:root {
  font-family: Arial, Helvetica, sans-serif;
  color: #111111;
  background: #ffffff;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --text: #111111;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --accent: #d4e89c;
  --accent-dark: #526834;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-width: 320px;
}
button,
input,
select {
  font: inherit;
}
button {
  color: inherit;
  cursor: pointer;
}
button:disabled {
  cursor: not-allowed;
}
button,
a,
input,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}
button {
  touch-action: manipulation;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid #386df6;
  outline-offset: 5px;
}
button:disabled {
  opacity: 0.5;
}
img {
  max-width: 100%;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1:focus {
  outline: none;
}
a {
  color: inherit;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 12px 20px;
  background: #111;
  color: white;
  border-radius: 12px;
}
.skip-link:focus {
  top: 12px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
  .companion-dock::before,
  .companion-dock::after {
    transition: opacity 150ms ease !important;
  }
  .companion-orb {
    transform: none !important;
  }
}

.app-shell {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
}
.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 96px;
  padding: 24px 32px;
  position: relative;
  z-index: 3;
}
.brand {
  border: 0;
  background: none;
  padding: 0;
  font-size: 24px;
  line-height: 32px;
  font-weight: 600;
  letter-spacing: -0.6px;
  white-space: nowrap;
}
.header-game {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 600;
  color: #707070;
}
.site-header nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  align-items: center;
}
.site-header nav button {
  border: 0;
  background: none;
  padding: 8px 0;
  min-height: 44px;
  font-size: 16px;
}
.site-header nav button[aria-current] {
  color: #777;
}
.site-header nav button:hover,
.back-link:hover {
  color: #526834;
}
.main-content {
  flex: 1;
  min-width: 0;
  position: relative;
}
.game-picker {
  padding-top: 83px;
  min-height: 620px;
}
.game-carousel {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  padding: 0 max(24px, calc((100% - 1088px) / 2));
}
.game-carousel::-webkit-scrollbar {
  display: none;
}
.game-cards {
  display: flex;
  width: max-content;
  gap: 28px;
  position: relative;
  isolation: isolate;
}
.game-card,
.game-peek {
  width: 344px;
  height: 416px;
  border-radius: 48px;
  background-size: cover;
  background-position: center;
  position: relative;
  color: white;
  overflow: hidden;
  flex-shrink: 0;
}
.game-card::after {
  content: "";
  position: absolute;
  inset: 45% 0 0;
  background: linear-gradient(transparent, #00000028);
  pointer-events: none;
}
.game-card-chess {
  background-image: url("/artwork/chess-card.webp");
}
.game-card-werewolf {
  background-image: url("/artwork/werewolf-card.webp");
}
.game-card-tic-tac-toe,
.peek-left {
  background-image: url("/artwork/tic-tac-toe-card.webp");
}
.game-shape {
  display: block;
  background: white;
  width: 120px;
  height: 116px;
  position: absolute;
  left: 50%;
  top: 68px;
  transform: translateX(-50%);
}
.triangle {
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  width: 108px;
  height: 94px;
  top: 82px;
}
.pentagon {
  clip-path: polygon(50% 0, 100% 38%, 81% 100%, 19% 100%, 0 38%);
}
.diamond {
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  width: 122px;
  height: 122px;
  top: 52px;
}
.game-card-copy {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 70px;
  z-index: 1;
}
.game-card h2 {
  font-size: 30px;
