:root {
  --bg: #f4f1ea;
  --panel: #ffffff;
  --text: #2b2620;
  --muted: #7a7166;
  --border: #e2dccf;
  --light-sq: #f0d9b5;
  --dark-sq: #b58863;
  --accent: #3d7a4f;
  --accent-text: #ffffff;
  --last-move: rgba(205, 210, 60, 0.55);
  --selected: rgba(20, 85, 30, 0.45);
  --hint: rgba(20, 85, 30, 0.35);
  --check: radial-gradient(circle, rgba(230, 30, 30, 0.9) 0%, rgba(230, 30, 30, 0.4) 45%, transparent 75%);
  --danger: #b33a3a;
  --radius: 10px;
  --cp-bg: #fff1e0;
  --cp-border: #f6d3a8;
  --cp-text: #5a3b14;
  --cp-head: #a2601a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1d1b19;
    --panel: #2a2724;
    --text: #ece6dc;
    --muted: #a1978a;
    --border: #3d3934;
    --light-sq: #d8c3a0;
    --dark-sq: #8f6a4a;
    --accent: #5aa86f;
    --danger: #e06666;
    --cp-bg: #3a2a18;
    --cp-border: #6b4a24;
    --cp-text: #f3dcc0;
    --cp-head: #f0a95a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flow-root; /* keeps the screens' top margins inside the page (no extra scroll) */
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}

button {
  font: inherit;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
button:hover:not(:disabled) { filter: brightness(0.95); }
button:disabled { opacity: 0.45; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

[hidden] { display: none !important; }

/* Lobby */
.lobby {
  max-width: 420px;
  margin: 18vh auto 0;
  padding: 0 16px;
  text-align: center;
}
.lobby h1 { font-size: 40px; margin: 0 0 8px; }
.lobby p { color: var(--muted); }
.lobby .primary { font-size: 18px; padding: 12px 28px; }
.error, .lobby .error { color: var(--danger); min-height: 1.4em; }
.name-field { margin: 20px auto 14px; max-width: 260px; text-align: left; }
.name-field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.name-field input {
  width: 100%; font: inherit; font-size: 16px; padding: 10px 12px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--panel); color: var(--text);
}
.name-field input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
a.button {
  display: inline-block; text-decoration: none; padding: 10px 20px; border-radius: 8px; margin-top: 8px;
}
a.button.primary { background: var(--accent); color: var(--accent-text); }
#gate-invite { color: var(--text); font-size: 17px; }
button.link { border: none; background: none; color: var(--muted); margin-top: 12px; text-decoration: underline; }

/* Top bar on the game screen */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 14px 16px 0;
}
.topbar { gap: 12px; }
.topbar .home { color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; white-space: nowrap; flex: none; }
.topbar .home:hover { color: var(--accent); }

.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.small-btn { display: inline-flex; align-items: center; gap: 5px; font-size: 13px; padding: 4px 9px; white-space: nowrap; }
.small-btn svg { width: 14px; height: 14px; flex: none; }
.icon-btn { padding: 5px 7px; }
.icon-btn svg { width: 16px; height: 16px; }
.call-btn.primary-call { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.call-btn.in-call { color: var(--danger); border-color: var(--danger); }
.voice-status { font-size: 13px; color: var(--muted); }
.voice-status.error { color: var(--danger); }

/* Game layout */
.game {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: flex-start;
  padding: 8px 16px 24px;
}
.board-col { width: min(88vh - 80px, 640px, 100%); }

.player-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  font-weight: 600;
}
.player-bar .dot { width: 10px; height: 10px; flex: none; }
.player-bar .dot.online { background: #3cb35a; opacity: 1; }
.player-bar .captured {
  font-weight: 600; color: var(--muted); margin-left: auto; font-size: 13px;
  display: flex; align-items: center; white-space: nowrap;
}
.player-bar .captured img { width: 20px; height: 20px; margin-right: -7px; }
.player-bar .captured img:last-of-type { margin-right: 4px; }
.player-bar .turn-tag {
  font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px;
  background: var(--accent); color: var(--accent-text);
}

.board-wrap { position: relative; container-type: inline-size; }
.board {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(8, minmax(0, 1fr));
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
  user-select: none;
  touch-action: none;
}

.sq { position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.sq.light { background: var(--light-sq); }
.sq.dark { background: var(--dark-sq); }
.sq.last::before, .sq.selected::before { content: ""; position: absolute; inset: 0; }
.sq.last::before { background: var(--last-move); }
.sq.selected::before { background: var(--selected); }
.sq.check { background-image: var(--check); }
.sq.hint::after {
  content: ""; position: absolute; width: 30%; height: 30%; border-radius: 50%;
  background: var(--hint); pointer-events: none;
}
.sq.hint.capture::after {
  width: 100%; height: 100%; background: transparent;
  box-shadow: inset 0 0 0 5px var(--hint); border-radius: 50%;
}
.sq.hover { box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.65); }

.coord {
  position: absolute; font-size: 11px; font-weight: 700; pointer-events: none;
}
.coord.rank { top: 2px; left: 3px; }
.coord.file { bottom: 1px; right: 4px; }
.sq.light .coord { color: var(--dark-sq); }
.sq.dark .coord { color: var(--light-sq); }

.piece {
  position: relative;
  z-index: 1;
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 9.6cqw;
  line-height: 1;
  cursor: grab;
  font-family: "Segoe UI Symbol", "DejaVu Sans", "Apple Symbols", serif;
}
.piece img { width: 92%; height: 92%; display: block; pointer-events: none; user-select: none; -webkit-user-drag: none; }
.piece.dragging-origin { opacity: 0.3; }
.drag-ghost {
  position: fixed; z-index: 100; pointer-events: none;
  transform: translate(-50%, -50%) scale(1.1);
  display: flex; align-items: center; justify-content: center;
}

/* Promotion picker */
.promo {
  position: absolute; inset: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: rgba(0, 0, 0, 0.45);
}
.promo button {
  width: 18%; aspect-ratio: 1; padding: 0; border-radius: 12px;
  background: var(--light-sq); border: none;
}
.promo .piece { cursor: pointer; font-size: 11cqw; }

/* Side panel */
.panel {
  width: 300px;
  display: flex; flex-direction: column; gap: 14px;
  margin-top: 36px;
}
.status {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; font-weight: 600; font-size: 16px;
}
.status:empty { display: none; }
.status small { display: block; font-weight: 400; color: var(--muted); font-size: 13px; margin-top: 2px; }

.offer {
  background: var(--panel); border: 2px solid var(--accent); border-radius: var(--radius);
  padding: 12px 14px; display: flex; flex-direction: column; gap: 10px;
}
.offer .row { display: flex; gap: 8px; }
.offer .row button { flex: 1; }

