:root {
  --primary: #748cabff;
  --primary-dark: #3e5c76ff;
  --secondary: #1d2d44ff;
  --accent: #748cabff;
  --light: #f0ebd8ff;
  --light-gray: #1d2d44ff;
  --mid-gray: #3e5c76ff;
  --dark: #0d1321ff;
  --blue: #1d2d44ff;
  --success: #748cabff;
  --maxwidth: 1200px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html, body {
  height: 100%;
  min-height: 100%;
  margin: 0;
  background: linear-gradient(135deg, #748cabff 0%, #1d2d44ff 100%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
  color: var(--dark);
  line-height: 1.6;
}


/* Frame central modernizado */
.frame {
  width: 95%;
  max-width: var(--maxwidth);
  margin: 20px auto;
  background: var(--primary);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Header moderno */
.header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 2rem;
  color: var(--light);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="%23ffffff20"><polygon points="0,0 1000,50 1000,100 0,100"/></svg>') no-repeat bottom;
}

.brand {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0;
  position: relative;
  z-index: 2;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.brand span {
  color: var(--blue);
}

.tagline {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-top: 0.5rem;
  position: relative;
  z-index: 2;
}

/* Layout principal */
.main {
  display: flex;
  flex: 1;
  gap: 0;
}

/* Sidebar moderna */
.sidebar {
  width: 280px;
  background: var(--light);
  padding: 2rem 1.5rem;
  border-right: 1px solid var(--light-gray);
  position: relative;
}

.sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: -1px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--mid-gray), transparent);
}

.searchbox {
  position: relative;
  margin-bottom: 2rem;
}

.searchbox input {
  color: var(--light);
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border: 2px solid var(--light-gray);
  border-radius: 50px;
  outline: none;
  font-size: 1rem;
  transition: var(--transition);
  background: var(--blue);
}

.searchbox input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.searchbox::before {
  content: '🔍';
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  opacity: 0.5;
}

.categories {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.category-btn {
  background: transparent;
  border: none;
  padding: 1rem 1.5rem;
  text-align: left;
  cursor: pointer;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--dark);
  position: relative;
  overflow: hidden;
}

.category-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary);
  transform: scaleY(0);
  transition: var(--transition);
}

.category-btn:hover {
  color: var(--light);
  background: var(--light-gray);
  transform: translateX(4px);
}

.category-btn:hover::before {
  transform: scaleY(1);
}

.category-btn.active {
  background: var(--primary);
  color: var(--blue);
  box-shadow: var(--shadow);
}

.category-btn.active::before {
  transform: scaleY(1);
  background: var(--accent);
}

/* Conteúdo principal */
.content {
  flex: 1;
  padding: 2rem;
  background: var(--primary);
}

.content-header {
  display: flex;
  justify-content: between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.content-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
  color: var(--dark);
}

.filter-select {
  padding: 0.75rem 1rem;
  border: 2px solid var(--light-gray);
  border-radius: var(--radius);
  background: var(--blue);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.filter-select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Grid de produtos moderno */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Card de produto modernizado */
.card {
  background: var(--blue);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  border: 1px solid var(--light-gray);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--accent);
  color: var(--blue);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  z-index: 2;
}

.card-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--light-gray) 0%, var(--mid-gray) 100%);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.card-img::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.1));
}

.card-body {
  padding: 1.5rem;
  background: var(--blue);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--light);
}

.card-desc {
  flex: 1;
  margin: 0 0 1rem 0;
  font-size: 0.9rem;
  color: var(--primary);
  line-height: 1.5;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.price {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--light);
}

.details {
  background: var(--light);
  color: var(--blue);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid var(--primary);
}

.details:hover {
  background: transparent;
  color: var(--light);
  transform: scale(1.05);
}

/* Página do produto */
.product-main {
  background: var(--primary);
  display: flex;
  gap: 3rem;
  padding: 2rem;
}

.product-left {
  flex: 1;
}

.product-right {
  width: 400px;
  background: var(--light);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.product-media {
  background: var(--light-gray);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
}

.product-media img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.gallery {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.gallery img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.gallery img:hover,
.gallery img.active {
  border-color: var(--accent);
  transform: scale(1.05);
}

.price-large {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.buy-button {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--light);
  border: none;
  padding: 1.25rem 2rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.1rem;
  width: 100%;
  box-shadow: var(--shadow);
}

.buy-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
}

/* Página de agradecimento */
.thankyou {
  padding: 4rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--light) 0%, var(--blue) 100%);
}

.thankyou-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  color: var(--dark);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.back-link:hover {
  gap: 0.75rem;
  color: var(--light);
}

/* Responsividade */
@media (max-width: 1024px) {
  .main {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--light-gray);
  }
  
  .categories {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .category-btn {
    flex: 1;
    min-width: 150px;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .frame {
    margin: 10px auto;
    width: 98%;
  }
  
  .header {
    padding: 1.5rem;
  }
  
  .brand {
    font-size: 2rem;
  }
  
  .product-main {
    flex-direction: column;
    gap: 2rem;
    padding: 1rem;
  }
  
  .product-right {
    width: 100%;
  }
  
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .content-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-select {
    width: 100%;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .gallery {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .gallery img {
    width: 60px;
    height: 60px;
  }
}

/* Animações suaves */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.card, .sidebar, .content-header {
  animation: fadeIn 0.6s ease-out;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}