.games-page {
  --paper: #faf6ee; --paper-deep: #f1eadc; --paper-card: #fffdf8;
  --ink: #1e2b38; --ink-soft: #5c6b79; --ink-faint: #758390;
  --line: #dcd2bf; --accent: #c0481e; --accent-deep: #9a3815;
  --good: #33745b; --bad: #b34343;
  font-size: 15px; line-height: 1.6;
}
:root[data-theme="dark"] .games-page {
  --paper: #171c20; --paper-deep: #20282d; --paper-card: #252e33;
  --ink: #eef1ed; --ink-soft: #bec9c9; --ink-faint: #9eafb4; --line: #45545a;
  --accent: #f0a27d; --accent-deep: #ffc0a0; --good: #8fd5b4; --bad: #f49b97;
}
.games-page * { box-sizing: border-box; }
.games-main *, .games-mobile-nav * { letter-spacing: 0; }
.games-page [hidden] { display: none !important; }
.games-main a, .games-mobile-nav a { color: inherit; text-decoration: none; }
.games-page button, .games-page input, .games-page select { font: inherit; }
.games-page button { cursor: pointer; }
.games-page button:disabled { cursor: not-allowed; opacity: .55; }
.games-page :focus-visible { outline: 2px solid var(--accent, #c0481e); outline-offset: 3px; }
/* Keep the shared course header independent of the arcade body palette. */
.games-page .site-header {
  --paper: initial; --paper-deep: initial; --paper-card: initial; --ink: initial;
  --ink-soft: initial; --line: initial; --accent: initial;
  color: var(--ink, #1e2b38); font-size: 16px; line-height: 1.5;
}
:root[data-theme="dark"] .games-page .site-header {
  --paper: #171c20; --paper-deep: #20282d; --paper-card: #252e33; --ink: #eef1ed;
  --ink-soft: #bec9c9; --line: #45545a; --accent: #f0a27d;
}
.games-page .theme-toggle .lucide { width: 20px; height: 20px; }
.games-main { max-width: 1320px; margin: auto; padding: 86px 32px 40px; }
.page-title { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-bottom: 24px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.section-label { color: var(--accent); font-size: 12px; font-weight: 700; }
.games-page h1 { font-size: 30px; line-height: 1.3; margin: 6px 0 0; font-weight: 900; }
.games-page h2 { font-size: 18px; line-height: 1.4; margin: 0; }
.games-page h3 { font-size: 17px; margin: 0 0 6px; line-height: 1.5; }
.games-page p { margin: 8px 0; }
.muted { color: var(--ink-soft); font-size: 13px; }
.text-link { display: inline-flex; gap: 7px; align-items: center; color: var(--accent) !important; font-size: 13px; }
.text-link:hover { text-decoration: underline; }
.lucide { width: 18px; height: 18px; flex-shrink: 0; vertical-align: middle; }
.icon-btn { width: 36px; height: 36px; display: inline-grid; place-items: center; padding: 0; border: 1px solid var(--line, #dcd2bf); border-radius: 4px; background: transparent; color: var(--ink-soft, #5c6b79); flex: 0 0 auto; }
.icon-btn:hover { background: var(--paper-deep, #f1eadc); color: var(--accent, #c0481e); }
.games-menu { display: none; }
.games-mobile-nav { position: fixed; inset: 54px 0 auto; z-index: 9999; background: var(--paper-card); border-bottom: 1px solid var(--line); padding: 16px 24px; box-shadow: 0 8px 24px #0002; }
.games-mobile-nav a { display: block; padding: 8px 0; }
.lobby-layout { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(380px, 1fr); gap: 36px; align-items: start; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.section-heading h2 { display: flex; align-items: center; gap: 8px; }
.game-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.game-card { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: var(--paper-card); }
.game-card:hover { border-color: var(--game-color); box-shadow: 0 4px 14px #0001; }
.preview { display: block; width: 100%; height: 94px; border-bottom: 1px solid var(--line); }
.game-card-copy { padding: 15px 17px; display: flex; flex-direction: column; flex: 1; gap: 7px; }
.game-meta { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--ink-soft); }
.game-meta span:first-child { color: var(--game-color); font-weight: 700; }
:root[data-theme="dark"] .game-meta span:first-child { color: var(--ink-soft); }
.game-card h3 { margin: 0; font-size: 17px; }
.game-card p { margin: 0 0 4px; min-height: 40px; color: var(--ink-soft); font-size: 12px; }
.card-go { margin-top: auto; display: flex; align-items: center; justify-content: space-between; color: var(--accent); font-weight: 700; font-size: 12px; }
.leaderboard { border-left: 1px solid var(--line); padding-left: 30px; min-width: 0; }
.board-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.board-tab { border: 0; border-bottom: 2px solid transparent; padding: 8px 4px; background: transparent; color: var(--ink-soft); font-size: 12px; white-space: normal; }
.board-tab[aria-selected="true"] { border-color: var(--accent); color: var(--accent); font-weight: 700; background: var(--paper-deep); }