.history {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.history-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 10px 8px 14px; border-bottom: 1px solid var(--border); font-weight: 600;
}
.nav { display: flex; gap: 4px; }
.nav button { padding: 4px 8px; font-size: 12px; }
.moves {
  list-style: none; margin: 0; padding: 6px 0;
  height: 260px; overflow-y: auto;
  font-variant-numeric: tabular-nums;
}
.moves li { display: grid; grid-template-columns: 36px 1fr 1fr; padding: 0 10px; }
.moves .num { color: var(--muted); padding: 3px 0; }
.moves .mv { padding: 3px 6px; border-radius: 4px; cursor: pointer; }
.moves .mv:hover { background: var(--border); }
.moves .mv.current { background: var(--accent); color: var(--accent-text); }
.moves .empty { color: var(--muted); padding: 8px 14px; display: block; }

.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.actions .primary { grid-column: 1 / -1; }

.share-row { display: flex; gap: 6px; margin-top: 4px; }
.share-row input {
  flex: 1; min-width: 0; font: inherit; font-size: 13px; padding: 8px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--panel); color: var(--text);
}

/* Players + room link */
.room {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 14px 14px;
}
.room-head { font-weight: 600; margin-bottom: 4px; }
.room-head span { color: var(--muted); font-weight: 400; }
.room label { display: block; font-size: 13px; color: var(--muted); margin-top: 10px; }
.players { list-style: none; margin: 0; padding: 0; }
.players li { display: flex; align-items: center; gap: 8px; padding: 5px 0; }
.players .swatch {
  width: 14px; height: 14px; border-radius: 3px; border: 1px solid #0006; flex: none;
}
.players .swatch.w { background: #fff; }
.players .swatch.b { background: #1a1a1a; }
.players .turn-tag {
  font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px;
  background: var(--accent); color: var(--accent-text);
}
.players li { min-height: 32px; }
.players .who { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.players .you { color: var(--muted); }
.players .state { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.players .state .dot, .player-bar .dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--muted); opacity: 0.4;
}
.players .state .dot.online { background: #3cb35a; opacity: 1; }
.players .empty { color: var(--muted); font-style: italic; }

.spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.game.panel-hidden .panel { display: none; }
.game.panel-hidden .board-col { width: min(88vh - 80px, 760px, 100%); }

@media (max-width: 900px) {
  .game { flex-direction: column; align-items: center; padding: 12px 16px; }
  .board-col { width: min(100%, 640px); }
  .panel { width: min(100%, 640px); margin-top: 0; }
  .moves { height: 160px; }
}

/* Home screen: games this browser can rejoin */
.saved { margin: 36px auto 0; max-width: 380px; text-align: left; }
.saved h2 {
  font-size: 13px; color: var(--muted); font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.04em; margin: 0 0 8px;
}
.saved-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.saved-list li {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
}
.saved-list .what { flex: 1; min-width: 0; }
.saved-list .who { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.saved-list .meta { font-size: 13px; color: var(--muted); }
.saved-list .meta.turn { color: var(--accent); font-weight: 600; }
.saved-list a.button { margin: 0; padding: 7px 14px; font-size: 14px; }

/* Pre-game lobby */
.muted { color: var(--muted); }
.pregame { max-width: 520px; margin: 4vh auto 0; padding: 0 16px 32px; }
.pregame .card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  padding: 24px; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
}
.pregame h1 { margin: 0 0 4px; font-size: 26px; }
.pregame h1 + p { margin: 0 0 14px; }
.pregame h2 { font-size: 15px; margin: 24px 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.share-row.big input { font-size: 15px; padding: 11px 12px; }
.passcode-row { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.passcode-row label { color: var(--muted); font-size: 14px; }
.passcode-row .passcode {
  width: 10.5ch; box-sizing: content-box; font: inherit; font-size: 22px; font-weight: 700; letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums; border: 1px dashed var(--border); border-radius: 8px;
  padding: 4px 10px; background: var(--bg); color: var(--text); text-align: center;
}
.share-row.big button { padding: 0 18px; }

.seats { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.seat {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px; min-height: 64px;
}
.seat.me { border-color: var(--accent); }
.seat .king { font-size: 38px; line-height: 1; width: 40px; text-align: center; flex: none; }
.seat .king.w { color: #fff; text-shadow: 0 0 1px #000, 0 0 1px #000, 0 0 2px #000; }
.seat .king.b { color: #1a1a1a; }
.seat .info { flex: 1; min-width: 0; }
.seat-avatar {
  width: 38px; height: 38px; flex: none; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--border); color: var(--text); font-weight: 700; font-size: 16px;
}
.seat.me .seat-avatar { background: var(--accent); color: var(--accent-text); }
.seat .colour { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.seat .name { font-weight: 600; font-size: 17px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.seat .name .you { color: var(--muted); font-weight: 400; }
.seat .tag {
  font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); margin-left: 6px; vertical-align: 2px;
}
.seat .state { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; flex: none; }
.seat .state .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); opacity: 0.4; }
.seat .state .dot.online { background: #3cb35a; opacity: 1; }
.seat.empty .name { font-weight: 400; color: var(--muted); font-style: italic; display: flex; align-items: center; gap: 8px; }

.seat .ready-tag {
  font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px; flex: none;
  border: 1px solid var(--border); color: var(--muted);
}
.seat .ready-tag.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
/* Room: countdown to the games lobby once both players are here */
.countdown {
  margin: 16px 0 0; padding: 12px 14px; border-radius: 12px;
  background: color-mix(in srgb, var(--accent) 12%, var(--panel)); border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  animation: cd-in .35s ease;
}
@keyframes cd-in { from { opacity: 0; transform: translateY(-6px); } }
.cd-row { display: flex; align-items: center; gap: 12px; }
.cd-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.cd-text strong { font-size: 16px; }
.cd-text span { color: var(--muted); font-size: 14px; }
.cd-text b { color: var(--accent); font-variant-numeric: tabular-nums; }
.cd-bar { height: 4px; margin-top: 10px; border-radius: 2px; background: color-mix(in srgb, var(--accent) 18%, transparent); overflow: hidden; }
.cd-bar span { display: block; height: 100%; width: 100%; background: var(--accent); transform-origin: left; }
button.wide { display: block; width: 100%; margin-top: 16px; padding: 11px; font-size: 16px; }