  line-height: 36px;
  letter-spacing: -0.65px;
  margin-bottom: 14px;
  font-weight: 600;
}
.game-card p {
  font-size: 16px;
  line-height: 24px;
}
.start-game {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  border: 0;
  background: #fff;
  border-radius: 30px 30px 0 0;
  min-height: 56px;
  width: 152px;
  padding: 11px 12px 20px;
  font-size: 14px;
  color: #111;
  transition:
    transform 160ms var(--ease-out),
    background-color 160ms ease;
}
.start-game:active:not(:disabled) {
  transform: translateX(-50%) scale(0.97);
}
.start-game:focus-visible {
  outline-offset: -5px;
}
.start-game:disabled {
  opacity: 0.9;
  color: #666;
}
.coming-soon {
  position: absolute;
  right: 20px;
  top: 20px;
  padding: 7px 11px;
  border-radius: 24px;
  font-size: 11px;
  letter-spacing: 0.2px;
  background: #ffffffed;
  color: #333;
  z-index: 1;
}
.game-peek {
  position: absolute;
  pointer-events: none;
}
.peek-left {
  right: calc(100% + 28px);
  mask-image: linear-gradient(90deg, transparent 52%, black);
}
.peek-right {
  left: calc(100% + 28px);
  background-image: url("/artwork/red-card.webp");
  mask-image: linear-gradient(90deg, black, transparent 45%);
}
.picker-hint {
  text-align: center;
  margin: 28px 24px 0;
  font-size: 13px;
  line-height: 22px;
  color: #6b7280;
}
.picker-hint span {
  color: #30394b;
}
.chess-page {
  position: relative;
  padding: 53px 0 0;
  min-height: 716px;
}
.chess-layout {
  width: min(1060px, calc(100% - 160px));
  margin-inline: auto;
  position: relative;
  left: 60px;
  display: grid;
  grid-template-columns: minmax(0, 1.0196fr) minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}
.chess-board-column,
.chess-side-column {
  min-width: 0;
}
.chess-side-column {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.game-rail {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: absolute;
  left: 15px;
  top: 301px;
}
.round-control {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid #dedede;
  display: grid;
  place-items: center;
  background: white;
}
.round-control:hover {
  background: #f5f8ed;
}
.board-wrapper {
  --board-light: #edf3d6;
  --board-dark: #7d9250;
  --board-frame: #526834;
  padding: 40px 40px 40px 46px;
  background: var(--board-frame);
  border-radius: 48px;
  width: 100%;
}
.theme-marine {
  --board-light: #def0f3;
  --board-dark: #6b9baf;
  --board-frame: #36576a;
}
.theme-ember {
  --board-light: #f8e9d9;
  --board-dark: #bc8265;
  --board-frame: #86593f;
}
.theme-forest {
  --board-light: #dfe9db;
  --board-dark: #719474;
  --board-frame: #345940;
}
.theme-midnight {
  --board-light: #c6c9df;
  --board-dark: #7d83a9;
  --board-frame: #3f466d;
}
.board {
  position: relative;
  aspect-ratio: 1;
}
.board-row {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  height: 12.5%;
}
.board-row:first-child .square:first-child {
  border-top-left-radius: 8px;
}
.board-row:first-child .square:last-child {
  border-top-right-radius: 8px;
}
.board-row:last-child .square:first-child {
  border-bottom-left-radius: 8px;
}
.board-row:last-child .square:last-child {
  border-bottom-right-radius: 8px;
}
.square {
  position: relative;
  min-width: 0;
  padding: 0;
  border: 0;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.square-light {
  background: var(--board-light);
}
.square-dark {
  background: var(--board-dark);
}
.square:hover {
  box-shadow: inset 0 0 0 3px #ffffff65;
}
.square:focus-visible {
  z-index: 2;
  outline: 3px solid #2c60f5;
  outline-offset: -3px;
}
.square-selected {
  box-shadow: inset 0 0 0 4px #f2ce4c !important;
}
.square-last-move::before {
