* {
  box-sizing: border-box;
}

:root {
  --bg: #f8f4ec;
  --paper: #fffdf8;
  --ink: #172a2f;
  --muted: #4f6368;
  --line: #d5d1c6;
  --accent: #1f7a5a;
  --accent-2: #c94c33;
  --player-p1: #c2452f;
  --player-p2: #2d67c7;
  --player-both: #7b53ab;
  /* Blue-green complement to warm paper/cream; distinct from --accent (source/hover) and from P1/P2. */
  --move-selection-ring: #0d6b56;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 20% 10%, #fdf5df 0%, transparent 30%),
    radial-gradient(circle at 85% 90%, #e8f0ff 0%, transparent 34%),
    var(--bg);
  color: var(--ink);
}

.layout {
  width: min(1500px, 96vw);
  margin: 1.25rem auto 2rem;
  padding: 1rem;
}

.hero {
  background: linear-gradient(110deg, #f7f2e7 0%, #e5efe9 100%);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.board-preview-label {
  margin: 0.35rem 0 0.75rem;
  color: var(--ink);
  /* Line height matches inline chips so coordinate tokens don’t grow the line box. */
  line-height: 1.45;
  min-height: calc(2 * 1.45em);
  font-size: 1.3rem;
}

@media (max-width: 430px) {
  .board-preview-label {
    font-size: 1.15rem;
  }
}

/* Chips share one fixed em height so preview label block height stays stable with or without tokens. */
.board-preview-coordinate-chip,
.board-preview-highlight-chip,
.board-preview-retreat-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1.45em;
  padding: 0 0.42rem;
  box-sizing: border-box;
  vertical-align: middle;
  line-height: 1;
  font-size: 0.9em;
  border-radius: 999px;
}

.board-preview-highlight-chip {
  border: 1px solid #c7db9f;
  background: #e6f2d3;
}

.board-preview-retreat-chip {
  border: 1px solid #d1b06a;
  background: #f3e7c5;
  color: #72531a;
}

.board-preview-coordinate-chip {
  border: 1px solid #cac7bd;
  background: #fbf8f0;
  color: var(--ink);
}

.board-preview-coordinate-chip-neutral {
  background: #fbf8f0;
  border-color: #cac7bd;
  color: var(--ink);
}

/* Selected piece square: fill + teal ring like the board cell; coordinate text = piece owner (token color). */
.board-preview-coordinate-chip.board-preview-coordinate-chip-selected-piece {
  background: #fbf8f0;
  border-color: var(--move-selection-ring);
}

.board-preview-coordinate-chip-selected-piece.board-preview-coordinate-chip-selected-piece-p1 {
  color: var(--player-p1);
}

.board-preview-coordinate-chip-selected-piece.board-preview-coordinate-chip-selected-piece-p2 {
  color: var(--player-p2);
}

.board-preview-coordinate-chip-selected-piece.board-preview-coordinate-chip-selected-piece-neutral {
  color: var(--move-selection-ring);
}

.board-preview-coordinate-chip-target {
  background: #fbefeb;
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.board-preview-coordinate-chip-target.board-preview-coordinate-chip-side-p1 {
  background: rgba(194, 69, 47, 0.12);
  border-color: rgba(194, 69, 47, 0.45);
  color: var(--player-p1);
}

.board-preview-coordinate-chip-target.board-preview-coordinate-chip-side-p2 {
  background: rgba(45, 103, 199, 0.12);
  border-color: rgba(45, 103, 199, 0.45);
  color: var(--player-p2);
}

.board-preview-coordinate-chip-target.board-preview-coordinate-chip-side-neutral {
  background: #fbefeb;
  border-color: var(--accent-2);
  color: var(--accent-2);
}

/* Push retreat actor: same palette as .cell.retreat-piece / .board-preview-retreat-chip (not square-highlight green). */
.board-preview-coordinate-chip.board-preview-coordinate-chip-retreat {
  border-color: #d1b06a;
  background: #f3e7c5;
  color: #72531a;
}

/* Rush / push follow continuation actors: match side-to-move (preview arrows), not generic green. */
.board-preview-coordinate-chip-continuation-pending.board-preview-coordinate-chip-side-p1 {
  background: rgba(194, 69, 47, 0.12);
  border-color: rgba(194, 69, 47, 0.4);
  color: var(--player-p1);
}

