/* ============================================
   PRODUCTS PAGE - MODERN 2-COLUMN LAYOUT
   Clean Design with Sidebar Navigation
============================================ */

:root {
  --primary: #2563eb;
  --secondary: #64748b;
  --dark: #1e293b;
  --light: #f8fafc;
  --border: #e2e8f0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* ============================================
   PAGE HEADER
============================================ */
.product-page-header {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.product-page-header::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.header-icon {
  width: 70px;
  height: 70px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 20px;
}

.header-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  margin-bottom: 15px;
  letter-spacing: -0.5px;
}

.header-subtitle {
  font-size: 18px;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.95;
  line-height: 1.7;
}

/* ============================================
   MAIN CONTAINER
============================================ */
.product-page-container {
  background: #fff;
  padding: 50px 0;
  min-height: 70vh;
}

/* ============================================
   SIDEBAR
============================================ */
.product-sidebar {
  position: sticky;
  top: 20px;
}

.sidebar-widget {
  background: #fff;
  border-radius: 16px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--border);
}

.widget-title i {
  font-size: 24px;
  color: var(--primary);
}

.widget-title h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin: 0;
}

/* Search Form */
.search-form {
  margin: 0;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  gap: 0;
  width: 100%;
}

.search-input {
  flex: 1;
  min-width: 0;
  padding: 12px 15px;
  border: 2px solid var(--border);
  border-radius: 10px 0 0 10px;
  font-size: 15px;
  transition: all 0.3s;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-button {
  width: 50px;
  min-width: 50px;
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--primary);
  border-radius: 0 10px 10px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s;
}

.search-button:hover {
  background: #1e40af;
  border-color: #1e40af;
}

/* Category List */
.category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-item {
  margin-bottom: 8px;
}

.category-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 15px;
  background: #fff;
  border-radius: 10px;
  color: var(--dark);
  text-decoration: none;
  transition: all 0.3s;
  border: 2px solid var(--border);
}

.category-item a:hover {
  background: #fff;
  border-color: var(--primary);
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
}

.category-item.active a {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.category-item a i {
  font-size: 18px;
  color: var(--secondary);
}

.category-item.active a i {
  color: #fff;
}

.category-name {
  flex: 1;
  font-size: 15px;
}

.category-count {
  background: rgba(0, 0, 0, 0.05);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--secondary);
}

.category-item.active .category-count {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Clear Filter */
.clear-filter-widget {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  padding: 20px;
}

.clear-filter-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px;
  background: rgba(255, 255, 255, 0.95);
  color: #dc2626;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
}

.clear-filter-button:hover {
  background: #fff;
  transform: scale(1.02);
}

.clear-filter-button i {
  font-size: 20px;
}

/* Contact Widget */
.contact-widget {
  background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
  color: #fff;
  text-align: center;
}

.contact-widget .contact-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  margin-bottom: 15px;
}

.contact-widget h4 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.contact-widget p {
  font-size: 14px;
  opacity: 0.95;
  margin-bottom: 20px;
  line-height: 1.6;
}

.contact-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: #fff;
  color: var(--primary);
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
}

.contact-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* ============================================
   MAIN CONTENT
============================================ */
.product-content {
  background: transparent;
}

/* Results Header */
.results-header {
  background: #fff;
  border-radius: 12px;
  padding: 20px 25px;
  margin-bottom: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  box-shadow: var(--shadow-sm);
}

.results-info {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--secondary);
  font-size: 15px;
}

.results-info i {
  font-size: 20px;
  color: var(--primary);
}

.search-keyword {
  font-size: 14px;
  color: var(--secondary);
}

.search-keyword strong {
  color: var(--dark);
}

/* ============================================
   PRODUCT GRID
============================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

/* Product Card */
.product-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s;
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-link-wrapper {
  display: block;
  text-decoration: none;
  color: inherit;
}

.product-image-container {
  position: relative;
  padding-top: 75%;
  overflow: hidden;
  background: #fff;
}

.product-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.product-card:hover .product-image {
  transform: scale(1.1);
}

.product-no-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  color: #cbd5e1;
}

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.overlay-button {
  background: #fff;
  color: var(--dark);
  padding: 12px 24px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  transform: translateY(20px);
  transition: transform 0.3s;
  box-shadow: var(--shadow-md);
}

.product-card:hover .overlay-button {
  transform: translateY(0);
}

.product-category-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--primary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.product-details {
  padding: 20px;
}

.product-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 12px 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 50px;
}

.product-description {
  font-size: 14px;
  color: var(--secondary);
  line-height: 1.6;
  margin: 0 0 15px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-footer {
  padding-top: 15px;
  border-top: 1px solid var(--border);
}

.view-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: gap 0.3s;
}

.product-card:hover .view-more {
  gap: 10px;
}

/* ============================================
   EMPTY STATE
============================================ */
.empty-state {
  background: #fff;
  border-radius: 16px;
  padding: 80px 40px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.empty-icon {
  font-size: 80px;
  color: #cbd5e1;
  margin-bottom: 20px;
}

