/* ========================================
   VNMaterial - Comprehensive Mobile Responsive Styles
   Created: October 2025
   Mobile-First Approach for Perfect Display on All Devices
======================================== */

/* ==========================================
   INDEX - DESKTOP MEDIUM (1280px - 1399px)
   Giữ nội dung đầy đủ, giảm padding/gap nhẹ cho vừa màn hình
========================================== */
@media (max-width: 1399px) and (min-width: 1025px) {
    .container {
        padding: 0 1.5rem;
        max-width: 100%;
    }

    .fullpage-section .container {
        padding: 0 1.5rem;
    }

    .stats-grid {
        gap: 20px;
    }

    .mission-grid {
        gap: 1.75rem;
    }

    .news-grid {
        gap: 1.75rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* ==========================================
   INDEX - DESKTOP SMALL / LAPTOP (1025px - 1279px)
   Bố cục vừa màn hình, không thu nhỏ toàn bộ
========================================== */
@media (max-width: 1279px) and (min-width: 1025px) {
    .container {
        padding: 0 1rem;
        max-width: 100%;
    }

    .fullpage-section .container {
        padding: 0 1rem;
    }

    .stats-grid {
        gap: 16px;
    }

    .mission-grid {
        gap: 1.5rem;
    }

    .news-grid {
        gap: 1.5rem;
    }

    .section-title {
        font-size: 1.85rem;
    }

    .hero-title {
        font-size: 2.75rem;
    }
}

/* ==========================================
   TABLET & SMALL DESKTOP (max-width: 1024px)
========================================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.2rem;
    }
    
    /* Header adjustments */
    .header-container {
        padding: 0 1.2rem;
    }
    
    .nav-list {
        gap: 2rem;
    }
    
    .nav-text {
        font-size: 0.88rem;
        letter-spacing: 2px;
    }
    
    .nav-number {
        font-size: 0.8rem;
    }
    
    /* Grids */
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    
    .mission-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    /* Sections */
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
}

/* ==========================================
   TABLET PORTRAIT (max-width: 768px)
========================================== */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    body {
        padding-top: 70px;
        font-size: 15px;
    }
    
    .container {
        padding: 0 0.75rem;
    }
    
    /* Slider full width - no padding */
    .main-slider,
    section.main-slider {
        margin: 0 !important;
        padding: 0 !important;
        width: 100vw !important;
        max-width: 100% !important;
        overflow-x: hidden;
    }
    
    /* Category Filter - Gần full màn hình */
    .category-filter {
        margin: -40px 0.5rem 1.5rem !important;
        padding: 1rem !important;
        border-radius: 12px !important;
        width: calc(100% - 1rem) !important;
        max-width: none !important;
    }
    
    /* Materials Grid */
    .materials-grid,
    .equipment-grid,
    .technology-grid,
    .landscape-grid,
    .suppliers-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1rem !important;
    }
    
    .main-content {
        padding: 0 0.5rem !important;
    }
    
    /* Hero sections - Full width */
    .materials-hero,
    .equipment-hero,
    .technology-hero,
    .landscape-hero,
    .suppliers-hero {
        padding: 100px 0 70px !important;
        min-height: 350px !important;
    }
    
    .hero-content {
        padding: 0 1rem !important;
    }
    
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .hero-subtitle {
        font-size: 1.1rem !important;
    }
    
    /* Cards - Responsive */
    .material-card,
    .equipment-card,
    .technology-card,
    .landscape-card,
    .supplier-card {
        border-radius: 14px !important;
    }
    
    .material-header,
    .equipment-header,
    .technology-header,
    .landscape-header,
    .supplier-header {
        height: 140px !important;
    }
    
    .material-title,
    .equipment-title,
    .technology-title,
    .landscape-title,
    .supplier-name {
        font-size: 1rem !important;
    }
    
    .material-description,
    .equipment-description,
    .technology-description,
    .landscape-description,
    .supplier-description {
        font-size: 0.85rem !important;
        line-height: 1.5 !important;
    }
    
    /* Pagination */
    .pagination {
        gap: 0.5rem !important;
        padding: 1.5rem 0 !important;
    }
    
    .pagination-btn {
        padding: 0.6rem 1rem !important;
        font-size: 0.85rem !important;
    }
    
    .filter-header {
        flex-direction: column;
        align-items: stretch !important;
        gap: 0.75rem !important;
    }
    
    .filter-title {
        font-size: 0.8rem !important;
    }
    
    .search-box {
        max-width: 100% !important;
        width: 100% !important;
    }
    
    .search-input {
        font-size: 0.875rem !important;
        padding: 0.75rem 1rem !important;
    }
    
    .category-pills {
        gap: 0.5rem !important;
        justify-content: flex-start;
    }
    
    .category-pill {
        font-size: 0.8rem !important;
        padding: 0.5rem 1rem !important;
        flex: 0 0 auto;
    }
    
    .category-pill .count {
        font-size: 0.7rem !important;
    }
    
    /* Typography - Giảm 20% so với desktop */
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.6rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
    
    p {
        font-size: 0.9rem;
    }
    
    /* Header */
    .header-container {
        padding: 0 0.75rem;
    }
    
    .logo {
        height: 50px;
    }
    
    .nav-list {
        gap: 1.5rem;
    }
    
    .nav-link {
        padding: 0.6rem 1rem;
    }
    
    .nav-text {
        font-size: 0.825rem;
        letter-spacing: 1.8px;
    }
    
    .nav-number {
        font-size: 0.77rem;
    }
    
    .action-btn, .btn-login {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
        font-size: 0.85rem;
    }
    
    .lang-toggle-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
        font-size: 0.8rem;
    }
    
    .user-avatar-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }
    
    /* Hero Section */
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .btn-primary, .btn-outline {
        padding: 0.7rem 1.3rem;
    }
    
    /* Stats Grid - 3 cột trên mobile */
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.8rem;
    }
    
    .stat-item {
        padding: 1.2rem 0.5rem;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .stat-icon img {
        width: 35px;
        height: 35px;
    }
    
    /* Mission Grid */
    .mission-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .mission-card {
        padding: 1.8rem;
    }
    
    .mission-icon img {
        width: 60px;
        height: 60px;
    }
    
    .mission-title {
        font-size: 1.3rem;
    }
    
    .mission-description {
        font-size: 0.95rem;
    }
    
    /* News Grid */
    .news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .news-item {
        padding: 1.5rem;
    }
    
    .news-title {
        font-size: 1.2rem;
    }
    
    .news-excerpt {
        font-size: 0.9rem;
    }
    
    /* Partners carousel - khung 6 ô - hiển thị đủ 6 logo trên 1 hàng */
    .partners-row {
        gap: 0.2rem !important;
        padding: 0.75rem 0.4rem !important;
        flex-wrap: nowrap !important;
        overflow-x: visible !important; /* Không scroll, hiển thị tất cả */
        -webkit-overflow-scrolling: touch !important;
        justify-content: space-between !important; /* Phân bố đều */
        scrollbar-width: none !important;
        width: 100% !important;
    }
    .partners-row::-webkit-scrollbar { display: none !important; }
    .partner-slide { 
        flex: 1 1 0 !important; /* Chia đều không gian */
        min-width: 0 !important;
        max-width: calc(16.666% - 0.17rem) !important; /* 6 logo chia đều */
    }
    .partner-slide:first-child { 
        flex: 1.4 1 0 !important; /* Logo đầu lớn hơn một chút */
        max-width: calc(23% - 0.17rem) !important;
    }
    .partner-box { height: 70px !important; }
    .partner-box img { max-height: 50px !important; width: auto !important; }
    
    /* Search Section */
    .search-links {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .search-link {
        padding: 1.5rem;
    }
    
    .search-tags {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    /* Footer */
    .footer {
        padding: 40px 0 0;
        margin-top: 60px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    /* Sections Spacing */
    section {
        padding: 3rem 0;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Search Popup */
    .search-popup {
        padding: 30px 20px;
        width: 85%;
    }
    
    .search-popup-title {
        font-size: 1.5rem;
    }
    
    .search-input {
        font-size: 1rem;
        padding: 16px 56px 16px 48px;
    }
}

/* ==========================================
   LARGE MOBILE (max-width: 640px)
========================================== */
@media (max-width: 640px) {
    .container {
        padding: 0 0.5rem;
    }
    
    /* Slider full width */
    .main-slider,
    section.main-slider {
        margin: 0 !important;
        padding: 0 !important;
        width: 100vw !important;
        max-width: 100% !important;
    }
    
