/* Root Variables */
:root {
    /* Colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --accent-primary: #6366f1;
    --accent-secondary: #818cf8;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    /* Gradients */
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #818cf8 100%);
    --gradient-2: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--space-sm);
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: left;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--transition-normal) forwards;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    margin-bottom: var(--space-lg);
    font-weight: 300;
    text-align: left;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--transition-normal) 0.2s forwards;
}

/* Layout Containers */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

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

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

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

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-1);
    z-index: 1000;
    transition: width 0.1s var(--transition-fast);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(15, 23, 42, 0.95);
}

.navbar.hide {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    height: 80px;
    display: flex;
    align-items: center;
    transition: all var(--transition-normal);
}

.navbar.scrolled .nav-logo {
    height: 50px;
}

.logo-img {
    height: 100%;
    width: auto;
    object-fit: contain;
    max-width: 200px;
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-xl) 0;
    background: var(--gradient-2);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
}

.hero-content {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s var(--transition-normal) 0.2s forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4rem);
    margin-bottom: var(--space-md);
}

/* Neural Network Styles */
.hero-visual {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 600px;
    overflow: hidden;
}

.neural-network {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
}

/* SVG Network */
.network-connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Connection Lines */
.network-connections line {
    stroke: url(#lineGradient);
    stroke-width: 1;
    filter: url(#glow);
}

.network-connections .pulse {
    animation: pulseLine 3s infinite;
}

/* Synapses */
.synapses circle {
    fill: var(--accent-primary);
    filter: url(#glow);
}

.synapse-pulse {
    animation: pulseNode 2s infinite;
}

/* Logo Container */
.logo-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

/* Logo Items */
.logo-item {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.logo-item:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.4);
}

/* Logo Positioning */
.logo-item.central {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--accent-primary);
}

.logo-item.central i {
    font-size: 2rem;
    color: var(--text-primary);
}

.logo-item[data-position="top-left"] { top: 20%; left: 20%; }
.logo-item[data-position="top-right"] { top: 20%; right: 20%; }
.logo-item[data-position="middle-left"] { top: 50%; left: 15%; }
.logo-item[data-position="middle-right"] { top: 50%; right: 15%; }
.logo-item[data-position="bottom-left"] { bottom: 20%; left: 25%; }
.logo-item[data-position="bottom-center"] { bottom: 20%; left: 50%; transform: translateX(-50%); }
.logo-item[data-position="bottom-right"] { bottom: 20%; right: 25%; }

/* Tech Logos */
.tech-logo {
    width: 70%;
    height: 70%;
    object-fit: contain;
    filter: brightness(0.9);
    transition: all 0.3s ease;
}

.logo-item:hover .tech-logo {
    filter: brightness(1.2);
}

/* Particle Effects */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* Animations */
@keyframes pulseLine {
    0%, 100% {
        stroke-opacity: 0.2;
        stroke-width: 1;
    }
    50% {
        stroke-opacity: 0.8;
        stroke-width: 2;
    }
}

@keyframes pulseNode {
    0%, 100% {
        r: 3;
        opacity: 0.5;
    }
    50% {
        r: 4;
        opacity: 1;
    }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .logo-item {
        width: 50px;
        height: 50px;
    }

    .logo-item.central {
        width: 70px;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .logo-item {
        width: 40px;
        height: 40px;
    }

    .logo-item.central {
        width: 60px;
        height: 60px;
    }
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Buttons */
.primary-button,
.secondary-button,
.cta-button,
.submit-button {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.primary-button,
.cta-button,
.submit-button {
    background: var(--gradient-1);
    color: var(--text-primary);
    border: none;
}

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

.primary-button:hover,
.cta-button:hover,
.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.secondary-button:hover {
    background: var(--accent-primary);
    transform: translateY(-2px);
}

/* Services Section */
.services {
    padding: var(--space-xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.service-card {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s var(--transition-normal) forwards;
}

.service-card::before {
    content: '';
    position: absolute;
    top: var(--mouse-y, 0);
    left: var(--mouse-x, 0);
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    transition: width 0.4s ease, height 0.4s ease;
    border-radius: 50%;
    pointer-events: none;
}

.service-card:hover::before {
    width: 400px;
    height: 400px;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: var(--space-sm);
    transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}