/* Games lobby */
.games-lobby { max-width: 980px; margin: 0 auto; padding: 4vh 16px 40px; }
.gl-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.gl-head h1 { margin: 0 0 2px; font-size: 28px; }
.gl-head p { margin: 0; }
.gl-side { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.gl-players { list-style: none; margin: 0; padding: 0; display: flex; gap: 8px; flex-wrap: wrap; }
.gl-players li {
  display: flex; align-items: center; gap: 6px; padding: 4px 12px 4px 4px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--border); font-size: 14px; font-weight: 600;
}
.gl-players .seat-avatar { width: 26px; height: 26px; font-size: 13px; }
.gl-players .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); opacity: .4; }
.gl-players .dot.online { background: #3cb35a; opacity: 1; }
.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 16px; }
.game-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.05); transition: transform .15s ease, box-shadow .15s ease;
}
.game-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,.09); }
.game-art { aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; gap: 6px; }
.game-body { flex: 1; padding: 14px 16px 4px; }
.game-body h3 { margin: 0 0 2px; font-size: 18px; }
.game-card > .primary { margin: 10px 16px 16px; padding: 10px; font-size: 15px; }
.game-meta { margin: 0; font-size: 13px; color: var(--muted); }
.game-meta:empty { display: none; }
.game-meta.turn { color: var(--accent); font-weight: 600; }
.game-body .game-meta + .game-meta { margin-top: 6px; }
.chess-art { background: var(--dark-sq); }
.chess-art img { width: 84px; height: 84px; filter: drop-shadow(0 3px 4px rgba(0,0,0,.3)); }
.memory-art { background: #f3e9d8; }
.whiteboard-art { background: #e7f0f7; }
.colourin-art { background: #fbeee6; }
.books-art { background: #f6efe2; }
.memory-art img, .whiteboard-art img, .colourin-art img, .books-art img { width: 84px; height: 84px; }
@media (max-width: 480px) {
  .game-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .game-body { padding: 10px 12px 2px; }
  .game-body h3 { font-size: 16px; }
  .game-body .game-meta:first-of-type { display: none; }
  .game-card > .primary { margin: 8px 12px 12px; padding: 8px; }
  .chess-art img { width: 60px; height: 60px; }
  .memory-art img, .whiteboard-art img, .colourin-art img, .books-art img { width: 60px; height: 60px; }
}
.link-btn { border: none; background: none; color: var(--muted); font-size: 12px; padding: 2px 4px; }
.link-btn:hover:not(:disabled) { color: var(--text); filter: none; }
/* p.hint only: .sq.hint is a legal-move square on the chessboard */
p.hint { text-align: center; font-size: 14px; margin: 14px 0 0; min-height: 1.4em; }
.top-left { display: flex; align-items: center; gap: 10px; }


/* Call window: floating (default) or docked as a right sidebar */
:root { --call-bg: #1c1c1e; --call-bar: #151515; --call-fg: #e8e8e8; --dock-w: 320px; }
.call {
  position: fixed; right: 16px; bottom: 16px; z-index: 50; width: 440px;
  display: flex; flex-direction: column;
  background: var(--call-bg); color: var(--call-fg);
  border-radius: 12px; overflow: hidden; box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}
.call-bar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 4px 6px 4px 12px; background: var(--call-bar); font-size: 12px; font-weight: 600;
}
.call-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.call-bar-btns { display: flex; gap: 2px; flex: none; }
.call-icon {
  border: none; background: transparent; color: var(--call-fg); padding: 4px 6px; border-radius: 6px;
  display: inline-flex;
}
.call-icon svg { width: 15px; height: 15px; }
.call-icon:hover { background: #ffffff1f; filter: none; }
.call-body { display: flex; flex-direction: column; min-height: 0; flex: 1; }

/* The two players' tiles sit side by side. */
.call-videos { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 6px 6px 0; }
.tile { position: relative; aspect-ratio: 4 / 3; background: #000; overflow: hidden; border-radius: 8px; }
.tile video { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile.local video { transform: scaleX(-1); } /* mirror yourself, like a selfie camera */
.avatar {
  position: absolute; inset: 0; margin: auto; width: 38%; max-width: 72px; aspect-ratio: 1; height: auto;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: #3a3a3c; color: #fff; font-size: clamp(16px, 4vw, 28px); font-weight: 600;
}
.tile.local .avatar { background: #48484a; }
.tile-name {
  position: absolute; left: 6px; bottom: 6px; font-size: 11px; color: #fff;
  background: #0009; padding: 1px 6px; border-radius: 4px;
}
.call-status { font-size: 12px; color: #b5b5b8; text-align: center; padding: 8px 10px 0; min-height: 1.4em; }
.call-status.live { color: #7ad48f; }
.call-status.error { color: #ff8a80; }
.call-controls { display: flex; justify-content: center; gap: 10px; padding: 10px; }
.call-ctl {
  width: 40px; height: 40px; border-radius: 50%; padding: 0; border: none;
  display: inline-flex; align-items: center; justify-content: center;
  background: #3a3a3c; color: #fff;
}
.call-ctl svg { width: 18px; height: 18px; }
.call-ctl:hover { filter: brightness(1.15); }
.call-ctl .slash { display: none; }
.call-ctl.off { background: #f2f2f2; color: #1c1c1e; }
.call-ctl.off .slash { display: inline; }
.call-ctl.hangup { background: #d93025; }

/* Minimised: just the title bar */
.call.min { width: auto; }
.call.min .call-body { display: none; }
.call.min #btn-call-dock { display: none; }

/* Docked: a full-height sidebar on the right; the page makes room for it */
.call-resize { display: none; }
body.call-docked { padding-right: var(--dock-w); }
.call.docked {
  top: 0; right: 0; bottom: 0; width: var(--dock-w);
  border-radius: 0; box-shadow: -2px 0 12px rgba(0, 0, 0, 0.2);
}
.call.docked .call-bar { padding: 8px 8px 8px 14px; font-size: 13px; }
.call.docked .call-body { padding: 12px; overflow-y: auto; }
.call.docked .call-videos { padding: 0; gap: 8px; grid-template-columns: 1fr; } /* stacked top and bottom */
.call.docked .call-controls { margin-top: auto; padding-top: 16px; }
.call.docked .call-resize {
  display: block; position: absolute; left: -3px; top: 0; bottom: 0; width: 8px;
  cursor: col-resize; z-index: 1;
}
.call.docked .call-resize:hover, .call.resizing .call-resize { background: #ffffff26; }
.call.resizing { user-select: none; }

/* Phones: the call window sits in the page under the board instead of floating. */
@media (max-width: 700px) {
  .call { position: static; width: auto; margin-top: 14px; box-shadow: none; }
  .call.min { width: auto; }
  #btn-call-dock { display: none; }
}

/* Memory: game screen */
.memory { max-width: 620px; margin: 0 auto; padding: 8px 16px 32px; }
.mem-top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; margin-bottom: 14px; }
.mem-player { display: flex; align-items: center; gap: 8px; min-width: 0; }
.mem-player.right { flex-direction: row-reverse; text-align: right; }
.mem-player .mp-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mem-player .mp-score {
  font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; min-width: 1.6ch; text-align: center;
}
.mem-player .turn-tag {
  font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px;
  background: var(--accent); color: var(--accent-text); white-space: nowrap;
}
.mem-player .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); opacity: .4; flex: none; }
.mem-player .dot.online { background: #3cb35a; opacity: 1; }
.mem-status { font-weight: 600; text-align: center; font-size: 15px; }
.mem-status small { display: block; font-weight: 400; color: var(--muted); font-size: 13px; }

