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

:root {
    /* Blue-Black Color Scheme */
    --primary-blue: #1e40af;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1e3a8a;
    --secondary-blue: #0ea5e9;
    --accent-blue: #06b6d4;
    
    --black: #000000;
    --dark-gray: #111111;
    --medium-gray: #1f1f1f;
    --light-gray: #2a2a2a;
    --text-gray: #e5e5e5;
    --text-muted: #a3a3a3;
    
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    --gradient-dark: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 100%);
    --gradient-card: linear-gradient(135deg, var(--dark-gray) 0%, var(--medium-gray) 100%);
    
    /* Shadows */
    --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);
    --shadow-blue: 0 10px 30px rgba(30, 64, 175, 0.3);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

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

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(30, 64, 175, 0.2);
    transition: var(--transition-normal);
}

.navbar {
    padding: var(--spacing-md) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link:hover {
    color: var(--primary-blue-light);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--dark-gray);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-xl);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-gray);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--primary-blue);
    color: var(--white);
}

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

.btn-contact {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-blue);
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(30, 64, 175, 0.4);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-gray);
    border-radius: 2px;
    transition: var(--transition-fast);
}

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

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(30, 64, 175, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title-container {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    margin-bottom: var(--spacing-lg);
    gap: 0.7rem;
}

.hero-title-part {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin: 0;
    color: var(--white);
}

.hero-highlight-part {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin: 0;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 50%, #0066ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

/* Giữ lại cho backward compatibility */
.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
}

.highlight {
    color: #00d4ff !important;
    font-weight: 800 !important;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.text-highlight {
    color: #00d4ff !important;
    font-weight: 800 !important;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5) !important;
    background: none !important;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.4);
}

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

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

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

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

/* Hero Card */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--gradient-card);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    width: 100%;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
}

.card-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.card-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
}

.card-dots span:nth-child(1) { background: #ef4444; }
.card-dots span:nth-child(2) { background: #f59e0b; }
.card-dots span:nth-child(3) { background: #10b981; }

.card-title {
    color: var(--text-gray);
    font-weight: 600;
}

.card-content {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: var(--font-size-sm);
}

.terminal-line {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.prompt {
    color: var(--primary-blue-light);
    font-weight: 600;
}

.command {
    color: var(--white);
}

.output {
    color: var(--success);
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    line-height: 1.7;
}

/* Features Section */
.features {
    background: var(--dark-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: var(--font-size-2xl);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Services Section */
.services {
    background: var(--black);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.service-card {
    background: var(--gradient-card);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    position: relative;
    transition: var(--transition-normal);
    overflow: hidden;
}

.service-card.featured {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-blue);
    transform: scale(1.05);
}

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

.service-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.service-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-header {
    margin-bottom: var(--spacing-xl);
}

.service-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.service-subtitle {
    color: var(--text-muted);
    font-size: var(--font-size-base);
}

.service-specs {
    margin-bottom: var(--spacing-xl);
}

.spec-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    color: var(--text-gray);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-item i {
    color: var(--primary-blue-light);
    width: 20px;
    text-align: center;
}

.service-price {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(30, 64, 175, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-blue);
}

.price-label {
    display: block;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.price {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-blue-light);
    margin-bottom: var(--spacing-xs);
}

.price-period {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.btn-service {
    width: 100%;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.btn-service:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(30, 64, 175, 0.4);
}

.services-footer {
    text-align: center;
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--light-gray);
}

.services-note {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--light-gray);
}

.services-note h4 {
    color: var(--white);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.services-note p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.chat-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-blue-light);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.chat-link:hover {
    color: var(--white);
}

/* Technologies Section */
.technologies {
    background: var(--dark-gray);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: var(--gradient-card);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
    text-align: center;
}

.tech-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.tech-item i {
    font-size: var(--font-size-3xl);
    color: var(--primary-blue-light);
}

.tech-item span {
    color: var(--text-gray);
    font-weight: 600;
}

/* Team Section */
.team {
    background: var(--black);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.team-card {
    background: var(--gradient-card);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.team-card:hover::before {
    transform: scaleX(1);
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.team-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary-blue);
    box-shadow: var(--shadow-blue);
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.team-role {
    color: var(--primary-blue-light);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.team-desc {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.team-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.team-skills span {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.team-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: var(--gradient-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--light-gray);
}

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-blue-light);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--text-muted);
    font-weight: 500;
}

/* CTA Section */
.cta {
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(30, 64, 175, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.cta-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: var(--spacing-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--black);
    border-top: 1px solid var(--light-gray);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-desc {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.footer-info {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

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

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

.footer-section ul li a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-blue-light);
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition-normal);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--light-gray);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

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

    .service-card.featured {
        transform: none;
    }

    .service-card.featured:hover {
        transform: translateY(-10px);
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-gray);
        flex-direction: column;
        padding: var(--spacing-xl);
        border-top: 1px solid var(--light-gray);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }

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

    .hamburger {
        display: flex;
    }

    .nav-actions {
        display: none;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

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

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

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

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

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

    .cta-title {
        font-size: var(--font-size-3xl);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-container {
        padding: 0 var(--spacing-md);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .hero-card {
        padding: var(--spacing-lg);
    }

    .feature-card,
    .service-card,
    .team-card {
        padding: var(--spacing-lg);
    }

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

    .stat-number {
        font-size: var(--font-size-3xl);
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

/* Loading animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
}

.loading-logo {
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    animation: pulse 2s infinite;
}

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

.loading-text {
    color: var(--white);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

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