  content: "";
  position: absolute;
  inset: 0;
  background: #f4de4e38;
  z-index: -1;
}
.square-check {
  background: #c97061;
}
.label-rank,
.label-file {
  position: absolute;
  color: #edf3d6;
  font-size: 12px;
  font-weight: 400;
  pointer-events: none;
}
.label-rank {
  left: -23px;
  top: 50%;
  transform: translateY(-50%);
}
.label-file {
  left: 50%;
  bottom: -17px;
  transform: translateX(-50%);
}
.piece {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  pointer-events: none;
  line-height: 1;
  font-family: "Segoe UI Symbol", "Apple Symbols", sans-serif;
  font-size: clamp(24px, 3.3vw, 45px);
  color: #213017;
}
.piece img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.piece-set-symbols {
  color: #8b641a;
}
.piece-set-outlined {
  -webkit-text-stroke: 1px #213017;
  color: transparent;
}
.legal-move-dot {
  position: absolute;
  width: 22%;
  height: 22%;
  border-radius: 50%;
  background: #2130177a;
  pointer-events: none;
}
.board-computer-thinking {
  box-shadow: 0 0 0 3px #d4e89c80;
}
.board-status {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 6px;
  font-size: 12px;
  line-height: 18px;
  color: #4a543e;
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #7d9250;
  flex-shrink: 0;
}
.status-dot.is-thinking {
  animation: breathe 1s ease-in-out infinite alternate;
}
.playing-as {
  margin-left: auto;
  color: #73786e;
}
.board-actions {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.board-actions button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 12px;
  font-size: 12px;
  border: 0;
  background: #f5f6f3;
  border-radius: 20px;
}
.board-actions button:hover:not(:disabled) {
  background: #e9eedf;
}
.surface {
  border: 1px solid #e5e7eb;
  border-radius: 32px;
  padding: 24px;
  background: #fff;
}
.surface h2 {
  font-size: 24px;
  line-height: 30px;
  letter-spacing: -0.35px;
  font-weight: 600;
  margin-bottom: 16px;
}
.move-history {
  min-height: 252px;
}
.move-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 156px;
  overflow-y: auto;
  scrollbar-width: thin;
}
.move-list li {
  flex-shrink: 0;
}
.move-list button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 44px;
  padding: 11px 15px;
  border: 0;
  background: #f3f4f6;
  border-radius: 22px;
  text-align: left;
  font-size: 14px;
  gap: 12px;
}
.move-list button.current-move {
  background: #d4e89c;
}
.move-list button:hover {
  background: #e5edcf;
}
.move-list button:focus-visible {
  outline-offset: -3px;
}
.move-number {
  font-size: 12px;
  color: #4a543e;
}
.empty-history {
  min-height: 148px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 14px;
  line-height: 23px;
  color: #667052;
  gap: 4px;
}
.empty-history span {
  color: #8b9283;
  font-size: 12px;
}
.assistant-panel {
  position: relative;
}
.assistant-card {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 24px;
  background: #f3f4f6;
  border: 0;
  text-align: left;
  min-height: 76px;
  margin-bottom: 12px;
}
.assistant-card:last-of-type {
  margin-bottom: 0;
}
.assistant-card:hover:not(:disabled) {
  background: #edf1e5;
}
.assistant-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #d4e89c;
  flex-shrink: 0;
}
.assistant-card > span:last-child {
  min-width: 0;
}
.assistant-card strong {
  display: block;
  font-size: 14px;
  line-height: 20px;
  font-weight: 400;
  margin-bottom: 4px;
}
.assistant-card span span {
  display: block;
  color: #6b7280;
  font-size: 14px;
  line-height: 21px;
}
.guide-link {
  position: absolute;
  top: calc(100% + 10px);
  left: 24px;
  right: 24px;
  text-align: center;
}
.guide-link button {
  border: 0;
