:root {
  color-scheme: light;
  --ink: #1f2b28;
  --muted: #697772;
  --paper: #fbfcf8;
  --panel: rgba(255, 255, 255, 0.94);
  --line: #d6ded7;
  --green: #166a5c;
  --red: #c64d43;
  --gold: #d8aa43;
  --warm-square: #e9e5d6;
  --cool-square: #abc2b6;
  --shadow: 0 20px 70px rgba(30, 47, 39, 0.12);
  --icon-settings: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='black' stroke-width='2' stroke-linecap='round' d='M4 7h16M4 17h16'/%3E%3Ccircle cx='9' cy='7' r='2' fill='none' stroke='black' stroke-width='2'/%3E%3Ccircle cx='15' cy='17' r='2' fill='none' stroke='black' stroke-width='2'/%3E%3C/svg%3E");
  --icon-language: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath fill='none' stroke='black' stroke-width='2' stroke-linecap='round' d='M3 12h18M12 3a14 14 0 0 1 0 18M12 3a14 14 0 0 0 0 18'/%3E%3C/svg%3E");
  --icon-appearance: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='4' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath fill='none' stroke='black' stroke-width='2' stroke-linecap='round' d='M12 2v2M12 20v2M4.93 4.93l1.41 1.41M17.66 17.66l1.41 1.41M2 12h2M20 12h2M4.93 19.07l1.41-1.41M17.66 6.34l1.41-1.41'/%3E%3C/svg%3E");
}

html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f4f7f1;
  --muted: #a6b3ae;
  --paper: #0c1110;
  --panel: rgba(15, 20, 18, 0.9);
  --line: rgba(231, 237, 223, 0.17);
  --green: #4fc7a1;
  --red: #e66862;
  --gold: #f0cb69;
  --warm-square: #3a382d;
  --cool-square: #314940;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(22, 106, 92, 0.13), transparent 38%),
    linear-gradient(315deg, rgba(198, 77, 67, 0.1), transparent 44%),
    #f4f6ef;
}

html[data-lang="zh-CN"] body {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", ui-sans-serif, system-ui, sans-serif;
}

html[data-lang="zh-TW"] body {
  font-family: Inter, "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", ui-sans-serif, system-ui, sans-serif;
}

html[data-lang="en"] body,
html[data-lang="fr"] body,
html[data-lang="ru"] body {
  font-family: Inter, "Avenir Next", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
}

html[data-lang="ja"] body {
  font-family: Inter, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", ui-sans-serif, system-ui, sans-serif;
}

html[data-lang="ko"] body {
  font-family: Inter, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", ui-sans-serif, system-ui, sans-serif;
}

html[data-theme="dark"] body {
  background:
    radial-gradient(circle at 18% 8%, rgba(79, 199, 161, 0.16), transparent 32%),
    radial-gradient(circle at 82% 18%, rgba(200, 79, 72, 0.13), transparent 34%),
    var(--paper);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-back {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(28, 41, 38, 0.12);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  font-size: 13px;
  font-weight: 850;
  box-shadow: 0 12px 32px rgba(20, 33, 28, 0.12);
  backdrop-filter: blur(14px);
}

.app-shell {
  display: grid;
  grid-template-columns: 320px minmax(520px, 1fr) 300px;
  gap: 22px;
  min-height: 100vh;
  padding: 22px;
}

.side-panel,
.info-panel,
.top-bar,
.board-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.side-panel,
.info-panel {
  min-height: calc(100vh - 44px);
  padding: 20px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand h1 {
  margin: 0;
  font-size: 27px;
  letter-spacing: 0;
}

.brand p,
#turnMeta {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(2, 22px);
  grid-template-rows: repeat(2, 22px);
  gap: 5px;
  padding: 6px;
  border-radius: 8px;
  background: #eef2e9;
}

.brand-mark span {
  border-radius: 50%;
}

.brand-mark span:nth-child(1),
.brand-mark span:nth-child(4) {
  background: var(--green);
}

.brand-mark span:nth-child(2),
.brand-mark span:nth-child(3) {
  background: var(--red);
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 22px 0;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7faf5;
}

.mode-button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  font-weight: 800;
}

.mode-button.active {
  color: var(--ink);
  background: #fff;
  box-shadow: 0 8px 24px rgba(27, 45, 37, 0.09);
}

