:root {
  color-scheme: dark;
  --bg-top: #07111f;
  --bg-bottom: #040916;
  --panel: rgba(11, 19, 34, 0.66);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text-soft: rgba(220, 231, 247, 0.72);
  --aurora: #7ef6c4;
  --solar: #ffca6d;
  --ember: #ff7666;
  --sky: #8ec8ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 20% 15%, rgba(126, 246, 196, 0.15), transparent 26%),
    radial-gradient(circle at 82% 18%, rgba(255, 118, 102, 0.12), transparent 22%),
    radial-gradient(circle at 50% 120%, rgba(142, 200, 255, 0.12), transparent 35%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  font-family: "Manrope", sans-serif;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -1;
}

body::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 78%);
}

body::after {
  background:
    radial-gradient(circle at center, rgba(126, 246, 196, 0.08), transparent 48%),
    radial-gradient(circle at bottom, rgba(255, 202, 109, 0.08), transparent 35%);
  filter: blur(36px);
  opacity: 0.7;
}

.page-shell {
  position: relative;
  isolation: isolate;
}

.glass-panel {
  background: linear-gradient(180deg, rgba(12, 22, 38, 0.85), rgba(6, 12, 24, 0.72));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 20px 60px rgba(2, 5, 12, 0.38);
  backdrop-filter: blur(22px);
}

.metric-chip,
.overlay-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(14px);
}

.metric-chip {
  display: flex;
  min-width: 180px;
  flex-direction: column;
  gap: 0.4rem;
  border-radius: 22px;
  padding: 0.95rem 1rem;
}

.metric-chip__label,
.overlay-card__label {
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.46);
}

.metric-chip__value,
.overlay-card__value {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
}

.board-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top, rgba(126, 246, 196, 0.1), transparent 30%),
    radial-gradient(circle at bottom, rgba(255, 118, 102, 0.08), transparent 35%),
    linear-gradient(180deg, rgba(8, 13, 28, 0.96), rgba(4, 8, 18, 0.92));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 30px 90px rgba(2, 4, 10, 0.55);
}

.board-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.05) 38%, transparent 70%);
  transform: translateX(-100%);
  animation: scan 13s linear infinite;
  pointer-events: none;
}

#three-stage canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.board-stage--celebrating {
  box-shadow:
    inset 0 0 0 1px rgba(255, 202, 109, 0.3),
    0 0 0 1px rgba(255, 202, 109, 0.18),
    0 30px 90px rgba(255, 202, 109, 0.18);
}

.board-stage[data-mode="fallback"]::before {
  opacity: 0.45;
}

.board-fallback {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 520px;
  padding: 1.5rem;
}

.board-fallback__grid,
.board-fallback__overlay,
.board-fallback__tokens {
  position: absolute;
  inset: 1.5rem;
}

.board-fallback__grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(10, 1fr);
  gap: 6px;
}

.board-fallback__overlay,
.board-fallback__tokens {
  pointer-events: none;
}

.board-fallback__badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 16, 30, 0.75);
  padding: 0.55rem 0.8rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(12px);
}

.board-cell {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 12px 26px rgba(2, 5, 14, 0.14);
}

.board-cell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 40%);
  opacity: 0.6;
}

.board-cell--warm {
  background: linear-gradient(160deg, rgba(20, 50, 84, 0.95), rgba(10, 27, 48, 0.9));
}

.board-cell--cool {
  background: linear-gradient(160deg, rgba(15, 34, 60, 0.95), rgba(8, 22, 40, 0.9));
}

.board-cell--start {
  box-shadow:
    inset 0 0 0 1px rgba(126, 246, 196, 0.26),
    0 0 36px rgba(126, 246, 196, 0.14);
}

.board-cell--finish {
  box-shadow:
    inset 0 0 0 1px rgba(255, 202, 109, 0.28),
    0 0 40px rgba(255, 202, 109, 0.16);
}

