/* ==========================================
   CYBERNET ARMY - KNOWLEDGE BASE STYLES
   ========================================== */

/* CSS Variables */
:root {
    /* Colors - Military inspired but subtle */
    --color-primary: #2d5016;
    --color-primary-light: #3d6b1f;
    --color-primary-dark: #1a3d0f;
    --color-accent: #4a7c1e;
    --color-bg: #0a0f0a;
    --color-bg-secondary: #111611;
    --color-bg-elevated: #1a201a;
    --color-text: #e8f0e8;
    --color-text-secondary: #b8c8b8;
    --color-text-muted: #7a8a7a;
    --color-border: #2a3a2a;
    --color-border-light: #3a4a3a;
    
    /* Typography */
    --font-sans: 'Courier New', monospace;
    --font-mono: 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --container-width: 1200px;
    --border-radius: 4px;
    --transition-speed: 0.2s;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Explicit base font size */
}

body {
    font-family: var(--font-sans);
    font-size: 1rem; /* Ensure body inherits properly */
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    overflow-y: scroll;
}

/* Prevent layout shift while navbar loads */
body:not(.navbar-loaded) {
    opacity: 0;
}

body.navbar-loaded {
    opacity: 1;
    transition: opacity 0.15s ease-in;
}

/* ==========================================
   SCROLLBAR STYLES
   ========================================== */

* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

*::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

*::-webkit-scrollbar-track {
    background: transparent;
}

*::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: 4px;
}

*::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-border-light);
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--color-primary-light);
}

/* ==========================================
   LAYOUT
   ========================================== */

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==========================================
   HEADER
   ========================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(10, 15, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem; /* Ensure consistent font size */
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.nav-separator {
    margin: 0 var(--spacing-md);
    color: var(--color-accent);
    flex-shrink: 0;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 1rem; /* Explicit font size for nav */
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 1rem; /* Explicit font size for links */
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-speed);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
    border-bottom-color: var(--color-accent);
}

.header-right {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.discord-button {
    display: flex;
    align-items: center;
    transition: opacity var(--transition-speed), transform var(--transition-speed);
}

.discord-button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.discord-button img {
    display: block;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-speed);
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
    border-bottom: 1px solid var(--color-border);
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.title-main {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.title-sub {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-secondary);
}

.hero-desc {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-speed);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text);
    border: 1px solid var(--color-primary-light);
}

.btn-primary:hover {
    background-color: var(--color-primary-light);
    color: var(--color-text);
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(45, 80, 22, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
    text-decoration: none;
    border-color: var(--color-accent);
}

/* ==========================================
   SECTIONS
   ========================================== */

section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

/* ==========================================
   FEATURES SECTION
   ========================================== */

.features {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card:hover {
    border-color: var(--color-accent);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border: 1px solid var(--color-primary-light);
    border-radius: var(--border-radius);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    stroke: currentColor;
}

.feature-card h3 {
    color: var(--color-text);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 1rem;
    margin: 0;
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.about-intro {
    margin-bottom: var(--spacing-3xl);
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.about-lead {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xl);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.about-card {
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    transition: all var(--transition-speed);
}

.about-card:hover {
    border-color: var(--color-border-light);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.about-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.about-card-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    color: var(--color-accent);
}

.about-card-icon svg {
    width: 100%;
    height: 100%;
    stroke: currentColor;
}

.about-card h3 {
    color: var(--color-text);
    font-size: 1.5rem;
    margin-bottom: 0;
    font-weight: 600;
}

.about-card p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.about-card p:last-child {
    margin-bottom: 0;
}

.about-cta {
    text-align: center;
    padding-top: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.about-cta h3 {
    color: var(--color-text);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.about-cta > p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.about-cta-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.about-cta-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================
   KNOWLEDGE BASE SECTION
   ========================================== */

.knowledge-base {
    background-color: var(--color-bg);
}

.kb-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.kb-category-item {
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-speed);
}

.kb-category-item:hover {
    border-color: var(--color-accent);
}

.kb-category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    user-select: none;
}

.kb-category-header:hover h3 {
    color: var(--color-accent);
}

.category-icon {
    font-size: 1.5rem;
}

.kb-category-header h3 {
    color: var(--color-text);
    margin: 0;
    font-size: 1.25rem;
    flex: 1;
    transition: color var(--transition-speed);
}

.category-toggle {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
}

.category-toggle svg {
    transition: transform var(--transition-speed);
}

.kb-category-item.expanded .category-toggle svg {
    transform: rotate(180deg);
}

.kb-category-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 var(--spacing-lg);
}

.kb-category-item.expanded .kb-category-content {
    max-height: 1000px;
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.article-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.article-list li {
    margin-bottom: var(--spacing-sm);
}

