, 70, 140, 0.9);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: white;
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-fade-in {
  animation: fadeIn 0.2s ease-out forwards;
}

.whatsapp-float {
  position: fixed;
  bottom: 100px;
  right: 24px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#side-navbar {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateX(-100%);
}

#side-navbar.open {
  transform: translateX(0);
}

/* ===== MODAL DE PAGO ===== */

@keyframes slideUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.payment-sheet {
  animation: slideUp 0.35s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

@media (min-width: 640px) {
  .payment-sheet {
    animation: fadeInScale 0.2s ease-out forwards;
  }
}

.payment-safe-area {
  height: env(safe-area-inset-bottom, 0px);
  min-height: 8px;
}