/* Common header and contact sidebar styles shared across pages */
/* Global Typography - standardized based on Homepage */
html {
  font-size: 16px; /* Define 1rem = 16px (standard) */
}

body {
  font-family: 'Roboto', sans-serif;
  font-size: 1.125rem; /* Standard text is 18px (1.125 * 16) */
  line-height: 1.65;
  color: #333130;
  background-color: #E0E0E0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

/* Navbar */
#navbar { background: transparent; padding: 1em; position: fixed; top: 0; width: 100%; z-index: 1000; display: flex; align-items: center; justify-content: space-between; transition: background-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease; }
/* Start solid on pages with body.solid-nav (index, products) */
body.solid-nav #navbar { background-color: #4A4A4A; box-shadow: 0 2px 6px rgba(0,0,0,0.12); }
/* Hide navbar on scroll down by adding .hidden */
#navbar.hidden { transform: translateY(-120%); pointer-events: none; }
#navbar .logo img { height: 32px; display:block; transition: height 0.3s ease; }
@media (max-width: 768px) { #navbar .logo img { height: 26px; } }
@media (max-width: 480px) { #navbar .logo img { height: 22px; } }
.nav-links { display: flex; align-items: center; gap: 0.5rem; }
/* Make nav link typography explicit so all pages match the homepage */
.nav-links a { color: #fff; padding: 0.45em 0.75em; text-decoration: none; font-weight: 700; white-space: nowrap; font-family: 'Roboto', sans-serif; font-size: 18px; letter-spacing: 0.04em; }
.nav-links a:hover, .nav-links a:focus, .nav-links a:active { background-color: #d81a29; color: #FFFFFF; border-radius: 6px; outline: none; }
.dropdown { position: relative; display: inline-block; }
/* Keep dropdown button consistent with nav links */
.dropdown-btn { background: transparent; color: #FFFFFF; padding: 0.45em 0.7em; border: 1px solid rgba(255,255,255,0.12); cursor: pointer; font-weight: 700; border-radius: 6px; font-family: 'Roboto', sans-serif; font-size: 18px; letter-spacing: 0.04em; }
.dropdown-btn:hover { background-color: rgba(216,26,41,0.95); }
.dropdown-content { position: absolute; background: #4A4A4A; min-width: 100px; box-shadow: 0 8px 16px rgba(0,0,0,0.2); z-index: 1010; top: 100%; right: 0; left: auto; display: none; text-align: center; }
/* Applications dropdown styling */
.nav-dropdown { position: relative; display: inline-block; }
.nav-dropdown-trigger { color: #fff; padding: 0.45em 0.75em; text-decoration: none; font-weight: 700; white-space: nowrap; font-family: 'Roboto', sans-serif; font-size: 18px; letter-spacing: 0.04em; cursor: pointer; display: flex; align-items: center; gap: 0.3em; }
.nav-dropdown-trigger:hover { background-color: #d81a29; color: #FFFFFF; border-radius: 6px; outline: none; }
.nav-dropdown-trigger.active { background-color: #d81a29; border-radius: 6px; }
.nav-dropdown-trigger::after { content: '\25bc'; font-size: 0.7em; }
.nav-dropdown > a.nav-dropdown-trigger::after { content: '\25bc'; font-size: 0.7em; margin-left: 0.3em; }
.nav-dropdown-menu { position: absolute; background: #4A4A4A; min-width: 200px; box-shadow: 0 8px 16px rgba(0,0,0,0.2); z-index: 1010; top: 100%; left: 0; display: none; flex-direction: column; text-align: left; border-radius: 0 0 6px 6px; }
.nav-dropdown-header { color: #d81a29; padding: 0.5em 1.2em 0.25em 1.2em; display: block; text-decoration: none; font-size: 14px; letter-spacing: 0.02em; font-weight: 700; text-transform: uppercase; margin-top: 0.25em; border-bottom: 1px solid rgba(255,255,255,0.1); }
.nav-dropdown-menu a { color: #FFFFFF; padding: 0.75em 1.2em; display: block; text-decoration: none; font-size: 16px; letter-spacing: 0.02em; transition: background-color 0.2s ease; }
.nav-dropdown-menu a:first-of-type { padding-top: 0.5em; }
.nav-dropdown-menu a:last-child { padding-bottom: 0.5em; }
.nav-dropdown-menu a:hover { background-color: #d81a29; }
.nav-dropdown:hover .nav-dropdown-menu { display: flex; }