.board-cell--pulse {
  animation: cell-pulse 520ms ease;
}

.board-cell__number {
  position: absolute;
  top: 0.4rem;
  left: 0.5rem;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.82);
}

.board-link {
  transition:
    filter 180ms ease,
    opacity 180ms ease,
    transform 180ms ease;
}

.board-link--ladder .board-link__rail {
  stroke: rgba(255, 202, 109, 0.92);
  stroke-linecap: round;
}

.board-link--ladder .board-link__rung {
  stroke: rgba(255, 244, 214, 0.88);
  stroke-linecap: round;
}

.board-link--ladder .board-link__start {
  fill: rgba(255, 202, 109, 0.9);
}

.board-link--ladder .board-link__end {
  fill: rgba(126, 246, 196, 0.95);
}

.board-link--snake .board-link__snake-body {
  fill: none;
  stroke: rgba(255, 118, 102, 0.9);
  stroke-linecap: round;
  stroke-linejoin: round;
}

.board-link--snake .board-link__snake-head {
  fill: rgba(255, 118, 102, 0.95);
}

.board-link--snake .board-link__snake-tail {
  fill: rgba(142, 200, 255, 0.95);
}

.board-link--active {
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.35));
}

.board-token {
  position: absolute;
  left: var(--cell-left, 50%);
  top: var(--cell-top, 50%);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  transform: translate(
      calc(-50% + var(--offset-x, 0px)),
      calc(-50% + var(--offset-y, 0px))
    );
  transition:
    left 280ms ease,
    top 280ms ease,
    transform 280ms ease,
    box-shadow 280ms ease,
    filter 280ms ease;
  z-index: 4;
}

.board-token span {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
}

.board-token--user {
  background: radial-gradient(circle at 30% 30%, #dffff2, #7ef6c4 58%, #33c79d 100%);
  color: #08201a;
  box-shadow:
    0 0 18px rgba(126, 246, 196, 0.4),
    0 10px 22px rgba(51, 199, 157, 0.28);
}

.board-token--computer {
  background: radial-gradient(circle at 30% 30%, #fff0ec, #ff7666 58%, #cf4b3d 100%);
  color: #2a0c08;
  box-shadow:
    0 0 18px rgba(255, 118, 102, 0.42),
    0 10px 22px rgba(207, 75, 61, 0.28);
}

.board-token--jump {
  animation: token-jump 300ms ease;
}

.board-token--ladder {
  filter: drop-shadow(0 0 18px rgba(255, 202, 109, 0.55));
}

.board-token--snake {
  filter: drop-shadow(0 0 18px rgba(255, 118, 102, 0.55));
}

.hud-chip {
  border-radius: 999px;
  border: 1px solid rgba(126, 246, 196, 0.22);
  background: rgba(126, 246, 196, 0.08);
  padding: 0.65rem 0.9rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.hud-chip--warm {
  border-color: rgba(255, 202, 109, 0.22);
  background: rgba(255, 202, 109, 0.08);
}

.overlay-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  border-radius: 20px;
  padding: 0.85rem 1rem;
}

.status-pill {
  border-radius: 999px;
  padding: 0.68rem 0.95rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.status-pill--user {
  border: 1px solid rgba(126, 246, 196, 0.28);
  background: rgba(126, 246, 196, 0.12);
  color: #dbfff1;
}

.status-pill--computer {
  border: 1px solid rgba(255, 118, 102, 0.28);
  background: rgba(255, 118, 102, 0.12);
  color: #ffe7e4;
}

.status-pill--done {
  border: 1px solid rgba(255, 202, 109, 0.3);
  background: rgba(255, 202, 109, 0.12);
  color: #fff2d3;
}

.player-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  padding: 1.15rem 1.25rem;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.player-card[data-player="user"][data-active="true"] {
  border-color: rgba(126, 246, 196, 0.35);
  background: linear-gradient(135deg, rgba(126, 246, 196, 0.12), rgba(255, 255, 255, 0.05));
  box-shadow: 0 18px 45px rgba(55, 219, 184, 0.16);
  transform: translateY(-1px);
}