    /* Category Filter - Gần full màn hình */
    .category-filter {
        margin: -35px 0.375rem 1.25rem !important;
        padding: 0.875rem !important;
        width: calc(100% - 0.75rem) !important;
        max-width: none !important;
    }
    
    .filter-header {
        margin-bottom: 0.875rem !important;
        gap: 0.65rem !important;
    }
    
    .search-input {
        font-size: 0.85rem !important;
        padding: 0.7rem 0.9rem !important;
    }
    
    .category-pill {
        font-size: 0.75rem !important;
        padding: 0.45rem 0.9rem !important;
    }
    
    .category-pill .count {
        font-size: 0.68rem !important;
        padding: 0.1rem 0.4rem !important;
    }
    
    /* Grids - 2 cột */
    .materials-grid,
    .equipment-grid,
    .technology-grid,
    .landscape-grid,
    .suppliers-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.9rem !important;
    }
    
    /* Hero sections */
    .materials-hero,
    .equipment-hero,
    .technology-hero,
    .landscape-hero,
    .suppliers-hero {
        padding: 90px 0 60px !important;
        min-height: 320px !important;
    }
    
    .hero-title {
        font-size: 2.2rem !important;
    }
    
    .hero-subtitle {
        font-size: 1rem !important;
    }
    
    /* Typography - Giảm thêm 20% */
    h1 { font-size: 1.6rem; }
    h2 { font-size: 1.4rem; }
    h3 { font-size: 1.15rem; }
    
    /* Header */
    :root {
        --header-height: 60px;
    }
    
    body {
        padding-top: 60px;
        font-size: 14px;
    }
    
    .header-container {
        padding: 0 0.5rem;
    }
    
    .logo {
        height: 46px;
    }
    
    .nav-list {
        gap: 1.2rem;
    }
    
    .nav-link {
        padding: 0.55rem 0.85rem;
    }
    
    .nav-text {
        font-size: 0.78rem;
        letter-spacing: 1.5px;
    }
    
    .nav-number {
        font-size: 0.7rem;
    }
    
    .action-btn, .btn-login, .lang-toggle-btn, .user-avatar-btn {
        width: 38px;
        height: 38px;
        min-width: 38px;
        min-height: 38px;
        font-size: 0.8rem;
    }
    
    .header-actions {
        gap: 0.6rem;
    }
    
    /* Hero Section */
    .hero {
        padding: 5rem 0 2.5rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.15;
        margin-bottom: 0.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    /* Buttons */
    .btn {
        padding: 0.7rem 1.3rem;
        font-size: 0.9rem;
    }
    
    .btn-primary, .btn-outline {
        padding: 0.65rem 1.2rem;
        font-size: 0.88rem;
    }
    
    /* Stats - 3 cột */
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.7rem;
    }
    
    .stat-item {
        padding: 1rem 0.4rem;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .stat-label {
        font-size: 0.7rem;
    }
    
    .stat-icon img {
        width: 32px;
        height: 32px;
    }
    
    /* Mission Cards */
    .mission-card {
        padding: 1.6rem;
    }
    
    .mission-icon img {
        width: 55px;
        height: 55px;
    }
    
    .mission-number {
        font-size: 2rem;
    }
    
    .mission-title {
        font-size: 1.2rem;
    }
    
    .mission-description {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    /* News Items */
    .news-item {
        padding: 1.3rem;
    }
    
    .news-title {
        font-size: 1.15rem;
    }
    
    .news-excerpt {
        font-size: 0.88rem;
    }
    
    .news-meta {
        font-size: 0.8rem;
    }
    
    /* Partners carousel - hiển thị đủ 6 logo trên 1 hàng */
    .partners-row {
        gap: 0.15rem !important;
        padding: 0.7rem 0.3rem !important;
        flex-wrap: nowrap !important;
        overflow-x: visible !important; /* Không scroll, hiển thị tất cả */
        -webkit-overflow-scrolling: touch !important;
        justify-content: space-between !important; /* Phân bố đều */
        scrollbar-width: none !important;
        width: 100% !important;
    }
    .partners-row::-webkit-scrollbar { display: none !important; }
    .partner-slide { 
        flex: 1 1 0 !important; /* Chia đều không gian */
        min-width: 0 !important;
        max-width: calc(16.666% - 0.13rem) !important; /* 6 logo chia đều */
    }
    .partner-slide:first-child { 
        flex: 1.4 1 0 !important; /* Logo đầu lớn hơn một chút */
        max-width: calc(23% - 0.13rem) !important;
    }
    .partner-box { height: 65px !important; }
    .partner-box img { max-height: 45px !important; width: auto !important; }
    
    /* Footer */
    .footer {
        padding: 35px 0 0;
        margin-top: 50px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-col {
        gap: 12px;
    }
    
    .footer-logo {
        font-size: 1.3rem;
    }
    
    .footer-title {
        font-size: 0.85rem;
        margin-bottom: 10px;
    }
    
    .footer-desc {
        font-size: 0.85rem;
    }
    
    .footer-contact a,
    .footer-links a {
        font-size: 0.85rem;
    }
    
    .social-links {
        gap: 10px;
    }
    
    .social-link {
        width: 38px;
        height: 38px;
        font-size: 0.9rem;
    }
    
    .footer-badge {
        padding: 10px 14px;
    }
    
    .footer-badge span {
        font-size: 0.85rem;
    }
    
    .footer-badge small {
        font-size: 0.7rem;
    }
    
    .footer-bottom {
        padding: 20px 0;
    }
    
    .copyright,
    .footer-legal a {
        font-size: 0.8rem;
    }
    
    /* Sections */
    section {
        padding: 2.5rem 0;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    /* Chat Widget */
    .chat-widget {
        bottom: 14px;
        right: 14px;
    }
    
    .chat-button {
        width: 50px;
        height: 50px;
    }
    
    .chat-button i {
        font-size: 19px;
    }
    
    .chat-button-text {
        font-size: 7.5px;
    }
    
    .chat-popup {
        width: calc(100vw - 28px);
        right: -7px;
    }
    
    /* Search Popup */
    .search-overlay {
        padding-top: 100px;
    }
    
    .search-popup {
        width: 92%;
        padding: 28px 18px;
    }
    
    .search-popup-title {
        font-size: 1.4rem;
    }
    
    .search-popup-desc {
        font-size: 0.9rem;
        margin-bottom: 26px;
    }
    
    .search-input {
        padding: 15px 54px 15px 46px;
        font-size: 0.95rem;
    }
    
    .search-icon {
        font-size: 1.1rem;
        left: 18px;
    }
    
    .search-submit {
        width: 44px;
        height: 44px;
        font-size: 0.95rem;
    }
    
    .suggestion-tag {
        padding: 7px 14px;
        font-size: 0.85rem;
    }
}

/* ==========================================
   STANDARD MOBILE (max-width: 480px)
========================================== */
@media (max-width: 480px) {
    :root {
        --header-height: 56px;
    }
    
    body {
        padding-top: 56px;
        font-size: 13px;
    }
    
    .container {
        padding: 0 0.375rem;
    }
    
    /* Slider full width */
    .main-slider,
    section.main-slider {
        margin: 0 !important;
        padding: 0 !important;
        width: 100vw !important;
        max-width: 100% !important;
    }
    
    /* Category Filter - Gần full màn hình */
    .category-filter {
        margin: -30px 0.25rem 1rem !important;
        padding: 0.75rem !important;
        width: calc(100% - 0.5rem) !important;
        max-width: none !important;
        border-radius: 10px !important;
    }
    
    .filter-title {
        font-size: 0.75rem !important;
    }
    
    .search-input {
        font-size: 0.8rem !important;
        padding: 0.65rem 0.85rem !important;
        padding-right: 3rem !important;
    }
    
    .search-btn {
        width: 36px !important;
        height: 36px !important;
        font-size: 0.9rem !important;
    }
    
    .category-pill {
        font-size: 0.7rem !important;
        padding: 0.4rem 0.8rem !important;
    }
    
    .category-pill .count {
        font-size: 0.65rem !important;
    }
    
    /* All Grids - 1 cột trên mobile nhỏ */
    .materials-grid,
    .equipment-grid,
    .technology-grid,
    .landscape-grid,
    .suppliers-grid {
        grid-template-columns: 1fr !important;
        gap: 0.9rem !important;
    }
    
