:root {
  color-scheme: dark;
  --bg: #101318;
  --panel: #171b22;
  --panel-2: #202634;
  --ink: #f6efe5;
  --muted: #a99f91;
  --faint: #707772;
  --line: rgba(246,239,229,.14);
  --line-strong: rgba(246,239,229,.34);
  --gold: #f0b35a;
  --mint: #8bd7a6;
  --rose: #e88989;
  --blue: #8cb9ff;
  --violet: #b89cff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { min-height: 100%; background: var(--bg); color: var(--ink); }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 20px 16px 64px;
  background: linear-gradient(180deg, rgba(255,255,255,.035), transparent 280px), var(--bg);
}
a { color: inherit; }
button, input { font: inherit; }
.wrap { max-width: 1180px; margin: 0 auto; }
.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; margin-bottom: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: ui-serif, Georgia, serif; font-size: 22px; }
.game-logo { display: inline-grid; place-items: center; width: 44px; height: 44px; flex: 0 0 auto; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--panel-2); }
.game-logo img { width: 100%; height: 100%; object-fit: cover; }
.sub { margin-top: 3px; color: var(--muted); font-family: ui-monospace, monospace; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; }
.hub { color: var(--muted); font-family: ui-monospace, monospace; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; text-decoration: none; }
.hub:hover { color: var(--gold); }
.layout { display: grid; grid-template-columns: minmax(0,760px) minmax(180px,260px); gap: 160px; align-items: start; }
.day { color: var(--gold); font-family: ui-monospace, monospace; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 8px; }
h1 { font-family: ui-serif, Georgia, serif; font-size: clamp(34px,6vw,58px); line-height: 1.02; margin-bottom: 10px; }
.lead { color: #c9c0b4; max-width: 650px; font-size: 15px; line-height: 1.55; margin-bottom: 18px; }
.guide {
  margin: 0 0 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.035);
  padding: 14px;
}
.guide h2 {
  font-family: ui-serif, Georgia, serif;
  font-size: 22px;
  margin-bottom: 8px;
}
.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 10px;
}
.guide-card {
  border: 1px solid rgba(246,239,229,.1);
  border-radius: 10px;
  background: rgba(0,0,0,.12);
  padding: 10px;
}
.guide-card strong {
  display: block;
  color: var(--gold);
  font-size: 12px;
  font-family: ui-monospace, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 5px;
}
.guide-card span {
  display: block;
  color: #d5cbbd;
  font-size: 14px;
  line-height: 1.45;
}
.mock-play {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.mock-play h3 {
  color: var(--ink);
  font-size: 15px;
  margin-bottom: 8px;
}
.mock-play ol {
  margin-left: 20px;
  color: #d5cbbd;
  font-size: 14px;
  line-height: 1.55;
}
.mock-play li + li { margin-top: 4px; }
.mock-play code {
  color: var(--gold);
  font-family: ui-monospace, monospace;
  font-size: 13px;
}
.status-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; color: var(--muted); font-family: ui-monospace, monospace; font-size: 12px; }
.pill { border: 1px solid var(--line); border-radius: 999px; padding: 7px 10px; background: rgba(255,255,255,.035); }
.level-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: -4px 0 14px; }
.level-row label { color: var(--muted); font-family: ui-monospace, monospace; font-size: 12px; }
.level-row select { min-height: 38px; border: 1px solid var(--line); border-radius: 8px; background: #1b2029; color: var(--ink); padding: 0 10px; }
.level-row .level-progress { color: var(--muted); font-family: ui-monospace, monospace; font-size: 12px; }
.board-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 14px; overflow: auto; }
.message { min-height: 20px; color: var(--gold); font-size: 13px; font-family: ui-monospace, monospace; margin-bottom: 8px; }
.controls { display: flex; gap: 9px; flex-wrap: wrap; margin: 14px 0 22px; }
.btn { border: 1px solid var(--line); background: #1b2029; color: var(--ink); border-radius: 8px; cursor: pointer; min-height: 42px; padding: 10px 14px; }
.btn:hover, .btn.active { border-color: rgba(240,179,90,.55); color: var(--gold); }
.primary { background: var(--gold); color: #101318; border-color: var(--gold); font-weight: 750; }
.primary:hover { color: #101318; background: #f7c072; }
