/* Modern DevTrack Wiki Styles with Dark Mode */

/* ===== CSS VARIABLES ===== */
:root {
    /* Light Mode Colors */
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;

    --accent: #8b5cf6;
    --accent-dark: #7c3aed;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --background: #ffffff;
    --surface: var(--gray-50);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-500);
    --border-color: var(--gray-200);
    --code-bg: #1a1d29;

    --sidebar-bg: var(--gray-900);
    --sidebar-text: var(--gray-300);
    --sidebar-text-active: #ffffff;
    --sidebar-hover: var(--gray-800);
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', monospace;

    --transition-speed: 0.3s;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --background: #0f1419;
    --surface: #1a1f2e;
    --text-primary: #e5e7eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: #2d3748;

    --gray-50: #1f2937;
    --gray-100: #374151;
    --gray-200: #4b5563;

    --sidebar-bg: #0a0e14;
    --sidebar-hover: #1a1f2e;

    --code-bg: #0d1117;
}

/* ===== BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
    display: flex;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background var(--transition-speed), color var(--transition-speed);
}

/* ===== SIDEBAR TOGGLE BUTTON ===== */
.sidebar-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: var(--primary);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.2s ease;
}

.sidebar-toggle:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.sidebar-toggle i {
    font-size: 1.25rem;
}

/* Show toggle button ONLY on mobile when sidebar is collapsed */
body.sidebar-collapsed .sidebar-toggle {
    display: none;
}

@media (max-width: 768px) {
    .sidebar-toggle {
        display: flex;
    }
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: var(--spacing-xl);
    overflow-y: auto;
    overflow-x: hidden;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    border-right: 1px solid var(--border-color);
    transition: width var(--transition-speed), transform var(--transition-speed);
    z-index: 1000;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--gray-700);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}

/* Collapsed Sidebar */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
    padding: var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

body.sidebar-collapsed .sidebar .logo h1,
body.sidebar-collapsed .sidebar .tagline,
body.sidebar-collapsed .sidebar .version-badge,
body.sidebar-collapsed .sidebar .nav-text,
body.sidebar-collapsed .sidebar .nav-section-title,
body.sidebar-collapsed .sidebar .sidebar-footer {
    display: none;
}

body.sidebar-collapsed .sidebar-header {
    width: 100%;
    margin-bottom: var(--spacing-lg);
}

body.sidebar-collapsed .logo {
    margin-bottom: var(--spacing-md);
}

body.sidebar-collapsed .sidebar .logo-icon {
    margin: 0 auto;
    font-size: 2rem;
}

body.sidebar-collapsed .sidebar .nav-item {
    justify-content: center;
    padding: 0.625rem;
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-xs);
    border-radius: var(--radius-md);
}

body.sidebar-collapsed .nav-icon {
    margin: 0;
    font-size: 1.125rem;
}

body.sidebar-collapsed .sidebar .sidebar-controls {
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    width: 100%;
    align-items: center;
}

body.sidebar-collapsed .control-btn {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
}

body.sidebar-collapsed .nav-menu {
    width: 100%;
    align-items: center;
}

body.sidebar-collapsed .nav-section {
    width: 100%;
    align-items: center;
}

/* ===== SIDEBAR HEADER ===== */
.sidebar-header {
    margin-bottom: var(--spacing-xl);
}

.logo {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.logo-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    transition: all var(--transition-speed);
}

.logo-icon i {
    display: block;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-xs);
    transition: opacity var(--transition-speed);
}

.tagline {
    font-size: 0.8125rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-md);
    transition: opacity var(--transition-speed);
}

.version-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: opacity var(--transition-speed);
}

/* ===== SIDEBAR CONTROLS ===== */
.sidebar-controls {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
    transition: all var(--transition-speed);
}

.control-btn {
    background: transparent;
    border: 1px solid var(--gray-700);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.control-btn:hover {
    background: var(--gray-800);
    border-color: var(--gray-600);
    color: white;
    transform: translateY(-2px);
}

/* Collapsed state: Make controls look like nav icons */
body.sidebar-collapsed .control-btn {
    border: none;
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
    border-radius: var(--radius-md);
}

body.sidebar-collapsed .control-btn:hover {
    background: var(--sidebar-hover);
    transform: none;
}

