:root {
    --primary-blue: #1E3A8A;
    --primary-orange: #F97316;
    --white: #FFFFFF;
    --gray: #D1D5DB;
    --dark-gray: #4B5563;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    overflow-x: hidden;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo-accent {
    color: var(--primary-orange);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-list a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-orange);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    background: var(--primary-blue);
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    color: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: var(--primary-orange);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.secondary-button {
    display: inline-block;
    padding: 15px 30px;
    background: transparent;
    color: var(--white);
    text-decoration: none;
    border: 2px solid var(--white);
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--white);
    color: var(--primary-orange);
    transform: translateY(-3px);
}

.secondary-button:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--white);
}

.features .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: var(--transition);
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    margin-bottom: 20px;
    color: var(--primary-orange);
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.learn-more {
    display: inline-block;
    margin-top: 20px;
    color: var(--primary-orange);
    text-decoration: none;
    font-weight: 600;
    position: relative;
}

.learn-more::after {
    content: '→';
    margin-left: 5px;
    transition: var(--transition);
}

.learn-more:hover::after {
    transform: translateX(5px);
}

/* Footer */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-orange);
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

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

.social-icon:hover {
    background: var(--primary-orange);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    margin-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--primary-orange);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
    transform: scale(0);
}

.back-to-top.visible {
    opacity: 1;
    transform: scale(1);
}

/* Live Chat Button */
.live-chat {
    position: fixed;
    bottom: 20px;
    right: 80px;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    transition: var(--transition);
}

.live-chat:hover {
    transform: scale(1.1);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .features .container {
        grid-template-columns: 1fr;
    }
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav.active {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--white);
        z-index: 1001;
        padding: 80px 20px;
    }

    .nav.active .nav-list {
        flex-direction: column;
        align-items: center;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.section-header p {
    color: var(--dark-gray);
    font-size: 1.1rem;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Services Section */
.services {
    padding: 100px 0;
    background: var(--gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-orange);
    margin-bottom: 20px;
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: var(--gray);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.project-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.project-card:hover .project-info {
    transform: translateY(0);
}

.project-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary-orange);
    text-decoration: none;
    font-weight: 600;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--gray);
    border-radius: 5px;
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
}

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

.submit-btn {
    width: 100%;
    padding: 15px;
    background: var(--primary-orange);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background: var(--primary-blue);
}

.contact-info {
    padding: 40px;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-orange);
    margin-right: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 40px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-orange);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .project-filters {
        flex-wrap: wrap;
    }

    .section-header h2 {
        font-size: 2rem;
    }
}