feat(stylesheets): add application

examples/blog/app/assets/stylesheets/application.css

@@ -0,0 +1,54 @@
+body {
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+  color: #1a1a1a;
+  max-width: 960px;
+  margin: 0 auto;
+  padding: 1rem;
+}
+
+header {
+  border-bottom: 1px solid #ddd;
+  margin-bottom: 1.5rem;
+  padding-bottom: 1rem;
+}
+
+.layout {
+  display: flex;
+  gap: 2rem;
+}
+
+.layout main {
+  flex: 3;
+}
+
+.layout aside {
+  flex: 1;
+  border-left: 1px solid #ddd;
+  padding-left: 1rem;
+}
+
+.session-status {
+  font-size: 0.9rem;
+  color: #555;
+}
+
+.button-to {
+  display: inline;
+}
+
+.button-to button {
+  background: none;
+  border: none;
+  color: #b00020;
+  cursor: pointer;
+  padding: 0;
+  font: inherit;
+  text-decoration: underline;
+}
+
+.flash-notice {
+  background: #eef7ee;
+  border: 1px solid #bcd8bc;
+  padding: 0.5rem 0.75rem;
+  margin-bottom: 1rem;
+}