:root {
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  color:#17332e;
  background:#f2f7f5;
  color-scheme:light
}
* {
  box-sizing:border-box
}
body {
  margin:0
}
header,main,footer {
  width:min(1100px,calc(100% - 32px));
  margin-inline:auto
}
.site-header {
  padding:36px 0 24px
}
.eyebrow {
  margin:0 0 8px;
  color:#167c67;
  font-size:.75rem;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase
}
h1 {
  font-size:clamp(2rem,5vw,3.7rem);
  line-height:1.05;
  margin:0;
  letter-spacing:-.04em
}
h2,h3 {
  line-height:1.2
}
h2 {
  margin:0;
  font-size:1.35rem
}
h3 {
  margin:0;
  font-size:1.1rem
}
.lede {
  max-width:780px;
  color:#405c55;
  line-height:1.6
}
nav {
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  margin-top:24px
}
a {
  color:#096f59;
  font-weight:650
}
a:hover {
  text-decoration-thickness:2px
}
.explorer,.concepts article,.limits {
  background:#fff;
  border:1px solid #cfdfd9;
  border-radius:18px;
  box-shadow:0 10px 28px #12382f0c
}
.explorer {
  padding:clamp(18px,3vw,30px)
}
.section-heading {
  display:flex;
  justify-content:space-between;
  align-items:start;
  gap:24px
}
.source-note {
  max-width:340px;
  margin:0;
  color:#536a63;
  font-size:.84rem;
  line-height:1.45
}
.mode-tabs {
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:24px
}
.mode-tabs button,.controls button,select {
  border:1px solid #a8c5ba;
  border-radius:9px;
  background:#fff;
  color:#17332e;
  font:inherit
}
.mode-tabs button,.controls button {
  cursor:pointer;
  padding:10px 14px;
  font-weight:650
}
.mode-tabs .active,.controls .primary {
  background:#116e58;
  border-color:#116e58;
  color:#fff
}
.model-intro {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  margin:15px 0;
  padding:14px 18px;
  border-radius:10px;
  background:#eff7f3
}
.model-intro p {
  max-width:700px;
  margin:0;
  line-height:1.5
}
.model-intro label,.controls label {
  font-size:.83rem;
  font-weight:650;
  color:#3d5b52
}
.model-intro select,.controls select {
  display:block;
  min-height:38px;
  margin-top:4px;
  padding:4px 10px;
  max-width:100%
}
.controls {
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin:20px 0
}
.controls button:disabled {
  cursor:not-allowed;
  opacity:.5
}
.controls label {
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto
}
.controls label select {
  margin:0
}
.progress {
  font-variant-numeric:tabular-nums;
  color:#526a62;
  font-size:.85rem
}
.event {
  padding:16px 18px;
  border-left:5px solid #dfa64f;
  background:#fffbf2;
  border-radius:10px
}
.event p {
  margin:8px 0 0;
  line-height:1.45
}
.event .relabel-detail {
  font-weight:700;
  color:#8a540d
}
.table-wrap {
  overflow:auto;
  margin-top:20px;
  border:1px solid #d7e4df;
  border-radius:10px
}
table {
  width:100%;
  border-collapse:collapse;
  text-align:left;
  min-width:640px
}
caption {
  padding:12px;
  text-align:left;
  font-weight:700;
  background:#eaf4ef
}
th,td {
  padding:10px 12px;
  border-top:1px solid #dbe7e1;
  vertical-align:top
}
th {
  font-size:.76rem;
  text-transform:uppercase;
  letter-spacing:.04em;
  color:#51665e;
  background:#f6faf8
}
td {
  font-size:.91rem
}
td code {
  font-size:.84rem;
  white-space:nowrap
}
tr.new {
  background:#e8f6ee
}
tr.changed {
  background:#fff3dc
}
tr.changed td:last-child {
  color:#87520c;
  font-weight:700
}
tr.new td:last-child {
  color:#0d7253;
  font-weight:700
}
.fixture-note {
  margin:12px 0 0;
  color:#536a63;
  font-size:.82rem
}
.concepts {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin:18px 0
}
.concepts article {
  padding:20px
}
.concepts p,.limits p {
  line-height:1.55;
  color:#405c55
}
.limits {
  padding:22px;
  margin-bottom:18px
}
footer {
  padding:12px 0 36px;
  color:#506a61;
  font-size:.86rem
}
button:focus-visible,select:focus-visible,a:focus-visible {
  outline:3px solid #d59431;
  outline-offset:2px
}
[hidden] {
  display:none!important
}
@media(max-width:760px) {
  .section-heading,.model-intro {
  display:block
}
.source-note {
  margin-top:12px
}
.model-intro label {
  display:block;
  margin-top:12px
}
.controls label {
  margin-left:0
}
.concepts {
  grid-template-columns:1fr
}
}
@media(prefers-reduced-motion:reduce) {
  * {
  scroll-behavior:auto!important;
  transition:none!important
}
}