:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --dark-bg: #0f0f23;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #b8b8d1;
    --border-color: rgba(255, 255, 255, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Gradient Background */
.gradient-bg {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    bottom: -150px;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* Neural Network Background */
.neural-network {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0.1;
    pointer-events: none;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 10px rgba(102, 126, 234, 0.6));
}

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

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

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

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 6rem 2rem 2rem;
}

/* Hero Section */
.hero-section {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease-out;
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 800;
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

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

.gradient-text::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(20px);
    opacity: 0.5;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    min-height: 2.5rem;
    animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

.typing-text {
    display: inline-block;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 4rem;
    animation: fadeInUp 0.6s ease-out 0.6s backwards;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-icon {
    transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
    transform: translateX(5px);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 800px;
    animation: fadeInUp 0.6s ease-out 0.8s backwards;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Features Section */
.features-section {
    padding: 6rem 0;
}

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

.section-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

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

.feature-card {
    padding: 2.5rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

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

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 50%;
    filter: blur(30px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover .icon-glow {
    opacity: 0.3;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.feature-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.4rem 1rem;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    color: #667eea;
}

/* Timeline Section */
.timeline-section {
    padding: 6rem 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, 
        rgba(102, 126, 234, 0) 0%,
        rgba(102, 126, 234, 0.5) 50%,
        rgba(102, 126, 234, 0) 100%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 3rem 4rem;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-marker {
    position: absolute;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-gradient);
    border: 4px solid var(--dark-bg);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.6);
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
}

.timeline-item.active .timeline-marker {
    width: 30px;
    height: 30px;
    animation: pulse-marker 2s ease-in-out infinite;
}

@keyframes pulse-marker {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); box-shadow: 0 0 30px rgba(102, 126, 234, 1); }
}

.timeline-content {
    padding: 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-content {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.timeline-date {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-gradient);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
}

.cta-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 4rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.1;
}

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

.cta-content p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-visual {
    position: relative;
    height: 300px;
}

.floating-element {
    position: absolute;
    font-size: 4rem;
    animation: floatRandom 4s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.6));
}

.floating-element.e1 {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.floating-element.e2 {
    top: 60%;
    right: 20%;
    animation-delay: -1s;
}

.floating-element.e3 {
    bottom: 20%;
    left: 30%;
    animation-delay: -2s;
}

.floating-element.e4 {
    top: 40%;
    right: 40%;
    animation-delay: -3s;
}

@keyframes floatRandom {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(10px, -10px) rotate(5deg);
    }
    50% {
        transform: translate(-5px, 5px) rotate(-5deg);
    }
    75% {
        transform: translate(5px, 10px) rotate(3deg);
    }
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-section a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: var(--text-primary);
    transform: translateX(5px);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.8;
}

.newsletter-form {
    display: flex;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px 0 0 8px;
    color: var(--text-primary);
    outline: none;
}

.newsletter-form button {
    padding: 0.75rem 1.5rem;
    background: var(--primary-gradient);
    border: none;
    border-radius: 0 8px 8px 0;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    opacity: 0.9;
    transform: translateX(2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

/* Responsive */
@media (max-width: 1024px) {
    .nav-links {
        gap: 1.5rem;
    }
    
    .cta-card {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 3rem 2rem;
    }
    
    .timeline::before {
        left: 0;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        text-align: left;
        padding: 0 0 4rem 3rem;
    }
    
    .timeline-item .timeline-marker {
        left: -10px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .container {
        padding: 5rem 1.5rem 1.5rem;
    }
    
    .hero-section {
        min-height: 80vh;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}