chore: initialize Vite React TypeScript app

src/index.css

@@ -0,0 +1,86 @@
+:root {
+  --page-bg: #eff5df;
+  --page-bg-2: #dbe8c6;
+  --panel-strong: #0a332d;
+  --panel-soft: #587169;
+  --border: rgba(7, 51, 44, 0.12);
+  --shadow:
+    0 24px 60px rgba(19, 43, 34, 0.12),
+    0 8px 20px rgba(19, 43, 34, 0.08);
+  --sans: 'Bahnschrift', 'Trebuchet MS', sans-serif;
+  --heading: 'Arial Black', 'Bahnschrift', sans-serif;
+  --mono: 'Consolas', 'Courier New', monospace;
+  font: 18px/1.5 var(--sans);
+  color: var(--panel-strong);
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+html {
+  min-height: 100%;
+}
+
+body {
+  margin: 0;
+  min-height: 100vh;
+  background:
+    radial-gradient(circle at top left, rgba(255, 214, 10, 0.35), transparent 28%),
+    radial-gradient(circle at bottom right, rgba(11, 88, 73, 0.2), transparent 32%),
+    linear-gradient(180deg, var(--page-bg), var(--page-bg-2));
+}
+
+body::before {
+  content: '';
+  position: fixed;
+  inset: 0;
+  pointer-events: none;
+  background-image:
+    linear-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px),
+    linear-gradient(90deg, rgba(255, 255, 255, 0.14) 1px, transparent 1px);
+  background-size: 48px 48px;
+  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 78%);
+}
+
+#root {
+  min-height: 100vh;
+}
+
+h1,
+h2,
+h3,
+p {
+  margin: 0;
+}
+
+h1,
+h2,
+h3 {
+  font-family: var(--heading);
+  letter-spacing: 0.02em;
+}
+
+h1 {
+  margin: 18px 0 14px;
+  font-size: clamp(2.8rem, 8vw, 5rem);
+  line-height: 0.94;
+}
+
+h2 {
+  font-size: clamp(1.6rem, 3vw, 2.2rem);
+}
+
+p {
+  color: var(--panel-soft);
+}
+
+@media (max-width: 720px) {
+  :root {
+    font-size: 16px;
+  }
+}