:root { 
 font-family: system-ui, Arial, sans-serif; 
} 
body { 
 margin: 0; 
 background: #f6f7fb; 
 color: #111; 
} 
.container { 
 max-width: 900px; 
 margin: 0 auto; 
 padding: 24px; 
} 
h1 { 
 margin: 0 0 8px 0;
Página 2 
} 
.card { 
 background: #fff; 
 border: 1px solid #e6e6e6; 
 border-radius: 12px; 
 padding: 16px; 
 margin: 14px 0; 
} 
.muted { 
 color: #555; 
} 
button { 
 padding: 10px 12px; 
 border-radius: 10px; 
 border: 1px solid #ddd; 
 cursor: pointer; 
 background: #fff; 
} 
button:hover { 
 background: #f0f0f0; 
} 
.code { 
 background: #0f172a; 
 color: #e2e8f0; 
 padding: 12px; 
 border-radius: 10px; 
 overflow-x: auto; 
}