.control-btn i {
    font-size: 0.875rem;
}

/* ===== SIDEBAR COLLAPSE ICON ROTATION ===== */
.sidebar-collapse i {
    transition: transform var(--transition-speed);
}

body.sidebar-collapsed .sidebar-collapse i {
    transform: rotate(180deg);
}



/* ===== NAVIGATION ===== */
.nav-menu {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-section-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-500);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    transition: opacity var(--transition-speed);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0.75rem var(--spacing-md);
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: var(--sidebar-text-active);
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-icon {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
    flex-shrink: 0;
}

.nav-text {
    transition: opacity var(--transition-speed);
}

.privacy-link {
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-lg);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
    transition: opacity var(--transition-speed);
}

.platform-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.platform-badge {
    font-size: 0.6875rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gray-800);
    border-radius: var(--radius-sm);
    color: var(--gray-400);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    transition: margin-left var(--transition-speed);
}

body.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-2xl);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== PAGE HEADER ===== */
.page-header {
    margin-bottom: var(--spacing-2xl);
}

.page-header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== TYPOGRAPHY ===== */
h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

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

ul,
ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

li {
    margin: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

.check-list {
    list-style: none;
    padding-left: 0;
}

.check-list li {
    padding-left: var(--spacing-xl);
    position: relative;
}

.check-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--success);
}

/* ===== CODE BLOCKS ===== */
.code-block {
    background: var(--code-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
}

.code-header span {
    font-size: 0.8125rem;
    color: #9ca3af;
    font-weight: 600;
}

.copy-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: var(--primary-dark);
}

.code-block pre {
    padding: var(--spacing-lg);
    overflow-x: auto;
    margin: 0;
    background: transparent;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
    color: #e2e8f0;
    background: transparent;
    display: block;
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--surface);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-weight: 500;
    border: 1px solid var(--border-color);
}

[data-theme="dark"] code {
    background: var(--gray-800);
    color: var(--primary-light);
}

/* ===== CARDS & COMPONENTS ===== */
.component-detail,
.service-card,
.ai-feature-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    transition: all 0.3s ease;
}

.component-detail:hover,
.service-card:hover,
.ai-feature-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

/* ===== NOTE BOXES ===== */
.note-box {
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
    background: var(--surface);
}

.note-box.info {
    border-color: var(--info);
}

.note-box.success {
    border-color: var(--success);
}

.note-box.warning {
    border-color: var(--warning);
}

.note-box strong {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* ===== TROUBLESHOOTING ===== */
.troubleshoot-item {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--danger);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.troubleshoot-item h3 {
    margin-top: 0;
}

/* ===== COMMAND REFERENCE ===== */
.command-reference {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.cmd-item {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.cmd-item:last-child {
    border-bottom: none;
}

.cmd-syntax {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

.cmd-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== TABLES ===== */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    background: var(--surface);
    border-radius: var(--radius-md);
    overflow: hidden;
}

thead {
    background: var(--gray-100);
}

[data-theme="dark"] thead {
    background: var(--gray-800);
}

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

th {
    font-weight: 600;
    color: var(--text-primary);
}

td {
    color: var(--text-secondary);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    body.sidebar-open .sidebar {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: flex;
    }

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

    .content-wrapper {
        padding: var(--spacing-lg);
    }

    .page-header h1 {
        font-size: 1.75rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

/* ===== LANDING PAGE STYLES ===== */

/* Hero Section */
.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
    min-height: 600px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    width: fit-content;
    box-shadow: var(--shadow-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-primary);
    margin: 0;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 90%;
}

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* Terminal Window */
.hero-visual {
    position: relative;
}

.terminal-window {
    background: #1a1d29;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid #2d3142;
}

.terminal-header {
    background: #0f111a;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid #2d3142;
}

.terminal-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.terminal-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-btn.red {
    background: #ff5f56;
}

.terminal-btn.yellow {
    background: #ffbd2e;
}

.terminal-btn.green {
    background: #27c93f;
}

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: #9ca3af;
}

.terminal-body {
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
}

.terminal-line {
    margin-bottom: var(--spacing-sm);
    color: #e2e8f0;
}

.terminal-prompt {
    color: #10b981;
    margin-right: var(--spacing-sm);
}

.terminal-command {
    color: #60a5fa;
}

.terminal-output {
    color: #9ca3af;
}

.terminal-highlight {
    background: rgba(59, 130, 246, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

.terminal-prompt-text {
    color: #f59e0b;
}

.terminal-input {
    color: #10b981;
}

.terminal-success {
    color: #10b981;
}

.terminal-cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: #60a5fa;
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Problem/Solution Section */
.problem-solution-section {
    padding: var(--spacing-2xl) 0;
    background: var(--surface);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-2xl);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .comparison-card {
    background: var(--gray-800);
}

