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

/* Header Styles */
.header {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.header-content > * {
    flex: 1;
}

.header-content .logo {
    flex: 0 0 auto;
}

.header-content .nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.header-content .header-actions {
    flex: 0 0 auto;
    display: flex;
    justify-content: flex-end;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo-img {
    height: 50px;
    width: auto;
    max-width: 180px;
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-list a {
    text-decoration: none;
    color: #333333;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-list a:hover {
    color: #0B3D91;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #0B3D91;
    transition: width 0.3s ease;
}

.nav-list a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
}

.header-actions .contact-info {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
    align-items: center;
}

.phone-link {
    color: #0B3D91;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.phone-link:hover {
    color: #1a4ba3;
}


.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #0B3D91;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #ffffff;
    padding-top: 80px; /* Отступ для фиксированной шапки */
}

/* Ensure smooth loading for all sections */
section {
    opacity: 1;
    transform: translateY(0);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #0B3D91;
    margin-bottom: 3rem;
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: 
        linear-gradient(135deg, rgba(11, 61, 145, 0.7) 0%, rgba(26, 75, 163, 0.7) 100%),
        url('images/hero-background.png');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    padding: 120px 0;
    text-align: center;
    color: white;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #C0C0C0;
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.cta-button {
    background-color: #C0C0C0;
    color: #0B3D91;
    border: 2px solid #C0C0C0;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
}

.cta-button:hover {
    background-color: transparent;
    color: #C0C0C0;
    border-color: #C0C0C0;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(192, 192, 192, 0.3);
}

/* About Section */
.about {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.2rem;
    color: #333333;
    margin-bottom: 3rem;
    line-height: 1.8;
    font-weight: 400;
}

.advantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage {
    padding: 2.5rem;
    background-color: white;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.advantage:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.advantage h3 {
    color: #0B3D91;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.advantage p {
    color: #333333;
    font-size: 1rem;
    margin-bottom: 0;
    font-weight: 400;
}

/* New About Section Styles */
.subsection-title {
    color: #0B3D91;
    font-size: 1.4rem;
    margin: 3rem 0 1.5rem 0;
    font-weight: 600;
    text-align: left;
}

.company-advantages {
    text-align: left;
    margin: 2rem 0;
}

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

.advantages-list li {
    color: #333333;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.advantages-list li::before {
    content: "•";
    color: #0B3D91;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.pipe-advantages {
    margin-top: 3rem;
}

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

.advantage-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: white;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background-color: #0B3D91;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.advantage-item span {
    color: #333333;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.4;
}

/* Catalogs Section */
.catalogs {
    padding: 100px 0;
    background-color: white;
}

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

.catalog-card {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid #e9ecef;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.catalog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(11, 61, 145, 0.15);
    border-color: #0B3D91;
}

.catalog-image {
    margin-bottom: 1rem;
}

.placeholder-image {
    width: 100%;
    height: 120px;
    background: linear-gradient(135deg, #0B3D91 0%, #1a4ba3 100%);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.catalog-main-image {
    width: 100%;
    height: 120px;
    object-fit: contain;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.catalog-main-image:hover {
    transform: scale(1.05);
}

/* Specific styles for different product types */
.sml-pipe {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.sml-elbow {
    background: linear-gradient(135deg, #28a745 0%, #218838 100%);
}

.sml-tee {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
}

.sml-cross {
    background: linear-gradient(135deg, #fd7e14 0%, #e8630a 100%);
}

.sml-revision {
    background: linear-gradient(135deg, #6f42c1 0%, #5a32a3 100%);
}

.bml-pipe {
    background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
}

.kml-pipe {
    background: linear-gradient(135deg, #343a40 0%, #23272b 100%);
}

.sml-fitting {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.bml-fitting {
    background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
}

.kml-fitting {
    background: linear-gradient(135deg, #343a40 0%, #23272b 100%);
}

.sml-cuff {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.sml-connector {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.accessories {
    background: linear-gradient(135deg, #343a40 0%, #23272b 100%);
}

.catalog-card h3 {
    color: #0B3D91;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.catalog-card p {
    color: #333333;
    margin-bottom: 1rem;
    line-height: 1.5;
    font-weight: 400;
    font-size: 0.9rem;
    flex-grow: 1;
}

