/* Treinamento Claude — base.css */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-feature-settings:"cv11","ss01";
}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.2;color:var(--text)}
p{margin:0}
button{font-family:inherit;cursor:pointer}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent-subtle);color:var(--accent-text)}
:focus-visible{outline:2px solid var(--accent-ring);outline-offset:2px;border-radius:var(--r-xs)}
.tnum{font-variant-numeric:tabular-nums}