/* Make all headings use Roboto and bold weight so titles are consistent across pages */
h1,h2,h3,h4,h5,h6 { font-family: 'Roboto', sans-serif; font-weight: 700; color: inherit; margin: 0 0 0.75rem; }
/* Unified heading sizes for consistent look across pages */
h1 { font-size: 2rem; line-height: 1.2; }
h2 { font-size: 1.6rem; line-height: 1.25; }
h3 { font-size: 1rem; line-height: 1.3; }
h4 { font-size: 0.95rem; line-height: 1.35; }

/* Global Section Typography & Components */
.section-title {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 2rem;
    color: #333130;
    margin-bottom: 0.8rem;
    line-height: 1.2;
}

.section-desc {
    font-family: 'Roboto', sans-serif;
    font-size: 1rem;
    color: #555;
    line-height: 1.65;
    margin-bottom: 2rem;
}

.is-divider.divider {
    height: 4px;
    background-color: #d81a29;
    max-width: 60px;
    margin: 0.5em auto 2.5em; /* Default to center */
    width: 0; /* Start at 0 width for animation */
    display: block;
    transition: width 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.is-divider.reveal-active {
    width: 60px; /* Expand when revealed */
}

/* Responsive adjustments for larger viewports */
@media (max-width: 1024px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.4rem; }
    h3 { font-size: 0.95rem; }
    .section-title { font-size: 1.6rem; }
}

/* Responsive adjustments for tablet */
@media (max-width: 768px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.2rem; }
    h3 { font-size: 0.9rem; }
    h4 { font-size: 0.9rem; }
    .section-title { font-size: 1.3rem; }
    body { font-size: 1rem; }
}

/* Responsive adjustments for mobile */
@media (max-width: 480px) {
    h1 { font-size: 1.3rem; }
    h2 { font-size: 1rem; }
    h3 { font-size: 0.85rem; }
    h4 { font-size: 0.85rem; }
    .section-title { font-size: 1.1rem; }
    body { font-size: 0.95rem; }
}
.dropdown-content a { color: #FFFFFF; padding: 0.5em; display: block; text-decoration: none; }
.dropdown-content a:hover { background-color: #D32F2F; }
.dropdown:hover .dropdown-content { display: block; }
#navbar.nav-solid { background-color: #4A4A4A; box-shadow: 0 2px 6px rgba(0,0,0,0.12); }
#navbar.nav-solid .dropdown-btn { background: transparent; color: #fff; border: none; }
.hamburger { display: none; cursor: pointer; font-size: 1.5em; color: #FFFFFF; margin-right: 1em; }
@media (max-width: 768px) { .hamburger { display: block; } .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #4A4A4A; padding: 1rem; flex-direction: column; gap: 0.5rem; } .nav-links.active { display: flex; } .nav-links a { display: block; margin: 0; padding: 0.75rem 1rem; border-radius: 6px; font-size: 16px; letter-spacing: 0.02em; font-family: 'Roboto', sans-serif; } .dropdown-btn { font-size: 16px; letter-spacing: 0.02em; } .nav-dropdown-trigger { font-size: 16px; letter-spacing: 0.02em; } .nav-dropdown-menu { position: static; display: none !important; background: rgba(0,0,0,0.1); margin-top: 0.5rem; border-radius: 4px; } .nav-dropdown.active .nav-dropdown-menu { display: flex !important; } .nav-dropdown-menu a { padding: 0.5em 1em; font-size: 14px; } }

