/* =========================================================================
   LLMesh Documentation Theme & Style Tokens (Vanilla CSS)
   ========================================================================= */

:root {
    /* Color Palette */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-code: #090d16;
    
    --border-color: #374151;
    --border-glow: rgba(99, 102, 241, 0.25);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --text-accent: #818cf8; /* Indigo accent */
    --text-accent-secondary: #c084fc; /* Violet accent */
    
    --badge-bg: rgba(99, 102, 241, 0.15);
    --badge-border: rgba(99, 102, 241, 0.3);
    
    --font-heading: 'Outfit', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-code: 'Fira Code', monospace;
    
    --sidebar-width: 280px;
    --header-height: 70px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 15px 0 rgba(99, 102, 241, 0.15);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: var(--text-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--text-accent-secondary);
}

/* Main Structure */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-accent {
    background: linear-gradient(135deg, var(--text-accent), var(--text-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge {
    font-size: 0.75rem;
    font-family: var(--font-body);
    font-weight: 500;
    padding: 2px 8px;
    background-color: var(--badge-bg);
    border: 1px solid var(--badge-border);
    border-radius: 9999px;
    color: var(--text-accent);
}

.github-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
}

.github-link:hover {
    color: var(--text-primary);
    border-color: var(--text-accent);
    background-color: rgba(99, 102, 241, 0.05);
    box-shadow: var(--shadow-glow);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
}

/* Workspace Layout */
.workspace {
    display: flex;
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar Navigation */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    z-index: 90;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.search-box {
    padding: 1.5rem 1.25rem 1rem;
    position: sticky;
    top: 0;
    background-color: var(--bg-secondary);
    z-index: 10;
}

.search-box input {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: all 0.2s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--text-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1rem 1.25rem 2rem;
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-section-title {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

.nav-link {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.6rem 0.75rem;
    border-radius: 6px;
    transition: all 0.25s ease;
    border-left: 2px solid transparent;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.02);
    padding-left: 0.9rem;
}

.nav-link.active {
    color: var(--text-accent);
    background-color: rgba(99, 102, 241, 0.06);
    border-left-color: var(--text-accent);
    font-weight: 600;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    z-index: 85;
}

/* Content Viewport */
.content-viewport {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2.5rem 4rem 4rem;
    max-width: 1012px;
    width: 100%;
    position: relative;
}

.loading-indicator {
    display: none;
    position: absolute;
    top: 3rem;
    right: 4rem;
    z-index: 50;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--text-accent);
    animation: spin 0.8s linear infinite;
}

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

/* =========================================================================
   Markdown Styling (Typography & Layout)
   ========================================================================= */

.markdown-body {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
    letter-spacing: -0.3px;
}

.markdown-body h1 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-top: 0;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.markdown-body h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.5rem;
    margin-top: 2.5rem;
}

.markdown-body h3 {
    font-size: 1.2rem;
}

.markdown-body p {
    margin-bottom: 1.25rem;
    color: #d1d5db; /* lighter text */
}

.markdown-body strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* Lists */
.markdown-body ul,
.markdown-body ol {
    margin-bottom: 1.25rem;
    padding-left: 1.75rem;
}

.markdown-body li {
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

/* Callouts / Blockquotes */
.markdown-body blockquote {
    padding: 1rem 1.25rem;
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--text-accent);
    border-radius: 0 8px 8px 0;
    margin-bottom: 1.25rem;
    color: #e5e7eb;
}

.markdown-body blockquote p {
    margin-bottom: 0;
}

/* Highlight / Alert boxes */
.markdown-body .alert {
    padding: 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
}

.markdown-body .alert-tip {
    background-color: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.2);
    color: #a7f3d0;
}

.markdown-body .alert-warning {
    background-color: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.2);
    color: #fde68a;
}

/* Code Blocks */
.markdown-body code {
    font-family: var(--font-code);
    font-size: 0.85em;
    padding: 0.2rem 0.4rem;
    background-color: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    color: #f43f5e; /* pink-ish for inline code */
}

.markdown-body pre {
    background-color: var(--bg-code) !important;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    position: relative;
}

.markdown-body pre code {
    background-color: transparent;
    padding: 0;
    font-size: 0.9rem;
    color: inherit;
    border-radius: 0;
}

/* Copy Snippet Button */
.code-wrapper {
    position: relative;
}

.copy-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0;
}

.code-wrapper:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-accent);
    background-color: rgba(99, 102, 241, 0.1);
}

.copy-btn.copied {
    color: #10b981;
    border-color: #10b981;
    background-color: rgba(16, 185, 129, 0.1);
}

/* Tables */
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.markdown-body th,
.markdown-body td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.markdown-body th {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
}

.markdown-body tr:hover {
    background-color: rgba(255, 255, 255, 0.01);
}

/* =========================================================================
   Responsive Media Queries
   ========================================================================= */

@media (max-width: 1024px) {
    .content-viewport {
        padding: 2rem 2.5rem 3rem;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    
    .app-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: none;
    }
    
    .app-sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }
    
    .sidebar-overlay.open {
        display: block;
    }
    
    .content-viewport {
        margin-left: 0;
        padding: 2rem 1.5rem 3rem;
    }
}