.board-preview-coordinate-chip-continuation-pending.board-preview-coordinate-chip-side-p2 {
  background: rgba(45, 103, 199, 0.12);
  border-color: rgba(45, 103, 199, 0.4);
  color: var(--player-p2);
}

.board-preview-coordinate-chip-continuation-pending.board-preview-coordinate-chip-side-neutral {
  background: #e6f2d3;
  border-color: #c7db9f;
  color: var(--ink);
}

.board-preview-coordinate-chip-continuation-moved.board-preview-coordinate-chip-side-p1 {
  background: rgba(194, 69, 47, 0.07);
  border-color: rgba(194, 69, 47, 0.26);
  color: rgba(194, 69, 47, 0.82);
}

.board-preview-coordinate-chip-continuation-moved.board-preview-coordinate-chip-side-p2 {
  background: rgba(45, 103, 199, 0.07);
  border-color: rgba(45, 103, 199, 0.26);
  color: rgba(45, 103, 199, 0.82);
}

.board-preview-coordinate-chip-continuation-moved.board-preview-coordinate-chip-side-neutral {
  background: #f5f7ef;
  border-color: #d7dec9;
  color: var(--muted);
}

.board-preview-coordinate-chip.board-preview-coordinate-chip-rush-blocker {
  background: #f7ead4;
  border-color: #cf9542;
  color: #8a5712;
}

/* Destruction-highlight chip: dark crimson palette, distinct from continuation (player-toned)
   and selection chips (teal/green). Used for the square where a piece was destroyed.
   Per RIGHELT_WEB_APP_SPEC §1.1.4: new square-highlight role → matching coordinate chip treatment. */
.board-preview-coordinate-chip.board-preview-coordinate-chip-destruction {
  background: #f5e6e6;
  border-color: #b03030;
  color: #7a1a1a;
}

.board-preview-inline-button {
  display: inline-block;
  margin: 0 0 0.1rem;
  padding: 0.08rem 0.45rem 0.18rem;
  border-radius: 999px;
  border: 1px solid #b9c4cd;
  background: #fffdf8;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
  vertical-align: baseline;
}

.board-preview-label .board-preview-inline-button {
  display: inline-flex;
  align-items: center;
  height: 1.45em;
  margin: 0 0.1rem 0 0;
  padding: 0 0.42rem;
  box-sizing: border-box;
  vertical-align: middle;
  font-size: 0.88em;
}

[data-hover-capability="hover"] .board-preview-inline-button:hover {
  border-color: var(--accent);
}

.player-tone-p1 {
  color: var(--player-p1);
}

.player-tone-p2 {
  color: var(--player-p2);
}

.player-tone-both {
  color: var(--player-both);
}

.player-tone-neutral {
  color: var(--muted);
}

button {
  border: 1px solid transparent;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.secondary {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 0.85fr 2.1fr 1fr;
}

.log-column,
.middle-column,
.right-column {
  display: grid;
  gap: 1rem;
  align-content: start;
  min-width: 0;
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  min-width: 0;
}

.panel h2 {
  margin-top: 0;
}

.board-heading {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.board-heading-separator {
  color: var(--muted);
}

.board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(10, minmax(28px, 1fr));
  gap: 4px;
}

.board-wrap {
  position: relative;
  padding-bottom: 1rem;
  transform-origin: 50% 45%;
}

.board-wrap.history-board-pressing {
  transform: translateY(1px) scale(0.986);
  filter: saturate(0.94);
}

.board-wrap.history-board-release {
  animation: history-board-release 140ms cubic-bezier(0.18, 0.72, 0.24, 1);
}

@keyframes history-board-release {
  0% {
    transform: translateY(1px) scale(0.986);
    filter: saturate(0.94);
  }

  55% {
    transform: translateY(-3px) scale(1.006);
    filter: saturate(1.01);
  }

  100% {
    transform: translateY(0) scale(1);
    filter: none;
  }
}

.overlay-lines {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 1rem;
  left: 0;
  pointer-events: none;
  overflow: visible;
}

@media (prefers-reduced-motion: reduce) {
  .board-wrap.history-board-pressing,
  .board-wrap {
    transform: none;
    filter: none;
  }