    .main-content {
        padding: 0 0.375rem !important;
    }
    
    /* Hero sections - Compact */
    .materials-hero,
    .equipment-hero,
    .technology-hero,
    .landscape-hero,
    .suppliers-hero {
        padding: 80px 0 50px !important;
        min-height: 280px !important;
    }
    
    .hero-title {
        font-size: 1.9rem !important;
    }
    
    .hero-subtitle {
        font-size: 0.95rem !important;
    }
    
    /* Product/Supplier Cards */
    .material-card,
    .equipment-card,
    .technology-card,
    .landscape-card,
    .supplier-card {
        margin: 0 !important;
        border-radius: 12px !important;
    }
    
    .material-header,
    .equipment-header,
    .technology-header,
    .landscape-header,
    .supplier-header {
        height: 160px !important;
    }
    
    .material-title,
    .equipment-title,
    .technology-title,
    .landscape-title,
    .supplier-name {
        font-size: 0.95rem !important;
    }
    
    .material-description,
    .equipment-description,
    .technology-description,
    .landscape-description,
    .supplier-description {
        font-size: 0.82rem !important;
        line-height: 1.5 !important;
    }
    
    /* Pagination */
    .pagination {
        gap: 0.4rem !important;
        flex-wrap: wrap !important;
        justify-content: center !important;
    }
    
    .pagination-btn {
        padding: 0.5rem 0.85rem !important;
        font-size: 0.8rem !important;
        min-width: 38px !important;
    }
    
    /* Typography - Compact cho mobile */
    h1 { font-size: 1.45rem; }
    h2 { font-size: 1.3rem; }
    h3 { font-size: 1.05rem; }
    h4 { font-size: 0.95rem; }
    
    p {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    /* Header */
    .header-container {
        padding: 0 0.375rem;
    }
    
    .logo {
        height: 42px;
    }
    
    .nav-list {
        gap: 1rem;
    }
    
    .nav-link {
        padding: 0.5rem 0.75rem;
    }
    
    .nav-text {
        font-size: 0.77rem;
        letter-spacing: 1.2px;
    }
    
    .nav-number {
        display: none;
    }
    
    .action-btn, .btn-login, .lang-toggle-btn, .user-avatar-btn {
        width: 36px;
        height: 36px;
        min-width: 36px;
        min-height: 36px;
        font-size: 0.75rem;
    }
    
    .header-actions {
        gap: 0.5rem;
        height: 36px;
    }
    
    /* Hero Section */
    .hero {
        padding: 4rem 0 2rem;
    }
    
    .hero-title {
        font-size: 1.9rem;
        line-height: 1.1;
        margin-bottom: 0.7rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 0.7rem;
    }
    
    .hero-description {
        font-size: 0.85rem;
        line-height: 1.5;
        margin-bottom: 1.2rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.65rem 1.2rem;
        font-size: 0.85rem;
    }
    
    .btn-primary, .btn-outline {
        padding: 0.6rem 1.1rem;
        font-size: 0.85rem;
    }
    
    /* Stats - 3 cột */
    .stats {
        padding: 2rem 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.6rem;
    }
    
    .stat-item {
        padding: 0.9rem 0.3rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.65rem;
    }
    
    .stat-icon img {
        width: 30px;
        height: 30px;
    }
    
    /* Mission Cards */
    .mission-grid {
        gap: 1.2rem;
        margin-top: 1.5rem;
    }
    
    .mission-card {
        padding: 1.5rem;
    }
    
    .mission-icon img {
        width: 50px;
        height: 50px;
    }
    
    .mission-number {
        font-size: 1.8rem;
    }
    
    .mission-title {
        font-size: 1.1rem;
        margin-bottom: 0.6rem;
    }
    
    .mission-description {
        font-size: 0.85rem;
        line-height: 1.55;
    }
    
    /* News */
    .news-grid {
        gap: 1.2rem;
    }
    
    .news-item {
        padding: 1.2rem;
    }
    
    .news-image {
        height: 180px;
        border-radius: 10px;
    }
    
    .news-title {
        font-size: 1.05rem;
        margin-bottom: 0.5rem;
    }
    
    .news-excerpt {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    .news-meta {
        font-size: 0.75rem;
    }
    
    /* Partners carousel - mobile, khung 6 ô - hiển thị đủ 6 logo trên 1 hàng */
    .partners-row {
        gap: 0.12rem !important;
        padding: 0.65rem 0.25rem !important;
        flex-wrap: nowrap !important;
        overflow-x: visible !important; /* Không scroll, hiển thị tất cả */
        -webkit-overflow-scrolling: touch !important;
        justify-content: space-between !important; /* Phân bố đều */
        scrollbar-width: none !important;
        width: 100% !important;
    }
    .partners-row::-webkit-scrollbar { display: none !important; }
    .partner-slide { 
        flex: 1 1 0 !important; /* Chia đều không gian */
        min-width: 0 !important;
        max-width: calc(16.666% - 0.1rem) !important; /* 6 logo chia đều */
    }
    .partner-slide:first-child { 
        flex: 1.4 1 0 !important; /* Logo đầu lớn hơn một chút */
        max-width: calc(23% - 0.1rem) !important;
    }
    .partner-box { height: 60px !important; }
    .partner-box img { max-height: 42px !important; width: auto !important; }
    
    /* Search Links */
    .search-link {
        padding: 1.3rem;
    }
    
    .search-link h3 {
        font-size: 1rem;
    }
    
    .search-link p {
        font-size: 0.8rem;
    }
    
    /* Footer */
    .footer {
        padding: 30px 0 0;
        margin-top: 40px;
    }
    
    .footer-grid {
        gap: 22px;
    }
    
    .footer-col {
        gap: 10px;
    }
    
    .footer-logo {
        font-size: 1.2rem;
        margin-bottom: 6px;
    }
    
    .footer-title {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }
    
    .footer-desc {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .footer-contact a,
    .footer-links a {
        font-size: 0.8rem;
    }
    
    .footer-contact {
        gap: 6px;
        margin-top: 6px;
    }
    
    .footer-links {
        gap: 6px;
    }
    
    .social-links {
        gap: 8px;
    }
    
    .social-link {
        width: 36px;
        height: 36px;
        font-size: 0.85rem;
        border-radius: 8px;
    }
    
    .footer-badge {
        padding: 9px 12px;
        margin-top: 10px;
    }
    
    .footer-badge span {
        font-size: 0.8rem;
    }
    
    .footer-badge small {
        font-size: 0.68rem;
    }
    
    .footer-bottom {
        padding: 18px 0;
    }
    
    .copyright {
        font-size: 0.75rem;
    }
    
    .footer-legal {
        gap: 15px;
    }
    
    .footer-legal a {
        font-size: 0.75rem;
    }
    
    /* Sections */
    section {
        padding: 2rem 0;
    }
    
    .section-header {
        margin-bottom: 1.5rem;
    }
    
    .section-title {
        font-size: 1.6rem;
        margin-bottom: 0.6rem;
    }
    
    .section-subtitle {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    /* Chat Widget */
    .chat-widget {
        bottom: 12px;
        right: 12px;
    }
    
    .chat-button {
        width: 48px;
        height: 48px;
    }
    
    .chat-button i {
        font-size: 18px;
    }
    
    .chat-button-text {
        font-size: 7px;
    }
    
    .chat-pulse {
        width: 12px;
        height: 12px;
    }
    
    .chat-popup {
        width: calc(100vw - 24px);
        right: -6px;
        bottom: 62px;
    }
    
    .chat-popup-header {
        padding: 15px;
    }
    
    .chat-popup-title h4 {
        font-size: 0.9rem;
    }
    
    .chat-popup-title p {
        font-size: 0.7rem;
    }
    
    .chat-popup-body {
        padding: 12px;
        gap: 8px;
    }
    
    .chat-option {
        padding: 12px;
        gap: 12px;
    }
    
    .chat-option-icon {
        width: 38px;
        height: 38px;
        font-size: 16px;
    }
    
    .chat-option-name {
        font-size: 0.85rem;
    }
    
    .chat-option-desc {
        font-size: 0.7rem;
    }
    
    .chat-popup-footer {
        padding: 9px 15px;
    }
    
    .chat-popup-footer small {
        font-size: 0.6rem;
    }
    
    /* Search Popup */
    .search-overlay {
        padding-top: 80px;
    }
    
    .search-popup {
        width: 94%;
        padding: 24px 16px;
    }
    
    .search-popup-close {
        width: 36px;
        height: 36px;
        top: 16px;
        right: 16px;
        font-size: 1.1rem;
    }
    
