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

*,
*::before,
*::after {
  -webkit-box-sizing: inherit;
  -moz-box-sizing: inherit;
  box-sizing: inherit;
}

:root {
  --background: #eee;
  --card-background: white;
  --text: #1a1a1a;
  --border: #ccc;
  --stroke: #a9a9a9;
  --blue-light: #2196f3;
  --blue-dark: #1e88e5;
  --button-outline: black;
  --red: #ff6464;
  --red-alt: #e45353;
}

[data-theme="dark"] {
  --background: #090d13;
  --card-background: #0d1117;
  --text: #efefef;
  --border: #2a2e34;
  --stroke: #737373;
  --blue-light: #1976d2;
  --blue-dark: #1565c0;
  --button-outline: black;
  --red: #ff6464;
  --red-alt: #e45353;
}

body {
  background: var(--background);
  font-family: "Open Sans", Roboto, Arial, sans-serif;
  padding-top: 10px;
  color: var(--text);
}

.github {
  text-align: center;
  margin-bottom: 12px;
}

.github span {
  margin: 0 2px;
}

.container {
  margin: auto;
  max-width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.properties,
.output {
  max-width: 550px;
  margin: 10px;
  background: var(--card-background);
  padding: 25px;
  padding-top: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
}

@media only screen and (max-width: 1024px) {
  .properties,
  .output {
    width: 100%;
  }
}

h1 {
  text-align: center;
}

h2 {
  border-bottom: 1px solid var(--stroke);
}

:not(.btn):focus {
  outline: var(--blue-light) auto 2px;
}

.btn {
  max-width: 100%;
  background-color: var(--blue-light);
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  transition: 0.2s ease-in-out;
}

.btn:focus {
  outline: var(--button-outline) auto 2px;
}

.btn:not(:disabled):hover {
  background-color: var(--blue-dark);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
}

.btn:disabled {
  opacity: 0.8;
  box-shadow: none;
  cursor: not-allowed;
}

.parameters {
  margin: auto;
  display: grid;
  align-items: center;
  justify-content: start;
  text-align: left;
  grid-gap: 8px;
}

.two-columns {
  grid-template-columns: auto 1fr;
}

.three-columns {
  grid-template-columns: auto 1fr auto;
}

.parameters .btn {
  margin-top: 8px;
}

.parameters input[type="text"],
.parameters input[type="number"],
.parameters input.jscolor,
.parameters select {
  padding: 10px 14px;
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 6px;
  box-sizing: border-box;
  font-family: inherit;
  background: var(--card-background);
  width: 100%;
  min-width: 70px;
  color: inherit;
}

.param.inline {
  max-width: 54px;
  padding: 10px 6px !important;
}

.parameters input.jscolor {
  font-size: 12px;
  max-width: 218px;
}

@media only screen and (max-width: 1024px) {
  .parameters input.jscolor {
    max-width: none;
  }
}

.parameters select {
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='black' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
  background-repeat: no-repeat;
  background-position-x: 100%;
  background-position-y: 5px;
}

[data-theme="dark"] .parameters select {
  background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
}

span[title="required"] {
  color: var(--red);
}

input:invalid {
  outline: 2px var(--red) auto;
}

input:focus:invalid {
  outline: none;
  box-shadow: 0 0 0 1px var(--blue-light), 0 0 0 3px var(--red);
}

.delete-line.btn {
  margin: 0;
  background: inherit;
  color: inherit;
  font-size: 22px;
  padding: 0;
  height: 40px;
  width: 40px;
  background: var(--card-background);
  color: var(--red-alt);
  box-shadow: none;
}

.delete-line.btn:not(:disabled):hover {
  box-shadow: 0 1px 3px rgb(0 0 0 / 12%), 0 1px 2px rgb(0 0 0 / 24%);
  background: #e4535314;
}

.delete-line.btn:disabled {
  color: var(--stroke);
}

.add-line.btn {
  width: 100px;
  font-size: 1em;
  padding: 6px 0;
  margin-top: 0.8em;
}

.output img {
  max-width: 100%;
}

.output img.outlined {
  border: 1px dashed var(--red);
  border-radius: 2px;
}

.output .code-container {
  background: var(--border);
  border-radius: 6px;
  padding: 12px 16px;
  word-break: break-all;
}

.output .btn {
  margin-top: 16px;
}

label.show-border {
  display: block;
  margin-top: 8px;
}

.label-group {
  display: flex;
  gap: 0.5rem;
}

a.icon {
  color: var(--blue-light);
}

.top-bottom-split {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* tooltips */
.tooltip {
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

/* tooltip bubble */
.tooltip:before {
  content: attr(title);
  position: absolute;
  transform: translateY(-2.45rem);
  height: auto;
  width: auto;
  background: #4a4a4afa;
  border-radius: 4px;
  color: white;
  line-height: 30px;
  font-size: 1em;
  padding: 0 12px;
  pointer-events: none;
  opacity: 0;
}

/* tooltip bottom triangle */
.tooltip:after {
  content: "";
  position: absolute;
  transform: translateY(-1.35rem);
  border-style: solid;
  border-color: #4a4a4afa transparent transparent transparent;
  pointer-events: none;
  opacity: 0;
}

/* show tooltip on hover */
.tooltip[title]:hover:before,
.tooltip[title]:hover:after,
.tooltip:disabled:hover:before,
.tooltip:disabled:hover:after {
  transition: 0.2s ease-in opacity;
  opacity: 1;
}

.tooltip:disabled:before {
  content: "You must first input valid text.";
}

/* link underline effect */
a.underline-hover {
  position: relative;
  text-decoration: none;
  color: var(--text);
  margin-top: 2em;
  display: inline-flex;
  align-items: center;
  gap: 0.25em;
}
.underline-hover::before {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 1px;
  background-color: var(--blue-light);
  transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
@media (hover: hover) and (pointer: fine) {
  .underline-hover:hover::before {
    left: 0;
    right: auto;
    width: 100%;
  }
}