:root {
    --primary-light: #6C5CE7;
    --secondary-light: #5649C0;
    --accent-light: #00CEFF;
    --text-light: #2D3436;
    --bg-light: #F9FAFB;
    --card-light: #FFFFFF;
    --nav-light: rgba(255, 255, 255, 0.95);
    --border-light: rgba(0, 0, 0, 0.1);

    --primary-dark: #00CEFF;
    --secondary-dark: #6C5CE7;
    --accent-dark: #5649C0;
    --text-dark: #F9FAFB;
    --bg-dark: #121212;
    --card-dark: #1E1E1E;
    --nav-dark: rgba(30, 30, 30, 0.95);
    --border-dark: rgba(255, 255, 255, 0.1);

    --success: #00B894;
    --warning: #FDCB6E;
    --danger: #D63031;
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 15px 40px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    transition: var(--transition);
}

body.light-mode {
    --primary: var(--primary-light);
    --secondary: var(--secondary-light);
    --accent: var(--accent-light);
    --text: var(--text-light);
    --bg: var(--bg-light);
    --card: var(--card-light);
    --nav: var(--nav-light);
    --border: var(--border-light);
}

body.dark-mode {
    --primary: var(--primary-dark);
    --secondary: var(--secondary-dark);
    --accent: var(--accent-dark);
    --text: var(--text-dark);
    --bg: var(--bg-dark);
    --card: var(--card-dark);
    --nav: var(--nav-dark);
    --border: var(--border-dark);
}

.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--bg) 0%, var(--bg) 100%);
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.3;
    animation: float 15s infinite linear;
}

@keyframes float {
    0% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 0.3;
    }

    50% {
        opacity: 0.1;
    }

    100% {
        transform: translateY(-100vh) translateX(100px) rotate(360deg);
        opacity: 0.3;
    }
}

.gradient-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background:
        radial-gradient(circle at 20% 30%, rgba(var(--primary-rgb), 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(var(--accent-rgb), 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 20%, rgba(var(--secondary-rgb), 0.1) 0%, transparent 50%);
    opacity: 0.8;
}

.animated-text {
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    display: inline-block;
}

.animated-text::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.5s ease-out;
}

.animated-text:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.floating {
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

.glow {
    filter: drop-shadow(0 0 10px rgba(var(--primary-rgb), 0.5));
    transition: filter 0.3s ease;
}

.glow:hover {
    filter: drop-shadow(0 0 20px rgba(var(--primary-rgb), 0.8));
}

.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.card-3d:hover {
    transform: perspective(1000px) rotateY(5deg) rotateX(5deg);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.3);
}

header {
    background-color: var(--nav);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    transition: var(--transition);
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo i {
    margin-right: 12px;
    color: var(--accent);
    transition: var(--transition);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 30px;
    position: relative;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    font-size: 1.05rem;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(var(--primary-rgb), 0.1);
}

.theme-toggle:hover {
    color: var(--primary);
    transform: rotate(30deg);
}

.cta-button {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    background-color: var(--secondary);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.4);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.cta-button:hover::before {
    left: 100%;
}

.mobile-menu {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text);
}

.hero {
    height: 100vh;
    min-height: 800px;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    padding: 0 60px;
    transform: translateY(30px);
    opacity: 0;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 25px;
    line-height: 1.2;
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    color: var(--text);
    opacity: 0.8;
    max-width: 700px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.secondary-button {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.secondary-button:hover {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
}

.hero-image {
    flex: 1;
    position: relative;
    height: 100%;
    transform: translateY(30px);
    opacity: 0;
}

.hero-image-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-container img {
    max-width: 80%;
    max-height: 80%;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.2));
}

.video-section {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.8;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(var(--primary-rgb), 0.7), rgba(var(--secondary-rgb), 0.7));
    z-index: -1;
}

.video-content {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.video-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.video-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.features {
    padding: 150px 0;
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 70%, rgba(var(--primary-rgb), 0.03) 100%);
    z-index: -1;
}

.section-title {
    text-align: center;
    margin-bottom: 80px;
    transform: translateY(30px);
    opacity: 0;
}

.section-title h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--accent));
    border-radius: 2px;
}

.section-title p {
    color: var(--text);
    opacity: 0.7;
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background-color: var(--card);
    border-radius: var(--radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    transform: translateY(30px);
    opacity: 0;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(to bottom right,
            transparent,
            transparent,
            transparent,
            rgba(var(--primary-rgb), 0.1));
    transform: rotate(30deg);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--primary-rgb), 0.3);
}

