.codebreak-shell {
  --game-accent: var(--g-codebreak);
  --cb-0: #d0504d;
  --cb-1: #e0a030;
  --cb-2: #3a8fb0;
  --cb-3: #6a64c0;
  --cb-4: #4f9a63;
  --cb-5: #c06aa6;
  --cb-6: #5e7586;
  --cb-7: #a8703f;
  --cb-row: var(--surface-2);
  --cb-slot: var(--surface-2);
}
:root[data-theme='dark'] .codebreak-shell {
  --cb-0: #e0625e;
  --cb-1: #e8ae45;
  --cb-2: #4ba3c6;
  --cb-3: #8580db;
  --cb-4: #5fb275;
  --cb-5: #d07cb8;
  --cb-6: #7d93a3;
  --cb-7: #c08655;
  --cb-row: #1c1c1c;
  --cb-slot: #242424;
}
.codebreak-shell .shell-stage {
  justify-content: stretch;
  padding: var(--space-2) var(--space-4) 0;
}
.codebreak-shell .shell-board-area {
  display: flex;
  flex: 1;
  width: 100%;
  min-height: 0;
  justify-content: center;
}
.codebreak-shell .cb-board {
  --peg-size: min(38px, calc((100vw - 150px) / var(--len)));
  display: flex;
  width: min(440px, 100%);
  min-height: 0;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-2);
}
.codebreak-shell .cb-history {
  display: grid;
  min-height: 0;
  gap: 6px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}
.codebreak-shell .cb-row {
  display: grid;
  grid-template-columns: 24px auto 40px;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 6px var(--space-3);
  border-radius: 14px;
  background: var(--cb-row);
}
.codebreak-shell .cb-row.given {
  box-shadow: inset 3px 0 0 var(--game-accent);
}
.codebreak-shell .cb-row.placeholder {
  opacity: 0.55;
}
.codebreak-shell .cb-row.just-set {
  animation: cb-row-in 260ms ease-out;
}
@keyframes cb-row-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}
.codebreak-shell .cb-index {
  color: var(--text-muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.codebreak-shell .cb-code {
  display: flex;
  gap: 6px;
}
.codebreak-shell .cb-peg,
.codebreak-shell .cb-slot,
.codebreak-shell .cb-color {
  display: grid;
  place-items: center;
  flex: none;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--peg);
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 1px 1px rgb(0 0 0 / 0.25);
}
.codebreak-shell .cb-peg {
  width: var(--peg-size);
  height: var(--peg-size);
  font-size: calc(var(--peg-size) * 0.36);
  box-shadow: inset 0 -2px 0 rgb(0 0 0 / 0.15);
}
.codebreak-shell .cb-peg.empty {
  border: 2px dashed var(--line);
  background: transparent;
  box-shadow: none;
}
.codebreak-shell .c0 {
  --peg: var(--cb-0);
}
.codebreak-shell .c1 {
  --peg: var(--cb-1);
}
.codebreak-shell .c2 {
  --peg: var(--cb-2);
}
.codebreak-shell .c3 {
  --peg: var(--cb-3);
}
.codebreak-shell .c4 {
  --peg: var(--cb-4);
}
.codebreak-shell .c5 {
  --peg: var(--cb-5);
}
.codebreak-shell .c6 {
  --peg: var(--cb-6);
}
.codebreak-shell .c7 {
  --peg: var(--cb-7);
}
/* Feedback keys: solid = right colour and place, ring = right colour elsewhere. */
.cb-keys {
  display: grid;
  grid-template-columns: repeat(var(--key-cols, 2), 11px);
  gap: 4px;
  justify-content: center;
}
.cb-keys i {
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--line);
}
.cb-keys i.exact {
  background: var(--text);
}
.cb-keys i.near {
  border: 2px solid var(--text);
  background: transparent;
}
.shell-rules-example .cb-demo {
  grid-template-columns: repeat(2, 18px);
  gap: 8px;
}
.shell-rules-example .cb-demo i {
  width: 18px;
  height: 18px;
}
.codebreak-shell .cb-empty,
.codebreak-shell .cb-status {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}
.codebreak-shell .cb-status strong {
  color: var(--text);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}
.codebreak-shell .cb-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 2px solid var(--line);
  border-radius: 14px;
  color: var(--text-muted);
  font-size: 13px;
}
.codebreak-shell .cb-answer.won {
  border-color: var(--success);
  color: var(--success);
  font-weight: 700;
}
