body{
  margin: 0;
  background: #f6f7fb;
  color: #111;
  line-height: 1.6;
  margin: 0;
  background:
    repeating-linear-gradient(45deg,
      rgba(0,0,0,0.015) 0px,
      rgba(0,0,0,0.015) 6px,
      rgba(255,255,255,0) 6px,
      rgba(255,255,255,0) 12px
    ),
    repeating-linear-gradient(-45deg,
      rgba(0,0,0,0.01) 0px,
      rgba(0,0,0,0.01) 6px,
      rgba(255,255,255,0) 6px,
      rgba(255,255,255,0) 12px
    ),
    #f6f7fb;
}

header{
  position: sticky;
  top: 0;
  background: #fff;
   margin-left: -12px;
  margin-right: -12px;
  padding: 0 12px;      /* keeps logo/menu not glued to edge */
  border-bottom: 1px solid #f0f0f0;
  z-index: 20;
}

.container {
  max-width: 420px;
  margin: 0 auto;
  padding: 0 12px;
  font-family: sans-serif;
  border-radius: 16px;
  padding: 0 14px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.06);
}


header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-box{
  flex: 1;
  height: 100px;
  border: 1px solid #eee;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}


.home-icon {
  height: 40px;
  width: auto;
  display: block;
}

.menu-btn {
  list-style: none;
  cursor: pointer;
  padding: 10px 20px;
  border: 1px solid #ddd;
  border-radius: 10px;
}

.menu-btn::-webkit-details-marker {
  display: none;
}

.menu {
  position: relative;
}

.menu nav {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: #fff;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 8px;
  width: 220px;
}
.menu nav { display: none; }
.menu[open] nav { display: block; }
.menu nav { z-index: 10; }

.menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu a {
  text-decoration: none;
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
}