.completion { display: none; background: rgba(240,179,90,.08); border: 1px solid rgba(240,179,90,.28); border-radius: 14px; padding: 20px; margin: 18px 0; }
.completion.shown { display: block; }
.completion h2 { font-family: ui-serif, Georgia, serif; font-size: 30px; margin-bottom: 8px; }
.share { font-family: ui-monospace, monospace; font-size: 14px; line-height: 1.55; white-space: pre; background: #0a0c10; border: 1px dashed rgba(246,239,229,.22); border-radius: 8px; padding: 14px; margin: 14px 0; user-select: all; }
.mail { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 16px; }
.mail label { display: block; font-weight: 750; margin-bottom: 8px; }
.mail-row { display: flex; gap: 8px; flex-wrap: wrap; }
.mail input { flex: 1 1 220px; min-width: 0; background: #0a0c10; color: var(--ink); border: 1px solid var(--line); border-radius: 8px; padding: 11px 12px; }
.note { color: var(--muted); font-size: 12px; margin-top: 8px; line-height: 1.45; }
.ad-rail { position: sticky; top: 20px; display: flex; flex-direction: column; gap: 18px; }
.ad-slot { min-height: 280px; border: 1px dashed rgba(246,239,229,.24); border-radius: 10px; background: rgba(255,255,255,.035); display: grid; place-items: center; text-align: center; color: #7b817e; padding: 16px; font-size: 12px; line-height: 1.45; }
.ad-slot.mobile { display: none; min-height: 120px; margin: 28px 0; }
.related { margin-top: 24px; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.rel { border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.035); padding: 12px; text-decoration: none; color: var(--muted); }
.rel strong { display: block; color: var(--ink); margin-bottom: 4px; }
footer { margin-top: 28px; text-align: center; color: var(--muted); font-family: ui-monospace, monospace; font-size: 12px; }
.grid { display: grid; gap: 8px; width: fit-content; max-width: 100%; margin: 0 auto; }
.cell, .tile {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 86%, var(--blue) 7%);
  color: var(--ink);
  border-radius: 8px;
  cursor: pointer;
  display: grid;
  place-items: center;
  text-align: center;
  min-width: 0;
  user-select: none;
}
.cell { width: 100%; min-width: 34px; max-width: 58px; aspect-ratio: 1 / 1; height: auto; font-weight: 800; font-size: 18px; }
.tile { min-height: 74px; padding: 10px; font-weight: 750; line-height: 1.2; }
.cell.on, .tile.on, .cell.path { background: linear-gradient(135deg, var(--blue), var(--mint)); color: #101318; }
.cell.mark, .tile.found { background: rgba(139,215,166,.18); color: var(--mint); border-color: rgba(139,215,166,.45); }
.cell.wall { background: #0a0c10; color: #3f4650; cursor: default; }
.cell.start { background: var(--gold); color: #101318; }
.cell.end { background: var(--rose); color: #101318; }
.cell.bad, .tile.bad { color: var(--rose); animation: shake .22s; }
.tile.bad {
  border-color: color-mix(in srgb, var(--rose) 62%, var(--line));
  background: color-mix(in srgb, var(--rose) 16%, var(--panel));
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--rose) 30%, transparent);
}
@keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-2px)} 75%{transform:translateX(2px)} }
.pattern-grid { grid-template-columns: repeat(4, minmax(110px,1fr)); width: 100%; }
html[data-puzzle-theme] .tile {
  background: linear-gradient(135deg, color-mix(in srgb, var(--panel) 90%, white), color-mix(in srgb, var(--mint) 12%, var(--panel)));
  color: var(--ink);
  border-color: color-mix(in srgb, var(--line) 70%, var(--mint));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.68), 0 8px 18px color-mix(in srgb, var(--blue) 8%, transparent);
}
html[data-puzzle-theme] .tile.on {
  background: linear-gradient(135deg, var(--gold), var(--mint));
  color: #102018;
  border-color: color-mix(in srgb, var(--gold) 70%, var(--mint));
}
html[data-puzzle-theme] .tile.bad {
  background: color-mix(in srgb, var(--rose) 18%, var(--panel)) !important;
  border-color: color-mix(in srgb, var(--rose) 68%, var(--line)) !important;
  color: color-mix(in srgb, var(--ink) 72%, var(--rose)) !important;
}
.found-row { margin: 8px 0; padding: 10px 12px; border-radius: 8px; background: rgba(139,215,166,.12); color: var(--mint); font-size: 13px; }
.pick-clue { margin: 0 0 14px; padding: 12px 14px; border: 1px solid rgba(240,179,90,.3); border-radius: 10px; background: rgba(240,179,90,.08); color: var(--gold); font-family: ui-monospace, monospace; font-weight: 800; letter-spacing: .04em; text-align: center; }
