:root {
  --bg0: #05010a;
  --bg1: #0b0220;
  --bg2: #14043a;
  --ink: #f2eaff;
  --muted: rgba(242, 234, 255, 0.72);
  --glass: rgba(255, 255, 255, 0.06);
  --stroke: rgba(255, 255, 255, 0.12);
  --hot: #c8ff69;
  --bad: #ff4d87;
  --p1: #5b21b6;
  --p2: #7c3aed;
  --p3: #c026d3;
  --p4: #22d3ee;
  --sol1: #c8ff69;
  --sol2: #41e6ff;
  --sol3: #ff4dd8;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 720px at 18% 10%, rgba(124, 58, 237, 0.22), transparent 58%),
    radial-gradient(980px 620px at 92% 16%, rgba(192, 38, 211, 0.16), transparent 62%),
    radial-gradient(980px 520px at 40% 98%, rgba(34, 211, 238, 0.12), transparent 62%),
    linear-gradient(180deg, var(--bg0), var(--bg1) 58%, var(--bg2));
  font-family: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  letter-spacing: 0.2px;
  overflow-x: hidden;
}

.bg {
  position: fixed;
  inset: -40px;
  pointer-events: none;
  background:
    radial-gradient(720px 380px at 16% 22%, rgba(124, 58, 237, 0.18), transparent 62%),
    radial-gradient(860px 420px at 88% 68%, rgba(192, 38, 211, 0.14), transparent 64%),
    radial-gradient(520px 360px at 56% 14%, rgba(34, 211, 238, 0.10), transparent 62%),
    radial-gradient(560px 420px at 40% 82%, rgba(255, 77, 216, 0.06), transparent 64%);
  filter: blur(0.6px);
  opacity: 0.95;
  animation: drift 14s ease-in-out infinite;
}

@keyframes drift {
  0% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
  50% {
    transform: translate3d(0, -10px, 0) rotate(0.3deg);
  }
  100% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
}

.shell {
  width: min(980px, calc(100% - 28px));
  margin: 32px auto;
  position: relative;
}

.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 2px 14px;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.06;
  letter-spacing: -0.7px;
}

.sub {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.sub strong {
  color: rgba(242, 234, 255, 0.95);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 10px;
  padding: 10px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--stroke);
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(10px);
}

.stat {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.label {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 11px;
  color: rgba(242, 234, 255, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.value {
  margin-top: 6px;
  font-weight: 700;
  font-size: 18px;
}

.card {
  margin-top: 10px;
  position: relative;
  padding: 16px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: -2px;
  background:
    radial-gradient(420px 260px at 15% 20%, rgba(168, 85, 247, 0.18), transparent 60%),
    radial-gradient(380px 260px at 85% 70%, rgba(124, 58, 237, 0.18), transparent 58%),
    radial-gradient(340px 240px at 55% 10%, rgba(34, 211, 238, 0.12), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  z-index: 1;
  margin-bottom: 12px;
}

.leftTools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.menuScreen {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.menuScreen[hidden],
.stage[hidden] {
  display: none !important;
}

.menuCard {
  appearance: none;
  text-align: left;
  display: grid;
  gap: 8px;
  min-height: 148px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--ink);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  box-shadow: 0 18px 24px rgba(0, 0, 0, 0.22);
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, filter 120ms ease;
}

.menuCard:hover {
  transform: translateY(-2px);
  filter: saturate(1.05);
}

.menuCard strong {
  font-size: 18px;
  line-height: 1.1;
}

.menuCard span:last-child {
  color: rgba(242, 234, 255, 0.74);
  font-size: 13px;
  line-height: 1.35;
}

.menuEyebrow {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242, 234, 255, 0.68);
}

.menuBlue {
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.18), rgba(124, 58, 237, 0.08));
}

.menuGreen {
  background: linear-gradient(180deg, rgba(200, 255, 105, 0.18), rgba(34, 197, 94, 0.08));
}

.menuRed {
  background: linear-gradient(180deg, rgba(255, 77, 135, 0.18), rgba(239, 68, 68, 0.08));
}

.menuPink {
  background: linear-gradient(180deg, rgba(255, 77, 216, 0.18), rgba(168, 85, 247, 0.08));
}

.menuOrange {
  background: linear-gradient(180deg, rgba(251, 146, 60, 0.18), rgba(245, 158, 11, 0.08));
}