  background: none;
  color: #6b7280;
  font-size: 12px;
  line-height: 20px;
  padding: 4px;
}
.guide-link button:hover {
  color: #213017;
}
.game-notice,
.move-confirmation,
.engine-notice {
  padding: 16px;
  background: #f4f8e9;
  border: 1px solid #d4e89c;
  border-radius: 20px;
  font-size: 14px;
  line-height: 22px;
  margin-bottom: 16px;
}
.game-notice div,
.move-confirmation div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.move-confirmation {
  margin: 16px 0 0;
}
.engine-notice {
  margin: 16px 0 0;
  background: #fff7e8;
  border-color: #efdab0;
}
.engine-notice button {
  margin-top: 10px;
}
.review-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  font-size: 12px;
}
.pill-button {
  border: 1px solid #e0e4dc;
  background: #fff;
  padding: 10px 18px;
  min-height: 44px;
  border-radius: 24px;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.pill-button:hover {
  background: #f3f6ed;
}
.pill-button.primary {
  background: #d4e89c;
  border-color: #d4e89c;
}
.pill-button.primary:hover {
  background: #c4df83;
}
.companion-dock {
  position: relative;
  flex-shrink: 0;
  min-height: 261px;
  padding-bottom: 26px;
  isolation: isolate;
  z-index: 2;
  pointer-events: none;
}
.companion-dock::before,
.companion-dock::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 100%;
  height: 230px;
  bottom: 0;
  pointer-events: none;
  transition: opacity 250ms var(--ease-out);
}
.companion-dock::before {
  background:
    radial-gradient(ellipse at 50% 110%, #bae3ff, transparent 72%),
    linear-gradient(transparent, #eef9ff 45%, #cfeafa);
  opacity: 1;
}
.companion-dock::after {
  background:
    radial-gradient(ellipse at 50% 110%, #d5f76d, transparent 72%),
    linear-gradient(transparent, #f9fede 45%, #e5f794);
  opacity: 0;
}
.dock-green::before {
  opacity: 0;
}
.dock-green::after {
  opacity: 1;
}
.voice-connected::before,
.voice-connected::after {
  animation: glow-drift 6s linear infinite alternate;
}
.companion-orb-row {
  position: relative;
  display: flex;
  justify-content: center;
  height: 201px;
}
.orb-button {
  width: 160px;
  height: 201px;
  padding: 0;
  border: 0;
  background: none;
  position: relative;
  pointer-events: auto;
  border-radius: 48%;
}
.companion-orb {
  width: 201px;
  max-width: none;
  height: 201px;
  position: absolute;
  left: -20.5px;
  top: 0;
  pointer-events: none;
  transition: transform 160ms var(--ease-out);
}
.orb-state {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  white-space: nowrap;
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  line-height: 18px;
  color: #425d77;
}
.dock-green .orb-state {
  color: #526834;
}
.voice-connected .companion-orb {
  animation: orb-breathe 4s var(--ease-in-out) infinite;
}
.orb-button:disabled {
  opacity: 0.7;
}
.dock-icon {
  position: absolute;
  bottom: 40px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid #d9e2e9;
  background: #ffffffcf;
  color: #52616c;
  pointer-events: auto;
}
.typed-toggle {
  left: calc(50% + 112px);
}
.end-voice {
  right: calc(50% + 112px);
}
.dock-icon:hover,
.dock-icon.is-active {
  background: #fff;
  color: #111;
  border-color: #9cb2c2;
}
.companion-caption {
  max-width: 680px;
  margin: 9px auto 0;
  padding: 0 24px;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  color: #5b6770;
  max-height: 54px;
  overflow: auto;
  overflow-wrap: anywhere;
  pointer-events: auto;
}
.voice-error {
  width: min(620px, calc(100% - 32px));
  margin: 8px auto;
  padding: 10px 16px;
  background: #fff2ee;
  border: 1px solid #eac7bf;
  color: #933b29;
  border-radius: 16px;
  font-size: 13px;
  line-height: 20px;
