*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c5282;
    --secondary-color: #3182ce;
    --accent-color: #4299e1;
    --text-color: #2d3748;
    --text-light: #718096;
    --bg-color: #ffffff;
    --bg-light: #f7fafc;
    --bg-dark: #1a365d;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 15px;
    color: var(--text-color);
    line-height: 1.3;
}

p {
    margin-bottom: 20px;
    color: var(--text-light);
}

a {
    text-decoration: none;
    color: var(--secondary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 500;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    z-index: -1;
}

.btn:hover:before {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-light {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-light:hover {
    background-color: #f8fafc;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

.top-bar {
    background-color: var(--bg-dark);
    color: white;
    padding: 10px 0;
    font-size: 14px;
}

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

.contact-info span {
    margin-right: 20px;
}

.contact-info i {
    margin-right: 5px;
    color: var(--accent-color);
}

.social-icons a {
    color: white;
    margin-left: 15px;
    font-size: 16px;
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--accent-color);
}

header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 15px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    color: var(--primary-color);
}

.logo h1 span {
    color: var(--secondary-color);
    font-weight: 400;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
}

nav ul li a:hover:after,
nav ul li a.active:after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
}

.hamburger span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.hero {
    position: relative;
    height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(26, 54, 93, 0.8), rgba(26, 54, 93, 0.8)), url('https://images.unsplash.com/photo-1477959858617-67f85cf4f1df?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    z-index: -1;
}

.hero-content {
    width: 100%;
    color: white;
    text-align: center;
    z-index: 1;
}

.hero h2 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 20px;
    font-weight: 700;
    animation: fadeInDown 1s ease;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.9);
    animation: fadeInUp 1s ease;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1.2s ease;
}

.features {
    padding: 80px 0 40px;
    background-color: white;
    position: relative;
    margin-top: -80px;
    z-index: 10;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-box {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.feature-box.scrolled {
    opacity: 1;
    transform: translateY(0);
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 28px;
    color: var(--primary-color);
}

.feature-box h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-box p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.section-header.scrolled {
    opacity: 1;
    transform: translateY(0);
}

.section-header.light .section-title,
.section-header.light .section-subtitle {
    color: white;
}

.section-subtitle {
    display: block;
    font-size: 1rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    position: relative;
}

.section-divider {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.section-divider span {
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    position: relative;
}

.section-divider span:before,
.section-divider span:after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    top: -1.5px;
}

.section-divider span:before {
    left: -10px;
}

.section-divider span:after {
    right: -10px;
}

.section-header.light .section-divider span {
    background-color: white;
}

.section-header.light .section-divider span:before,
.section-header.light .section-divider span:after {
    background-color: var(--accent-color);
}

.about {
    padding: 100px 0;
    background-color: var(--bg-light);
    overflow: hidden;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.about-content.scrolled {
    opacity: 1;
    transform: translateY(0);
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
}

.about-text .lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 25px;
    border-left: 3px solid var(--primary-color);
    padding-left: 20px;
}

.about-buttons {
    margin-top: 30px;
}

.image-frame {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-frame:before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 10px solid rgba(44, 82, 130, 0.1);
    top: 20px;
    left: 20px;
    z-index: -1;
    border-radius: 10px;
}

.image-frame img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.image-frame:hover img {
    transform: scale(1.05);
}

.services {
    padding: 100px 0;
    background-color: var(--bg-dark);
    color: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    z-index: 1;
    padding: 40px 30px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.service-card.scrolled {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(44, 82, 130, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 28px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.read-more i {
    margin-left: 5px;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--secondary-color);
}

.read-more:hover i {
    transform: translateX(5px);
}

.testimonials {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial {
    display: none;
}

.testimonial:first-child {
    display: block;
}

.testimonial-content {
    background-color: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    position: relative;
    margin-bottom: 30px;
}

.testimonial-content:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50px;
    width: 30px;
    height: 30px;
    background-color: white;
    transform: rotate(45deg);
    box-shadow: var(--shadow-sm);
    z-index: -1;
}

.quote-icon {
    position: absolute;
    top: -15px;
    left: 30px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quote-icon i {
    color: white;
    font-size: 18px;
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-left: 20px;
}

.testimonial-author h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.testimonial-author span {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.testimonial-controls button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: white;
    border: none;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonial-controls button i {
    color: var(--primary-color);
}