    .search-popup-title {
        font-size: 1.3rem;
        margin-bottom: 6px;
        gap: 10px;
    }
    
    .search-popup-desc {
        font-size: 0.85rem;
        margin-bottom: 24px;
    }
    
    .search-input-wrapper {
        margin-bottom: 26px;
    }
    
    .search-input {
        padding: 14px 50px 14px 44px;
        font-size: 0.9rem;
        border-radius: 14px;
    }
    
    .search-icon {
        font-size: 1rem;
        left: 16px;
    }
    
    .search-submit {
        width: 42px;
        height: 42px;
        font-size: 0.9rem;
        right: 6px;
        border-radius: 10px;
    }
    
    .search-suggestions {
        padding-top: 20px;
    }
    
    .suggestions-title {
        font-size: 0.75rem;
        margin-bottom: 10px;
    }
    
    .suggestions-tags {
        gap: 8px;
    }
    
    .suggestion-tag {
        padding: 6px 12px;
        font-size: 0.8rem;
        border-radius: 16px;
    }
}

/* ==========================================
   SMALL MOBILE (max-width: 375px)
========================================== */
@media (max-width: 375px) {
    :root {
        --header-height: 54px;
    }
    
    body {
        padding-top: 54px;
        font-size: 12.5px;
    }
    
    .container {
        padding: 0 0.3rem;
    }
    
    /* Slider full width */
    .main-slider,
    section.main-slider {
        margin: 0 !important;
        padding: 0 !important;
        width: 100vw !important;
        max-width: 100% !important;
    }
    
    /* Category Filter - Gần full màn hình */
    .category-filter {
        margin: -28px 0.2rem 0.9rem !important;
        padding: 0.7rem !important;
        width: calc(100% - 0.4rem) !important;
        max-width: none !important;
    }
    
    .filter-title {
        font-size: 0.7rem !important;
    }
    
    .search-input {
        font-size: 0.78rem !important;
        padding: 0.6rem 0.8rem !important;
    }
    
    .search-btn {
        width: 34px !important;
        height: 34px !important;
    }
    
    .category-pill {
        font-size: 0.68rem !important;
        padding: 0.38rem 0.75rem !important;
    }
    
    /* Hero sections - Very compact */
    .materials-hero,
    .equipment-hero,
    .technology-hero,
    .landscape-hero,
    .suppliers-hero {
        padding: 75px 0 45px !important;
        min-height: 260px !important;
    }
    
    .hero-title {
        font-size: 1.75rem !important;
    }
    
    .hero-subtitle {
        font-size: 0.9rem !important;
    }
    
    /* Typography - Rất compact */
    h1 { font-size: 1.35rem; }
    h2 { font-size: 1.2rem; }
    h3 { font-size: 1rem; }
    
    /* Header */
    .header-container {
        padding: 0 0.3rem;
    }
    
    .logo {
        height: 38px;
    }
    
    .nav-list {
        gap: 0.8rem;
    }
    
    .nav-link {
        padding: 0.45rem 0.65rem;
    }
    
    .nav-text {
        font-size: 0.72rem;
        letter-spacing: 1px;
    }
    
    .action-btn, .btn-login, .lang-toggle-btn, .user-avatar-btn {
        width: 34px;
        height: 34px;
        min-width: 34px;
        min-height: 34px;
        font-size: 0.7rem;
    }
    
    .header-actions {
        gap: 0.4rem;
        height: 34px;
    }
    
    /* Hero */
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .hero-description {
        font-size: 0.8rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.6rem 1.1rem;
        font-size: 0.8rem;
    }
    
    /* Stats - 3 cột */
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }
    
    .stat-item {
        padding: 0.8rem 0.25rem;
    }
    
    .stat-number {
        font-size: 1.4rem;
    }
    
    .stat-label {
        font-size: 0.6rem;
    }
    
    .stat-icon img {
        width: 28px;
        height: 28px;
    }
    
    /* Mission */
    .mission-card {
        padding: 1.3rem;
    }
    
    .mission-icon img {
        width: 46px;
        height: 46px;
    }
    
    .mission-number {
        font-size: 1.6rem;
    }
    
    .mission-title {
        font-size: 1.05rem;
    }
    
    .mission-description {
        font-size: 0.8rem;
    }
    
    /* News */
    .news-item {
        padding: 1.1rem;
    }
    
    .news-image {
        height: 160px;
    }
    
    .news-title {
        font-size: 1rem;
    }
    
    .news-excerpt {
        font-size: 0.8rem;
    }
    
    /* Footer */
    .footer-logo {
        font-size: 1.1rem;
    }
    
    .footer-title,
    .footer-desc,
    .footer-contact a,
    .footer-links a {
        font-size: 0.75rem;
    }
    
    .social-link {
        width: 34px;
        height: 34px;
    }
}

/* ==========================================
   EXTRA SMALL MOBILE (max-width: 320px)
========================================== */
@media (max-width: 320px) {
    :root {
        --header-height: 50px;
    }
    
    body {
        padding-top: 50px;
        font-size: 11.5px;
    }
    
    .container {
        padding: 0 0.25rem;
    }
    
    /* Slider full width */
    .main-slider,
    section.main-slider {
        margin: 0 !important;
        padding: 0 !important;
        width: 100vw !important;
        max-width: 100% !important;
    }
    
    /* Category Filter - Gần full màn hình */
    .category-filter {
        margin: -25px 0.15rem 0.8rem !important;
        padding: 0.65rem !important;
        width: calc(100% - 0.3rem) !important;
        max-width: none !important;
        border-radius: 8px !important;
    }
    
    .filter-title {
        font-size: 0.68rem !important;
    }
    
    .search-input {
        font-size: 0.75rem !important;
        padding: 0.55rem 0.75rem !important;
    }
    
    .search-btn {
        width: 32px !important;
        height: 32px !important;
        font-size: 0.85rem !important;
    }
    
    .category-pill {
        font-size: 0.65rem !important;
        padding: 0.35rem 0.7rem !important;
    }
    
    .category-pill .count {
        font-size: 0.6rem !important;
    }
    
    /* Hero sections - Ultra compact */
    .materials-hero,
    .equipment-hero,
    .technology-hero,
    .landscape-hero,
    .suppliers-hero {
        padding: 70px 0 40px !important;
        min-height: 240px !important;
    }
    
    .hero-title {
        font-size: 1.6rem !important;
    }
    
    .hero-subtitle {
        font-size: 0.85rem !important;
    }
    
    /* Typography - Ultra compact */
    h1 { font-size: 1.25rem; }
    h2 { font-size: 1.1rem; }
    h3 { font-size: 0.95rem; }
    
    /* Header */
    .header-container {
        padding: 0 0.25rem;
    }
    
    .logo {
        height: 34px;
    }
    
    .nav-list {
        gap: 0.6rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.55rem;
    }
    
    .nav-text {
        font-size: 0.68rem;
        letter-spacing: 0.8px;
    }
    
    .action-btn, .btn-login, .lang-toggle-btn, .user-avatar-btn {
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
        font-size: 0.65rem;
    }
    
    .header-actions {
        gap: 0.35rem;
        height: 32px;
    }
    
    /* Hero */
    .hero {
        padding: 3.5rem 0 1.8rem;
    }
    
    .hero-title {
        font-size: 1.6rem;
        margin-bottom: 0.6rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
    }
    
    .hero-description {
        font-size: 0.75rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.55rem 1rem;
        font-size: 0.75rem;
    }
    
    /* Stats - 3 cột */
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.4rem;
    }
    
