/* ==========================================================================
   COMPONENTS CSS - TRANG THÔNG TIN ĐIỆN TỬ XÂY DỰNG VÀ PHÁT TRIỂN THƯƠNG HIỆU SẢN PHẨM (EPRODUCT)
   Phiên bản nâng cấp: UI/UX tinh tế, đồng nhất 100%, bảo vệ tránh vỡ layout
   ========================================================================== */

/* 1. TOP BAR */
.site-topbar {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.825rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-topbar a {
  color: rgba(255, 255, 255, 0.88);
}

.site-topbar a:hover {
  color: var(--color-accent);
}

.topbar-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  margin-left: 0.35rem;
  transition: var(--transition-base);
  color: #ffffff;
}

.topbar-social a:hover {
  background: var(--color-accent);
  color: #ffffff;
  transform: translateY(-2px);
}

/* Nút chuyển đổi ngôn ngữ */
.lang-switcher .lang-btn {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
  font-size: 0.775rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  transition: var(--transition-fast);
}

.lang-switcher .lang-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
}

.theme-toggle-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-base);
  font-size: 0.9rem;
}

.theme-toggle-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.16);
  transform: rotate(15deg);
}

/* 2. MAIN NAVBAR & STICKY SHRINK */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1020;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

[data-theme="dark"] .site-header {
  background: var(--color-dark-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header.is-scrolled {
  padding-top: 0.2rem;
  padding-bottom: 0.2rem;
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(14px);
}

[data-theme="dark"] .site-header.is-scrolled {
  background: rgba(18, 33, 24, 0.97);
}

/* Brand Logo */
.navbar-brand-custom {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.navbar-brand-custom .brand-logo-img {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--color-primary), #2d7a50);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  box-shadow: 0 4px 10px rgba(30, 86, 56, 0.25);
  transition: var(--transition-base);
  flex-shrink: 0;
}

.site-header.is-scrolled .navbar-brand-custom .brand-logo-img {
  width: 40px;
  height: 40px;
  font-size: 1.15rem;
}

.brand-title-wrap {
  line-height: 1.2;
}

.brand-title-wrap .brand-agency {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-title-wrap .brand-name {
  font-family: var(--font-serif);
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

[data-theme="dark"] .brand-title-wrap .brand-name {
  color: #8be0b2;
}

/* Navigation Links */
.navbar-nav .nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding: 0.9rem 0.65rem !important;
  position: relative;
  white-space: nowrap;
  transition: var(--transition-base);
}

/* Ẩn caret Bootstrap mặc định trên nav-link dropdown-toggle */
.navbar-nav .nav-link.dropdown-toggle::after {
  display: none !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-primary) !important;
}

[data-theme="dark"] .navbar-nav .nav-link:hover,
[data-theme="dark"] .navbar-nav .nav-link.active {
  color: #a4e5c3 !important;
}

/* Chỉ áp dụng underline cho link đơn (không phải dropdown-toggle) */
.navbar-nav .nav-link:not(.dropdown-toggle)::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2.5px;
  background-color: var(--color-accent);
  transition: var(--transition-base);
  border-radius: 2px;
}

.navbar-nav .nav-link:not(.dropdown-toggle):hover::after,
.navbar-nav .nav-link:not(.dropdown-toggle).active::after {
  width: 24px;
}

/* Underline cho dropdown-toggle link cha */
.navbar-nav .nav-item.dropdown:hover > .dropdown-toggle,
.navbar-nav .nav-link.dropdown-toggle.active {
  color: var(--color-primary) !important;
}

/* Dropdown 2 cấp */
.dropdown-menu-custom {
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.6rem 0;
  min-width: 240px;
  background-color: #ffffff;
  animation: fadeInDown 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] .dropdown-menu-custom {
  background-color: var(--color-dark-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6);
}

.dropdown-menu-custom .dropdown-item {
  padding: 0.6rem 1.35rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-main);
  transition: var(--transition-base);
}

.dropdown-menu-custom .dropdown-item:hover {
  background-color: var(--color-light);
  color: var(--color-primary);
  padding-left: 1.55rem;
}

[data-theme="dark"] .dropdown-menu-custom .dropdown-item:hover {
  background-color: rgba(255, 255, 255, 0.06);
  color: #a4e5c3;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 3. SUB-CATEGORY PILL-SHAPED TAGS */
.pill-tags-wrapper {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  overflow-x: auto;
  padding: 0.5rem 0 1rem 0;
  scrollbar-width: thin;
}

.pill-tags-wrapper::-webkit-scrollbar {
  height: 5px;
}
.pill-tags-wrapper::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.pill-tag-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  background-color: #ffffff;
  color: var(--color-text-main);
  border: 1.5px solid var(--color-border);
  transition: var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.pill-tag-btn:hover,
.pill-tag-btn.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(30, 86, 56, 0.25);
  transform: translateY(-1px);
}

[data-theme="dark"] .pill-tag-btn {
  background-color: var(--color-dark-surface);
  border-color: var(--color-border);
  color: var(--color-text-main);
}

/* 4. NEWS CARDS */
/* Tin Chính (Lead Article) */
.card-news-lead {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

