/* Fluency games. The look signed off in docs/fluency-games-mockup.html
 * (plan §5a). Tokens, fonts, `.btn` and `.label` come from
 * templates/public/base.html; everything game-specific is `.g-*`.
 *
 * Phone: a round takes the whole screen. Laptop (44rem and up): the game is a
 * centred panel and the notes sit below it.
 */

.g-wrap{max-width:30rem;margin:0 auto;padding:1.1rem 16px 3rem}
.g-panel{position:relative}

/* ---- standing on its own --------------------------------------------- */
/* The same script and stylesheet run inside the app (`/app/games/…`), which
   has the colour and font tokens but not the public pages' `--rule`, `.btn`
   or `.label`. Scoped copies here, so the game looks the same in both. */
.g-panel{--rule:1.5px solid var(--color-line)}
.g-panel .label{font-family:var(--font-display);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--color-ink-dim);margin:0 0 .6rem}
.g-panel .label::before{content:'// ';color:var(--color-accent)}
.g-panel h1{font-size:clamp(1.7rem,6vw,2.4rem);font-weight:700;line-height:.98;
  letter-spacing:-.035em;text-transform:uppercase;margin:0 0 .45rem}
.g-panel .btn{font-family:var(--font-sans);font-weight:700;font-size:.92rem;
  text-decoration:none;color:var(--color-ink);background:var(--color-surface);
  padding:.7rem 1.15rem;border:var(--rule);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  box-shadow:4px 4px 0 var(--color-line)}
.g-panel .btn:hover{background:var(--color-accent-2);color:#0a0a0a}
.g-panel .btn-primary{background:var(--color-ink);color:var(--color-button-text);
  box-shadow:4px 4px 0 var(--color-accent)}
.g-panel .btn-primary:hover{background:var(--color-accent);color:var(--color-bg)}
.g-panel .btn .arr{font-family:var(--font-display);font-weight:400}
.g-panel a{color:var(--color-ink);text-decoration-color:var(--color-accent);
  text-underline-offset:.18em;text-decoration-thickness:1.5px}

/* ---- before a round ---------------------------------------------------- */
.g-start h1{font-size:clamp(1.7rem,6vw,2.4rem);margin:0 0 .45rem}
.g-start .how{color:var(--color-ink-dim);font-size:.9rem;margin:0 0 .85rem;line-height:1.45}
.g-noscript{border-left:3px solid var(--color-accent);padding:.1rem 0 .1rem .7rem;font-size:.9rem}
.g-levels{list-style:none;margin:0 0 .85rem;padding:0;border:var(--rule);background:var(--color-surface)}
/* margin:0 beats base.html's `main ul li{margin:.35rem 0}`, which opened a
   gap above every row. */
.g-levels li,.g-egs li,.g-missed li{margin:0}
.g-levels li{border-bottom:var(--rule)}
.g-levels li:last-child{border-bottom:0}
.g-level{display:grid;grid-template-columns:2.3rem 1fr auto;align-items:center;width:100%;
  min-height:2.75rem;padding:0;border:0;background:none;color:inherit;font:inherit;
  text-align:left;cursor:pointer}
.g-level .n{align-self:stretch;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:700;font-size:.8rem;
  background:var(--color-surface-2);border-right:var(--rule)}
.g-level .name{padding:.4rem .75rem;font-weight:700;font-size:.92rem;line-height:1.25}
.g-level .eg{padding-right:.75rem;font-family:var(--font-display);font-size:.8rem;
  color:var(--color-ink-dim);white-space:nowrap}
.g-level:hover .name{text-decoration:underline;text-decoration-color:var(--color-accent)}
.g-level[aria-checked="true"]{background:var(--color-surface-2)}
.g-level[aria-checked="true"] .n{background:var(--color-accent);color:#fff}
.g-level[aria-checked="true"] .name::after{content:' \2713';color:var(--color-accent)}
.g-level[aria-checked="true"] .eg{color:var(--color-accent)}
.g-mode{display:grid;grid-template-columns:1fr 1fr;border:var(--rule);margin:0 0 1rem}
.g-mode button{font:inherit;font-size:.85rem;font-weight:700;padding:.45rem .4rem;line-height:1.25;
  border:0;background:var(--color-surface);color:var(--color-ink-dim);cursor:pointer}
.g-mode button+button{border-left:var(--rule)}
.g-mode button[aria-pressed="true"]{background:var(--color-ink);color:var(--color-bg)}
.g-mode small{display:block;font-family:var(--font-display);font-weight:400;
  font-size:.66rem;letter-spacing:.04em;text-transform:uppercase;opacity:.75}
.g-start .go{width:100%;font-size:1.05rem;padding:.8rem;justify-content:center}
.g-start .go:disabled{opacity:.6;cursor:progress}
.g-error{font-size:.88rem;border-left:3px solid var(--color-accent);padding:.1rem 0 .1rem .7rem;margin:1rem 0 0}
.g-signin{font-size:.82rem;color:var(--color-ink-dim);border-left:3px solid var(--color-accent);
  padding:.1rem 0 .1rem .7rem;margin:1.1rem 0 0}
.g-under:empty{display:none}
.g-under .copy{font-family:var(--font-display);font-size:.7rem;letter-spacing:.06em;
  text-transform:uppercase;border:1.5px solid var(--color-ink-dim);color:var(--color-ink-dim);
  background:none;padding:.25rem .55rem;cursor:pointer;margin-left:auto}
.g-under .copy[hidden]{display:none}