.mem-grid { display: grid; gap: 8px; }
.mem-card {
  aspect-ratio: 1; padding: 0; border: none; background: none; perspective: 600px; cursor: pointer;
}
.mem-card:disabled { cursor: default; opacity: 1; }
.mem-card .inner {
  display: block; position: relative; width: 100%; height: 100%; transition: transform .35s ease; transform-style: preserve-3d;
}
.mem-card.up .inner { transform: rotateY(180deg); }
.mem-card .face {
  position: absolute; inset: 0; border-radius: 10px; backface-visibility: hidden;
  display: flex; align-items: center; justify-content: center;
}
.mem-card .back {
  background: var(--accent);
  background-image: radial-gradient(circle at 50% 50%, rgba(255,255,255,.18) 0 18%, transparent 19%);
  background-size: 22px 22px; box-shadow: 0 2px 6px rgba(0,0,0,.15);
}
.mem-card:not(:disabled):hover .back { filter: brightness(1.08); }
.mem-card .front {
  transform: rotateY(180deg); background: var(--panel); border: 2px solid var(--border);
}
.mem-card .front img { width: 78%; height: 78%; }
.mem-card.mine .front { border-color: var(--accent); }
.mem-card.theirs .front { border-color: #c98a3d; }
.mem-card.matched .front img { opacity: .75; }
.mem-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.credit { margin: 0; font-size: 12px; color: var(--muted); }
.credit a { color: inherit; }
.piece-credit { text-align: center; margin-top: 8px; font-size: 11px; }
@media (max-width: 600px) {
  .mem-top { grid-template-columns: 1fr 1fr; row-gap: 8px; }
  .mem-status { grid-column: 1 / -1; order: -1; }
}

/* Memory: setup screen */
/* minmax(0, 1fr): the four tiles always share the card's width, never push past its edge */
.theme-pick { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.theme-opt {
  display: flex; flex-direction: column; align-items: center; gap: 8px; min-width: 0;
  padding: 12px 6px 10px; border-radius: 12px; font-weight: 600;
}
.theme-opt .previews { display: flex; gap: 2px; max-width: 100%; }
.theme-opt .previews img { width: 26px; height: 26px; min-width: 0; }
.theme-opt[aria-checked="true"], .count-opt[aria-checked="true"] {
  border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
}
.count-pick { display: flex; gap: 8px; flex-wrap: wrap; }
.count-opt { flex: 1; min-width: 64px; padding: 8px 6px; border-radius: 10px; line-height: 1.2; }
.count-opt b { display: block; font-size: 18px; }
.count-opt span { font-size: 12px; color: var(--muted); }
#memory-setup .start { margin-top: 22px; text-align: center; }
#memory-setup .start .primary { width: 100%; font-size: 17px; padding: 12px; }
@media (max-width: 600px) { .theme-pick { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Memory: country name under a flag */
.mem-card .front { flex-direction: column; gap: 2px; }
.mem-card .front .label {
  font-size: 11px; line-height: 1.1; color: var(--muted); text-align: center; padding: 0 3px;
  max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.mem-card .front .label:empty { display: none; }
.mem-card.flag .front img { height: 62%; }

/* Chess setup: colour screen */
.colour-seats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.colour-seat {
  display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 0;
  padding: 16px 10px 14px; border: 1px solid var(--border); border-radius: 12px; text-align: center;
}
.colour-seat { background: var(--panel); color: var(--text); font: inherit; cursor: pointer; }
.colour-seat:hover:not(.me) { border-color: var(--accent); filter: none; }
.colour-seat.me {
  border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); cursor: default;
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
}
.colour-seat:disabled { opacity: 1; }
.colour-tap { font-size: 12px; color: var(--accent); font-weight: 600; margin-top: 2px; }
.colour-seat.me .colour-tap { visibility: hidden; }
.colour-seat .king { width: 56px; height: 56px; }
.colour-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.colour-label small { text-transform: none; letter-spacing: 0; }
.colour-name { font-weight: 700; font-size: 18px; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.colour-name .you { color: var(--muted); font-weight: 400; font-size: 15px; }
.colour-actions { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
#chess-setup .start { margin-top: 22px; text-align: center; }
#chess-setup .start .primary { width: 100%; font-size: 17px; padding: 12px; }
.colour-actions button { display: inline-flex; align-items: center; gap: 6px; }

/* Checkers */
.checkers-art { background: var(--light-sq); }
.checkers-art .disc, .ck-piece {
  display: block; border-radius: 50%; box-sizing: border-box;
}
.checkers-art .disc {
  width: 56px; height: 56px; background: #3a2a22;
  border: 4px solid #5a4236; box-shadow: inset 0 0 0 4px #3a2a22, inset 0 0 0 7px #5a4236, 0 3px 5px rgba(0,0,0,.3);
}
.checkers-art .disc.light {
  background: #f3e6cf; border-color: #c9b48f; box-shadow: inset 0 0 0 4px #f3e6cf, inset 0 0 0 7px #c9b48f, 0 3px 5px rgba(0,0,0,.3);
  margin-left: -14px; transform: translateY(10px);
}
@media (max-width: 480px) { .checkers-art .disc { width: 42px; height: 42px; } }
.checkers { max-width: 620px; margin: 0 auto; padding: 8px 16px 32px; }
.ck-board { margin: 0 auto; width: 100%; max-width: 588px; container-type: inline-size; }
.ck-board .sq { cursor: default; }
.ck-board .sq.movable { cursor: pointer; }
.ck-board .sq.target { cursor: pointer; }
.ck-piece {
  position: relative; z-index: 1; width: 78%; height: 78%;
  box-shadow: inset 0 0 0 3px rgba(255,255,255,.12), inset 0 -4px 0 rgba(0,0,0,.25), 0 2px 4px rgba(0,0,0,.35);
}
.ck-piece.d { background: #2f2421; border: 2px solid #1a1311; }
.ck-piece.l { background: #f3e6cf; border: 2px solid #c9b48f; }
.ck-piece.king::after {
  content: "♛\FE0E"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 6cqw; line-height: 1;
}
.ck-piece.d.king::after { color: #e9c46a; }
.ck-piece.l.king::after { color: #a6762a; }
.ck-piece.big { width: 48px; height: 48px; }
.ck-board .sq.movable .ck-piece { box-shadow: 0 0 0 3px var(--accent), 0 2px 4px rgba(0,0,0,.35); }
.ck-board .sq.path::before { content: ""; position: absolute; inset: 0; background: var(--last-move); }
.ck-board .sq.selected::before { content: ""; position: absolute; inset: 0; background: var(--selected); }
.ck-piece.mini { width: 16px; height: 16px; flex: none; box-shadow: 0 1px 2px rgba(0,0,0,.3); }
#checkers-setup .start { margin-top: 22px; text-align: center; }
#checkers-setup .start .primary { width: 100%; font-size: 17px; padding: 12px; }
.mem-player .mp-name { min-width: 3.5ch; }
/* Phones: the status line already says whose move it is, so give the names the room. */
@media (max-width: 600px) { .checkers .mem-player .turn-tag { display: none; } }

