:root {
    --primary-color: #1a2a6c;
    --secondary-color: #6a11cb;
    --accent-color: #ff7e5f;
    --text-color: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s ease;
}

body {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-color);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px 40px;
}

.header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #ffffff, #ff7e5f);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.header::after {
    content: "";
    display: block;
    width: 100px;
    height: 4px;
    background: var(--accent-color);
    margin: 20px auto;
    border-radius: 2px;
}

.reference-note {
    background: rgba(255, 126, 95, 0.2);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 40px;
    text-align: center;
    font-size: 1rem;
    border-left: 4px solid var(--accent-color);
}

article {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 60px;
}

article h2 {
    font-size: 1.8rem;
    color: var(--accent-color);
    margin-top: 40px;
    position: relative;
    padding-bottom: 10px;
}

article h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
}

article h3 {
    font-size: 1.4rem;
    margin: 30px 0 15px;
    color: #ffffff;
}

article p {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 20px;
    overflow: auto;
    margin: 25px 0;
    border-left: 4px solid var(--accent-color);
}

code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #f8f8f2;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color);
    transition: var(--transition);
}

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

.feature-card:hover::before {
    width: 8px;
}

.feature-card h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.feature-card p {
    font-size: 1rem;
    margin-bottom: 15px;
}

.feature-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.feature-card .tag {
    background: rgba(255, 126, 95, 0.2);
    color: var(--accent-color);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.gallery-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    aspect-ratio: 1/1;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-image:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.gallery-image:hover img {
    transform: scale(1.1);
}

.nav-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 30px 0;
    position: sticky;
    top: 20px;
    z-index: 100;
    background: rgba(26, 42, 108, 0.9);
    padding: 15px;
    border-radius: 8px;
    backdrop-filter: blur(5px);
}

.nav-tabs a {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 20px;
    transition: var(--transition);
    font-size: 0.9rem;
}

.nav-tabs a:hover {
    background: rgba(255, 126, 95, 0.3);
}

.nav-tabs a.active {
    background: var(--accent-color);
    color: #000;
}

.footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .container {
        padding: 60px 15px 30px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    article {
        padding: 20px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-tabs {
        justify-content: center;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.floating {
    animation: float 3s ease-in-out infinite;
}