/* ---- the hub --------------------------------------------------------------- */
.g-hub-lede{color:var(--color-ink-dim);font-size:1rem;margin:0 0 1.6rem;max-width:38rem}
.g-cards{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(16rem,1fr));
  list-style:none;margin:0 0 3rem;padding:0}
.g-cards li{margin:0}
.g-card{display:grid;grid-template-columns:1fr auto;gap:.2rem .8rem;height:100%;align-content:start;
  border:var(--rule);background:var(--color-surface);padding:.9rem 1rem;
  box-shadow:4px 4px 0 var(--color-line);text-decoration:none;color:inherit}
.g-card:hover{box-shadow:6px 6px 0 var(--color-accent);transform:translate(-2px,-2px);
  background:var(--color-surface);color:inherit}
.g-card h2{font-size:1.05rem;margin:0;letter-spacing:-.01em;line-height:1.25}
.g-card p{grid-column:1/-1;margin:0;font-size:.88rem;color:var(--color-ink-dim);line-height:1.45}
.g-card .sample{font-family:var(--font-display);font-weight:700;font-size:1rem;
  color:var(--color-accent);white-space:nowrap}
.g-card .meta{grid-column:1/-1;font-family:var(--font-display);font-size:.66rem;
  letter-spacing:.06em;text-transform:uppercase;color:var(--color-ink-dim);margin-top:.35rem}
.g-hub{--rule:1.5px solid var(--color-line)}
.g-under{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem 1rem;
  margin-top:1.2rem;font-size:.85rem}

/* ---- a round ------------------------------------------------------------ */
.g-round{display:flex;flex-direction:column;background:var(--color-bg)}
.g-round[hidden],.g-end[hidden],.g-start[hidden]{display:none}
.g-bar{display:flex;align-items:center;justify-content:space-between;gap:.75rem;
  padding:.55rem .9rem;border-bottom:var(--rule);font-family:var(--font-display);
  font-size:.72rem;letter-spacing:.05em;text-transform:uppercase}
.g-bar .lvl{color:var(--color-ink-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.g-bar .score{font-weight:700;white-space:nowrap;margin-left:auto}
.g-bar .score b{color:var(--color-accent);font-size:.9rem}
.g-bar .quit{background:none;border:1.5px solid var(--color-ink-dim);color:var(--color-ink-dim);
  font:inherit;font-size:.8rem;line-height:1;padding:.3rem .5rem;cursor:pointer}
.g-right{font-family:var(--font-display);background:var(--color-accent-2);color:#0a0a0a;
  padding:0 .35rem;margin-left:.4rem}
/* The clock is a bar that shortens. No digits counting down. */
.g-clock{height:.55rem;background:var(--color-surface-2);border-bottom:var(--rule);position:relative}
.g-clock[hidden],.g-steps[hidden]{display:none}
.g-clock i{position:absolute;left:0;top:0;bottom:0;width:100%;background:var(--color-accent)}
.g-steps{display:grid;grid-template-columns:repeat(20,1fr);gap:2px;padding:.45rem .9rem;border-bottom:var(--rule)}
.g-steps i{height:.4rem;background:var(--color-surface-2);outline:1px solid var(--color-ink-dim);outline-offset:-1px}
.g-steps i.ok{background:var(--color-ink);outline-color:var(--color-ink)}
.g-steps i.miss{background:repeating-linear-gradient(45deg,var(--color-ink-dim) 0 2px,transparent 2px 4px)}
.g-steps i.now{background:var(--color-accent);outline-color:var(--color-accent)}
.g-stage{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:center;
  align-items:center;padding:.6rem 1rem;gap:.7rem}
.g-prompt{font-family:var(--font-display);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(2rem,10.5vw,3.4rem);line-height:1.05;text-align:center;
  font-variant-numeric:tabular-nums;white-space:nowrap;margin:0;
  display:inline-block;max-width:none}
.g-ask{font-family:var(--font-display);font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--color-ink-dim);text-align:center;margin:0}
.g-ask[hidden],.g-answer .suffix[hidden]{display:none}
.g-answer .suffix{color:var(--color-ink-dim);font-weight:400}
/* A fraction stacked in CSS (plan §5): no MathJax, so it shows at once. */
.g-frac{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;
  font-size:.78em;line-height:1;margin:0 .08em}
.g-frac>span{padding:0 .12em}
.g-frac>span:first-child{border-bottom:.08em solid currentColor;padding-bottom:.06em}
.g-frac>span:last-child{padding-top:.06em}
.g-missed .g-frac{font-size:.85em}
/* √ from the fallback font, bar over the number from a border (plan §5a). */
.g-sqrt{display:inline-flex;align-items:baseline;white-space:nowrap}
.g-sqrt-sign{font-family:var(--font-sans);font-weight:400}
.g-sqrt-of{border-top:.07em solid currentColor;padding:.04em .05em 0}
.g-prompt.is-count{font-size:7rem;color:var(--color-accent)}
.g-prompt.is-dim{opacity:.55}
.g-answer{display:flex;align-items:center;justify-content:center;gap:.35rem;
  min-width:9rem;max-width:100%;height:3.6rem;padding:0 1rem;border:var(--rule);
  background:var(--color-surface);font-family:var(--font-display);font-weight:700;
  font-size:2rem;font-variant-numeric:tabular-nums;box-shadow:4px 4px 0 var(--color-accent)}
.g-answer[hidden],.g-reveal[hidden],.g-reveal [hidden]{display:none}
.g-answer .caret{width:.12em;height:1.1em;background:var(--color-accent);animation:g-blink 1s steps(1) infinite}
@keyframes g-blink{50%{opacity:0}}
.g-reveal{text-align:center}
.g-reveal .theirs{font-family:var(--font-display);font-size:1.4rem;color:var(--color-ink-dim);
  text-decoration:line-through;text-decoration-thickness:2px}
.g-reveal .right{display:inline-flex;align-items:center;gap:.5rem;margin-top:.35rem;
  font-family:var(--font-display);font-weight:700;font-size:2rem;
  border:var(--rule);background:var(--color-surface);padding:.2rem 1rem;
  box-shadow:4px 4px 0 var(--color-line)}
.g-reveal .right small{font-family:var(--font-sans);font-weight:400;font-size:.8rem;color:var(--color-ink-dim)}
.g-reveal .why{font-size:.88rem;color:var(--color-ink-dim);margin:.6rem 0 0;line-height:1.4}
.g-tap{font-family:var(--font-display);font-size:.7rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--color-ink-dim);margin:.4rem 0 0}

