/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0f172a;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-teal: #14b8a6;
    --accent-orange: #f97316;
    --accent-pink: #ec4899;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

.btn-light:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 1.25rem;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    padding: 10px 18px;
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-toggle {
    padding: 8px 16px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-toggle:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.6;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    top: -100px;
    right: -100px;
    filter: blur(80px);
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-blue));
    bottom: -50px;
    left: -50px;
    filter: blur(60px);
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-pink));
    top: 50%;
    left: 30%;
    filter: blur(50px);
}

.shape-4 {
    width: 150px;
    height: 150px;
    background: var(--accent-purple);
    bottom: 20%;
    right: 20%;
    filter: blur(40px);
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 1;
    margin-left: 10%;
}

.hero-content h1 {
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text-dark), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-item {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.gi-1 { color: var(--accent-blue); animation-delay: 0s; }
.gi-2 { color: var(--accent-purple); animation-delay: 0.5s; }
.gi-3 { color: var(--accent-teal); animation-delay: 1s; }
.gi-4 { color: var(--accent-orange); animation-delay: 1.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}


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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-header p {
    color: var(--text-gray);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 24px;
    color: white;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* Services Preview */
.services-preview {
    padding: 100px 0;
    background: var(--bg-light);
}

.services-showcase {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.service-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 40px;
    align-items: center;
    padding: 40px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.service-item.reverse {
    direction: rtl;
}

.service-item.reverse > * {
    direction: ltr;
}

.service-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--border);
    line-height: 1;
}

.service-content h3 {
    margin-bottom: 12px;
    color: var(--text-dark);
}

.service-content p {
    color: var(--text-gray);
}

.service-visual {
    width: 120px;
    height: 120px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
}

.sv-1 { background: linear-gradient(135deg, var(--accent-blue), var(--accent-teal)); }
.sv-2 { background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink)); }
.sv-3 { background: linear-gradient(135deg, var(--accent-orange), var(--accent-pink)); }

.services-cta {
    text-align: center;
    margin-top: 60px;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary), var(--accent-purple));
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    color: white;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.stat-number::after {
    content: '+';
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: var(--secondary);
    text-align: center;
}

.cta-content h2 {
    color: white;
    margin-bottom: 20px;
}

.cta-content p {
    color: var(--text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Footer */
.footer {
    background: var(--secondary);
    padding: 80px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-light);
    margin-bottom: 8px;
}

.footer-address {
    font-size: 0.875rem;
}

.footer-links h4,
.footer-contact h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1rem;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-contact p {
    color: var(--text-light);
    margin-bottom: 10px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    z-index: 999;
}

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

.mobile-menu ul {
    list-style: none;
}

.mobile-menu li {
    margin-bottom: 10px;
}

.mobile-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 8px;
}

.mobile-menu a:hover {
    background: var(--bg-light);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }
    
    .hero-content {
        margin-left: 0;
        max-width: 100%;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .service-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .service-item.reverse {
        direction: ltr;
    }
    
    .service-visual {
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 100px 24px 60px;
    }
    
    .features, .services-preview, .cta-section {
        padding: 60px 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}