.menuYellow {
  background: linear-gradient(180deg, rgba(250, 204, 21, 0.18), rgba(245, 158, 11, 0.08));
}

.field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.14);
}

.fieldLabel {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242, 234, 255, 0.70);
}

.stage {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 14px;
  align-items: start;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.14);
  user-select: none;
}

.toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.track {
  width: 44px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.04));
  box-shadow: 0 12px 18px rgba(0, 0, 0, 0.24);
  display: inline-grid;
  align-items: center;
  padding: 2px;
}

.thumb {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: radial-gradient(14px 14px at 30% 30%, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.12));
  border: 1px solid rgba(255, 255, 255, 0.18);
  transform: translateX(0);
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.toggleText {
  font-size: 13px;
  color: rgba(242, 234, 255, 0.80);
}

.toggle input:checked + .track {
  border-color: rgba(124, 58, 237, 0.55);
}

.toggle input:checked + .track .thumb {
  transform: translateX(18px);
  background: radial-gradient(14px 14px at 30% 30%, rgba(200, 255, 105, 0.8), rgba(200, 255, 105, 0.15));
  border-color: rgba(200, 255, 105, 0.55);
}

.hint {
  color: rgba(242, 234, 255, 0.78);
  font-size: 13px;
  user-select: none;
}

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
  color: var(--ink);
  border-radius: 14px;
  padding: 10px 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.22);
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, filter 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(168, 85, 247, 0.55);
}

.btn:active {
  transform: translateY(0px) scale(0.99);
}

.btnPrimary {
  border-color: rgba(199, 255, 94, 0.45);
  background: linear-gradient(180deg, rgba(199, 255, 94, 0.24), rgba(199, 255, 94, 0.08));
}

.grid {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  grid-template-rows: repeat(6, 1fr);
  gap: 6px;
  padding: 12px;
  border-radius: 8px;
  background: linear-gradient(180deg, #6c6c6c, #535353);
  border: 4px solid #2f2f2f;
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.12), inset 0 -2px 0 rgba(0, 0, 0, 0.28), 0 18px 24px rgba(0, 0, 0, 0.28);
}

.tile {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  border-radius: 2px;
  border: 2px solid #171717;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04) 30%, rgba(0, 0, 0, 0.10)),
    linear-gradient(180deg, #8b8b8b, #666666);
  color: rgba(242, 234, 255, 0.96);
  font-weight: 900;
  font-size: clamp(10px, 1.2vw, 14px);
  letter-spacing: 0;
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.15), inset 0 -2px 0 rgba(0, 0, 0, 0.24), 0 1px 0 rgba(0, 0, 0, 0.32);
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
  transition: transform 90ms ease, filter 90ms ease, opacity 90ms ease;
  overflow: hidden;
}

.tile:hover {
  transform: translateY(-1px);
}

.tile:active {
  transform: translateY(0px);
}

.tile:focus-visible {
  outline: 3px solid rgba(34, 211, 238, 0.6);
  outline-offset: 2px;
}

.tile.black {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02) 28%, rgba(0, 0, 0, 0.14)),
    linear-gradient(180deg, #262626, #171717);
  border-color: #0f0f0f;
  box-shadow: none;
  cursor: default;
}

.tile.black:hover {
  transform: none;
}

.tile.red {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.05) 28%, rgba(0, 0, 0, 0.08)),
    linear-gradient(180deg, #c74b5f, #8f2d3f);
  border-color: #5f1723;
}

.tile.green {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.05) 28%, rgba(0, 0, 0, 0.08)),
    linear-gradient(180deg, #8fbc3c, #5f8421);
  border-color: #425b13;
}

.tile.orange {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.05) 28%, rgba(0, 0, 0, 0.08)),
    linear-gradient(180deg, #cc8444, #9f5620);
  border-color: #693611;
}

.tile.yellow {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.05) 28%, rgba(0, 0, 0, 0.08)),
    linear-gradient(180deg, #d4b448, #9d7d17);
  border-color: #6b5410;
}

.tile.blue {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.05) 28%, rgba(0, 0, 0, 0.08)),
    linear-gradient(180deg, #5c86c9, #2b4f95);
  border-color: #1d3361;
}

.tile.magenta {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.05) 28%, rgba(0, 0, 0, 0.08)),
    linear-gradient(180deg, #c26fd0, #8d399f);
  border-color: #5d2369;
}