/* Sticky Contact Sidebar */
#contactSidebar { position: fixed; left: 12px; top: 50%; transform: translateY(-50%); z-index: 1120; display: flex; align-items: center; pointer-events: auto; transition: left 0.3s ease; }
#contactSidebar .mystickyelement-lists-wrap { display: block; }
.mystickyelements-lists { list-style: none; margin: 0; padding: 0; }
.mystickyelements-lists li { display: flex; align-items: center; margin: 6px 0; background: transparent; }
.mystickyelements-min, .mystickyelements-minimize { cursor: pointer; display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: #000; color: #fff; border-radius: 6px; font-weight: 700; box-shadow: 0 4px 10px rgba(0,0,0,0.25); }
.mystickyelements-social-icon-li { position: relative; }
.mystickyelements-social-icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 6px; color: white; margin-right: 8px; font-size: 1.05rem; transition: margin-right 0.3s ease; }
.mystickyelements-social-icon .fa, .mystickyelements-social-icon .fab { font-size: 1.05rem; }
.mystickyelements-social-icon.social-phone, .mystickyelements-social-icon.social-wechat { background: #d81a29; }
.mystickyelements-social-text { display: inline-block; padding: 10px 14px; color: white; background: #d81a29; border-radius: 6px; transition: width 0.3s ease, padding 0.3s ease, opacity 0.3s ease; white-space: nowrap; font-weight: 600; box-shadow: 0 4px 10px rgba(216,26,41,0.18); overflow: hidden; width: auto; opacity: 1; }
.mystickyelements-social-text a { color: white; text-decoration: none; display: inline-block; }
.mystickyelements-social-icon a { color: white; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
#contactSidebar.collapsed { left: 6px; }
#contactSidebar.collapsed .mystickyelements-social-text { width: 0; padding: 0; opacity: 0; pointer-events: none; }
#contactSidebar.collapsed .mystickyelements-social-icon { margin-right: 0; }
#contactSidebar.collapsed .mystickyelements-minimize, #contactSidebar.collapsed .mystickyelements-min { transform: rotate(180deg); }
#contactSidebar:not(.collapsed) .mystickyelements-minimize, #contactSidebar:not(.collapsed) .mystickyelements-min { transform: rotate(0deg); }
.mystickyelements-flyout { position: absolute; left: 60px; top: 50%; transform: translateY(-50%); background: white; border-radius: 8px; box-shadow: 0 6px 18px rgba(0,0,0,0.15); padding: 10px; display: none; z-index: 1135; min-width: 160px; transition: opacity 0.15s ease; }
.mystickyelements-flyout::before { content: ""; position: absolute; left: -8px; top: 50%; transform: translateY(-50%); width: 0; height: 0; border-top: 8px solid transparent; border-bottom: 8px solid transparent; border-right: 8px solid white; }
.mystickyelements-flyout .flyout-inner { text-align: center; color: #222; font-size: 0.95rem; }
.mystickyelements-flyout img { width: 120px; height: 120px; object-fit: cover; display:block; margin: 0 auto 8px; border-radius: 6px; }
.mystickyelements-social-icon-li:hover .mystickyelements-flyout, .mystickyelements-flyout.open { display: block; }
.mystickyelements-flyout.phone-flyout { background: #333130; }
.mystickyelements-flyout.phone-flyout::before { border-right: 8px solid #333130; }
.mystickyelements-flyout.phone-flyout .flyout-inner { color: #fff; }
.mystickyelements-flyout.phone-flyout a { color: #fff; text-decoration: none; }
#contactSidebarMobileToggle { display: none; }
@media (max-width: 420px) { #contactSidebar { display: none; } #contactSidebarMobileToggle { display: flex; position: fixed; right: 16px; bottom: 20px; z-index: 1130; width: 52px; height: 52px; border-radius: 50%; background: #d81a29; color: white; align-items: center; justify-content: center; box-shadow: 0 6px 18px rgba(0,0,0,0.2); } #contactSidebar.mobile-open { display: flex; left: 12px; right: 12px; top: auto; bottom: 90px; transform: none; background: rgba(255,255,255,0.98); padding: 8px; border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.15); align-items: flex-start; } #contactSidebar.mobile-open .mystickyelement-lists-wrap { width: 100%; } #contactSidebar.mobile-open .mystickyelements-lists { width: 100%; } #contactSidebar.mobile-open .mystickyelements-lists li { width: 100%; justify-content: flex-start; margin: 8px 0; } #contactSidebar.mobile-open .mystickyelements-social-icon { margin-right: 12px; } #contactSidebar.mobile-open .mystickyelements-social-text { width: auto; padding: 10px 14px; opacity: 1; pointer-events: auto; } #contactSidebar.mobile-open .mystickyelements-minimize { display: none; } .mystickyelements-flyout { display: none; } }
@media (max-width: 420px) { #contactSidebar.mobile-open .mystickyelements-flyout.open { display: block !important; position: static; transform: none; box-shadow: none; width: 100%; margin-top: 5px; } }

