Quantum core UI CSS loader animation | HTML, CSS & JavaScript

:root {
            --bg-dark: #03030d;
            --neon-cyan: #00f3ff;
            --neon-magenta: #ff0055;
            --neon-violet: #8a2be2;
            --core-size: 260px;
        }

body {
            margin: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
            perspective: 1200px;
            font-family: system-ui, -apple-system, sans-serif;
        }

/* Ambient background glow that reacts to the interface */
        .ambient-glow {
            position: absolute;
            width: 600px;
            height: 600px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            filter: blur(40px);
            pointer-events: none;
            transition: all 0.8s ease;
        }

/* Main Interactive Container */
        .quantum-loader {
            position: relative;
            width: var(--core-size);
            height: var(--core-size);
            transform-style: preserve-3d;
            cursor: pointer;
            transform: rotateX(45deg) rotateY(-15deg);
            transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

/* Interactive Trigger: Dramatic tilt shift on hover */
        .quantum-loader:hover {
            transform: rotateX(65deg) rotateY(0deg) rotateZ(180deg);
        }

/* Ring Structure Styling */
        .ring-layer {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            border: 2px solid transparent;
            transform-style: preserve-3d;
            mix-blend-mode: screen;
        }

/* Layer 1: Outer Cyan Tracking Ring */
        .ring-layer.outer {
            border-top-color: var(--neon-cyan);
            border-bottom-color: var(--neon-cyan);
            filter: drop-shadow(0 0 10px var(--neon-cyan));
            animation: spin-clockwise 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
        }

/* Layer 2: Inner Magenta Counter-Ring */
        .ring-layer.inner {
            top: 10%;
            left: 10%;
            width: 80%;
            height: 80%;
            border-left-color: var(--neon-magenta);
            border-right-color: var(--neon-magenta);
            filter: drop-shadow(0 0 12px var(--neon-magenta));
            animation: spin-counter 2.5s linear infinite;
        }

/* Layer 3: Center Sub-Orbital Ring */
        .ring-layer.core-orbit {
            top: 22%;
            left: 22%;
            width: 56%;
            height: 56%;
            border: 1px dashed rgba(250, 250, 250, 0.4);
            border-top-color: var(--neon-violet);
            filter: drop-shadow(0 0 15px var(--neon-violet));
            animation: spin-clockwise 1.5s ease-in-out infinite;
        }

/* Quantum Particles riding the tracks */
        .node {
            position: absolute;
            width: 12px;
            height: 12px;
            background: #fff;
            border-radius: 50%;
            top: 50%;
            left: 0;
            transform: translateY(-50%);
            box-shadow: 0 0 15px #fff, 0 0 30px var(--neon-cyan), 0 0 45px var(--neon-cyan);
        }

.ring-layer.inner .node {
            left: auto;
            right: 0;
            box-shadow: 0 0 15px #fff, 0 0 30px var(--neon-magenta), 0 0 45px var(--neon-magenta);
        }

/* Central Glassmorphic Fusion Core */
        .fusion-core {
            position: absolute;
            top: 35%;
            left: 35%;
            width: 30%;
            height: 30%;
            background: radial-gradient(circle, rgba(255,255,255,0.9) 0%, rgba(0,243,255,0.4) 40%, transparent 75%);
            border-radius: 50%;
            filter: blur(2px);
            box-shadow: 0 0 40px var(--neon-cyan), inset 0 0 20px #fff;
            animation: pulse-core 2s ease-in-out infinite alternate;
            pointer-events: none;
            transition: all 0.5s ease;
        }

/* INTERACTIVE EFFECTS (Hover States) */
        body:has(.quantum-loader:hover) .ambient-glow {
            filter: blur(60px);
        }

.quantum-loader:hover .outer {
            animation-duration: 1.5s;
            border-color: var(--neon-cyan);
        }

.quantum-loader:hover .inner {
            animation-duration: 0.8s;
            border-color: var(--neon-magenta);
        }

.quantum-loader:hover .fusion-core {
            box-shadow: 0 0 60px 20px var(--neon-magenta), 0 0 100px #fff;
            background: radial-gradient(circle, rgba(255,255,255,1) 0%, rgba(255, 0, 85, 0.6) 50%, transparent 80%);
            transform: scale(1.3);
        }

/* Status Typography */
        .status-text {
            position: absolute;
            bottom: -60px;
            left: 50%;
            transform: translateX(-50%) rotateX(-45deg); /* Counter-tilts text so it faces camera */
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.75rem;
            letter-spacing: 0.4em;
            text-transform: uppercase;
            white-space: nowrap;
            transition: all 0.4s ease;
            text-shadow: 0 0 5px rgba(255,255,255,0.1);
        }

.quantum-loader:hover .status-text {
            color: var(--neon-cyan);
            text-shadow: 0 0 10px var(--neon-cyan);
            letter-spacing: 0.6em;
        }

/* Animation Keyframes */
        @keyframes spin-clockwise {
            0% { transform: rotateZ(0deg); }
            100% { transform: rotateZ(360deg); }
        }

@keyframes spin-counter {
            0% { transform: rotateZ(360deg); }
            100% { transform: rotateZ(0deg); }
        }

@keyframes pulse-core {
            0% { transform: scale(0.9) translateZ(5px); opacity: 0.7; }
            100% { transform: scale(1.1) translateZ(15px); opacity: 1; }
        }

- Quantum core UI CSS loader animation

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