:root {
    --primary-blue: #0096ff;
    --primary-blue-dark: #0066cc;
    --primary-blue-darker: #004499;
    --primary-blue-light: #66b3ff;
    --primary-blue-pale: #b3d9ff;
    
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(10, 10, 26, 0.6);
    --bg-card-hover: rgba(10, 10, 26, 0.8);
    
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-tertiary: #999999;
    
    --border-subtle: rgba(0, 150, 255, 0.1);
    --border-normal: rgba(0, 150, 255, 0.2);
    --border-strong: rgba(0, 150, 255, 0.3);
    --border-accent: #0096ff;
    
    --status-low: #4d94ff;
    --status-medium: #0066cc;
    --status-high: #003d7a;
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 4rem;
    
    --text-xs: 0.7rem;
    --text-sm: 0.8rem;
    --text-base: 0.875rem;
    --text-lg: 1rem;
    --text-xl: 1.1rem;
    --text-2xl: 1.3rem;
    --text-3xl: 1.6rem;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 15px;
    --radius-xl: 20px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    background: var(--bg-primary);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: var(--text-base);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 100, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 150, 255, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-sm);
}

p {
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

strong {
    color: var(--primary-blue);
    font-weight: 600;
}

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

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

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-normal);
    padding: 0.875rem var(--space-lg);
    z-index: 1000;
    height: 70px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.nav-links a:hover {
    background: rgba(0, 150, 255, 0.1);
    color: var(--primary-blue-light);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-normal);
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
    z-index: 999;
    padding: var(--space-sm) 0;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu a {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--space-sm) var(--space-lg);
    font-weight: 500;
    font-size: var(--text-base);
    transition: all var(--transition-normal);
    border-left: 3px solid transparent;
}

.mobile-menu a:hover {
    background: rgba(0, 150, 255, 0.1);
    border-left-color: var(--primary-blue);
}

.cta-primary,
.cta-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

.btn,
.cta-primary {
    background: var(--primary-blue);
    color: var(--text-primary);
    border: 2px solid var(--primary-blue);
}

.btn:hover,
.cta-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-1px);
}

.cta-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.cta-secondary:hover {
    background: rgba(0, 150, 255, 0.1);
    border-color: var(--primary-blue-light);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-normal);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

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

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

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

@media (max-width: 768px) {
    :root {
        --text-base: 0.9rem;
        --text-lg: 1rem;
        --text-xl: 1.2rem;
        --text-2xl: 1.4rem;
        --text-3xl: 1.8rem;
    }
    
    nav {
        padding: 0.5rem var(--space-sm);
        height: 60px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .mobile-menu {
        top: 60px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}