.testimonial-controls button:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.testimonial-controls button:hover i {
    color: white;
}

.hidden-partners-section {
    display: none;
}

.partners {
    padding: 80px 0;
    background-color: white;
}

.partners-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.partner {
    flex: 1;
    min-width: 150px;
    text-align: center;
}

.partner-logo {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.partner-logo span {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--bg-dark));
    position: relative;
    overflow: hidden;
}

.cta:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1504917595217-d4dc5ebe6122?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
}

.cta a {
    color: rgba(255, 255, 255, 0.8);
}

.cta a:hover {
    color: black;
}

.footer-top {
    background-color: #1e3a5f;
    padding: 80px 0 40px;
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
}

.footer-widget h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-widget h3:after {
    content: '';
    position: absolute;
    width: 50px;
    height: 2px;
    background: var(--accent-color);
    bottom: 0;
    left: 0;
}

.footer-widget p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
}

.footer-widget .social-icons {
    display: flex;
    gap: 15px;
}

.footer-widget .social-icons a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-widget .social-icons a i {
    color: white;
}

.footer-widget .social-icons a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    display: inline-block;
    position: relative;
    padding-left: 15px;
}

.footer-links li a:before {
    content: '\f105';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--accent-color);
}

.footer-links li a:hover {
    color: white;
    transform: translateX(5px);
}

.contact-info {
    list-style: none;
}

.contact-info li {
    display: flex;
    margin-bottom: 20px;
    align-items: flex-start;
}

.contact-info li i {
    color: var(--accent-color);
    margin-right: 15px;
    font-size: 18px;
    margin-top: 5px;
}

.contact-info li span {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
    background-color: #15293f;
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
    font-size: 0.9rem;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1200px) {
    .hero h2 {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-text {
        order: 2;
    }
    
    .about-image {
        order: 1;
        margin-bottom: 30px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .top-bar .contact-info span:last-child {
        display: none;
    }
    
nav ul {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        z-index: 1000;
    }
    
    nav ul.show {
        display: flex;
    }
    
    nav ul li {
        margin: 15px 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .hero {
        height: 600px;
    }
    
    .hero h2 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        max-width: 250px;
        margin: 0 auto;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-content {
        padding: 30px 20px;
    }
    
    .partners-grid {
        justify-content: center;
    }
    
    .partner {
        min-width: 120px;
    }
}

@media (max-width: 576px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        height: 500px;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .about, .services, .testimonials, .partners, .cta {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    .cta h2 {
        font-size: 1.8rem;
    }
}

.page-header {
    position: relative;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.page-header:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(26, 54, 93, 0.8), rgba(26, 54, 93, 0.8)), url('https://images.unsplash.com/photo-1504917595217-d4dc5ebe6122?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    z-index: -1;
}

.page-header h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 20px;
    font-weight: 700;
    animation: fadeInDown 1s ease;
}

.breadcrumbs {
    display: flex;
    justify-content: center;
    gap: 10px;
    animation: fadeInUp 1s ease;
}

.breadcrumbs a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.breadcrumbs a:hover {
    color: white;
}

.breadcrumbs span {
    color: var(--accent-color);
}

.materials-intro {
    padding: 80px 0;
    background-color: white;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.material-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.material-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.material-image {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.material-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.material-card:hover .material-image img {
    transform: scale(1.1);
}

.material-category {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.material-content {
    padding: 30px;
}

.material-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.material-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.material-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.material-spec {
    background-color: var(--bg-light);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
}

.material-spec i {
    color: var(--primary-color);
    margin-right: 5px;
}

.material-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.material-supplier {
    font-size: 0.9rem;
    color: var(--text-light);
}

.material-supplier span {
    color: var(--primary-color);
    font-weight: 500;
}

.material-link {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
}

.material-link i {
    margin-left: 5px;
    transition: var(--transition);
}

.material-link:hover i {
    transform: translateX(5px);
}

.filter-section {
    margin-bottom: 40px;
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 30px;
}

.filter-tab {
    padding: 8px 20px;
    border-radius: 30px;
    background-color: var(--bg-light);
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.filter-tab.active, .filter-tab:hover {
    background-color: var(--primary-color);
    color: white;
}