/* Footer / site-footer styles */
.site-footer { 
  background: #2a2a2a; 
  color: #c0c0c0; 
  padding: 3.5rem 0 2rem; 
  margin-top: 0; 
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: left; /* Explicitly left-aligned */
}
.site-footer .container {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}
.site-footer .footer-logo img { height: 35px; width: auto; display: block; margin-bottom: 1rem; }
.site-footer .footer-logo p { max-width: 250px; color: #888; font-size: 0.85rem; line-height: 1.5; }
.site-footer a { color: #c0c0c0; text-decoration: none; transition: all 0.2s ease; }
.site-footer a:hover { color: #ffffff; }
.site-footer strong { 
  display: block; 
  color: #ffffff; 
  margin-bottom: 1rem; 
  font-weight: 600; 
  font-size: 1rem;
}
.site-footer .footer-links ul { padding-left: 0; margin: 0; }
.site-footer .footer-links li { margin-bottom: 0.6rem; }
.site-footer .footer-contact p { margin: 0; color: #c0c0c0; }

/* Footer responsive design */
.site-footer .footer-logo { flex: 0 0 auto; width: auto; min-width: 60px; }
@media (max-width: 767.98px) {
  .site-footer { text-align: left; padding: 2.5rem 0; }
  .site-footer .row { flex-wrap: wrap; }
  .site-footer .footer-logo { flex: 1 1 100%; margin-bottom: 2rem; }
  .site-footer .footer-links { flex: 1 1 50%; margin-bottom: 2rem; }
  .site-footer .footer-contact { flex: 1 1 100%; }
}

/* Scroll Animation Classes (Reveal effect) */
.reveal-hidden {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal-active {
  opacity: 1;
  transform: translateY(0);
}
/* Divider should NOT use opacity/transform animation, only width */
.is-divider.reveal-hidden {
  opacity: 1;
  transform: none;
}
/* Staggered entry for titles and descriptions */
.section-title.reveal-active {
  transition-delay: 0.1s;
}
.section-desc.reveal-active, 
.product-section-description.reveal-active {
  transition-delay: 0.3s;
}
.is-divider.reveal-active {
  transition-delay: 0.5s;
}

/* Remove unexpected gray band directly above footer by clearing bottom-most sections */
.section:last-of-type, .section-gray:last-of-type { background: transparent !important; margin-bottom: 0 !important; padding-bottom: 0 !important; }

/* ===== Product Subpage Styles ===== */
/* These styles are shared across all product subpages */

/* Product Page Container */
.product-page-section {
    margin-bottom: 3em;
    padding: 3rem 1rem;
    background-color: white;
}