/* About Section */
.about {
    padding: var(--space-xl) 0;
    background-color: var(--bg-primary);
}

.about-content {
    display: flex;
    gap: var(--space-lg);
}

.about-text {
    flex: 1;
}

.about-description {
    margin-bottom: var(--space-lg);
}

.about-description p {
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--transition-normal) forwards;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.stat-item {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform var(--transition-normal);
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: var(--space-xs);
    opacity: 0;
    transform: translateY(20px);
}

.stat-number.animated {
    animation: fadeInUp 0.6s var(--transition-normal) forwards;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Process Section */
.process {
    padding: var(--space-xl) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.process-timeline {
    max-width: 800px;
    margin: var(--space-xl) auto 0;
    position: relative;
    padding-left: var(--space-xl);
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--accent-primary);
    transform: scaleY(0);
    transform-origin: top;
    animation: scaleHeight 1s var(--transition-normal) forwards;
}

@keyframes scaleHeight {
    to { transform: scaleY(1); }
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    opacity: 0;
    transform: translateX(-50px);
    transition: all var(--transition-normal);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--space-xl));
    top: 50%;
    width: var(--space-md);
    height: 2px;
    background: var(--accent-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease 0.4s;
}

.timeline-item.visible::before {
    transform: scaleX(1);
}

.timeline-number {
    position: absolute;
    left: calc(-1 * var(--space-xl) - 20px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--accent-primary);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s ease 0.6s;
}

.timeline-item.visible .timeline-number {
    opacity: 1;
}

/* Case Studies Section */
.case-studies {
    padding: var(--space-xl) 0;
    background: var(--bg-primary);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.case-study-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
    box-shadow: var(--shadow-md);
}

.case-study-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.case-study-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

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

.case-study-content {
    padding: var(--space-md);
}

.case-study-content h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.case-study-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.case-study-results {
    list-style: none;
}

.case-study-results li {
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    padding-left: var(--space-md);
    position: relative;
}

.case-study-results li::before {
    content: '✓';
    color: var(--accent-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Contact Section */
.contact {
    padding: var(--space-xl) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

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

.form-group {
    position: relative;
    margin-bottom: var(--space-md);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    background: var(--bg-primary);
    border: 1px solid var(--text-secondary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.form-group.focused input,
.form-group.focused textarea {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.1);
}

.form-group.invalid input,
.form-group.invalid textarea {
    border-color: #ef4444;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    padding: var(--space-xl) 0 var(--space-md);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.company-info {
    max-width: 400px;
}

.footer-logo {
    height: 100px;
    margin-bottom: var(--space-md);
}

.footer-logo-img {
    height: 100%;
    width: auto;
}

.company-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
    font-weight: 600;
}

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

.footer-section ul li {
    margin-bottom: var(--space-sm);
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-normal);
    display: inline-block;
    position: relative;
    padding: 2px 0;
}

.footer-section ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-primary);
    transition: width var(--transition-normal);
}

.footer-section ul li a:hover {
    color: var(--text-primary);
    transform: translateX(5px);
}

.footer-section ul li a:hover::after {
    width: 100%;
}

.contact-info li {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-normal);
}

.contact-info li:hover {
    color: var(--text-primary);
}

.contact-info li i {
    color: var(--accent-primary);
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.social-link:hover {
    transform: translateY(-5px) rotate(8deg);
    background: var(--accent-primary);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
    border-color: transparent;
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    text-align: center;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --space-xl: 6rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1.5fr 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 4rem;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        padding: var(--space-md);
        flex-direction: column;
        align-items: center;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-btn {
        display: block;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }

    .company-info {
        grid-column: 1 / -1;
        text-align: center;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 3rem;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .process-timeline {
        padding-left: var(--space-lg);
    }

    .timeline-item::before {
        left: calc(-1 * var(--space-lg));
    }

    .timeline-number {
        left: calc(-1 * var(--space-lg) - 20px);
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .navbar {
        background-color: rgba(15, 23, 42, 0.95);
    }
    
    .service-card,
    .case-study-card,
    .timeline-item {
        background: rgba(30, 41, 59, 0.8);
    }
}

/* Print Styles */
@media print {
    .navbar,
    .hero-cta,
    .contact-form,
    .social-links {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }

    .section-title,
    .section-subtitle {
        color: #000;
        -webkit-text-fill-color: #000;
    }
}