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

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

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

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

#app {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

/* Button styles */
button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.25s;
  outline: none;
}

button:hover {
  border-color: #646cff;
}

button:focus,
button:focus-visible {
  outline: 2px solid #646cff;
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Input styles */
input, textarea {
  border-radius: 8px;
  border: 1px solid #3a3a3a;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-family: inherit;
  background-color: #2a2a2a;
  color: inherit;
  outline: none;
}

input:focus, textarea:focus {
  border-color: #646cff;
  outline: 2px solid #646cff;
  outline-offset: 2px;
}

/* List styles */
ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Accessibility helpers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus indicators */
.focus-visible {
  outline: 2px solid #646cff;
  outline-offset: 2px;
}

/* Light mode */
@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  
  button {
    background-color: #f9f9f9;
  }
  
  input, textarea {
    background-color: #ffffff;
    border-color: #d1d5db;
  }
}