* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}



/* ---- Tours ---- */
#tours {
  padding-top: 0em;
}
#tours h2 {
  margin: 0;
  text-align: center;
}
#tours form {
  display: flex;
  flex-direction: column-reverse;
  flex-wrap: wrap;
  justify-content: space-around;
  margin: 0 auto;
  padding: 4em 0;
  max-width: 600px;
}
@media (min-width: 500px) {
  #tours form {
    flex-direction: row;
  }
}
#tours form input, #tours form button {
  margin: 0 1em;
  padding: 10px;
  height: 50px;
  outline: 0;
}
#tours form input {
  background-color: #fff;
  margin-bottom: 1em;
  border: 1px solid #ddd;
  border-radius: 3px;
  color: #494f4f;
  -webkit-transition: border-color 0.4s;
  -moz-transition: border-color 0.4s;
  transition: border-color 0.4s;
}
#tours form input:focus {
  border-color: #879090;
}
@media (min-width: 500px) {
  #tours form input {
    flex: 3;
    margin-bottom: 0;
  }
}
#tours form .button {
  border: 0;
  box-shadow: inset 0 0 0 2px #879090;
  color: #494f4f;
}
#tours form .button:hover, #tours form .button:focus {
  background: #879090;
  color: #fff;
}
@media (min-width: 500px) {
  #tours form .button {
    flex: 100px;
  }
}
#tours ul, #tours ul li, #tours ul li div {
  display: flex;
}
#tours ul {
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}
#tours ul li {
  background: rgba(0, 0, 0, 0.35);
  position: relative;
  flex-direction: column;
  cursor: pointer;
  -webkit-transition: background 0.4s;
  -moz-transition: background 0.4s;
  transition: background 0.4s;
}
#tours ul li:hover {
  background: rgba(0, 0, 0, 0);
}
@media (min-width: 500px) {
  #tours ul li {
    flex: 50%;
  }
}
@media (min-width: 800px) {
  #tours ul li {
    flex: 25%;
  }
}
#tours ul li div {
  position: absolute;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1em;
  width: 100%;
  height: 100%;
  text-align: center;
  color: #fff;
}
#tours ul li div h3, #tours ul li div h4 {
  margin: 0;
}
#tours ul li div h3 {
  margin-bottom: 0.35em;
  font-size: 1em;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
}
#tours ul li div h4 {
  font-weight: 300;
  letter-spacing: 1px;
}
#tours ul li img {
  position: relative;
  z-index: -1;
}