Electric Card border Animation | HTML, CSS & JavaScript

:root {
    --bg-color: #020617;
    --card-bg: #0f172a;
    --electric-blue: #00f2ff;
    --spark-speed: 2s;
}

body {
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* The Main Container */
.electric-card {
    position: relative;
    width: 270px;
    height: 380px;
    background: var(--card-bg);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: transform 0.3s ease;
    cursor: pointer;
}

/* The Animated Electric Current (Pseudo-element) */
.electric-card::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    /* Multiple color stops create "thin bolts" instead of a solid block */
    background: conic-gradient(
        from 0deg,
        transparent 0%,
        var(--electric-blue) 2%,
        transparent 5%,
        transparent 40%,
        var(--electric-blue) 42%,
        transparent 45%,
        transparent 100%
    );
    animation: 
        rotate var(--spark-speed) linear infinite,
        flicker 0.1s infinite;
    filter: blur(5px) contrast(1.5);
}

/* Second layer for extra "plasma" glow */
.electric-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), 
                rgba(0, 242, 255, 0.15) 0%, 
                transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
}

.electric-card:hover::after {
    opacity: 1;
}

/* The Inner Card Body */
.card-inner {
    position: absolute;
    inset: 4px; /* The thickness of the electric border */
    background: var(--card-bg);
    border-radius: 18px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

h2 {
    margin: 0;
    letter-spacing: 4px;
    color: var(--electric-blue);
    text-shadow: 0 0 10px rgba(0, 242, 255, 0.5);
}

p {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 10px;
}

/* Animations */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
    75% { opacity: 0.9; }
    85% { opacity: 0.4; } /* Mimics a spark "pop" */
}

/* Hover interaction via JS */
.electric-card:hover {
    --spark-speed: 0.6s; /* Current flows faster on hover */
    box-shadow: 0 0 30px rgba(0, 242, 255, 0.2);
}

- Electric Card border Animation

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