body {
  margin: 0;
  font-family: "Open Sans", Arial, sans-serif;
  color: #202020;
}

input, textarea, button {
  font-family: inherit;
  color: inherit;
}

a, button {
  cursor: pointer;
}

button {
  background: none;
  border: none;
  font-size: 18px;
}

::-moz-placeholder {
  color: black;
  opacity: 0.65;
}

::-webkit-input-placeholder {
  color: black;
  opacity: 0.65;
}

::-ms-input-placeholder {
  color: black;
  opacity: 0.65;
}

:focus::-moz-placeholder {
  opacity: 0;
}

:focus::-webkit-input-placeholder {
  opacity: 0;
}

:focus::-ms-input-placeholder {
  opacity: 0;
}

.content, .nav {
  width: 960px;
  margin: 0 auto;
}


/****************************************
  Navigation Bar
****************************************/

.nav-bar {
  background: #f7f7f7;
  border-bottom: 1px solid #d9d9d9;
  margin-bottom: 40px;
}

.nav {
  list-style-type: none;
  padding: 0;
}

.nav > li {
  display: inline;
}

.nav li {
  position: relative;
  z-index: 99;
}

.nav ul {
  display: none;
  position: absolute;
  margin: 0;
  padding: 0;
  list-style-type: none;
  width: 180px;

  background: white;
  border: solid #c0c0c0 1px;
}

li:hover ul {
  display: block;
}

.nav li a {
    display: inline-block;
    padding: 10px 15px;
    text-decoration: none;
}

.nav ul li a {
  display: block;
}

.nav li a:hover, .menu-open {
    background-color: #dedede;
}


/****************************************
  Reaction Input Page
****************************************/

.model-name-input {
  border: none;
  border-bottom: solid #C0C0C0 1px;
  font-size: 20px;
  font-weight: bold;
}

.reaction-table {
  list-style-type: none;
  margin: 20px 0 40px;
  padding: 0;
}

.reaction-row > * {
  vertical-align: middle;
}

.reaction-row:nth-child(odd) {
  background: #f2f2f2;
  padding: 10px 15px;
  border-radius: 10px;
}

.reaction-row:nth-child(even) {
  padding: 15px;
}

.row-number {
  display: inline-block;
  text-align: right;
  width: 25px;
  margin-right: 8px;

  font-size: 16px;
  font-weight: bold;
}

.left-input, .right-input {
  overflow: hidden;
  resize: none;
  width: 382px;
  margin: 0;
  padding: 4px 8px;
  border: solid #d8d8d8 1px;
  font-size: 16px;
}

.left-input:focus, .right-input:focus {
  border: solid #15a8fc 1px;
}

.left-input {
  text-align: right;
}

.arrow-button {
  margin: 0 8px;
}

.remove-button {
  margin-left: 12px;
}

.clear-button {
  float: right;
  margin-top: 5px;
}


/****************************************
  Invalid Input/Textarea
****************************************/

.invalid {
  background: #fba0a0;
  border: solid #f7143f 1px;
}

.invalid:focus {
  background: white;
}


/****************************************
  Buttons
****************************************/

.sq-button {
  display: inline-block;
  border-radius: 5px;
  width: 25px;
  height: 25px;
  border: 0;
  padding: 0;
  font-size: 16px;
}

.red-bg {
  background: #f96060;
  color: white;
}

.red-bg:hover, .red-bg:focus {
  background: #f7143f;
}

.blue-bg {
  background: #488ef7;
  color: white;
}

.blue-bg:hover, .blue-bg:focus {
  background: #15a8fc;
}

.green-bg {
  background: #75ca22;
  color: white;
}

.green-bg:hover, .green-bg:focus {
  background: #92db4a;
}

.icon-text-button .sq-button {
  vertical-align: top;
  margin-right: 2px;
}

.row {
  margin: 20px 0;
}


/****************************************
  Modal Window
****************************************/

.modal {
  position: fixed;
  z-index: 99;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background: rgba(0, 0, 0, 0.8);
}

.modal-box {
  background-color: #ffffff;
  margin: 15% auto;
  padding: 20px 30px;
  width: 320px;
  position: relative;
  border-radius: 10px;
}

.generation-result {
  margin: 40px 0;
}

.generation-result h1 {
  margin: 0;
  float: left;
}

.download-button {
  background: #75ca22;
  float: right;
  border-radius: 8px;
  color: white;
  padding: 10px;
}

.generation-description {
  clear: both;
}

.generation-output {
  overflow: auto;
  background: #f4f4f4;
  padding: 10px;
}

.add-modal h2 {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 600;
}

.add-modal label {
  display: inline-block;
  margin-right: 10px;
}

.add-modal input {
  display: block;
  width: 60px;
  padding: 5px;
  font-size: 16px;
  border: 1px solid #d0d0d0;
}

.add-button {
  vertical-align: bottom;
  border-radius: 10px;
  padding: 7px 12px;
  font-size: 14px;
  font-weight: bold;
}

.close-button {
	position: absolute;
	top: 20px;
	right: 10px;
	color: #404040;
}

/****************************************
  Equation Input Page
****************************************/

.equation-table {
  list-style-type: none;
  margin: 20px 0 40px;
  padding: 0;
}

.equation-row > * {
  vertical-align: middle;
}

.equation-row:nth-child(odd) {
  background: #f2f2f2;
  padding: 10px 15px;
  border-radius: 10px;
}

.equation-row:nth-child(even) {
  padding: 15px;
}

.variable-input, .expression-input {
  overflow: hidden;
  resize: none;
  margin: 0;
  padding: 4px 8px;
  border: solid #d8d8d8 1px;
  font-size: 16px;
}

.variable-input {
  width: 64px;
  text-align: center;
}

.expression-input {
  width: 690px;
}

.variable-input:focus, .expression-input:focus {
  border: solid #15a8fc 1px;
}


th, td {
  text-align: center;
  padding: 2px 4px;
}