* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: gray;
  font-family: sans-serif;
  height: 100vh;
}

img {
  width: 100%;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: black;
}

.container {
  margin: 0 auto;
  padding: 0 15px;
}

/*NAVBAR*/

.navbar {
  padding: 30px 0;
  margin-bottom: 100px;
}

.logo {
  padding-right: 50px;
}

.navbar .container {
  width: 1300px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-left,
.list-items {
  display: flex;
}

.nav-right .nav-btn {
  border: 1px solid black;
  border-radius: 15px;

  padding: 10px 20px;
  cursor: pointer;
}

.list-items {
  position: relative;
  cursor: pointer;
}

.list-items li {
  padding: 0 10px;
  margin: 0 5px;
}

.nav-right a {
  display: inline-block;
  padding: 0 20px;
}

.list-items .features {
  display: flex;
  align-items: center;
  gap: 5px;
}



.submenu {
  position: absolute;
  top: 50px;
  right: 280px;
  background: white;
  width: 150px;
  height: auto;
  border-radius: 5px;
  display: none;
  justify-content: center;
 

}

.submenu.submenu-two {
  right: 140px;
  width: 110px;
}

.list-items .list-item.active .submenu {
  display: block;
}

.list-items .list-item.active .features img {
  transform: rotate(180deg);
  transition: all 0.5s ease;
}

/* this  above, is to make the arrow img rotate upside down on click*/

.submenu .subitems {
  margin: 15px 10px;
}

.subitems a img {
  width: 20px;
  height: 20px;
  margin-right: 5px;
  vertical-align: middle;
}

.hamburger-btn {
  display: none;
  cursor: pointer;
  transition: all .5s ease;
}

/*MOBILE MENU*/

.mobile-menu {
  position: fixed;
  background: white;
  height: 100%;
  width: 250px;
  right: -300px;
  top: 0;
  padding: 30px;
  z-index: 1000;
  transition: all 0.3s;
}

.hidden {
  display: none;
}

.mobile-menu-items {
  margin-top: 50px;
  cursor: pointer;
  font-weight: bold;
}

.mobile-menu-item {
  margin-top: 20px;
}

.mobile-menu-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-menu-title img {
  width: 10px;
}

.mobile-dropdown img {
  width: 15px;
  vertical-align: middle;
}

.mobile-menu-items .mobile-menu-item.active .mobile-menu-title img{
  transform: rotate(180deg);
  transition: all 0.5s ease;
}

.mobile-dropdown {
  opacity: 0;
  height: 0;
  width: 0;
  transition: all 0.5s ease;
}

.mobile-dropdown .items span {
  margin-left: 5px;
  font-size: 15px;
}

.mobile-menu-items .mobile-menu-item.active .mobile-dropdown {
  padding: 10px 30px;
  opacity: 1;
  height: auto;
  width: auto;
}

.mobile-menu-items .mobile-menu-item.active .mobile-dropdown .items {
  margin: 15px 0;
}

.mobile-menu-items .links {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-items .nav-btn {
  border: 1px solid black;
  border-radius: 15px;
  padding: 10px 20px;
  cursor: pointer;
}

/*MAIN*/

main .container {
  width: 1100px;
  display: grid;
  grid-template-columns: 1fr 400px;
  justify-content: space-between;
  align-items: center;
}

.hero-h1 {
  font-size: 5rem;
}

.hero-h1 br::before {
  content: " ";
}
.hero-h1 br::after {
  content: "";
}

.hero-header{
  margin-top: 20px;
}


.hero-header p {
  width: 55%;
  margin: 20px 0;
}

.hero-image .mobile {
  display: none;
}

.hero-btn {
  display: inline-block;
  border: 1px solid black;
  border-radius: 15px;
  background: black;
  color: white;
  padding: 15px 30px;
  cursor: pointer;
  margin: 30px 0;
}

.clients {
  display: grid;
  grid-template-columns: repeat(4, 100px);
  align-items: center;
}

.clients img {
  width: 80px;
  margin: 30px 0;
}

/* MEDIA QUERIES */

@media (max-width: 960px) {
  .navbar {
    margin-bottom: 10px;
  }

  .navbar .container,
  main .container {
    width: 100%;
  }

  .nav-left .list-items,
  .nav-right {
    display: none;
  }
  .hamburger-btn {
    display: block;
    z-index: 10000;
  }

  .mobile-menu.active {
    right: 0;
  }

  main .container {
    grid-template-columns: 1fr;
  }

  .hero-image {
    width: 100%;
    order: -1;
  }

  .hero-image .mobile {
    display: block;
  }

  .hero-image .desktop {
    display: none;
  }

  .hero-h1 {
    width: 100%;
    text-align: center;
    margin: 30px auto;
    font-size: 2rem;
  }

  .hero-h1 br {
    display: none;
  }

  .hero-header p {
    width: 100%;
    text-align: center;
  }

  .clients {
    grid-template-columns: repeat(4, 1fr);
  }

  .clients img {
    margin: 40px auto;
  }

  .hero-btn {
    display: block;
    text-align: center;
    width: 32%;
    margin: auto;
  }
}