.article-list a {
    display: block;
    padding: var(--spacing-sm);
    color: var(--color-text-secondary);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
}

.article-list a:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-accent);
    padding-left: var(--spacing-md);
}

.category-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-accent);
    font-weight: 500;
    transition: all var(--transition-speed);
}

.category-link:hover {
    color: var(--color-primary-light);
    transform: translateX(4px);
}

/* ==========================================
   CONTRIBUTE SECTION
   ========================================== */

.contribute-fullwidth {
    background-color: var(--color-bg);
    padding: 0;
}

.contribute-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.contribute-community-section {
    padding: calc(var(--spacing-3xl) * 1.5) var(--spacing-2xl);
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

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

.community-content h3 {
    color: var(--color-text);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
}

.community-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.community-content .contribute-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin: 0;
}

/* How to Contribute Section */
.contribute-how-section {
    padding: calc(var(--spacing-3xl) * 1.5) var(--spacing-2xl);
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.contribute-how-section h2 {
    text-align: center;
    color: var(--color-text);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-2xl);
}

.how-it-works-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.how-step {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-2xl);
    transition: border-color 0.2s ease;
}

.how-step:hover {
    border-color: var(--color-accent);
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.how-step h4 {
    color: var(--color-text);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.how-step p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin: 0;
}

.contribute-guidelines-section {
    padding: var(--spacing-xl) var(--spacing-2xl);
    background-color: var(--color-bg);
}

.guidelines-title {
    color: var(--color-text);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.contribute-guidelines-section .guidelines-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
    font-size: 1.05rem;
}

.guidelines-grid-fullwidth {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.guidelines-grid-fullwidth .guidelines-column {
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
}

.guidelines-column h5 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
}

.guidelines-good h5 {
    color: var(--color-accent);
}

.guidelines-good h5 svg {
    stroke: var(--color-accent);
}

.guidelines-bad h5 {
    color: #d32f2f;
}

.guidelines-bad h5 svg {
    stroke: #d32f2f;
}

.guideline-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.guideline-item:last-child {
    margin-bottom: 0;
}

.guideline-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.guideline-icon svg {
    width: 18px;
    height: 18px;
}

.guideline-icon-good {
    background-color: rgba(45, 80, 22, 0.2);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
}

.guideline-icon-good svg {
    stroke: var(--color-accent);
}

.guideline-icon-bad {
    background-color: rgba(211, 47, 47, 0.2);
    border: 1px solid #d32f2f;
    color: #d32f2f;
}

.guideline-icon-bad svg {
    stroke: #d32f2f;
}

.guideline-item strong {
    display: block;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.guideline-item p {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-col h4 {
    color: var(--color-text);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col a {
    color: var(--color-text-secondary);
    transition: color var(--transition-speed);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-desc {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

.footer-bottom {
    text-align: center;
    padding: var(--spacing-md) 0;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 250px;
        height: calc(100vh - 60px);
        background-color: var(--color-bg-elevated);
        border-left: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        transition: right 0.3s ease;
        z-index: 99;
    }
    
    .nav.active {
        right: 0;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .title-main {
        font-size: 2rem;
    }
    
    .title-sub {
        font-size: 1.25rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .kb-grid {
        grid-template-columns: 1fr;
    }
    
    .contribute-content {
        grid-template-columns: 1fr;
    }
    
    .guidelines-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    /* Full-width responsive */
    .intro-section {
        padding: var(--spacing-3xl) var(--spacing-xl);
    }
    
    .intro-section h2 {
        font-size: 2rem;
    }
    
    .intro-section .big-text {
        font-size: 1.1rem;
    }
    
    .mission-section,
    .beliefs-section {
        padding: var(--spacing-3xl) var(--spacing-xl);
    }
    
    .mission-section h3,
    .beliefs-section h3 {
        font-size: 1.6rem;
    }
    
    .mission-section p,
    .belief p {
        font-size: 1rem;
    }
    
    .belief h4 {
        font-size: 1.3rem;
    }
    
    .contribute-hero,
    .contribute-main-content,
    .contribute-community-section,
    .contribute-guidelines-section {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }
    
    .contribute-ways-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .how-it-works-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .guidelines-grid-fullwidth {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contribute-hero h2 {
        font-size: 1.8rem;
    }
    
    .contribute-subtitle {
        font-size: 1rem;
    }
    
    .contribute-ways-section h3,
    .community-content h3,
    .guidelines-title {
        font-size: 1.5rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   KNOWLEDGE BASE EXPLORER
   ========================================== */

/* Prevent body scroll on KB page */
body:has(.kb-explorer) {
    overflow: hidden;
    height: 100vh;
}

