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

:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success: #10b981;
    --error: #ef4444;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
}

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

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

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

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
}

.logo-text .highlight {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: all 0.3s ease;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #f9fafb 0%, #e0e7ff 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

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

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    animation: slideInLeft 0.8s ease-out;
}

.hero-badge i {
    animation: pulse 2s ease-in-out infinite;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    animation: fadeIn 1s ease-out 0.2s both;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    animation: fadeIn 1s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2rem;
    animation: fadeIn 1s ease-out 0.6s both;
}

.stat-item {
    text-align: left;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: scale(1.1);
}

.stat-number {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeIn 1s ease-out 0.8s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--bg-white);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: var(--bg-white);
    color: var(--text-dark);
    border: 2px solid var(--border-color);
}

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

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--bg-white);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 1.5rem;
    animation: float 6s ease-in-out infinite;
}

.code-window {
    border-radius: 8px;
    overflow: hidden;
    background: #1e293b;
}

.window-header {
    background: #334155;
    padding: 0.75rem;
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.code-content {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: #e2e8f0;
    line-height: 1.8;
}

.code-content .comment { color: #64748b; }
.code-content .keyword { color: #c084fc; }
.code-content .string { color: #34d399; }

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator a {
    color: var(--primary-color);
    font-size: 2rem;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* ===================================
   Section Styles
   =================================== */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-description {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.125rem;
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--bg-white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text h3 {
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-text p {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

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

.expertise-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.expertise-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

.expertise-item:hover::before {
    left: 100%;
}

.expertise-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
}

.expertise-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.expertise-item:hover i {
    transform: scale(1.1) rotate(5deg);
    color: var(--primary-dark);
}

.expertise-item h4 {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    transition: color 0.3s ease;
}

.expertise-item:hover h4 {
    color: var(--primary-color);
}

.expertise-item p {
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.6;
}

/* ===================================
   Services Section
   =================================== */
.services {
    background: var(--bg-light);
}

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

.service-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 2px solid transparent;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.25);
    border-color: var(--primary-light);
}

.service-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #ffffff 0%, #f5f3ff 100%);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.15);
}

.service-card.featured:hover {
    box-shadow: 0 25px 50px rgba(99, 102, 241, 0.3);
}

.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-1);
    color: var(--bg-white);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    animation: bounceIn 0.8s ease-out;
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-md);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.service-icon i {
    font-size: 2rem;
    color: var(--bg-white);
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card > p {
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-light);
    font-size: 0.875rem;
}

.service-features i {
    color: var(--success);
    font-size: 1rem;
}

/* ===================================
   Portfolio Section
   =================================== */
.portfolio {
    background: var(--bg-white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.portfolio-image {
    position: relative;
    height: 250px;
    background: var(--gradient-1);
    overflow: hidden;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.portfolio-link {
    width: 60px;
    height: 60px;
    background: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.portfolio-link:hover {
    transform: scale(1.1);
}

.coming-soon-badge {
    color: var(--bg-white);
    font-size: 1.5rem;
    font-weight: 700;
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tag {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.portfolio-content h3 {
    margin-bottom: 0.5rem;
}

.portfolio-content p {
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.portfolio-url {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.portfolio-url:hover {
    gap: 0.75rem;
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    position: relative;
    transition: all 0.3s ease;
}

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

.quote-icon {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.2;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-size: 1rem;
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.testimonial-author h4 {
    margin-bottom: 0.5rem;
}

.rating {
    display: flex;
    gap: 0.25rem;
}

.rating i {
    color: var(--secondary-color);
    font-size: 0.875rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info h3 {
    margin-bottom: 1rem;
}

.contact-methods {
    margin: 2rem 0;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-method h4 {
    margin-bottom: 0.25rem;
}

.contact-method a {
    color: var(--primary-color);
    font-weight: 500;
}

.contact-method a:hover {
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--bg-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.25rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    position: relative;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-success {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-white);
    border-radius: 16px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.form-success.show {
    display: flex;
}

.form-success i {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: 1rem;
}

.form-success h3 {
    margin-bottom: 0.5rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text-dark);
    color: var(--bg-light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-about h3 {
    color: var(--bg-white);
    margin-bottom: 1rem;
}

.footer-about p {
    color: var(--bg-light);
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    color: var(--bg-white);
    margin-bottom: 1rem;
}

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

.footer-links li,
.footer-services li {
    margin-bottom: 0.5rem;
}

.footer-links a,
.footer-services a {
    color: var(--bg-light);
    transition: color 0.3s ease;
}

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

.footer-contact p {
    color: var(--bg-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-contact i {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--bg-light);
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    color: var(--bg-light);
    font-size: 1.25rem;
    transition: color 0.3s ease;
}

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

/* ===================================
   Chat Widget
   =================================== */
.chat-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
}

.chat-button {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    transition: all 0.3s ease;
    position: relative;
    animation: pulse 2s ease-in-out infinite;
}