    .stat-item {
        padding: 0.7rem 0.2rem;
    }
    
    .stat-number {
        font-size: 1.3rem;
    }
    
    .stat-label {
        font-size: 0.55rem;
    }
    
    .stat-icon img {
        width: 26px;
        height: 26px;
    }
    
    /* Mission */
    .mission-grid {
        gap: 1rem;
    }
    
    .mission-card {
        padding: 1.2rem;
    }
    
    .mission-icon img {
        width: 42px;
        height: 42px;
    }
    
    .mission-number {
        font-size: 1.5rem;
    }
    
    .mission-title {
        font-size: 1rem;
    }
    
    .mission-description {
        font-size: 0.75rem;
    }
    
    /* News */
    .news-grid {
        gap: 1rem;
    }
    
    .news-item {
        padding: 1rem;
    }
    
    .news-image {
        height: 140px;
    }
    
    .news-title {
        font-size: 0.95rem;
    }
    
    .news-excerpt {
        font-size: 0.75rem;
    }
    
    .news-meta {
        font-size: 0.7rem;
    }
    
    /* Partners carousel - small mobile, khung 6 ô - hiển thị đủ 6 logo trên 1 hàng */
    .partners-row {
        gap: 0.1rem !important;
        padding: 0.6rem 0.2rem !important;
        flex-wrap: nowrap !important;
        overflow-x: visible !important; /* Không scroll, hiển thị tất cả */
        -webkit-overflow-scrolling: touch !important;
        justify-content: space-between !important; /* Phân bố đều */
        scrollbar-width: none !important;
        width: 100% !important;
    }
    .partners-row::-webkit-scrollbar { display: none !important; }
    .partner-slide { 
        flex: 1 1 0 !important; /* Chia đều không gian */
        min-width: 0 !important;
        max-width: calc(16.666% - 0.08rem) !important; /* 6 logo chia đều */
    }
    .partner-slide:first-child { 
        flex: 1.4 1 0 !important; /* Logo đầu lớn hơn một chút */
        max-width: calc(23% - 0.08rem) !important;
    }
    .partner-box { height: 55px !important; }
    .partner-box img { max-height: 38px !important; width: auto !important; }
    
    /* Footer */
    .footer {
        padding: 25px 0 0;
        margin-top: 35px;
    }
    
    .footer-grid {
        gap: 20px;
    }
    
    .footer-logo {
        font-size: 1rem;
    }
    
    .footer-title,
    .footer-desc,
    .footer-contact a,
    .footer-links a {
        font-size: 0.7rem;
    }
    
    .social-links {
        gap: 6px;
    }
    
    .social-link {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }
    
    .footer-badge {
        padding: 8px 10px;
    }
    
    .footer-badge span {
        font-size: 0.75rem;
    }
    
    .footer-badge small {
        font-size: 0.6rem;
    }
    
    /* Sections */
    section {
        padding: 1.8rem 0;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .section-subtitle {
        font-size: 0.8rem;
    }
    
    /* Chat Widget */
    .chat-button {
        width: 44px;
        height: 44px;
    }
    
    .chat-button i {
        font-size: 16px;
    }
    
    .chat-button-text {
        font-size: 6.5px;
    }
}

/* ==========================================
   ENHANCED ANIMATIONS FOR MOBILE
========================================== */
@media (max-width: 768px) {
    .nav-menu.active {
        animation: slideDown 0.3s ease-out;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    /* Smooth transitions */
    * {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    }
    
    /* Touch-friendly hover states */
    .btn:active,
    .nav-link:active,
    .action-btn:active {
        transform: scale(0.95);
    }
}

/* ==========================================
   ACCESSIBILITY IMPROVEMENTS
========================================== */
/* Enhanced focus styles for mobile */
*:focus {
    outline: 2px solid #C8102E;
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 1001;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

/* Screen reader only class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================
   REDUCED MOTION SUPPORT
========================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* ==========================================
   PRINT STYLES
========================================== */
@media print {
    .header,
    .nav-toggle,
    .social-links,
    .chat-widget,
    .search-overlay,
    .action-btn,
    .btn-login {
        display: none !important;
    }
    
    .hero {
        page-break-after: always;
    }
    
    .mission-card,
    .news-item {
        page-break-inside: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}

/* ==========================================
   LANDSCAPE ORIENTATION SUPPORT
========================================== */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: 4rem 0 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .mission-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================
   HIGH CONTRAST MODE SUPPORT
========================================== */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 2px solid;
    }
    
    .nav-link:hover {
        background-color: var(--primary-color);
        color: white;
        padding: 0.25rem 0.5rem;
        border-radius: 0.25rem;
    }
}

/* ==========================================
   PRODUCTS PAGE RESPONSIVE
========================================== */
@media (max-width: 1024px) {
    .products-hero,
    .suppliers-hero {
        padding: 80px 0 50px;
        min-height: 260px;
    }
    
    .hero-content {
        padding: 0 1.2rem;
    }
    
    .hero-title {
        font-size: 2.6rem;
    }
    
    .hero-subtitle {
        font-size: 1.05rem;
    }
    
    .main-layout {
        padding: 0 1.2rem;
    }
    
    .products-grid,
    .suppliers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.2rem;
    }
}

@media (max-width: 768px) {
    .products-hero,
    .suppliers-hero {
        padding: 70px 0 40px;
        min-height: 200px;
    }
    
    .hero-content {
        padding: 0 0.75rem;
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: 0.7rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
    }
    
    .main-layout {
        flex-direction: column;
        padding: 0 0.75rem;
    }
    
    .sidebar {
        width: 100%;
        margin-bottom: 1.5rem;
        padding: 1rem;
    }
    
    .products-content,
    .suppliers-content {
        width: 100%;
    }
    
    .products-grid,
    .suppliers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .product-card,
    .supplier-card {
        padding: 1rem;
    }
    
    .product-image,
    .supplier-logo {
        height: 160px;
    }
    
    .product-title,
    .supplier-name {
        font-size: 0.95rem;
    }
    
    .product-description,
    .supplier-description {
        font-size: 0.8rem;
    }
    
    .product-price {
        font-size: 1rem;
    }
    
    /* Search and Filter */
    .search-filter-bar {
        flex-direction: column;
        gap: 0.7rem;
        padding: 0;
    }
    
    .search-box,
    .filter-dropdown {
        width: 100%;
    }
    
    /* Pagination */
    .pagination {
        gap: 0.35rem;
    }
    
    .pagination-btn {
        padding: 0.45rem 0.7rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 640px) {
    .products-hero,
    .suppliers-hero {
        padding: 60px 0 35px;
        min-height: 180px;
    }
    
    .hero-content {
        padding: 0 0.5rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
        margin-bottom: 0.6rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .main-layout {
        padding: 0 0.5rem;
    }
    
    .products-grid,
    .suppliers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }
    
    .product-card,
    .supplier-card {
        padding: 0.85rem;
    }
    
    .product-image,
    .supplier-logo {
        height: 150px;
        border-radius: 10px;
    }
    
    .product-title,
    .supplier-name {
        font-size: 0.9rem;
        margin-bottom: 0.35rem;
    }
    
    .product-description,
    .supplier-description {
        font-size: 0.75rem;
        line-height: 1.4;
    }
    
    .product-price {
        font-size: 0.95rem;
    }
    
    .product-meta,
    .supplier-meta {
        font-size: 0.7rem;
    }
    
    /* Stats bar - 3 cột */
    .stats-bar {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.6rem;
        padding: 1rem;
    }
    
    .stat-item {
        padding: 0.7rem 0.3rem;
    }
    
    .stat-value {
        font-size: 1.3rem;
    }
    
    .stat-label {
        font-size: 0.65rem;
    }
}

@media (max-width: 480px) {
    .products-hero,
    .suppliers-hero {
        padding: 55px 0 30px;
        min-height: 160px;
    }
    
    .hero-content {
        padding: 0 0.375rem;
    }
    
    .hero-title {
        font-size: 1.6rem;
        margin-bottom: 0.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
    }
    
    .main-layout {
        padding: 0 0.375rem;
    }
    
    .products-grid,
    .suppliers-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .product-card,
    .supplier-card {
        padding: 0.8rem;
    }
    
    .product-image,
    .supplier-logo {
        height: 180px;
    }
    
    .product-title,
    .supplier-name {
        font-size: 0.88rem;
    }
    
    .product-description,
    .supplier-description {
        font-size: 0.73rem;
    }
    
    .product-price {
        font-size: 0.92rem;
    }
    
    .btn-view-detail {
        padding: 0.55rem 0.9rem;
        font-size: 0.8rem;
    }
    
    /* Filter buttons */
    .category-filters {
        flex-wrap: wrap;
        gap: 0.45rem;
    }
    
    .category-btn {
        padding: 0.45rem 0.8rem;
        font-size: 0.75rem;
    }
    
    /* Stats - 3 cột */
    .stats-bar {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
        padding: 0.8rem;
    }
    
    .stat-item {
        padding: 0.6rem 0.25rem;
    }
    
    .stat-value {
        font-size: 1.1rem;
    }
    
    .stat-label {
        font-size: 0.6rem;
    }
}

@media (max-width: 375px) {
    .hero-title {
        font-size: 1.65rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
    }
    
