/* Animated background grid */
body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: 
        radial-gradient(circle at 50% 0%, #111 0%, var(--bg-dark) 80%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 50px,
            rgba(0, 255, 255, 0.05) 50px,
            rgba(0, 255, 255, 0.05) 51px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 50px,
            rgba(0, 255, 255, 0.05) 50px,
            rgba(0, 255, 255, 0.05) 51px
        );
    min-height: 100vh;
    color: #e0e0e0;
    overflow-x: hidden;
    position: relative;
}

/* Animated scanning line */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    animation: scan 4s linear infinite;
    pointer-events: none;
    z-index: 100;
}

@keyframes scan {
    0% {
        transform: translateY(-100%);
    }
    100% {
        transform: translateY(100vh);
    }
}

/* Subtle pulse animation for background */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(
        ellipse at center,
        rgba(0, 255, 255, 0.03) 0%,
        transparent 40%
    );
    animation: pulse 6s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

/* Animation for elements appearing on scroll (if JS is added later) */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}