.chat-button:hover {
    transform: scale(1.1);
    animation: none;
}

.chat-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--secondary-color);
    color: var(--bg-white);
    font-size: 0.625rem;
    padding: 0.25rem 0.5rem;
    border-radius: 50px;
    font-weight: 700;
    animation: bounceIn 1s ease-out;
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    height: 550px;
    background: var(--bg-white);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideInUp 0.3s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-window.show {
    display: flex;
}

.chat-header {
    background: var(--gradient-1);
    color: var(--bg-white);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-header i {
    font-size: 1.5rem;
}

.chat-header h4 {
    color: var(--bg-white);
    margin: 0;
    font-size: 1rem;
}

.online-status {
    font-size: 0.75rem;
    opacity: 0.9;
}

.online-status::before {
    content: '●';
    color: #10b981;
    margin-right: 0.25rem;
    animation: pulse 2s ease-in-out infinite;
}

.chat-close {
    background: none;
    border: none;
    color: var(--bg-white);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.chat-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.chat-body {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background: #f9fafb;
}

.chat-body::-webkit-scrollbar {
    width: 6px;
}

.chat-body::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.chat-body::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.chat-message {
    margin-bottom: 1rem;
    animation: fadeIn 0.3s ease-out;
}

.chat-message.bot .message-content {
    background: var(--bg-white);
    padding: 1rem;
    border-radius: 12px 12px 12px 4px;
    max-width: 85%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.chat-message.user .message-content {
    background: var(--primary-color);
    color: var(--bg-white);
    padding: 1rem;
    border-radius: 12px 12px 4px 12px;
    max-width: 85%;
    margin-left: auto;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.chat-message.bot .message-content p {
    margin: 0;
    line-height: 1.6;
    color: var(--text-dark);
}

.chat-message.user .message-content p {
    margin: 0;
    line-height: 1.6;
    color: var(--bg-white);
}

/* Typing Indicator */
.typing-indicator .message-content {
    padding: 0.75rem 1rem !important;
}

.typing-dots {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

.quick-replies {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.quick-reply {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 0.625rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    font-family: var(--font-primary);
    font-weight: 500;
}

.quick-reply:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.chat-footer {
    padding: 1rem;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
}

.chat-footer input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 0.875rem;
    transition: border-color 0.3s ease;
}

.chat-footer input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-footer input::placeholder {
    color: var(--text-light);
}

#chat-send {
    background: var(--primary-color);
    color: var(--bg-white);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

#chat-send:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--bg-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 998;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .services-grid,
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid,
    .portfolio-grid,
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    /* Chatbot Mobile */
    .chat-widget {
        bottom: 1rem;
        right: 1rem;
    }
    
    .chat-button {
        width: 55px;
        height: 55px;
        font-size: 1.3rem;
    }
    
    .chat-window {
        width: calc(100vw - 2rem);
        height: 70vh;
        max-height: 500px;
        bottom: 70px;
        right: -1rem;
    }
    
    .chat-body {
        padding: 0.75rem;
    }
    
    .chat-message.bot .message-content,
    .chat-message.user .message-content {
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Advanced Animations
   =================================== */

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide In From Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In From Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Bounce In */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

/* Rotate In */
@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-200deg) scale(0.8);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

/* Flip In */
@keyframes flipIn {
    from {
        transform: perspective(400px) rotateX(90deg);
        opacity: 0;
    }
    to {
        transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}

/* Glow Pulse */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 5px rgba(99, 102, 241, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.8), 0 0 30px rgba(99, 102, 241, 0.6);
    }
}

/* Gradient Animation */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

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

/* Shake */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-10px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(10px);
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Scroll Reveal Animation */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays for grid items */
.animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.4s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.5s; }
.animate-on-scroll:nth-child(6) { transition-delay: 0.6s; }

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

.scale-in {
    animation: scaleIn 0.6s ease-out;
}

.bounce-in {
    animation: bounceIn 0.8s ease-out;
}

.rotate-in {
    animation: rotateIn 0.8s ease-out;
}

.flip-in {
    animation: flipIn 0.8s ease-out;
}

.float {
    animation: float 3s ease-in-out infinite;
}

.glow-pulse {
    animation: glowPulse 2s ease-in-out infinite;
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.hover-scale {
    transition: transform 0.3s ease;
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* Gradient Background Animation */
.gradient-animate {
    background: linear-gradient(-45deg, #6366f1, #8b5cf6, #ec4899, #f59e0b);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* Particles Background */
@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

.particle {
    animation: particleFloat 20s infinite ease-in-out;
}

/* Typewriter Effect */
@keyframes typewriter {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.typewriter {
    overflow: hidden;
    border-right: 3px solid var(--primary-color);
    white-space: nowrap;
    animation: typewriter 4s steps(40) 1s 1 normal both;
}

/* ===================================
   Utility Classes
   =================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden { display: none; }
.visible { display: block; }

/* ===================================
   Print Styles
   =================================== */
@media print {
    .navbar,
    .chat-widget,
    .back-to-top,
    .hero-buttons,
    .contact-form {
        display: none;
    }
}