.tile.white {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.08) 28%, rgba(0, 0, 0, 0.06)),
    linear-gradient(180deg, #d6d6d6, #a9a9a9);
  border-color: #7a7a7a;
}

.tile.gray {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04) 28%, rgba(0, 0, 0, 0.10)),
    linear-gradient(180deg, #8b8b8b, #666666);
  border-color: #454545;
}

.tile.black:not(.solver-good):not(.solver-good-2):not(.solver-good-3):not(.solver-bad) {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01) 28%, rgba(0, 0, 0, 0.16)),
    linear-gradient(180deg, #2d2d2d, #171717);
  border-color: #101010;
}

.tile.brown {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04) 28%, rgba(0, 0, 0, 0.10)),
    linear-gradient(180deg, #8f5a33, #5f341c);
  border-color: #3f2211;
}

.tile.selected::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  box-shadow: inset 0 0 0 2px rgba(242, 234, 255, 0.20), inset 0 0 26px rgba(242, 234, 255, 0.10);
  pointer-events: none;
}

.tileIconWrap {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.tileIcon {
  width: 82%;
  height: 82%;
  object-fit: contain;
  image-rendering: pixelated;
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.35));
}

.tile.has-pane-texture {
  background: linear-gradient(180deg, #3a3a3a, #2a2a2a);
  border-color: #171717;
}

.tile.has-pane-texture .tileIcon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none;
}

.tile.has-pane-texture .tileLabel {
  display: none;
}

.tile.has-pane-texture.count-style .tileLabel {
  display: block;
}

.tile.has-pane-texture.solver-count .tileLabel {
  display: block;
}

.tile.has-pane-texture.solver-good .tileIcon,
.tile.has-pane-texture.solver-good-2 .tileIcon,
.tile.has-pane-texture.solver-good-3 .tileIcon,
.tile.has-pane-texture.solver-bad .tileIcon {
  display: none;
}

.tileLabel {
  position: absolute;
  left: 3px;
  right: 3px;
  bottom: 2px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: clamp(8px, 0.9vw, 10px);
  color: rgba(245, 245, 245, 0.92);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.75);
  pointer-events: none;
}

.tile.count-style .tileLabel {
  left: auto;
  right: 3px;
  bottom: 1px;
  width: auto;
  text-align: right;
  font-size: clamp(12px, 1.2vw, 16px);
  font-weight: 900;
  color: #ffffff;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.9), 0 0 2px rgba(0, 0, 0, 0.9);
  background: none;
  padding: 0;
}

.tile.solver-count .tileLabel {
  left: auto;
  right: 4px;
  bottom: 2px;
  width: auto;
  text-align: right;
  font-size: clamp(11px, 1.1vw, 15px);
  font-weight: 900;
  color: #ffffff;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.95), 0 0 2px rgba(0, 0, 0, 0.95);
  background: none;
  padding: 0;
}

.tile.has-pane-texture.count-style .tileLabel {
  display: block;
  right: 4px;
  bottom: 2px;
}

.tileLabel:not(:empty) {
  background: rgba(0, 0, 0, 0.34);
  border-radius: 3px;
  padding: 0 2px;
}

.tile.solver-good:not(.correct) {
  background: linear-gradient(180deg, #8fbc3c, #5f8421) !important;
  border-color: #425b13;
  box-shadow: 0 10px 14px rgba(0, 0, 0, 0.26), 0 0 28px rgba(200, 255, 105, 0.22), inset 0 0 0 2px rgba(240, 255, 210, 0.18);
  color: transparent;
}

.tile.solver-good-2:not(.correct) {
  background: linear-gradient(180deg, #6fae2f, #457017) !important;
  border-color: #2f4d11;
  box-shadow: 0 10px 14px rgba(0, 0, 0, 0.26), 0 0 22px rgba(111, 174, 47, 0.18), inset 0 0 0 2px rgba(220, 248, 188, 0.14);
  color: transparent;
}

.tile.solver-good-3:not(.correct) {
  background: linear-gradient(180deg, #4f8a20, #2f5710) !important;
  border-color: #233c0d;
  box-shadow: 0 10px 14px rgba(0, 0, 0, 0.26), 0 0 18px rgba(79, 138, 32, 0.16), inset 0 0 0 2px rgba(199, 235, 170, 0.12);
  color: transparent;
}

.tile.solver-bad:not(.correct) {
  background: linear-gradient(180deg, #c74b5f, #8f2d3f) !important;
  border-color: #5f1723;
  box-shadow: 0 10px 14px rgba(0, 0, 0, 0.26), 0 0 18px rgba(255, 77, 135, 0.08);
  color: transparent;
}

