@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

:root {
  --main-bg-color: #ffffff;
  --text-primary: #111;
  --text-secondary: #555;
  --text-on-dark: #fff;

  --accent-primary: #2a7a2a;
  --accent-primary-hover: #236423;
  --star-color: #ffc700;

  --bg-light-gray: #f8f8f8;
  --bg-light-gray-hover: #e8e8e8;
  --border-light: #eee;
  --border-medium: #ddd;

  --dark-hover: #333;

  --font-main: 'Inter', sans-serif;

  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --radius-pill: 30px;

  --shadow-sm: 0 10px 25px rgba(0,0,0,0.08);
  --shadow-md: 0 10px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 15px 35px rgba(0,0,0,0.1);
  --shadow-img: 0 12px 25px rgba(0,0,0,0.15);
  --transition-fast: 0.2s;
  --transition-medium: 0.3s;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: var(--main-bg-color);
  color: var(--text-primary);
  text-align: center;
  min-height: 100vh;
  font-family: var(--font-main);
}
body.noScroll {
  overflow: hidden;
}
header {
  width: 100%;
  padding: 20px 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: solid 0.5px var(--text-primary);
}
.logo {
  font-weight: 700;
  font-size: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.logo img {
  width: 20px;
}
nav a {
  margin: 0 15px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition-medium);
}
nav a:hover {
  opacity: 0.6;
}
main {
  margin-top: 70px;
}
h1 {
  font-size: 80px;
  margin-bottom: 50px;
  font-weight: 200;
}
h1 span {
  font-family: var(--font-main);
  font-weight: 800;
  color: var(--text-primary);
}
.cards {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  margin-bottom: 20px;
}
.card {
  width: 350px;
  height: 450px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  transform: rotate(-5deg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium) ease;
}
.card:nth-child(1) { transform: rotate(-5deg); }
.card:nth-child(2) { transform: rotate(-3deg); }
.card:nth-child(3) { transform: rotate(0deg); }
.card:nth-child(4) { transform: rotate(3deg); }
.card:nth-child(5) { transform: rotate(5deg); }
.card:hover {
  transform: translateY(-50px);
}
.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.desc {
  max-width: 600px;
  margin: 1px auto;
  font-size: 15px;
  color: var(--text-secondary);
}
.buttons {
  margin-top: 30px;
  margin-bottom: 90px;
  display: flex;
  justify-content: center;
  gap: 15px;
}
.join {
  background: var(--text-primary);
  color: var(--text-on-dark);
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 15px;
  transition: var(--transition-medium);
  text-decoration: none;
}
.join:hover {
  background: var(--dark-hover);
}
.read {
  background: transparent;
  border: 1px solid #000000;
  color: var(--text-primary);
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 15px;
  transition: var(--transition-medium);
  text-decoration: none;
}
.read:hover {
  background: var(--border-light);
}
nav a.active {
  font-weight: 700;
  text-decoration: none;
}
.catalog, .about, .cart-page {
  padding: 60px 80px;
  text-align: left;
  max-width: 1200px;
  margin: 0 auto;
}
.catalog h1, .favorites-page h1, .cart-page h1 {
  font-size: 40px;
  margin-bottom: 40px;
  font-weight: 300;
  text-align: left;
}
.about h1 {
    font-size: 40px;
    margin-bottom: 40px;
    font-weight: 300;
    text-align: center;
}
.about h2 {
  font-size: 32px;
  font-weight: 300;
  text-align: center;
  margin-top: 60px;
  margin-bottom: 40px;
}
.about-intro {
  font-size: 18px;
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}
.philosophy-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.philosophy-item img {
  height: 50px;
  margin-bottom: 20px;
}
.philosophy-item h3 {
  font-size: 20px;
  margin-bottom: 10px;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
}
.gallery-grid img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  text-align: center;
}
.person img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
}
.person h3 {
  font-size: 20px;
  margin-bottom: 5px;
}
.person p {
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.favorite-book {
  font-style: italic;
  font-size: 14px;
}
.location p {
  text-align: center;
  font-size: 18px;
  margin-bottom: 20px;
}
#map {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.book-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 30px;
  padding: 0;
  margin: 0;
}
.book {
  background: var(--main-bg-color);
  border-radius: var(--radius-lg);
  padding: 0;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium) ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}
.book:hover {
  transform: translateY(-10px);
}
.book img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.book h3 {
  margin: 15px 20px 5px;
  font-size: 15px;
  color: #000000;
  flex-grow: 1;
}
.book p {
  margin: 0 15px 15px;
  font-size: 14px;
  color: var(--text-secondary);
}
