/* Enhanced Matrix Background Effects */
.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    opacity: 0.18;
    overflow: hidden;
}

.matrix-column {
    position: absolute;
    top: -150px;
    font-family: 'Courier New', 'Consolas', monospace;
    font-size: 13px;
    font-weight: bold;
    color: #00ff41;
    text-shadow: 
        0 0 5px #00ff41,
        0 0 10px #00ff4180,
        0 0 15px #00ff4160;
    white-space: nowrap;
    line-height: 1.2;
    animation: matrixFall linear infinite;
    letter-spacing: 1px;
}

/* Enhanced falling animation with glow effects */
@keyframes matrixFall {
    0% {
        transform: translateY(-150px) rotateX(0deg);
        opacity: 0;
        filter: blur(2px);
    }
    5% {
        opacity: 1;
        filter: blur(0px);
    }
    85% {
        opacity: 1;
        filter: blur(0px);
    }
    95% {
        opacity: 0.3;
        filter: blur(1px);
    }
    100% {
        transform: translateY(calc(100vh + 150px)) rotateX(360deg);
        opacity: 0;
        filter: blur(3px);
    }
}

/* Different column types with varying colors and effects */
.matrix-column.binary {
    color: #00ff41;
    text-shadow: 
        0 0 5px #00ff41,
        0 0 10px #00ff4180,
        0 0 20px #00ff4140;
}

.matrix-column.hex {
    color: #4299e1;
    text-shadow: 
        0 0 5px #4299e1,
        0 0 10px #4299e180,
        0 0 20px #4299e140;
}

.matrix-column.crypto {
    color: #ed8936;
    text-shadow: 
        0 0 5px #ed8936,
        0 0 10px #ed893680,
        0 0 20px #ed893640;
    font-size: 14px;
}

.matrix-column.security {
    color: #e53e3e;
    text-shadow: 
        0 0 5px #e53e3e,
        0 0 10px #e53e3e80,
        0 0 20px #e53e3e40;
    font-size: 16px;
}

.matrix-column.special {
    color: #9f7aea;
    text-shadow: 
        0 0 5px #9f7aea,
        0 0 10px #9f7aea80,
        0 0 20px #9f7aea40;
    animation-duration: 8s !important;
}

/* Enhanced encrypted background with animated gradients */
.encrypted-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: 
        /* Animated gradient overlay */
        linear-gradient(45deg, 
            rgba(0, 255, 65, 0.03) 0%, 
            transparent 25%, 
            rgba(66, 153, 225, 0.03) 50%, 
            transparent 75%, 
            rgba(237, 137, 54, 0.03) 100%),
        /* Radial gradients */
        radial-gradient(circle at 20% 20%, rgba(0, 255, 65, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(66, 153, 225, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(159, 122, 234, 0.02) 0%, transparent 70%);
    z-index: -2;
    animation: gradientShift 20s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        transform: rotate(0deg) scale(1);
        filter: hue-rotate(0deg);
    }
    25% {
        transform: rotate(90deg) scale(1.05);
        filter: hue-rotate(90deg);
    }
    50% {
        transform: rotate(180deg) scale(1.1);
        filter: hue-rotate(180deg);
    }
    75% {
        transform: rotate(270deg) scale(1.05);
        filter: hue-rotate(270deg);
    }
}

/* Particle effects */
.matrix-particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #00ff41;
    border-radius: 50%;
    box-shadow: 0 0 6px #00ff41;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0px);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0;
    }
}

/* Code fragments that occasionally appear */
.code-fragment {
    position: absolute;
    font-family: 'Courier New', monospace;
    font-size: 10px;
    color: rgba(0, 255, 65, 0.6);
    white-space: nowrap;
    animation: codeFloat 15s linear infinite;
    z-index: -1;
}

@keyframes codeFloat {
    0% {
        transform: translateX(-100px) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateX(100vw) rotate(360deg);
        opacity: 0;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .matrix-column {
        font-size: 11px;
    }
    
    .matrix-column.crypto,
    .matrix-column.security {
        font-size: 12px;
    }
    
    .matrix-bg {
        opacity: 0.15;
    }
}

@media (max-width: 480px) {
    .matrix-column {
        font-size: 10px;
    }
    
    .matrix-bg {
        opacity: 0.12;
    }
}