.tile.solver-good .tileIcon,
.tile.solver-good-2 .tileIcon,
.tile.solver-good-3 .tileIcon,
.tile.solver-bad .tileIcon,
.tile.solver-good .tileLabel,
.tile.solver-good-2 .tileLabel,
.tile.solver-good-3 .tileLabel,
.tile.solver-bad .tileLabel {
  display: none;
}

.board {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(0, 0, 0, 0.14);
  padding: 12px;
  box-shadow: 0 18px 24px rgba(0, 0, 0, 0.20);
}

.boardTop {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.boardControls {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.boardMode {
  flex: 1;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.22);
  color: rgba(242, 234, 255, 0.9);
  border-radius: 12px;
  padding: 8px 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 12px;
  box-shadow: 0 12px 18px rgba(0, 0, 0, 0.18);
}

.select {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.22);
  color: rgba(242, 234, 255, 0.90);
  border-radius: 12px;
  padding: 8px 30px 8px 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 12px;
  cursor: pointer;
  box-shadow: 0 12px 18px rgba(0, 0, 0, 0.18);
  background-image: linear-gradient(45deg, transparent 50%, rgba(242, 234, 255, 0.75) 50%),
    linear-gradient(135deg, rgba(242, 234, 255, 0.75) 50%, transparent 50%);
  background-position: calc(100% - 16px) 12px, calc(100% - 11px) 12px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  flex: 1;
  min-width: 0;
}

.select:focus-visible {
  outline: 3px solid rgba(124, 58, 237, 0.65);
  outline-offset: 2px;
}

.boardTitle {
  font-weight: 800;
  letter-spacing: -0.3px;
}

.boardSub {
  margin-top: 6px;
  color: rgba(242, 234, 255, 0.70);
  font-size: 12px;
  line-height: 1.3;
}

.boardList {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.boardProfile {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 8px;
}

.boardProfileLabel {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 11px;
  color: rgba(242, 234, 255, 0.72);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.boardProfileNote {
  color: rgba(242, 234, 255, 0.66);
  font-size: 12px;
  line-height: 1.3;
}

.row {
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.rank {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 12px;
  color: rgba(242, 234, 255, 0.70);
}

.who {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.when {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-weight: 800;
}

.btnSmall {
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 13px;
}

.tile.sol1:not(.correct) {
  border-color: rgba(200, 255, 105, 0.94);
  box-shadow: 0 18px 24px rgba(0, 0, 0, 0.26), 0 0 0 5px rgba(200, 255, 105, 0.30),
    0 0 92px rgba(200, 255, 105, 0.32), inset 0 0 0 1px rgba(200, 255, 105, 0.28),
    inset 0 0 56px rgba(200, 255, 105, 0.14);
  background:
    radial-gradient(180px 130px at 26% 20%, rgba(200, 255, 105, 0.32), transparent 60%),
    radial-gradient(170px 130px at 76% 76%, rgba(124, 58, 237, 0.24), transparent 62%),
    conic-gradient(from 220deg at 45% 40%, rgba(34, 211, 238, 0.10), rgba(124, 58, 237, 0.10), rgba(255, 77, 216, 0.10), rgba(34, 211, 238, 0.10));
  transform: translateY(-2px);
  animation: solPulse 900ms ease-in-out infinite;
}

.tile.sol2:not(.correct) {
  border-color: rgba(65, 230, 255, 0.90);
  box-shadow: 0 18px 24px rgba(0, 0, 0, 0.26), 0 0 0 5px rgba(65, 230, 255, 0.24),
    0 0 84px rgba(65, 230, 255, 0.26), inset 0 0 0 1px rgba(65, 230, 255, 0.22),
    inset 0 0 52px rgba(65, 230, 255, 0.12);
  background:
    radial-gradient(180px 130px at 26% 20%, rgba(65, 230, 255, 0.26), transparent 60%),
    radial-gradient(170px 130px at 76% 76%, rgba(124, 58, 237, 0.22), transparent 62%),
    conic-gradient(from 220deg at 45% 40%, rgba(34, 211, 238, 0.12), rgba(124, 58, 237, 0.10), rgba(255, 77, 216, 0.10), rgba(34, 211, 238, 0.12));
}

