:root {
  --bg: #111318;
  --bg-raised: #191c23;
  --bg-sunk: #0c0e12;
  --border: #2a2e38;
  --fg: #e6e8ee;
  --fg-dim: #b3b8c5;
  --fg-faint: #7a8090;
  --accent: #7aa2ff;
  --accent-fg: #0b1020;
  --link: #8fb0ff;
  --link-visited: #b9a2ff;
  --ok: #4ade80;
  --bad: #f87171;
  --warn: #fbbf24;
  --active-line: #ffffff08;
  --selection: #7aa2ff40;
  --hover: #ffffff0d;
  --syn-keyword: #c792ea;
  --syn-string: #c3e88d;
  --syn-number: #f78c6c;
  --syn-comment: #6b7385;
  --syn-fn: #82aaff;
  --syn-def: #ffcb6b;
  --syn-punct: #9aa3b5;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  /* pydle.net uses Tailwind's 500 shades (amber-950 for brown) */
  --c-white: #ffffff;
  --c-black: #000000;
  --c-red: oklch(63.7% 0.237 25.331);
  --c-green: oklch(72.3% 0.219 149.579);
  --c-blue: oklch(62.3% 0.214 259.815);
  --c-yellow: oklch(79.5% 0.184 86.047);
  --c-orange: oklch(70.5% 0.213 47.604);
  --c-brown: oklch(27.9% 0.077 45.635);
  --c-purple: oklch(62.7% 0.265 303.9);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f7f5;
    --bg-raised: #ffffff;
    --bg-sunk: #efefec;
    --border: #dcdcd6;
    --fg: #1d1f24;
    --fg-dim: #444851;
    --fg-faint: #80848d;
    --accent: #3358d4;
    --accent-fg: #ffffff;
    --link: #2d4fc0;
    --link-visited: #6a3fb5;
    --ok: #15803d;
    --bad: #c62828;
    --warn: #b45309;
    --active-line: #0000000a;
    --selection: #3358d433;
    --hover: #0000000a;
    --syn-keyword: #8b2fc9;
    --syn-string: #2f7a1f;
    --syn-number: #b4511a;
    --syn-comment: #8a8f99;
    --syn-fn: #2a5bd7;
    --syn-def: #9a6700;
    --syn-punct: #5b6170;
    color-scheme: light;
  }
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  height: 100%;
}
body {
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.45 var(--sans);
}
#app {
  display: flex;
  flex-direction: column;
  height: 100%;
}
a[href] {
  color: var(--link);
  text-decoration: none;
}
a[href]:visited {
  color: var(--link-visited);
}
a[href]:hover {
  text-decoration: underline;
}
a[href]:active {
  opacity: 0.7;
}
button {
  font: inherit;
  color: inherit;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
button:hover:not(:disabled) {
  background: var(--hover);
  border-color: var(--fg-faint);
}
button:active:not(:disabled) {
  transform: translateY(1px);
}
button:disabled {
  opacity: 0.4;
  cursor: default;
}
button.icon,
a.icon,
span.icon {
  background: none;
  border: 1px solid transparent;
  padding: 4px;
  color: var(--fg-dim);
  display: inline-flex;
  border-radius: 6px;
}
button.icon:hover:not(:disabled),
a.icon:hover {
  background: var(--hover);
  color: var(--fg);
  border-color: transparent;
  text-decoration: none;
}
a.icon:visited {
  color: var(--fg-dim);
}
button.icon.on {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}
span.icon.disabled {
  opacity: 0.3;
}
code,
kbd,
.mono {
  font-family: var(--mono);
  font-size: 0.92em;
}
kbd {
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0 4px;
  font-size: 0.8em;
}
.grow {
  flex: 1;
}
.faint {
  color: var(--fg-faint);
}
.small {
  font-size: 12px;
}
.ok {
  color: var(--ok);
}
.bad {
  color: var(--bad);
}
.warn {
  color: var(--warn);
}
.hidden {
  visibility: hidden;
}
.spin {
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- header ---------- */
.top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
  flex: none;
}
.logo,
.logo:visited {
  font-weight: 700;
  font-size: 17px;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.logo sup {
  color: var(--accent);
}
.puzzle-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
}
.puzzle-title {
  padding: 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nick {
  font: inherit;
  color: var(--fg);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 3px 6px;
  text-align: right;
  min-width: 0;
}
.nick:hover {
  border-color: var(--border);
}
.nick:focus {
  outline: none;
  border-color: var(--accent);
  text-align: left;
}
.pop-wrap {
  position: relative;
}
.pop {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  width: min(420px, calc(100vw - 32px));
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  z-index: 20;
  box-shadow: 0 8px 30px #0006;
}
.pop p {
  margin: 0 0 8px;
}
.pop .row {
  display: flex;
  gap: 6px;
}
.pop input {
  flex: 1;
  min-width: 0;
  background: var(--bg-sunk);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 6px;
}