.control-block {
  display: grid;
  gap: 14px;
}

.prefs-panel {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  margin-bottom: 18px;
}

.field.compact {
  gap: 5px;
}

.theme-switch {
  min-width: 68px;
}

.online-step {
  display: grid;
  gap: 12px;
}

.step-header,
.room-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.secondary,
.mini {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  font-weight: 900;
}

.mini {
  min-height: 34px;
  padding: 0 12px;
  font-size: 13px;
}

.room-code {
  padding: 12px;
  border: 1px solid #c8dacd;
  border-radius: 8px;
  background: #eef5ea;
}

.room-code span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.room-code strong {
  margin-right: auto;
  font-size: 24px;
  letter-spacing: 2px;
}

.field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
}

html[data-theme="dark"] .mode-tabs,
html[data-theme="dark"] input,
html[data-theme="dark"] select,
html[data-theme="dark"] .mode-button.active,
html[data-theme="dark"] .secondary,
html[data-theme="dark"] .mini,
html[data-theme="dark"] .player-card,
html[data-theme="dark"] .rule-pills span,
html[data-theme="dark"] .metric,
html[data-theme="dark"] .log-item {
  background: rgba(255, 255, 255, 0.08);
}

html[data-theme="dark"] .player-card.active,
html[data-theme="dark"] .room-code {
  background: rgba(79, 199, 161, 0.13);
}

.primary {
  min-height: 44px;
  border: 1px solid var(--green);
  border-radius: 6px;
  color: #fff;
  background: var(--green);
  font-weight: 900;
}

.players {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.player-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.player-card.active {
  border-color: #88c1b4;
  background: #edf7f2;
}

.player-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
}

.player-card strong {
  display: block;
  font-size: 16px;
}

.player-card small,
.player-card > span:last-child {
  color: var(--muted);
}

.game-stage {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 22px;
  min-width: 0;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 90px;
  padding: 18px 20px;
}

.top-bar h2 {
  margin: 3px 0 0;
  font-size: 28px;
  letter-spacing: 0;
}

.rule-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.rule-pills span {
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: #fff;
  font-weight: 800;
  font-size: 13px;
}

.rule-pills span.active {
  color: #fff;
  border-color: var(--red);
  background: var(--red);
}

.board-card {
  display: grid;
  place-items: center;
  justify-items: center;
  min-height: 0;
  overflow: hidden;
  padding: clamp(14px, 2vw, 30px);
}

.board-wrap {
  width: min(100%, 72vh);
  max-width: 760px;
  min-width: 0;
}

.board-coords {
  display: grid;
  color: #74817c;
  font-size: 12px;
  font-weight: 900;
}

.board-coords.files {
  grid-template-columns: repeat(8, 1fr);
  padding-left: 24px;
  padding-bottom: 7px;
  text-align: center;
}

.board-body {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: stretch;
  width: 100%;
  min-width: 0;
}

.board-coords.ranks {
  grid-template-rows: repeat(8, 1fr);
  align-items: center;
}

.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  border: 7px solid #253830;
  border-radius: 8px;
  background: #253830;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.square {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  border: 0;
  padding: 0;
}

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

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

.square.selected::after,
.square.target::after,
.square.capture-target::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  pointer-events: none;
}

.square.selected::after {
  border: 4px solid var(--gold);
}

.square.target::after {
  background: rgba(216, 170, 67, 0.72);
}

.square.capture-target::after {
  border: 5px solid var(--red);
  background: rgba(198, 77, 67, 0.18);
}

.piece {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: min(72%, calc(100% - 10px));
  height: min(72%, calc(100% - 10px));
  aspect-ratio: 1;
  border-radius: 50%;
  border: clamp(3px, 0.55vw, 4px) solid rgba(255, 255, 255, 0.78);
  color: #fff;
  font-size: clamp(12px, 2.3vmin, 22px);
  line-height: 1;
  font-weight: 900;
  overflow: hidden;
  box-shadow:
    inset 0 -10px 18px rgba(0, 0, 0, 0.22),
    0 10px 22px rgba(18, 28, 24, 0.26);
}

.piece.south {
  background: radial-gradient(circle at 38% 28%, #47ad96, #146454 68%);
}

.piece.north {
  background: radial-gradient(circle at 38% 28%, #ea7f74, #b43c34 68%);
}

