@import url("https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&family=Roboto:wght@400;700&display=swap");

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

body {
  font-family: "Open Sans", "Roboto", Arial, sans-serif;
  background: #f9f9f9;
  color: #333;
  line-height: 1.5;
}

.page-heading {
  text-align: center;
  font-weight: 600;
  font-size: 36px;
  margin-bottom: 1rem;
}

.container {
  display: flex;
  gap: 1.5rem;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  align-items: flex-start;
}

.product-grid {
  width: 1040px;
  flex: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.product-card {
  background: #fff;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  width: 326px;
}

.product-card:hover {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.product-card img {
  width: 100%;
  height: 326px;
  object-fit: cover;
  display: block;
}

.product-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 1rem 1rem 0.5rem 0;
}

.product-card .price {
  font-size: 18px;
  margin: 0 1rem 0.5rem 0;
  color: #666;
}

.toggle-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  width: 100%;
  padding: 0.75rem 1rem;
  font-weight: 600;
  color: #24272b;
  background: #fff;
  border: 2px solid black;
  height: 52px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.toggle-button:hover {
  background: #000;
  color: #fff;
}

.toggle-button.active {
  background: #444444;
  color: #fff;
}

.toggle-button svg {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
}

.toggle-button svg path {
  fill: currentColor;
}

.bundle-sidebar {
  flex: 1;
  background: #fff;
  padding: 1.5rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 2rem;
  width: 300px;
  border: 3px solid black;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-title {
  font-size: 1.3rem;
  font-weight: 600;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #eee;
  border-radius: 4px;
  overflow: hidden;
  margin: 16px 0 10px;
}
.progress-fill {
  height: 100%;
  background: #000;
  width: 0%;
  transition: width 0.25s ease;
}

.selected-products {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
  width: 100%;
  display: grid;
  grid-template-rows: repeat(3, 88px);
  gap: 0.75rem;
  max-height: calc((88px + 12px) * 3);
  overflow: hidden;
}

.selected-products li {
  display: flex;
  align-items: center;
  background: #fafafa;
  border: 1px dashed rgba(0, 0, 0, 0.06);
  height: 88px;
  min-height: 88px;
  overflow: hidden;
}

.selected-products img.thumb {
  width: 88px;
  height: 88px;
  object-fit: cover;
  margin-right: 22px;
  flex: 0 0 88px;
}

.selected-products li .meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1 1 auto;
  min-width: 0;
}

.selected-products .meta .name {
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-top: 4px;
}

.selected-products .meta .price-small {
  color: #666;
  font-size: 0.9rem;
  margin: 0;
  padding-bottom: 3px;
}

.selected-product-quantity-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  background-color: transparent;
}

.selected-product-quantity-container .qty {
  display: inline-flex;
  gap: 6px;
  border: 1px solid #ebebeb;
  background: #f5f5f5;
  padding: 4px;
  align-items: center;
}

.selected-product-quantity-container .qty button {
  border: none;
  width: 30px;
  height: 30px;
  font-size: 16px;
  background: transparent;
  cursor: pointer;
}

.selected-product-quantity-container svg {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border-style: none;
  background-color: transparent;
}

.remove-item {
  border-style: none;
  background-color: transparent;
}

.selected-products li.empty {
  justify-content: center;
  color: #bbb;
  font-style: italic;
  font-size: 0.95rem;
}

.summary {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.discount,
.subtotal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.discount .label,
.subtotal .label {
  font-weight: 500;
  color: #333;
}

.discount .value,
.subtotal .value {
  font-weight: 600;
  color: #000;
}

.divider {
  border: none;
  border-top: 1px solid #ddd;
}

.add-to-cart {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  padding: 0.75rem;
  font-weight: 600;
  background: #000;
  color: #fff;
  border: none;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.25s ease;
}
.add-to-cart:enabled {
  opacity: 1;
}

.add-to-cart svg {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
}

.add-to-cart .btn-text {
  display: inline-block;
}

@media (max-width: 1024px) {
  .container {
    gap: 1rem;
    padding: 0 1rem;
  }
  .product-grid {
    width: 100%;
    grid-template-columns: repeat(2, 1fr);
  }
  .bundle-sidebar {
    width: 360px;
    position: relative;
    top: auto;
  }
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
    align-items: stretch;
  }
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    width: 100%;
  }
  .bundle-sidebar {
    width: 100%;
    position: relative;
    top: auto;
    margin-top: 1rem;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .product-card {
    width: 100%;
    height: auto;
  }
  .product-card img {
    height: 260px;
  }
  .selected-products {
    gap: 0.5rem;
  }
  .bundle-sidebar {
    padding: 1rem;
  }
  .page-heading {
    font-size: 24px;
  }
}