.catalog-button {
    background-color: #0B3D91;
    color: white;
    border: 2px solid #0B3D91;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    margin-top: auto;
}

.catalog-button:hover {
    background-color: transparent;
    color: #0B3D91;
    transform: translateY(-2px);
}

.catalog-button.secondary {
    background-color: transparent;
    color: #0B3D91;
    border-color: #0B3D91;
}

.catalog-button.secondary:hover {
    background-color: #0B3D91;
    color: white;
}

.catalog-actions-inline {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: auto;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: start;
}

.contact-content-centered {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info p {
    font-size: 1.1rem;
    color: #333333;
    line-height: 1.8;
    font-weight: 400;
}


/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 1000px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 1rem;
}

.close:hover {
    color: #0B3D91;
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    background-color: white;
}

.catalog-table {
    width: 100%;
    min-width: 600px; /* Минимальная ширина таблицы для горизонтальной прокрутки */
    border-collapse: collapse;
    background-color: white;
}

.catalog-table th,
.catalog-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.catalog-table th {
    background-color: #0B3D91;
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.catalog-table tr:hover {
    background-color: #f8f9fa;
}

.catalog-table tr:last-child td {
    border-bottom: none;
}

/* Footer Styles */
.footer {
    background: linear-gradient(135deg, #0B3D91 0%, #1a4ba3 100%);
    color: white;
    padding: 60px 0 0;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: #C0C0C0;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-logo-img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-logo h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.footer-description {
    color: #C0C0C0;
    line-height: 1.6;
    font-size: 1rem;
    margin-bottom: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #C0C0C0;
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.footer-links a:hover {
    color: white;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: white;
    transition: width 0.3s ease;
}

.footer-links a:hover::after {
    width: 100%;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-item strong {
    color: #C0C0C0;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-item a,
.contact-item span {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: #C0C0C0;
}

.footer-bottom {
    border-top: 1px solid rgba(192, 192, 192, 0.2);
    padding: 2rem 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: #C0C0C0;
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.5;
}

.copyright a {
    color: #C0C0C0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.copyright a:hover {
    color: white;
}

.footer-social {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-social span {
    color: #C0C0C0;
    font-size: 0.9rem;
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(192, 192, 192, 0.1);
    border-radius: 50%;
    color: #C0C0C0;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(192, 192, 192, 0.2);
}

.social-link:hover {
    background-color: rgba(192, 192, 192, 0.2);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Desktop Navigation - ensure it's always visible */
@media (min-width: 769px) {
    .nav {
        display: flex !important;
        position: static !important;
        opacity: 1 !important;
        transform: none !important;
        pointer-events: auto !important;
        background: none !important;
        box-shadow: none !important;
        padding: 0 !important;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Header mobile styles */
    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #ffffff;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        padding: 1rem 0;
        z-index: 999;
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
        pointer-events: none;
    }
    
    .nav.active {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
        padding: 0 2rem;
    }
    
    .nav-list li {
        border-bottom: 1px solid #e9ecef;
    }
    
    .nav-list li:last-child {
        border-bottom: none;
    }
    
    .nav-list li:last-child::after {
        content: '';
        display: block;
        padding: 1rem 0;
        border-top: 1px solid #e9ecef;
    }
    
    
    .nav-list a {
        display: block;
        padding: 1rem 0;
        font-size: 1.1rem;
    }
    
    .nav-list a::after {
        display: none;
    }
    
    
    .menu-toggle {
        display: flex;
    }
    
    .header-actions .contact-info {
        flex-direction: column;
        gap: 0.25rem;
        align-items: flex-end;
    }
    
    .phone-link {
        font-size: 0.8rem;
    }
    
    .header-content {
        padding: 0.75rem 0;
    }
    
    .logo-img {
        height: 40px;
        max-width: 150px;
    }
    
    body {
        padding-top: 70px;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .catalog-card {
        padding: 1rem;
        min-height: 250px;
    }
    
    .placeholder-image {
        height: 100px;
        font-size: 0.9rem;
    }
    
    .catalog-main-image {
        height: 100px;
    }
    
    .catalog-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }
    
    .catalog-card p {
        font-size: 0.85rem;
        margin-bottom: 0.75rem;
    }
    
    .catalog-button {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .catalog-actions-inline {
        gap: 0.5rem;
    }
    