.kb-explorer {
    display: flex;
    height: calc(100vh - 60px);
    background: var(--color-bg);
    overflow: hidden;
}

/* Left Sidebar - Categories */
.kb-sidebar {
    width: 280px;
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.kb-sidebar-header {
    display: none;
}

.kb-sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.kb-categories {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0 100px 0;
    margin: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: relative;
}

.kb-categories > .kb-category-item:first-child {
    margin-top: 0;
}

.kb-category-item {
    display: flex;
    align-items: center;
    gap: 3px;
    width: 100%;
    padding: 0 var(--spacing-lg) !important;
    margin: 0 !important;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 0;
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-align: left;
    box-sizing: border-box;
}

.kb-category-item:hover {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border-left: 3px solid var(--color-primary-light);
    box-shadow: 0 0 20px rgba(45, 80, 22, 0.4);
}

.kb-category-item.active {
    background: var(--color-primary-dark);
    color: var(--color-primary-light);
    border-left: 3px solid var(--color-primary-light);
    box-shadow: 0 0 20px rgba(45, 80, 22, 0.4);
}

.kb-category-item.active:hover {
    background: var(--color-primary-dark);
    color: var(--color-primary-light);
    border-left: 3px solid var(--color-primary-light);
    box-shadow: 0 0 20px rgba(45, 80, 22, 0.4);
}

.kb-category-item svg {
    flex-shrink: 0;
}

/* Right Panel - Main Content */
.kb-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    margin: 0;
}

.kb-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    min-height: 45px;
}

.kb-back-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.kb-back-btn:hover {
    background: var(--color-primary-dark);
    color: var(--color-text);
    border-color: var(--color-primary);
}

.kb-breadcrumb-text {
    font-size: 1rem;
    color: var(--color-text);
    font-weight: 500;
}

.kb-content {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    position: relative;
}

/* Welcome State */
.kb-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--color-text-muted);
}

.kb-welcome h2 {
    margin-top: var(--spacing-lg);
    font-size: 1.5rem;
    color: var(--color-text-secondary);
}

.kb-welcome p {
    margin-top: var(--spacing-sm);
    font-size: 1rem;
}

/* Items Grid - File Explorer Style List */
.kb-items {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 0;
}

.kb-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-left: 3px solid transparent;
    border-radius: 0;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-speed);
    cursor: pointer;
}

.kb-item:hover {
    background: rgba(45, 80, 22, 0.05);
    border-left-color: var(--color-accent);
    border-bottom-color: var(--color-border);
}

.kb-folder {
    background: transparent;
}

.kb-folder:hover {
    background: rgba(45, 80, 22, 0.1);
}

.kb-item-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: 0;
    color: var(--color-accent);
    opacity: 0.8;
}

/* Hide file icon for articles, only show for folders */
.kb-item:not(.kb-folder) .kb-item-icon {
    display: none;
}

.kb-folder .kb-item-icon {
    background: transparent;
    color: var(--color-accent);
    opacity: 1;
}

.kb-item-content {
    flex: 1;
}

.kb-item-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    margin: 0;
}

.kb-item-description {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 4px;
    line-height: 1.4;
}

/* Article Metadata */
.kb-item-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: var(--spacing-sm);
}

.kb-item-contributor {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.kb-item-contributor svg {
    width: 14px;
    height: 14px;
    stroke: var(--color-text-muted);
    flex-shrink: 0;
}

/* Prevent icon color change on hover */
.kb-item:hover .kb-item-contributor svg {
    stroke: var(--color-text-muted);
}

.kb-item-date {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.kb-item-date-value {
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* Loading State */
.kb-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

/* Loading Overlay with Blurred Glass Effect */
.kb-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(13, 17, 12, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
}

.kb-loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.kb-loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(45, 80, 22, 0.2);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: kb-spin 0.8s linear infinite;
}

.kb-loading-content span {
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
}

@keyframes kb-spin {
    to { transform: rotate(360deg); }
}

/* Error State */
.kb-error {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.3);
    border-radius: var(--border-radius);
    color: #fca5a5;
}

/* Empty State */
.kb-empty {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--color-text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .kb-explorer {
        flex-direction: column;
        height: auto;
    }
    
    .kb-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .kb-categories {
        max-height: 300px;
    }
    
    .kb-items {
        display: flex;
        flex-direction: column;
    }
}

/* ==========================================
   ARTICLE PAGE STYLES
   ========================================== */

/* Article Container */
.article-container {
    display: flex;
    gap: 60px;
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* Article Header */
.article-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid rgba(77, 124, 30, 0.15);
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    background: rgba(77, 124, 30, 0.08);
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid rgba(77, 124, 30, 0.15);
}

