:root {
  /* Primary Colors */
  --orange: hsl(26, 100%, 55%);
  --pale-orange: hsl(25, 100%, 94%);

  /* Neutral Colors */
  --very-dark-blue: hsl(220, 13%, 13%);
  --dark-grayish-blue: hsl(219, 9%, 45%);
  --grayish-blue: hsl(220, 14%, 75%);
  --light-grayish-blue: hsl(223, 64%, 98%);
  --white: hsl(0, 0%, 100%);
  --black: hsl(0, 0%, 0%);
}

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

body {
  font-family: 'Kumbh Sans', sans-serif;
  font-size: 16px;
  color: var(--dark-grayish-blue);
  position: relative;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1110px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header Styles */
header {
  height: 112px;
  border-bottom: 1px solid var(--grayish-blue);
}

.nav-wrapper {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.left-nav, .right-nav {
  display: flex;
  align-items: center;
}

.logo {
  margin-right: 56px;
}

.desktop-nav ul {
  display: flex;
  list-style: none;
}

.desktop-nav a {
  color: var(--dark-grayish-blue);
  text-decoration: none;
  padding: 42px 16px;
  display: inline-block;
  position: relative;
}

.desktop-nav a:hover {
  color: var(--very-dark-blue);
}

.desktop-nav a:hover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--orange);
}

.cart-icon {
  position: relative;
  margin-right: 46px;
  cursor: pointer;
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--orange);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  padding: 0 8px;
  border-radius: 8px;
  display: none;
}

.avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
}

.avatar:hover {
  outline: 2px solid var(--orange);
}

/* Product Styles */
.product-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 124px;
  padding: 90px 24px;
}

.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 100%;
  position: relative;
}

.main-image {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  cursor: pointer;
  max-width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.main-image img {
  width: 100%;
  height: auto;
  display: block;
}

.thumbnails {
  display: flex;
  gap: 31px;
}

.thumbnail {
  width: 88px;
  height: 88px;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
}

.thumbnail.active {
  outline: 2px solid var(--orange);
}

.thumbnail.active img {
  opacity: 0.4;
}

.thumbnail:hover img {
  opacity: 0.6;
}

.company {
  color: var(--orange);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

h1 {
  color: var(--very-dark-blue);
  font-size: 44px;
  line-height: 1.1;
  margin-bottom: 32px;
}

.description {
  line-height: 1.6;
  margin-bottom: 28px;
}

.price-container {
  margin-bottom: 32px;
}

.current-price {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.price {
  color: var(--very-dark-blue);
  font-size: 28px;
  font-weight: 700;
  margin-right: 16px;
}

.discount {
  background-color: var(--pale-orange);
  color: var(--orange);
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
}

.original-price {
  color: var(--grayish-blue);
  font-weight: 700;
  text-decoration: line-through;
}

.actions {
  display: flex;
  gap: 16px;
}

.quantity-selector {
  display: flex;
  align-items: center;
  background-color: var(--light-grayish-blue);
  border-radius: 10px;
  padding: 0 16px;
  height: 56px;
}

.minus, .plus {
  background: none;
  border: none;
  cursor: pointer;
  padding: 18px;
}

.quantity {
  font-weight: 700;
  color: var(--very-dark-blue);
  width: 20px;
  text-align: center;
}

.add-to-cart {
  background-color: var(--orange);
  color: var(--white);
  font-weight: 700;
  border: none;
  border-radius: 10px;
  padding: 0 76px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  box-shadow: 0 20px 30px -10px var(--pale-orange);
  transition: opacity 0.2s;
}

.add-to-cart:hover {
  opacity: 0.6;
}

.add-to-cart img {
  filter: brightness(0) invert(1);
}

/* Cart Modal */
.cart-modal {
  position: absolute;
  top: 95px;
  right: 90px;
  width: 360px;
  background-color: var(--white);
  border-radius: 10px;
  box-shadow: 0 20px 50px -20px var(--dark-grayish-blue);
  z-index: 100;
  display: none;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s, transform 0.3s;
}

.cart-modal.active {
  opacity: 1;
  transform: translateY(0);
}

.cart-header {
  padding: 24px;
  border-bottom: 1px solid var(--grayish-blue);
}

.cart-header h3 {
  color: var(--very-dark-blue);
  font-weight: 700;
}

.cart-content {
  padding: 24px;
  min-height: 188px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.empty-cart {
  font-weight: 700;
  color: var(--dark-grayish-blue);
}

/* Lightbox */
.lightbox, .overlay, .mobile-menu {
  display: none;
  pointer-events: none;
}

.lightbox.active, .overlay.active, .mobile-menu.active {
  pointer-events: auto;
}

.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 200;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  visibility: visible;
  opacity: 1;
}

.lightbox-content {
  width: 550px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.close-lightbox {
  position: absolute;
  top: 40px;
  right: calc(50% - 275px);
  background: none;
  border: none;
  cursor: pointer;
}

.close-lightbox img {
  filter: brightness(0) invert(1);
}

.prev-btn, .next-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  background-color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 10;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.prev-btn img, .next-btn img {
  width: 12px;
  height: 18px;
}

.prev-btn {
  left: -28px;
}

.next-btn {
  right: -28px;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
  z-index: 150;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.overlay.active {
  visibility: visible;
  opacity: 1;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  margin-right: 16px;
  cursor: pointer;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 250px;
  height: 100%;
  background-color: var(--white);
  z-index: 300;
  padding: 24px;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  visibility: hidden;
}

.mobile-menu.active {
  transform: translateX(0);
  visibility: visible;
}

.close-menu {
  background: none;
  border: none;
  margin-bottom: 54px;
  cursor: pointer;
}

.mobile-menu nav ul {
  list-style: none;
}

.mobile-menu nav a {
  color: var(--very-dark-blue);
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  padding: 10px 0;
  display: block;
}

.mobile-only {
  display: none;
}

/* Footer */
footer {
  padding: 20px 0;
  text-align: center;
}

/* Media Queries */
@media (max-width: 1110px) {
  .product-container {
    gap: 64px;
  }
}

@media (max-width: 900px) {
  .product-container {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0;
  }

  .desktop-nav, .desktop-only {
    display: none;
  }

  .mobile-menu-toggle, .mobile-only {
    display: block;
  }

  header {
    height: 68px;
    padding: 0 24px;
    border-bottom: none;
    position: relative;
    z-index: 20;
    background-color: var(--white);
  }

  .container {
    padding: 0;
  }

  .main-image {
    border-radius: 0;
    height: auto;
    overflow: visible;
  }

  .main-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
  }

  .product-gallery {
    position: relative;
    overflow: hidden;
  }

  .prev-btn, .next-btn {
    display: flex;
    width: 40px;
    height: 40px;
  }

  .product-details {
    padding: 24px;
  }

  h1 {
    font-size: 28px;
    margin-bottom: 16px;
  }

  .company {
    margin-bottom: 12px;
  }

  .description {
    margin-bottom: 24px;
  }

  .price-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
  }

  .actions {
    flex-direction: column;
  }

  .quantity-selector {
    width: 100%;
    justify-content: space-between;
  }

  .add-to-cart {
    width: 100%;
    justify-content: center;
  }

  .cart-modal {
    width: calc(100% - 16px);
    top: 80px;
    right: 8px;
  }

  .mobile-only.prev-btn {
    left: 16px;
    z-index: 20;
  }

  .mobile-only.next-btn {
    right: 16px;
    z-index: 20;
  }

  /* Fix for mobile navigation buttons */
  .mobile-only.prev-btn img, .mobile-only.next-btn img {
    width: 10px;
    height: 15px;
    display: block;
  }
}