    .advantages {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1rem;
    }
    
    .table-container {
        margin: 1rem 0;
        border-radius: 6px;
    }
    
    .catalog-table {
        font-size: 0.9rem;
        min-width: 500px; /* Уменьшенная минимальная ширина для мобильных */
    }
    
    .catalog-table th,
    .catalog-table td {
        padding: 8px 10px;
        white-space: nowrap; /* Предотвращаем перенос текста */
    }
    
    /* Footer mobile styles */
    .footer {
        margin-top: 60px;
        padding: 40px 0 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 2rem;
    }
    
    .footer-section {
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .footer-social {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    /* Header extra small screens */
    .header-content {
        padding: 0.5rem 0;
    }
    
    .logo-img {
        height: 35px;
        max-width: 130px;
    }
    
    body {
        padding-top: 60px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .about,
    .catalogs,
    .contact {
        padding: 60px 0;
    }
    
    /* Mobile styles for new about section */
    .subsection-title {
        font-size: 1.2rem;
        margin: 2rem 0 1rem 0;
        text-align: center;
    }
    
    .company-advantages {
        text-align: center;
        margin: 1.5rem 0;
    }
    
    .advantages-list li {
        font-size: 1rem;
        margin-bottom: 0.6rem;
        padding-left: 1.2rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .advantage-item {
        padding: 1rem;
        gap: 0.8rem;
    }
    
    .advantage-icon {
        width: 35px;
        height: 35px;
    }
    
    .advantage-item span {
        font-size: 0.9rem;
    }
    
    .catalog-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .catalog-card {
        padding: 1rem;
        min-height: 220px;
    }
    
    .placeholder-image {
        height: 80px;
        font-size: 0.8rem;
    }
    
    .catalog-main-image {
        height: 80px;
    }
    
    .catalog-card h3 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .catalog-card p {
        font-size: 0.8rem;
        margin-bottom: 0.75rem;
    }
    
    .catalog-button {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    /* Extra mobile styles for tables */
    .table-container {
        margin: 0.75rem 0;
    }
    
    .catalog-table {
        font-size: 0.8rem;
        min-width: 450px; /* Еще более компактная ширина */
    }
    
    .catalog-table th,
    .catalog-table td {
        padding: 6px 8px;
        font-size: 0.8rem;
    }
    
    /* Footer extra small screens */
    .footer {
        margin-top: 50px;
        padding: 30px 0 0;
    }
    
    .footer-content {
        gap: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .footer-section h4 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    
    .footer-logo-img {
        height: 35px;
    }
    
    .footer-logo h3 {
        font-size: 1.3rem;
    }
    
    .footer-description {
        font-size: 0.9rem;
    }
    
    .footer-links a {
        font-size: 0.9rem;
    }
    
    .contact-item strong {
        font-size: 0.8rem;
    }
    
    .contact-item a,
    .contact-item span {
        font-size: 0.9rem;
    }
    
    .footer-bottom {
        padding: 1.5rem 0;
    }
    
    .copyright {
        font-size: 0.8rem;
    }
    
    .footer-social span {
        font-size: 0.8rem;
    }
    
    .social-link {
        width: 35px;
        height: 35px;
    }
    
    .social-link svg {
        width: 18px;
        height: 18px;
    }
}

/* Subcategories and Items Grid Styles */
.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.subcategory-card {
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.subcategory-card:hover {
    border-color: #2c5aa0;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(44, 90, 160, 0.15);
}

.subcategory-card h3 {
    color: #2c5aa0;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.subcategory-card p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.item-card {
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.item-card:hover {
    border-color: #2c5aa0;
    background: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(44, 90, 160, 0.1);
}

.item-card h3 {
    color: #2c5aa0;
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Breadcrumb Navigation */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: #666;
}

.breadcrumb a {
    color: #2c5aa0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #1e3d6f;
}

.breadcrumb-separator {
    color: #ccc;
}

/* Enhanced Modal Styles */
.modal-content h2 {
    color: #2c5aa0;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    text-align: center;
}

.modal-content h3 {
    color: #2c5aa0;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

/* Page Styles */
.breadcrumb-section {
    background: #f8f9fa;
    padding: 0.5rem 0;
    margin-top: 0;
}

