/* ============================================
   Xiniu Construction Machinery - Product List Page Styles
   ============================================ */

/* ===== Page Hero (smaller than home hero) ===== */
.page-hero {
  position: relative;
  width: 100%;
  height: 680px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
  text-align: left;
  color: white;
  width: 100%;
}

.page-hero-content .container {
  margin-left: 260px;
  margin-right: 260px;
  max-width: none;
  width: calc(100% - 520px);
  padding-left: 0;
  padding-right: 0;
}

.page-hero-text {
  max-width: 760px;
}

.page-hero-text h1 {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--color-text-white);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.page-hero-text p {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.95);
  margin-bottom: var(--space-xl);
  line-height: var(--leading-relaxed);
  max-width: 480px;
}

/* ===== Product List Section ===== */
.product-list-section {
  padding: var(--space-3xl) 260px;
  background-color: var(--color-bg);
}

@media (max-width: 1990px) {
  .product-list-section {
    padding: var(--space-3xl) 160px;
  }

  .page-hero-content .container {
    margin-left: 160px;
    margin-right: 160px;
    width: calc(100% - 320px);
  }

  .product-detail-actions {
    gap: 6px;
  }

  .btn-product-primary,
  .btn-product-outline {
    padding: 7px 10px;
    font-size: 13px;
    gap: 3px;
  }

  .btn-product-primary svg,
  .btn-product-outline svg {
    width: 10px;
    height: 10px;
  }
}

@media (max-width: 1650px) {
  .product-list-section {
    padding: var(--space-3xl) 80px;
  }

  .product-detail-actions {
    gap: 6px;
  }

  .btn-product-primary,
  .btn-product-outline {
    padding: 6px 8px;
    font-size: 12px;
    gap: 2px;
  }

  .btn-product-primary svg,
  .btn-product-outline svg {
    width: 10px;
    height: 10px;
  }
}

.product-list-container {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-2xl);
  align-items: start;
  max-width: none;
  margin: 0;
  padding: 0;
}

/* ===== Sidebar ===== */
.product-sidebar {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
}

.sidebar-header {
  background-color: #1A1A2E;
  padding: 14px 20px;
}

.sidebar-header h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-white);
}

.sidebar-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-menu li {
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-menu li:last-child {
  border-bottom: none;
}

.sidebar-menu li a {
  display: block;
  padding: 14px 20px;
  font-size: var(--text-base);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.sidebar-menu li:hover a {
  color: var(--color-primary);
}

.sidebar-menu li.active {
  background-color: #C4301A;
  position: relative;
}

.sidebar-menu li.active a {
  color: var(--color-text-white);
}

.sidebar-menu li.active svg {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-white);
}

/* ===== Brand Filter ===== */
.brand-filter {
  margin-bottom: var(--space-xl);
}

.brand-filter-title {
  margin-bottom: var(--space-md);
}

.brand-filter-label {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.brand-filter-count {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-left: 4px;
}

.brand-filter-tags {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.brand-tag-all {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 20px;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  border: none;
  border-right: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.brand-tag-list {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0;
  flex: 1;
}

.brand-tag-list .brand-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  text-align: center;
  white-space: nowrap;
}

.brand-tag-list .brand-tag:not(:nth-child(7n))::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 14px;
  background-color: var(--color-border);
}

.brand-tag:hover,
.brand-tag-list .brand-tag:hover {
  color: var(--color-primary);
}

.brand-tag.active,
.brand-tag-list .brand-tag.active {
  color: var(--color-text-primary);
  font-weight: 600;
}

.brand-tag-list .brand-tag.active {
  position: relative;
}

.brand-tag-list .brand-tag.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background-color: #C4301A;
}

/* ===== Product Detail Grid ===== */
.product-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (min-width: 1921px) {
  .product-detail-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1399px) {
  .product-detail-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }
}

@media (max-width: 1023px) {
  .product-detail-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

