* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0a0a0a;
    color: #e5e5e5;
    line-height: 1.6;
}

/* Navigation Bar */
.navbar {
    background-color: #000000;
    padding: 1rem 2rem;
    border-bottom: 1px solid #333;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    text-decoration: none;
}
.logo img {
    width: 300px;
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: #e5e5e5;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    background-color: #1a1a1a;
    color: #ffffff;
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    margin-top: 80px;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 80px;
    width: 280px;
    height: calc(100vh - 80px);
    background-color: #111111;
    border-right: 1px solid #333;
    overflow-y: auto;
    padding: 2rem 0;
}

.sidebar-section {
    margin-bottom: 2rem;
}

.sidebar-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 1.5rem;
    margin-bottom: 1rem;
}

.sidebar-links {
    list-style: none;
}

.sidebar-links li {
    margin-bottom: 0.5rem;
}

.sidebar-links a {
    display: block;
    color: #e5e5e5;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-links a:hover,
.sidebar-links a.active {
    background-color: #1a1a1a;
    color: #ffffff;
    border-left-color: #ffffff;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    padding: 2rem;
    min-height: calc(100vh - 80px);
}

/* Content Sections */
.doc-section {
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #333;
}

.doc-section:last-child {
    border-bottom: none;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1.5rem;
    margin-top: 2rem;
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
    color: #ffffff;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

h4 {
    font-size: 1.2rem;
    font-weight: 500;
    color: #cccccc;
    margin-bottom: 0.75rem;
    margin-top: 1rem;
}

p {
    margin-bottom: 1rem;
    color: #e5e5e5;
    font-size: 1rem;
}

/* Feature Cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-card {
    background-color: #111111;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: #555;
    transform: translateY(-2px);
}

.feature-card h4 {
    color: #ffffff;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #cccccc;
    font-size: 0.95rem;
}

/* Code Blocks */
.code-block {
    background-color: #000000;
    border: 1px solid #333;
    border-radius: 6px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.code-block code {
    color: #e5e5e5;
}

/* Tables */
.doc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background-color: #111111;
    border: 1px solid #333;
    border-radius: 6px;
    overflow: hidden;
}

.doc-table th,
.doc-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #333;
}

.doc-table th {
    background-color: #000000;
    color: #ffffff;
    font-weight: 600;
}

.doc-table td {
    color: #e5e5e5;
}

.doc-table tr:last-child td {
    border-bottom: none;
}

/* Image Containers */
.image-container {
    margin: 2rem 0;
    background-color: #111111;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
}

.image-caption {
    padding: 1rem;
    color: #cccccc;
    font-size: 0.9rem;
    font-style: italic;
}

/* Video Containers */
.video-container {
    margin: 2rem 0;
    background-color: #111111;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/9;
}
.video-container video {
    width: 100%;
}

.video-placeholder {
    padding: 15px;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000000;
    color: #888;
    font-size: 1.1rem;
}

/* Lists */
ul, ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
    color: #e5e5e5;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: #ffffff;
    color: #000000;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #e5e5e5;
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid #ffffff;
}

.btn-outline:hover {
    background-color: #ffffff;
    color: #000000;
}

/* Alert Boxes */
.alert {
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 6px;
    border-left: 4px solid;
}

.alert-info {
    background-color: #0a1929;
    border-left-color: #ffffff;
    color: #e5e5e5;
}

.alert-warning {
    background-color: #1a1a0a;
    border-left-color: #ffcc00;
    color: #e5e5e5;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .main-content {
        margin-left: 0;
    }

    .navbar {
        padding: 1rem;
    }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }
}