/* ---------- layout ---------- */
.work {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 260px;
}
.side {
  overflow: auto;
  padding: 12px;
  border-right: 1px solid var(--border);
}
.side.solutions {
  border-right: none;
  border-left: 1px solid var(--border);
  padding: 0;
}
.center {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}
.panes {
  flex: 1;
  min-height: 0;
  display: flex;
  overflow-x: auto;
}
.center-msg {
  flex: 1;
  display: grid;
  place-items: center;
}
.no-panes {
  margin: auto;
  text-align: center;
}

/* ---------- grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(5, var(--cell));
  grid-auto-rows: var(--cell);
  gap: max(1px, calc(var(--cell) / 14));
  width: max-content;
}
.cell {
  display: grid;
  place-items: center;
  border-radius: max(2px, calc(var(--cell) / 10));
  font-size: calc(var(--cell) * 0.46);
  line-height: 1;
  color: #fff;
  border: none;
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--sans);
  box-shadow: inset 0 0 0 1px #ffffff14;
}
button.cell {
  cursor: copy;
}
button.cell:hover {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.cell.off {
  outline: 2px dashed var(--bad);
  outline-offset: -2px;
}
.c-white {
  background: var(--c-white);
  color: #6b7280;
}
.c-black {
  background: var(--c-black);
}
.c-red {
  background: var(--c-red);
}
.c-green {
  background: var(--c-green);
}
.c-blue {
  background: var(--c-blue);
}
.c-yellow {
  background: var(--c-yellow);
}
.c-orange {
  background: var(--c-orange);
}
.c-brown {
  background: var(--c-brown);
}
.c-purple {
  background: var(--c-purple);
}

/* ---------- target panel ---------- */
.side.target {
  overflow-x: hidden;
  scrollbar-gutter: stable;
}
.target .grid {
  margin: 0 auto;
}
.hover-info {
  height: 22px;
  margin: 8px 0 4px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}
.hover-info .str {
  color: var(--syn-string);
}
.swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  vertical-align: -1px;
  box-shadow: inset 0 0 0 1px #8885;
}
.stats {
  display: grid;
  grid-template-columns: auto auto;
  justify-content: space-between;
  gap: 2px 12px;
  margin: 8px 0 12px;
  padding: 8px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats dt {
  color: var(--fg-faint);
}
.stats dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.ref h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  margin: 14px 0 4px;
}
.ref .sig {
  display: block;
  color: var(--syn-fn);
  font-size: 13px;
}
.ref ul {
  margin: 4px 0;
  padding-left: 16px;
  color: var(--fg-dim);
}
.ref ul.keys {
  list-style: none;
  padding: 0;
}
.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}
.swatch-btn {
  padding: 1px 6px;
  font-size: 12px;
  gap: 4px;
}

/* ---------- panes ---------- */
.pane {
  flex: 1 1 0;
  min-width: 380px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  border-top: 2px solid transparent;
}
.pane:last-child {
  border-right: none;
}
.panes.n1 .pane {
  min-width: 0;
}
.pane.focused {
  border-top-color: var(--accent);
}
.pane-head,
.pane-sub {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  white-space: nowrap;
  min-height: 34px;
}
.pane-head {
  padding-top: 6px;
}
.pane-sub {
  gap: 2px;
  padding-top: 0;
  border-bottom: 1px solid var(--border);
}
.pane-sub a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
}
.status-slot {
  display: inline-flex;
  width: 16px;
}
.pane-head .chars {
  font-size: 18px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  min-width: 6.5ch;
}
.pane-head .chars .faint {
  font-size: 12px;
  font-weight: 400;
}
.pane-head .ago {
  min-width: 5ch;
  text-align: right;
  font-size: 12px;
}
.note {
  font-size: 12px;
  color: var(--accent);
  margin-right: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.block {
  display: flex;
  flex-direction: column;
}
.block-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  padding: 6px 10px 0;
}
.block + .block {
  border-top: 1px dashed var(--border);
}
.editor {
  display: flex;
}
.editor > .cm-editor {
  flex: 1;
  min-width: 0;
}
.statusbar {
  display: flex;
  gap: 14px;
  padding: 3px 10px;
  font-size: 12px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-sunk);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
}
.statusbar b {
  color: var(--fg);
}
.run {
  display: flex;
  gap: 12px;
  padding: 10px;
  align-items: flex-start;
}
.run-grid {
  flex: none;
  text-align: center;
}
.run-caption {
  margin-top: 4px;
}
.console {
  flex: 1;
  min-width: 0;
  margin: 0;
  font: 12.5px/1.45 var(--mono);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 220px;
  overflow: auto;
  background: var(--bg-sunk);
  border-radius: 6px;
  padding: 6px 8px;
  min-height: 136px;
}

/* ---------- solutions list ---------- */
.side-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 8px 8px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 1;
}
.side-head h2 {
  font-size: 13px;
  margin: 0;
}
.seg {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.seg button {
  border: none;
  border-radius: 0;
  padding: 3px 6px;
  background: none;
  color: var(--fg-faint);
}
.seg button.on {
  background: var(--hover);
  color: var(--fg);
}
.pad {
  padding: 12px;
}
.sol-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
}
.sol-list li {
  display: flex;
  align-items: center;
  padding-left: calc(8px + var(--depth) * 14px);
  padding-right: 4px;
}
.sol-list li:hover {
  background: var(--hover);
}
.sol-list li.open {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
.sol-list a {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  color: var(--fg);
}
.sol-list a:visited {
  color: var(--fg-dim);
}
.sol-list li.mine .who {
  font-weight: 600;
}
.sol-list .chars {
  font-variant-numeric: tabular-nums;
  min-width: 3ch;
  text-align: right;
  font-weight: 600;
}
.sol-list .who {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sol-list .ago {
  font-size: 12px;
  min-width: 3ch;
  text-align: right;
}
.fork-mark {
  margin-left: -16px;
  flex: none;
}
.sol-list .beside {
  opacity: 0;
}
.sol-list li:hover .beside,
.sol-list .beside:focus-visible {
  opacity: 1;
}

/* ---------- REPL ---------- */
.repl {
  flex: none;
  border-top: 1px solid var(--border);
  background: var(--bg-sunk);
}
.repl-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px 2px 12px;
  cursor: pointer;
  font-size: 12px;
  color: var(--fg-dim);
  user-select: none;
}
.repl-body {
  display: flex;
  height: 220px;
  border-top: 1px solid var(--border);
}
.repl-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.repl-log {
  flex: 1;
  overflow: auto;
  padding: 6px 12px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 12.5px;
}
.rl-in::before {
  content: attr(data-prompt) " ";
  color: var(--fg-faint);
}
.rl-in {
  color: var(--fg-dim);
}
.rl-err {
  color: var(--bad);
}
.rl-info {
  color: var(--fg-faint);
  font-style: italic;
}
.repl-input {
  display: flex;
  gap: 6px;
  padding: 4px 12px 6px;
  border-top: 1px solid var(--border);
}
.repl-input .prompt {
  color: var(--accent);
  font-size: 12.5px;
  padding-top: 2px;
}
.repl-input textarea {
  flex: 1;
  resize: none;
  background: transparent;
  border: none;
  color: var(--fg);
  font: 12.5px/1.45 var(--mono);
  outline: none;
  padding: 2px 0;
}
.repl-grid {
  padding: 10px;
  border-left: 1px solid var(--border);
}

/* ---------- archive ---------- */
.archive {
  flex: 1;
  overflow: auto;
  padding: 16px max(16px, calc((100vw - 1200px) / 2));
}
.archive h1 {
  font-size: 20px;
  margin: 0 0 4px;
}
.archive-grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.archive-grid a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 10px 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--fg);
  text-align: center;
}
.archive-grid a:visited {
  color: var(--fg);
}
.archive-grid a:hover {
  background: var(--hover);
  text-decoration: none;
}
.archive-grid a.solved {
  border-color: color-mix(in srgb, var(--ok) 50%, var(--border));
}
.archive-grid .grid {
  margin-bottom: 4px;
}
.a-name {
  font-weight: 600;
  font-size: 13px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.a-meta {
  font-size: 11px;
}
.a-score {
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

/* ---------- narrow screens ---------- */
@media (max-width: 1100px) {
  .work {
    grid-template-columns: 250px minmax(0, 1fr);
  }
  .side.solutions {
    grid-column: 1;
    grid-row: 2;
    border-left: none;
    border-right: 1px solid var(--border);
    border-top: 1px solid var(--border);
  }
  .side.target {
    grid-row: 1;
  }
  .center {
    grid-column: 2;
    grid-row: 1 / span 2;
  }
  .target .grid {
    --cell: 40px !important;
  }
}
@media (max-width: 720px) {
  html,
  body,
  #app {
    height: auto;
  }
  .work {
    display: flex;
    flex-direction: column;
  }
  .side {
    border-right: none !important;
    border-bottom: 1px solid var(--border);
  }
  .side.target {
    order: 0;
  }
  .center {
    order: 1;
  }
  .side.solutions {
    order: 2;
  }
  .panes {
    flex-direction: column;
    overflow: visible;
  }
  .pane {
    min-width: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow: visible;
  }
  .top {
    flex-wrap: wrap;
    padding: 6px 16px;
  }
  .puzzle-nav {
    order: 3;
    width: 100%;
  }
  .target .ref {
    display: none;
  }
}

/* ---------- languages ---------- */
.lang-seg {
  margin-right: 8px;
}
.lang-seg button {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
}
.lang-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0 4px;
  border-radius: 4px;
  color: var(--syn-def);
  border: 1px solid color-mix(in srgb, var(--syn-def) 45%, transparent);
  margin-right: 6px;
  flex: none;
}
.sol-list .lang-badge {
  margin-right: 0;
}

/* ---------- overview ---------- */
.archive h2 {
  font-size: 15px;
  margin: 28px 0 8px;
}
.today {
  display: flex;
  gap: 24px;
  align-items: center;
  margin: 8px 0 8px;
}
.today .card {
  flex: none;
  padding: 16px 20px;
}
.today h1 {
  margin: 0 0 6px;
}
.today p {
  margin: 4px 0;
  max-width: 52ch;
}
.archive-grid .new-card {
  justify-content: center;
  color: var(--fg-dim);
  border-style: dashed;
  min-height: 100%;
}
.archive-grid .new-card:visited {
  color: var(--fg-dim);
}
.card.big .a-name {
  font-size: 15px;
}
.card.big {
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--fg);
}
.card.big:visited {
  color: var(--fg);
}
.card.big:hover {
  background: var(--hover);
  text-decoration: none;
}
.card.big.solved {
  border-color: color-mix(in srgb, var(--ok) 50%, var(--border));
}
.remix {
  display: block;
  margin: -4px 0 4px;
}
@media (max-width: 720px) {
  .today {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ---------- creator ---------- */
.creator {
  flex: 1;
  overflow: auto;
  padding: 16px max(16px, calc((100vw - 1000px) / 2));
}
.creator h1 {
  font-size: 20px;
  margin: 0 0 12px;
}
.creator h3 {
  font-size: 13px;
  margin: 24px 0 6px;
}
.creator-cols {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.name-input,
.url-input,
.char-input {
  font: inherit;
  color: var(--fg);
  background: var(--bg-sunk);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
}
.name-input {
  width: 100%;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}
.url-input {
  flex: 1;
  min-width: 0;
}
.char-input {
  width: 5ch;
  text-align: center;
}
.name-input:focus,
.url-input:focus,
.char-input:focus {
  outline: none;
  border-color: var(--accent);
}
.paint-grid {
  display: grid;
  grid-template-columns: repeat(5, 64px);
  grid-auto-rows: 64px;
  gap: 5px;
  --cell: 64px;
  user-select: none;
  touch-action: none;
}
.paint-grid .cell {
  cursor: crosshair;
}
.paint-grid .cell:hover {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.row {
  display: flex;
  align-items: center;
}
.row.gap {
  gap: 8px;
  margin-top: 12px;
}
button.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
  font-weight: 600;
}
button.primary:hover:not(:disabled) {
  background: color-mix(in srgb, var(--accent) 85%, #fff);
  border-color: var(--accent);
}
.mode-seg {
  margin-bottom: 12px;
}
.mode-seg button {
  padding: 4px 12px;
  gap: 6px;
}
.swatch-btn.on {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}
.brush .swatches {
  margin-bottom: 12px;
}
.brush p {
  margin: 8px 0 0;
}
.code-box {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 8px;
}
@media (max-width: 720px) {
  .creator-cols {
    grid-template-columns: minmax(0, 1fr);
  }
  .paint-grid {
    grid-template-columns: repeat(5, 54px);
    grid-auto-rows: 54px;
    --cell: 54px;
  }
}

/* ---------- history ---------- */
.history {
  border-bottom: 1px solid var(--border);
  background: var(--bg-sunk);
  max-height: 260px;
  overflow: auto;
  padding: 4px 0;
}
.history ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
.history p {
  margin: 4px 10px;
}
.rev-row {
  display: flex;
  align-items: center;
  padding-right: 6px;
}
.rev-row:hover {
  background: var(--hover);
}
.rev-main {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  border-radius: 0;
  padding: 3px 10px;
  justify-content: flex-start;
  gap: 8px;
  font-size: 12.5px;
}
.rev-main .chars {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  min-width: 3ch;
  text-align: right;
}
.rev-code {
  margin: 2px 10px 6px 34px;
  padding: 6px 8px;
  font: 12px/1.45 var(--mono);
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--bg);
  border-radius: 6px;
}

.repl-head .lang-seg {
  margin-left: 6px;
}

.sol-list .copies {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.pane-sub .twin {
  font-size: 12px;
  margin-left: 8px;
  white-space: nowrap;
}

/* ---------- menus ---------- */
.menu-wrap {
  position: relative;
}
.menu {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  z-index: 30;
  min-width: 180px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  box-shadow: 0 8px 30px #0006;
  display: flex;
  flex-direction: column;
}
.menu button {
  border: none;
  background: none;
  border-radius: 5px;
  padding: 5px 8px;
  justify-content: flex-start;
  gap: 8px;
  font-size: 13px;
  white-space: nowrap;
}
.menu button:hover:not(:disabled) {
  background: var(--hover);
}
.menu button.danger {
  color: var(--bad);
}
.menu kbd {
  color: var(--fg-faint);
}
.pane-head .close {
  margin-right: -4px;
}
.pane-head {
  cursor: default;
}
.menu button .grow {
  text-align: left;
}

/* ---------- console values (like DevTools) ---------- */
:root {
  --iv-string: #f28b54;
  --iv-number: #9980ff;
  --iv-key: #7cacf8;
  --iv-null: #868e96;
  --iv-fn: #f6c177;
  --warn-bg: #3b2f0a66;
  --error-bg: #4a161666;
}
@media (prefers-color-scheme: light) {
  :root {
    --iv-string: #c41a16;
    --iv-number: #1c00cf;
    --iv-key: #881391;
    --iv-null: #80868b;
    --iv-fn: #994500;
    --warn-bg: #fff8e1;
    --error-bg: #fdecec;
  }
}
.repl-body {
  height: 260px;
  resize: vertical;
  overflow: hidden;
  min-height: 120px;
}
.repl-log .rl {
  padding: 2px 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
  white-space: pre-wrap;
  word-break: break-word;
  display: flex;
  gap: 6px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.rl-in::before {
  color: var(--accent);
}
.rl-warn {
  background: var(--warn-bg);
  color: var(--warn);
}
.rl-error,
.rl-err {
  background: var(--error-bg);
  color: var(--bad);
}
.rl-debug {
  color: var(--fg-faint);
}
.rl-result .rl-mark,
.rl-error .rl-mark {
  color: var(--fg-faint);
  flex: none;
}
.rl-group {
  font-weight: 600;
  align-items: center;
}
.rl-arg + .rl-arg {
  margin-left: 2px;
}
.iv-wrap {
  display: inline-flex;
  flex-direction: column;
  vertical-align: top;
}
.iv-wrap.dim {
  opacity: 0.7;
}
.iv-line {
  display: inline-flex;
  align-items: center;
}
.iv-line.expandable {
  cursor: pointer;
}
.iv-line.expandable:hover {
  background: var(--hover);
}
.iv-arrow {
  display: inline-flex;
  width: 12px;
  flex: none;
  color: var(--fg-faint);
}
.iv-children {
  display: flex;
  flex-direction: column;
  padding-left: 14px;
}
.iv-key {
  color: var(--iv-key);
}
.iv-string {
  color: var(--iv-string);
}
.iv-number,
.iv-bigint,
.iv-boolean {
  color: var(--iv-number);
}
.iv-null,
.iv-undefined {
  color: var(--iv-null);
}
.iv-function {
  color: var(--iv-fn);
  font-style: italic;
}
.iv-symbol,
.iv-regexp {
  color: var(--iv-string);
}
.iv-error {
  color: var(--bad);
}
.iv-stack {
  display: flex;
  flex-direction: column;
  padding-left: 16px;
  color: var(--fg-faint);
}
.iv-table {
  border-collapse: collapse;
  font-size: 12px;
  margin: 2px 0;
}
.iv-table th,
.iv-table td {
  border: 1px solid var(--border);
  padding: 1px 8px;
  text-align: left;
  vertical-align: top;
}
.iv-table th {
  background: var(--bg-raised);
  font-weight: 600;
}
.repl-input {
  align-items: flex-start;
}
.repl-input-col {
  flex: 1;
  min-width: 0;
}
.repl-cm {
  min-height: 1.45em;
}
.repl-preview {
  min-height: 1.45em;
  font-size: 12px;
  opacity: 0.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- wrong cells ---------- */
.cell.off {
  outline: none;
  /* a ring outside the cell: page background, then foreground, so it shows on every colour */
  box-shadow:
    0 0 0 2px var(--bg),
    0 0 0 4px var(--fg);
  position: relative;
  z-index: 1;
  color: #fff;
  text-shadow: 0 0 2px #000, 0 0 2px #000;
}
.cell .want-char {
  position: absolute;
  right: 1px;
  bottom: 0;
  font-size: calc(var(--cell) * 0.3);
  line-height: 1;
  opacity: 0.95;
}
.grid.hoverable .cell {
  cursor: pointer;
}
.grid.hoverable.has-off:hover .cell:not(.off) {
  opacity: 0.3;
}
.grid.hoverable .cell:hover {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  z-index: 2;
}
.run-info {
  min-height: 2.6em;
  padding: 0 10px 10px;
  line-height: 1.3;
}

/* ---------- hidden sidebars ---------- */
.sidebar-toggles {
  display: flex;
  gap: 2px;
}
.work.no-left {
  grid-template-columns: minmax(0, 1fr) 260px;
}
.work.no-right {
  grid-template-columns: 300px minmax(0, 1fr);
}
.work.no-left.no-right {
  grid-template-columns: minmax(0, 1fr);
}
@media (max-width: 1100px) {
  /* narrow: both sidebars share the left column; the one left over takes all of it */
  .work.no-left,
  .work.no-right {
    grid-template-columns: 250px minmax(0, 1fr);
  }
  .work.no-left .side.solutions,
  .work.no-right .side.target {
    grid-row: 1 / span 2;
  }
  .work.no-left.no-right {
    grid-template-columns: minmax(0, 1fr);
  }
  .work.no-left.no-right .center {
    grid-column: 1;
  }
}