.product-detail-card {
  background: linear-gradient(180deg, #E5E5E5 0%, #FFFFFF 100%);
  overflow: hidden;
  transition: all var(--transition-normal);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  display: flex;
  flex-direction: column;
  width: 100%;
  aspect-ratio: 370 / 450;
}

@media (max-width: 1023px) {
  .product-detail-card {
    width: 100%;
    height: auto;
    aspect-ratio: auto;
  }
}

@media (max-width: 767px) {
  .product-detail-card {
    aspect-ratio: auto;
  }
}

.product-detail-img {
  width: 100%;
  height: 90%;
  overflow: hidden;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

@media (max-width: 1399px) {
  .product-detail-img {
    height: 220px;
  }
}

@media (max-width: 1023px) {
  .product-detail-img {
    height: 200px;
  }
}

.product-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition-slow);
  transform: scale(1.05);
}

.product-detail-body {
  padding: 0 var(--space-md) 32px;
  background: transparent;
  margin-top: auto;
}

.product-detail-body h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.product-detail-spec {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 2px;
}

.product-detail-actions {
  display: flex;
  gap: 8px;
  margin-top: var(--space-md);
}

.btn-product-primary {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: transparent;
  border: 1px solid #0F0F0F;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  flex: 1;
  justify-content: center;
  white-space: nowrap;
}

.btn-product-primary:hover {
  background-color: #C4301A;
  border-color: #C4301A;
  color: var(--color-text-white);
}

.btn-product-primary svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.btn-product-outline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: transparent;
  border: 1px solid #0F0F0F;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  flex: 1;
  justify-content: center;
  white-space: nowrap;
}

.btn-product-outline:hover {
  background-color: #C4301A;
  border-color: #C4301A;
  color: var(--color-text-white);
}

.btn-product-outline svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* ===== Mobile Category Dropdown ===== */
.mobile-category-dropdown {
  display: none;
}

.mobile-category-label {
  display: inline-block;
  background-color: #D32F2F;
  color: #fff;
  font-size: var(--text-lg);
  font-weight: 600;
  padding: 8px 76px 8px 16px;
  margin-bottom: 12px;
  position: relative;
  width: 260px;
  clip-path: polygon(0 0, calc(100% - 56px) 0, calc(100% - 84px) 100%, 0 100%);
}

.mobile-category-label::before {
  content: '';
  position: absolute;
  right: 28px;
  top: 0;
  width: 28px;
  height: 100%;
  background-color: #1A2B4A;
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.mobile-category-label::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  width: 28px;
  height: 100%;
  background-color: #F5A623;
  clip-path: polygon(60% 0, 100% 0, 100% 100%, 0 100%);
}

.mobile-category-label-extra {
  display: inline-block;
  vertical-align: top;
  width: 50px;
  height: 40px;
  background-color: #1A2B4A;
  margin-left: -80px;
  position: relative;
  clip-path: polygon(55% 0, 100% 0, 47% 100%, 0 100%);
}

.mobile-category-select {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  cursor: pointer;
  font-size: var(--text-base);
  color: var(--color-text-primary);
}

.mobile-category-select-text {
  font-weight: 500;
}

.mobile-category-arrow {
  transition: transform var(--transition-fast);
  color: var(--color-text-muted);
}

.mobile-category-dropdown.open .mobile-category-arrow {
  transform: rotate(180deg);
}

.mobile-category-options {
  display: none;
  list-style: none;
  padding: 0;
  margin: 4px 0 0 0;
  border: none;
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.mobile-category-dropdown.open .mobile-category-options {
  display: block;
}

.mobile-category-options li {
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-category-options li:last-child {
  border-bottom: none;
}

.mobile-category-options li a {
  display: block;
  padding: 12px 16px;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.mobile-category-options li.active a,
.mobile-category-options li a:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

/* ===== Mobile Brand Filter ===== */
.mobile-brand-filter {
  display: none;
}

.mobile-brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.mobile-brand-tag {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.mobile-brand-tag:hover {
  color: var(--color-primary);
}