  text-align: center;
  pointer-events: auto;
  max-height: 122px;
  overflow: auto;
}
.command-panel {
  position: absolute;
  bottom: 228px;
  left: 50%;
  transform: translateX(-50%);
  width: min(480px, calc(100% - 32px));
  border: 1px solid #e5e7eb;
  border-radius: 24px;
  padding: 20px;
  background: white;
  box-shadow: 0 12px 60px #243b2524;
  pointer-events: auto;
  max-height: min(500px, calc(100svh - 32px));
  overflow-y: auto;
}
.command-panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.command-panel-heading label {
  font-size: 14px;
  font-weight: 600;
}
.text-icon {
  background: none;
  border: 0;
  display: grid;
  place-items: center;
  padding: 5px;
  min-width: 44px;
  min-height: 44px;
}
.command-input-row {
  display: flex;
  align-items: center;
  border: 1px solid #dfe3dc;
  border-radius: 24px;
  padding: 4px;
  gap: 6px;
}
.command-input-row:focus-within {
  border-color: #7d9250;
}
.command-input-row input {
  min-width: 0;
  width: 100%;
  border: 0;
  padding: 8px 10px;
  background: none;
  font-size: 14px;
  outline: 0;
}
.send-command {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: #d4e89c;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.command-panel > p {
  font-size: 11px;
  line-height: 17px;
  color: #768170;
  margin-top: 10px;
}
.settings-page,
.help-page {
  width: min(680px, calc(100% - 64px));
  margin: 24px auto 80px;
}
.back-link {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  background: none;
  border: 0;
  padding: 5px 0;
  font-size: 13px;
  color: #73786f;
  margin-bottom: 26px;
}
.settings-page h1,
.help-page h1 {
  font-size: 32px;
  line-height: 40px;
  letter-spacing: -0.8px;
  font-weight: 600;
}
.page-intro {
  font-size: 15px;
  line-height: 24px;
  color: #6b7280;
  margin-top: 10px;
}
.settings-fields {
  margin-top: 36px;
}
.volume-field {
  padding: 0 0 28px;
  border-bottom: 1px solid #edf0e9;
}
.volume-field > div:first-child {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
}
.volume-field output {
  font-size: 14px;
  color: #70776a;
}
.volume-input {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  color: #68745a;
}
.volume-input input {
  width: 100%;
  accent-color: #7d9250;
  cursor: pointer;
  min-height: 24px;
}
.volume-field p {
  color: #7a8173;
  font-size: 12px;
  margin-top: 12px;
}
.toggle-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid #edf0e9;
  cursor: pointer;
}
.toggle-field strong {
  display: block;
  font-size: 15px;
  font-weight: 400;
}
.toggle-field span span {
  display: block;
  margin-top: 7px;
  font-size: 13px;
  line-height: 21px;
  color: #7a8173;
}
.toggle-field input {
  appearance: none;
  background: #dce1d7;
  border-radius: 24px;
  width: 44px;
  height: 26px;
  min-width: 44px;
  margin: 0;
  position: relative;
  cursor: pointer;
}
.toggle-field input::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 1px 3px #0002;
  transition: transform 160ms var(--ease-out);
}
.toggle-field input:checked {
  background: #7d9250;
}
.toggle-field input:checked::before {
  transform: translateX(18px);
}
.chess-preferences {
  margin-top: 30px;
  font-size: 14px;
}
.chess-preferences summary {
  cursor: pointer;
  padding: 8px 0;
}
.preferences-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}
.preferences-grid label {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
}
.preferences-grid select {
  min-width: 0;
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #dfe3dc;
  border-radius: 12px;
  color: #27311e;
  background: #f9faf7;
}
.chess-preferences > p {
  margin-top: 20px;
  color: #7a8173;
