:root {
  --snake-green: #22c55e;
  --snake-green-dark: #15803d;
  --snake-reward: #22c55e;
  --snake-penalty: #ef4444;
}

.snake-settings-form {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.snake-settings-form .base-game-button {
  grid-column: 1 / -1;
}

.snake-pellet-density-warning {
  grid-column: 1 / -1;
  margin: 0;
  color: #fca5a5;
  font-weight: 700;
}

.snake-settings-form label {
  display: grid;
  gap: 7px;
  color: #cbd5e1;
  font-weight: 700;
}

.snake-settings-form label[hidden] {
  display: none;
}

.snake-settings-form label.is-disabled {
  color: #64748b;
}

.snake-settings-form input,
.snake-settings-form select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
}

.snake-settings-form input {
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: #0f172a;
  color: #f8fafc;
}

.snake-settings-form input:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.snake-radius-note {
  margin: 0.5rem 0 0;
  color: var(--muted-color, #a8b3c5);
}

.snake-end-condition {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 12px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 10px;
}

.snake-penalty-settings {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 12px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 10px;
}

.snake-end-condition legend,
.snake-penalty-settings legend {
  padding: 0 6px;
  color: #cbd5e1;
  font-weight: 700;
}

.snake-settings-form .snake-end-option {
  display: grid;
  min-width: 0;
  gap: 6px;
}

.snake-end-option select {
  width: 100%;
  min-width: 0;
  transition:
    border-color 120ms ease,
    box-shadow 120ms ease,
    background-color 120ms ease,
    opacity 120ms ease;
}

.snake-end-option:not(.is-selected) select {
  opacity: 0.48;
  cursor: pointer;
}

.snake-end-option.is-selected select {
  opacity: 1;
  border-color: var(--dropdown-selected-border);
  background: var(--dropdown-selected-background);
  box-shadow: 0 0 0 2px var(--dropdown-selected-ring);
}

.snake-room {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.snake-room[hidden] {
  display: none;
}

.snake-room-main,
.snake-room-sidebar {
  min-width: 0;
}

.snake-waiting-practice {
  width: min(100%, 720px);
  margin: 1rem auto 0;
  overflow: hidden;
  border-radius: 18px;
}

.snake-waiting-practice[hidden] {
  display: none;
}

.snake-waiting-practice-frame {
  display: block;
  width: 100%;
  height: 840px;
  min-height: 840px;
  border: 0;
  background: transparent;
}

.snake-room-info,
.snake-scoreboard,
.snake-metrics {
  padding: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 0.8rem;
  background: rgba(15, 23, 42, 0.58);
}

.snake-room-info h3,
.snake-scoreboard h3,
.snake-room-info p {
  margin: 0;
}

.snake-room-info p {
  margin-top: 0.45rem;
}

.snake-game {
  --snake-docked-sidebar-width: 300px;
  width: min(100%, calc(100vw - var(--snake-docked-sidebar-width)));
  margin-top: 1rem;
}

.snake-score-column {
  box-sizing: border-box;
  display: grid;
  min-width: 0;
  gap: 0.85rem;
  padding-inline-end: 1rem;
}

.snake-metrics {
  display: grid;
  gap: 0.5rem;
}

.snake-metric {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.55rem 0.65rem;
  border-radius: 0.75rem;
  background: rgba(15, 23, 42, 0.72);
}

.snake-metric span {
  color: #a8b3c5;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.snake-metric output {
  font-size: 1.05rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.snake-play-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 16rem);
  gap: 1rem;
  align-items: start;
}

.snake-board-panel {
  min-width: 0;
}

.snake-pellet-inactivity-warning {
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(251, 191, 36, 0.58);
  border-radius: 10px;
  background: rgba(120, 53, 15, 0.35);
  color: #fde68a;
  font-weight: 800;
  line-height: 1.45;
  text-align: center;
}

.snake-pellet-inactivity-warning[hidden] {
  display: none;
}

.snake-debug-copy-control {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  min-height: 2.5rem;
}

.snake-debug-copy-control[hidden] {
  display: none;
}

.snake-debug-copy-control .base-game-button {
  flex: 0 0 auto;
}

.snake-debug-copy-feedback {
  color: #a8b3c5;
  font-size: 0.82rem;
}

.snake-board-wrap {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
  gap: clamp(0.75rem, 2vw, 1.5rem);
  align-items: end;
  width: 100%;
}

.snake-board {
  grid-column: 1;
  grid-row: 1;
  display: block;
  min-width: 0;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  touch-action: none;
  user-select: none;
}

.snake-area {
  fill: rgba(15, 23, 42, 0.9);
  stroke: rgba(74, 222, 128, 0.72);
  stroke-width: 0.16;
}

.snake-player-outline {
  fill: rgba(255, 255, 255, 0.86);
}

.snake-player-outline.is-you {
  fill: #fde047;
}

.snake-player-circle {
  fill: var(--player-avatar-background);
}

.snake-player-avatar-icon {
  font-size: 1.15px;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

.snake-player-avatar-image {
  pointer-events: none;
}

.snake-bot-outline {
  fill: #e2e8f0;
}

.snake-bot-circle {
  fill: #64748b;
}

.snake-bot-icon {
  fill: #fff;
  font-size: 1.15px;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

.snake-pellet {
  pointer-events: none;
}

.snake-pellet-effects {
  pointer-events: none;
}

.snake-pellet--reward .snake-pellet-outline {
  fill: #bbf7d0;
}

.snake-pellet--reward .snake-pellet-fill {
  fill: var(--snake-reward);
}

.snake-pellet--penalty .snake-pellet-outline {
  fill: #fecaca;
}

.snake-pellet--penalty .snake-pellet-fill {
  fill: var(--snake-penalty);
}

.snake-player-outline,
.snake-player-circle,
.snake-bot-outline,
.snake-bot-circle,
.snake-pellet-outline,
.snake-pellet-fill {
  pointer-events: none;
}

