* {
font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
box-sizing: border-box;
}
body {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
.glow-button {
padding: 15px 30px;
border: none;
outline: none;
color: white;
background: #2c3e50;
cursor: pointer;
position: relative;
z-index: 0;
border-radius: 10px;
font-size: 16px;
font-weight: 500;
}
.glow-button:before {
content: '';
background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
position: absolute;
top: -2px;
left:-2px;
background-size: 400%;
z-index: -1;
filter: blur(5px);
width: calc(100% + 4px);
height: calc(100% + 4px);
animation: glowing 20s linear infinite;
opacity: 0;
transition: opacity .3s ease-in-out;
border-radius: 10px;
}
.glow-button:hover:before {
opacity: 1;
}
.glow-button:after {
z-index: -1;
content: '';
position: absolute;
width: 100%;
height: 100%;
background: #2c3e50;
left: 0;
top: 0;
border-radius: 10px;
}
@keyframes glowing {
0% { background-position: 0 0; }
50% { background-position: 400% 0; }
100% { background-position: 0 0; }
}