  font-size: 12px;
  line-height: 20px;
}
.help-page {
  padding-bottom: 16px;
}
.help-sections {
  margin-top: 36px;
}
.help-sections section {
  padding: 22px 0;
  border-bottom: 1px solid #edf0e9;
}
.help-sections section:first-child {
  padding-top: 0;
}
.help-sections h2 {
  font-size: 17px;
  line-height: 24px;
  font-weight: 600;
  margin-bottom: 10px;
}
.help-sections p,
.help-sections li {
  font-size: 14px;
  line-height: 24px;
  color: #697360;
}
.help-sections ul {
  margin: 0;
  padding-left: 20px;
}
.help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-loading {
  background: #5b7928 url("/artwork/chess-loading.webp") center / cover;
  color: #fff;
}
.page-loading .brand,
.page-loading .header-game,
.page-loading .site-header nav button {
  color: #fff;
}
.loading-page {
  min-height: calc(100svh - 96px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 64px 24px 150px;
}
.loading-center {
  text-align: center;
}
.loading-center .game-shape {
  position: relative;
  left: auto;
  top: auto;
  transform: none;
  margin: 0 auto 48px;
  width: 156px;
  height: 136px;
}
.loading-center h1 {
  font-size: 24px;
  font-weight: 400;
  line-height: 32px;
}
.loading-center p {
  font-size: 13px;
  margin-top: 12px;
  opacity: 0.8;
}
.rotating-shape {
  animation: loading-turn 2.4s steps(4, end) infinite;
}
.loading-back {
  position: absolute;
  bottom: 64px;
  padding: 14px 24px;
  border: 0;
  background: #fff;
  border-radius: 24px;
  color: #111;
  font-size: 14px;
}
.page-loading .companion-dock {
  min-height: 0;
  height: 0;
  margin: 0;
  padding: 0;
}
.page-loading .companion-dock::before,
.page-loading .companion-dock::after,
.page-loading .orb-button {
  display: none;
}
.page-loading .companion-orb-row {
  height: 0;
}
.page-loading .companion-caption {
  position: absolute;
  bottom: 12px;
  width: 100%;
  max-width: none;
  color: white;
}
.page-loading .dock-icon {
  bottom: 20px;
}
.confirm-overlay,
.promotion-overlay,
.game-end-overlay {
  position: fixed;
  inset: 0;
  background: #0005;
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  padding: 24px;
  overflow-y: auto;
}
.confirm-dialog,
.promotion-dialog,
.game-end-modal {
  width: min(480px, 100%);
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 28px;
  padding: 32px;
  text-align: center;
  box-shadow: 0 20px 100px #00000020;
}
.confirm-title,
.promotion-title,
.game-end-result {
  font-size: 24px;
  line-height: 32px;
  font-weight: 600;
  letter-spacing: -0.4px;
}
.confirm-message,
.game-end-message {
  font-size: 14px;
  line-height: 23px;
  color: #6b7280;
  margin-top: 12px;
}
.confirm-actions,
.game-end-actions {
  display: flex;
  flex-direction: row-reverse;
  gap: 12px;
  margin-top: 28px;
}
.btn {
  min-height: 44px;
  border: 1px solid #dedede;
  background: #f8f9f6;
  color: #111;
  padding: 12px 20px;
  border-radius: 24px;
  font-size: 14px;
  flex: 1;
}
.btn:hover {
  background: #edf3e1;
}
.btn-danger {
  background: #d9443c;
  border-color: #d9443c;
  color: #fff;
}
.btn-danger:hover {
  background: #bf342e;
}
.btn-cancel {
  background: #fff;
}
.game-end-actions {
  flex-direction: row;
}
.game-end-actions .btn:first-child {
  background: #d4e89c;
  border-color: #d4e89c;
}
.promotion-choices {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}
.promotion-btn {
  font-family: "Apple Symbols", "Segoe UI Symbol", sans-serif;
  font-size: 38px;
  width: 72px;
  height: 72px;
  border-radius: 16px;
  border: 1px solid #e5e7eb;
  background: #f5f8ed;
}
.promotion-btn:hover {
  background: #d4e89c;
}
@keyframes loading-turn {
  to {
