:root {
  color-scheme: dark;
  --bg: #0d1422;
  --panel: #141f30;
  --text: #eef4f8;
  --muted: #94a8bc;
  --border: #2b4053;
  --accent: #64d6b2;
  --negative: #f17d88;
  --square-light: #dbe3cd;
  --square-dark: #779765;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
.fileButton {
  border: 1px solid var(--border);
  background: #22374b;
  color: var(--text);
  border-radius: 6px;
  padding: 10px 15px;
  cursor: pointer;
  font-weight: 550;
  transition: background 0.15s;
}
button:hover:not(:disabled),
.fileButton:hover {
  background: #2c465d;
}
button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
button.primary {
  background: var(--accent);
  color: #092a28;
  border-color: var(--accent);
}
button.primary:hover:not(:disabled) {
  background: #85e8c8;
}
button.danger {
  color: #f2a1aa;
  background: transparent;
}
button.small {
  font-size: 12px;
  padding: 6px 9px;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
a {
  color: var(--accent);
}
input,
select,
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid #3d5366;
  background: #0e1928;
  border-radius: 5px;
  color: var(--text);
  padding: 9px 10px;
}
input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
}
input[type="file"] {
  padding: 7px;
  font-size: 12px;
}
label {
  display: block;
  color: #b2c5d6;
  font-size: 12px;
  margin-bottom: 7px;
}
label input,
label select {
  display: block;
  margin-top: 6px;
}
textarea {
  resize: vertical;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  font-size: 30px;
  letter-spacing: -0.7px;
  margin-bottom: 4px;
}
h2 {
  font-size: 16px;
  font-weight: 650;
  margin: 0;
}
h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 20px 0 12px;
}
p {
  line-height: 1.5;
}
.muted,
.hint {
  color: var(--muted);
}
.hint {
  font-size: 12px;
  margin: 7px 0 12px;
}
.mono,
.metrics strong,
td.numeric,
pre {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}
.topbar {
  height: 67px;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  text-decoration: none;
  font-size: 25px;
  font-weight: 650;
  letter-spacing: -0.5px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand span {
  color: var(--accent);
  font-size: 41px;
  line-height: 1;
}
.topbar nav {
  display: flex;
  height: 100%;
  gap: 28px;
}
.topbar nav a {
  display: flex;
  align-items: center;
  color: #b2c5d6;
  text-decoration: none;
  padding: 0 10px;
  border-bottom: 3px solid transparent;
}
.topbar nav a[aria-current] {
  color: var(--accent);
  border-color: var(--accent);
}
.shell {
  max-width: 1640px;
  margin: 0 auto;
  padding: 24px 32px;
}
.pageTitle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 19px;
}
.pageTitle p {
  font-size: 17px;
  color: var(--muted);
  margin: 0;
}
.tabs {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 14px;
  background: #111e2e;
  overflow: auto;
}
.tabs button {
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  min-width: 130px;
  padding: 14px 25px;
  color: #b2c5d6;
}
.tabs button[aria-selected="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.inspectGrid {
  display: grid;
  grid-template-columns: minmax(340px, 1.1fr) minmax(340px, 1.04fr) minmax(
      270px,
      0.83fr
    );
  gap: 14px;
  align-items: start;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  min-width: 0;
}
.panelTitle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
  border-bottom: 1px solid var(--border);
}
.panelTitle p {
  margin-bottom: 0;
}
.panelBody {
  padding: 14px;
}
.boardPanel {
  padding: 0 14px 16px;
}
.boardPanel > .panelTitle {
  padding: 14px 0;
  border: 0;
}
.boardPanel .panelTitle span {
  font-size: 12px;
}
.boardWrap {
  position: relative;
  margin: 3px 0 12px;
}
.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  aspect-ratio: 1;
  overflow: hidden;
}
.square {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  background: var(--square-light);
  padding: 2px;
  border: 0;
  border-radius: 0;
  min-width: 0;
}
.square.dark {
  background: var(--square-dark);
}
.square:hover:not(:disabled) {
  background: #bdd5aa;
}
.square img {
  width: 91%;
  height: 91%;
  object-fit: contain;
  pointer-events: none;
}
.square.selected {
  box-shadow: inset 0 0 0 4px #e7b95c;
}
.square.target:after {
  content: "";
  width: 24%;
  height: 24%;
  border-radius: 50%;
  background: #133b2c88;
  position: absolute;
