body { margin:0; font-family:'Inter',sans-serif; background:#0e2535; color:#fff; }
header { display:flex; justify-content:space-between; align-items:center; padding:20px 50px; background:#0b1c2b; }
header .logo { display:flex; align-items:center; gap:10px; }
header .logo-img { width:50px; height:50px; }
nav a { color:#23c2bd; text-decoration:none; margin-left:25px; font-weight:600; }
.section-header { padding:80px 20px 20px; text-align:center; }
.tutorial-steps { padding:40px 50px; display:flex; flex-direction:column; gap:25px; }
.step { background:#081826; padding:20px; border-radius:10px; }
a { color:#23c2bd; text-decoration:underline; }