.piece.king::before {
  content: "王";
  display: grid;
  place-items: center;
  width: 54%;
  aspect-ratio: 1;
  border-radius: 50%;
  color: #553e0a;
  background: #f4d77d;
  font-size: 0.62em;
}

html[data-lang="en"] .piece.king::before,
html[data-lang="fr"] .piece.king::before {
  content: "K";
}

html[data-lang="ru"] .piece.king::before {
  content: "Д";
}

html[data-lang="ko"] .piece.king::before {
  content: "왕";
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.metric {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.metric span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 31px;
}

.log-panel {
  margin-top: 20px;
}

.log-panel h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

.log-list {
  display: grid;
  gap: 10px;
  max-height: calc(100vh - 210px);
  overflow: auto;
  padding-right: 4px;
}

.log-item {
  padding: 12px;
  border: 1px solid #edf0ea;
  border-radius: 8px;
  color: #53625d;
  background: #fff;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%) translateY(24px);
  max-width: min(520px, calc(100vw - 32px));
  padding: 12px 16px;
  border-radius: 999px;
  color: #fff;
  background: rgba(28, 41, 38, 0.92);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.hidden {
  display: none !important;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 280px minmax(420px, 1fr);
  }

  .info-panel {
    grid-column: 1 / -1;
    min-height: 0;
  }

  .log-list {
    max-height: 260px;
  }
}

@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding: 12px;
    gap: 12px;
  }

  .side-panel,
  .info-panel {
    min-height: 0;
  }

  .top-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .board-wrap {
    width: min(100%, calc(100vw - 44px));
    max-width: 100%;
  }

  .board-card {
    justify-items: stretch;
    padding: 10px;
  }

  .board-coords.files {
    padding-left: 18px;
  }

  .board-body {
    grid-template-columns: 18px minmax(0, 1fr);
  }

  .board-coords {
    font-size: 11px;
  }
}

@media (max-width: 460px) {
  .side-panel,
  .info-panel,
  .top-bar {
    padding: 14px;
  }

  .metrics {
    grid-template-columns: 1fr;
  }

  .board-card {
    padding: 8px;
  }

  .board-wrap {
    width: min(100%, calc(100vw - 40px));
    max-width: 100%;
  }

  .board-coords.files {
    padding-left: 16px;
  }

  .board-body {
    grid-template-columns: 16px minmax(0, 1fr);
  }

  .board {
    border-width: 5px;
  }

  .piece {
    width: min(76%, calc(100% - 8px));
    height: min(76%, calc(100% - 8px));
    border-width: 2px;
    font-size: clamp(10px, 3.2vw, 12px);
    box-shadow:
      inset 0 -7px 13px rgba(0, 0, 0, 0.22),
      0 6px 14px rgba(18, 28, 24, 0.24);
  }
}

.site-back {
  top: 16px;
  right: 18px;
  min-height: 38px;
  padding: 0 14px;
  opacity: 0.42;
  transform: scale(0.92);
  background: transparent;
  border-color: transparent;
  transition: opacity 180ms ease, transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.site-back:hover,
.site-back:focus-visible {
  opacity: 1;
  transform: none;
  background: var(--panel);
  border-color: var(--line);
}

.settings-menu.game-settings {
  position: fixed;
  top: 16px;
  right: 92px;
  z-index: 80;
}

.settings-menu {
  display: inline-flex;
  position: relative;
}

.settings-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 82px;
  max-width: 82px;
  height: 38px;
  padding: 0;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 999px;
  color: transparent;
  background: transparent;
  box-shadow: none;
  font-size: 0;
  font-weight: 850;
  white-space: nowrap;
  cursor: pointer;
  transition: max-width 180ms ease, padding 180ms ease, color 180ms ease, background 180ms ease, border-color 180ms ease;
}

.settings-trigger::before {
  content: "⚙";
  position: absolute;
  left: 50%;
  color: var(--ink);
  font-size: 20px;
  opacity: 0.72;
  transform: translateX(-50%);
  transition: opacity 180ms ease, transform 180ms ease;
}

.game-settings.open .settings-trigger,
.game-settings:focus-within .settings-trigger,
.game-settings:hover .settings-trigger {
  padding: 0 14px;
  border-color: var(--line);
  color: var(--ink);
  background: var(--panel);
  font-size: 14px;
}