/* ---- keypad -------------------------------------------------------------- */
.g-keys{display:grid;grid-template-columns:repeat(4,1fr);
  grid-template-rows:repeat(4,minmax(3.1rem,1fr));gap:.4rem;
  padding:.6rem .7rem calc(.6rem + env(safe-area-inset-bottom));
  border-top:var(--rule);background:var(--color-surface-2);max-height:16.5rem}
.g-keys button{font-family:var(--font-display);font-weight:700;font-size:1.45rem;
  border:var(--rule);background:var(--color-surface);color:var(--color-ink);
  box-shadow:2px 2px 0 var(--color-line);cursor:pointer;padding:0;
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none}
.g-keys button:active{transform:translate(2px,2px);box-shadow:none;background:var(--color-accent-2);color:#0a0a0a}
.g-keys .fn{font-size:1.15rem;background:var(--color-surface-2)}
.g-keys .enter{grid-column:4;grid-row:3/span 2;background:var(--color-ink);
  color:var(--color-button-text);box-shadow:3px 3px 0 var(--color-accent);
  font-family:var(--font-sans);font-size:1rem}
.g-keys .off{visibility:hidden}
.g-keys.is-locked button{opacity:.45;pointer-events:none}

/* ---- end of a round ---------------------------------------------------------- */
.g-end:focus{outline:none}
.g-end .big{display:flex;align-items:baseline;gap:.6rem;margin:.1rem 0}
.g-end .big b{font-family:var(--font-display);font-size:3.6rem;line-height:1;
  letter-spacing:-.05em;color:var(--color-accent)}
.g-end .big span{font-weight:700;font-size:1.1rem}
.g-end .sub{font-size:.85rem;color:var(--color-ink-dim);margin:0 0 .9rem}
.g-best{display:flex;justify-content:space-between;align-items:center;gap:.6rem;
  border:var(--rule);background:var(--color-surface);padding:.5rem .75rem;font-size:.85rem;margin:0 0 1rem}
.g-best b{font-family:var(--font-display)}
.g-best .new{font-family:var(--font-display);font-size:.64rem;letter-spacing:.06em;
  text-transform:uppercase;background:var(--color-accent-2);color:#0a0a0a;padding:.05rem .4rem;margin-left:.5rem}
.g-best small{font-family:var(--font-display);font-size:.64rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--color-ink-dim)}
.g-homework{border-left:4px solid var(--color-accent-2);background:var(--color-surface);
  padding:.45rem .75rem;font-size:.88rem;margin:-.4rem 0 1rem}
.g-compare{font-family:var(--font-display);font-size:.78rem;letter-spacing:.03em;
  margin:-.4rem 0 1rem;color:var(--color-ink)}
.g-compare::before{content:'\2191  ';color:var(--color-accent)}
.g-up{border-left:4px solid var(--color-accent);background:var(--color-surface-2);
  padding:.55rem .8rem;font-size:.88rem;margin:0 0 1rem}
.g-missed{list-style:none;margin:0 0 1.2rem;padding:0;border:var(--rule);background:var(--color-surface)}
.g-missed li{display:flex;justify-content:space-between;gap:1rem;padding:.4rem .75rem;
  border-bottom:1px solid var(--color-surface-2);font-family:var(--font-display);font-size:.95rem}
.g-missed li:last-child{border-bottom:0}
.g-missed .a{font-weight:700;color:var(--color-accent)}
.g-end .acts{display:flex;flex-direction:column;gap:.7rem}
.g-end .acts .btn{width:100%;justify-content:center}

/* ---- what each level asks, beside the level list ------------------------ */
