/* Landing Page Specific Styles */

/* Particles JS Background */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

/* Hero Section */
.hero {
    padding: 10rem 0 5rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(124, 77, 255, 0.2), transparent 50%),
                radial-gradient(circle at 30% 70%, rgba(0, 229, 255, 0.2), transparent 50%);
    z-index: -1;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.hero-content {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
    margin-right: var(--space-lg);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: var(--space-lg);
    color: var(--text-secondary-dark);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
}

.hero-image {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 4px solid rgba(255, 255, 255, 0.05);
    transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
    transition: all 0.5s ease;
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
}

/* Features Section */
.features {
    background-color: var(--dark-surface);
    padding: var(--space-xl) 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.feature-card {
    background: rgba(30, 30, 30, 0.5);
    padding: var(--space-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1.8rem;
    color: white;
}

.feature-card h3 {
    margin-bottom: var(--space-sm);
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-secondary-dark);
    font-size: 0.95rem;
}

/* Topics Preview Section */
.topics-preview {
    padding: var(--space-xl) 0;
}

.topics-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.topic-card {
    background: rgba(30, 30, 30, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.topic-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.topic-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary-dark), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-sm);
}

.topic-icon i {
    font-size: 1.5rem;
    color: white;
}

.topic-card h3 {
    margin-bottom: var(--space-sm);
    font-size: 1.3rem;
}

.topic-card p {
    color: var(--text-secondary-dark);
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.center-btn {
    text-align: center;
    margin-top: var(--space-lg);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    padding: var(--space-xl) 0;
    text-align: center;
    border-radius: var(--border-radius-lg);
    margin: var(--space-xl) 0;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    color: white;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: var(--space-lg);
    color: rgba(255, 255, 255, 0.8);
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        margin-right: 0;
        margin-bottom: var(--space-lg);
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
}