/* Reset và Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 0.2rem;
}

.company-logo {
    width: 82px;
    height: 82px;
    margin-right: 10px;
    vertical-align: middle;
    filter: brightness(0) invert(1);
}

.logo {
    display: flex;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-logo .company-logo {
    width: 72px;
    height: 72px;
    margin-right: 8px;
    filter: brightness(0) invert(1);
}

.logo span {
    font-size: 0.9rem;
    opacity: 0.9;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav a:hover {
    background-color: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.hero h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #7f8c8d;
}

.hero-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
    text-align: left;
}

.company-intro, .industry-served {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid #3498db;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.company-intro:hover, .industry-served:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.hero-content h3 {
    color: #2c3e50;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-content p {
    color: #555;
    line-height: 1.7;
    font-size: 1rem;
    margin: 0;
}

.hero-content strong {
    color: #2c3e50;
}

/* About Section */
.about-section {
    background: white;
    margin: 3rem 0;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    overflow: hidden;
}

.about-content {
    padding: 3rem;
}

.about-content h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 2rem;
    position: relative;
}

.about-content h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 2px;
}

.about-text > div {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #3498db;
}

.about-text h3 {
    color: #2c3e50;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.about-text p {
    color: #555;
    line-height: 1.8;
    font-size: 1rem;
}

/* Strengths Grid */
.strengths-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.strength-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.strength-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.strength-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.strength-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.strength-item p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.stat-item {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 2rem 1rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(52, 152, 219, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* About Section Responsive */
@media (max-width: 768px) {
    .about-content {
        padding: 2rem;
    }
    
    .about-content h2 {
        font-size: 2rem;
    }
    
    .strengths-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-item {
        padding: 1.5rem 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .about-content {
        padding: 1.5rem;
    }
    
    .about-content h2 {
        font-size: 1.8rem;
    }
    
    .about-text > div {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .about-text h3 {
        font-size: 1.2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Products Section */
.products-section {
    margin: 3rem 0;
}

.products-title {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 3rem;
    position: relative;
}

.products-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 2px;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border-color: #3498db;
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: grayscale(0);
    transition: all 0.3s ease;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon img {
    max-height: 100%;
    max-width: 200px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    border-radius: 0;
}

.product-card:hover .product-icon {
    transform: scale(1.2);
}

.product-card:hover .product-icon img {
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.product-card h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: bold;
}

.product-card p {
    color: #7f8c8d;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn:hover {
    background: linear-gradient(135deg, #2980b9, #1f648b);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

/* Contact Section */
.contact-section {
    background: white;
    margin: 3rem 0;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    padding: 3rem;
}

.contact-title-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    position: relative;
}

.contact-title-logo {
    width: 180px;
    height: 180px;
    position: absolute;
    left: 1cm;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.contact-title {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin: 0;
    position: relative;
}

.contact-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 2px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.contact-item {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    border-color: #3498db;
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.contact-item p {
    color: #555;
    margin: 0;
    font-weight: 500;
}

/* Đặc biệt cho thẻ địa chỉ để rộng hơn */
.contact-item:nth-child(3) {
    min-width: 280px;
}

/* Contact Section Responsive */
@media (max-width: 768px) {
    .contact-section {
        padding: 2rem;
    }
    
    .contact-title {
        font-size: 2rem;
    }
    
    .contact-info {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .contact-item {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .contact-section {
        padding: 1.5rem;
    }
    
    .contact-title {
        font-size: 1.8rem;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-item {
        padding: 1rem;
    }
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 1.5rem 0 0.5rem;
    margin-top: 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 0.5rem;
    color: #3498db;
}

.footer-section p {
    margin-bottom: 0.3rem;
    opacity: 0.9;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.3rem;
    opacity: 0.9;
}

/* Two-column layout for footer product list */
.footer-section ul.product-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.3rem 0.6rem;
}

/* Make footer product list items clickable */
.footer-section ul.product-list li {
    cursor: pointer;
    transition: color 0.3s ease;
}