.game-settings.open .settings-trigger::before,
.game-settings:focus-within .settings-trigger::before,
.game-settings:hover .settings-trigger::before {
  opacity: 0;
  transform: translateX(-50%) scale(0.7);
}

.settings-popover {
  position: absolute;
  right: 0;
  top: calc(100% + 12px);
  display: grid;
  gap: 0;
  width: min(310px, calc(100vw - 36px));
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 160ms ease, transform 160ms ease;
  backdrop-filter: blur(18px);
  z-index: 90;
}

.game-settings.open .settings-popover,
.game-settings:focus-within .settings-popover {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.settings-field {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) minmax(92px, auto) 12px;
  align-items: center;
  min-height: 58px;
  gap: 10px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
}

.settings-field + .settings-field {
  border-top: 1px solid var(--line);
}

.settings-field::before {
  color: var(--ink);
  font-size: 18px;
  opacity: 0.9;
}

.settings-field:first-child::before {
  content: "🌐";
  font-size: 17px;
}

.settings-field:nth-child(2)::before {
  content: "◐";
}

.settings-field::after {
  content: "›";
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
}

.settings-field select {
  width: auto;
  max-width: 150px;
  height: 40px;
  border: 0;
  border-radius: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 14px;
  font-weight: 850;
  text-align: right;
  text-align-last: right;
  appearance: none;
  cursor: pointer;
}

.export-tools {
  position: relative;
  display: inline-flex;
  margin-top: 12px;
}

.export-trigger,
.export-menu button {
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.62);
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.export-trigger::after {
  content: "⌄";
  margin-left: 6px;
  color: var(--muted);
}

.export-menu {
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  z-index: 30;
  display: grid;
  min-width: 128px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 140ms ease, transform 140ms ease;
  backdrop-filter: blur(16px);
}

.export-tools.open .export-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.export-menu button {
  justify-content: flex-start;
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: transparent;
  text-align: left;
}

.export-menu button:hover,
.export-menu button:focus-visible {
  background: var(--chip);
}

html[data-theme="dark"] .site-back,
html[data-theme="dark"] .settings-trigger,
html[data-theme="dark"] .settings-popover,
html[data-theme="dark"] .export-trigger {
  background: rgba(255, 255, 255, 0.08);
}

@media (max-width: 820px) {
  .site-back {
    top: 10px;
    right: 10px;
  }

  .settings-menu.game-settings {
    top: 10px;
    right: 82px;
  }
}
/* 20260627 polish: compact game top tools and app-like settings rows. */
.game-topbar {
  position: fixed;
  top: 16px;
  right: 18px;
  z-index: 180;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  pointer-events: auto;
}

.game-topbar .settings-menu.game-settings,
.game-topbar .site-back {
  position: relative !important;
  inset: auto !important;
  top: auto !important;
  right: auto !important;
  z-index: auto !important;
}

.game-topbar .site-back {
  min-width: 54px !important;
  height: 38px !important;
  padding: 0 14px !important;
  opacity: .62 !important;
  transform: none !important;
}

.game-topbar .site-back:hover,
.game-topbar .site-back:focus-visible {
  opacity: 1 !important;
}

.settings-trigger {
  width: 38px !important;
  min-width: 38px !important;
  max-width: 38px !important;
  height: 38px !important;
  padding: 0 !important;
  border-color: transparent !important;
  background: transparent !important;
  box-shadow: none !important;
  color: transparent !important;
  font-size: 0 !important;
}

.settings-trigger::before {
  content: "⚙" !important;
  font-size: 23px !important;
  color: var(--ink) !important;
  opacity: .76;
}

.game-settings.open .settings-trigger,
.game-settings:focus-within .settings-trigger,
.game-settings:hover .settings-trigger {
  width: 82px !important;
  min-width: 82px !important;
  max-width: 82px !important;
  padding: 0 14px !important;
  border-color: var(--line) !important;
  background: var(--panel) !important;
  color: var(--ink) !important;
  font-size: 14px !important;
}

.game-settings.open .settings-trigger::before,
.game-settings:focus-within .settings-trigger::before,
.game-settings:hover .settings-trigger::before {
  display: none !important;
}

.settings-popover {
  right: 0 !important;
  width: min(330px, calc(100vw - 28px)) !important;
  padding: 10px !important;
  border-radius: 28px !important;
}

