add basic style's

Author: MDJAmin

css/style.css

@@ -0,0 +1,91 @@
+* {
+  box-sizing: border-box;
+}
+:root {
+  --x: 0;
+  --y: 0;
+  --xp: 0;
+  --yp: 0;
+  --hue: calc(0 + (var(--xp) * 500));
+  --bg: hsl(0 0% 10%);
+  --size: 100px;
+  --glow: radial-gradient(
+      50% 50% at center,
+      hsl(var(--hue) 80% 85%),
+      hsl(var(--hue) 80% 70%),
+      transparent
+    )
+    calc((var(--x) * 1px) - (var(--size) * 0.5))
+    calc((var(--y) * 1px) - (var(--size) * 0.5)) / var(--size) var(--size)
+    no-repeat fixed;
+}
+
+.controls {
+  position: fixed;
+  top: 2rem;
+  right: 2rem;
+}
+
+body {
+  display: flex;
+  place-items: center;
+  gap: 1rem;
+  flex-wrap: wrap;
+  justify-content: center;
+  min-height: 100vh;
+  font-family: "SF Pro Text", "SF Pro Icons", "AOS Icons", "Helvetica Neue",
+    Helvetica, Arial, sans-serif, system-ui;
+  background: var(--bg);
+}
+
+button {
+  border-radius: 1rem;
+  text-transform: uppercase;
+  font-weight: bold;
+  letter-spacing: 0.1ch;
+  background: var(--bg);
+  border: 4px solid transparent;
+  box-shadow: 0 1px hsl(0 0% 100% / 0.15) inset;
+  cursor: pointer;
+  background: linear-gradient(var(--bg), var(--bg)) padding-box, var(--glow),
+    linear-gradient(black, black) border-box;
+  transition: all 0.24s;
+  touch-action: none;
+  position: relative;
+  padding: 1rem 2rem;
+}
+
+button::before {
+  content: "";
+  position: absolute;
+  inset: 0;
+  box-shadow: 0 1px hsl(0 0% 100% / 0.15) inset;
+  background: var(--bg);
+  z-index: 2;
+  border-radius: 1rem;
+}
+
+button span {
+  background: var(--glow), black;
+  background-clip: text;
+  color: transparent;
+  height: 100%;
+  width: 100%;
+  z-index: 2;
+  position: relative;
+  inset: 0;
+}
+
+:root:has(button:active) {
+  --size: 300px;
+}
+
+button::after {
+  content: "";
+  position: absolute;
+  inset: -4px;
+  filter: blur(20px);
+  border: 4px solid transparent;
+  background: var(--glow);
+  border-radius: 1rem;
+}