:root {
    /* CyberSphere Color Palette */
    --color-black: #050505;
    --color-dark-navy: #0a0f1a;
    --color-cyber-green: #00FF66;
    --color-electric-blue: #00f0ff;
    --color-glass-white: rgba(255, 255, 255, 0.05);
    --color-dark-purple: #1a0b2e;
    --color-grey-accent: #333333;
    
    /* Text Colors */
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;

    /* Fonts */
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Glassmorphism Variables */
    --glass-bg: rgba(10, 15, 26, 0.6);
    --glass-border: rgba(0, 240, 255, 0.2);
    --glass-blur: blur(12px);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

body {
    background-color: var(--color-black);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow-x: hidden;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

p {
    line-height: 1.6;
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: var(--color-electric-blue);
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

a:hover {
    color: var(--color-cyber-green);
    text-shadow: 0 0 8px var(--color-cyber-green);
}

/* Matrix Background Canvas */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    opacity: 0.15; /* Low opacity per PRD */
    pointer-events: none;
}

/* Base Utility Classes */
.cyber-text {
    font-family: var(--font-mono);
    color: var(--color-cyber-green);
}

.neon-text {
    color: #fff;
    text-shadow: 
        0 0 5px #fff,
        0 0 10px #fff,
        0 0 20px var(--color-electric-blue),
        0 0 40px var(--color-electric-blue);
}

.glow-text {
    text-shadow: 0 0 10px var(--color-cyber-green);
}

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

/* Responsive Typography */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem !important; }
    h2 { font-size: 1.8rem !important; }
    h3 { font-size: 1.5rem !important; }
    h4 { font-size: 1.2rem !important; }
    
    p { font-size: 0.95rem; line-height: 1.5; }
    
    .hero-text-container {
        text-align: center !important;
    }
    .hero-text-container h1 {
        text-align: center !important;
    }
    .typing-container, .hero-actions, .hero-socials {
        justify-content: center !important;
    }
}