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

:root {
    /* Color Scheme */
    --primary-navy: #0B1E3D;
    --secondary-blue: #3A7DFF;
    --accent-green: #2AE98A;
    --background-white: #FFFFFF;
    --background-gray: #F5F7FA;
    --text-dark: #1A1A1A;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    
    /* Additional Colors */
    --warm-accent: #FF6B35;
    --success-green: #10B981;
    --warning-amber: #F59E0B;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-white);
    scroll-behavior: smooth;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3.5rem;
    font-weight: var(--font-weight-extrabold);
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.875rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-gray);
    font-size: 1.125rem;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-navy));
    color: var(--background-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-navy), var(--secondary-blue));
}

.btn-secondary {
    background: transparent;
    color: var(--secondary-blue);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--secondary-blue);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--secondary-blue);
    color: var(--background-white);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* Navigation */
.navbar {
    background: rgba(11, 30, 61, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: all 0.3s ease;
}

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

.nav-brand h2 {
    color: var(--background-white);
    font-weight: var(--font-weight-extrabold);
    margin: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--background-white);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-green);
}

.mobile-menu-toggle {
    display: none;
    color: var(--background-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-navy) 0%, #1a2f5c 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M20,20 Q50,10 80,20 Q90,50 80,80 Q50,90 20,80 Q10,50 20,20' fill='none' stroke='%233A7DFF' stroke-width='0.5' opacity='0.3'/%3E%3Ccircle cx='20' cy='20' r='2' fill='%232AE98A' opacity='0.6'/%3E%3Ccircle cx='80' cy='20' r='2' fill='%232AE98A' opacity='0.6'/%3E%3Ccircle cx='80' cy='80' r='2' fill='%232AE98A' opacity='0.6'/%3E%3Ccircle cx='20' cy='80' r='2' fill='%232AE98A' opacity='0.6'/%3E%3C/svg%3E") repeat;
    animation: networkPulse 8s ease-in-out infinite;
}

@keyframes networkPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-title {
    color: var(--background-white);
    margin-bottom: var(--spacing-md);
    font-size: 3.5rem;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-green), var(--secondary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--accent-green);
}

.stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-visualization {
    position: relative;
    width: 400px;
    height: 400px;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.element {
    position: absolute;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--background-white);
    font-size: 1.5rem;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
}

.element-1 {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.element-2 {
    top: 20%;
    right: 20%;
    animation-delay: 1.5s;
}

.element-3 {
    bottom: 20%;
    right: 20%;
    animation-delay: 3s;
}

.element-4 {
    bottom: 20%;
    left: 20%;
    animation-delay: 4.5s;
}

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

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    color: var(--primary-navy);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--background-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--background-white);
}

.feature-card h3 {
    color: var(--primary-navy);
    margin-bottom: var(--spacing-sm);
}

/* Services Section */
.services {
    padding: var(--spacing-2xl) 0;
}

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

.service-card {
    position: relative;
    background: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-blue);
}

.service-card.featured {
    border-color: var(--secondary-blue);
    background: linear-gradient(135deg, var(--background-white) 0%, rgba(58, 125, 255, 0.05) 100%);
}

.featured-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-green));
    color: var(--background-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
}

.service-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-green));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--background-white);
}

.service-card h3 {
    color: var(--primary-navy);
    margin-bottom: var(--spacing-sm);
}

.service-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--background-gray);
    border-bottom: 1px solid var(--background-gray);
}

.timeline {
    color: var(--text-gray);
    font-size: 0.875rem;
}

.starting-price {
    font-weight: var(--font-weight-semibold);
    color: var(--secondary-blue);
}

.service-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.service-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-gray);
    position: relative;
    padding-left: var(--spacing-md);
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-green);
    font-weight: var(--font-weight-bold);
}

/* Case Studies Section */
.case-studies {
    padding: var(--spacing-2xl) 0;
    background: var(--background-gray);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.result-card {
    background: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.result-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.result-metric {
    font-size: 3rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--secondary-blue);
    margin-bottom: var(--spacing-sm);
}

.result-description {
    font-size: 1.125rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.result-client {
    color: var(--text-gray);
    font-size: 0.875rem;
    font-style: italic;
}

.testimonials {
    position: relative;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.testimonial {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.testimonial.active {
    display: block;
    opacity: 1;
}

.testimonial-content {
    background: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.testimonial-content blockquote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-weight: var(--font-weight-semibold);
    color: var(--primary-navy);
}

.author-title {
    color: var(--text-gray);
    font-size: 0.875rem;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.testimonial-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.testimonial-btn.active {
    background: var(--secondary-blue);
}

/* Contact Section */
.contact {
    padding: var(--spacing-2xl) 0;
    background: var(--primary-navy);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.contact-info h2 {
    color: var(--background-white);
    margin-bottom: var(--spacing-md);
}

.contact-info p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--accent-green);
    width: 30px;
}

.contact-method h4 {
    color: var(--background-white);
    margin-bottom: var(--spacing-xs);
}

.contact-method p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.contact-form-container {
    background: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: var(--text-dark);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 2px solid var(--background-gray);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-blue);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--background-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: var(--spacing-xl);
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.footer-brand h3 {
    color: var(--background-white);
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-green);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--background-white);
    text-decoration: none;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .ai-visualization {
        width: 300px;
        height: 300px;
    }
    
    .features-grid,
    .services-grid,
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .feature-card,
    .service-card,
    .contact-form-container {
        padding: var(--spacing-md);
    }
    
    .btn-large {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}