.tile.sol3:not(.correct) {
  border-color: rgba(255, 77, 216, 0.88);
  box-shadow: 0 18px 24px rgba(0, 0, 0, 0.26), 0 0 0 5px rgba(255, 77, 216, 0.22),
    0 0 76px rgba(255, 77, 216, 0.24), inset 0 0 0 1px rgba(255, 77, 216, 0.20),
    inset 0 0 46px rgba(255, 77, 216, 0.10);
  background:
    radial-gradient(180px 130px at 26% 20%, rgba(255, 77, 216, 0.22), transparent 60%),
    radial-gradient(170px 130px at 76% 76%, rgba(124, 58, 237, 0.22), transparent 62%),
    conic-gradient(from 220deg at 45% 40%, rgba(34, 211, 238, 0.10), rgba(124, 58, 237, 0.10), rgba(255, 77, 216, 0.12), rgba(34, 211, 238, 0.10));
}

.tile.sol1:not(.correct)::after,
.tile.sol2:not(.correct)::after,
.tile.sol3:not(.correct)::after {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 26px;
  height: 26px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: rgba(5, 1, 10, 0.96);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.42), 0 0 0 2px rgba(255, 255, 255, 0.12);
}

.tile.sol1:not(.correct)::after {
  content: "1";
  background: rgba(200, 255, 105, 0.95);
}

.tile.sol2:not(.correct)::after {
  content: "2";
  background: rgba(65, 230, 255, 0.94);
}

.tile.sol3:not(.correct)::after {
  content: "3";
  background: rgba(255, 77, 216, 0.92);
}

@keyframes solPulse {
  0% {
    filter: saturate(1.02);
  }
  50% {
    filter: saturate(1.18) brightness(1.04);
  }
  100% {
    filter: saturate(1.02);
  }
}

/* (tile interactions are defined earlier for the minecraft-style grid) */

.tile.correct {
  opacity: 0.28;
  filter: grayscale(0.75) saturate(0.25) brightness(0.82);
  transform: translateY(0px);
  cursor: default;
}

.tile.count-style.correct {
  opacity: 1;
  filter: none;
}

.tile.correct:hover {
  transform: translateY(0px);
  filter: grayscale(0.75) saturate(0.25) brightness(0.82);
}

.tile.count-style.correct:hover {
  filter: none;
}

.tile.correct::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(199, 255, 94, 0.28), inset 0 0 28px rgba(199, 255, 94, 0.08);
  pointer-events: none;
}

.finish {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 10px;
  padding: 24px;
  background: radial-gradient(600px 340px at 50% 40%, rgba(7, 4, 11, 0.35), rgba(7, 4, 11, 0.72));
  z-index: 2;
}

.input {
  appearance: none;
  width: 100%;
  border-radius: 14px;
  padding: 11px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.22);
  color: rgba(242, 234, 255, 0.95);
  font-weight: 700;
  letter-spacing: 0.2px;
}

.inputCompact {
  padding: 10px 11px;
  font-size: 14px;
}

.input::placeholder {
  color: rgba(242, 234, 255, 0.55);
}

.input:focus-visible {
  outline: 3px solid rgba(124, 58, 237, 0.65);
  outline-offset: 2px;
}

.submitNote {
  width: min(520px, 100%);
  text-align: center;
  color: rgba(242, 234, 255, 0.72);
  font-size: 12px;
  line-height: 1.3;
}

/* Ensure the HTML `hidden` attribute actually hides it.
   (Author CSS like `.finish { display: grid; }` overrides the UA `[hidden]` rule.) */
.finish[hidden] {
  display: none !important;
}

.finishTitle {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.6px;
}

.finishMeta {
  color: rgba(242, 234, 255, 0.78);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

.foot {
  margin-top: 14px;
  padding: 10px 2px;
  color: rgba(242, 234, 255, 0.66);
  font-size: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.sep {
  opacity: 0.5;
}

@media (max-width: 820px) {
  .top {
    flex-direction: column;
    align-items: stretch;
  }
  .stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .stage {
    grid-template-columns: 1fr;
  }
  .menuScreen {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .menuScreen {
    grid-template-columns: 1fr;
  }
  .stage {
    grid-template-columns: 1fr;
  }
  .grid {
    gap: 10px;
  }
  .tile {
    border-radius: 16px;
  }
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bg {
    animation: none;
  }
  .tile,
  .btn {
    transition: none;
  }

  .tile.sol1:not(.correct) {
    animation: none;
  }
}