    .product-card,
    .supplier-card {
        padding: 0.8rem;
    }
    
    .product-image,
    .supplier-logo {
        height: 180px;
    }
    
    .product-title,
    .supplier-name {
        font-size: 0.9rem;
    }
}

@media (max-width: 320px) {
    .products-hero,
    .suppliers-hero {
        padding: 55px 0 30px;
        min-height: 160px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.8rem;
    }
    
    .product-card,
    .supplier-card {
        padding: 0.75rem;
    }
    
    .product-image,
    .supplier-logo {
        height: 160px;
    }
}

/* ==========================================
   PRODUCT DETAIL PAGE RESPONSIVE
========================================== */
@media (max-width: 1024px) {
    .page-container {
        padding: 0 1.5rem;
    }
    
    .product-detail-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-gallery {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .page-container {
        margin: 50px auto 2rem;
        padding: 0 1rem;
    }
    
    .breadcrumb {
        font-size: 0.85rem;
        margin-bottom: 0.8rem;
    }
    
    .product-detail-layout {
        gap: 1.5rem;
    }
    
    /* Gallery */
    .main-image {
        height: 350px;
        border-radius: 12px;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.6rem;
    }
    
    .thumbnail {
        height: 70px;
        border-radius: 8px;
    }
    
    /* Product Info */
    .product-name {
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
    }
    
    .product-price {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .product-meta-item {
        font-size: 0.85rem;
        padding: 0.5rem 0;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 0.8rem;
    }
    
    /* Tabs */
    .product-tabs {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .tab-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
    
    .tab-content {
        padding: 1.2rem;
    }
    
    /* Related Products */
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 640px) {
    .page-container {
        margin: 40px auto 1.5rem;
        padding: 0 0.875rem;
    }
    
    .breadcrumb {
        font-size: 0.8rem;
        flex-wrap: wrap;
    }
    
    /* Gallery */
    .main-image {
        height: 300px;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }
    
    .thumbnail {
        height: 60px;
    }
    
    /* Product Info */
    .product-name {
        font-size: 1.6rem;
        line-height: 1.2;
    }
    
    .product-price {
        font-size: 1.8rem;
    }
    
    .product-meta-item {
        font-size: 0.8rem;
        padding: 0.45rem 0;
    }
    
    .product-meta-item i {
        width: 20px;
        font-size: 0.85rem;
    }
    
    /* Tabs */
    .product-tabs {
        gap: 0.4rem;
    }
    
    .tab-btn {
        padding: 0.55rem 0.9rem;
        font-size: 0.8rem;
    }
    
    .tab-content {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    /* Supplier Box */
    .supplier-box {
        padding: 1.2rem;
    }
    
    .supplier-logo {
        width: 60px;
        height: 60px;
    }
    
    .supplier-name {
        font-size: 1.1rem;
    }
    
    .supplier-info {
        font-size: 0.8rem;
    }
    
    /* Related Products */
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }
    
    .related-product-card {
        padding: 0.8rem;
    }
    
    .related-product-image {
        height: 140px;
    }
    
    .related-product-title {
        font-size: 0.9rem;
    }
    
    .related-product-price {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .page-container {
        margin: 35px auto 1.2rem;
        padding: 0 0.75rem;
    }
    
    /* Gallery */
    .main-image {
        height: 260px;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.4rem;
    }
    
    .thumbnail {
        height: 65px;
    }
    
    /* Product Info */
    .product-name {
        font-size: 1.45rem;
    }
    
    .product-price {
        font-size: 1.65rem;
        margin-bottom: 0.8rem;
    }
    
    .product-meta {
        gap: 0.3rem;
    }
    
    .product-meta-item {
        font-size: 0.75rem;
        padding: 0.4rem 0;
    }
    
    .action-buttons {
        gap: 0.7rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.7rem;
        font-size: 0.85rem;
    }
    
    /* Tabs */
    .product-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        gap: 0.35rem;
        -webkit-overflow-scrolling: touch;
    }
    
    .tab-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
        white-space: nowrap;
    }
    
    .tab-content {
        padding: 0.9rem;
        font-size: 0.85rem;
    }
    
    /* Video iframe */
    .video-container iframe {
        height: 220px;
    }
    
    /* Supplier Box */
    .supplier-box {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .supplier-logo {
        width: 55px;
        height: 55px;
        margin: 0 auto 0.8rem;
    }
    
    .supplier-name {
        font-size: 1rem;
    }
    
    .supplier-info {
        font-size: 0.75rem;
    }
    
    /* Related Products */
    .related-products-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .related-product-card {
        display: flex;
        gap: 1rem;
    }
    
    .related-product-image {
        width: 100px;
        height: 100px;
        flex-shrink: 0;
    }
    
    .related-product-title {
        font-size: 0.85rem;
    }
    
    .related-product-price {
        font-size: 0.9rem;
    }
}

@media (max-width: 375px) {
    .main-image {
        height: 240px;
    }
    
    .product-name {
        font-size: 1.35rem;
    }
    
    .product-price {
        font-size: 1.55rem;
    }
    
    .thumbnail {
        height: 55px;
    }
}

@media (max-width: 320px) {
    .page-container {
        margin: 30px auto 1rem;
        padding: 0 0.5rem;
    }
    
    .main-image {
        height: 220px;
    }
    
    .product-name {
        font-size: 1.25rem;
    }
    
    .product-price {
        font-size: 1.45rem;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.35rem;
    }
    
    .thumbnail {
        height: 50px;
    }
}

/* ==========================================
   NEWS PAGE RESPONSIVE
========================================== */
@media (max-width: 768px) {
    .news-hero {
        padding: 80px 0 50px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .news-card {
        padding: 1.2rem;
    }
    
    .news-image {
        height: 200px;
    }
    
    .news-title {
        font-size: 1.2rem;
    }
    
    .news-excerpt {
        font-size: 0.9rem;
    }
}

@media (max-width: 640px) {
    .news-hero {
        padding: 70px 0 40px;
    }
    
    .news-grid {
        gap: 1.2rem;
    }
    
    .news-card {
        padding: 1rem;
    }
    
    .news-image {
        height: 180px;
    }
    
    .news-title {
        font-size: 1.1rem;
    }
    
    .news-excerpt {
        font-size: 0.85rem;
    }
    
    .news-meta {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .news-hero {
        padding: 60px 0 35px;
    }
    
    .news-grid {
        gap: 1rem;
    }
    
    .news-image {
        height: 160px;
    }
    
    .news-title {
        font-size: 1rem;
    }
    
    .news-excerpt {
        font-size: 0.8rem;
    }
}

/* ==========================================
   SEARCH PAGE RESPONSIVE
========================================== */
@media (max-width: 768px) {
    .search-results-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .search-result-card {
        padding: 1.2rem;
    }
    
    .search-result-title {
        font-size: 1.1rem;
    }
    
    .search-result-description {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .search-results-grid {
        gap: 1rem;
    }
    
    .search-result-card {
        padding: 1rem;
    }
    
    .search-result-title {
        font-size: 1rem;
    }
    
    .search-result-description {
        font-size: 0.8rem;
    }
}

/* ==========================================
   ARTICLE/POST DETAIL PAGE RESPONSIVE - FULL WIDTH
========================================== */
@media (max-width: 768px) {
    /* Article Detail Page */
    .article-container {
        padding: 0 0.5rem !important; /* Sát viền hơn */
        width: 100% !important;
    }
    
    .content-wrapper {
        padding: 0 0.375rem !important; /* Sát viền hơn */
        width: 100% !important;
        margin: 1rem 0 !important;
    }
    
    .article-body {
        padding: 1.5rem 0.75rem !important; /* Giảm padding */
    }
    
    .article-footer {
        padding: 1.5rem 0.75rem !important;
    }
    
    /* Post Detail Page */
    .post-detail {
        padding: 1.5rem 0.75rem !important; /* Giảm padding */
    }
    
    .post-main-column {
        padding: 0 !important;
    }
    
    /* Comment Form */
    .comment-form {
        padding: 1.2rem 0.75rem !important;
    }
}

@media (max-width: 640px) {
    .article-container,
    .content-wrapper {
        padding: 0 0.5rem !important;
    }
    
    .article-body,
    .article-footer,
    .post-detail {
        padding: 1.2rem 0.5rem !important;
    }
}

@media (max-width: 480px) {
    /* Full màn hình - Sát viền tối đa */
    .article-container {
        padding: 0 0.375rem !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .content-wrapper {
        padding: 0 0.375rem !important;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0.5rem 0 !important;
    }
    