.filter-search {
    position: relative;
    max-width: 500px;
}

.filter-search input {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
}

.filter-search button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.filter-search button:hover {
    background-color: var(--secondary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-category {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.project-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.9rem;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.project-meta span {
    color: var(--primary-color);
    font-weight: 500;
}

.professionals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.professional-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.professional-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.professional-image {
    height: 300px;
    overflow: hidden;
    position: relative;
}

.professional-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.professional-card:hover .professional-image img {
    transform: scale(1.1);
}

.professional-content {
    padding: 30px;
    text-align: center;
}

.professional-content h3 {
    font-size: 1.4rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.professional-content .profession {
    color: var(--primary-color);
    font-weight: 500;
    display: block;
    margin-bottom: 15px;
}

.professional-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.professional-social {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.professional-social a {
    width: 35px;
    height: 35px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition);
}

.professional-social a:hover {
    background-color: var(--primary-color);
    color: white;
}

.contact-btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 500;
    transition: var(--transition);
}

.contact-btn:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.contact-section {
    padding: 80px 0;
    background-color: white;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    margin-top: 50px;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.contact-info h3:after {
    content: '';
    position: absolute;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
}

.contact-info p {
    margin-bottom: 30px;
    color: var(--text-light);
}

.contact-details {
    margin-bottom: 40px;
}

.contact-detail {
    display: flex;
    margin-bottom: 20px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(44, 82, 130, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

.contact-icon i {
    color: var(--primary-color);
    font-size: 20px;
}

.contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.contact-text p {
    color: var(--text-light);
    margin: 0;
}

.contact-map {
    height: 250px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.contact-form {
    background-color: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.contact-form h3:after {
    content: '';
    position: absolute;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    color: var(--text-color);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

textarea.form-control {
    height: 150px;
    resize: vertical;
}

.submit-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
}

.submit-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        order: 1;
    }
    
    .contact-info {
        order: 2;
    }
}

.sustainability-section {
    padding: 80px 0;
    background-color: white;
}

.sustainability-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    align-items: center;
    margin-top: 50px;
}

.sustainability-content h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.sustainability-content h3:after {
    content: '';
    position: absolute;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
}

.sustainability-content p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.sustainability-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: block;
}

.stat-label {
    color: var(--text-light);
    font-size: 1rem;
}

.sustainability-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.sustainability-image:before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 10px solid rgba(44, 82, 130, 0.1);
    top: 20px;
    left: 20px;
    z-index: -1;
    border-radius: 10px;
}

.sustainability-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
}

.principles-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.principle-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.principle-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.principle-card:before {
    content: '';
    position: absolute;
    width: 100%;
    height: 5px;
    background: var(--primary-color);
    top: 0;
    left: 0;
}

.principle-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(44, 82, 130, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.principle-icon i {
    font-size: 24px;
    color: var(--primary-color);
}

.principle-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.principle-card p {
    color: var(--text-light);
}

@media (max-width: 992px) {
    .sustainability-container {
        grid-template-columns: 1fr;
    }
    
    .sustainability-image {
        order: 1;
        margin-bottom: 30px;
    }
    
    .sustainability-content {
        order: 2;
    }
    
    .principles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .principles-grid {
        grid-template-columns: 1fr;
    }
    
    .sustainability-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.project-process {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.process-steps {
    margin-top: 50px;
}

.process-step {
    display: flex;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.process-step.scrolled {
    opacity: 1;
    transform: translateY(0);
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.2;
    margin-right: 30px;
    line-height: 1;
    min-width: 80px;
    text-align: center;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.step-content p {
    color: var(--text-light);
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 50px;
    gap: 10px;
}

.pagination-arrow,
.pagination-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: white;
    color: var(--text-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.pagination-number.active,
.pagination-number:hover,
.pagination-arrow:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.projects-intro,
.materials-intro {
    padding: 80px 0;
    background-color: white;
}

.intro-text {
    max-width: 800px;
    margin: 0 auto 50px;
}

.intro-text .lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 25px;
}

.benefits-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.benefit-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.benefit-card.scrolled {
    opacity: 1;
    transform: translateY(0);
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(44, 82, 130, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-icon i {
    font-size: 28px;
    color: var(--primary-color);
}

.benefit-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.benefit-card p {
    color: var(--text-light);
}

@media (max-width: 768px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}