.sum-helper {
  display: grid;
  gap: 8px;
  width: min(100%, 520px);
  margin: 0 auto 12px;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--blue) 26%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--blue) 9%, var(--panel));
}
.sum-slots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
}
.sum-slot {
  min-height: 38px;
  display: grid;
  place-items: center;
  border: 1px dashed color-mix(in srgb, var(--muted) 38%, transparent);
  border-radius: 10px;
  color: var(--muted);
  font-weight: 900;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.sum-slot.filled {
  border-style: solid;
  border-color: color-mix(in srgb, var(--mint) 62%, var(--line));
  background: color-mix(in srgb, var(--mint) 18%, var(--panel));
  color: var(--ink);
}
.sum-helper p {
  margin: 0;
  color: var(--muted);
  text-align: center;
  font-size: 12px;
  line-height: 1.35;
  font-weight: 750;
}
.letter-bank { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; margin-bottom: 14px; }
.side { border: 1px solid var(--line); border-radius: 10px; padding: 12px; background: #11161d; text-align: center; }
.side span { display: inline-grid; place-items: center; width: 34px; height: 34px; margin: 3px; border-radius: 8px; background: #202634; font-weight: 800; }
.word-list { color: var(--muted); font-family: ui-monospace, monospace; font-size: 13px; line-height: 1.7; }
@media (max-width: 980px) { .layout { display: block; } .ad-rail { display: none; } .ad-slot.mobile { display: grid; } }
@media (max-width: 560px) {
  body { padding: 16px 8px 48px; }
  .board-card { padding: 8px; }
  .cell { width: 39px; height: 39px; font-size: 15px; border-radius: 6px; }
  .guide-grid { grid-template-columns: 1fr; }
  .pattern-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .tile { min-height: 64px; font-size: 13px; }
  .letter-bank { grid-template-columns: repeat(2,1fr); }
  .related { grid-template-columns: 1fr; }
}

body:not([data-show-ad-slots="true"]) .ad-rail,
body:not([data-show-ad-slots="true"]) .ad-slot {
  display: none !important;
}

body:not([data-show-email-capture="true"]) .mail {
  display: none !important;
}

/* Juicy arcade layer: shared shell, board-first, mobile-first. */
.arcade-shell {
  --cell-size: clamp(42px, 13vw, 58px);
  --stage-glow: color-mix(in srgb, var(--blue) 18%, transparent);
}
.arcade-shell .top {
  align-items: center;
  margin-bottom: 10px;
}
.arcade-shell h1 {
  max-width: 760px;
  font-size: clamp(30px, 5vw, 52px);
  letter-spacing: 0;
}
.arcade-shell .lead {
  max-width: 720px;
  margin-bottom: 10px;
}
.guide-drawer {
  padding: 0;
  overflow: hidden;
}
.guide-drawer details {
  padding: 0;
}
.guide-drawer summary {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  touch-action: manipulation;
}
.guide-drawer summary::-webkit-details-marker { display: none; }
.guide-drawer summary span {
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.guide-drawer summary strong {
  color: var(--ink);
  font-size: 13px;
}
.guide-drawer details[open] {
  padding-bottom: 14px;
}
.guide-drawer .guide-grid,
.guide-drawer .mock-play {
  margin-left: 14px;
  margin-right: 14px;
}
.arcade-stage {
  position: relative;
  display: grid;
  gap: 10px;
  margin: 12px 0 16px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--line-strong) 88%, transparent);
  border-radius: 20px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--panel) 92%, white), color-mix(in srgb, var(--panel-2) 78%, white)),
    var(--panel);
  box-shadow: 0 20px 70px var(--stage-glow);
}
.arcade-stage > * {
  min-width: 0;
}
.play-prompt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--mint) 24%, var(--line));
  border-radius: 16px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--mint) 18%, transparent), color-mix(in srgb, var(--gold) 14%, transparent)),
    color-mix(in srgb, var(--panel) 88%, transparent);
  min-width: 0;
  max-width: 100%;
}
.play-prompt div {
  min-width: 0;
}
.play-prompt strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.15;
}
.prompt-kicker {
  display: block;
  margin-bottom: 4px;
  color: var(--mint);