  .board-wrap.history-board-release {
    animation: none;
  }
}

.cell {
  --cell-fill: #fbf8f0;
  position: relative;
  display: grid;
  place-items: center;
  min-height: 52px;
  padding: 4px;
  border-radius: 6px;
  border: 1px solid #cac7bd;
  color: var(--ink);
  background: var(--cell-fill);
}

/* Do not override border on source/target: they use border + inset shadow as one ring; changing
   only border-color here produced a second color on hover (green border, red/pink inset). */
[data-hover-capability="hover"]
  .board[data-interaction-mode="interactive"]
  .cell:not(.unselectable):not(.source):not(.target):hover {
  border-color: var(--accent);
}

.cell.unselectable {
  cursor: default;
}

.board[data-interaction-mode="static"] .cell {
  cursor: default;
}

.cell.source {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.cell.target {
  border-color: var(--accent-2);
  box-shadow: inset 0 0 0 1px var(--accent-2);
}

.cell.target.target-side-p1:not(.continuation-member) {
  border-color: var(--player-p1);
  box-shadow: inset 0 0 0 1px var(--player-p1);
}

.cell.target.target-side-p2:not(.continuation-member) {
  border-color: var(--player-p2);
  box-shadow: inset 0 0 0 1px var(--player-p2);
}

.cell.removal-effect::after {
  content: attr(data-removal-label);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  background: #3d1515;
  color: #fff4f4;
  border: 1px solid #d04a4a;
  border-radius: 6px;
  padding: 4px 7px;
  font-size: 0.68rem;
  line-height: 1.25;
  white-space: nowrap;
  z-index: 6;
  pointer-events: none;
}

.cell.disallowed-preview::before {
  content: "";
  position: absolute;
  inset: 2px;
  z-index: 3;
  pointer-events: none;
  background:
    linear-gradient(45deg, transparent 48.5%, #8f0f0f 49%, #8f0f0f 51%, transparent 51.5%),
    linear-gradient(-45deg, transparent 48.5%, #8f0f0f 49%, #8f0f0f 51%, transparent 51.5%);
  opacity: 0.9;
}

.cell.target.disallowed-target::after {
  content: attr(data-disallow-reason);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  background: #2f2222;
  color: #fff4f4;
  border: 1px solid #8f0f0f;
  border-radius: 6px;
  padding: 4px 7px;
  font-size: 0.68rem;
  line-height: 1.25;
  white-space: nowrap;
  z-index: 5;
  pointer-events: none;
}

.cell.group-member {
  --cell-fill: #eef8f1;
}

.cell.continuation-member {
  transition: background-color 120ms ease;
}

.cell.continuation-moved {
  --cell-fill: #f5f7ef;
}

.cell.continuation-pending {
  --cell-fill: #e6f2d3;
}

.cell.rush-blocker {
  --cell-fill: #f7ead4;
  border-color: #cf9542;
  box-shadow: inset 0 0 0 1px #cf9542;
}

.cell.retreat-piece {
  --cell-fill: #f3e7c5;
  border-color: #d1b06a;
  box-shadow: inset 0 0 0 1px #d1b06a;
}

.cell.selected-piece {
  border-color: var(--move-selection-ring);
  box-shadow: inset 0 0 0 1px var(--move-selection-ring);
}

.cell.selected-piece.inactive-selected-piece::after {
  content: attr(data-inactive-label);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  background: #2f2222;
  color: #fff4f4;
  border: 1px solid #7f6d31;
  border-radius: 6px;
  padding: 4px 7px;
  font-size: 0.68rem;
  line-height: 1.25;
  white-space: nowrap;
  z-index: 6;
  pointer-events: none;
}

.group-strength-badge {
  position: absolute;
  top: -6px;
  left: -6px;
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 1;
  color: #0b3122;
  background: #bde7cc;
  border: 1px solid #6ab084;
  border-radius: 999px;
  padding: 1px 5px;
}

.move-ghost {
  position: absolute;
  inset: 0;
  margin: auto;
  pointer-events: none;
}

.piece-token.move-ghost {
  position: absolute;
  z-index: 0;
}

.piece-token.preview-created::after {
  content: "+";
  position: absolute;
  top: -7px;
  right: -8px;
  z-index: 3;
  width: 12px;
  height: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #fffdf8;
  color: #4f6368;
  border: 1px solid #b9c4cd;
  font-size: 0.62rem;
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}