    transform: rotate(360deg);
  }
}
@keyframes breathe {
  from {
    opacity: 0.3;
  }
  to {
    opacity: 1;
  }
}
@keyframes orb-breathe {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.035);
  }
}
@keyframes glow-drift {
  from {
    transform: translate3d(-1.5%, 2%, 0) scale(1.04);
  }
  to {
    transform: translate3d(1.5%, -2%, 0) scale(1.08);
  }
}
@media (hover: hover) and (pointer: fine) {
  .orb-button:hover .companion-orb {
    transform: scale(1.035);
  }
  .start-game:hover:not(:disabled) {
    background: #f2f8e6;
  }
}
@media (min-width: 1600px) {
  .game-picker {
    padding-top: 100px;
  }
  .chess-layout {
    left: 30px;
  }
}
@media (max-width: 1180px) {
  .chess-layout {
    left: 25px;
    width: calc(100% - 120px);
  }
  .board-wrapper {
    padding: 32px 32px 32px 38px;
    border-radius: 36px;
  }
  .assistant-card {
    padding: 14px;
  }
  .surface {
    padding: 20px;
  }
  .assistant-card span span {
    font-size: 13px;
  }
  .game-picker {
    padding-top: 64px;
  }
}
@media (max-width: 900px) {
  .site-header {
    padding: 20px 24px;
    min-height: 88px;
  }
  .chess-page {
    padding-top: 24px;
    padding-bottom: 70px;
  }
  .chess-layout {
    left: 0;
    width: calc(100% - 40px);
    max-width: 560px;
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .game-rail {
    position: static;
    flex-direction: row;
    justify-content: flex-end;
    max-width: 560px;
    width: calc(100% - 40px);
    margin: 0 auto 16px;
    gap: 12px;
  }
  .round-control {
    width: 44px;
    height: 44px;
  }
  .board-wrapper {
    padding: 32px 32px 32px 38px;
  }
  .surface {
    padding: 24px;
  }
  .assistant-card {
    padding: 16px;
  }
  .assistant-card span span {
    font-size: 14px;
  }
  .piece {
    font-size: clamp(28px, 8vw, 50px);
  }
  .main-content {
    padding-bottom: calc(190px + env(safe-area-inset-bottom, 0px));
  }
  .companion-dock {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: auto;
    min-height: calc(180px + env(safe-area-inset-bottom, 0px));
    margin: 0;
    padding-bottom: max(8px, env(safe-area-inset-bottom, 0px));
  }
  .app-shell:has(.voice-error) .main-content {
    padding-bottom: calc(320px + env(safe-area-inset-bottom, 0px));
  }
  .companion-orb-row {
    height: 132px;
  }
  .orb-button {
    width: 112px;
    height: 132px;
  }
  .companion-orb {
    width: 132px;
    height: 132px;
    left: -10px;
  }
  .orb-state {
    font-size: 10px;
    bottom: 0;
  }
  .companion-caption {
    font-size: 11px;
    line-height: 17px;
    padding-inline: 24px;
    max-height: 34px;
    margin-top: 4px;
  }
  .dock-icon {
    width: 44px;
    height: 44px;
    bottom: 30px;
  }
  .typed-toggle {
    left: calc(50% + 82px);
  }
  .end-voice {
    right: calc(50% + 82px);
  }
  .command-panel {
    position: fixed;
    top: max(16px, env(safe-area-inset-top, 0px));
    bottom: auto;
    left: 16px;
    right: 16px;
    width: auto;
    max-height: calc(100svh - 32px);
    transform: none;
    overflow-y: auto;
  }
  .command-input-row input,
  .preferences-grid select {
    font-size: 16px;
  }
  .page-loading .main-content {
    padding-bottom: 0;
  }
  .page-loading .companion-dock {
    height: 0;
    min-height: 0;
  }
  .volume-input input {
    min-height: 44px;
  }
  .move-list {
    max-height: 200px;
  }
  .game-picker {
    min-height: 620px;
  }
  .settings-page,
  .help-page {
    margin-bottom: 50px;
  }
}
@media (max-width: 900px) and (max-height: 600px) {
  .main-content {
    padding-bottom: calc(154px + env(safe-area-inset-bottom, 0px));
  }
  .companion-dock {