.mobile-brand-tag.active {
  color: #003366;
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 1399px) {
  .product-list-section {
    padding: var(--space-3xl) 60px;
  }

  .page-hero-content .container {
    margin-left: 60px;
    margin-right: 60px;
    width: calc(100% - 120px);
  }
}

@media (max-width: 1199px) {
  .product-list-section {
    padding: var(--space-3xl) 40px;
  }

  .page-hero-content .container {
    margin-left: 40px;
    margin-right: 40px;
    width: calc(100% - 80px);
  }

  .product-list-container {
    grid-template-columns: 200px 1fr;
    gap: var(--space-xl);
  }

  .product-detail-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 1023px) {
  .product-list-section {
    padding: var(--space-2xl) 40px;
  }

  .page-hero-content .container {
    margin-left: 40px;
    margin-right: 40px;
    width: calc(100% - 80px);
  }

  .product-list-container {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .product-sidebar {
    max-width: 100%;
  }

  .sidebar-menu {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  .sidebar-menu li {
    border-bottom: none;
    border-right: 1px solid var(--color-border-light);
  }

  .sidebar-menu li:last-child {
    border-right: none;
  }

  .sidebar-menu li a {
    padding: 12px 16px;
    text-align: center;
    font-size: var(--text-sm);
  }

  .sidebar-menu li.active svg {
    display: none;
  }

  .product-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .product-detail-card {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
  }

  .product-detail-img {
    height: 200px;
  }

  .product-detail-actions {
    gap: 8px;
  }

  .btn-product-primary,
  .btn-product-outline {
    padding: 8px 14px;
    font-size: 13px;
    gap: 4px;
  }

  .btn-product-primary svg,
  .btn-product-outline svg {
    width: 11px;
    height: 11px;
  }

  .page-hero {
    height: 360px;
  }

  .page-hero-text h1 {
    font-size: var(--text-3xl);
  }
}

@media (max-width: 767px) {
  .product-list-section {
    padding: var(--space-xl) 16px;
  }

  .page-hero-content .container {
    margin-left: var(--container-padding);
    margin-right: var(--container-padding);
    width: auto;
  }

  .sidebar-header {
    display: none;
  }

  .mobile-category-dropdown {
    display: block;
  }

  .sidebar-menu {
    display: none;
  }

  .product-sidebar {
    border: none;
  }

  .brand-filter-tags {
    display: none;
  }

  .mobile-brand-filter {
    display: block;
  }

  .product-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .product-detail-card {
    display: flex;
    flex-direction: column;
  }

  .product-detail-body {
    padding: 0 var(--space-md) 16px;
  }

  .product-detail-actions {
    gap: 8px;
  }

  .btn-product-primary,
  .btn-product-outline {
    padding: 6px 8px;
    font-size: 11px;
    gap: 2px;
  }

  .btn-product-primary svg,
  .btn-product-outline svg {
    width: 10px;
    height: 10px;
  }

  .product-detail-img {
    height: 120px;
    padding: var(--space-sm);
  }

  .page-hero {
    height: 300px;
  }

  .page-hero-text h1 {
    font-size: var(--text-2xl);
  }

  .page-hero-text p {
    font-size: var(--text-sm);
  }
}

@media (max-width: 479px) {
  .product-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .product-detail-card {
    display: flex;
    flex-direction: column;
  }

  .product-detail-body {
    padding: 0 var(--space-md) 16px;
  }

  .product-detail-body h3 {
    font-size: 12px;
    margin-bottom: 4px;
  }

  .product-detail-spec {
    font-size: 10px;
    line-height: 1.4;
  }

  .product-detail-actions {
    flex-direction: column;
    gap: 4px;
    margin-top: var(--space-sm);
  }

  .btn-product-primary,
  .btn-product-outline {
    padding: 5px 6px;
    font-size: 10px;
    gap: 2px;
  }

  .btn-product-primary svg,
  .btn-product-outline svg {
    width: 9px;
    height: 9px;
  }
}