/* Desktop-first enhancements for homepage */

.main-navigation .nav-link {
  color: #fff;
  font-weight: 600;
}

.main-navigation .nav-link:hover {
  color: #ffeddc;
}

/* Desktop: menu ngang */
@media (min-width: 992px) {
  .main-navigation .navbar-nav {
    flex-direction: row;
    gap: 0.75rem;
  }
}

/* Mobile: giữ responsive dạng dọc khi mở menu */
@media (max-width: 991.98px) {
  .main-navigation .navbar-nav {
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0;
  }
}

.home-hero-swiper {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.hero-slide {
  min-height: 420px;
  display: flex;
  align-items: center;
  padding: 2.5rem;
}

.hero-slide-image {
  background-size: cover;
  background-position: center;
}

.hero-slide-gradient {
  background: linear-gradient(120deg, #ff7a18 0%, #ffb347 100%);
}

.hero-slide-gradient-2 {
  background: linear-gradient(120deg, #f857a6 0%, #ff5858 100%);
}

.hero-overlay {
  max-width: 560px;
  color: #fff;
  background: rgba(0, 0, 0, 0.35);
  padding: 1.25rem 1.4rem;
  border-radius: 12px;
}

.hero-overlay h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.hero-overlay p {
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.home-hero-swiper .swiper-button-next,
.home-hero-swiper .swiper-button-prev {
  color: #fff;
}

.home-hero-swiper .swiper-pagination-bullet-active {
  background: #fff;
}

.best-sellers .card,
.featured-books .card {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.best-sellers .card:hover,
.featured-books .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}


nav {
  background-color: #ff6600;
  padding: 0.5rem 1rem;
}
nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
nav ul li a {
  text-decoration: none;
  color: #f4f4f4;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 5px;
}
nav ul li a:hover {
  background-color: #ddd;
}


/* FEATURED BOOKS */
.featured-books {
  padding: 2rem 1rem;
  background-color: #fff8f1;
}
.featured-books h2 {
  text-align: center;
  margin-bottom: 1rem;
}
.book-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.book {
  width: 200px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
}
.book img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}
.book h3 {
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

/* FOOTER */
.footer {
  background: #333;
  color: #fff;
  padding: 2rem 1rem;
}
.footer .footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}
.footer .footer-content .about,
.footer .footer-content .info {
  flex: 1 1 250px;
}
.footer .footer-bottom {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  header .container,
  .footer .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
  }

  .book {
    width: 100%;
    max-width: 300px;
  }

  .row-cols-md-4 > .col {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .hero-slide {
    min-height: 300px;
    padding: 1.25rem;
  }

  .hero-overlay {
    max-width: 100%;
    padding: 1rem;
  }

  .hero-overlay h2 {
    font-size: 1.35rem;
  }

  .hero-overlay p {
    font-size: 0.95rem;
  }
}

@media (max-width: 576px) {
  .card .btn {
    width: 100%;
    margin-top: 0.5rem;
  }

  .modal-dialog {
    margin: 1rem;
  }

  .subscribe-form {
    flex-direction: column;
  }

  .subscribe-form input,
  .subscribe-form button {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .hero-slide {
    min-height: 240px;
  }

  .home-hero-swiper .swiper-button-next,
  .home-hero-swiper .swiper-button-prev {
    display: none;
  }
}