}
.square.last {
  box-shadow: inset 0 0 0 3px #e7b95c99;
}
.coordinate {
  font-size: 10px;
  position: absolute;
  color: #283b31;
  z-index: 1;
  font-weight: 650;
  line-height: 1;
}
.coordinate.rank {
  left: 3px;
  top: 3px;
}
.coordinate.file {
  right: 3px;
  bottom: 3px;
}
.boardArrows {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.boardTools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  margin: 12px 0 20px;
  font-size: 11px;
}
.boardTools .compact {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
}
.compact select {
  padding: 4px;
  width: auto;
  margin: 0;
  font-size: 11px;
}
.buttonRow {
  display: flex;
  gap: 9px;
  margin: 12px 0 0;
}
.buttonRow > * {
  flex: 1;
  min-width: 0;
}
.formGrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}
.formGrid.three {
  grid-template-columns: 1.5fr 0.65fr 1fr;
  gap: 9px;
}
.formGrid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.rail {
  display: grid;
  gap: 14px;
}
.connection {
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--negative);
}
.connection[data-state="connected"] {
  color: var(--accent);
}
.connection[data-state="connecting"] {
  color: #e7b95c;
}
.rail label:not(:first-child) {
  margin-top: 13px;
}
.metrics {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 1fr 0.8fr;
  border-block: 1px solid var(--border);
  margin-top: 18px;
  padding: 16px 0;
  gap: 12px;
}
.metrics > div {
  border-right: 1px solid var(--border);
}
.metrics > div:last-child {
  border: 0;
}
.metrics span {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
}
.metrics strong {
  font-size: 19px;
  font-weight: 650;
}
.metrics > div:first-child strong {
  font-size: 23px;
}
.lines {
  border: 1px solid var(--border);
  border-radius: 5px;
  overflow: hidden;
  min-height: 130px;
}
.line {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  gap: 8px;
  padding: 12px 10px;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  width: 100%;
  text-align: left;
  background: transparent;
  font-size: 12px;
  font-weight: 400;
}
.line:first-child {
  background: #174037;
  color: #b5f2df;
}
.line .pv {
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.empty {
  padding: 22px 12px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
}
.featureBar {
  display: grid;
  grid-template-columns: 100px 1fr 65px;
  align-items: center;
  gap: 8px;
  margin: 13px 0;
  font-size: 12px;
}
.barTrack {
  height: 20px;
  position: relative;
  background: linear-gradient(
    to right,
    transparent calc(50% - 0.5px),
    #71889b calc(50% - 0.5px),
    #71889b calc(50% + 0.5px),
    transparent calc(50% + 0.5px)
  );
  border-bottom: 1px solid #30495d;
}
.barFill {
  height: 100%;
  position: absolute;
  background: var(--accent);
  left: 50%;
}
.barFill.negative {
  background: var(--negative);
}
.featureBar .number {
  text-align: right;
  font-family: ui-monospace, monospace;
}
details {
  border-top: 1px solid var(--border);
  margin-top: 16px;
  padding-top: 12px;
}
summary {
  cursor: pointer;
  color: #cbdce9;
  font-size: 12px;
  padding: 4px 0;
}
details[open] > summary {
  margin-bottom: 12px;
}
.searchOptions {
  margin-top: 12px;
}
.check {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  margin: 10px 0;
}
.check input {
  margin: 0;
}
.summaryNumber span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.summaryNumber strong {
  display: block;
  font-size: 26px;
  margin-top: 4px;
}
.rail .empty {
  border: 1px dashed #3d5366;
  border-radius: 4px;
  margin: 10px 0 14px;
}
.activity {
  font-size: 12px;
  color: #bdcfdc;
  line-height: 1.8;
  max-height: 180px;
  overflow: auto;
}
.activity p {
  margin-bottom: 10px;
}
.activity p:last-child {
  margin: 0;
}
pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #0a1420;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  user-select: all;
}
ol {
  padding-left: 20px;
  font-size: 12px;
  line-height: 1.7;
}
.twoColumns {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 16px;
}
.toolbar {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
  margin: 16px 0;
}
.toolbar label {
  margin: 0;
}
.toolbar label input,
.toolbar label select {
  width: auto;
  max-width: 230px;
}
.tableScroll {
  overflow: auto;
  max-width: 100%;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
}
th {
  font-weight: 550;
  color: var(--muted);
