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

:root {
    --primary-blue: #0d66d0;
    --dark-bg: #1e1e1e;
    --light-text: #ffffff;
    --gray-text: #b8b8b8;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #000;
    color: var(--light-text);
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav .logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--light-text);
    text-decoration: none;
}

nav .nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

nav .nav-links a {
    color: var(--gray-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

nav .cta-btn {
    background: var(--primary-blue);
    color: white;
    padding: 12px 24px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

nav .cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(13, 102, 208, 0.4);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.hero::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero h1 {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #fff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 24px;
    color: var(--gray-text);
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.btn-primary {
    background: var(--primary-blue);
    color: white;
    padding: 16px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(13, 102, 208, 0.5);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 16px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s;
}

.btn-secondary:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.1);
}

/* Features Section */
.features {
    padding: 120px 60px;
    background: #0a0a0a;
}

.section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-subtitle {
    text-align: center;
    font-size: 20px;
    color: var(--gray-text);
    margin-bottom: 80px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-blue);
    box-shadow: 0 20px 60px rgba(13, 102, 208, 0.2);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
    font-weight: 600;
}

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

/* Screenshots Section */
.screenshots {
    padding: 120px 60px;
    background: linear-gradient(180deg, #0a0a0a 0%, #1a1a2e 100%);
}

.screenshot-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1400px;
    margin: 0 auto 100px auto;
    align-items: center;
}

.screenshot-item:nth-child(even) {
    direction: rtl;
}

.screenshot-item:nth-child(even) > * {
    direction: ltr;
}

.screenshot-content h3 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 700;
}

.screenshot-content p {
    font-size: 18px;
    color: var(--gray-text);
    line-height: 1.8;
}

.screenshot-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s;
}

.screenshot-image:hover {
    transform: scale(1.02);
}

.screenshot-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Timeline Section */
.timeline-section {
    padding: 120px 60px;
    background: #0a0a0a;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-blue), #764ba2);
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
    border: 4px solid #0a0a0a;
    z-index: 1;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.03);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 1;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
}

.timeline-content h3 {
    font-size: 28px;
    margin-bottom: 12px;
    color: var(--primary-blue);
}

.timeline-content p {
    color: var(--gray-text);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 120px 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
}

.cta-section h2 {
    font-size: 52px;
    margin-bottom: 24px;
    font-weight: 700;
}

.cta-section p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* Footer */
footer {
    padding: 40px 60px;
    background: #000;
    text-align: center;
    color: var(--gray-text);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 20px 30px;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero p {
        font-size: 18px;
    }

    .features, .screenshots, .timeline-section, .cta-section {
        padding: 80px 30px;
    }

    .screenshot-item,
    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item::before {
        left: 20px;
    }

    .timeline-item:nth-child(even) .timeline-content {
        grid-column: 1;
    }

    .timeline-content {
        margin-left: 60px;
    }
}