.overlay-key {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  margin-right: 0.35rem;
  vertical-align: -2px;
  border: 1px solid transparent;
}

.swatch.supply,
.swatch.command {
  position: relative;
  width: 16px;
  height: 10px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.swatch.supply {
  color: #2f8e63;
}

.swatch.command {
  color: var(--swatch-command-color, var(--player-p1));
}

.swatch.supply::before,
.swatch.command::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  border-top: 3px dashed currentColor;
}

.swatch.move {
  background: #8b5ec0;
}

.swatch.move-blocked {
  position: relative;
  background: #8b5ec0;
}

.swatch.move-blocked::before,
.swatch.move-blocked::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 1px;
  width: 10px;
  height: 2px;
  background: #7a1616;
  border-radius: 2px;
}

.swatch.move-blocked::before {
  transform: rotate(35deg);
}

.swatch.move-blocked::after {
  transform: rotate(-35deg);
}

.swatch.group {
  background: #bde7cc;
  border-color: #6ab084;
}

.swatch.supply-point {
  background: #2f8e63;
  border-color: #1f6a49;
  transform: rotate(45deg);
  border-radius: 2px;
}

.piece-token {
  position: relative;
  z-index: 1;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-weight: 800;
  color: #ffffff;
  border: 2px solid transparent;
}

.piece-stack {
  position: relative;
  width: 28px;
  height: 28px;
  display: inline-block;
}

.piece-stack .piece-token {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.piece-token.stacked-pushed {
  opacity: 0.9;
}

.piece-token.stacked-underlay {
  transform: translate(-28%, -18%);
  z-index: 0;
}

.piece-token.stacked-top {
  z-index: 1;
}

.piece-token.p1 {
  background: var(--player-p1);
  border-color: var(--player-p1);
}

.piece-token.p2 {
  background: var(--player-p2);
  border-color: var(--player-p2);
}

.piece-token.commander {
  border-color: #f6e58d;
}

.piece-token.inactive {
  background: var(--cell-fill, #fbf8f0);
  color: #2f3f4a;
  border-width: 2px;
}

.piece-token.ghost {
  opacity: 0.35;
}

.cell.target .piece-token.move-ghost {
  opacity: 0.7;
}

.piece-token.removal-piece {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  animation: removal-piece-flash 0.48s ease-in-out 5 alternate;
  animation-fill-mode: forwards;
  pointer-events: none;
}

.piece-token.history-destruction-piece {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.46);
  pointer-events: none;
}

.piece-token.history-destruction-piece.p1 {
  --destroyed-cut-border: rgba(194, 69, 47, 0.46);
  background: rgba(194, 69, 47, 0.46);
  border-color: rgba(194, 69, 47, 0.46);
}

.piece-token.history-destruction-piece.p2 {
  --destroyed-cut-border: rgba(45, 103, 199, 0.46);
  background: rgba(45, 103, 199, 0.46);
  border-color: rgba(45, 103, 199, 0.46);
}

.piece-token.history-destruction-piece.inactive {
  background: var(--cell-fill, #fbf8f0);
}

.piece-token.history-destruction-piece.inactive.p1 {
  border-color: rgba(194, 69, 47, 0.46);
}

.piece-token.history-destruction-piece.inactive.p2 {
  border-color: rgba(45, 103, 199, 0.46);
}

.piece-token.history-destruction-piece.commander {
  border-color: rgba(246, 229, 141, 0.46);
}

.piece-token.history-destruction-piece::before {
  content: "";
  position: absolute;
  z-index: 3;
  left: 50%;
  top: 50%;
  width: 1.5px;
  height: 36px;
  background: var(--destroyed-cut-border, transparent);
  border-radius: 999px;
  box-shadow:
    -3.5px 0 0 var(--destroyed-cut-border, transparent),
    3.5px 0 0 var(--destroyed-cut-border, transparent);
  transform: translate(-50%, -50%) rotate(45deg);
  transform-origin: center;
}

.piece-token.history-destruction-piece::after {
  content: "";
  position: absolute;
  z-index: 4;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 34px;
  background: #ffffff;
  border-radius: 999px;
  transform: translate(-50%, -50%) rotate(45deg);
  transform-origin: center;
}

