/* ═══════════════════════════════════════════
   EL EFECTO DE VIDRIO TRANSPARENTE
  se llama Glassmorphism. Es para que las cosas
   parezcan de cristal y se vea lo que hay atrás pero borroso.
   ═══════════════════════════════════════════ */

/* Esta es la base para que todo parezca vidrio */
.glass,
.product-card,
.carousel-card,
.site-header,
.drawer,
.form-card,
.summary-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(1.6);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.6);
  border: 1px solid var(--glass-border);
  box-shadow:
    var(--glass-shadow),
    inset 0 1px 0 var(--glass-highlight);
  position: relative;
  z-index: 1;
  transition: box-shadow var(--t-med) ease, background var(--t-med) ease;
}

/* Le pongo un brillo en las orillas para que parezca cristal de verdad */
.glass::before,
.product-card::before,
.carousel-card::before,
.drawer::before,
.form-card::before,
.summary-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(168deg,
      rgba(255, 255, 255, 0.5) 0%,
      rgba(255, 255, 255, 0.18) 15%,
      transparent 35%,
      transparent 65%,
      rgba(255, 255, 255, 0.08) 85%,
      rgba(255, 255, 255, 0.25) 100%);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: -1;
}

/* Lo mismo pero para cuando está en modo oscuro, los brillos son más suaves */
[data-theme="dark"] .glass::before,
[data-theme="dark"] .product-card::before,
[data-theme="dark"] .carousel-card::before,
[data-theme="dark"] .drawer::before,
[data-theme="dark"] .form-card::before,
[data-theme="dark"] .summary-card::before {
  background: linear-gradient(168deg,
      rgba(255, 255, 255, 0.12) 0%,
      rgba(255, 255, 255, 0.04) 15%,
      transparent 35%,
      transparent 65%,
      rgba(255, 255, 255, 0.03) 85%,
      rgba(255, 255, 255, 0.08) 100%);
}

/* Mis botones también quiero que parezcan de cristal */
.btn,
.cart-btn,
.add-btn,
.icon-btn,
.qty-btn,
.close-btn {
  position: relative;
  overflow: hidden;
  z-index: 1;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  box-shadow:
    0 2px 8px rgba(20, 22, 42, 0.06),
    inset 0 1px 0 var(--glass-highlight);
  color: var(--gray-800);
  transition:
    transform 0.2s var(--ease-out-expo),
    background 0.2s ease,
    box-shadow 0.2s ease;
}

/* Un brillito extra para los botones */
.btn::before,
.cart-btn::before,
.add-btn::before,
.icon-btn::before,
.qty-btn::before,
.close-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(168deg,
      rgba(255, 255, 255, 0.55) 0%,
      rgba(255, 255, 255, 0.15) 20%,
      transparent 40%,
      transparent 60%,
      rgba(255, 255, 255, 0.1) 80%,
      rgba(255, 255, 255, 0.4) 100%);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: -1;
}

/* Los botones que más importan, los puse de color rosa */
.btn-primary,
.cart-btn,
.add-btn {
  background: linear-gradient(135deg, var(--pink-main), var(--pink-dark));
  color: #FAFBFC;
  border-color: transparent;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
  box-shadow:
    0 4px 16px var(--pink-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Qué pasa cuando pasas el mouse por encima de los botones */
.btn:hover,
.icon-btn:hover,
.qty-btn:hover,
.close-btn:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.55);
  box-shadow:
    0 8px 20px rgba(20, 22, 42, 0.1),
    inset 0 1px 0 var(--glass-highlight);
}

.btn-primary:hover,
.cart-btn:hover,
.add-btn:hover {
  background: linear-gradient(135deg, var(--pink-dark), var(--pink-main));
  box-shadow:
    0 8px 24px var(--pink-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* Cuando haces clic en un botón, se hunde un poquito */
.btn:active,
.icon-btn:active {
  transform: translateY(2px) scale(0.95);
  transition-duration: 0.05s;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Un efecto raro de refracción, todavía no sé si se nota mucho pero ahí está */
.glass-refraction {
  filter: url(#liquid-refraction);
}

/* Si el navegador es viejo y no entiende lo de los filtros, le pongo un color sólido */
@supports not (backdrop-filter: blur(1px)) {

  .glass,
  .product-card,
  .carousel-card,
  .site-header,
  .drawer,
  .form-card,
  .summary-card {
    background: rgba(255, 255, 255, 0.88);
  }

  [data-theme="dark"] .glass,
  [data-theme="dark"] .product-card,
  [data-theme="dark"] .carousel-card,
  [data-theme="dark"] .site-header,
  [data-theme="dark"] .drawer,
  [data-theme="dark"] .form-card,
  [data-theme="dark"] .summary-card {
    background: rgba(28, 31, 50, 0.92);
  }

  .btn,
  .icon-btn,
  .qty-btn,
  .close-btn {
    background: rgba(255, 255, 255, 0.9);
  }

  .btn-primary,
  .cart-btn,
  .add-btn {
    background: var(--pink-main);
  }
}