.page-header {
    background: linear-gradient(135deg, #2c5aa0 0%, #1e3d6f 100%);
    color: white;
    padding: 0.5rem 0 2rem 0;
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-description {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.product-categories {
    padding: 1rem 0 4rem 0;
}

/* Catalog card as link */
.catalog-card {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: all 0.3s ease;
}

.catalog-card:hover {
    text-decoration: none;
    color: inherit;
    transform: translateY(-5px);
}

/* Product Overview Layout */
.product-overview {
    padding: 0.5rem 0 3rem 0;
    background: #ffffff;
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.product-image-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-image-container {
    width: 100%;
    max-width: 400px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-main-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.placeholder-image.sml-pipe-large {
    background: linear-gradient(45deg, #dc3545 0%, #c82333 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 2rem;
}

.placeholder-image.sml-elbow-large {
    background: linear-gradient(45deg, #28a745 0%, #218838 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.3);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image.sml-tee-large {
    background: linear-gradient(45deg, #17a2b8 0%, #138496 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(23, 162, 184, 0.3);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image.sml-cross-large {
    background: linear-gradient(45deg, #fd7e14 0%, #e8630a 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(253, 126, 20, 0.3);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image.sml-revision-large {
    background: linear-gradient(45deg, #6f42c1 0%, #5a32a3 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(111, 66, 193, 0.3);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-info-section {
    padding: 2rem 0;
}

.product-brand {
    font-size: 2rem;
    font-weight: 700;
    color: #2c5aa0;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.product-stack {
    margin-bottom: 2rem;
}

.pipe-stack {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pipe-item {
    background: #ff6b35;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1.1rem;
    text-align: center;
    box-shadow: 0 3px 10px rgba(255, 107, 53, 0.3);
}

.product-description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #555;
    text-align: justify;
}

/* Product Characteristics */
.product-characteristics {
    padding: 2rem 0 3rem 0;
    background: #f8f9fa;
}

.product-characteristics .section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c5aa0;
    font-size: 2rem;
    font-weight: 700;
}

.table-subtitle {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: #0B3D91;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    border-left: 4px solid #0B3D91;
}

/* Catalog Actions */
.catalog-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 3rem;
    padding: 2rem 0;
}

.action-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    text-decoration: none;
    border: 2px solid transparent;
    min-width: 200px;
    justify-content: center;
}

.action-button.download {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border-color: #28a745;
}

.action-button.download:hover {
    background: linear-gradient(135deg, #20c997 0%, #28a745 100%);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(40, 167, 69, 0.3);
}

.action-button.order {
    background: linear-gradient(135deg, #0B3D91 0%, #1a4ba3 100%);
    color: white;
    border-color: #0B3D91;
}

.action-button.order:hover {
    background: linear-gradient(135deg, #1a4ba3 0%, #0B3D91 100%);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(11, 61, 145, 0.3);
}

/* Order Form Styles */
.order-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.submit-order-button {
    background: linear-gradient(135deg, #0B3D91 0%, #1a4ba3 100%);
    color: white;
    border: 2px solid #0B3D91;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    min-width: 180px;
}

.submit-order-button:hover {
    background: linear-gradient(135deg, #1a4ba3 0%, #0B3D91 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(11, 61, 145, 0.3);
}

.cancel-button {
    background: white;
    color: #6c757d;
    border: 2px solid #6c757d;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    min-width: 120px;
}

.cancel-button:hover {
    background: #6c757d;
    color: white;
    transform: translateY(-2px);
}

/* Mobile responsive for new elements */
@media (max-width: 768px) {
    .subcategories-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .items-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .subcategory-card,
    .item-card {
        padding: 1rem;
    }
    
    .subcategory-card h3 {
        font-size: 1.1rem;
    }
    
    .item-card h3 {
        font-size: 1rem;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .page-description {
        font-size: 0.9rem;
    }
    
    .page-header {
        padding: 0.1rem 0 0.8rem 0;
    }
    
    .breadcrumb-section {
        padding: 0.2rem 0;
    }
    
    .product-categories {
        padding: 0.5rem 0 2rem 0;
    }
    
    .breadcrumb-section {
        margin-top: 0;
        padding: 0.3rem 0;
    }
    
    .product-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-image-container {
        max-width: 300px;
        height: 250px;
    }
    
