:root {
  color-scheme: dark;
  --bg: #0d1222;
  --ink: #fff8ee;
  --muted: #b9c4d8;
  --line: rgba(255, 255, 255, 0.18);
  --panel: rgba(12, 21, 42, 0.94);
  --blue: #54c7ff;
  --store-blue: #1266ff;
  --yellow: #ffd166;
  --pink: #ff5ca8;
  --green: #5de49b;
  --dark-square: #25508f;
  --light-square: #e8eef8;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 16% 12%, rgba(255, 92, 168, 0.2), transparent 28%),
    radial-gradient(circle at 84% 12%, rgba(84, 199, 255, 0.24), transparent 30%),
    linear-gradient(155deg, #08122d 0%, #102b68 50%, #090f1f 100%);
  color: var(--ink);
  touch-action: manipulation;
  user-select: none;
}

button {
  font: inherit;
}

.shell {
  position: relative;
  display: grid;
  width: 100vw;
  min-height: 100dvh;
  padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right))
    max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  place-items: center;
}

.game {
  display: grid;
  grid-template-rows: auto auto auto minmax(82px, 0.3fr) auto;
  gap: 10px;
  width: min(100%, 520px);
  height: min(100dvh - 24px, 920px);
  min-height: 620px;
}

.opponent-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  min-height: 78px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.opponent-card strong {
  display: block;
  overflow: hidden;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.opponent-card p {
  margin: 4px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.avatar {
  position: relative;
  width: 58px;
  height: 58px;
}

.avatar .head {
  position: absolute;
  left: 11px;
  top: 8px;
  width: 36px;
  height: 38px;
  border: 2px solid rgba(10, 16, 32, 0.75);
  border-radius: 45% 45% 48% 48%;
  background: linear-gradient(145deg, #ffd5b5, #f1a980);
  box-shadow: inset -5px -5px 0 rgba(150, 78, 52, 0.18), 0 6px 12px rgba(0, 0, 0, 0.26);
  z-index: 2;
}

.avatar .hair {
  position: absolute;
  left: 9px;
  top: 4px;
  width: 40px;
  height: 23px;
  border: 2px solid rgba(10, 16, 32, 0.8);
  border-radius: 48% 52% 35% 35%;
  background: #202844;
  z-index: 3;
}

.avatar.female .hair {
  left: 6px;
  top: 2px;
  width: 46px;
  height: 36px;
  border-radius: 48% 48% 42% 42%;
  background: #33264a;
}

.avatar.female .hair::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: -12px;
  height: 22px;
  border: 2px solid rgba(10, 16, 32, 0.72);
  border-top: 0;
  border-radius: 0 0 22px 22px;
  background: #33264a;
}

.avatar.female .shoulders {
  background: linear-gradient(135deg, var(--pink), var(--store-blue));
}

.avatar .shoulders {
  position: absolute;
  left: 5px;
  bottom: 2px;
  width: 48px;
  height: 22px;
  border: 2px solid rgba(10, 16, 32, 0.72);
  border-radius: 24px 24px 10px 10px;
  background: linear-gradient(135deg, var(--blue), var(--store-blue));
  z-index: 1;
}

.avatar .eye {
  position: absolute;
  top: 17px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #111827;
}

.avatar .eye.left {
  left: 9px;
}

.avatar .eye.right {
  right: 9px;
}

.avatar .mouth {
  position: absolute;
  left: 12px;
  bottom: 9px;
  width: 12px;
  height: 6px;
  border-bottom: 2px solid #111827;
  border-radius: 0 0 12px 12px;
}

.avatar.thinking .eye {
  height: 3px;
  border-radius: 4px;
}

.avatar.thinking .mouth {
  left: 15px;
  width: 6px;
  height: 6px;
  border: 2px solid #111827;
  border-radius: 50%;
}

.avatar.thinking::after {
  content: "?";
  position: absolute;
  right: -2px;
  top: -6px;
  display: grid;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  place-items: center;
  background: var(--yellow);
  color: #111827;
  font-weight: 950;
  box-shadow: 0 5px 12px rgba(0, 0, 0, 0.24);
  z-index: 4;
}

.topbar,
.bottombar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 10px;
}

.bottombar {
  grid-template-columns: repeat(4, 1fr);
}

.metric {
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.09);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
}

.metric.center {
  text-align: center;
}

.metric.right {
  text-align: right;
}

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 1px;
  overflow: hidden;
  font-size: clamp(0.98rem, 3.5dvh, 1.45rem);
  line-height: 1.08;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.board-wrap {
  position: relative;
  display: grid;
  grid-template-rows: 30px minmax(0, auto) 30px;
  gap: 6px;
  place-items: center;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    rgba(4, 10, 28, 0.8);
  background-size: 34px 34px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 18px 45px rgba(0, 0, 0, 0.3);
}