.g-preview .g-preview-level[hidden]{display:none}
.g-preview h2{display:flex;align-items:center;gap:.5rem;font-size:1rem;margin:0 0 .6rem;line-height:1.25}
.g-preview h2 .n{display:inline-flex;align-items:center;justify-content:center;width:1.6rem;height:1.6rem;
  font-family:var(--font-display);font-size:.78rem;background:var(--color-accent);color:#fff}
.g-preview:not(.is-live) .g-preview-level{margin-bottom:1.2rem}
.g-egs{list-style:none;padding:0;margin:0;border:var(--rule);background:var(--color-surface)}
.g-egs li{display:flex;justify-content:space-between;gap:.75rem;padding:.4rem .75rem;margin:0;
  border-bottom:1px solid var(--color-surface-2);font-size:.88rem}
.g-egs li:last-child{border-bottom:0}
.g-egs code{font-family:var(--font-display);font-weight:700}
.g-egs small{color:var(--color-ink-dim);font-size:.78rem}
.g-egs li>span:last-child{color:var(--color-ink-dim);font-family:var(--font-display)}
.g-kbd-note{color:var(--color-ink-dim);font-size:.82rem;margin:1rem 0 0;line-height:1.5}
.g-kbd-note .kbd{font-family:var(--font-display);font-size:.74rem;color:var(--color-ink);
  border:1.5px solid var(--color-ink-dim);padding:.02rem .3rem;white-space:nowrap}

/* The site's light/dark switch is fixed bottom right, which is exactly where
   Enter is. Gone while a round is on. */
body.g-playing .theme-toggle{display:none}
/* On a phone it would also sit on the Start button, so on a game page it
   moves up beside the brand, out of the way of everything below. */
@media (max-width:43.99rem){
  body.g-page .theme-toggle{position:absolute;top:.8rem;bottom:auto;right:16px;box-shadow:none}
}

/* ---- phone: the round owns the screen ----------------------------------------- */
@media (max-width:43.99rem){
  /* 100dvh, not 100vh: on a phone 100vh includes the space under the
     browser's own toolbar, which would push Enter off the bottom. */
  .g-panel.is-playing{position:fixed;inset:0;z-index:100;background:var(--color-bg)}
  .g-panel.is-playing .g-round{height:100vh;height:100dvh}
  body.g-playing{overflow:hidden}
  /* No room beside the list on a phone; each row shows an example instead. */
  .g-preview{display:none}
  .g-end{padding:.2rem 0 0}
}

/* ---- laptop: a centred panel, notes below --------------------------------------- */
@media (min-width:44rem){
  .g-wrap{max-width:54rem;padding-top:2rem}
  /* Choosing: the list on the left, what the level asks on the right. */
  .g-start{display:grid;grid-template-columns:minmax(0,1fr) 17rem;gap:2.2rem;align-items:start}
  .g-preview{border-left:var(--rule);padding-left:2.2rem;align-self:stretch}
  /* Playing and the result: just the game, centred, as signed off (§5a). */
  .g-panel[data-showing="round"],.g-panel[data-showing="end"]{max-width:34rem;margin:0 auto}
  .g-panel{border:var(--rule);background:var(--color-bg);box-shadow:8px 8px 0 var(--color-accent)}
  .g-start,.g-end{padding:1.5rem 1.6rem 1.7rem}
  .g-round{height:38rem}
  .g-keys{max-height:none;grid-template-rows:repeat(4,3.3rem)}
}

@media (prefers-reduced-motion:reduce){
  .g-answer .caret{animation:none}
  .g-keys button:active{transform:none}
}