.hp-header {
  background:#4f46e5;
  color:#fff;
  padding:10px 16px;
}
.hp-header-inner {
  max-width:1200px;
  margin:0 auto;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
}
.hp-brand {
  font-size:16px;
  font-weight:600;
}

/* Hidden checkbox for toggling mobile nav */
.hp-menu-toggle { display:none; }

/* Hamburger button (only visible on mobile) */
.hp-menu-btn {
  display:none;
  cursor:pointer;
  padding:6px;
}
.hp-menu-btn span {
  display:block;
  width:22px;
  height:2px;
  background:#fff;
  margin:4px 0;
}

/* Nav links */
.hp-nav {
  display:flex;
  gap:16px;
}
.hp-link {
  color:#fff;
  text-decoration:none;
  padding:4px 0;
}

/* Mobile behaviour */
@media (max-width: 768px) {
  .hp-menu-btn { display:block; }
  .hp-nav {
    display:none;
    width:100%;
    flex-direction:column;
    margin-top:8px;
    border-top:1px solid rgba(255,255,255,.25);
    padding-top:8px;
  }
  .hp-menu-toggle:checked + .hp-menu-btn + .hp-nav {
    display:flex;
  }
}