#ai-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(255,255,255,0.1), rgba(255,255,255,0.3));
    backdrop-filter: blur(10px);
    animation: float 20s infinite linear;
}

.shape-1 { width: 80px; height: 80px; animation-duration: 25s; }
.shape-2 { width: 120px; height: 120px; animation-duration: 30s; }
.shape-3 { width: 60px; height: 60px; animation-duration: 20s; }

.floating-triangle {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
    border-bottom: 52px solid rgba(255,255,255,0.2);
    animation: triangleFloat 18s infinite linear;
}

.floating-square {
    position: absolute;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.15);
    transform: rotate(45deg);
    animation: squareFloat 22s infinite linear;
}

@keyframes float {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

@keyframes triangleFloat {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100px) rotate(180deg); opacity: 0; }
}

@keyframes squareFloat {
    0% { transform: translateY(100vh) rotate(45deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100px) rotate(405deg); opacity: 0; }
}

.neural-node {
    position: absolute;
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255,255,255,0.8);
    animation: nodePulse 3s infinite;
}

.neural-connection {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    box-shadow: 0 0 5px rgba(255,255,255,0.6);
    animation: connectionPulse 2s infinite;
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.8); opacity: 1; }
}

@keyframes connectionPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}