/* Aurora Background Effect - Namespaced CSS */
.acb-wrapper {
    /* Default colors - can be overridden via JS */
    --acb-white: rgba(255, 255, 255, 0.8);
    --acb-black: rgba(0, 0, 0, 0.8);
    --acb-transparent: transparent;
    --acb-gradient-1: rgba(59, 130, 246, 0.8);
    --acb-gradient-2: rgba(165, 180, 252, 0.8);
    --acb-gradient-3: rgba(147, 197, 253, 0.8);
    --acb-gradient-4: rgba(221, 214, 254, 0.8);
    --acb-gradient-5: rgba(96, 165, 250, 0.8);
    
    position: relative;
    width: 100%;
    height: 100%;
    background-color: rgb(250, 250, 250);
    color: rgb(2, 6, 23);
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.acb-wrapper.acb-dark {
    background-color: rgb(24, 24, 27);
    color: white;
}

.acb-wrapper::before {
    content: '';
    position: absolute;
    inset: -10px;
    opacity: 0.5;
    pointer-events: none;
    filter: blur(10px);
    will-change: transform;
    mask-image: radial-gradient(ellipse at 100% 0%, black 10%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at 100% 0%, black 10%, transparent 70%);
    animation: acb-aurora 60s linear infinite;
}

.acb-wrapper::before {
    background-image: 
        repeating-linear-gradient(100deg, 
            var(--acb-white) 0%, 
            var(--acb-white) 7%, 
            var(--acb-transparent) 10%, 
            var(--acb-transparent) 12%, 
            var(--acb-white) 16%
        ),
        repeating-linear-gradient(100deg, 
            var(--acb-gradient-1) 10%, 
            var(--acb-gradient-2) 15%, 
            var(--acb-gradient-3) 20%, 
            var(--acb-gradient-4) 25%, 
            var(--acb-gradient-5) 30%
        );
    background-size: 300% 200%;
    background-position: 50% 50%;
}

.acb-wrapper.acb-dark::before {
    background-image: 
        repeating-linear-gradient(100deg, 
            var(--acb-black) 0%, 
            var(--acb-black) 7%, 
            var(--acb-transparent) 10%, 
            var(--acb-transparent) 12%, 
            var(--acb-black) 16%
        ),
        repeating-linear-gradient(100deg, 
            var(--acb-gradient-1) 10%, 
            var(--acb-gradient-2) 15%, 
            var(--acb-gradient-3) 20%, 
            var(--acb-gradient-4) 25%, 
            var(--acb-gradient-5) 30%
        );
}

.acb-wrapper.acb-no-mask::before {
    mask-image: none;
    -webkit-mask-image: none;
}

.acb-content {
    position: relative;
    z-index: 1;
    opacity: 0;
    transform: translateY(40px);
    animation: acb-fadeIn 0.8s ease-in-out 0.3s forwards;
}

@keyframes acb-aurora {
    0% {
        background-position: 50% 50%, 50% 50%;
    }
    100% {
        background-position: -200% -100%, -200% -100%;
    }
}

@keyframes acb-fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}