body, html {
  width: 100%; 
  height: 100%;
  margin: 0;
  background-image: linear-gradient(#c4746e, #c44a41); 
  overflow: hidden; overflow-x: hidden;
}

.wrapper {
  width: 70vmin; 
  height: 70vmin; 
  margin: 0 auto; 
  background-color: #615751; 
  border-radius: 15px;
}

.grid {
    width: 100%;
    position: relative;
}

.cell {
    position: relative;
    width: 15vmin;
    height: 15vmin;
    background-color: #989890;
    margin: 2vmin 2vmin 0 0;
    font-size: 60px;
    text-align: center;
    line-height: 15vmin;
    font-weight:bold;
    color: white;
    float: left;
    border-radius: 10px;
}

.cell:nth-child(4n+1) {
    margin-left: 2vmin;
}

.score-container {
    position:absolute;  
    text-align:left;
    width: 5%;
    height: 8%;
    margin: 1%;
    top: 0;
    padding-right: 40px;
    padding-left: 10px;
    padding-top: 5px;
    font-family: Arial Black;
    color: #989890;
    background-color: #615751;
    border-radius: 10px;
}

#reset {
    position: absolute;
    display: inline-block;
    bottom: 0;
    left: 0;
    margin: 1%;
    width: 8%;
    height: 8%;
    font-size: 100%;
    transition-duration: 0.4s;
    border-radius: 10px;
    background-color:#615751;
    border: none;
    font-family: Arial Black;
    color: #989890;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

#reset:hover {
    background-color: white;
    color: black;
  }

.score-text {
    margin-left:auto; margin-right:0;
    font-size: 100%;
}

#header-container {
  display: flex;
  flex-flow: row;
  align-items: center;
  height: 15vh;
  width: 100%;
}

.title {
    flex: 1;
    text-align: center;
    font-size: 130%;
    height: 15vh;
    margin: 0;
    font-family: Arial Black;
    -webkit-text-stroke: 1px black;
    color: white;
    text-shadow:
        4px 4px 0 #000,
      -1px -1px 0 #000,  
       1px -1px 0 #000,
       -1px 1px 0 #000,
        1px 1px 0 #000;
}