.footer-section ul.product-list li:hover {
    color: #007bff;
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid #34495e;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav ul {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 1.5rem;
    }

    .company-intro, .industry-served {
        padding: 1.5rem;
    }

    .hero-content h3 {
        font-size: 1.2rem;
    }

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

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(4, 1fr);
        gap: 1.5rem;
    }

    .product-card {
        padding: 1.5rem;
    }

    .product-card h3 {
        font-size: 1rem;
    }

    .product-icon {
        font-size: 2.5rem;
        height: 65px;
    }
    
    .product-icon img {
        max-width: 150px;
        border-radius: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    /* Single column for product list on mobile */
    .footer-section ul.product-list {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .products-title {
        font-size: 1.8rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(8, 1fr);
        gap: 1rem;
    }

    .product-card {
        padding: 1rem;
    }
    
    .product-icon {
        height: 50px;
    }
    
    .product-icon img {
        max-width: 120px;
        border-radius: 0;
    }

    .hero {
        padding: 1rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .hero-content {
        margin-top: 1rem;
        gap: 1rem;
    }

    .company-intro, .industry-served {
        padding: 1rem;
    }

    .hero-content h3 {
        font-size: 1.1rem;
    }
}

/* Animation và Effects */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeInUp 0.6s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }
.product-card:nth-child(7) { animation-delay: 0.7s; }
.product-card:nth-child(8) { animation-delay: 0.8s; }

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Spin Animation */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 2% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(-50px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 1.5rem;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.8rem;
}

.close {
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close:hover {
    background-color: rgba(255,255,255,0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: 2rem;
}

/* Pump Grid */
.pump-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* Valve Grid */
.valve-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* Valve Sub Grid */
.valve-sub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.seal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.seal-sub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.material-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.pipe-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.accessory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.pneumatic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.measurement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.pump-item, .valve-item, .valve-sub-item, .seal-item, .seal-sub-item, .material-item, .pipe-item, .accessory-item, .pneumatic-item, .measurement-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.pump-item:hover, .valve-item:hover, .valve-sub-item:hover, .seal-item:hover, .seal-sub-item:hover, .material-item:hover, .pipe-item:hover, .accessory-item:hover, .pneumatic-item:hover, .measurement-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #3498db;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

/* Modal icon styles - with circular background for emoji icons only */
.modal .pump-icon:not(:has(img)), .modal .valve-icon:not(:has(img)), .modal .valve-sub-icon:not(:has(img)), .modal .seal-icon:not(:has(img)), .modal .seal-sub-icon:not(:has(img)), .modal .material-icon:not(:has(img)), .modal .pipe-icon:not(:has(img)), .modal .accessory-icon:not(:has(img)), .modal .pneumatic-icon:not(:has(img)), .modal .measurement-icon:not(:has(img)) {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: transparent;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    transition: all 0.3s ease;
}

/* Modal icon styles - for logo images (no circular background) */
.modal .pump-icon:has(img), .modal .valve-icon:has(img), .modal .valve-sub-icon:has(img), .modal .seal-icon:has(img), .modal .seal-sub-icon:has(img), .modal .material-icon:has(img), .modal .pipe-icon:has(img), .modal .accessory-icon:has(img), .modal .pneumatic-icon:has(img), .modal .measurement-icon:has(img) {
    width: auto;
    height: auto;
    margin: 0 auto 1rem;
    background: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal .pump-icon img, .modal .valve-icon img, .modal .valve-sub-icon img, .modal .seal-icon img, .modal .seal-sub-icon img, .modal .material-icon img, .modal .pipe-icon img, .modal .accessory-icon img, .modal .pneumatic-icon img, .modal .measurement-icon img {
    max-width: 120px;
    max-height: 80px;
    object-fit: contain;
    border-radius: 0;
    transition: all 0.3s ease;
}

/* Main product card icon styles - without circular background */
.product-card .product-icon {
    width: auto;
    height: auto;
    margin: 0 auto 1rem;
    background: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    transition: all 0.3s ease;
}