.codebreak-shell .shell-result .cb-answer {
  --peg-size: 40px;
  margin: 0 auto var(--space-4);
  border: 0;
}
/* Entry: the code being built, the colour keys and (for imported puzzles) the feedback steppers. */
.codebreak-shell .shell-input {
  padding: var(--space-2) var(--space-4) var(--space-3);
}
.codebreak-shell .cb-entry {
  display: grid;
  width: min(440px, 100%);
  gap: 10px;
}
.codebreak-shell .cb-draft-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}
.codebreak-shell .cb-draft {
  display: flex;
  gap: 8px;
}
.codebreak-shell .cb-slot {
  --slot: min(50px, calc((100vw - 170px) / var(--slots, 5)));
  width: var(--slot);
  height: var(--slot);
  font-size: 17px;
  cursor: pointer;
  transition: transform 120ms ease-out;
}
.codebreak-shell .cb-slot.empty {
  border: 2px dashed var(--line);
  background: var(--cb-slot);
}
.codebreak-shell .cb-slot.selected {
  outline: 3px solid var(--text);
  outline-offset: 2px;
}
.codebreak-shell .cb-slot:active {
  transform: scale(0.94);
}
.codebreak-shell .cb-submit {
  display: inline-flex;
  height: 48px;
  align-items: center;
  gap: 4px;
  padding: 0 14px 0 10px;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: var(--on-primary);
  font: 700 15px var(--font-app);
  white-space: nowrap;
  cursor: pointer;
}
.codebreak-shell .cb-submit svg {
  width: 20px;
  height: 20px;
}
.codebreak-shell .cb-submit:disabled {
  opacity: 0.3;
  cursor: default;
}
/* The colour keys sit where the shared toast would appear, so notices float under the app bar. */
.codebreak-shell .shell-toast {
  top: calc(64px + env(safe-area-inset-top));
  bottom: auto;
}
.codebreak-shell .cb-palette {
  display: grid;
  grid-template-columns: repeat(var(--colors), minmax(0, 52px));
  justify-content: center;
  gap: 6px;
}
.codebreak-shell .cb-color {
  width: 100%;
  aspect-ratio: 1;
  max-height: 48px;
  margin: 0 auto;
  font-size: 15px;
  box-shadow: inset 0 -3px 0 rgb(0 0 0 / 0.18);
  cursor: pointer;
  transition:
    opacity 160ms ease-out,
    transform 120ms ease-out;
}
.codebreak-shell .cb-color:active {
  transform: scale(0.92);
}
/* Assist: colours ruled out for the selected position fade and get a strike. */
.codebreak-shell .cb-color.ruled {
  opacity: 0.28;
  background-image: linear-gradient(135deg, transparent 46%, rgb(255 255 255 / 0.9) 46% 54%, transparent 54%);
}
.codebreak-shell .cb-warning {
  margin: 0;
  color: var(--danger);
  font-size: 13px;
  text-align: center;
}
.codebreak-shell .cb-feedback-entry {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}
.codebreak-shell .cb-stepper {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  font-size: 13px;
}
.codebreak-shell .cb-stepper b {
  min-width: 14px;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}
.codebreak-shell .cb-stepper button {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--segment-on);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
}
@media (prefers-reduced-motion: reduce) {
  .codebreak-shell .cb-row.just-set {
    animation: none;
  }
}

/* Screenshot review: rows whose feedback the recogniser could not read wait for the player's numbers. */
.codebreak-image-review .codebreak-image-row.needs-feedback {
  border-color: var(--danger);
  box-shadow: inset 3px 0 0 var(--danger);
}
.codebreak-image-review .codebreak-image-feedback input.needs-value {
  border-color: var(--danger);
  outline: 2px solid color-mix(in srgb, var(--danger) 35%, transparent);
  outline-offset: 0;
}
.codebreak-image-review .codebreak-image-feedback input.needs-value::placeholder {
  color: var(--danger);
  opacity: 0.85;
}
.codebreak-image-review .codebreak-image-unread {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--danger);
}
.codebreak-image-review .codebreak-image-unread.done {
  font-weight: 400;
  color: var(--success);
}