:root{
--bg:#ffffff;
--text:#111111;
--muted:#5f5f5f;
--line:#e9e9e9;
--card:#ffffff;
--black:#0b0b0b;
--red:#c40010; /* vermelho principal */
--red2:#ff2a2a; /* variação para gradiente */
--shadow: 0 10px 30px rgba(0,0,0,.10);
--radius:16px;
--container: 1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
margin:0;
font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
color:var(--text);
background:var(--bg);
}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
.container{
max-width: var(--container);
margin: 0 auto;
padding: 0 18px;
}
/* Header */
.site-header{
position: sticky;
top: 0;
z-index: 50;
background: