* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  overflow-x: hidden;
}

/* 1) Full screen background so it doesn't feel "tiny" */
body{
  margin:0;
  min-height:100vh;
  background: url("your-bg.png"); /* optional */
  background-size: cover;
  background-attachment: fixed;
  background-color: pink;
}

/* 2) Centered but WIDE wrapper (this is the key) */
.wrap {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 24px;
}

/* 3) Multi-column layout = looks “full” */
.layout{
  display: grid;
  grid-template-columns: 260px 1fr 260px; /* left / center / right */
  gap: 18px;
}

.header{
  text-align:center;
  margin-bottom: 18px;
}

/* 4) “Boxes” like burger sites use everywhere */
.box{
  padding: 16px;
  border: 2px solid #000;
  background: rgba(255,255,255,0.85);
}

/* Mobile: stack into one column */
@media (max-width: 900px){
  .layout{ grid-template-columns: 1fr; }
}

.banner {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  
  }