*, html {
	margin: 0;
	padding: 0;
  font-family: "Exo 2", Geneva, Tahoma, sans-serif;
}

:root {
	--thin-border: 0.75px rgba(0, 0, 0, 0.5) dashed;
	--thick-border: 1.5px black solid;
}

body {
	background-color: #fff3e8;
	zoom: 2;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    /* display: none; <- Crashes Chrome on hover */
    -webkit-appearance: none;
    margin: 0; /* <-- Apparently some margin are still there even though it's hidden */
}

/* #sudoku-table input:hover {
  border: 1px solid rgb(100, 150, 255);
  border-radius: 3px;
} */

#sudoku-table input {
	width: 29px;
	height: 30px;
	display: none;
	margin: 0;
	padding: 0;
  border: none;
  text-align: center;
  font-size: 20px;
  position: absolute;
  top: 0px;
  left: 0px;
  background: transparent;
  cursor: pointer;
}

.user-set {
  color: blue;
}

.error {
  color: red;
}

select {
   -webkit-appearance: none; 
   -moz-appearance: none;
   appearance: none;       /* remove default arrow */
   /* background-image: url(...);   add custom arrow */
   font-size: 1em;
   padding: 2px;
}

.show-input {
  display: block;
}

#sudoku-table {
	margin: 0;
	border-collapse: collapse;
	font-size: 20px;
	border-spacing: 0;
	text-align: center;
	background-color: #fed;
	cursor: pointer;
}

td {
	width: 30px;
	height: 30px;
  border: var(--thin-border);
  position: relative;
}

td:nth-child(3n + 1) {
	border-left: var(--thick-border);
}

td:nth-child(9n) {
	border-right: var(--thick-border);
}

tr:nth-child(3n + 0) {
	border-bottom: var(--thick-border);
}

tr:first-child {
	border-top: var(--thick-border);
}

.highlight {
	background-color: #def;
}

.highlight2 {
	background-color: #bbb;
}

#table-footer {
	font-size: 0.4em;
	font-weight: 100;
	border-left: solid 0.75px black;
	border-bottom: solid 0.75px black;
	border-right: solid 0.75px black;
	height: 10px;
	padding: 8px;
}

button {
	font-size: 0.5em;
}

#main {
	width: 270px;
	margin: 0 auto;
}