/* Whiteboard: fills the window below the top bar. Colours on the left, tools on the right. */
.whiteboard {
  display: flex; flex-direction: column;
  height: calc(100dvh - var(--wb-top, 70px)); min-height: 360px;
  border-top: 1px solid var(--border);
}
/* Its controls live in the top bar: zoom and pan in the middle, Undo / Clear / Save on the right. */
.topbar.wb {
  display: grid; grid-template-columns: 1fr auto 1fr auto; padding-bottom: 6px; padding-top: 8px;
}
.topbar.wb .wb-actions { justify-self: end; }
.wb-zoom { display: flex; align-items: center; gap: 8px; }
.wb-zoom[hidden], .wb-actions[hidden] { display: none; }
.wb-icon, .wb-pan {
  width: 40px; height: 40px; padding: 0; border: none; background: none; color: var(--text);
  display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; cursor: pointer;
}
.wb-icon svg { width: 28px; height: 28px; }
.wb-icon:disabled { opacity: .35; cursor: default; }
.wb-pan { margin-left: 10px; border: 2px solid var(--border); }
.wb-pan svg { width: 24px; height: 24px; }
.wb-pan.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
#wb-zoom { width: 150px; accent-color: var(--accent); cursor: pointer; }
.wb-actions { display: flex; gap: 6px; }
.wb-round {
  display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 2px 4px;
  border: none; background: none; color: var(--accent); cursor: pointer; min-width: 48px;
}
.wb-round .circle {
  width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--accent-text);
  display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 4px rgba(0,0,0,.15);
}
.wb-round .circle svg { width: 20px; height: 20px; }
.wb-round:hover .circle { filter: brightness(1.08); }
.wb-round .label { font-size: 10px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }

.wb-body { flex: 1; min-height: 0; display: flex; }
.wb-colours {
  flex: none; width: 76px; overflow-y: auto; padding: 10px 0; background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  scrollbar-width: none; /* still scrolls, just no bar */
}
.wb-colours::-webkit-scrollbar { display: none; }
.wb-swatch {
  flex: none; width: 40px; height: 40px; padding: 0; border-radius: 50%; border: none; cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.12); position: relative; transition: transform .1s;
}
.wb-swatch:hover { transform: scale(1.08); }
.wb-swatch.on { box-shadow: inset 0 0 0 1px rgba(0,0,0,.12), 0 0 0 3px var(--panel), 0 0 0 5px var(--accent); }
.wb-swatch.on::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 9px; height: 15px;
  border: solid #fff; border-width: 0 3px 3px 0; transform: translate(-50%, -62%) rotate(45deg);
  filter: drop-shadow(0 0 1px rgba(0,0,0,.6));
}
.wb-swatch.light.on::after { border-color: #333; filter: none; }

.wb-frame {
  flex: 1; min-width: 0; position: relative; overflow: hidden;
  background: color-mix(in srgb, var(--bg) 85%, var(--border));
}
.wb-paper { position: absolute; background: #fff; box-shadow: 0 1px 8px rgba(0,0,0,.12); }
/* Colour In: the picture's lines sit on top of the colouring; white parts let it show through. */
.wb-picture {
  position: absolute; object-fit: contain; pointer-events: none; user-select: none;
  mix-blend-mode: multiply;
}
.wb-frame canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: crosshair; }
.wb-frame.panning canvas { cursor: grab; }
.wb-frame.grabbing canvas { cursor: grabbing; }
.wb-status {
  position: absolute; left: 12px; top: 12px; pointer-events: none; max-width: calc(100% - 24px);
  padding: 6px 12px; border-radius: 999px; background: var(--panel); color: var(--text);
  font-size: 13px; box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

.wb-tools {
  flex: none; width: 60px; background: var(--panel); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  overflow: hidden; padding: 10px 0;
}
.wb-tool {
  position: relative; width: 48px; height: 54px; padding: 0; border: none; background: none; cursor: pointer;
}
.wb-tool svg { width: 40px; height: 50px; filter: drop-shadow(0 2px 2px rgba(0,0,0,.18)); }
.wb-tool .ink { fill: var(--ink, #1f1f1f); }
.wb-tool .edge { stroke: rgba(0,0,0,.18); stroke-width: 1; }
.wb-tool:hover svg { filter: drop-shadow(0 2px 4px rgba(0,0,0,.3)); }
.wb-tool.on::after {
  content: "✓"; position: absolute; right: 0; bottom: 0;
  width: 20px; height: 20px; border-radius: 50%; background: var(--panel); color: var(--accent);
  font-size: 13px; font-weight: 800; line-height: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.25);
}

/* Phones: colours and tools in rows under the board */
@media (max-width: 700px) {
  /* Two rows: name, Room and call on top; zoom and Undo / Clear / Save underneath. */
  .topbar.wb { grid-template-columns: 1fr auto; row-gap: 6px; }
  .topbar.wb .top-left { grid-area: 1 / 1; }
  .topbar.wb .top-actions { grid-area: 1 / 2; }
  .topbar.wb .wb-zoom { grid-area: 2 / 1; gap: 2px; }
  .topbar.wb .wb-actions { grid-area: 2 / 2; gap: 0; }
  #wb-zoom { width: 70px; }
  .wb-pan { margin-left: 4px; }
  .wb-round { min-width: 42px; padding: 2px; }
  .wb-body { flex-direction: column; }
  .wb-frame { order: 1; }
  .wb-colours {
    order: 2; width: auto; flex-direction: row; overflow-x: auto; overflow-y: hidden;
    padding: 8px 10px; border-right: none; border-top: 1px solid var(--border);
  }
  .wb-swatch { width: 34px; height: 34px; }
  .wb-tools {
    order: 3; width: auto; height: auto; flex-direction: row; padding: 6px 10px; gap: 14px;
    border-left: none; border-top: 1px solid var(--border);
  }
  .wb-tool { width: 44px; }
}

/* Desktop: breathing room between the top bar and the game (phones keep the tighter layout). */
@media (min-width: 901px) {
  .game, .memory, .checkers, .tictactoe { padding-top: 40px; }
}

/* End of game: celebration card */
.win {
  position: fixed; inset: 0; z-index: 80; display: flex; align-items: center; justify-content: center;
  padding: 16px; background: rgba(0, 0, 0, 0.45);
}
.confetti { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.win-card {
  position: relative; width: min(380px, 100%); background: var(--panel); color: var(--text);
  border-radius: 18px; padding: 26px 24px 18px; text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35); animation: win-pop 0.35s cubic-bezier(.2, 1.4, .4, 1);
}
.win-emoji { font-size: 64px; line-height: 1; animation: win-bounce 1.2s ease-in-out infinite; }
.win-card h2 { margin: 12px 0 4px; font-size: 26px; }
.win-card p { margin: 0 0 18px; color: var(--muted); }
.win-actions { display: flex; gap: 8px; }
.win-actions button { flex: 1; padding: 11px 10px; font-size: 15px; }
.win-card .link-btn { margin-top: 12px; font-size: 13px; }
@keyframes win-pop { from { transform: scale(.7); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes win-bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (prefers-reduced-motion: reduce) {
  .win-card, .win-emoji { animation: none; }
}

/* Home: "or join a room" */
.or { display: flex; align-items: center; gap: 12px; max-width: 260px; margin: 24px auto 4px; color: var(--muted); font-size: 13px; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.join-fields .name-field { margin: 10px auto; }
.join-fields + .primary { margin-top: 6px; }
.passcode-row { flex-wrap: wrap; }
.passcode-row .roomcode { width: 7.5ch; letter-spacing: 0.06em; text-transform: none; }