    min-height: calc(142px + env(safe-area-inset-bottom, 0px));
  }
  .companion-orb-row,
  .orb-button {
    height: 96px;
  }
  .orb-button {
    width: 96px;
  }
  .companion-orb {
    width: 96px;
    height: 96px;
    left: 0;
  }
  .dock-icon {
    bottom: 16px;
  }
}
@media (max-width: 600px) {
  .site-header {
    padding: 16px 20px;
    gap: 9px;
    flex-wrap: wrap;
    min-height: 80px;
  }
  .brand {
    font-size: 20px;
    letter-spacing: -0.5px;
  }
  .header-game {
    font-size: 18px;
    gap: 8px;
  }
  .site-header nav {
    gap: 16px;
  }
  .site-header nav button {
    font-size: 12px;
  }
  .page-chess .site-header nav,
  .page-loading .site-header nav {
    flex-basis: 100%;
    justify-content: flex-end;
    margin-top: -2px;
  }
  .game-picker {
    padding-top: 40px;
    min-height: 540px;
  }
  .game-carousel {
    padding-inline: 24px;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: 24px;
  }
  .game-cards {
    gap: 20px;
    padding-right: 24px;
  }
  .game-card {
    width: min(344px, calc(100vw - 56px));
    height: 396px;
    border-radius: 40px;
    scroll-snap-align: start;
  }
  .game-card-copy {
    left: 24px;
    right: 24px;
  }
  .game-card h2 {
    font-size: 28px;
  }
  .game-card p {
    font-size: 15px;
  }
  .game-peek {
    display: none;
  }
  .picker-hint {
    max-width: 320px;
    margin: 22px auto 0;
    padding: 0 16px;
    font-size: 12px;
  }
  .chess-page {
    padding-top: 8px;
  }
  .board-wrapper {
    border-radius: 30px;
    padding: 25px 22px 28px 30px;
  }
  .label-rank {
    font-size: 10px;
    left: -17px;
  }
  .label-file {
    font-size: 10px;
    bottom: -16px;
  }
  .board-status {
    font-size: 11px;
  }
  .playing-as {
    font-size: 10px;
  }
  .board-actions {
    gap: 6px;
  }
  .board-actions button {
    padding-inline: 10px;
    min-height: 44px;
  }
  .surface {
    border-radius: 28px;
    padding: 20px;
  }
  .surface h2 {
    font-size: 22px;
  }
  .assistant-card {
    padding: 14px;
    gap: 10px;
  }
  .assistant-icon {
    width: 34px;
    height: 34px;
  }
  .assistant-card strong,
  .assistant-card span span {
    font-size: 12px;
    line-height: 19px;
  }
  .settings-page,
  .help-page {
    width: calc(100% - 40px);
    margin-top: 16px;
  }
  .settings-page h1,
  .help-page h1 {
    font-size: 27px;
    line-height: 35px;
  }
  .page-intro {
    font-size: 14px;
    line-height: 22px;
  }
  .preferences-grid {
    gap: 20px 16px;
  }
  .toggle-field {
    gap: 16px;
  }
  .confirm-overlay,
  .promotion-overlay,
  .game-end-overlay {
    padding: 20px;
  }
  .confirm-dialog,
  .promotion-dialog,
  .game-end-modal {
    padding: 28px 24px;
    border-radius: 24px;
  }
  .confirm-title,
  .game-end-result {
    font-size: 22px;
  }
  .confirm-actions {
    gap: 8px;
  }
  .btn {
    padding-inline: 14px;
    font-size: 12px;
  }
  .promotion-btn {
    width: 56px;
    height: 60px;
    font-size: 30px;
  }
}

/* Static landing preview only. Product sources and preferences are untouched. */
html,
body {
  width: 1440px;
  min-width: 1440px;
  overflow: hidden;
  pointer-events: none;
}
body {
  margin: 0;
}
.app-shell {
  min-height: 1073px;
}
.board-wrapper {
  --board-light: #def0f3;
  --board-dark: #6b9baf;
  --board-frame: #36576a;
}
.companion-dock::after {
  background:
    radial-gradient(ellipse at 50% 110%, #d7e7c2, transparent 72%),
    linear-gradient(transparent, #f7f9ef 45%, #e8efda);
}
.companion-orb {
  width: 146px;
  height: 146px;
  left: 7px;
  top: 26px;
}
.engine-notice {
  display: none;
}
* {
  animation: none !important;
  transition: none !important;
}