    .article-body,
    .article-footer {
        padding: 1rem 0.375rem !important;
    }
    
    .post-detail {
        padding: 1rem 0.375rem !important;
        border-radius: 8px !important;
    }
    
    .comment-form {
        padding: 1rem 0.5rem !important;
    }
    
    /* Breadcrumb */
    .breadcrumb {
        font-size: 0.7rem !important;
        margin-bottom: 1rem !important;
        padding: 0 !important;
    }
    
    /* Article Title */
    .article-title,
    .post-title {
        font-size: 1.4rem !important;
        line-height: 1.3 !important;
        margin-bottom: 1rem !important;
    }
    
    /* Article Content */
    .article-body h2,
    .post-content h2 {
        font-size: 1.2rem !important;
        margin: 1.5rem 0 0.75rem !important;
    }
    
    .article-body h3,
    .post-content h3 {
        font-size: 1.05rem !important;
        margin: 1.2rem 0 0.6rem !important;
    }
    
    .article-body p,
    .post-content p {
        font-size: 0.95rem !important;
        line-height: 1.7 !important;
        margin-bottom: 1rem !important;
    }
    
    /* Sidebar */
    .sidebar-article {
        padding: 0.75rem 0 !important;
    }
    
    .sidebar-thumbnail {
        width: 60px !important;
        height: 60px !important;
    }
    
    .sidebar-article-title {
        font-size: 0.8rem !important;
    }
}

@media (max-width: 375px) {
    /* iPhone SE và nhỏ hơn - Full màn hình */
    .article-container,
    .content-wrapper {
        padding: 0 0.3rem !important;
    }
    
    .article-body,
    .article-footer,
    .post-detail {
        padding: 0.875rem 0.3rem !important;
    }
    
    .article-title,
    .post-title {
        font-size: 1.3rem !important;
    }
    
    .article-body p,
    .post-content p {
        font-size: 0.9rem !important;
    }
}

@media (max-width: 320px) {
    /* Màn hình rất nhỏ - Tối ưu tối đa */
    .article-container,
    .content-wrapper {
        padding: 0 0.25rem !important;
    }
    
    .article-body,
    .article-footer,
    .post-detail {
        padding: 0.75rem 0.25rem !important;
    }
    
    .article-title,
    .post-title {
        font-size: 1.2rem !important;
    }
    
    .article-body p,
    .post-content p {
        font-size: 0.85rem !important;
    }
    
    .sidebar-thumbnail {
        width: 50px !important;
        height: 50px !important;
    }
}

/* ==========================================
   PERFORMANCE OPTIMIZATIONS
========================================== */
.hero,
.stats,
.about,
.search-section,
.news,
.partners {
    contain: layout style paint;
}

/* Optimize images on mobile */
@media (max-width: 768px) {
    img {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* ==========================================
   SUPPLIER DETAIL PAGE RESPONSIVE
========================================== */
@media (max-width: 768px) {
    /* Supplier Detail - Mobile Optimized */
    .page-container {
        margin: 50px auto 2rem !important;
        padding: 0 0.75rem !important;
    }
    
    .supplier-header {
        padding: 1.5rem !important;
        border-radius: 16px !important;
        margin-bottom: 1.5rem !important;
    }
    
    .supplier-header-content {
        grid-template-columns: 1fr !important;
        gap: 1.25rem !important;
        text-align: center !important;
    }
    
    .supplier-logo {
        width: 120px !important;
        height: 120px !important;
        margin: 0 auto !important;
        border-radius: 16px !important;
    }
    
    .supplier-name {
        font-size: 1.8rem !important;
        margin-bottom: 0.75rem !important;
    }
    
    .supplier-meta {
        gap: 1rem !important;
        justify-content: center !important;
    }
    
    .supplier-meta-item {
        font-size: 0.875rem !important;
    }
    
    /* Content sections */
    .supplier-content {
        grid-template-columns: 1fr !important;
        gap: 1.5rem !important;
    }
    
    .info-section {
        padding: 1.5rem !important;
        border-radius: 14px !important;
        margin-bottom: 1.25rem !important;
    }
    
    .info-section h3 {
        font-size: 1.25rem !important;
        margin-bottom: 1rem !important;
    }
    
    .info-section p {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
    }
    
    /* Contact info */
    .contact-item {
        padding: 1rem !important;
        font-size: 0.875rem !important;
        border-radius: 10px !important;
    }
    
    .contact-item i {
        font-size: 1.1rem !important;
        width: 40px !important;
        height: 40px !important;
    }
    
    /* Sidebar */
    .supplier-sidebar {
        order: -1 !important;
    }
    
    /* Related products */
    .products-section {
        padding: 0 0.75rem !important;
        margin-bottom: 2rem !important;
    }
    
    .products-section .section-header {
        margin-bottom: 1rem !important;
    }
    
    .products-section h2,
    .products-section .section-title {
        font-size: 1.2rem !important;
        margin-bottom: 0.5rem !important;
        line-height: 1.3 !important;
        word-break: break-word !important;
    }
    
    .products-section h2 i,
    .products-section .section-title i {
        font-size: 1rem !important;
        margin-right: 0.5rem !important;
    }
    
    .products-section .btn-view-all,
    .products-section a[href*="products"] {
        font-size: 0.85rem !important;
        padding: 0.6rem 1rem !important;
        width: 100% !important;
    }
    
    .products-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
}

@media (max-width: 640px) {
    .page-container {
        padding: 0 0.5rem !important;
        margin: 40px auto 1.5rem !important;
    }
    
    .breadcrumb {
        font-size: 0.8rem !important;
        margin-bottom: 1rem !important;
    }
    
    .supplier-header {
        padding: 1.25rem !important;
        border-radius: 14px !important;
    }
    
    .supplier-logo {
        width: 100px !important;
        height: 100px !important;
    }
    
    .supplier-name {
        font-size: 1.6rem !important;
    }
    
    .supplier-meta {
        flex-direction: column !important;
        gap: 0.75rem !important;
    }
    
    .supplier-meta-item {
        font-size: 0.85rem !important;
        justify-content: center !important;
    }
    
    .info-section {
        padding: 1.25rem !important;
        margin-bottom: 1rem !important;
    }
    
    .info-section h3 {
        font-size: 1.15rem !important;
    }
    
    .info-section p {
        font-size: 0.875rem !important;
    }
    
    .contact-item {
        padding: 0.875rem !important;
        font-size: 0.85rem !important;
    }
    
    .contact-item i {
        width: 36px !important;
        height: 36px !important;
    }
    
    .products-section {
        padding: 0 0.5rem !important;
    }
    
    .products-section h2,
    .products-section .section-title {
        font-size: 1.1rem !important;
        margin-bottom: 0.5rem !important;
        line-height: 1.25 !important;
        word-break: break-word !important;
    }
    
    .products-section h2 i,
    .products-section .section-title i {
        font-size: 0.95rem !important;
    }
    
    .products-section .btn-view-all,
    .products-section a[href*="products"] {
        font-size: 0.8rem !important;
        padding: 0.55rem 0.9rem !important;
        width: 100% !important;
    }
}

@media (max-width: 480px) {
    .page-container {
        padding: 0 0.375rem !important;
        margin: 35px auto 1.2rem !important;
    }
    
    .breadcrumb {
        font-size: 0.75rem !important;
        flex-wrap: wrap !important;
    }
    
    .supplier-header {
        padding: 1rem !important;
        border-radius: 12px !important;
    }
    
    .supplier-logo {
        width: 90px !important;
        height: 90px !important;
        border-radius: 12px !important;
    }
    
    .supplier-name {
        font-size: 1.45rem !important;
        line-height: 1.2 !important;
    }
    
    .info-section {
        padding: 1rem !important;
        border-radius: 12px !important;
    }
    
    .info-section h3 {
        font-size: 1.05rem !important;
        margin-bottom: 0.75rem !important;
    }
    
    .info-section p {
        font-size: 0.85rem !important;
    }
    
    .contact-item {
        padding: 0.75rem !important;
        font-size: 0.8rem !important;
    }
    
    .contact-item i {
        width: 34px !important;
        height: 34px !important;
        font-size: 1rem !important;
    }
    
    .products-section {
        padding: 0 0.375rem !important;
    }
    
    .products-section h2,
    .products-section .section-title {
        font-size: 1rem !important;
        margin-bottom: 0.45rem !important;
        line-height: 1.2 !important;
    }
    