@keyframes removal-piece-flash {
  from {
    opacity: 1;
  }

  to {
    opacity: 0.08;
  }
}

.piece-token.move-ghost.illegal-unsupplied::before,
.piece-token.move-ghost.illegal-unsupplied::after {
  content: "";
  position: absolute;
  left: -1px;
  top: 7px;
  width: 22px;
  height: 3px;
  background: #8f0f0f;
  box-shadow: 0 0 0 1px rgba(255, 244, 244, 0.8);
  border-radius: 2px;
}

.piece-token.move-ghost.illegal-unsupplied::before {
  transform: rotate(40deg);
}

.piece-token.move-ghost.illegal-unsupplied::after {
  transform: rotate(-40deg);
}

.piece-empty {
  position: relative;
  z-index: 1;
  width: 10px;
  height: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.piece-empty::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #94a0a4;
}

.axis-label {
  position: absolute;
  z-index: 4;
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1;
  color: var(--muted);
  pointer-events: none;
}

.axis-label.axis-medium {
  color: #7e4f18;
  font-weight: 800;
}

.axis-label.axis-medium.axis-target-p1 {
  color: var(--player-p1);
}

.axis-label.axis-medium.axis-target-p2 {
  color: var(--player-p2);
}

.axis-label.axis-strong {
  color: var(--move-selection-ring);
  font-weight: 900;
  text-shadow: 0 0 0.01px currentColor;
}

.axis-label.col-axis {
  bottom: -11px;
  left: 50%;
  transform: translateX(-50%);
}

.axis-label.row-axis {
  left: -11px;
  top: 50%;
  transform: translateY(-50%);
}

.supply-point-marker {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 12px;
  height: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
  font-size: 0;
  color: transparent;
  line-height: 1;
  transform: translateZ(0);
  background: transparent;
}

.supply-point-marker::before,
.supply-point-marker::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  border-radius: 2px;
  pointer-events: none;
}

/* Inner green diamond border */
.supply-point-marker::before {
  width: 7px;
  height: 7px;
  border: 2px solid #2f8e63;
  box-sizing: border-box;
  background: #2f8e63;
}

/* Outer owner-colored diamond border with a small gap. */
.supply-point-marker::after {
  width: 10px;
  height: 10px;
  border: 1px solid var(--muted);
  box-sizing: border-box;
  background: transparent;
}

.supply-point-marker.supply-point-p1::after {
  border-color: var(--player-p1);
}

.supply-point-marker.supply-point-p2::after {
  border-color: var(--player-p2);
}

.form-row {
  display: grid;
  gap: 0.35rem;
}

.toggle-row {
  margin-top: 0.65rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.fixture-description {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
  min-height: 2.4rem;
}

.fixture-description p {
  margin: 0;
}

.fixture-description p + p {
  margin-top: 0.7rem;
}

.fixture-status-incorrect {
  color: #8f0f0f;
}

.fixture-toggle-row {
  margin-top: 0.7rem;
}

.toggle-row input {
  margin: 0;
}

select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.6rem;
  background: #fff;
}

.coord-row {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.label {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.coord-row p:last-child {
  margin: 0.2rem 0 0;
  font-weight: 700;
}

.button-row {
  margin-top: 0.95rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.status-list {
  margin: 0 0 0.8rem;
  padding: 0 0 0 1rem;
}

pre {
  margin: 0.65rem 0 0;
  padding: 0.75rem;
  border-radius: 8px;
  background: #111a1d;
  color: #deedf1;
  overflow-x: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 0.8rem;
}

#move-log {
  margin: 0;
  padding-left: 1.2rem;
}

#move-log li + li {
  margin-top: 0.3rem;
}

#move-log li.player-tone-p1,
#side-to-move.player-tone-p1,
#board-turn-indicator.player-tone-p1 {
  color: var(--player-p1);
}

#move-log li.player-tone-p2,
#side-to-move.player-tone-p2,
#board-turn-indicator.player-tone-p2 {
  color: var(--player-p2);
}

#move-log li.player-tone-both,
#side-to-move.player-tone-both,
#board-turn-indicator.player-tone-both {
  color: var(--player-both);
}

#move-log li.player-tone-neutral {
  color: var(--muted);
}

button:disabled {
  opacity: 0.6;
  cursor: progress;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .log-column,
  .middle-column,
  .right-column {
    gap: 0.8rem;
  }
}