/* Room: code and passcode side by side */
.codes { display: grid; grid-template-columns: auto 1fr; gap: 16px; margin-top: 12px; align-items: end; }
.code-item label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.code-line { display: flex; gap: 8px; align-items: center; }
.codes .passcode {
  font: inherit; font-size: 22px; font-weight: 700; letter-spacing: 0.12em; font-variant-numeric: tabular-nums;
  border: 1px dashed var(--border); border-radius: 8px; padding: 4px 10px; background: var(--bg);
  color: var(--text); text-align: center; width: 9.5ch; box-sizing: content-box;
}
.codes .roomcode { letter-spacing: 0.08em; width: 7ch; }
@media (max-width: 600px) { .codes { grid-template-columns: 1fr; gap: 10px; } }

/* Colour In: picture gallery */
.colourin-setup { max-width: 760px; }
.ci-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 16px; }
.ci-pic {
  display: block; padding: 0; overflow: hidden;
  border: 1px solid var(--border); border-radius: 12px; background: #fff; cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  transition: transform .15s ease, box-shadow .15s ease;
}
.ci-pic:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.1); filter: none; }
.ci-pic img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #fff; padding: 12px; }
.ci-pic.current { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
@media (max-width: 480px) { .ci-gallery { grid-template-columns: 1fr 1fr; } }

/* Car park (admin only): ideas and feedback under each screen */
/* A quiet button in the bottom-left corner; the notes open as a small panel above it. */
.carpark { position: fixed; left: 12px; bottom: 12px; z-index: 40; }
.cp-pill {
  border: 1px solid var(--border); background: var(--panel); color: var(--muted);
  font-size: 12px; padding: 4px 10px; border-radius: 999px; opacity: .55;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.cp-pill:hover, .cp-pill:focus-visible { opacity: 1; color: var(--text); filter: none; }
.cp-pill.has-notes { color: var(--cp-head); border-color: var(--cp-border); }
.cp-box {
  width: min(420px, calc(100vw - 24px)); max-height: min(70vh, 560px); overflow: auto;
  background: var(--cp-bg); border: 1px solid var(--cp-border); border-radius: 12px;
  padding: 12px 14px; color: var(--cp-text); box-shadow: 0 8px 28px rgba(0,0,0,.18);
}
.cp-head { display: flex; align-items: flex-start; gap: 8px; }
.cp-head .cp-title { flex: 1; }
.cp-close {
  border: none; background: none; color: var(--cp-head); font-size: 14px; line-height: 1;
  padding: 2px 4px; margin: -2px -4px 0 0; opacity: .7;
}
.cp-close:hover { opacity: 1; filter: none; }
.cp-title { margin: 0 0 8px; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--cp-head); }
.cp-about { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.cp-list { margin: 0; padding-left: 18px; }
.cp-list li { margin: 4px 0; }
.cp-list li span { white-space: pre-wrap; overflow-wrap: anywhere; }
.cp-del {
  border: none; background: none; padding: 0 4px; margin-left: 6px; font-size: 12px; line-height: 1;
  color: inherit; opacity: .55; vertical-align: 1px;
}
.cp-del:hover, .cp-edit:hover { opacity: 1; filter: none; }
.cp-edit {
  border: none; background: none; padding: 0 4px; margin-left: 6px; font-size: 13px; line-height: 1;
  color: inherit; opacity: .55; vertical-align: 0;
}
.cp-edit + .cp-del { margin-left: 0; }
.cp-list li.editing { list-style: none; margin-left: -18px; }
.cp-edit-text {
  display: block; width: 100%; min-height: 38px; resize: vertical; font: inherit; padding: 8px 10px;
  border: 1px solid var(--cp-border); border-radius: 8px; background: var(--panel); color: var(--text);
}
.cp-edit-actions { display: flex; gap: 6px; margin-top: 6px; }
.cp-edit-actions button { padding: 5px 14px; font-size: 13px; }
.cp-form { display: flex; gap: 8px; margin-top: 10px; align-items: flex-start; }
.cp-form textarea {
  flex: 1; min-height: 38px; resize: vertical; font: inherit; padding: 8px 10px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--panel); color: var(--text);
}
.cp-form .primary { padding: 8px 18px; }
.carpark .error:empty { display: none; }
@media (max-width: 600px) { .cp-form { flex-direction: column; align-items: stretch; } }
/* Read-only copy on the games lobby cards */
.cp-mini {
  margin: 10px 16px 0; padding: 8px 10px; border-radius: 8px; font-size: 12px;
  background: var(--cp-bg); border: 1px solid var(--cp-border); color: var(--cp-text);
}
.cp-mini ul { margin: 0; padding-left: 16px; }
.cp-mini li { white-space: pre-wrap; overflow-wrap: anywhere; }

/* Tic-Tac-Toe */
.tictactoe-art { background: #eef3f8; gap: 2px; }
.tictactoe-art svg { width: 64px; height: 64px; }
.tictactoe { max-width: 680px; margin: 0 auto; padding: 8px 16px 32px; }
.ttt-board {
  /* Three equal rows and columns: what's in a square never changes its size */
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: repeat(3, minmax(0, 1fr));
  width: 100%; max-width: 580px; margin: 8px auto 0; aspect-ratio: 1;
}
/* A plain # grid: lines between the squares only */
.ttt-cell {
  position: relative; min-width: 0; min-height: 0; overflow: hidden;
  padding: 0; border: 0 solid #111; border-radius: 0; background: transparent;
}
.ttt-cell:nth-child(3n+1), .ttt-cell:nth-child(3n+2) { border-right-width: 3px; }
.ttt-cell:nth-child(-n+6) { border-bottom-width: 3px; }
@media (prefers-color-scheme: dark) { .ttt-cell { border-color: var(--text); } }
.ttt-cell:disabled { cursor: default; opacity: 1; }
.ttt-cell:not(:disabled):hover { filter: none; }
.ttt-cell svg { position: absolute; inset: 14%; width: 72%; height: 72%; }
.ttt-cell .placed { animation: ttt-in .22s ease-out; }
@keyframes ttt-in { from { transform: scale(.4); opacity: 0; } }
.ttt-cell .ghost { opacity: 0; transition: opacity .12s; }
.ttt-cell:not(:disabled):hover .ghost { opacity: .2; }
.ttt-cell.ttt-win { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.ttt-mark { width: 20px; height: 20px; flex: none; }
.ttt-mark svg { width: 100%; height: 100%; display: block; }
@media (max-width: 600px) { .tictactoe .mem-player .turn-tag { display: none; } }

/* Yes / no question */
.ask { z-index: 90; }
.ask .win-card { max-width: 380px; }
.ask-text { margin: 0 0 18px !important; color: var(--text) !important; font-size: 16px; line-height: 1.45; }

/* Books: the shelf */
.book-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 18px; margin-top: 16px; }
.book-card { display: flex; flex-direction: column; gap: 8px; padding: 0; border: none; background: none; text-align: left; cursor: pointer; }
.book-card:hover { filter: none; }
.book-card .cover {
  aspect-ratio: 3 / 4; border-radius: 4px 10px 10px 4px; overflow: hidden; background: #fff;
  border: 1px solid var(--border); box-shadow: -3px 0 0 rgba(0,0,0,.08) inset, 0 3px 10px rgba(0,0,0,.12);
  transition: transform .15s ease, box-shadow .15s ease;
}
.book-card:hover .cover { transform: translateY(-3px) rotate(-1deg); box-shadow: 0 8px 18px rgba(0,0,0,.16); }
.book-card .cover { display: flex; align-items: center; }
.book-card .cover img { width: 100%; height: 100%; object-fit: contain; display: block; } /* the whole cover, whatever its shape */
.book-card .name { font-weight: 600; font-size: 14px; }
.book-card .meta { font-size: 12px; color: var(--muted); margin-top: -6px; }
.book-card.current .cover { outline: 3px solid var(--accent); outline-offset: 0; }
@media (max-width: 480px) { .book-list { grid-template-columns: 1fr 1fr; } }