.captured-row {
  display: flex;
  align-items: center;
  gap: 2px;
  width: min(100%, calc(100dvh - 244px), 500px);
  min-height: 28px;
  padding: 2px 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.captured-row.bottom {
  justify-content: flex-start;
}

.captured-row.top {
  justify-content: flex-end;
}

.captured-piece {
  display: inline-grid;
  width: 22px;
  height: 24px;
  place-items: center;
  font-size: 1.35rem;
  font-weight: 950;
  line-height: 1;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.55),
    0 3px 0 rgba(83, 58, 22, 0.42),
    0 7px 10px rgba(0, 0, 0, 0.34);
  -webkit-text-stroke: 1px rgba(96, 70, 32, 0.5);
}

.captured-piece.white {
  color: #fff6d8;
}

.captured-piece.black {
  color: #05070b;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18),
    0 3px 0 rgba(0, 0, 0, 0.72),
    0 7px 10px rgba(0, 0, 0, 0.5);
  -webkit-text-stroke: 1px rgba(237, 232, 218, 0.22);
}

.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  width: min(100%, calc(100dvh - 244px), 500px);
  aspect-ratio: 1;
  overflow: hidden;
  border: 4px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}

.square {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  border: 0;
  border-radius: 0;
  place-items: center;
  cursor: pointer;
  font-size: clamp(1.65rem, 10dvw, 3.25rem);
  line-height: 1;
  overflow: hidden;
}

.square.light {
  background: var(--light-square);
}

.square.dark {
  background: var(--dark-square);
}

.square.selected {
  box-shadow: inset 0 0 0 5px var(--yellow);
}

.square.last {
  box-shadow: inset 0 0 0 4px rgba(255, 209, 102, 0.52);
}

.square.legal::after {
  content: "";
  width: 28%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(18, 102, 255, 0.42);
}

.square.capture::after {
  content: "";
  position: absolute;
  inset: 12%;
  border: 4px solid rgba(255, 92, 168, 0.72);
  border-radius: 50%;
}

.piece {
  position: absolute;
  inset: 0;
  display: grid;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  place-items: center;
  font-size: clamp(2rem, 10.5dvw, 3.55rem);
  font-weight: 950;
  transform: translateY(-4px);
  text-shadow:
    -1px -1px 0 #fffdf0,
    1px 1px 0 #b68d4d,
    2px 3px 0 #8f672e,
    4px 7px 8px rgba(34, 20, 6, 0.42),
    0 13px 16px rgba(0, 0, 0, 0.32);
  -webkit-text-stroke: 1.1px rgba(94, 67, 30, 0.5);
}

.piece.white {
  color: #fff6d8;
}

.piece.black {
  color: #05070b;
  text-shadow:
    -1px -1px 0 rgba(255, 255, 255, 0.28),
    1px 1px 0 #4a4f5a,
    2px 3px 0 #000,
    4px 7px 8px rgba(0, 0, 0, 0.62),
    0 13px 16px rgba(0, 0, 0, 0.44);
  -webkit-text-stroke: 1.1px rgba(237, 232, 218, 0.18);
}

.capture-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 6;
}

.flying-piece {
  position: absolute;
  display: grid;
  width: var(--piece-size);
  height: var(--piece-size);
  border: 0;
  border-radius: 0;
  place-items: center;
  color: #fff6d8;
  background: transparent;
  box-shadow: none;
  font-size: calc(var(--piece-size) * 0.82);
  font-weight: 950;
  transform: translate(-50%, -50%);
  animation: captureDrop 760ms cubic-bezier(0.2, 0.72, 0.28, 1) forwards;
  text-shadow:
    -1px -1px 0 #fffdf0,
    1px 1px 0 #b68d4d,
    2px 3px 0 #8f672e,
    4px 7px 8px rgba(34, 20, 6, 0.42);
  -webkit-text-stroke: 1px rgba(96, 70, 32, 0.54);
}

.moving-piece {
  position: absolute;
  display: grid;
  width: var(--piece-size);
  height: var(--piece-size);
  place-items: center;
  color: #fff6d8;
  font-size: calc(var(--piece-size) * 0.82);
  font-weight: 950;
  pointer-events: none;
  transform: translate(-50%, -50%);
  animation: movePiece 780ms cubic-bezier(0.2, 0.72, 0.28, 1) forwards;
  text-shadow:
    -1px -1px 0 #fffdf0,
    1px 1px 0 #b68d4d,
    2px 3px 0 #8f672e,
    4px 7px 8px rgba(34, 20, 6, 0.42);
  -webkit-text-stroke: 1px rgba(96, 70, 32, 0.54);
}

