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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #667eea;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #667eea;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 32px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    align-items: center;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
}

.hero-features {
    display: flex;
    gap: 32px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    opacity: 0.9;
}

.hero-feature span {
    font-size: 20px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-screenshot {
    max-width: 300px;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: rotate(5deg);
    transition: transform 0.3s ease;
}

.hero-screenshot:hover {
    transform: rotate(0deg) scale(1.05);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #333;
}

.section-subtitle {
    font-size: 1.25rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #333;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* Screenshots Section */
.screenshots {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
}

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

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

.screenshot-img {
    max-width: 250px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    margin-bottom: 24px;
    transition: transform 0.3s ease;
}

.screenshot-img:hover {
    transform: scale(1.05);
}

.screenshot-caption h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.screenshot-caption p {
    color: #666;
    line-height: 1.5;
}

/* Technical Section */
.technical {
    background: white;
}

.technical-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.technical-item {
    padding: 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    color: white;
    text-align: center;
}

.technical-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.technical-item p {
    opacity: 0.9;
    line-height: 1.5;
}

/* Download Section */
.download {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.download-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.download .section-title,
.download .section-subtitle {
    color: white;
    text-align: left;
}

.getting-started-steps {
    margin: 48px 0;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-content p {
    opacity: 0.9;
    line-height: 1.5;
}

.download-buttons {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.app-store-button {
    display: inline-block;
    transition: transform 0.3s ease;
}

.app-store-button:hover {
    transform: translateY(-2px);
}

.app-store-img {
    height: 60px;
    width: auto;
}

.hero-app-store {
    display: flex;
    align-items: center;
    height: 56px;
}

.hero-app-store .app-store-img {
    height: 100%;
    filter: brightness(1.1);
}

.download-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.download-logo {
    width: 200px;
    height: 200px;
    opacity: 0.1;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 40px 0;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-img {
    width: 32px;
    height: 32px;
    opacity: 0.8;
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 600;
}

.footer-text {
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto 24px;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
}

.footer-link {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    font-weight: 500;
}

.footer-link:hover {
    opacity: 1;
}

.footer-copyright {
    opacity: 0.6;
    font-size: 14px;
}

.footer-copyright p {
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .nav-links {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .screenshots-grid,
    .technical-grid {
        grid-template-columns: 1fr;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download .section-title,
    .download .section-subtitle {
        text-align: center;
    }
    
    .download-buttons {
        justify-content: center;
        align-items: center;
    }
    
    .hero-screenshot {
        max-width: 250px;
    }
    
    .footer-links {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
    }
    
    .btn-large {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .technical-item {
        padding: 24px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}