.board-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 17px 0; }
.table-scroll { overflow-x: auto; }
.board-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.board-table th { font-weight: 500; color: var(--ink-soft); text-align: left; white-space: nowrap; }
.board-table td, .board-table th { padding: 11px 4px; border-bottom: 1px solid var(--line); }
.board-table td:nth-child(2) { word-break: break-all; max-width: 105px; min-width: 68px; }
.board-table .score-cell { font-weight: 800; color: var(--accent); }
.board-table .rank-cell { width: 36px; }
.board-table .date-cell { white-space: nowrap; font-size: 10px; }
.board-empty { padding: 42px 10px; text-align: center; color: var(--ink-soft); border-bottom: 1px solid var(--line); }
.board-empty .lucide { width: 28px; height: 28px; margin-bottom: 8px; }
.board-empty strong { display: block; color: var(--ink); }
.personal-best { margin-top: 16px; padding: 14px 0; border-top: 2px solid var(--accent); display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; }
.board-pagination { display: flex; gap: 12px; align-items: center; justify-content: flex-end; margin-top: 15px; }
.game-heading { display: flex; align-items: center; gap: 12px; }
.game-heading .lucide { width: 28px; height: 28px; color: var(--accent); }
.game-hud { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 14px 0; margin-bottom: 24px; border-bottom: 1px solid var(--line); }
.stage-steps { display: flex; gap: 9px; flex-wrap: wrap; }
.stage-step { padding: 5px 10px; border-bottom: 2px solid var(--line); color: var(--ink-soft); font-size: 12px; }
.stage-step.current { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.stage-step.done { border-color: var(--good); color: var(--good); }
.hud-numbers { display: flex; gap: 20px; font-size: 12px; white-space: nowrap; }
.hud-numbers strong { color: var(--accent); font-size: 16px; }
.play-layout { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(300px, 1fr); gap: 32px; align-items: start; }
.play-surface { min-width: 0; }
.board-canvas { display: block; width: 100%; aspect-ratio: 1.65; border: 1px solid var(--line); background: var(--paper-card); }
.play-controls { border-left: 1px solid var(--line); padding-left: 26px; min-width: 0; }
.mission { font-size: 15px; line-height: 1.8; margin-bottom: 20px !important; }
.field { display: block; margin: 16px 0; }
.field-title { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 12px; color: var(--ink-soft); }
.games-page select, .games-page input[type="text"] { width: 100%; min-height: 40px; border: 1px solid var(--line); border-radius: 4px; padding: 7px 10px; color: var(--ink); background: var(--paper-card); }
.games-page input[type="range"] { width: 100%; accent-color: var(--accent); }
.check-field { display: flex; align-items: center; gap: 8px; margin: 14px 0; }
.check-field input { accent-color: var(--accent); width: 16px; height: 16px; }
.action-btn { display: inline-flex; justify-content: center; align-items: center; gap: 7px; min-height: 40px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink); background: var(--paper-card); font-weight: 700; font-size: 13px; }
.action-btn:hover { border-color: var(--accent); }
.action-btn.primary { background: var(--accent); color: var(--paper-card); border-color: var(--accent); }
:root[data-theme="dark"] .action-btn.primary { color: #171c20; }
.wide { width: 100%; }
.control-row { display: flex; align-items: center; gap: 10px; margin: 12px 0; flex-wrap: wrap; }
.direction-pad { display: grid; grid-template-columns: repeat(2, 44px); gap: 8px; margin: 16px 0; }
.direction-pad button { width: 44px; height: 44px; }
.controls-footer { display: flex; gap: 12px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.feedback { margin-top: 20px; padding: 12px 14px; background: var(--paper-deep); border-left: 3px solid var(--accent); font-size: 13px; }
.feedback.success { border-color: var(--good); }
.feedback.failure { border-color: var(--bad); }
.feedback:empty { display: none; }
.game-start { padding: 18px 0 8px; }
.game-start .action-btn { min-width: 170px; }
.review { margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--line); }
.review p { font-size: 13px; color: var(--ink-soft); }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--ink-soft); margin-top: 12px; }
.sample-table { width: 100%; border-collapse: collapse; text-align: center; font-size: 13px; margin-top: 16px; }
.sample-table th, .sample-table td { padding: 9px 5px; border-bottom: 1px solid var(--line); }
.sample-table .match { color: var(--good); font-weight: 700; }
.sample-table .mismatch { color: var(--bad); font-weight: 700; }
.param-group { padding-top: 8px; margin-top: 12px; border-top: 1px solid var(--line); }