.product-card .product-icon img {
    max-height: 100%;
    max-width: 200px;
    object-fit: contain;
    border-radius: 0;
    transition: all 0.3s ease;
}

/* Hide icon containers that don't have images - only for modal items, not main product cards */
.modal .pump-icon:empty, .modal .valve-icon:empty, .modal .valve-sub-icon:empty, .modal .seal-icon:empty, .modal .seal-sub-icon:empty, .modal .material-icon:empty, .modal .pipe-icon:empty, .modal .accessory-icon:empty, .modal .pneumatic-icon:empty, .modal .measurement-icon:empty {
    display: none;
}

/* Hide icon containers when they don't contain images - only for modal items, not main product cards */
.modal .pump-icon:not(:has(img)), .modal .valve-icon:not(:has(img)), .modal .valve-sub-icon:not(:has(img)), .modal .seal-icon:not(:has(img)), .modal .seal-sub-icon:not(:has(img)), .modal .material-icon:not(:has(img)), .modal .pipe-icon:not(:has(img)), .modal .accessory-icon:not(:has(img)), .modal .pneumatic-icon:not(:has(img)), .modal .measurement-icon:not(:has(img)) {
    display: none;
}

.modal .pump-item:hover .pump-icon, .modal .valve-item:hover .valve-icon, .modal .valve-sub-item:hover .valve-sub-icon, .modal .seal-item:hover .seal-icon, .modal .seal-sub-item:hover .seal-sub-icon, .modal .material-item:hover .material-icon, .modal .pipe-item:hover .pipe-icon, .modal .accessory-item:hover .accessory-icon, .modal .pneumatic-item:hover .pneumatic-icon, .modal .measurement-item:hover .measurement-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.modal .pump-item:hover .pump-icon img, .modal .material-item:hover .material-icon img, .modal .pipe-item:hover .pipe-icon img, .modal .accessory-item:hover .accessory-icon img, .modal .pneumatic-item:hover .pneumatic-icon img, .modal .measurement-item:hover .measurement-icon img {
    transform: scale(1.1);
}

.pump-item h4, .valve-item h4, .valve-sub-item h4, .seal-item h4, .seal-sub-item h4, .material-item h4, .pipe-item h4, .accessory-item h4, .pneumatic-item h4, .measurement-item h4 {
    color: #2c3e50;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.pump-item:hover h4, .valve-item:hover h4, .valve-sub-item:hover h4, .seal-item:hover h4, .seal-sub-item:hover h4, .material-item:hover h4, .pipe-item:hover h4, .accessory-item:hover h4, .pneumatic-item:hover h4, .measurement-item:hover h4 {
    color: #3498db;
}

.pump-item p, .valve-item p, .valve-sub-item p, .seal-item p, .seal-sub-item p, .material-item p, .pipe-item p, .accessory-item p, .pneumatic-item p, .measurement-item p {
    color: #7f8c8d;
    font-size: 0.9rem;
    line-height: 1.4;
    transition: all 0.3s ease;
}

.pump-item:hover p, .valve-item:hover p, .valve-sub-item:hover p, .seal-item:hover p, .seal-sub-item:hover p, .material-item:hover p, .pipe-item:hover p, .accessory-item:hover p, .pneumatic-item:hover p, .measurement-item:hover p {
    color: #555;
}

/* Image Gallery Modal */
.image-modal .modal-content {
    max-width: 1400px;
    width: 95%;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.image-container {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    opacity: 0.7;
    padding: 10px;
    background-color: white;
}

.image-container.active {
    opacity: 1;
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.3);
    border: 3px solid #3498db;
}

.image-container img {
    width: 100%;
    height: 230px;
    object-fit: contain;
    transition: transform 0.3s ease;
    background-color: #f8f9fa;
    border-radius: 5px;
}

