/* Gradient Overlay & Blobs */
.gradient-overlay {
    --cx1: 50%;
    --cy1: 50%;
    --cx2: 30%;
    --cy2: 60%;
    --cx3: 70%;
    --cy3: 40%;
    --cx4: 60%;
    --cy4: 70%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: var(--overlay-a, 0);
    transition: opacity 0.65s var(--ease);
}

/* Blobs are much larger now, and slower */
.gradient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(150px);
    will-change: transform, left, top;
    opacity: 0;
    transition: background 0.8s var(--ease), opacity 0.55s var(--ease);
}

/* Blob 1 (Top Left) */
.gradient-blob--1 {
    width: 1000px;
    height: 1000px;
    background: var(--blob-c1, #f15a24);
    left: var(--cx1);
    top: var(--cy1);
    transform: translate(-50%, -50%);
    animation: blob-drift-1 15s ease-in-out infinite alternate;
    opacity: var(--blob-a1, 0);
    transition-delay: 0ms, var(--blob-delay-1, 0ms);
}

/* Blob 2 (Top Right) */
.gradient-blob--2 {
    width: 1200px;
    height: 1200px;
    background: var(--blob-c2, #e9c695);
    left: var(--cx2);
    top: var(--cy2);
    transform: translate(-50%, -50%);
    animation: blob-drift-2 18s ease-in-out infinite alternate;
    opacity: var(--blob-a2, 0);
    transition-delay: 0ms, var(--blob-delay-2, 45ms);
}

/* Blob 3 (Bottom Left) */
.gradient-blob--3 {
    width: 1200px;
    height: 1200px;
    background: var(--blob-c3, #e9c695);
    left: var(--cx3);
    top: var(--cy3);
    transform: translate(-50%, -50%);
    animation: blob-drift-3 21s ease-in-out infinite alternate;
    opacity: var(--blob-a3, 0);
    transition-delay: 0ms, var(--blob-delay-3, 90ms);
}

/* Blob 4 (Bottom Right) */
.gradient-blob--4 {
    width: 1000px;
    height: 1000px;
    background: var(--blob-c4, #f15a24);
    left: var(--cx4);
    top: var(--cy4);
    transform: translate(-50%, -50%);
    animation: blob-drift-4 17s ease-in-out infinite alternate;
    opacity: var(--blob-a4, 0);
    transition-delay: 0ms, var(--blob-delay-4, 135ms);
}

.gradient-overlay--page {
    --overlay-a: 1;
    --blob-a1: 0.28;
    --blob-a2: 0.22;
    --blob-a3: 0.18;
    --blob-a4: 0.16;
    filter: blur(0);
    animation: page-blobs-fade 900ms var(--ease) forwards;
}

@keyframes page-blobs-fade {
    from {
        opacity: 1;
        filter: blur(0);
    }

    to {
        opacity: 0;
        filter: blur(26px);
    }
}

@keyframes blob-drift-1 {
    0% {
        transform: translate(-50%, -50%) scale(1) translateY(0);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.05) translateY(-3%);
    }

    100% {
        transform: translate(-50%, -50%) scale(1.12) translateY(2%);
    }
}

@keyframes blob-drift-2 {
    0% {
        transform: translate(-50%, -50%) scale(1) translateX(0);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.08) translateX(-2%);
    }

    100% {
        transform: translate(-50%, -50%) scale(1.16) translateX(3%);
    }
}

@keyframes blob-drift-3 {
    0% {
        transform: translate(-50%, -50%) scale(1) translateX(0);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.1) translateX(2%);
    }

    100% {
        transform: translate(-50%, -50%) scale(1.18) translateX(-3%);
    }
}

@keyframes blob-drift-4 {
    0% {
        transform: translate(-50%, -50%) scale(1) translateY(0);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.06) translateY(3%);
    }

    100% {
        transform: translate(-50%, -50%) scale(1.14) translateY(-2%);
    }
}

@media (max-width: 767px) {
    .gradient-blob {
        filter: blur(110px);
    }

    .gradient-blob--1 {
        width: 520px;
        height: 520px;
    }

    .gradient-blob--2 {
        width: 620px;
        height: 620px;
    }

    .gradient-blob--3 {
        width: 620px;
        height: 620px;
    }

    .gradient-blob--4 {
        width: 520px;
        height: 520px;
    }
}