/* 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;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-logo h2 {
    color: white;
    font-weight: 700;
    font-size: 1.5rem;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #a8b2ff;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.glassbox-preview {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 20px;
    width: 300px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.preview-title {
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.preview-close {
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 1.2rem;
}

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

.preview-button {
    background: rgba(102, 126, 234, 0.3);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(102, 126, 234, 0.5);
}

.preview-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    font-style: italic;
}

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 3rem;
}

/* Features Section */
.features {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

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

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    background: rgba(0, 0, 0, 0.1);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step h3 {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step p {
    color: rgba(255, 255, 255, 0.8);
}

/* Installation Section */
.installation {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

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

.install-step {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
}

.install-step h3 {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.install-step p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

.install-step ol {
    color: rgba(255, 255, 255, 0.8);
    padding-left: 1.5rem;
}

.install-step li {
    margin-bottom: 0.5rem;
}

.install-step code {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

/* Demo Section */
.demo {
    background: rgba(0, 0, 0, 0.1);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.video-placeholder {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.play-button {
    font-size: 3rem;
    margin-bottom: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
}

.demo-text h3 {
    color: white;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.demo-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* About Section */
.about {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.about-text h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.about-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    line-height: 1.6;
}

.footer-section a:hover {
    color: white;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .demo-content {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .install-steps {
        grid-template-columns: 1fr;
    }
}

.install-step .note {
    font-size: 0.875rem;
    color: #64748b;
    margin-top: 0.5rem;
    font-style: italic;
}