    .products-section h2 i,
    .products-section .section-title i {
        font-size: 0.9rem !important;
    }
    
    .products-section .btn-view-all,
    .products-section a[href*="products"] {
        font-size: 0.75rem !important;
        padding: 0.5rem 0.85rem !important;
        width: 100% !important;
    }
    
    .products-grid {
        gap: 0.875rem !important;
    }
}

@media (max-width: 375px) {
    .page-container {
        padding: 0 0.3rem !important;
    }
    
    .supplier-header {
        padding: 0.875rem !important;
    }
    
    .supplier-logo {
        width: 80px !important;
        height: 80px !important;
    }
    
    .supplier-name {
        font-size: 1.35rem !important;
    }
    
    .info-section {
        padding: 0.875rem !important;
    }
    
    .info-section h3 {
        font-size: 1rem !important;
    }
    
    .info-section p {
        font-size: 0.8rem !important;
    }
    
    .contact-item {
        padding: 0.7rem !important;
        font-size: 0.78rem !important;
    }
    
    .products-section {
        padding: 0 0.3rem !important;
    }
    
    .products-section h2,
    .products-section .section-title {
        font-size: 0.95rem !important;
        margin-bottom: 0.4rem !important;
        line-height: 1.2 !important;
    }
    
    .products-section h2 i,
    .products-section .section-title i {
        font-size: 0.85rem !important;
    }
    
    .products-section .btn-view-all,
    .products-section a[href*="products"] {
        font-size: 0.72rem !important;
        padding: 0.48rem 0.8rem !important;
    }
}

@media (max-width: 320px) {
    .page-container {
        padding: 0 0.25rem !important;
        margin: 30px auto 1rem !important;
    }
    
    .supplier-header {
        padding: 0.75rem !important;
        border-radius: 10px !important;
    }
    
    .supplier-logo {
        width: 75px !important;
        height: 75px !important;
    }
    
    .supplier-name {
        font-size: 1.25rem !important;
    }
    
    .info-section {
        padding: 0.75rem !important;
    }
    
    .info-section h3 {
        font-size: 0.95rem !important;
    }
    
    .info-section p {
        font-size: 0.78rem !important;
    }
    
    .contact-item {
        padding: 0.65rem !important;
        font-size: 0.75rem !important;
    }
    
    .contact-item i {
        width: 32px !important;
        height: 32px !important;
    }
    
    .products-section {
        padding: 0 0.25rem !important;
    }
    
    .products-section h2,
    .products-section .section-title {
        font-size: 0.88rem !important;
        margin-bottom: 0.4rem !important;
        line-height: 1.2 !important;
    }
    
    .products-section h2 i,
    .products-section .section-title i {
        font-size: 0.8rem !important;
        margin-right: 0.35rem !important;
    }
    
    .products-section .btn-view-all,
    .products-section a[href*="products"] {
        font-size: 0.7rem !important;
        padding: 0.45rem 0.75rem !important;
    }
}

/* ==========================================
   PRODUCT DETAIL PAGE RESPONSIVE
========================================== */
@media (max-width: 768px) {
    /* Product Detail - Mobile Optimized */
    .product-detail-layout {
        grid-template-columns: 1fr !important;
        gap: 1.5rem !important;
    }
    
    .product-gallery {
        max-width: 85% !important;
        margin: 0 auto !important;
    }
    
    .main-image {
        height: 280px !important;
        border-radius: 12px !important;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 0.6rem !important;
    }
    
    .thumbnail {
        height: 70px !important;
        border-radius: 8px !important;
    }
    
    .product-name {
        font-size: 1.8rem !important;
        margin-bottom: 0.8rem !important;
    }
    
    .product-price {
        font-size: 2rem !important;
        margin-bottom: 1rem !important;
    }
    
    .product-meta-item {
        font-size: 0.85rem !important;
        padding: 0.5rem 0 !important;
    }
    
    .action-buttons {
        flex-direction: column !important;
        gap: 0.8rem !important;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100% !important;
        padding: 0.8rem !important;
    }
    
    .product-tabs {
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }
    
    .tab-btn {
        padding: 0.6rem 1rem !important;
        font-size: 0.85rem !important;
    }
    
    .tab-content {
        padding: 1.2rem !important;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1rem !important;
    }
}

@media (max-width: 640px) {
    .product-gallery {
        max-width: 90% !important;
    }
    
    .main-image {
        height: 260px !important;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 0.5rem !important;
    }
    
    .thumbnail {
        height: 55px !important;
    }
    
    .product-name {
        font-size: 1.6rem !important;
        line-height: 1.2 !important;
    }
    
    .product-price {
        font-size: 1.8rem !important;
    }
    
    .product-meta-item {
        font-size: 0.8rem !important;
        padding: 0.45rem 0 !important;
    }
    
    .product-meta-item i {
        width: 20px !important;
        font-size: 0.85rem !important;
    }
    
    .product-tabs {
        gap: 0.4rem !important;
    }
    
    .tab-btn {
        padding: 0.55rem 0.9rem !important;
        font-size: 0.8rem !important;
    }
    
    .tab-content {
        padding: 1rem !important;
        font-size: 0.9rem !important;
    }
    
    .supplier-box {
        padding: 1.2rem !important;
    }
    
    .supplier-logo {
        width: 60px !important;
        height: 60px !important;
    }
    
    .supplier-name {
        font-size: 1.1rem !important;
    }
    
    .supplier-info {
        font-size: 0.8rem !important;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.8rem !important;
    }
    
    .related-product-card {
        padding: 0.8rem !important;
    }
    
    .related-product-image {
        height: 140px !important;
    }
    
    .related-product-title {
        font-size: 0.9rem !important;
    }
    
    .related-product-price {
        font-size: 0.95rem !important;
    }
}

@media (max-width: 480px) {
    .product-gallery {
        max-width: 92% !important;
    }
    
    .main-image {
        height: 240px !important;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 0.4rem !important;
    }
    
    .thumbnail {
        height: 60px !important;
    }
    
    .product-name {
        font-size: 1.45rem !important;
    }
    
    .product-price {
        font-size: 1.65rem !important;
        margin-bottom: 0.8rem !important;
    }
    
    .product-meta {
        gap: 0.3rem !important;
    }
    
    .product-meta-item {
        font-size: 0.75rem !important;
        padding: 0.4rem 0 !important;
    }
    
    .action-buttons {
        gap: 0.7rem !important;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.7rem !important;
        font-size: 0.85rem !important;
    }
    
    .product-tabs {
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
        gap: 0.35rem !important;
        -webkit-overflow-scrolling: touch !important;
    }
    
    .tab-btn {
        padding: 0.5rem 0.8rem !important;
        font-size: 0.75rem !important;
        white-space: nowrap !important;
    }
    
    .tab-content {
        padding: 0.9rem !important;
        font-size: 0.85rem !important;
    }
    
    .video-container iframe {
        height: 220px !important;
    }
    
    .supplier-box {
        padding: 1rem !important;
        flex-direction: column !important;
        text-align: center !important;
    }
    
    .supplier-logo {
        width: 55px !important;
        height: 55px !important;
        margin: 0 auto 0.8rem !important;
    }
    
    .supplier-name {
        font-size: 1rem !important;
    }
    
    .supplier-info {
        font-size: 0.75rem !important;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr !important;
        gap: 0.8rem !important;
    }
    
    .related-product-card {
        display: flex !important;
        gap: 1rem !important;
    }
    
    .related-product-image {
        width: 100px !important;
        height: 100px !important;
        flex-shrink: 0 !important;
    }
    
    .related-product-title {
        font-size: 0.85rem !important;
    }
    
    .related-product-price {
        font-size: 0.9rem !important;
    }
}

@media (max-width: 375px) {
    .product-gallery {
        max-width: 94% !important;
    }
    
    .main-image {
        height: 220px !important;
    }
    
    .product-name {
        font-size: 1.35rem !important;
    }
    
    .product-price {
        font-size: 1.55rem !important;
    }
    
    .thumbnail {
        height: 52px !important;
    }
}

@media (max-width: 320px) {
    .product-gallery {
        max-width: 96% !important;
    }
    
    .main-image {
        height: 200px !important;
    }
    
    .product-name {
        font-size: 1.25rem !important;
    }
    
    .product-price {
        font-size: 1.45rem !important;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 0.35rem !important;
    }
    
    .thumbnail {
        height: 48px !important;
    }
}

/* End of Responsive Styles */