* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Poppins', sans-serif;
  scroll-behavior: smooth;
  color: white;
  background-color: black;
}

#topbar {
  transition: opacity 0.4s ease, transform 0.4s ease;
}
#topbar.hide {
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
}

#navbar {
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
  background: transparent;
}

.navbar-scrolled {
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0)) !important;
  box-shadow: none;
}

nav a {
  font-weight: 300;
  font-size: 0.95rem;
  transition: color 0.3s;
}
nav a:hover {
  color: #ccc;
}

.product-card {
  transition: transform 0.5s ease;
  border-radius: 1rem;
  overflow: hidden;
  position: relative;
}

.product-card:hover {
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.zoom-bg {
  transition: transform 0.5s ease;
  will-change: transform;
  object-fit: cover;
  z-index: 0;
}

.product-card:hover .zoom-bg {
  transform: scale(1.05);
}

.product-card > div {
  position: relative;
  z-index: 1;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease forwards;
}

#carousel::-webkit-scrollbar {
  display: none;
}

.social-icon {
  width: 32px;
  height: 32px;
  transition: transform 0.2s ease;
}
.social-icon:hover {
  transform: scale(1.1);
}

.opacity-0 {
  opacity: 0;
}

.opacity-100 {
  opacity: 1;
}

.transition-opacity {
  transition: opacity 0.5s ease-in-out;
}

.hidden {
  display: none;
}

.selected {
  border: 2px solid #000;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem; 
}

.color-grid label {
  width: 2rem;
  height: 2rem;    
  border-radius: 0.25rem;
  cursor: pointer;
  border: 2px solid transparent;
  display: inline-block;
}

.color-grid input[type="radio"] {
  display: none;
}

.color-grid label.selected {
  border-color: black;
}

.upload-box {
  display: inline-block;
  padding: 1rem;
  border: 2px dashed #999;
  border-radius: 0.375rem; 
  cursor: pointer;
  width: 100%;
  text-align: center;
  font-size: 0.875rem; 
  color: #4b5563;
}

.simulated-3d-preview {
  background-color: #f3f4f6; 
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4b5563;
}

#seccion-ropa .text-xl {
  letter-spacing: 0.05em;
}

#seccion-ropa .bg-futuro {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
#seccion-ropa .bg-futuro:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 255, 255, 0.2);
}


@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}