.main-layout{display:flex;gap:20px;max-width:1600px;margin:20px auto}
.left-column{width:260px}
.center-column{flex:1}
.right-column{width:320px}
.panel{background:#242424;color:#eee;padding:16px;border-radius:12px; margin-bottom:1px;}
body{background:#121212;font-family:Arial; color:#f90}
a{color:#f90;text-decoration:none;display:block;padding:8px}