frontend/src/App.css

/* Global Application Styles */

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
    "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
    sans-serif;
  background-color: #f5f5f5;
  color: #333;
}

#root {
  margin: 0;
  padding: 0;
}

.app {
  display: flex;
  justify-content: center;
  align-items: stretch;
  height: 100vh;
  overflow: hidden;
  background-color: #f5f5f5;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 600;
}

p {
  margin: 0;
}

/* Buttons */
button {
  font-family: inherit;
}

/* Forms */
input,
textarea,
select {
  font-family: inherit;
  font-size: 14px;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    font-size: 14px;
  }

  h1 {
    font-size: 20px;
  }

  h2 {
    font-size: 18px;
  }

  h3 {
    font-size: 16px;
  }
}