/**
 * Google VPS MCP Documentation Styles
 * Professional black and white theme with day/night mode
 */

/* CSS Variables */
:root {
    /* Light Theme (Default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --accent-color: #000000;
    --accent-hover: #333333;
    --code-bg: #f6f8fa;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
    --info-color: #17a2b8;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-primary: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --border-color: #333333;
    --accent-color: #ffffff;
    --accent-hover: #cccccc;
    --code-bg: #1e1e1e;
    --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);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

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

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

a:hover {
    opacity: 0.7;
}

code {
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
    background-color: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-primary);
}

pre {
    background-color: var(--code-bg);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

pre code {
    background: none;
    padding: 0;
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 48px;
    height: 48px;
}

.logo-text h1 {
    font-size: 1.5rem;
    margin: 0;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.lang-btn:hover {
    background: var(--bg-tertiary);
}

.lang-btn.active {
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
}

.flag {
    font-size: 1.25rem;
}

.lang-text {
    font-size: 0.75rem;
    font-weight: 600;
}

/* Theme Toggle */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.moon-icon {
    display: none;
}

[data-theme="dark"] .sun-icon {
    display: none;
}

[data-theme="dark"] .moon-icon {
    display: block;
}

/* Main Container */
.main-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 100px;
    min-height: calc(100vh - 200px);
}

/* Sidebar */
.sidebar {
    width: 280px;
    position: sticky;
    top: 100px;
    height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 2rem;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.sidebar-nav {
    position: relative;
}

.nav-section {
    margin-bottom: 2rem;
}

.nav-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

.nav-section ul {
    list-style: none;
}

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

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    font-size: 0.9375rem;
}

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

.nav-link.active {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Content */
.content {
    flex: 1;
    padding: 2rem 3rem;
    max-width: 100%;
}

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

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

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

/* Intro Card */
.intro-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
    border: 1px solid var(--border-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.feature-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
}

.feature-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.875rem;
    margin: 0;
}

/* CTA Section */
.cta-section {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    opacity: 1;
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    opacity: 1;
}

.github-icon {
    width: 20px;
    height: 20px;
}

/* Installation Steps */
.installation-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-number {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 50%;
    background: var(--accent-color);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h3 {
    margin-bottom: 0.5rem;
}

.requirements-list {
    list-style: disc;
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.requirements-list li {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

/* Code Block with Copy */
.code-block-wrapper {
    position: relative;
    margin: 1rem 0;
}

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

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

.copy-btn:hover {
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
}

.copy-btn.copied {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.code-block {
    margin: 0;
}

/* Config Cards */
.config-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
}

.config-card h3,
.config-card h4 {
    margin-bottom: 1rem;
}

/* Quick Start */
.quickstart-guide {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.quickstart-step {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.quickstart-step h3 {
    margin-bottom: 0.5rem;
}

/* Tables */
.params-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.875rem;
}

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

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

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

.params-table code {
    font-size: 0.8125rem;
}

/* Tool Docs */
.tool-docs {
    margin-top: 1.5rem;
}

.tool-description {
    margin-bottom: 1.5rem;
}

.tool-params {
    margin: 1.5rem 0;
}

.tool-example {
    margin-top: 1.5rem;
}

/* Integration */
.integration-guide {
    margin-top: 1.5rem;
}

.integration-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.integration-step {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Security Features */
.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.security-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.security-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.security-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.security-card p {
    font-size: 0.875rem;
    margin: 0;
}

/* Troubleshooting */
.troubleshooting-guide {
    margin-top: 1.5rem;
}

.troubleshoot-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--warning-color);
}

.troubleshoot-item h3 {
    margin-bottom: 0.5rem;
}

.troubleshoot-item ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.troubleshoot-item li {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

/* FAQ */
.faq-list {
    margin-top: 1.5rem;
}

.faq-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    border: 1px solid var(--border-color);
}

.faq-item h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.faq-item p {
    margin: 0;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-section p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.author-links,
.support-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.author-link,
.support-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.author-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    opacity: 1;
}

.social-icon {
    width: 18px;
    height: 18px;
}

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

.support-btn:hover {
    opacity: 1;
}

.support-btn.paypal:hover {
    background: #0070ba;
    color: white;
    border-color: #0070ba;
}

.support-btn.ko-fi:hover {
    background: #FF5E5B;
    color: white;
    border-color: #FF5E5B;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0.25rem 0;
}

.version {
    font-size: 0.75rem !important;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: relative;
        top: 0;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .content {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }
    
    .logo-text h1 {
        font-size: 1.25rem;
    }
    
    .tagline {
        display: none;
    }
    
    .lang-text {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .sidebar {
        display: none;
    }
    
    .sidebar.open {
        display: block;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        height: auto;
        max-height: calc(100vh - 80px);
        z-index: 999;
        box-shadow: var(--shadow-lg);
    }
    
    .content {
        padding: 1rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .security-features {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .author-links,
    .support-links {
        align-items: center;
    }
}

/* Print Styles */
@media print {
    .header,
    .sidebar,
    .footer,
    .copy-btn,
    .theme-toggle,
    .language-switcher {
        display: none !important;
    }
    
    .main-container {
        display: block;
        padding-top: 0;
    }
    
    .content {
        padding: 0;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* AI Integration Styles */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.ai-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ai-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.ai-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.ai-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.ai-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.ai-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.ai-status.available {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

/* Setup Instructions */
.setup-instructions {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.setup-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.setup-step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.setup-number {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 50%;
    background: var(--accent-color);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.setup-content h4 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.setup-content p {
    color: var(--text-secondary);
    margin: 0;
}