/* ===== CSS VARIABLES ===== */
:root {
    --primary-color: #0066ff;
    --primary-dark: #0052cc;
    --secondary-color: #6c757d;
    --accent-color: #ff6b35;
    --dark-color: #1a1a1a;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --black: #000000;
    --text-dark: #2d3748;
    --text-light: #718096;
    --border-color: #e2e8f0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --gradient-primary: linear-gradient(135deg, #0066ff 0%, #00ccff 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
}

/* ===== GLOBAL STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.section-padding {
    padding: 100px 0;
}

.section-label {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 102, 255, 0.3);
    color: white;
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    background: transparent;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
    transform: translateY(-2px);
}

/* ===== NAVIGATION ===== */
.navbar {
    padding: 15px 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.navbar.scrolled {
    background: rgba(26, 26, 26, 0.95) !important;
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 15px;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* ===== HERO SECTION ===== */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--dark-color) 0%, #2d3748 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 102, 255, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 30px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    max-width: 500px;
}

.hero-buttons {
    margin-top: 40px;
}

.hero-animation {
    position: relative;
    z-index: 2;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 400px;
}

.floating-card {
    position: absolute;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
}

.floating-card i {
    font-size: 2rem;
    color: var(--primary-color);
}

.floating-card:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    top: 10%;
    right: 20%;
    animation-delay: -2s;
}

.floating-card:nth-child(3) {
    top: 60%;
    left: 5%;
    animation-delay: -4s;
}

.floating-card:nth-child(4) {
    bottom: 30%;
    left: 25%;
    animation-delay: -1s;
}

.floating-card:nth-child(5) {
    bottom: 20%;
    right: 10%;
    animation-delay: -3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-down {
    color: white;
    font-size: 1.5rem;
    text-decoration: none;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* ===== ABOUT SECTION ===== */
.about-content {
    padding-right: 50px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 5px;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 20px;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient-primary);
    color: white;
    padding: 20px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.badge-text {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== SERVICE CARDS ===== */
.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 1.8rem;
    color: white;
}

.service-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    margin-bottom: 25px;
}

.service-features li {
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.service-link:hover {
    color: var(--primary-dark);
}

.service-link i {
    transition: transform 0.3s ease;
}

.service-link:hover i {
    transform: translateX(5px);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.9), rgba(0, 204, 255, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

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

.portfolio-content {
    text-align: center;
    color: white;
    padding: 20px;
}

.portfolio-content h5 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.portfolio-content p {
    margin-bottom: 20px;
    opacity: 0.9;
}

.portfolio-tech {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.tech-tag {
    background: rgba(255, 255, 255, 0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===== CONTACT SECTION ===== */
.contact-methods {
    margin-top: 40px;
}

.contact-method {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: white;
}

.contact-details h5 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: white;
}

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

.contact-form-container {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: white;
}

.form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    padding: 15px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 255, 0.25);
    color: white;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

/* ===== FOOTER ===== */
.footer-brand h4 {
    color: white;
    font-weight: 700;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.newsletter-form .input-group {
    border-radius: 10px;
    overflow: hidden;
}

.newsletter-form .form-control {
    border-radius: 0;
    border-right: none;
}

.newsletter-form .btn {
    border-radius: 0;
    padding: 15px 20px;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* ===== LANGUAGE SELECTOR ===== */
.language-selector {
    display: flex;
    align-items: center;
}

.language-selector .btn {
    border-radius: 25px;
    padding: 8px 15px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.language-selector .btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

#currentLang {
    font-weight: 700;
}

/* Language transition animations */
.fade-translate {
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.fade-translate.active {
    opacity: 1;
}

/* ===== AI SOLUTIONS SECTION ===== */
.ai-feature-card {
    background: white;
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid var(--border-color);
}

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

.ai-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.ai-icon i {
    font-size: 1.5rem;
    color: white;
}

.ai-feature-card h5 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.ai-feature-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

.ai-showcase {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
    padding: 60px 40px;
    margin-top: 60px;
}

.ai-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.ai-benefits {
    margin-bottom: 30px;
}

.benefit-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    font-weight: 500;
}

.benefit-item i {
    margin-right: 15px;
    font-size: 1.1rem;
}

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

.ai-network {
    position: relative;
    width: 100%;
    height: 100%;
}

.ai-node {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    animation: float 4s ease-in-out infinite;
}

.ai-node.central {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    font-size: 1.5rem;
    background: var(--gradient-accent);
}

.ai-node:nth-child(1) { animation-delay: 0s; }
.ai-node:nth-child(2) { animation-delay: -1s; }
.ai-node:nth-child(3) { animation-delay: -2s; }
.ai-node:nth-child(4) { animation-delay: -3s; }

/* AI Network connections */
.ai-network::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, transparent 40%, rgba(0, 102, 255, 0.2) 50%, transparent 60%),
        linear-gradient(-45deg, transparent 40%, rgba(0, 102, 255, 0.2) 50%, transparent 60%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .floating-elements {
        height: 200px;
    }
    
    .floating-card {
        width: 60px;
        height: 60px;
    }
    
    .floating-card i {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-form-container {
        padding: 30px 20px;
    }
    
    .floating-elements {
        display: none;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 80px 0 40px;
    }
    
    .navbar-nav .nav-link {
        margin: 5px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
}

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

.animate-on-scroll {
    animation: fadeInUp 0.6s ease-out;
}