.product-page-container {
    max-width: 1200px;
    margin: 2em auto;
    padding: 0 1em;
}

/* Product Header */
.product-header {
    border-bottom: 3px solid rgb(216, 26, 41);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.product-title {
    font-size: 2rem;
    font-weight: bold;
    color: #333130;
    margin-bottom: 0.5rem;
}

.product-description {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1rem;
}

/* PDF Count Badge */
.pdf-count {
    display: inline-block;
    background-color: #f0f0f0;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: #666;
    margin-top: 1rem;
}

/* Back to Products Button */
.back-to-products {
    display: inline-block;
    margin-bottom: 2rem;
    padding: 0.75rem 1.5rem;
    background-color: #f0f0f0;
    color: #333130;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.back-to-products:hover {
    background-color: rgb(216, 26, 41);
    color: white;
    text-decoration: none;
}

/* PDF List Grid */
.pdf-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* PDF Item Card */
.pdf-item {
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s ease;
    border-left: 4px solid rgb(216, 26, 41);
}

.pdf-item:hover {
    box-shadow: 0 4px 12px rgba(216, 26, 41, 0.15);
    transform: translateY(-2px);
}

.pdf-series-name {
    font-size: 1rem;
    font-weight: 600;
    color: #333130;
    margin-bottom: 0.5rem;
    word-break: break-word;
}

.pdf-filename {
    font-size: 0.85rem;
    color: #999;
    margin-bottom: 1rem;
    font-family: 'Courier New', monospace;
    word-break: break-all;
}

/* PDF Download Button */
.pdf-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background-color: rgb(216, 26, 41);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.pdf-download-btn:hover {
    background-color: #b91f30;
    color: white;
    text-decoration: none;
}

/* Product Card (for PT series with images) */
.product-card {
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s ease;
    border-left: 4px solid rgb(216, 26, 41);
    text-decoration: none;
    color: inherit;
}

.product-card:hover {
    box-shadow: 0 4px 12px rgba(216, 26, 41, 0.15);
    transform: translateY(-2px);
    text-decoration: none;
    color: inherit;
}

.product-card-image {
    width: 100%;
    height: 160px;
    object-fit: contain;
    margin-bottom: 1rem;
    background-color: white;
    border-radius: 4px;
}

.product-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: #333130;
    margin-bottom: 0.5rem;
}

.product-card-description {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.4;
}

/* Products Grid (for image cards) */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* Subcategories Section */
.subcategories-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f9f9f9;
    border-radius: 8px;
}

.subcategories-title {
    font-size: 1.3rem;
    color: #333130;
    margin-bottom: 1.5rem;
}

.subcategories-title i {
    color: rgb(216, 26, 41);
    margin-right: 0.5rem;
}

.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.subcategory-link {
    padding: 1rem;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    text-decoration: none;
    color: #333130;
    transition: all 0.3s ease;
    display: block;
}

.subcategory-link:hover {
    border-color: rgb(216, 26, 41);
    box-shadow: 0 2px 8px rgba(216, 26, 41, 0.1);
    text-decoration: none;
    color: #333130;
}

.subcategory-link h4 {
    margin: 0 0 0.5rem;
    color: #333130;
    font-weight: 600;
}

/* Navigation Links */
.navigation-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.nav-link-prev,
.nav-link-next {
    color: #666;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-link-prev:hover,
.nav-link-next:hover {
    color: rgb(216, 26, 41);
    text-decoration: none;
}

/* Section Headers */
.documents-header {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #333130;
}

.documents-header i {
    color: rgb(216, 26, 41);
    margin-right: 0.5rem;
}

/* Product Page Responsive */
@media (max-width: 768px) {
    .pdf-list,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-title {
        font-size: 1.5rem;
    }
    
    .navigation-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-link-prev,
    .nav-link-next {
        width: 100%;
        text-align: center;
    }
    
    .subcategories-grid {
        grid-template-columns: 1fr;
    }
}