:root {
    --primary-blue: #1a73e8;
    --secondary-blue: #4285f4;
    --dark-blue: #0d47a1;
    --light-blue: #e8f0fe;
    --white: #ffffff;
    --gray: #f5f5f5;
    --dark-gray: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    line-height: 1.6;
    color: var(--dark-gray);
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-stack {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 28px;
    width: auto;
    object-fit: contain;
}

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

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.logo a:hover {
    opacity: 0.9;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
    padding: 0.5rem;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-blue);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-selector {
    position: relative;
    display: inline-block;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

.flag-icon {
    width: 20px;
    height: 20px;
    object-fit: cover;
    border-radius: 2px;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--white);
    border: 1px solid var(--primary-blue);
    border-radius: 4px;
    padding: 0.5rem;
    margin-top: 0.5rem;
    min-width: 150px;
    display: none;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lang-dropdown.show {
    display: block;
    opacity: 1;
    visibility: visible;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem;
    background: none;
    border: none;
    color: var(--dark-gray);
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
}

.lang-option:hover {
    background-color: var(--light-blue);
    color: var(--primary-blue);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

#networkCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.3s;
    opacity: 0;
    animation-fill-mode: forwards;
    min-height: 2.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero p span {
    display: inline-block;
    vertical-align: middle;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--white);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.3s ease;
    animation: fadeInUp 1s ease 0.6s;
    opacity: 0;
    animation-fill-mode: forwards;
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* About Section */
.about {
    padding: 5rem 0;
    background-color: var(--gray);
}

.about h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.stat:hover {
    transform: translateY(-5px);
}

.stat h3 {
    color: var(--primary-blue);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* Services Section */
.services {
    padding: 5rem 0;
    background-color: var(--white);
}

.services h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

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

@media (min-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1199px) and (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

.service-card {
    padding: 2rem;
    background-color: var(--light-blue);
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-blue);
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background-color: var(--gray);
}

.contact h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

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

.submit-button {
    padding: 1rem;
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background-color: var(--dark-blue);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

/* Footer */
.footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--white);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--light-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-right {
        flex-direction: column;
        align-items: flex-end;
    }

    .language-selector {
        margin-bottom: 0;
        order: 2;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.3s ease, opacity 0.3s ease;
        pointer-events: none;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 1rem;
        width: 100%;
    }

    .navbar {
        padding: 1rem;
    }

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

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .logo-img {
        height: 30px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }

    .lang-dropdown {
        position: fixed;
        top: auto;
        right: auto;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 300px;
        margin-top: 0.5rem;
    }

    .menu-toggle {
        order: 1;
    }

    .language-selector {
        order: 2;
        margin: 1rem 0;
    }

    .nav-links {
        order: 3;
    }

    .mobile-language-selector {
        display: block;
        width: 100%;
        padding: 1rem;
        text-align: center;
    }

    .desktop-language-selector {
        display: none;
    }

    .mobile-language-selector .language-selector {
        display: inline-block;
    }

    .mobile-language-selector .lang-btn {
        width: auto;
        padding: 0.5rem 1rem;
    }

    .mobile-language-selector .lang-dropdown {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 300px;
    }
}

/* Alert Styles */
.alert {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background-color: #4CAF50;
    border-left: 4px solid #388E3C;
}

.alert-error {
    background-color: #F44336;
    border-left: 4px solid #D32F2F;
}

.alert i {
    font-size: 1.2rem;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.mobile-language-selector {
    display: none;
}

.desktop-language-selector {
    display: block;
}

@media (max-width: 768px) {
    .mobile-language-selector {
        display: block;
        width: 100%;
        padding: 1rem;
        text-align: center;
    }

    .desktop-language-selector {
        display: none;
    }

    .mobile-language-selector .language-selector {
        display: inline-block;
    }

    .mobile-language-selector .lang-btn {
        width: auto;
        padding: 0.5rem 1rem;
    }

    .mobile-language-selector .lang-dropdown {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 300px;
    }
}

/* Cursor Animation */
.cursor {
    display: inline-block;
    position: relative;
    margin-left: 2px;
    vertical-align: middle;
}

.cursor::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 2px;
    height: 1em;
    background-color: var(--white);
    animation: blink 1s step-end infinite;
    transform: translateY(-50%);
}

@keyframes blink {
    from, to {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

/* Technologies Section */
.technologies {
    padding: 5rem 0;
    background-color: var(--white);
    overflow: hidden;
    position: relative;
    width: 100%;
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.tech-stack h3,
.methodologies h3 {
    color: var(--primary-blue);
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

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

.methodology-card {
    background-color: var(--gray);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.methodology-card:hover {
    transform: translateY(-5px);
}

.methodology-card i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.methodology-card h4 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

/* Process Section */
.process {
    padding: 5rem 0;
    background-color: var(--gray);
}

.process h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.process-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.process-image {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
}

.process-ill {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: 100%;
    background: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    display: block;
    margin: 0 auto;
}

.process-steps {
    display: grid;
    gap: 1.5rem;
}

.process-step {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.process-step:hover {
    transform: translateY(-5px);
}

.step-number {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h3 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

/* Benefits Section */
.benefits {
    padding: 5rem 0;
    background-color: var(--white);
}

.benefits h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background-color: var(--gray);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-10px);
}

.benefit-card i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.benefit-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.technologies h2 {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.tech-stack {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 2rem 0;
}

.tech-stack-track {
    display: flex;
    gap: 2rem;
    animation: scrollTech 40s linear infinite;
    padding: 1rem 0;
    width: max-content;
}

.tech-stack-track:hover {
    animation-play-state: paused;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    min-width: 150px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
    flex-shrink: 0;
}

.tech-item:hover {
    opacity: 1;
}

.tech-logo {
    width: 90px;
    height: 90px;
    object-fit: contain;
    filter: grayscale(100%);
    transition: filter 0.8s ease;
}

.tech-item:hover .tech-logo {
    filter: grayscale(0%);
}

.tech-item span {
    font-size: 1rem;
    color: var(--dark-gray);
    font-weight: 500;
}

@keyframes scrollTech {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 1rem));
    }
}

@media (max-width: 768px) {
    .tech-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .methodology-grid {
        grid-template-columns: 1fr;
    }
    
    .process-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .process-image {
        order: -1;
    }
    
    .process-ill {
        max-height: 300px;
    }
    
    .process-step {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-item {
        padding: 1rem;
        min-width: 120px;
    }
    
    .tech-logo {
        width: 40px;
        height: 40px;
    }
    
    .tech-item span {
        font-size: 0.9rem;
    }
}

@keyframes floatUpDown {
    0% { transform: translateY(0); }
    50% { transform: translateY(-18px); }
    100% { transform: translateY(0); }
}

.animated-success {
    animation: none;
    transition: none;
    border-radius: 0;
}