.snake-destination line {
  stroke: #fde047;
  stroke-width: 0.12;
  stroke-linecap: round;
}

.snake-direction-destination polyline {
  fill: none;
  stroke: #fde047;
  stroke-width: 0.14;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.snake-direction-control {
  grid-column: 2;
  grid-row: 1;
  align-self: end;
  justify-self: end;
  display: block;
  min-width: 0;
  width: 100%;
  aspect-ratio: 1;
  overflow: visible;
  border-radius: 50%;
  cursor: crosshair;
  clip-path: circle(50%);
  filter: drop-shadow(0 0.25rem 0.45rem rgba(2, 6, 23, 0.48));
  touch-action: none;
  user-select: none;
}

.snake-direction-control-region {
  fill: rgba(15, 23, 42, 0.94);
  stroke: rgba(147, 197, 253, 0.92);
  stroke-width: 0.08;
}

.snake-direction-control-center {
  fill: #bfdbfe;
  pointer-events: none;
}

.snake-direction-control-arrow {
  display: none;
  pointer-events: none;
}

.snake-direction-control-arrow line,
.snake-direction-control-arrow polyline {
  fill: none;
  stroke: #fde047;
  stroke-width: 0.07;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.snake-direction-control.is-active .snake-direction-control-arrow {
  display: inline;
}

.snake-direction-control.is-disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.snake-scoreboard {
  max-height: 38rem;
  overflow: auto;
}

.snake-scoreboard-heading {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.snake-scoreboard-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.snake-scoreboard-table {
  width: 100%;
  border-collapse: collapse;
}

.snake-scoreboard-table th,
.snake-scoreboard-table td {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  vertical-align: middle;
  white-space: nowrap;
}

.snake-scoreboard-table thead th {
  color: #94a3b8;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.snake-score-row {
  will-change: transform;
}

.snake-score-row:last-child > * {
  border-bottom: 0;
}

.snake-score-row.is-you > * {
  color: #fde047;
}

.snake-score-identity {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  max-width: 100%;
  min-width: 0;
}

.snake-score-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.snake-score-value {
  position: relative;
  display: grid;
  grid-template-areas: 'score';
  height: 1.2em;
  overflow: hidden;
  font-weight: 800;
  line-height: 1.2;
}

.snake-score-number {
  grid-area: score;
  display: block;
  text-align: right;
}

.snake-status {
  min-height: 1.5rem;
  margin: 0.85rem 0 0;
}

.snake-status.error {
  color: #fca5a5;
}

.snake-final-results-button {
  box-sizing: border-box;
  display: grid;
  width: 60px;
  height: 60px;
  margin: 0;
  place-items: center;
  padding: 0;
  border: 2px solid rgba(254, 243, 199, 0.86);
  border-radius: 15px;
  color: #422006;
  background: #fef3c7;
  box-shadow: 0 4px 9px rgba(0, 0, 0, 0.32);
  font: inherit;
  cursor: pointer;
  animation: snake-final-results-glow 1.45s ease-in-out infinite;
}

.snake-final-results-button:hover:not(:disabled),
.snake-final-results-button:focus-visible {
  border-color: #fbbf24;
  background: #fde68a;
}

.snake-final-results-button[hidden] {
  display: none;
}

.snake-final-results-button:disabled {
  opacity: 0.58;
  cursor: wait;
  animation: none;
}

.snake-final-results-button img {
  display: block;
  width: 48px;
  height: 48px;
  object-fit: contain;
}

@keyframes snake-final-results-glow {
  0%,
  100% {
    box-shadow:
      0 4px 9px rgba(0, 0, 0, 0.32),
      0 0 0 rgba(251, 191, 36, 0);
    transform: translateY(0) scale(1);
  }

  50% {
    box-shadow:
      0 4px 9px rgba(0, 0, 0, 0.32),
      0 0 22px rgba(251, 191, 36, 0.72);
    transform: translateY(-1px) scale(1.04);
  }
}

.snake-results-dialog {
  width: min(920px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  padding: 24px;
  border: 2px solid #fbbf24;
  border-radius: 16px;
  color: #f8fafc;
  background: #111827;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.62);
}

.snake-results-dialog::backdrop {
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(3px);
}

.snake-results-dialog h3,
.snake-results-dialog p {
  margin-top: 0;
}

.snake-final-results-table-wrap {
  overflow-x: auto;
}

.snake-final-results-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.72);
}

.snake-final-results-table th,
.snake-final-results-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.22);
  text-align: center;
  white-space: nowrap;
}

.snake-final-results-table th {
  color: #fef3c7;
  background: rgba(30, 41, 59, 0.92);
}

.snake-final-results-table tr:last-child td {
  border-bottom: 0;
}

.snake-final-numeric-value {
  display: inline-block;
  min-width: 3ch;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.snake-resigned-text {
  color: #fca5a5;
}

.snake-final-results-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1rem;
}

@media (max-width: 900px) {
  .snake-room,
  .snake-play-layout {
    grid-template-columns: 1fr;
  }

  .snake-scoreboard {
    max-height: none;
  }
}

@media (max-width: 1000px),
  (min-width: 600px) and (min-height: 600px) and (max-width: 1366px) and (any-pointer: coarse) {
  .snake-game {
    width: 100%;
  }

  .snake-score-column {
    padding-inline-end: 0;
  }
}

@media (max-width: 760px) {
  .snake-end-condition {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .snake-end-condition,
  .snake-penalty-settings {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .snake-final-results-button {
    animation: none;
  }
}