.board-modal-layer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
}

.board-modal-layer[hidden] {
  display: none !important;
}

.board-modal-backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: oklch(8% 0.02 260 / 62%);
  backdrop-filter: blur(4px);
  transition: background 0.5s ease;
}

.board-modal-layer[data-win-reason] .board-modal-backdrop {
  backdrop-filter: blur(6px);
}

.board-modal-layer[data-win-reason="wisdom"] {
  --win-tone: oklch(62% 0.14 250);
  --win-particle: oklch(74% 0.18 250);
}

.board-modal-layer[data-win-reason="wisdom"] .board-modal-backdrop {
  background:
    radial-gradient(ellipse 120% 85% at 50% 28%, oklch(42% 0.12 250 / 42%), transparent 58%),
    radial-gradient(ellipse 90% 70% at 80% 80%, oklch(28% 0.08 250 / 35%), transparent 55%),
    oklch(10% 0.05 250 / 84%);
}

.board-modal-layer[data-win-reason="vigor"] {
  --win-tone: oklch(72% 0.18 38);
  --win-particle: oklch(78% 0.2 38);
}

.board-modal-layer[data-win-reason="vigor"] .board-modal-backdrop {
  background:
    radial-gradient(ellipse 120% 85% at 50% 28%, oklch(48% 0.14 38 / 40%), transparent 58%),
    radial-gradient(ellipse 90% 70% at 18% 78%, oklch(32% 0.1 38 / 32%), transparent 55%),
    oklch(10% 0.04 38 / 84%);
}

.board-modal-layer[data-win-reason="presence"] {
  --win-tone: oklch(72% 0.028 260);
  --win-particle: oklch(82% 0.04 260);
}

.board-modal-layer[data-win-reason="presence"] .board-modal-backdrop {
  background:
    radial-gradient(ellipse 115% 80% at 50% 30%, oklch(38% 0.03 260 / 38%), transparent 58%),
    radial-gradient(ellipse 80% 65% at 72% 72%, oklch(24% 0.02 260 / 30%), transparent 55%),
    oklch(9% 0.02 260 / 86%);
}

.board-modal-layer[data-win-reason="courage"] {
  --win-tone: oklch(76% 0.13 82);
  --win-particle: oklch(84% 0.16 82);
}

.board-modal-layer[data-win-reason="courage"] .board-modal-backdrop {
  background:
    radial-gradient(ellipse 120% 85% at 50% 28%, oklch(50% 0.12 82 / 38%), transparent 58%),
    radial-gradient(ellipse 90% 70% at 22% 75%, oklch(34% 0.09 82 / 30%), transparent 55%),
    oklch(10% 0.04 82 / 84%);
}

.board-modal-layer[data-win-reason="prosperity"] {
  --win-tone: oklch(78% 0.14 145);
  --win-particle: oklch(82% 0.16 145);
}

.board-modal-layer[data-win-reason="prosperity"] .board-modal-backdrop {
  background:
    radial-gradient(ellipse 120% 85% at 50% 28%, oklch(46% 0.12 145 / 40%), transparent 58%),
    radial-gradient(ellipse 90% 70% at 78% 76%, oklch(30% 0.08 145 / 32%), transparent 55%),
    oklch(10% 0.04 145 / 84%);
}

.game-end-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.game-end-particles[hidden] {
  display: none !important;
}

.game-end-particle {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background: var(--win-particle, var(--win-tone, var(--tile-hover)));
  opacity: var(--opacity, 0.25);
  box-shadow: 0 0 14px color-mix(in oklch, var(--win-particle, var(--tile-hover)) 55%, transparent);
  animation: game-end-particle-drift var(--duration) var(--delay) ease-in-out infinite;
  will-change: transform, opacity;
}

.game-end-particle--glow {
  filter: blur(1px);
  box-shadow:
    0 0 22px color-mix(in oklch, var(--win-particle, var(--tile-hover)) 70%, transparent),
    0 0 40px color-mix(in oklch, var(--win-particle, var(--tile-hover)) 35%, transparent);
}

@keyframes game-end-particle-drift {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: calc(var(--opacity, 0.25) * 0.65);
  }

  50% {
    transform: translate(var(--drift-x), var(--drift-y)) scale(1.15);
    opacity: calc(var(--opacity, 0.25) * 1.35);
  }
}

@media (prefers-reduced-motion: reduce) {
  .game-end-particle {
    animation: none;
    opacity: calc(var(--opacity, 0.25) * 0.85);
  }
}

.board-modal {
  position: relative;
  z-index: 2;
  width: min(100%, 420px);
  max-height: min(92vh, 640px);
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 16px;
  background: var(--panel);
  box-shadow:
    inset 0 0 0 1px oklch(100% 0 0 / 10%),
    0 24px 48px oklch(4% 0.02 260 / 55%);
  color: var(--text);
  overflow: auto;
  flex-shrink: 0;
}

.board-modal:not([open]) {
  display: none;
}

.board-modal--end {
  width: min(100%, 520px);
}

.board-modal__form,
.board-modal__end-body {
  padding: 22px 24px 20px;
}

.board-modal__title {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.board-modal__title--center {
  text-align: center;
}

.board-modal__fieldset {
  margin: 0 0 16px;
  padding: 0;
  border: none;
}

.board-modal__legend {
  margin: 0 0 10px;
  padding: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.board-modal__hint {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
}

.board-modal__field {
  display: grid;
  grid-template-columns: 88px 1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.board-modal__label {
  font-size: 14px;
}

.board-modal__check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}

.board-modal__check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--tile-hover);
  cursor: pointer;
}

.board-modal__select {
  width: 100%;
  margin: 0;
}

.board-modal__select option:disabled {
  color: var(--muted);
}

.board-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 18px;
}

.board-modal__actions--center {
  justify-content: center;
}

.board-modal__actions .mode-select {
  margin: 0;
  min-width: 108px;
}

#setup-minutes:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.game-end-condition {
  margin: 0 0 20px;
  text-align: center;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.game-end-condition[data-win-reason="wisdom"] {
  color: var(--piece-player-2);
}

.game-end-condition[data-win-reason="vigor"] {
  color: var(--piece-player-1);
}

.game-end-condition[data-win-reason="presence"] {
  color: var(--muted);
}

.game-end-condition[data-win-reason="courage"] {
  color: var(--tile-hover);
}

.game-end-condition[data-win-reason="prosperity"] {
  color: oklch(78% 0.14 145);
}

.game-end-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.game-end-stats__heading {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
}

.game-end-stats__list {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  font-size: 13px;
}

.game-end-stats__list dt {
  margin: 0;
  color: var(--muted);
}

.game-end-stats__list dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.game-end-stats__captures {
  grid-column: 1 / -1;
  text-align: left !important;
  line-height: 1.45;
  color: var(--text);
}

.game-end-lotus-note {
  margin: 0 0 12px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}