/* ============================================================
   CyberCompile - Stylesheet
   Dark, minimal, professional theme
   ============================================================ */

/* CSS Variables */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a24;
    --bg-hover: #24243a;
    --bg-active: #2d2d45;
    
    --text-primary: #e5e5e5;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    
    --accent-primary: #6366f1;  /* Indigo */
    --accent-secondary: #f59e0b; /* Amber */
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #f59e0b 100%);
    
    --border-color: #2a2a3a;
    --border-light: #3a3a4a;
    
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Spacing */
    --container-width: 1400px;
    --content-width: 900px;
    --sidebar-width: 280px;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: white;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ============================================================
   Navigation Bar
   ============================================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background var(--transition-normal);
}

.nav-container {
    max-width: var(--container-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.25rem;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-gradient);
}

.logo-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ============================================================
   Hero Section
   ============================================================ */

.hero {
    position: relative;
    padding: 8rem 0 4rem;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-container {
    position: relative;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
}

.hero-content {
    flex: 1;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-decoration {
    position: absolute;
    right: -50px;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    opacity: 0.6;
    z-index: 0;
}

.hero-svg {
    width: 100%;
    height: 100%;
}

/* ============================================================
   Search Section
   ============================================================ */

.search-section {
    padding: 2rem 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.search-container-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.search-icon {
    position: absolute;
    left: 1rem;
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 3rem 0.875rem 3rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-clear {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text-muted);
    display: none;
    transition: color var(--transition-fast);
}

.search-clear:hover {
    color: var(--text-primary);
}

.search-clear.visible {
    display: flex;
}

.search-results {
    max-width: 600px;
    margin: 1rem auto 0;
    padding: 0 1.5rem;
}

.search-result-item {
    display: block;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-left: 3px solid transparent;
}

.search-result-item:hover {
    background: var(--bg-hover);
    border-left-color: var(--accent-primary);
}

.search-result-item h4 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.search-result-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.search-result-item .result-path {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-top: 0.25rem;
}

.search-no-results {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

/* ============================================================
   Main Content
   ============================================================ */

main {
    flex: 1;
    padding: 2rem 0 4rem;
}

.sections-section {
    padding: 2rem 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

/* Navigation Tree Layout */
.nav-tree-container {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .nav-tree-container {
        grid-template-columns: 1fr;
    }
    
    .nav-sidebar {
        max-height: 300px;
        overflow-y: auto;
        margin-bottom: 2rem;
    }
}

/* Navigation Sidebar */
.nav-sidebar {
    position: sticky;
    top: 80px;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.nav-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.nav-tree {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-tree li {
    margin-bottom: 0.25rem;
}

.nav-tree ul {
    list-style: none;
    padding-left: 1rem;
    margin-top: 0.5rem;
    display: none;
}

.nav-tree li.expanded > ul {
    display: block;
}

.nav-tree li.has-children > a {
    padding-right: 1.5rem;
    position: relative;
}

.nav-tree li.has-children > a::after {
    content: '';
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: translateY(-50%) rotate(45deg);
    transition: transform var(--transition-fast);
}

.nav-tree li.expanded > a::after {
    transform: translateY(-50%) rotate(-135deg);
}

.nav-tree li > a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-tree li > a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-tree li.active > a {
    background: var(--bg-active);
    color: var(--accent-primary);
}

.nav-tree li.active > a::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
    margin-right: 0.5rem;
}

/* Content Area */
.content-area {
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    min-height: 400px;
    overflow: hidden;
}

.content-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
}

.content-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.content-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.meta-item {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.edit-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.edit-link:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.edit-link svg {
    width: 14px;
    height: 14px;
}

.content-display {
    padding: 2rem;
    min-height: 300px;
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    color: var(--text-muted);
    text-align: center;
    gap: 1rem;
}

.placeholder-icon {
    width: 64px;
    height: 64px;
    opacity: 0.5;
}

.placeholder-content p {
    font-size: 1rem;
    max-width: 300px;
}

/* ============================================================
   Markdown Content Styles
   ============================================================ */

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

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    line-height: 1.3;
}

.markdown-body h1 { font-size: 2rem; }
.markdown-body h2 { font-size: 1.5rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border-color); }
.markdown-body h3 { font-size: 1.25rem; }
.markdown-body h4 { font-size: 1.1rem; }

.markdown-body p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.markdown-body a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.markdown-body a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

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

.markdown-body ul,
.markdown-body ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.markdown-body li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.markdown-body li::marker {
    color: var(--accent-primary);
}

.markdown-body code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-tertiary);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    color: var(--accent-secondary);
}

.markdown-body pre {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.markdown-body pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.markdown-body blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

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

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

.markdown-body tr:hover td {
    background: var(--bg-tertiary);
}

.markdown-body img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1rem 0;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

.markdown-body details {
    background: var(--bg-tertiary);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.markdown-body summary {
    cursor: pointer;
    color: var(--accent-primary);
    font-weight: 500;
}

.markdown-body hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 2rem 0;
}

.markdown-body .admonition {
    background: var(--bg-tertiary);
    border-left: 4px solid var(--accent-primary);
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 0 6px 6px 0;
}

.markdown-body .admonition-title {
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.footer-logo .logo-icon {
    width: 28px;
    height: 28px;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 4rem;
    flex-wrap: wrap;
}

.footer-column {
    min-width: 200px;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.footer-nav {
    list-style: none;
}

.footer-nav li {
    margin-bottom: 0.5rem;
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        padding: 0.5rem 0;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 1.5rem;
    }
    
    .hero-decoration {
        display: none;
    }
    
    .content-header {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .content-display {
        padding: 1rem;
    }
}