.feature-card:hover::before {
    transform: rotate(30deg) translateY(100%);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 32px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: rotate(15deg) scale(1.1);
}

.feature-card h3 {
    margin-bottom: 20px;
    color: var(--text);
    text-align: center;
    font-size: 1.5rem;
}

.feature-card p {
    text-align: center;
    color: var(--text);
    opacity: 0.8;
}

.animated-text-section {
    padding: 150px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    position: relative;
    overflow: hidden;
}

.animated-text-container {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.text-animation {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 40px;
}

.text-animation span {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
}

.stats {
    padding: 120px 0;
    background-color: var(--bg);
    position: relative;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    text-align: center;
}

.stat-item {
    transform: translateY(30px);
    opacity: 0;
}

.stat-item h3 {
    font-size: 4rem;
    margin-bottom: 15px;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.stat-item p {
    font-size: 1.3rem;
    opacity: 0.9;
    font-weight: 500;
}

.testimonials {
    padding: 150px 0;
    background-color: var(--bg);
    position: relative;
}

.testimonial-slider {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.testimonial {
    background-color: var(--card);
    padding: 50px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    display: none;
    border: 1px solid var(--border);
    transform: scale(0.95);
    opacity: 0;
    transition: var(--transition);
}

.testimonial.active {
    display: block;
    transform: scale(1);
    opacity: 1;
    animation: none;
}

.testimonial-content {
    font-size: 1.3rem;
    font-style: italic;
    margin-bottom: 30px;
    color: var(--text);
    opacity: 0.9;
    line-height: 1.8;
    position: relative;
}

.testimonial-content::before,
.testimonial-content::after {
    content: '"';
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.3;
    position: absolute;
}

.testimonial-content::before {
    top: -20px;
    left: -30px;
}

.testimonial-content::after {
    bottom: -40px;
    right: -30px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 30px;
}

.author-image {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    border: 3px solid var(--primary);
    padding: 3px;
}

.author-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.author-info {
    text-align: left;
}

.author-info h4 {
    margin-bottom: 5px;
    color: var(--text);
}

.author-info p {
    color: var(--text);
    opacity: 0.7;
    font-size: 0.95rem;
}

.slider-controls {
    display: flex;
    justify-content: center;
    margin-top: 50px;
    gap: 15px;
}

.slider-button {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    background-color: var(--card);
    border: 1px solid var(--border);
}

.slider-button:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.slider-dots {
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-dot {
    width: 12px;
    height: 12px;
    background-color: var(--border);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

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

.cta {
    padding: 150px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" stroke="white" stroke-width="0.5" fill="none" opacity="0.1"/></svg>');
    opacity: 0.1;
}

.cta .container {
    position: relative;
    z-index: 1;
    transform: translateY(30px);
    opacity: 0;
}

.cta h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 30px;
    line-height: 1.3;
}

.cta p {
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.3rem;
    opacity: 0.9;
}

.cta-button.large {
    padding: 18px 40px;
    font-size: 1.2rem;
    border-radius: calc(var(--radius) + 5px);
}

footer {
    background-color: var(--card);
    color: var(--text);
    padding: 100px 0 40px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--primary), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 50px;
    margin-bottom: 70px;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--accent));
    border-radius: 3px;
}

.footer-col p {
    margin-bottom: 25px;
    opacity: 0.8;
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--text);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary);
    transform: translateX(5px);
}

.footer-links a i {
    font-size: 0.8rem;
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: var(--bg);
    border-radius: 50%;
    color: var(--text);
    transition: var(--transition);
    font-size: 1.1rem;
    border: 1px solid var(--border);
}

.social-links a:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-5px);
    border-color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    opacity: 0.7;
    font-size: 0.95rem;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: var(--secondary);
    transform: translateY(-5px);
}

@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
}

@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        height: auto;
        min-height: auto;
        padding: 150px 0 80px;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 60px;
    }

    .hero p {
        margin: 0 auto 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--card);
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-links li {
        margin: 15px 0;
    }

    .mobile-menu {
        display: block;
        z-index: 1000;
    }

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

    .testimonial {
        padding: 40px 30px;
    }

    .testimonial-content {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }

    .hero h1 {
        font-size: 2.3rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .section-title p {
        font-size: 1rem;
    }

    .testimonial {
        padding: 30px 20px;
    }

    .testimonial-content::before,
    .testimonial-content::after {
        font-size: 2rem;
    }

    .testimonial-content::before {
        left: -15px;
    }

    .testimonial-content::after {
        right: -15px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}