body{
  background:#0f1115;
  color:white;
  font-family:Arial;
  margin:0;
}

header{
  background:#1a1d23;
  padding:15px;
  display:flex;
  gap:20px;
}

.card{
  background:#1a1d23;
  padding:20px;
  margin:15px 0;
}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(250px,1fr));
  gap:20px;
  padding:20px;
}

button{
  background:#005bff;
  border:none;
  padding:12px;
  color:white;
  cursor:pointer;
}

button:hover{
  background:#2979ff;
}

.checkout{
  display:flex;
  gap:40px;
  padding:20px;
}

.left{flex:2}
.right{flex:1}

input{
  padding:10px;
  background:#111;
  border:1px solid #333;
  color:white;
}
.header {
  background:#111318;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:16px 40px;
  border-bottom:1px solid #222;
}

.logo {
  font-size:22px;
  font-weight:bold;
}

.nav {
  display:flex;
  gap:20px;
  align-items:center;
}

.nav a {
  color:#ccc;
  text-decoration:none;
}

.nav a:hover {
  color:white;
}

.btn-primary {
  background:#005bff;
  padding:10px 16px;
  border:none;
  color:white;
  cursor:pointer;
}

.btn-danger {
  background:#aa2e2e;
  padding:10px 16px;
  border:none;
  color:white;
  cursor:pointer;
}