body, html {
    margin: 0;
    padding: 0;
    background: #000;
    height: 100%;
    overflow: hidden;
}

/* Background Stars Canvas */
#starCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.main-wrapper {
    display: flex;
    width: 100vw;
    height: 100vh;
    position: relative;
    z-index: 1;
}

.home-scroll-container {
    flex: 1;
    height: 100vh;
    overflow-y: scroll;
    scrollbar-width: none;
}
.home-scroll-container::-webkit-scrollbar { display: none; }

.fixed-animation-area {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100vh;
}

.master-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Layer 1: Color Shift Circle */
#bg-color-circle {
    width: 550px;
    height: 550px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 255, 240, 0.4) 0%, transparent 70%);
    z-index: 5;
    animation: colorShift 10s infinite linear;
}

@keyframes colorShift {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

/* Layer 2: Icons */
#icon-rotation-layer {
    width: 340px;
    height: 340px;
    z-index: 10;
}

.small-circle {
    position: absolute;
    width: 55px;
    height: 55px;
}

/* Layer 4: My Image */
.image-wrapper { z-index: 25; }
.myimg {
    width: 320px;
    height: auto;
    filter: drop-shadow(0 0 25px rgba(0,0,0,0.9));
}

#preloader {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: black; display: flex; align-items: center; justify-content: center; z-index: 9999;
}
.loader {
    width: 40px; height: 40px; border: 4px solid white; border-bottom-color: transparent; border-radius: 50%;
    animation: rot 1s linear infinite;
}
@keyframes rot { from {transform: rotate(0deg)} to {transform: rotate(360deg)} }