.param-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.param-grid .field { margin: 8px 0; }
.token-workspace { padding: 30px 24px; min-height: 240px; border: 1px solid var(--line); background: var(--paper-card); }
.token-word { display: flex; align-items: center; flex-wrap: wrap; gap: 5px; margin-bottom: 25px; }
.token-symbol { min-width: 38px; height: 48px; padding: 8px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink); background: var(--paper-deep); font-family: var(--mono) !important; font-weight: 700; }
.token-merge { width: 24px; height: 34px; border: 0; padding: 0; background: transparent; color: var(--accent); }
.merge-list { padding-left: 24px; font-size: 13px; }
.merge-list li { padding: 7px 0; }
.merge-list .available { font-weight: 700; color: var(--accent); }
.merge-list .inactive { color: var(--ink-faint); }
.assembly-list { list-style: none; margin: 0; padding: 12px; border: 1px solid var(--line); background: var(--paper-card); }
.assembly-node { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-bottom: 1px solid var(--line); background: var(--paper-card); min-height: 52px; }
.assembly-node:last-child { border-bottom: 0; }
.assembly-node .node-label { flex: 1; font-size: 13px; min-width: 0; overflow-wrap: anywhere; }
.node-number { width: 22px; flex-shrink: 0; font-size: 11px; color: var(--ink-faint); }
.drag-handle { cursor: grab; color: var(--ink-faint); display: inline-flex; }
.assembly-node .icon-btn { width: 30px; height: 30px; }
.edge-list { display: flex; flex-direction: column; gap: 6px; margin: 14px 0; }
.edge-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.edge-row .icon-btn { width: 28px; height: 28px; }
.resource-table { font-size: 12px; width: 100%; border-collapse: collapse; margin: 16px 0; }
.resource-table td, .resource-table th { padding: 8px 4px; text-align: left; border-bottom: 1px solid var(--line); }
.result-heading { display: flex; gap: 20px; align-items: baseline; margin: 20px 0; }
.result-score { font-size: 44px; font-weight: 900; line-height: 1.2; color: var(--accent); }
.result-score small { font-size: 16px; color: var(--ink-soft); font-weight: 500; }
.result-levels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--line); margin: 20px 0; }
.result-level { padding: 18px 15px; border-right: 1px solid var(--line); min-width: 0; }
.result-level:last-child { border-right: 0; }
.result-level strong { font-size: 24px; color: var(--accent); }
.result-level .muted { display: block; font-size: 12px; overflow-wrap: anywhere; }
.registration { max-width: 440px; padding: 18px 0; }
.registration .field { margin: 12px 0; }
.registration-status { font-size: 13px; color: var(--ink-soft); min-height: 24px; margin: 8px 0; }
.notice { color: var(--ink-soft); font-size: 12px; padding: 10px 0; }
.stage-outcome { padding: 15px 0; }
.stage-outcome h3 { color: var(--good); }
.stage-outcome.failed h3 { color: var(--bad); }
.game-toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.sidebar-games-link { display: block; margin: 10px 18px; padding: 9px 8px; border-bottom: 1px solid var(--line, #dcd2bf); color: var(--accent, #c0481e); font-size: 13px; font-weight: 700; text-decoration: none; }
@media (max-width: 1100px) {
  .lobby-layout { gap: 24px; grid-template-columns: minmax(0, 1.3fr) minmax(340px, 1fr); }
  .leaderboard { padding-left: 22px; }
}
@media (max-width: 1024px) {
  .games-menu { display: inline-grid; }
  .play-layout { grid-template-columns: minmax(0, 1.4fr) minmax(260px, 1fr); gap: 22px; }
  .play-controls { padding-left: 20px; }
}
@media (max-width: 820px) {
  .games-main { padding: 78px 20px 32px; }
  .lobby-layout, .play-layout { grid-template-columns: minmax(0, 1fr); }
  .leaderboard, .play-controls { border-left: 0; border-top: 1px solid var(--line); padding: 24px 0 0; }
  .game-hud { align-items: flex-start; flex-direction: column; gap: 12px; }
  .hud-numbers { gap: 24px; }
  .board-canvas { aspect-ratio: 1.4; }
}
@media (max-width: 480px) {
  .games-main { padding-inline: 16px; }
  .games-page h1 { font-size: 24px; }
  .page-title { align-items: flex-start; gap: 12px; }
  .page-title > .text-link { font-size: 11px; white-space: nowrap; }
  .game-grid { gap: 12px; }
  .game-card-copy { padding: 12px; }
  .game-card h3 { font-size: 15px; }
  .game-card p { min-height: 56px; font-size: 11px; }
  .game-meta { font-size: 10px; flex-wrap: wrap; gap: 3px; }
  .preview { height: 82px; }
  .result-level { padding: 14px 8px; }
  .result-level .muted { font-size: 11px; }
  .stage-step { padding: 4px 7px; }
  .game-heading { gap: 8px; }
  .game-heading .lucide { width: 23px; height: 23px; }
}
@media (prefers-reduced-motion: reduce) {
  .games-page * { transition: none !important; scroll-behavior: auto !important; }
}