index.css

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: var(--text-primary);
  background-color: var(--background);

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background-color: var(--background);
  color: var(--text-primary);
  -webkit-text-size-adjust: 100%; /* Prevents iOS font scaling */
}

/* Add viewport meta tag styles */
@viewport {
  width: device-width;
  initial-scale: 1;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
  color: var(--text-primary);
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: var(--card-bg);
  cursor: pointer;
  transition: border-color 0.25s;
}

button:hover {
  border-color: var(--accent-primary);
}

button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}