  font-family: ui-monospace, monospace;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.rule-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.rule-steps b {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--gold) 16%, var(--panel));
  color: var(--ink);
  font-size: 11px;
  font-weight: 900;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18);
}
.rule-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 9px;
}
.rule-strip span {
  display: grid;
  gap: 3px;
  min-width: 0;
  min-height: 48px;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--line) 78%, var(--mint));
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 82%, white);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}
.rule-strip b {
  color: var(--gold);
  font-family: ui-monospace, monospace;
  font-size: 10px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.btn.mini {
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 999px;
}
.level-map {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  contain: paint;
  padding: 2px 2px 4px;
  scrollbar-width: none;
}
.level-map::-webkit-scrollbar { display: none; }
.level-map > span {
  flex: 0 0 auto;
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.level-map > div {
  display: flex;
  gap: 6px;
}
.level-dot {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 74%, var(--blue) 10%);
  color: var(--muted);
  cursor: pointer;
  font: 900 11px/1 ui-monospace, monospace;
  touch-action: manipulation;
}
.level-dot.done {
  background: color-mix(in srgb, var(--mint) 72%, var(--panel));
  border-color: color-mix(in srgb, var(--mint) 68%, var(--ink));
  color: #102018;
}
.level-dot.current {
  transform: translateY(-1px);
  background: var(--gold);
  border-color: color-mix(in srgb, var(--gold) 72%, var(--ink));
  color: #231600;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--gold) 28%, transparent);
}
.arcade-stage .status-row {
  margin-bottom: 0;
}
.arcade-stage .pill {
  background: color-mix(in srgb, var(--panel) 80%, white);
  color: var(--ink);
  font-weight: 800;
}
.arcade-stage .level-row {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 74%, transparent);
}
.arcade-stage .level-row select {
  min-height: 42px;
  width: min(240px, 100%);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 92%, white) !important;
  color: var(--ink) !important;
  touch-action: manipulation;
}
.arcade-stage .board-card {
  position: relative;
  min-height: auto;
  margin-bottom: 0;
  overflow: visible;
  border-radius: 18px;
  background:
    radial-gradient(circle at 20% 10%, color-mix(in srgb, var(--gold) 16%, transparent), transparent 32%),
    radial-gradient(circle at 90% 0%, color-mix(in srgb, var(--mint) 18%, transparent), transparent 34%),
    color-mix(in srgb, var(--panel) 92%, white);
}
html[data-puzzle-theme] .arcade-stage,
html[data-puzzle-theme] .arcade-stage .board-card,
html[data-puzzle-theme] .arcade-stage .play-prompt,
html[data-puzzle-theme] .arcade-stage .level-row {
  border-color: var(--line) !important;
  color: var(--ink) !important;
}
html[data-puzzle-theme] .arcade-stage .board-card {
  background:
    radial-gradient(circle at 20% 10%, color-mix(in srgb, var(--gold) 18%, transparent), transparent 34%),
    radial-gradient(circle at 90% 0%, color-mix(in srgb, var(--mint) 18%, transparent), transparent 36%),
    color-mix(in srgb, var(--panel) 94%, white) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.55), 0 16px 42px color-mix(in srgb, var(--blue) 12%, transparent) !important;
}
.arcade-stage .message {
  min-height: 28px;
  margin-bottom: 0;
  padding: 8px 10px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--gold) 12%, transparent);
  color: color-mix(in srgb, var(--ink) 72%, var(--gold));
  font-weight: 900;
}
.arcade-stage .controls {
  position: relative;
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 88%, white);
}
.arcade-stage .btn {
  min-height: 44px;
  border-radius: 12px;
  font-weight: 850;
  touch-action: manipulation;
}
.trail-meter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0 auto 10px;
  width: min(100%, calc(var(--cell-size) * 5 + 32px));
  color: var(--muted);
  font-size: 12px;
}
.trail-meter strong {
  color: var(--ink);
}
.trail-grid {
  gap: 7px;
  width: fit-content;
  max-width: 100%;
  padding: 8px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel-2) 42%, transparent);
}
.cell {
  touch-action: manipulation;