.flying-piece.black {
  color: #05070b;
  text-shadow:
    -1px -1px 0 rgba(255, 255, 255, 0.28),
    1px 1px 0 #4a4f5a,
    2px 3px 0 #000,
    4px 7px 8px rgba(0, 0, 0, 0.62);
  -webkit-text-stroke: 1px rgba(237, 232, 218, 0.18);
}

.moving-piece.black {
  color: #05070b;
  text-shadow:
    -1px -1px 0 rgba(255, 255, 255, 0.28),
    1px 1px 0 #4a4f5a,
    2px 3px 0 #000,
    4px 7px 8px rgba(0, 0, 0, 0.62);
  -webkit-text-stroke: 1px rgba(237, 232, 218, 0.18);
}

.smoke-poof {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--smoke-size);
  height: var(--smoke-size);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.45);
  animation: smokePoof 430ms ease-out forwards;
  background:
    radial-gradient(circle at 30% 38%, rgba(255, 255, 255, 0.9) 0 18%, transparent 19%),
    radial-gradient(circle at 62% 36%, rgba(226, 234, 246, 0.86) 0 22%, transparent 23%),
    radial-gradient(circle at 48% 66%, rgba(180, 194, 216, 0.68) 0 24%, transparent 25%);
}

.move-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 10px;
  min-height: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.move-panel p {
  margin: 4px 0 0;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.25;
}

#moveList {
  min-height: 0;
  margin: 0;
  padding-left: 30px;
  overflow: auto;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.toast {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  color: var(--yellow);
  font-size: 1.35rem;
  font-weight: 950;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  text-shadow: 0 4px 14px rgba(0, 0, 0, 0.55);
}

.toast.pop {
  animation: toastPop 760ms ease-out;
}

.small-button,
.primary-button,
.secondary-button,
.arcade-button,
.store-button {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 950;
  min-height: 46px;
}

.small-button {
  padding: 0 10px;
  background: var(--yellow);
  color: #121827;
}

.primary-button,
.secondary-button,
.arcade-button,
.store-button {
  width: 100%;
  margin-top: 12px;
  padding: 0 18px;
}

.primary-button {
  background: var(--blue);
  color: #081122;
}

.secondary-button {
  background: var(--yellow);
  color: #121827;
}

.arcade-button {
  background: #ffffff;
  color: #0d1222;
}

.store-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
}

.overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(4, 7, 14, 0.68);
  backdrop-filter: blur(10px);
}

.overlay.show {
  display: flex;
}

.panel {
  width: min(100%, 380px);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(18, 102, 255, 0.22), rgba(255, 92, 168, 0.08)),
    var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.4);
}

.kicker {
  margin: 0 0 6px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 950;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 8dvw, 3.25rem);
  line-height: 0.94;
}

.panel p:not(.kicker) {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.setup-controls {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.setup-controls label {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.setup-controls select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.92);
  color: #101827;
  font: inherit;
  font-weight: 850;
}

.win-form {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.win-form label,
.recent-wins h2 {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.initials-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.initials-row input {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.92);
  color: #101827;
  font: inherit;
  font-weight: 950;
  text-transform: uppercase;
}

.win-prompt {
  margin: 0;
  color: var(--yellow);
  font-weight: 850;
}

.recent-wins {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.recent-wins h2 {
  margin: 0 0 8px;
}

.recent-wins ol {
  max-height: 126px;
  margin: 0;
  padding-left: 24px;
  overflow: auto;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.35;
}

.recent-wins li {
  margin: 3px 0;
}

@keyframes toastPop {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.78);
  }
  20% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.08);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -90%) scale(1);
  }
}

@keyframes captureDrop {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(0.92);
  }
  18% {
    transform: translate(-50%, calc(-50% - 42px)) scale(1.12);
  }
  72% {
    opacity: 1;
    transform: translate(calc(var(--dx) - 50%), calc(var(--dy) - 50% - 12px)) scale(0.72) rotate(8deg);
  }
  100% {
    opacity: 0;
    transform: translate(calc(var(--dx) - 50%), calc(var(--dy) - 50%)) scale(0.52) rotate(0deg);
  }
}

@keyframes movePiece {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  42% {
    transform: translate(calc(var(--dx) * 0.48 - 50%), calc(var(--dy) * 0.48 - 50% - 18px)) scale(1.08);
  }
  100% {
    opacity: 0;
    transform: translate(calc(var(--dx) - 50%), calc(var(--dy) - 50%)) scale(1);
  }
}

@keyframes smokePoof {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.35);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.35);
  }
}

@media (max-height: 700px) {
  .game {
    min-height: 0;
    grid-template-rows: auto auto auto minmax(58px, 0.22fr) auto;
  }

  .move-panel {
    font-size: 0.82rem;
  }
}