:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  background: #ffffff;
  color: #383a42;
  font-family: Menlo, Consolas, 'SF Mono', monospace;
  font-size: 14px;
  font-weight: 400;
  padding: 2rem 1rem;
}

.wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  max-width: 700px;
}

.title {
  color: #a0a1a7;
  margin-bottom: 1.5rem;
}

.loading {
  color: #696c77;
}

.hidden {
  display: none;
}

.status {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  color: #696c77;
}

.status strong {
  color: #383a42;
}

.grid {
  display: inline-block;
  border: 1px solid #d4d4d4;
  margin: 0.5rem 0 1.5rem;
}

.row {
  display: flex;
}

.cell {
  width: 1.4em;
  height: 1.4em;
  border: 1px solid #eeeeee;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85em;
}

.controls {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

button {
  font-family: inherit;
  font-size: 1em;
  font-weight: inherit;
  background: transparent;
  color: #383a42;
  border: 1px solid #d4d4d4;
  padding: 0.4rem 1rem;
  cursor: pointer;
}

button:hover {
  border-color: #a0a1a7;
  background: #f5f5f5;
}

.params {
  border-top: 1px solid #eeeeee;
  padding-top: 1rem;
  width: 100%;
  max-width: 600px;
  margin-bottom: 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: repeat(4, auto);
  grid-auto-flow: column;
  column-gap: 2rem;
}

.params-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.params-row label {
  color: #696c77;
}

.params-row input {
  font-family: inherit;
  font-size: 1em;
  width: 4.5em;
  border: 1px solid #d4d4d4;
  padding: 0.2rem 0.4rem;
  background: #ffffff;
  color: #383a42;
  text-align: center;
}

input[type="range"] {
  width: 100%;
}

.links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.source {
  display: inline-block;
  color: #383a42;
  text-decoration: underline;
}

.about {
  position: relative;
  cursor: help;
  text-decoration: underline dotted;
}

.about::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  padding: 0.5rem 0.7rem;
  background: #383a42;
  color: #ffffff;
  font-size: 0.85em;
  text-align: left;
  text-decoration: none;
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.05s;
}

.about:hover::after {
  opacity: 1;
  visibility: visible;
}