/* ---- Bubble Theme Background ---- */
.bubble-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(40deg, rgb(108, 0, 162), rgb(0, 17, 82));
}

.bubble-bg svg {
    position: fixed;
    top: 0; left: 0;
    width: 0; height: 0;
}

.bubble-gradients {
    filter: url(#bubble-goo) blur(40px);
    width: 100%;
    height: 100%;
}

.bubble-g1, .bubble-g2, .bubble-g3, .bubble-g4, .bubble-g5, .bubble-interactive {
    position: absolute;
    mix-blend-mode: hard-light;
    opacity: 1;
}
.bubble-g1 {
    background: radial-gradient(circle at center, rgba(18, 113, 255, 0.8) 0, rgba(18, 113, 255, 0) 50%) no-repeat;
    width: 80%; height: 80%;
    top: 10%; left: 10%;
    transform-origin: center center;
    animation: bubble-vertical 30s ease infinite;
}
.bubble-g2 {
    background: radial-gradient(circle at center, rgba(221, 74, 255, 0.8) 0, rgba(221, 74, 255, 0) 50%) no-repeat;
    width: 80%; height: 80%;
    top: 10%; left: 10%;
    transform-origin: calc(50% - 400px);
    animation: bubble-circle 20s reverse infinite;
}
.bubble-g3 {
    background: radial-gradient(circle at center, rgba(100, 220, 255, 0.8) 0, rgba(100, 220, 255, 0) 50%) no-repeat;
    width: 80%; height: 80%;
    top: calc(10% + 200px); left: calc(10% - 500px);
    transform-origin: calc(50% + 400px);
    animation: bubble-circle 40s linear infinite;
}
.bubble-g4 {
    background: radial-gradient(circle at center, rgba(200, 50, 50, 0.8) 0, rgba(200, 50, 50, 0) 50%) no-repeat;
    width: 80%; height: 80%;
    top: 10%; left: 10%;
    transform-origin: calc(50% - 200px);
    animation: bubble-horizontal 40s ease infinite;
    opacity: 0.7;
}
.bubble-g5 {
    background: radial-gradient(circle at center, rgba(180, 180, 50, 0.8) 0, rgba(180, 180, 50, 0) 50%) no-repeat;
    width: 160%; height: 160%;
    top: -30%; left: -30%;
    transform-origin: calc(50% - 800px) calc(50% + 200px);
    animation: bubble-circle 20s ease infinite;
}
.bubble-interactive {
    background: radial-gradient(circle at center, rgba(140, 100, 255, 0.8) 0, rgba(140, 100, 255, 0) 50%) no-repeat;
    width: 100%; height: 100%;
    top: -50%; left: -50%;
    opacity: 0.7;
}

@keyframes bubble-circle {
    0%   { transform: rotate(0deg); }
    50%  { transform: rotate(180deg); }
    100% { transform: rotate(360deg); }
}
@keyframes bubble-vertical {
    0%   { transform: translateY(-50%); }
    50%  { transform: translateY(50%); }
    100% { transform: translateY(-50%); }
}
@keyframes bubble-horizontal {
    0%   { transform: translateX(-50%) translateY(-10%); }
    50%  { transform: translateX(50%) translateY(10%); }
    100% { transform: translateX(-50%) translateY(-10%); }
}