.article-back:hover {
    background: rgba(77, 124, 30, 0.12);
    transform: translateX(-2px);
}

.article-back svg {
    width: 18px;
    height: 18px;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-md) 0;
    line-height: 1.2;
}

/* Table of Contents */
.article-toc {
    width: 280px;
    flex-shrink: 0;
    position: fixed;
    left: 0;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    overflow-x: hidden;
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    border-radius: 0;
    padding: var(--spacing-lg);
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

.article-toc::-webkit-scrollbar {
    width: 6px;
}

.article-toc::-webkit-scrollbar-track {
    background: transparent;
}

.article-toc::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

.article-toc-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-md) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.article-toc-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.article-toc-list {
    list-style: none;
    padding: 0 0 var(--spacing-xl) 0;
    margin: 0;
}

.article-toc-list li {
    margin: var(--spacing-xs) 0;
}

.article-toc-list a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-left: 3px solid transparent;
    margin-left: -12px;
    position: relative;
}

.article-toc-list a:hover {
    color: var(--color-accent);
}

.article-toc-list a.active {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
}

.article-toc-list .toc-h2 {
    padding-left: 0;
}

.article-toc-list .toc-h3 {
    padding-left: var(--spacing-lg);
    font-size: 0.9rem;
}

/* Article Wrapper */
.article-wrapper {
    flex: 1;
    min-width: 0;
    margin-left: calc(280px + 60px); /* TOC width + gap */
    padding: var(--spacing-lg) var(--spacing-xxl) var(--spacing-xxl) var(--spacing-xxl);
}

/* Article Content */
.article-content {
    color: var(--color-text-primary);
    line-height: 1.8;
    font-size: 1.05rem;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    color: var(--color-text-primary);
    font-weight: 600;
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
    scroll-margin-top: 80px;
}

.article-content h1 { font-size: 2.2rem; }
.article-content h2 { font-size: 1.8rem; }
.article-content h3 { font-size: 1.5rem; }
.article-content h4 { font-size: 1.3rem; }
.article-content h5 { font-size: 1.1rem; }
.article-content h6 { font-size: 1rem; }

.article-content p {
    margin: var(--spacing-md) 0;
}

.article-content a {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(77, 124, 30, 0.3);
    transition: all 0.2s ease;
}

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

.article-content ul,
.article-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin: var(--spacing-sm) 0;
}

.article-content blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--color-accent);
    background: rgba(77, 124, 30, 0.05);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-content blockquote p {
    margin: var(--spacing-sm) 0;
}

/* GitHub Alerts */
.article-content .alert {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    display: flex;
    gap: var(--spacing-md);
}

.article-content .alert-note {
    background: rgba(77, 124, 30, 0.05);
    border-color: var(--color-accent);
}

.article-content .alert-tip {
    background: rgba(0, 150, 255, 0.05);
    border-color: #0096ff;
}

.article-content .alert-important {
    background: rgba(138, 43, 226, 0.05);
    border-color: #8a2be2;
}

.article-content .alert-warning {
    background: rgba(255, 165, 0, 0.05);
    border-color: #ffa500;
}

.article-content .alert-caution {
    background: rgba(255, 0, 0, 0.05);
    border-color: #ff0000;
}

.article-content pre {
    background: #2d2d2d;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border: 1px solid rgba(77, 124, 30, 0.2);
}

.article-content code {
    font-size: 0.9em;
}

.article-content :not(pre) > code {
    background: rgba(77, 124, 30, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--color-accent);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.article-content table th,
.article-content table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border: 1px solid rgba(77, 124, 30, 0.15);
}

.article-content table th {
    background: rgba(77, 124, 30, 0.1);
    font-weight: 600;
}

.article-content hr {
    border: none;
    border-top: 2px solid rgba(77, 124, 30, 0.15);
    margin: var(--spacing-xxl) 0;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

/* Loading/Error States */
.article-loading,
.article-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    color: var(--color-text-secondary);
}

.article-loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(77, 124, 30, 0.1);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--spacing-lg);
}

.article-error svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.article-error h2 {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.article-error p {
    margin-bottom: var(--spacing-lg);
}

/* Responsive */
@media (max-width: 768px) {
    .article-container {
        flex-direction: column;
    }
    
    .article-toc {
        position: relative;
        width: 100%;
        height: auto;
        max-height: 300px;
        top: 0;
        left: 0;
    }
    
    .article-wrapper {
        margin-left: 0;
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-content h1 { font-size: 1.8rem; }
    .article-content h2 { font-size: 1.5rem; }
    .article-content h3 { font-size: 1.3rem; }
}