.book .author {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.book .book-price {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.book-rating {
  color: var(--star-color);
  font-size: 16px;
  margin-bottom: 15px;
}
.star.filled {
  color: var(--star-color);
}
.star {
  color: #ccc;
}
.book-actions {
  padding: 15px;
  border-top: 1px solid var(--border-light);
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.book-actions a,
.book-actions button {
  width: 100%;
  padding: 12px 0;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}
.open-btn {
  background: var(--text-primary);
  color: var(--text-on-dark);
}
.open-btn:hover {
  background: var(--dark-hover);
}
.remove-fav, .add-fav, .add-to-cart-catalog {
  background: var(--bg-light-gray);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}
.remove-fav:hover, .add-fav:hover, .add-to-cart-catalog:hover {
  background: var(--bg-light-gray-hover);
}
.add-fav.active {
  background: var(--accent-primary);
  color: var(--text-on-dark);
  border-color: var(--accent-primary);
}
.add-fav.active:hover {
  background: var(--accent-primary-hover);
}
.book-page {
  padding: 50px;
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}
.book-card {
  display: flex;
  gap: 40px;
  background: var(--main-bg-color);
}
.book-card img {
  width: 320px;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-img);
  align-self: flex-start;
}
.book-info {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 450px;
}
.book-info h1 {
  font-size: 32px;
  line-height: 1.2;
  margin-bottom: 0;
}
.book-info p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.book-price-lg {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}
.book-page-actions {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}
.book-page-actions button {
  flex: 1;
  padding: 14px 22px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition-medium);
}
#add-to-cart-btn {
  background: var(--accent-primary);
  color: var(--text-on-dark);
}
#add-to-cart-btn:hover {
  background: var(--accent-primary-hover);
}
#fav-btn {
  background: var(--bg-light-gray);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}
#fav-btn:hover {
  background: var(--bg-light-gray-hover);
}
.book-details {
  margin-top: 60px;
}
.tabs {
  border-bottom: 1px solid var(--border-medium);
  margin-bottom: 30px;
}
.tab-link {
  background: none;
  border: none;
  padding: 15px 20px;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-link.active {
  color: var(--text-primary);
  font-weight: 600;
  border-bottom-color: var(--text-primary);
}
.tab-content ul {
  list-style: none;
  padding: 0;
}
.tab-content li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 15px;
}
.tab-content li span {
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
}
.review-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
}
.review-author {
  font-weight: 600;
  margin-bottom: 5px;
}
.review-rating {
  margin-left: 10px;
}
.review-text {
  line-height: 1.6;
  color: var(--text-secondary);
}
.cart-items-list {
  border-top: 1px solid var(--border-medium);
}
.cart-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-medium);
  align-items: center;
}
.cart-item img {
  width: 80px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}
.item-details {
  flex-grow: 1;
}
.item-details h3 {
  font-size: 18px;
  margin-bottom: 5px;
}
.item-details p {
  color: var(--text-secondary);
  font-size: 15px;
}
.item-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.item-actions button {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-medium);
  background: var(--bg-light-gray);
  cursor: pointer;
  font-size: 18px;
}
.item-actions button:hover {
  background: var(--bg-light-gray-hover);
}
.cart-summary {
  margin-top: 40px;
  text-align: right;
}
.cart-summary p {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 20px;
}
.checkout-btn {
  padding: 15px 30px;
  font-size: 18px;
  background: var(--accent-primary);
  color: var(--text-on-dark);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-medium);
}
.checkout-btn:hover {
  background: var(--accent-primary-hover);
}
@keyframes mobile-slideshow {
  0%, 100% { opacity: 0; }
  5%, 20% { opacity: 1; }
  25%, 100% { opacity: 0; }
}
@media (max-width: 1024px) {
  h1 {
    font-size: 60px;
  }
  .cards {
    position: relative;
    height: 400px;
    flex-wrap: nowrap;
    align-items: center;
    perspective: 1000px;
  }
  .card {
    position: absolute;
    width: 300px;
    height: 400px;
    opacity: 0;
    transform: rotate(0deg);
    animation: mobile-slideshow 20s infinite;
  }
  .card:hover {
    transform: translateY(0);
  }
  .card:nth-child(1) { animation-delay: 0s; }
  .card:nth-child(2) { animation-delay: 4s; }
  .card:nth-child(3) { animation-delay: 8s; }
  .card:nth-child(4) { animation-delay: 12s; }
  .card:nth-child(5) { animation-delay: 16s; }