    .product-brand {
        font-size: 1.5rem;
    }
    
    .product-description {
        font-size: 1rem;
    }
    
    .product-characteristics .section-title {
        font-size: 1.5rem;
    }
    
    .table-subtitle {
        font-size: 1.2rem;
        padding: 0.8rem;
        margin-bottom: 1rem;
    }
    
    /* Catalog actions mobile styles */
    .catalog-actions {
        flex-direction: column;
        gap: 1rem;
        margin-top: 2rem;
        padding: 1.5rem 0;
    }
    
    .action-button {
        min-width: auto;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .submit-order-button,
    .cancel-button {
        width: 100%;
        min-width: auto;
    }
}

/* Contact Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: #ffffff;
    margin: 5% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    color: white;
    padding: 2rem;
    text-align: center;
}

.modal-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.modal-header p {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0;
}

.modal-body {
    padding: 2rem;
}

.close {
    color: white;
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    transition: opacity 0.3s ease;
}

.close:hover,
.close:focus {
    opacity: 0.7;
}

.contact-info {
    text-align: center;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #374151;
}

.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-button.whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
}

.contact-button.whatsapp:hover {
    background: linear-gradient(135deg, #128c7e, #075e54);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}

.contact-button.telegram {
    background: linear-gradient(135deg, #0088cc, #006699);
    color: white;
}

.contact-button.telegram:hover {
    background: linear-gradient(135deg, #006699, #004466);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 136, 204, 0.3);
}

.contact-details {
    background-color: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
}

.contact-details p {
    margin: 0.5rem 0;
    font-size: 1rem;
    color: #374151;
}

.contact-details strong {
    color: #1e3a8a;
}

.contact-details-inline {
    margin-top: 1.5rem;
    text-align: center;
}

.contact-details-inline p {
    margin: 0.5rem 0;
    font-size: 1rem;
    color: #374151;
}

.contact-details-inline a {
    color: #3b82f6;
    text-decoration: none;
}

.contact-details-inline a:hover {
    text-decoration: underline;
}

/* Contact Mini Buttons */
.contact-mini-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    align-items: center;
    margin-top: 1.5rem;
}

.contact-mini-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    text-decoration: none;
    color: #374151;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 200px;
    justify-content: flex-start;
}

.contact-mini-button:hover {
    background-color: #e9ecef;
    border-color: #dee2e6;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-mini-button.whatsapp {
    color: #25d366;
}

.contact-mini-button.whatsapp:hover {
    background-color: #ecfdf5;
    border-color: #a7f3d0;
    color: #25d366;
}

.contact-mini-button.telegram {
    color: #0088cc;
}

.contact-mini-button.telegram:hover {
    background-color: #eff6ff;
    border-color: #93c5fd;
    color: #0088cc;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Mobile styles for contact modal */
@media (max-width: 768px) {
    .modal-content {
        margin: 10% auto;
        width: 95%;
        max-width: none;
    }
    
    .modal-header {
        padding: 1.5rem;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
        color: white;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .contact-buttons {
        gap: 0.8rem;
    }
    
    .contact-button {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    
    .contact-details {
        padding: 1rem;
    }
}

/* Contact Section Inline Buttons Styles */
.contact-methods {
    margin-top: 1.5rem;
    text-align: center;
}

.contact-methods p {
    font-size: 1rem;
    color: #374151;
    margin-bottom: 1rem;
}

.contact-buttons-inline {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-button-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    min-width: 140px;
    justify-content: center;
}

.contact-button-inline.whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
}

.contact-button-inline.whatsapp:hover {
    background: linear-gradient(135deg, #128c7e, #075e54);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.contact-button-inline.telegram {
    background: linear-gradient(135deg, #0088cc, #006699);
    color: white;
}

.contact-button-inline.telegram:hover {
    background: linear-gradient(135deg, #006699, #004466);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.3);
}

/* Footer Social Links Updates */
.social-link.whatsapp:hover {
    color: #25d366;
    transform: translateY(-2px);
}

.social-link.telegram:hover {
    color: #0088cc;
    transform: translateY(-2px);
}

/* Mobile styles for contact section buttons */
@media (max-width: 768px) {
    .contact-buttons-inline {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }
    
    .contact-button-inline {
        width: 100%;
        max-width: 250px;
        padding: 0.8rem 1rem;
        font-size: 0.95rem;
    }
}