.player-card[data-player="computer"][data-active="true"] {
  border-color: rgba(255, 118, 102, 0.35);
  background: linear-gradient(135deg, rgba(255, 118, 102, 0.12), rgba(255, 255, 255, 0.05));
  box-shadow: 0 18px 45px rgba(255, 118, 102, 0.15);
  transform: translateY(-1px);
}

.cta-button {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 18px;
  padding: 0.95rem 1rem;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    opacity 180ms ease;
}

.cta-button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.cta-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.cta-button--primary {
  background: linear-gradient(135deg, rgba(126, 246, 196, 0.95), rgba(108, 225, 255, 0.9));
  box-shadow: 0 18px 44px rgba(87, 216, 196, 0.25);
  color: #04131a;
}

.cta-button--secondary {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.88);
}

.dice-card {
  position: relative;
  overflow: hidden;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.dice-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.15), transparent 26%),
    radial-gradient(circle at 50% 80%, rgba(126, 246, 196, 0.15), transparent 35%);
  pointer-events: none;
}

.dice-card[data-rolling="true"] {
  box-shadow:
    0 25px 60px rgba(126, 246, 196, 0.16),
    inset 0 0 0 1px rgba(126, 246, 196, 0.22);
}

.dice-value {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(4.2rem, 10vw, 5.4rem);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: white;
  text-shadow:
    0 0 20px rgba(255, 255, 255, 0.15),
    0 0 34px rgba(126, 246, 196, 0.18);
}

#feed-list {
  max-height: 336px;
  overflow: auto;
  padding-right: 0.35rem;
}

.feed-item {
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.95rem 1rem;
  animation: feed-in 320ms ease;
}

.feed-item__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.44);
}

.feed-item__message {
  margin-top: 0.55rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.78);
}

.feed-item--user {
  border-color: rgba(126, 246, 196, 0.18);
}

.feed-item--computer {
  border-color: rgba(255, 118, 102, 0.18);
}

.feed-item--system {
  border-color: rgba(255, 202, 109, 0.18);
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

::-webkit-scrollbar-track {
  background: transparent;
}

@keyframes scan {
  0% {
    transform: translateX(-110%);
  }
  100% {
    transform: translateX(110%);
  }
}

@keyframes feed-in {
  from {
    transform: translateY(10px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes token-jump {
  0%,
  100% {
    transform: translate(
        calc(-50% + var(--offset-x, 0px)),
        calc(-50% + var(--offset-y, 0px))
      );
  }
  45% {
    transform: translate(
        calc(-50% + var(--offset-x, 0px)),
        calc(-50% + var(--offset-y, 0px) - 16px)
      )
      scale(1.08);
  }
}

@keyframes cell-pulse {
  0% {
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.06),
      0 0 0 rgba(0, 0, 0, 0);
  }
  50% {
    box-shadow:
      inset 0 0 0 1px var(--pulse-color, #7ef6c4),
      0 0 28px var(--pulse-color, #7ef6c4);
  }
  100% {
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.06),
      0 0 0 rgba(0, 0, 0, 0);
  }
}

@media (max-width: 768px) {
  .metric-chip {
    min-width: 0;
  }

  .overlay-card {
    padding: 0.8rem 0.9rem;
  }

  .board-fallback {
    padding: 0.9rem;
  }

  .board-fallback__grid,
  .board-fallback__overlay,
  .board-fallback__tokens {
    inset: 0.9rem;
  }

  .board-cell {
    border-radius: 12px;
  }

  .board-token {
    width: 24px;
    height: 24px;
  }

  .board-cell__number {
    top: 0.28rem;
    left: 0.32rem;
    font-size: 0.58rem;
  }

  .board-fallback__badge {
    top: 0.85rem;
    right: 0.85rem;
    font-size: 0.58rem;
    letter-spacing: 0.14em;
  }
}