.empty-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.empty-text {
  font-size: 16px;
  color: var(--secondary);
  margin-bottom: 25px;
  line-height: 1.7;
}

.empty-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
}

.empty-button:hover {
  background: #1e40af;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============================================
   RESPONSIVE
============================================ */
/* Tablet (768px - 991px) */
@media (max-width: 991.98px) {
  .product-page-header {
    padding: 50px 0;
  }

  .header-icon {
    width: 60px;
    height: 60px;
    font-size: 28px;
    margin-bottom: 18px;
  }

  .header-title {
    font-size: 38px;
    margin-bottom: 12px;
  }

  .header-subtitle {
    font-size: 16px;
    max-width: 650px;
    line-height: 1.6;
  }

  /* Sidebar - Tablet */
  .product-sidebar {
    position: static;
    margin-bottom: 30px;
  }

  .sidebar-widget {
    padding: 22px;
    margin-bottom: 22px;
  }

  .widget-title {
    margin-bottom: 18px;
    padding-bottom: 14px;
  }

  .widget-title i {
    font-size: 22px;
  }

  .widget-title h3 {
    font-size: 17px;
  }

  /* Search Widget - Tablet */
  .search-input {
    padding: 11px 14px;
    font-size: 14px;
  }

  .search-button {
    width: 48px;
    min-width: 48px;
    font-size: 17px;
  }

  /* Category List - Tablet */
  .category-item {
    margin-bottom: 7px;
  }

  .category-item a {
    padding: 11px 14px;
    gap: 11px;
  }

  .category-item a i {
    font-size: 17px;
  }

  .category-name {
    font-size: 14px;
  }

  .category-count {
    padding: 3px 9px;
    font-size: 12px;
  }

  /* Clear Filter - Tablet */
  .clear-filter-widget {
    padding: 18px;
  }

  .clear-filter-button {
    padding: 11px;
    font-size: 14px;
  }

  .clear-filter-button i {
    font-size: 18px;
  }

  /* Contact Widget - Tablet */
  .contact-widget {
    padding: 22px;
    border-radius: 14px;
  }

  .contact-widget .contact-icon {
    width: 55px;
    height: 55px;
    font-size: 28px;
    margin-bottom: 14px;
  }

  .contact-widget h4 {
    font-size: 18px;
    margin-bottom: 9px;
  }

  .contact-widget p {
    font-size: 13px;
    margin-bottom: 18px;
  }

  .contact-button {
    padding: 11px 22px;
    font-size: 14px;
    gap: 7px;
    border-radius: 9px;
  }

  /* Product Grid - Tablet */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

/* Mobile (< 768px) */
@media (max-width: 767.98px) {
  .product-page-header {
    padding: 40px 20px;
  }

  .header-icon {
    width: 55px;
    height: 55px;
    font-size: 26px;
    margin-bottom: 15px;
  }

  .header-title {
    font-size: 30px;
    margin-bottom: 12px;
    line-height: 1.2;
  }

  .header-subtitle {
    font-size: 15px;
    max-width: 100%;
    padding: 0 10px;
    line-height: 1.6;
  }

  .product-page-container {
    padding: 30px 0;
  }

  /* Sidebar - Mobile */
  .product-sidebar {
    margin-bottom: 25px;
  }

  .sidebar-widget {
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 14px;
  }

  .widget-title {
    margin-bottom: 16px;
    padding-bottom: 12px;
    gap: 9px;
  }

  .widget-title h3 {
    font-size: 16px;
  }

  .widget-title i {
    font-size: 20px;
  }

  /* Search Widget - Mobile */
  .search-input {
    padding: 11px 13px;
    font-size: 14px;
    border-radius: 10px 0 0 10px;
  }

  .search-input::placeholder {
    font-size: 13px;
  }

  .search-button {
    width: 48px;
    min-width: 48px;
    font-size: 17px;
    border-radius: 0 10px 10px 0;
  }

  /* Category List - Mobile */
  .category-item {
    margin-bottom: 6px;
  }

  .category-item a {
    padding: 11px 13px;
    font-size: 14px;
    gap: 10px;
    border-radius: 9px;
  }

  .category-item a i {
    font-size: 16px;
  }

  .category-name {
    font-size: 14px;
  }

  .category-count {
    padding: 2px 8px;
    font-size: 12px;
    border-radius: 10px;
  }

  /* Clear Filter - Mobile */
  .clear-filter-widget {
    padding: 16px;
    border-radius: 14px;
  }

  .clear-filter-button {
    padding: 11px;
    font-size: 14px;
    border-radius: 9px;
    gap: 8px;
  }

  .clear-filter-button i {
    font-size: 18px;
  }

  /* Contact Widget - Mobile */
  .contact-widget {
    padding: 20px;
    border-radius: 14px;
    text-align: center;
  }

  .contact-widget .contact-icon {
    width: 50px;
    height: 50px;
    font-size: 26px;
    margin: 0 auto 12px;
  }

  .contact-widget h4 {
    font-size: 17px;
    margin-bottom: 8px;
  }

  .contact-widget p {
    font-size: 13px;
    margin-bottom: 16px;
    line-height: 1.5;
  }