[data-theme="dark"] .card-news-lead {
  background: var(--color-dark-surface);
  border-color: var(--color-border);
}

.card-news-lead:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(30, 86, 56, 0.3);
}

.card-news-lead .card-thumb-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--color-light);
}

.card-news-lead .card-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.card-news-lead:hover .card-thumb-wrap img {
  transform: scale(1.05);
}

.card-news-lead .card-body {
  padding: 1.6rem;
}

.card-news-lead .card-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.85rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-news-lead .card-title a {
  color: var(--color-text-heading);
}

.card-news-lead .card-title a:hover {
  color: var(--color-primary);
}

[data-theme="dark"] .card-news-lead .card-title a {
  color: var(--color-text-heading);
}

.card-news-lead .card-sapo {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 1.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Tin Vừa (Medium News Card) */
.card-news-medium {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  margin-bottom: 1.25rem;
}

[data-theme="dark"] .card-news-medium {
  background: var(--color-dark-surface);
  border-color: var(--color-border);
}

.card-news-medium:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(30, 86, 56, 0.3);
}

.card-news-medium .thumb-wrap {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-light);
}

.card-news-medium .thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card-news-medium:hover .thumb-wrap img {
  transform: scale(1.06);
}

.card-news-medium .card-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-news-medium .card-title a {
  color: var(--color-text-heading);
}

.card-news-medium .card-title a:hover {
  color: var(--color-primary);
}

/* Tin Vắn Thu Nhỏ (Compact News List) */
.card-news-compact {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.card-news-compact:last-child {
  border-bottom: none;
}

.card-news-compact .thumb-mini {
  width: 90px;
  height: 65px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background-color: var(--color-light);
}

.card-news-compact .thumb-mini img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card-news-compact:hover .thumb-mini img {
  transform: scale(1.08);
}

.card-news-compact .compact-title {
  font-size: 0.925rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-news-compact .compact-title a {
  color: var(--color-text-heading);
}

.card-news-compact .compact-title a:hover {
  color: var(--color-primary);
}

/* 5. PRODUCT CARDS (4x2 Grid trên Desktop) */
.card-product-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  transition: var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--shadow-card);
}

[data-theme="dark"] .card-product-item {
  background: var(--color-dark-surface);
  border-color: var(--color-border);
}

.card-product-item:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-hover);
}

.card-product-item .product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: linear-gradient(135deg, var(--color-accent), #e59a1f);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  box-shadow: 0 3px 8px rgba(0,0,0,0.22);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.card-product-item .qr-quick-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  background: #ffffff;
  color: var(--color-dark);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.16);
  cursor: pointer;
  transition: var(--transition-base);
  border: none;
  font-size: 1.1rem;
}

.card-product-item .qr-quick-btn:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: rotate(15deg) scale(1.08);
}

.card-product-item .product-thumb {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--color-light);
  position: relative;
}

.card-product-item .product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.card-product-item:hover .product-thumb img {
  transform: scale(1.06);
}

.card-product-item .card-body {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-product-item .producer-name {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.card-product-item .product-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  line-height: 1.35;
  color: var(--color-text-heading);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-product-item .product-title a {
  color: inherit;
}

.card-product-item .product-title a:hover {
  color: var(--color-primary);
}

.card-product-item .product-actions {
  margin-top: auto;
  display: flex;
  gap: 0.5rem;
}

/* 6. READING PROGRESS & BACK TO TOP BUTTON */
#readingProgressBar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3.5px;
  background: linear-gradient(to right, var(--color-primary), var(--color-accent));
  width: 0%;
  z-index: 9999;
  transition: width 0.1s ease;
}

.btn-back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 46px;
  height: 46px;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0,0,0,0.22);
  cursor: pointer;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition-base);
  font-size: 1.1rem;
}

.btn-back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.btn-back-to-top:hover {
  background-color: var(--color-primary-hover);
  color: #ffffff;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30, 86, 56, 0.35);
}

/* 7. FOOTER (4 Columns) */
.site-footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  padding: 4.5rem 0 1.75rem 0;
  border-top: 4px solid var(--color-accent);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.8);
}

.site-footer a:hover {
  color: var(--color-accent);
  padding-left: 5px;
}

.footer-heading {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.35rem;
  position: relative;
  padding-bottom: 0.55rem;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 2.5px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-stats-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
}

.footer-stats-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.45rem;
  font-size: 0.875rem;
}

.footer-stats-item:last-child {
  margin-bottom: 0;
}

.footer-bottom {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
}

/* 8. PAGINATION HIỆN ĐẠI */
.pagination-custom .page-link {
  color: var(--color-text-main);
  border: 1.5px solid var(--color-border);
  margin: 0 3px;
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.95rem;
  font-weight: 600;
  transition: var(--transition-base);
}

.pagination-custom .page-item.active .page-link {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(30, 86, 56, 0.25);
}

.pagination-custom .page-link:hover {
  background-color: var(--color-primary-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

[data-theme="dark"] .pagination-custom .page-link {
  background-color: var(--color-dark-surface);
  border-color: var(--color-border);
  color: var(--color-text-main);
}