/* ===================================
   CSS Variables & Reset
   =================================== */

:root {
    /* Colors - Light Mode */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-secondary: #8b5cf6;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    --color-bg: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    --color-surface: #ffffff;
    --color-border: #e5e7eb;
    
    --color-text: #111827;
    --color-text-secondary: #6b7280;
    --color-text-tertiary: #9ca3af;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-text: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, '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;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-surface: #1e293b;
    --color-border: #334155;
    
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.6), 0 8px 10px -6px rgb(0 0 0 / 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

/* ===================================
   Layout
   =================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

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

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.logo svg {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.theme-toggle .moon-icon {
    display: none;
}

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

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

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

.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(to bottom, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: 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-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

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

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

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

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

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.stat {
    text-align: left;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

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

/* Terminal */
.terminal-window {
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.terminal-header {
    background-color: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

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

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

.terminal-button.red { background-color: #ef4444; }
.terminal-button.yellow { background-color: #f59e0b; }
.terminal-button.green { background-color: #10b981; }

.terminal-title {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.terminal-body {
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    min-height: 200px;
}

.terminal-line {
    margin-bottom: var(--spacing-sm);
    animation: fadeIn 0.5s ease-in-out;
}

.terminal-line:nth-child(1) { animation-delay: 0.5s; }
.terminal-line:nth-child(2) { animation-delay: 1s; }
.terminal-line:nth-child(3) { animation-delay: 1.5s; }
.terminal-line:nth-child(4) { animation-delay: 2s; }
.terminal-line:nth-child(5) { animation-delay: 2.5s; }

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

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

.terminal-command {
    color: var(--color-text);
}

.terminal-output {
    color: var(--color-text-secondary);
}

.terminal-success {
    color: var(--color-success);
}

.terminal-cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background-color: var(--color-primary);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* ===================================
   Features Section
   =================================== */

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

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

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

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

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-secondary);
}

/* ===================================
   Services Section
   =================================== */

.services {
    background-color: var(--color-bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.service-info {
    display: flex;
    gap: var(--spacing-md);
}

.service-icon-wrapper {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.service-name {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.service-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

.status-healthy {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
}

.service-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
}

.service-stat {
    display: flex;
    flex-direction: column;
}

.service-stat .stat-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.service-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.service-link:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateX(4px);
}

/* ===================================
   Documentation Section
   =================================== */

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

.docs-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
}

.docs-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.doc-step {
    display: flex;
    gap: var(--spacing-lg);
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
}

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

.code-block {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text);
    white-space: pre;
    display: block;
    line-height: 1.6;
}

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

.docs-card {
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.docs-card h3 {
    margin-bottom: var(--spacing-md);
}

.docs-links {
    list-style: none;
}

.docs-links li {
    margin-bottom: var(--spacing-sm);
}

.docs-links a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    display: block;
    padding: var(--spacing-sm) 0;
}

.docs-links a:hover {
    color: var(--color-primary);
}

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

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

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo svg {
    color: var(--color-primary);
}

.footer-description {
    color: var(--color-text-secondary);
    max-width: 300px;
}

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

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

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

.footer-links a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

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

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        order: -1;
    }
    
    .docs-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-links {
        gap: var(--spacing-md);
    }
    
    .nav-links a {
        font-size: 0.875rem;
    }
    
    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}