.settings-field {
  position: relative !important;
  display: grid !important;
  grid-template-columns: 34px minmax(76px, 1fr) minmax(96px, auto) !important;
  align-items: center !important;
  min-height: 64px !important;
  padding: 0 14px !important;
  border-radius: 18px !important;
  overflow: hidden;
}

.settings-field:first-child::before {
  content: "🌐" !important;
}

.settings-field:nth-child(2)::before {
  content: "◐" !important;
}

.settings-field::after {
  content: attr(data-value) "  ›" !important;
  justify-self: end;
  color: var(--ink) !important;
  font-size: 14px !important;
  font-weight: 800;
  opacity: .74;
  transform: none !important;
}

.settings-field select {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  max-width: none !important;
  height: 100% !important;
  opacity: 0 !important;
  cursor: pointer;
}

@media (max-width: 760px) {
  .game-topbar {
    top: 10px;
    right: 10px;
  }
}

/* Final shared game header/settings normalization. */
.game-topbar {
  position: sticky !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 180;
  width: 100%;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px clamp(14px, 3vw, 28px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  box-shadow: 0 12px 34px rgba(38, 48, 45, 0.08);
  backdrop-filter: blur(18px);
}

.game-brand {
  display: grid;
  min-width: 0;
  gap: 2px;
  color: var(--ink);
  text-decoration: none;
}

.game-brand strong,
.game-brand span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.game-brand strong {
  font-size: 15px;
  line-height: 1.15;
}

.game-brand span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.game-nav {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.game-nav-link,
.game-topbar .site-back {
  position: static !important;
  inset: auto !important;
  z-index: auto !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px !important;
  height: 38px !important;
  min-height: 38px !important;
  padding: 0 13px !important;
  border: 1px solid var(--line) !important;
  border-radius: 999px;
  color: var(--ink);
  background: color-mix(in srgb, var(--panel) 80%, transparent) !important;
  box-shadow: none !important;
  opacity: 1 !important;
  transform: none !important;
  text-decoration: none;
  font-size: 13px;
  font-weight: 850;
}

.game-topbar .settings-menu.game-settings {
  position: relative !important;
  inset: auto !important;
  z-index: auto !important;
}

.settings-trigger::before,
.settings-field::before {
  content: "" !important;
  display: block !important;
  width: 22px !important;
  height: 22px !important;
  background: var(--ink) !important;
  opacity: .78;
  mask-position: center;
  mask-repeat: no-repeat;
  mask-size: contain;
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: contain;
}

.settings-trigger::before {
  position: static !important;
  left: auto !important;
  transform: none !important;
  mask-image: var(--icon-settings);
  -webkit-mask-image: var(--icon-settings);
}

.settings-field:first-child::before {
  mask-image: var(--icon-language);
  -webkit-mask-image: var(--icon-language);
}

.settings-field:nth-child(2)::before {
  mask-image: var(--icon-appearance);
  -webkit-mask-image: var(--icon-appearance);
}

.game-settings.open .settings-trigger,
.game-settings:hover .settings-trigger,
.game-settings:focus-within .settings-trigger {
  background: color-mix(in srgb, var(--panel) 80%, transparent) !important;
  color: var(--ink) !important;
}

.settings-field::after {
  color: var(--ink) !important;
}

.game-settings:not(.open):focus-within .settings-popover {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(-6px) !important;
}

.game-settings.open .settings-popover {
  opacity: 1 !important;
  pointer-events: auto !important;
  transform: translateY(0) !important;
}

.app-shell {
  min-height: calc(100vh - 64px);
}

@media (max-width: 760px) {
  .game-topbar {
    min-height: 52px;
    padding: 8px 10px;
    gap: 10px;
  }

  .game-brand strong {
    max-width: 44vw;
    font-size: 13px;
  }

  .game-brand span {
    display: none;
  }

  .game-nav {
    gap: 5px;
  }

  .game-nav-link,
  .game-topbar .site-back {
    min-width: 42px !important;
    height: 34px !important;
    min-height: 34px !important;
    padding: 0 10px !important;
    font-size: 12px;
  }

  .settings-trigger {
    width: 34px !important;
    min-width: 34px !important;
    max-width: 34px !important;
    height: 34px !important;
  }

  .game-settings.open .settings-trigger,
  .game-settings:hover .settings-trigger,
  .game-settings:focus-within .settings-trigger {
    width: 74px !important;
    min-width: 74px !important;
    max-width: 74px !important;
  }
}