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

body {
    font-family: 'Open Sans', sans-serif;
    background: url('../img/intro-big.jpg') no-repeat center center fixed;
    background-size: cover;
    color: #fff;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

/* Navigation */
.main-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
    gap: 0;
    position: relative;
    z-index: 100;
}

.nav-item {
    background: rgba(50, 50, 50, 0.9);
    padding: 15px 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-item:first-child {
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-item:hover,
.nav-item.active {
    background: rgba(80, 80, 80, 0.95);
}

.nav-item.active {
    background: rgba(255, 204, 0, 0.9);
    color: #000;
}

.nav-item i {
    font-size: 24px;
    margin-bottom: 8px;
}

.nav-item span {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 60px;
}

.main-title {
    font-size: 64px;
    font-weight: 300;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 18px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
}

/* Quick Tools Section */
.tools-section {
    margin-bottom: 30px;
    text-align: center;
}

.fusion-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 204, 0, 0.15);
    padding: 12px 25px;
    border-radius: 25px;
    border: 2px solid rgba(255, 204, 0, 0.4);
    color: #ffcc00;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.fusion-link:hover {
    background: rgba(255, 204, 0, 0.25);
    border-color: #ffcc00;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 204, 0, 0.3);
}

.fusion-link i:first-child {
    font-size: 18px;
}

.fusion-link i:last-child {
    font-size: 14px;
}

/* Gallery Section */
.gallery-section {
    margin-bottom: 80px;
}

.gallery-container {
    background: rgba(0, 0, 0, 0.85);
    padding: 40px;
    border-radius: 2px;
}

.section-title {
    font-size: 42px;
    font-weight: 300;
    margin-bottom: 20px;
    color: #fff;
    text-align: center;
}

.section-description {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 50px;
    text-align: center;
}

.section-description a {
    color: #ffcc00;
    text-decoration: none;
}

.section-description a:hover {
    text-decoration: underline;
}

/* Hero Features */
.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.hero-feature {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255, 204, 0, 0.1);
    border-radius: 8px;
    border: 2px solid rgba(255, 204, 0, 0.3);
    transition: all 0.3s ease;
}

.hero-feature:hover {
    transform: translateY(-5px);
    border-color: #ffcc00;
    background: rgba(255, 204, 0, 0.15);
}

.hero-number {
    font-size: 48px;
    font-weight: 700;
    color: #ffcc00;
    margin-bottom: 10px;
}

.hero-feature p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
}

/* Value Propositions */
.value-props {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.value-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.value-card.featured {
    border-color: rgba(255, 204, 0, 0.3);
}

.value-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: #ffcc00;
    box-shadow: 0 10px 30px rgba(255, 204, 0, 0.2);
}

.value-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, rgba(255, 204, 0, 0.3), rgba(255, 204, 0, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.value-card:hover .value-icon {
    transform: scale(1.1) rotate(360deg);
    background: linear-gradient(135deg, #ffcc00, rgba(255, 204, 0, 0.5));
}

.value-icon i {
    font-size: 42px;
    color: #ffcc00;
}

.value-card:hover .value-icon i {
    color: #000;
}

.value-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #fff;
    font-weight: 600;
}

.value-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

/* Why Choose Section */
.why-choose-section {
    background: rgba(255, 204, 0, 0.05);
    padding: 40px;
    border-radius: 8px;
    margin-bottom: 60px;
    border: 2px solid rgba(255, 204, 0, 0.2);
}

.subsection-title {
    font-size: 28px;
    color: #ffcc00;
    text-align: center;
    margin-bottom: 30px;
    font-weight: 600;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.benefit-item i {
    font-size: 24px;
    color: #ffcc00;
    flex-shrink: 0;
}

.benefit-item span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Use Cases */
.use-cases {
    margin-bottom: 60px;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
}

.use-case-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px 25px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.use-case-card:hover {
    border-color: rgba(255, 204, 0, 0.5);
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

.use-case-card i {
    font-size: 48px;
    color: #ffcc00;
    margin-bottom: 20px;
}

.use-case-card h4 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 12px;
    font-weight: 600;
}

.use-case-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

/* Testimonial Section */
.testimonial-section {
    background: linear-gradient(135deg, rgba(255, 204, 0, 0.1), rgba(255, 204, 0, 0.05));
    padding: 50px 40px;
    border-radius: 8px;
    border: 2px solid rgba(255, 204, 0, 0.3);
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.quote-icon {
    font-size: 48px;
    color: #ffcc00;
    margin-bottom: 20px;
    opacity: 0.5;
}

.testimonial-text {
    font-size: 20px;
    line-height: 1.8;
    color: #fff;
    font-style: italic;
    margin-bottom: 25px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.testimonial-author strong {
    font-size: 18px;
    color: #ffcc00;
}

.testimonial-author span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* Content Cards */
.cta-section {
    text-align: center;
    margin-top: 50px;
    padding: 40px;
    background: rgba(255, 204, 0, 0.1);
    border-radius: 4px;
    border: 2px solid rgba(255, 204, 0, 0.3);
}

.cta-section h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #fff;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 25px;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: #ffcc00;
    color: #000;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    background: #ffd633;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(255, 204, 0, 0.4);
}

/* Main Gallery */
.main-gallery {
    margin-bottom: 20px;
}

.gallery-main-image {
    width: 100%;
    height: 500px;
    overflow: hidden;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-main-image img:hover {
    transform: scale(1.05);
}

/* Thumbnail Gallery */
.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
}

.thumbnail-item {
    cursor: pointer;
    overflow: hidden;
    height: 100px;
    border: 3px solid transparent;
    transition: all 0.3s ease;
}

.thumbnail-item.active {
    border-color: #ffcc00;
}

.thumbnail-item:hover {
    border-color: rgba(255, 204, 0, 0.6);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.thumbnail-item:hover img {
    transform: scale(1.1);
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    background: rgba(0, 0, 0, 0.7);
}

.social-links {
    margin-bottom: 20px;
}

.social-icon {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    margin: 0 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-icon:hover {
    background: #ffcc00;
    color: #000;
    transform: translateY(-3px);
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-nav {
        flex-wrap: wrap;
    }
    
    .nav-item {
        min-width: 80px;
        padding: 12px 15px;
    }
    
    .nav-item i {
        font-size: 20px;
    }
    
    .nav-item span {
        font-size: 10px;
    }
    
    .main-title {
        font-size: 42px;
    }
    
    .gallery-container {
        padding: 20px;
    }
    
    .gallery-main-image {
        height: 300px;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .thumbnail-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}