:root {
    /* Logo colors - vibrant blue from the icon */
    --primary-blue: #1E90FF;
    --primary-blue-dark: #0066CC;
    --primary-blue-darker: #004C99;
    --accent-blue: #4DA6FF;
    --accent-light: #66B3FF;

    /* Neutrals */
    --black: #0A0A0A;
    --dark-gray: #1a1a1a;
    --medium-gray: #2a2a2a;
    --light-gray: #666666;
    --white: #ffffff;
    --off-white: #f5f5f5;

    /* Gradients */
    --gradient-blue: linear-gradient(135deg, #1E90FF 0%, #0066CC 100%);
    --gradient-dark: linear-gradient(180deg, #0A0A0A 0%, #1a1a1a 100%);

    --sidebar-width: 300px;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
}

.container-nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    background-color: var(--dark-gray);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--primary-blue);
}

.navbar .container-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: opacity 0.3s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-placeholder {
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--white);
    box-shadow: 0 4px 12px rgba(30, 144, 255, 0.3);
}

.logo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

/* Buttons */
.btn {
    padding: 12px 32px;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(30, 144, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 144, 255, 0.4);
    color: var(--white);
}

/* Docs Container */
.docs-container {
    display: flex;
    min-height: calc(100vh - 80px);
}

/* Sidebar */
.docs-sidebar {
    width: var(--sidebar-width);
    background-color: var(--dark-gray);
    border-right: 1px solid var(--medium-gray);
    position: sticky;
    top: 80px;
    height: calc(100vh - 80px);
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--medium-gray);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--accent-blue);
}

.search-input {
    width: 100%;
    padding: 10px 16px;
    background-color: var(--medium-gray);
    border: 1px solid var(--light-gray);
    border-radius: 6px;
    color: var(--white);
    font-size: 14px;
    font-family: 'Roboto', sans-serif;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.sidebar-content {
    padding: 16px;
}

.loading {
    text-align: center;
    color: var(--light-gray);
    padding: 20px;
}

.category {
    margin-bottom: 24px;
}

.category-title {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-blue);
    margin-bottom: 8px;
    padding: 8px 12px;
    letter-spacing: 0.5px;
}

.doc-list {
    list-style: none;
}

.doc-item {
    margin-bottom: 4px;
}

.doc-link {
    display: block;
    padding: 10px 12px;
    color: var(--white);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.95rem;
}

.doc-link:hover {
    background-color: var(--medium-gray);
    color: var(--accent-blue);
}

.doc-link.active {
    background-color: var(--primary-blue);
    color: var(--white);
}

.doc-description {
    font-size: 0.8rem;
    color: var(--light-gray);
    margin-top: 4px;
    display: block;
}

/* Main Content */
.docs-main {
    flex: 1;
    padding: 40px 60px;
    max-width: 900px;
    margin: 0 auto;
}

.doc-content {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Welcome Screen */
.welcome h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--accent-blue);
}

.welcome > p {
    font-size: 1.25rem;
    color: var(--light-gray);
    margin-bottom: 40px;
}

.quick-links h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.quick-link-card {
    background-color: var(--dark-gray);
    border: 2px solid var(--medium-gray);
    border-radius: 8px;
    padding: 24px;
    text-decoration: none;
    transition: all 0.3s;
}

.quick-link-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-2px);
}

.quick-link-card h4 {
    color: var(--accent-blue);
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.quick-link-card p {
    color: var(--light-gray);
    font-size: 0.95rem;
}

/* Documentation Content Styles */
.doc-content h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--accent-blue);
    border-bottom: 2px solid var(--medium-gray);
    padding-bottom: 16px;
}

.doc-content h2 {
    font-size: 2rem;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--white);
}

.doc-content h3 {
    font-size: 1.5rem;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--white);
}

.doc-content h4 {
    font-size: 1.25rem;
    margin-top: 24px;
    margin-bottom: 12px;
    color: var(--white);
}

.doc-content p {
    margin-bottom: 16px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.doc-content ul,
.doc-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.doc-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.doc-content code {
    background-color: var(--medium-gray);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9em;
    color: var(--accent-blue);
}

.doc-content pre {
    background-color: var(--medium-gray);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 16px;
    border: 1px solid var(--light-gray);
}

.doc-content pre code {
    background: none;
    padding: 0;
    color: var(--white);
}

.doc-content blockquote {
    border-left: 4px solid var(--primary-blue);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--light-gray);
    font-style: italic;
}

.doc-content a {
    color: var(--accent-blue);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.doc-content a:hover {
    border-bottom-color: var(--accent-blue);
}

.doc-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
}

.doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.doc-content th,
.doc-content td {
    padding: 12px;
    border: 1px solid var(--medium-gray);
    text-align: left;
}

.doc-content th {
    background-color: var(--medium-gray);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
    .docs-sidebar {
        width: 250px;
    }
    
    .docs-main {
        padding: 30px 40px;
    }
}

@media (max-width: 768px) {
    .docs-container {
        flex-direction: column;
    }
    
    .docs-sidebar {
        width: 100%;
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--medium-gray);
    }
    
    .docs-main {
        padding: 20px;
    }
    
    .quick-links-grid {
        grid-template-columns: 1fr;
    }
}