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 12px 10px;
  border-bottom: 1px solid #233448;
  vertical-align: middle;
}
td button {
  padding: 5px 8px;
  font-size: 11px;
  margin: 2px;
}
td .source {
  display: block;
  color: var(--muted);
  font-size: 10px;
  margin-top: 4px;
}
td.fenCell {
  max-width: 280px;
  overflow-wrap: anywhere;
  font:
    11px ui-monospace,
    monospace;
}
.weightScroll {
  max-height: 500px;
}
.weightScroll input {
  max-width: 160px;
}
.chart {
  width: 100%;
  height: auto;
  margin: 15px 0;
}
.legend {
  display: flex;
  gap: 24px;
  justify-content: center;
  font-size: 12px;
}
.trainLegend {
  color: var(--accent);
}
.validationLegend {
  color: #e7b95c;
}
.resultText {
  line-height: 1.8;
  color: #bdcfdc;
  padding: 20px 0;
  font-size: 13px;
}
progress {
  width: 100%;
  height: 7px;
  accent-color: var(--accent);
  display: block;
  margin: 16px 0;
}
progress::-webkit-progress-bar {
  background: #25394b;
  border-radius: 5px;
}
progress::-webkit-progress-value {
  background: var(--accent);
  border-radius: 5px;
}
.message {
  border: 1px solid #476251;
  background: #183229;
  padding: 12px 16px;
  border-radius: 5px;
  margin: 0 0 14px;
  font-size: 13px;
}
.message.error {
  border-color: #744252;
  background: #351e2a;
  color: #ffbac4;
}
.diagnostics {
  font-size: 11px;
  line-height: 1.8;
  margin: 10px 0;
  white-space: pre-wrap;
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 32px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
  margin-top: 8px;
}
[hidden] {
  display: none !important;
}
@media (min-width: 1400px) {
  .boardPanel {
    padding-inline: 18px;
  }
  .panelBody {
    padding: 16px;
  }
  .boardTools {
    margin-bottom: 24px;
  }
  .metrics {
    margin-top: 20px;
  }
}
@media (max-width: 1180px) {
  .inspectGrid {
    grid-template-columns: minmax(320px, 1fr) minmax(320px, 1fr);
  }
  .rail {
    grid-column: 1/-1;
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .shell {
    padding: 22px;
  }
  .topbar {
    padding: 0 22px;
  }
  .formGrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .featureBar {
    grid-template-columns: 100px 1fr 55px;
  }
  .brand {
    font-size: 22px;
  }
}
@media (max-width: 760px) {
  .shell {
    padding: 18px 12px;
  }
  .topbar {
    height: 59px;
    padding: 0 14px;
  }
  .brand {
    font-size: 17px;
    gap: 6px;
  }
  .brand span {
    font-size: 31px;
  }
  .topbar nav {
    gap: 6px;
    font-size: 12px;
  }
  .topbar nav a {
    padding: 0 7px;
  }
  .pageTitle {
    align-items: start;
  }
  .pageTitle p {
    font-size: 13px;
    max-width: 260px;
  }
  h1 {
    font-size: 26px;
  }
  #savedStatus {
    font-size: 10px;
    max-width: 70px;
    text-align: right;
  }
  .tabs button {
    min-width: 80px;
    padding: 12px 17px;
    font-size: 12px;
  }
  .inspectGrid,
  .twoColumns {
    grid-template-columns: minmax(0, 1fr);
  }
  .rail {
    grid-template-columns: minmax(0, 1fr);
  }
  .formGrid.three {
    grid-template-columns: 1.2fr 0.6fr 1fr;
  }
  .metrics strong {
    font-size: 17px;
  }
  .panelTitle {
    flex-wrap: wrap;
  }
  .featureBar {
    grid-template-columns: 105px 1fr 60px;
  }
  footer {
    padding: 16px 14px;
    font-size: 10px;
  }
  .boardTools {
    font-size: 10px;
  }
  .toolbar button {
    font-size: 12px;
  }
  .buttonRow button {
    padding: 10px 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

/* Keep the primary inspection tools visible together on a laptop. */
.analysisPanel .panelBody {
  padding-top: 12px;
}
.analysisPanel .formGrid {
  margin: 10px 0;
}
.analysisPanel .metrics {
  padding: 12px 0;
  margin-top: 12px;
}
.analysisPanel .lines {
  min-height: 84px;
}
.analysisPanel .featureBar {
  margin: 9px 0;
}
.analysisPanel h3 {
  margin-top: 15px;
  margin-bottom: 9px;
}
.analysisPanel .searchOptions {
  padding-top: 8px;
  margin-top: 10px;
}
.analysisPanel label {
  margin-bottom: 5px;
}

.reviewPanel {
  margin-top: 20px;
}
.suggestionCard {
  border-bottom: 1px solid var(--border, #29384a);
  padding: 0 0 20px;
  margin: 0 0 20px;
  overflow-wrap: anywhere;
}
.suggestionCard:last-child {
  border: 0;
  margin-bottom: 0;
}
.suggestionCard details {
  margin: 12px 0;
}

@media (max-width: 600px) {
  #view-suggestions .formGrid.two {
    grid-template-columns: 1fr;
  }
}