/* Books: reading */
/* The book fills the window, with the same side padding as the top bar (16px); the page-turn
   arrows sit over its sides. */
.books {
  padding: 8px 16px 12px; display: flex; flex-direction: column;
  min-height: calc(100dvh - var(--book-top, 70px));
}
/* The book and its controls, centred; the attribution sits at the very bottom */
.book-main { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.book-stage { position: relative; display: flex; align-items: center; justify-content: center; touch-action: pan-y; }
/* layoutSpread (app.js) sizes the pages to the space left after the controls under them */
.book-page { position: relative; flex: 1; display: flex; align-items: center; justify-content: center; min-width: 0; }
/* The end of the book: two buttons over the last page */
.book-end {
  position: absolute; z-index: 5; inset: 0; display: flex; align-items: center; justify-content: center; gap: 12px;
  animation: book-end-in .4s ease-out;
}
.book-end[hidden] { display: none; }
.book-end button { padding: 12px 22px; font-size: 16px; box-shadow: 0 6px 18px rgba(0,0,0,.18); }
@keyframes book-end-in { from { opacity: 0; transform: translateY(8px); } }
/* One page, or a two-page spread with the pages meeting at the spine. app.js sizes the pages
   (layoutSpread) so the spread is exactly as big as its pages. */
.book-spread { position: relative; display: flex; }
.book-spread img {
  display: block; background: #fff; border-radius: 6px; user-select: none; -webkit-user-drag: none;
  box-shadow: 0 6px 14px -4px rgba(0,0,0,.18);
}
.book-spread.two img:first-child { border-radius: 6px 0 0 6px; }
.book-spread.two img:last-child { border-radius: 0 6px 6px 0; }
/* A soft shadow down the spine */
.book-spread.two::after {
  content: ""; position: absolute; z-index: 4; top: 0; bottom: 0; left: 50%; width: 36px; transform: translateX(-50%);
  will-change: transform;
  pointer-events: none; background: linear-gradient(90deg, transparent, rgba(0,0,0,.06) 42%, rgba(0,0,0,.1) 50%, rgba(0,0,0,.06) 58%, transparent);
}
.book-spread.turn { animation: book-in .25s ease-out; }
/* Turning a page over (see turnOver in app.js): the leaf hinges on the spine */
.book-spread { perspective: 2600px; }
.book-leaf { position: absolute; top: 0; bottom: 0; width: 50%; z-index: 3; transform-style: preserve-3d; will-change: transform; }
.book-leaf.fwd { left: 50%; transform-origin: left center; }
.book-leaf.bwd { left: 0; transform-origin: right center; }
.book-leaf .face {
  position: absolute; inset: 0; overflow: hidden; background: #fff;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
}
.book-leaf .face img { width: 100%; height: 100%; display: block; border-radius: 0; box-shadow: none; }
/* The grey: black at 10% over the page, so white shows as #E6E6E6 like the spine's darkest point */
.book-leaf .face::after { content: ""; position: absolute; inset: 0; background: #000; opacity: 0; will-change: opacity; }
.book-leaf .back { transform: rotateY(180deg); }
.book-leaf.fwd .front, .book-leaf.bwd .back { border-radius: 0 6px 6px 0; }
.book-leaf.fwd .back, .book-leaf.bwd .front { border-radius: 6px 0 0 6px; }
/* A turn, 1.08s in all, the same forwards and backwards in time. The steps overlap a little
   so the motion flows: the page greys (0-22%), the spine's shadow narrows away (12-30%), the
   page turns over (22-78%), the spine's shadow comes back (72-90%), the grey lifts (82-100%). */
.book-leaf.go { animation: leaf-fwd .6s cubic-bezier(.45, .05, .35, 1) .24s both; }
.book-leaf.bwd.go { animation-name: leaf-bwd; }
@keyframes leaf-fwd { to { transform: rotateY(-180deg); } }
@keyframes leaf-bwd { to { transform: rotateY(180deg); } }
.book-leaf.go .face::after { animation: leaf-shade 1.08s both; }
@keyframes leaf-shade {
  0% { opacity: 0; animation-timing-function: ease-in-out; }
  22% { opacity: .1; }
  82% { opacity: .1; animation-timing-function: ease-in-out; }
  100% { opacity: 0; }
}
.book-spread.turning::after { animation: spine-fold 1.08s both; }
@keyframes spine-fold {
  0%, 12% { transform: translateX(-50%) scaleX(1); animation-timing-function: ease-in-out; }
  30%, 72% { transform: translateX(-50%) scaleX(0); animation-timing-function: ease-in-out; }
  90%, 100% { transform: translateX(-50%) scaleX(1); }
}
/* Opening the cover: the book slides right by half a page (12-32%), overlapping the start of
   the turn, and the spine appears once the cover has landed. Closing: the mirror image. */
.book-spread.closed::after { transform: translateX(-50%) scaleX(0); }
.book-spread.opening, .book-spread.closing { will-change: transform; }
.book-spread.opening { animation: book-open 1.08s both; }
@keyframes book-open {
  0%, 12% { transform: translateX(var(--shift)); animation-timing-function: cubic-bezier(.4, 0, .2, 1); }
  32%, 100% { transform: translateX(0); }
}
.book-spread.opening::after { animation: spine-open 1.08s both; }
@keyframes spine-open {
  0%, 72% { transform: translateX(-50%) scaleX(0); animation-timing-function: ease-in-out; }
  90%, 100% { transform: translateX(-50%) scaleX(1); }
}
.book-spread.closing { animation: book-close 1.08s both; }
@keyframes book-close {
  0%, 68% { transform: translateX(0); animation-timing-function: cubic-bezier(.4, 0, .2, 1); }
  88%, 100% { transform: translateX(var(--shift)); }
}
.book-spread.closing::after { animation: spine-close 1.08s both; }
@keyframes spine-close {
  0%, 12% { transform: translateX(-50%) scaleX(1); animation-timing-function: ease-in-out; }
  30%, 100% { transform: translateX(-50%) scaleX(0); }
}