.image-container:hover img {
    transform: scale(1.02);
}

/* Image Filename */
.image-filename {
    background: linear-gradient(135deg, #2c3e50, #34495e);
    color: white;
    text-align: center;
    padding: 0.8rem 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 0 0 10px 10px;
    margin-top: -5px;
    position: relative;
    word-wrap: break-word;
    line-height: 1.3;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.image-container.active .image-filename {
    background: linear-gradient(135deg, #3498db, #2980b9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.image-container:hover .image-filename {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(231, 76, 60, 0.3);
}

/* Gallery Navigation */
.gallery-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.nav-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1.2rem;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn:hover {
    background: linear-gradient(135deg, #2980b9, #1f648b);
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.nav-btn:active {
    transform: scale(0.95);
}

/* Back Button */
.back-btn {
    background: linear-gradient(135deg, #e74c3c, #c0392b) !important;
    width: auto !important;
    min-width: 120px;
    padding: 1rem 1.5rem !important;
    border-radius: 25px !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: bold;
}

.back-btn:hover {
    background: linear-gradient(135deg, #c0392b, #a93226) !important;
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
}

.back-btn span:first-child {
    font-size: 1.4rem;
    transform: rotate(-15deg);
    transition: transform 0.3s ease;
}

.back-btn:hover span:first-child {
    transform: rotate(-30deg) scale(1.2);
}

.back-text {
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Refresh Button */
.refresh-btn {
    background: linear-gradient(135deg, #27ae60, #2ecc71) !important;
    width: auto !important;
    min-width: 110px;
    padding: 1rem 1.5rem !important;
    border-radius: 25px !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: bold;
}

.refresh-btn:hover {
    background: linear-gradient(135deg, #229954, #27ae60) !important;
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.4);
}

.refresh-btn span:first-child {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.refresh-btn:hover span:first-child {
    transform: rotate(180deg) scale(1.1);
}

.refresh-text {
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Modal Responsive */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 5% auto;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-header h2 {
        font-size: 1.4rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .pump-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .valve-grid, .valve-sub-grid, .seal-grid, .seal-sub-grid, .material-grid, .pipe-grid, .accessory-grid, .pneumatic-grid, .measurement-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .pump-item, .valve-item, .valve-sub-item, .seal-item, .seal-sub-item, .material-item, .pipe-item, .accessory-item, .pneumatic-item, .measurement-item {
        padding: 1.5rem;
    }
    
    .modal .pump-icon:not(:has(img)), .modal .valve-icon:not(:has(img)), .modal .valve-sub-icon:not(:has(img)), .modal .seal-icon:not(:has(img)), .modal .seal-sub-icon:not(:has(img)), .modal .material-icon:not(:has(img)), .modal .pipe-icon:not(:has(img)), .modal .accessory-icon:not(:has(img)), .modal .pneumatic-icon:not(:has(img)), .modal .measurement-icon:not(:has(img)) {
        height: 50px;
    }
    
    /* Hide icon containers that don't have images on mobile - only for modal items */
    .modal .pump-icon:not(:has(img)), .modal .valve-icon:not(:has(img)), .modal .valve-sub-icon:not(:has(img)), .modal .seal-icon:not(:has(img)), .modal .seal-sub-icon:not(:has(img)), .modal .material-icon:not(:has(img)), .modal .pipe-icon:not(:has(img)), .modal .accessory-icon:not(:has(img)), .modal .pneumatic-icon:not(:has(img)), .modal .measurement-icon:not(:has(img)) {
        display: none;
    }
    
    .modal .pump-icon img, .modal .valve-icon img, .modal .valve-sub-icon img, .modal .seal-icon img, .modal .seal-sub-icon img, .modal .material-icon img, .modal .pipe-icon img, .modal .accessory-icon img, .modal .pneumatic-icon img, .modal .measurement-icon img {
        max-width: 100px;
        max-height: 60px;
    }
    
    .pump-item h4, .material-item h4, .pipe-item h4, .accessory-item h4, .pneumatic-item h4, .measurement-item h4 {
        font-size: 1rem;
    }
    
    .image-gallery {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .image-container img {
        height: 180px;
        object-fit: contain;
    }
    
    .image-filename {
        font-size: 0.8rem;
        padding: 0.6rem 0.4rem;
    }
    
