:root {
    --primary-color: #1a56db;
    --secondary-color: #7e3af2;
    --accent-color: #0694a2;
    --success: #0e9f6e;
    --warning: #ff5a1f;
    --danger: #e02424;
    --dark-bg: #1a202c;
    --light-bg: #f7fafc;
    --text-dark: #1a202c;
    --text-light: #f7fafc;
    --gradient-primary: linear-gradient(135deg, #1a56db 0%, #7e3af2 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #f9fafb;
    scroll-behavior: smooth;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
    position: relative;
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a.active {
    color: var(--primary-color);
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
}

/* Hero Section */
.hero {
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 5rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Button Styles */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    background-color: #1e429f;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid white;
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Demo Video Section */
.demo-video {
    padding: 5rem 2rem;
    background-color: #f8fafc;
    text-align: center;
}

.demo-video h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.demo-video p {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    color: #6b7280;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.video-container {
    max-width: 800px;
    margin: 0 auto 3rem auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    background-color: #000;
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

.video-description {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.video-description h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.video-description ul {
    list-style: none;
    padding: 0;
}

.video-description li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.video-description li i {
    color: var(--success);
    font-size: 1rem;
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background-color: white;
}

.features h2, .projects h2, .testimonials h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

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

.feature-card {
    background-color: var(--light-bg);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Projects Section */
.projects {
    padding: 5rem 2rem;
    background-color: var(--light-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.project-image {
    height: 200px;
    overflow: hidden;
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: #64748b;
}

/* Testimonials Section */
.testimonials {
    padding: 5rem 2rem;
    background-color: white;
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial {
    background-color: var(--light-bg);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 1rem;
    object-fit: cover;
}

.testimonial-author h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.testimonial-author p {
    color: #64748b;
    font-size: 0.9rem;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    background-color: #e2e8f0;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    color: var(--text-light);
    text-align: center;
    padding: 5rem 2rem;
}

.cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Footer */
footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 4rem 2rem 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 3rem;
}

.footer-logo h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    opacity: 0.7;
}

.footer-links h3, .footer-contact h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-links h3::after, .footer-contact h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

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

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

.footer-links ul li a {
    color: var(--text-light);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.footer-links ul li a:hover {
    opacity: 1;
}

.footer-contact p {
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

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

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--text-light);
    transition: all 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* About Section */
.about-section {
    padding: 5rem 2rem;
    background-color: var(--light-bg);
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 1rem;
    }
    
    nav ul {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0.5rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
    
    .demo-video {
        padding: 3rem 1rem;
    }
    
    .demo-video h2 {
        font-size: 1.75rem;
    }
    
    .video-container {
        margin-bottom: 2rem;
        border-radius: 10px;
    }
    
    .video-description {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid, .projects-grid {
        grid-template-columns: 1fr;
    }
}

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

.feature-card, .project-card, .testimonial {
    animation: fadeIn 0.5s ease-out forwards;
}

.feature-card:nth-child(2) {
    animation-delay: 0.1s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(4) {
    animation-delay: 0.3s;
}

.feature-card:nth-child(5) {
    animation-delay: 0.4s;
}

.feature-card:nth-child(6) {
    animation-delay: 0.5s;
}