@keyframes book-in { from { opacity: .3; transform: translateX(var(--from, 12px)); } }
/* Under the book: Bookshelf on the left, page turning in the middle, the title on the right */
.book-foot { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; margin-top: 20px; }
.book-turns { grid-column: 2; display: flex; align-items: center; gap: 10px; }
.book-turn {
  width: 44px; height: 44px; border-radius: 50%; padding: 0; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: var(--panel); border: 1px solid var(--border); color: var(--text); box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.book-turn svg { width: 24px; height: 24px; }
.book-turn:disabled { opacity: .3; }
.book-credit { text-align: center; margin-top: 16px; font-size: 11px; max-width: 760px; margin-left: auto; margin-right: auto; }
.book-credit:empty { display: none; }
.book-count { color: var(--muted); font-variant-numeric: tabular-nums; min-width: 7ch; text-align: center; }
@media (max-width: 600px) {
  /* Phones: the title on its own line above */
  .book-foot { grid-template-columns: 1fr; }
  .book-turns { grid-column: 1; justify-self: center; }
}

/* The admin page */
.admin-page .card { max-width: 400px; margin: 0 auto; }
.signin-card label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 10px; }
.signin-card input {
  display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font: inherit; font-size: 15px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--panel); color: var(--text);
}
.signin-card .error:empty { display: none; }
.signin-card .error { margin: 0 0 10px; font-size: 13px; }
#admin-signed-in .button { display: block; text-align: center; text-decoration: none; margin-top: 16px; padding: 11px; font-size: 16px; }

/* The admin area */
.admin-page.signed-in { max-width: 1020px; }
.admin-page.signed-in .card { max-width: none; }

.admin-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: -6px 0 14px; }
.admin-bar span { flex: 1; min-width: 0; font-size: 14px; }
/* Go to PlayMates (a link), Test and Sign out: three matching buttons in a row */
.admin-bar a.small-btn {
  text-decoration: none; color: var(--text); font-size: 13px; line-height: 1.4;
  border: 1px solid var(--border); border-radius: 8px; background: var(--panel);
}
.admin-bar a.small-btn:hover { filter: brightness(0.95); }
.admin-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.admin-tabs button { border: none; background: none; border-bottom: 3px solid transparent; border-radius: 0; padding: 8px 14px; font-weight: 600; color: var(--muted); }
.admin-tabs button.on { color: var(--text); border-bottom-color: var(--accent); }
.admin-tabs button:hover { filter: none; color: var(--text); }
.admin-msg { margin: 0 0 12px; font-size: 14px; color: var(--accent); }
.admin-msg.error { color: var(--danger); }
.admin-msg:empty { display: none; }
.admin-panel h2 { margin: 18px 0 8px; }
.admin-panel h2:first-child { margin-top: 0; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th { text-align: left; font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; padding: 6px 8px; border-bottom: 1px solid var(--border); }
.admin-table td { padding: 8px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.admin-table td:last-child { text-align: right; white-space: nowrap; }
.admin-table td.empty { color: var(--muted); text-align: left; }
.admin-table .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); opacity: .4; margin-right: 5px; vertical-align: 1px; }
.admin-table .dot.online { background: #3cb35a; opacity: 1; }
.admin-tag { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--bg); border: 1px solid var(--border); color: var(--muted); white-space: nowrap; }
.admin-inline { display: flex; gap: 8px; margin-top: 12px; }
.admin-inline input { flex: 1; min-width: 0; padding: 9px 12px; font: inherit; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); color: var(--text); }
.admin-note { margin-top: 10px; padding: 12px; border-radius: 10px; background: color-mix(in srgb, var(--accent) 10%, var(--panel)); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border)); }
.admin-note p { margin: 0 0 8px; font-size: 14px; }
.admin-games { list-style: none; margin: 0; padding: 0; }
.admin-games li { display: flex; align-items: center; gap: 10px; padding: 10px 6px; border-bottom: 1px solid var(--border); }
.admin-games .name { flex: 1; font-weight: 600; }
.admin-games .name.off { color: var(--muted); text-decoration: line-through; }
.admin-games .uses { color: var(--muted); font-size: 13px; min-width: 9ch; text-align: right; }
.admin-games .move { width: 32px; height: 32px; padding: 0; }
.switch { position: relative; width: 44px; height: 26px; flex: none; }
.switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.switch span { position: absolute; inset: 0; border-radius: 999px; background: var(--border); transition: background .15s; pointer-events: none; }
.switch span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); transition: transform .15s; }
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::after { transform: translateX(18px); }
.switch input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.admin-upload { display: inline-block; cursor: pointer; padding: 9px 18px; border-radius: 8px; font-weight: 600; background: var(--accent); color: var(--accent-text); }
.admin-upload:hover { filter: brightness(.95); }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 12px; }
.admin-item { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--panel); display: flex; flex-direction: column; }
.admin-item img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #fff; padding: 8px; display: block; }
.admin-item .info { padding: 8px 10px; font-size: 13px; flex: 1; }
.admin-item .info strong { display: block; font-size: 14px; overflow-wrap: anywhere; }
.admin-item .info span { color: var(--muted); }
.admin-item .del { margin: 0 10px 10px; padding: 6px; font-size: 13px; }
.admin-book-form { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 10px; align-items: end; padding: 12px; border: 1px solid var(--border); border-radius: 12px; }
.admin-book-form label { font-size: 13px; font-weight: 600; color: var(--muted); display: block; }
.admin-book-form input[type=text] { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); color: var(--text); }
.admin-book-form input[type=file] { display: block; margin-top: 4px; font-size: 13px; max-width: 100%; }
.admin-books { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.admin-book { display: flex; gap: 12px; align-items: center; padding: 10px; border: 1px solid var(--border); border-radius: 12px; }
.admin-book img { width: 96px; height: 72px; object-fit: contain; background: #fff; border: 1px solid var(--border); border-radius: 6px; flex: none; }
.admin-book .info { flex: 1; min-width: 0; font-size: 13px; }
.admin-book .info strong { display: block; font-size: 15px; }
.admin-book .info span { color: var(--muted); }
.admin-book .info small { display: block; color: var(--muted); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 700px) {
  .admin-book-form { grid-template-columns: 1fr; }
  .admin-table .hide-phone { display: none; }
}

/* Test mode: both players side by side */
.test-view { position: fixed; inset: 0; z-index: 70; display: flex; flex-direction: column; background: var(--bg); }
.test-view[hidden] { display: none; }
.test-bar { display: flex; align-items: center; gap: 12px; padding: 8px 12px; border-bottom: 1px solid var(--border); background: var(--panel); flex-wrap: wrap; }
.test-bar strong { flex: 1; min-width: 0; }
.test-bar #test-room-id { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--muted); font-weight: 600; }
.test-switch { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.test-switch button { border: none; border-radius: 0; padding: 6px 12px; font-size: 13px; background: none; }
.test-switch button + button { border-left: 1px solid var(--border); }
.test-switch button.on { background: var(--accent); color: var(--accent-text); }
.test-frames { flex: 1; min-height: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 8px; }
.test-frames.show-1, .test-frames.show-2 { grid-template-columns: 1fr; }
.test-frames.show-1 .test-frame:nth-child(2), .test-frames.show-2 .test-frame:nth-child(1) { display: none; }
.test-frame { position: relative; min-width: 0; min-height: 0; display: flex; flex-direction: column; }
.test-frame span { font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); padding: 0 4px 4px; }
.test-frame iframe { flex: 1; width: 100%; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); }
.admin-table td.admin-actions { white-space: normal; }
.admin-table td.admin-actions .small-btn { margin: 2px 0 2px 4px; }