  .catalog, .about, .cart-page {
    padding: 40px;
  }
  .book-page {
    flex-direction: column;
  }
  .book-card {
    flex-direction: column;
    align-items: center;
    padding: 30px;
  }
  .book-card img {
    width: 100%;
    max-width: 300px;
    height: auto;
  }
}
@media (max-width: 768px) {
  body.noScroll {
    overflow: scroll;
  }
  header {
    flex-direction: column;
    gap: 15px;
    padding: 20px;
  }
  .logo {
    width: 100%;
    justify-content: center;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-light);
  }
  nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  nav a {
    margin: 0 5px;
    font-size: 12px;
  }
  main {
    margin-top: 40px;
  }
  h1 {
    font-size: 42px;
    margin-bottom: 30px;
  }
  .cards {
    height: 350px;
  }
  .card {
    width: 250px;
    height: 350px;
  }
  .buttons {
    flex-direction: column;
    gap: 10px;
    margin: 40px 20px;
  }
  .join, .read {
    width: 100%;
  }
  .catalog, .about, .cart-page {
    padding: 30px 20px;
  }
  .catalog h1, .about h1, .favorites-page h1, .cart-page h1 {
    font-size: 32px;
  }
  .philosophy-items, .team-grid {
    grid-template-columns: 1fr;
  }
  .book-list {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
  }
  .book img {
    height: 220px;
  }
  .team {
    flex-direction: column;
    align-items: center;
  }
  .book-page {
    padding: 20px;
  }
  .book-card {
    padding: 0;
    box-shadow: none;
  }
  .book-info h1 {
    font-size: 28px;
  }
  .book-info p {
    font-size: 16px;
  }
  .book-page-actions {
    flex-direction: column;
  }
  #fav-btn {
    width: 100%;
  }
  .book-actions {
    flex-direction: column;
  }
  .cart-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-content {
    flex-direction: column;
    align-items: center;
    padding: 0 10px;
    text-align: center;
  }
  .footer-left, .footer-center, .footer-right {
    margin-bottom: 10px;
  }
}
footer {
  width: 100%;
  background: var(--bg-light-gray);
  border-top: 1px solid var(--border-light);
  padding: 30px 0 20px 0;
  margin-top: 60px;
  font-size: 15px;
  color: var(--text-secondary);
}
.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 0 40px;
}
.footer-right a {
  color: var(--text-secondary);
  text-decoration: none;
  margin-right: 8px;
  transition: color 0.2s;
}
.footer-right a:hover {
  color: var(--accent-primary);
}