  transition: transform .14s cubic-bezier(.22,1,.36,1), box-shadow .14s cubic-bezier(.22,1,.36,1), background .14s cubic-bezier(.22,1,.36,1);
}
.cell:hover {
  transform: translateY(-1px);
}
.cell.path {
  background: linear-gradient(135deg, var(--blue), var(--mint));
  color: #102018;
  border-color: color-mix(in srgb, var(--mint) 72%, var(--blue));
  box-shadow: inset 0 -3px 0 rgba(0,0,0,.12);
}
.cell.next {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--gold) 70%, var(--line));
  background: color-mix(in srgb, var(--gold) 24%, var(--panel));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--gold) 18%, transparent);
  animation: nextPulse 1.35s ease-in-out infinite;
}
.cell.trail-head {
  position: relative;
  transform: translateY(-2px) scale(1.04);
  background: var(--gold);
  color: #231600;
  box-shadow: 0 10px 26px color-mix(in srgb, var(--gold) 38%, transparent);
}
.cell.trail-head::after {
  content: "";
  position: absolute;
  inset: -6px;
  border: 2px solid color-mix(in srgb, var(--gold) 54%, transparent);
  border-radius: inherit;
  pointer-events: none;
}
.cell.start,
.cell.end {
  font-weight: 950;
}
.spark-pop {
  position: absolute;
  left: 50%;
  top: 42%;
  z-index: 10;
  min-width: 92px;
  padding: 9px 12px;
  border-radius: 999px;
  background: var(--mint);
  color: #102018;
  text-align: center;
  font-weight: 950;
  box-shadow: 0 18px 44px color-mix(in srgb, var(--mint) 34%, transparent);
  transform: translate(-50%, -50%) scale(.86);
  pointer-events: none;
  animation: sparkPop .72s cubic-bezier(.34,1.56,.64,1) forwards;
}
.spark-pop.bad {
  background: var(--rose);
  color: #fff7f8;
}
.spark-pop.soft {
  background: var(--blue);
  color: #071c39;
}
.spark-pop.win {
  background: var(--gold);
  color: #231600;
  font-size: 18px;
}
@keyframes nextPulse {
  0%, 100% { box-shadow: 0 0 0 3px color-mix(in srgb, var(--gold) 14%, transparent); }
  50% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--gold) 28%, transparent); }
}
@keyframes sparkPop {
  0% { opacity: 0; transform: translate(-50%, -28%) scale(.78); }
  22% { opacity: 1; transform: translate(-50%, -55%) scale(1.06); }
  100% { opacity: 0; transform: translate(-50%, -96%) scale(.9); }
}
@media (prefers-reduced-motion: reduce) {
  .cell,
  .cell.next,
  .spark-pop {
    animation: none !important;
    transition: none !important;
  }
}
@media (max-width: 560px) {
  .arcade-shell {
    --cell-size: clamp(40px, 15.1vw, 50px);
  }
  .arcade-shell body,
  body.arcade-shell {
    padding: 10px 8px 46px;
  }
  .arcade-shell .top {
    margin-bottom: 6px;
  }
  .arcade-shell .game-logo,
  .arcade-shell .ph-game-logo {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }
  .arcade-shell h1 {
    margin-bottom: 6px;
    font-size: clamp(24px, 7.4vw, 30px);
    line-height: 1.02;
  }
  .arcade-shell .lead {
    display: none;
  }
  .guide-drawer { margin-bottom: 8px; }
  .guide-drawer summary {
    min-height: 42px;
    padding: 9px 11px;
  }
  .arcade-stage {
    gap: 8px;
    margin-top: 8px;
    padding: 8px;
    border-radius: 18px;
  }
  .play-prompt {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 50px;
    padding: 9px 10px;
    border-radius: 14px;
  }
  .play-prompt strong {
    font-size: 13px;
  }
  .level-map {
    gap: 8px;
  }
  .level-map > span {
    display: none;
  }
  .level-dot {
    width: 29px;
    height: 29px;
    flex-basis: 29px;
  }
  .arcade-stage .status-row {
    gap: 6px;
    font-size: 10px;
  }
  .arcade-stage .pill {
    padding: 6px 8px;
  }
  .arcade-stage .level-row { display: none; }
  .arcade-stage .board-card {
    padding: 6px;
  }
  .trail-grid {
    gap: 5px;
    padding: 6px;
  }
  .arcade-stage .cell {
    min-width: 0;
    max-width: var(--cell-size);
    border-radius: 10px;
    font-size: 15px;
  }
  .trail-meter {
    margin-bottom: 7px;
    width: min(100%, calc(var(--cell-size) * 5 + 24px));
    font-size: 11px;
  }
  .arcade-stage .controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 6px;
  }
  .rule-strip {
    display: none;
  }
  .rule-strip span {
    min-height: 0;
    padding: 7px 8px;
    font-size: 11px;
  }
  .arcade-stage .btn {
    min-height: 42px;
    padding: 8px;
  }
  .play-prompt [data-focus-board] {
    width: 100%;
  }
  .spark-pop {
    top: 48%;
  }
}