    .nav-btn {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .back-btn {
        min-width: 100px !important;
        padding: 0.8rem 1rem !important;
        font-size: 0.8rem;
    }
    
    .back-btn span:first-child {
        font-size: 1.2rem;
    }
    
    .back-text {
        font-size: 0.8rem;
    }
    
    .refresh-btn {
        min-width: 90px !important;
        padding: 0.8rem 1rem !important;
        font-size: 0.8rem;
    }
    
    .refresh-text {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        margin: 2% auto;
    }
    
    .pump-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .valve-grid, .valve-sub-grid, .seal-grid, .seal-sub-grid, .material-grid, .pipe-grid, .accessory-grid, .pneumatic-grid, .measurement-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .pump-item, .valve-item, .valve-sub-item, .seal-item, .seal-sub-item, .material-item, .pipe-item, .accessory-item, .pneumatic-item, .measurement-item {
        padding: 1rem;
    }
    
    .modal .pump-icon:not(:has(img)), .modal .valve-icon:not(:has(img)), .modal .valve-sub-icon:not(:has(img)), .modal .seal-icon:not(:has(img)), .modal .seal-sub-icon:not(:has(img)), .modal .material-icon:not(:has(img)), .modal .pipe-icon:not(:has(img)), .modal .accessory-icon:not(:has(img)), .modal .pneumatic-icon:not(:has(img)), .modal .measurement-icon:not(:has(img)) {
        height: 40px;
    }
    
    /* Hide icon containers that don't have images on small mobile - only for modal items */
    .modal .pump-icon:not(:has(img)), .modal .valve-icon:not(:has(img)), .modal .valve-sub-icon:not(:has(img)), .modal .seal-icon:not(:has(img)), .modal .seal-sub-icon:not(:has(img)), .modal .material-icon:not(:has(img)), .modal .pipe-icon:not(:has(img)), .modal .accessory-icon:not(:has(img)), .modal .pneumatic-icon:not(:has(img)), .modal .measurement-icon:not(:has(img)) {
        display: none;
    }
    
    .modal .pump-icon img, .modal .valve-icon img, .modal .valve-sub-icon img, .modal .seal-icon img, .modal .seal-sub-icon img, .modal .material-icon img, .modal .pipe-icon img, .modal .accessory-icon img, .modal .pneumatic-icon img, .modal .measurement-icon img {
        max-width: 80px;
        max-height: 50px;
    }
    
    .image-container img {
        height: 160px;
        object-fit: contain;
    }
    
    .image-filename {
        font-size: 0.7rem;
        padding: 0.5rem 0.3rem;
        line-height: 1.2;
    }
    
    .back-btn {
        min-width: 80px !important;
        padding: 0.6rem 0.8rem !important;
        font-size: 0.7rem;
    }
    
    .back-btn span:first-child {
        font-size: 1rem;
    }
    
    .back-text {
        font-size: 0.7rem;
    }
    
    .refresh-btn {
        min-width: 70px !important;
        padding: 0.6rem 0.8rem !important;
        font-size: 0.7rem;
    }
    
    .refresh-text {
        font-size: 0.7rem;
    }
}

/* Company name styling */
.company-name {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 800;
    color: #2c3e50;
    margin: 1rem 0 2rem 0;
    padding: 0.8rem;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 10px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

/* Reduce contact items size by 50% */
.contact-item {
    transform: scale(0.5);
    transform-origin: center;
    margin: -1rem;
}

/* Make phone contact item wider for hotline text */
.contact-item:nth-child(2) {
    width: 150%;
    margin-left: -25%;
}

.contact-item h4 {
    font-size: 1.5rem !important;
}

.contact-item p {
    font-size: 1.3rem !important;
}

.contact-icon {
    font-size: 3rem !important;
}

/* Align city name with address heading */
.city-align {
    margin-left: -1.5rem;
    display: inline-block;
}

/* Specific alignment for footer address */
.footer-section .city-align {
    margin-left: 1.5rem;
}