.comparison-card.problem {
    border: 2px solid var(--danger);
}

.comparison-card.solution {
    border: 2px solid var(--success);
}

.comparison-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.comparison-card.problem .comparison-icon {
    color: var(--danger);
}

.comparison-card.solution .comparison-icon {
    color: var(--success);
}

.comparison-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

.comparison-list {
    list-style: none;
    padding: 0;
}

.comparison-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.comparison-list i {
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.comparison-arrow {
    font-size: 2rem;
    color: var(--primary);
}

/* Features Section */
.features-section {
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card-modern {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all 0.3s ease;
}

.feature-card-modern:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.feature-icon-wrapper i {
    font-size: 1.75rem;
    color: white;
}

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

.feature-card-modern p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.feature-tech {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tech-badge {
    background: var(--primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Tech Stack Section */
.tech-stack-section {
    padding: var(--spacing-2xl) 0;
    background: var(--surface);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-2xl);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

[data-theme="dark"] .tech-item {
    background: var(--gray-800);
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tech-item i {
    font-size: 2.5rem;
    color: var(--primary);
}

.tech-item span {
    font-weight: 600;
    color: var(--text-primary);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    color: white;
    margin: var(--spacing-2xl) 0;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    color: white;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.cta-buttons .btn-primary {
    background: white;
    color: var(--primary);
}

.cta-buttons .btn-primary:hover {
    background: var(--gray-100);
}

.cta-buttons .btn-secondary {
    border-color: white;
    color: white;
}

.cta-buttons .btn-secondary:hover {
    background: white;
    color: var(--primary);
}

.cta-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    opacity: 0.9;
}

/* Responsive Design for Landing Page */
@media (max-width: 1024px) {
    .hero-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .comparison-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

    .cta-content h2 {
        font-size: 1.75rem;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

/* ===== PREREQUISITE CARDS ENHANCEMENT ===== */
.prereq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.prereq-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.prereq-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.prereq-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.prereq-icon i {
    font-size: 2.5rem;
    color: white;
}

.prereq-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.prereq-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

/* ===== PLATFORM TABS ENHANCEMENT ===== */
.platform-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.platform-tab {
    padding: var(--spacing-md) var(--spacing-xl);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.platform-tab:hover {
    color: var(--primary);
    background: var(--surface);
}

.platform-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: var(--surface);
}

.platform-tab i {
    font-size: 1.125rem;
}

.platform-content {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.platform-content.active {
    display: block;
}

/* ===== ENHANCED BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn i {
    font-size: 0.875rem;
}

/* ===== SIDEBAR PLATFORM BADGES ===== */
.platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.6875rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gray-800);
    border-radius: var(--radius-sm);
    color: var(--gray-400);
}

.platform-badge i {
    font-size: 0.75rem;
}

/* ===== FIX COLLAPSED SIDEBAR LAYOUT ===== */

/* Better spacing for collapsed sidebar */
body.sidebar-collapsed .sidebar {
    padding: var(--spacing-md);
}

/* Stack controls vertically when collapsed */
body.sidebar-collapsed .sidebar-controls {
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* Center logo icon when collapsed */
body.sidebar-collapsed .logo {
    margin-bottom: var(--spacing-md);
}

body.sidebar-collapsed .logo-icon {
    margin: 0 auto var(--spacing-sm);
}

/* Adjust nav items for collapsed state */
body.sidebar-collapsed .nav-item {
    padding: var(--spacing-md) var(--spacing-sm);
    justify-content: center;
}

body.sidebar-collapsed .nav-icon {
    margin: 0;
}

/* Hide section titles when collapsed */
body.sidebar-collapsed .nav-section-title {
    display: none;
}

/* Adjust nav section spacing */
body.sidebar-collapsed .nav-section {
    gap: var(--spacing-xs);
}

/* Better control button sizing when collapsed */
body.sidebar-collapsed .control-btn {
    width: 40px;
    height: 40px;
}

/* Ensure sidebar header doesn't overflow */
.sidebar-header {
    overflow: hidden;
}

/* Smooth transition for all collapsible elements */
.logo h1,
.logo .tagline,
.version-badge,
.nav-text,
.nav-section-title,
.sidebar-footer {
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
}

/* ===== ARCHITECTURE FLOW DIAGRAM ===== */
.architecture-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.arch-flow-card {
    background: var(--surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    width: 100%;
    max-width: 500px;
    transition: all 0.3s ease;
}

