/* CSS Variables for Theming */
:root {
    /* Primary Colors */
    --primary-color: #E4FF1A;
    --secondary-color: #ffffff;
    --accent-color: #3423A6;
    
    /* Neutral Colors */
    --text-color: #0f0f0f;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-dark: #f9fafb;
    --border-color: #e5e7eb;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 20px;
    --font-size-xl: 32px;
    --font-size-2xl: 48px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index */
    --z-navbar: 1000;
    --z-overlay: 100;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

h1 {
    font-size: var(--font-size-2xl);
}

h2 {
    font-size: var(--font-size-xl);
}

h3 {
    font-size: var(--font-size-lg);
}

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

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-normal);
}

a:hover {
    color: #D4EF0A;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-navbar);
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-md);
}

.navbar-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo {
    height: 36px;
    width: auto;
}

.navbar-wrapper {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    border-radius: 50px;
    padding: 0.875rem var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.navbar-menu a {
    color: var(--text-color);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    position: relative;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.navbar-menu a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.lang-btn {
    padding: 0.5rem 0.75rem;
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

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

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.2) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(32px, 8vw, 64px);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(18px, 4vw, 28px);
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

/* CTA Button */
.cta-button {
    display: inline-block;
    padding: 0.75rem 2rem;
    background-color: var(--accent-color);
    color: var(--secondary-color) !important;
    font-weight: 600;
    letter-spacing: 0.5px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 14px;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.cta-button:hover {
    background-color: #2563eb;
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

/* Solutions Section */
.solutions {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-dark);
}

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

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

.solution-card {
    padding: var(--spacing-lg);
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.solution-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 12px 24px rgba(59, 130, 246, 0.12);
    transform: translateY(-8px);
}

.solution-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.solution-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), rgba(59, 130, 246, 0));
    border-radius: 2px;
}

.solution-card p {
    color: var(--text-light);
}

/* Page Content */
.page-content {
    width: 100%;
}

/* Page source type classes */
.page-html {
    /* Styles for HTML source pages */
}

.page-markdown {
    /* Styles for Markdown source pages */
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.page-error {
    /* Styles for error pages */
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.page-content .container {
    max-width: 800px;
    margin: 0 auto;
}

.page-content h1 {
    margin-bottom: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.page-content h2 {
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.page-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.page-content ul,
.page-content ol {
    margin-left: 2rem;
    margin-bottom: var(--spacing-md);
}

.page-content li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.page-content a {
    color: var(--accent-color);
    text-decoration: underline;
}

.page-content a:hover {
    color: #2563eb;
}

/* Loading and Error States */
.loading,
.error {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.loading {
    color: var(--text-light);
    font-size: var(--font-size-lg);
}

.error {
    color: var(--text-color);
}

.error h2 {
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.error p {
    margin-bottom: var(--spacing-lg);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a1a2e 100%);
    color: var(--secondary-color);
    text-align: center;
}

.contact h2 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-lg);
}

.contact .cta-button {
    background-color: var(--accent-color);
    color: var(--secondary-color);
    margin-top: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.contact .cta-button:hover {
    background-color: #2563eb;
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.5);
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    background-color: #0a0a0a;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    margin: 0;
    color: inherit;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-content {
        padding: var(--spacing-lg) 0;
    }

    .page-content .container {
        padding: 0 var(--spacing-md);
    }

    .navbar-wrapper {
        padding: 0.75rem 1.5rem;
    }
    
    .navbar-menu {
        gap: var(--spacing-md);
    }
    
    .navbar-menu a {
        font-size: 12px;
    }
    
    .logo {
        height: 30px;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
}

@media (max-width: 640px) {
    .navbar {
        top: 12px;
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .navbar-wrapper {
        padding: 0.75rem 1rem;
        gap: var(--spacing-md);
    }
    
    .navbar-menu {
        gap: 1rem;
    }
    
    .navbar-menu a {
        font-size: 11px;
    }
    
    .language-switch {
        gap: 0.25rem;
    }

    .lang-btn {
        padding: 0.4rem 0.6rem;
        font-size: 11px;
    }
    
    .logo {
        height: 28px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .cta-button {
        padding: 0.75rem 1.5rem;
        font-size: 12px;
    }
}