  .contact-button {
    padding: 11px 20px;
    font-size: 14px;
    gap: 6px;
    border-radius: 9px;
  }

  .contact-button i {
    font-size: 16px;
  }

  .results-header {
    padding: 15px 20px;
  }

  /* Product Grid - Mobile: 2 columns */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  /* Product Card - Mobile optimization */
  .product-card {
    border-radius: 12px;
  }

  .product-image-container {
    padding-top: 100%; /* Square ratio for mobile */
  }

  .product-details {
    padding: 12px;
  }

  .product-title {
    font-size: 14px;
    line-height: 1.3;
    margin-bottom: 6px;
  }

  .product-desc {
    font-size: 12px;
    line-height: 1.4;
    -webkit-line-clamp: 2;
  }

  .product-category {
    font-size: 10px;
    padding: 3px 8px;
  }

  .view-more {
    font-size: 12px;
  }

  .empty-state {
    padding: 60px 30px;
  }

  .empty-icon {
    font-size: 60px;
  }

  .empty-title {
    font-size: 20px;
  }
}

/* Small Mobile (< 576px) */
@media (max-width: 575.98px) {
  .product-page-header {
    padding: 35px 15px;
  }

  .header-icon {
    width: 50px;
    height: 50px;
    font-size: 24px;
  }

  .header-title {
    font-size: 26px;
    line-height: 1.3;
  }

  .header-subtitle {
    font-size: 14px;
    line-height: 1.7;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .widget-title h3 {
    font-size: 15px;
  }

  .widget-title i {
    font-size: 19px;
  }

  /* Search Widget - Small Mobile */
  .search-input-wrapper {
    flex-wrap: nowrap;
    width: 100%;
  }

  .search-input {
    min-width: 0;
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    border-radius: 9px 0 0 9px;
  }

  .search-input::placeholder {
    font-size: 12px;
  }

  .search-button {
    width: 46px;
    min-width: 46px;
    font-size: 16px;
    border-radius: 0 9px 9px 0;
  }

  /* Category List - Small Mobile */
  .category-item {
    margin-bottom: 5px;
  }

  .category-item a {
    padding: 10px 12px;
    font-size: 13px;
    gap: 9px;
    border-radius: 8px;
  }

  .category-item a i {
    font-size: 15px;
  }

  .category-name {
    font-size: 13px;
  }

  .category-count {
    padding: 2px 7px;
    font-size: 11px;
  }

  /* Clear Filter - Small Mobile */
  .clear-filter-widget {
    padding: 15px;
    border-radius: 12px;
  }

  .clear-filter-button {
    padding: 10px;
    font-size: 13px;
    border-radius: 8px;
  }

  .clear-filter-button i {
    font-size: 17px;
  }

  /* Contact Widget - Small Mobile */
  .contact-widget {
    padding: 18px;
    border-radius: 12px;
  }

  .contact-widget .contact-icon {
    width: 48px;
    height: 48px;
    font-size: 24px;
    margin: 0 auto 10px;
  }

  .contact-widget h4 {
    font-size: 16px;
    margin-bottom: 7px;
  }

  .contact-widget p {
    font-size: 12px;
    margin-bottom: 14px;
  }

  .contact-button {
    padding: 10px 18px;
    font-size: 13px;
    gap: 5px;
    border-radius: 8px;
  }

  .contact-button i {
    font-size: 15px;
  }
}

.product-card-modern:hover .product-btn-view {
  transform: translateY(0);
}

.product-btn-view:hover {
  background: var(--primary-color);
  color: var(--white);
}

.product-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--white);
  color: var(--primary-color);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.product-info {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-name {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.product-name a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.product-name a:hover {
  color: var(--primary-color);
}

.product-desc {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: gap 0.3s ease;
}

.product-link:hover {
  gap: 0.75rem;
}

/* ========== EMPTY STATE ========== */
.products-empty-state {
  text-align: center;
  padding: 5rem 2rem;
}

.empty-icon {
  font-size: 5rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.empty-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.empty-text {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.btn-back-products {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--primary-gradient);
  color: var(--white);
  border-radius: 0.75rem;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.btn-back-products:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1199.98px) {
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 991.98px) {
  .products-hero-title {
    font-size: 2.5rem;
  }

  .products-hero-subtitle {
    font-size: 1.125rem;
  }

  .products-filter-form {
    grid-template-columns: 1fr;
  }

  .filter-btn-search {
    justify-content: center;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 767.98px) {
  .products-hero-banner {
    padding: 4rem 0 3rem;
  }

  .products-hero-title {
    font-size: 2rem;
  }

  .products-hero-subtitle {
    font-size: 1rem;
  }

  .products-filter-card {
    padding: 1.5rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575.98px) {
  .products-hero-title {
    font-size: 1.75rem;
  }

  .filter-input,
  .filter-select {
    padding: 0.875rem 0.875rem 0.875rem 2.75rem;
  }

  .filter-btn-search {
    padding: 0.875rem 1.5rem;
  }
}