.arch-flow-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.arch-flow-card.user-layer {
    border-color: var(--primary);
}

.arch-flow-card.container-layer {
    border-color: #2496ed;
}

.arch-flow-card.app-layer {
    border-color: var(--accent);
}

.arch-flow-card.storage-layer {
    border-color: var(--success);
}

.arch-flow-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arch-flow-card.user-layer .arch-flow-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.arch-flow-card.container-layer .arch-flow-icon {
    background: linear-gradient(135deg, #2496ed, #1a73e8);
}

.arch-flow-card.app-layer .arch-flow-icon {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

.arch-flow-card.storage-layer .arch-flow-icon {
    background: linear-gradient(135deg, var(--success), #059669);
}

.arch-flow-icon i {
    font-size: 2.5rem;
    color: white;
}

.arch-flow-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.arch-flow-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.arch-tech-tags {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.tech-tag {
    background: var(--primary);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.arch-flow-arrow {
    font-size: 2rem;
    color: var(--primary);
}

.arch-flow-arrow i {
    font-size: 2rem;
}

/* ===== COMPONENT GRID ===== */
.component-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.component-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.component-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.component-header {
    background: linear-gradient(135deg, var(--gray-800), var(--gray-900));
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

[data-theme="dark"] .component-header {
    background: linear-gradient(135deg, var(--gray-700), var(--gray-800));
}

.component-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.component-icon.docker {
    background: linear-gradient(135deg, #2496ed, #1a73e8);
}

.component-icon.go {
    background: linear-gradient(135deg, #00add8, #007d9c);
}

.component-icon.python {
    background: linear-gradient(135deg, #3776ab, #ffd43b);
}

.component-icon.storage {
    background: linear-gradient(135deg, var(--success), #059669);
}

.component-icon i {
    font-size: 1.75rem;
    color: white;
}

.component-header h3 {
    color: white;
    margin: 0;
    font-size: 1.25rem;
}

.component-body {
    padding: var(--spacing-xl);
}

.component-body h4 {
    font-size: 1rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.component-body h4:first-child {
    margin-top: 0;
}

.component-body ul {
    margin-bottom: var(--spacing-md);
}

.component-body li {
    margin-bottom: var(--spacing-sm);
}

/* ===== BENEFITS SECTION ===== */
.benefits-section {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: var(--surface);
    border-radius: var(--radius-xl);
}

.benefits-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.benefit-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all 0.3s ease;
}

[data-theme="dark"] .benefit-card {
    background: var(--gray-800);
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon i {
    font-size: 1.5rem;
    color: white;
}

.benefit-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .architecture-flow {
        padding: var(--spacing-lg) 0;
    }

    .arch-flow-card {
        max-width: 100%;
    }

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

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

/* ===== SIDEBAR COLLAPSE ICON ROTATION ===== */
.sidebar-collapse i {
    transition: transform var(--transition-speed);
}

body.sidebar-collapsed .sidebar-collapse i {
    transform: rotate(180deg);
}

/* ===== FIX MISSING SIDEBAR HEADER ===== */
body.sidebar-collapsed .sidebar-header {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: var(--spacing-lg);
    opacity: 1 !important;
    visibility: visible !important;
    height: auto !important;
}

body.sidebar-collapsed .logo {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-md);
    opacity: 1 !important;
    visibility: visible !important;
}

body.sidebar-collapsed .logo-icon {
    display: block !important;
    font-size: 2rem;
    margin: 0 auto;
    opacity: 1 !important;
    visibility: visible !important;
}

body.sidebar-collapsed .sidebar-controls {
    display: flex !important;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    align-items: center;
    opacity: 1 !important;
    visibility: visible !important;
}

body.sidebar-collapsed .control-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    opacity: 1 !important;
    visibility: visible !important;
}

/* ===== FIX HEADER SQUASHING ON ZOOM ===== */
/* Prevent header elements from shrinking when vertical space is tight */
body.sidebar-collapsed .sidebar-header,
body.sidebar-collapsed .logo,
body.sidebar-collapsed .sidebar-controls,
body.sidebar-collapsed .control-btn,
body.sidebar-collapsed .logo-icon {
    flex-shrink: 0 !important;
}

/* Ensure sidebar allows scrolling when content overflows */
body.sidebar-collapsed .sidebar {
    overflow-y: auto !important;
    height: 100vh;
}

/* Ensure nav items don't get squashed either */
body.sidebar-collapsed .nav-item {
    flex-shrink: 0;
}