/* Light Lab: end-of-lesson mini game for "A light switch for the brain".
   Mounts into <div id="light-game" class="ghost-game dark-screen"> (those classes keep it a dark "screen" on the light theme).
   Everything is scoped under .light-game (added by game.js) and uses tokens.css only, plus the lesson's two light colours. */

.light-game{
  --lg-blue:#7fb2ff; --lg-amber:#f2c14e; --lg-gold:var(--gold,#e8c37a);
  container-type:inline-size;
  position:relative;
  color:var(--text);
  font-family:var(--display);
  background:var(--nebula);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(14px,3vw,28px);
  overflow:hidden;
  isolation:isolate;
}
.light-game *,.light-game *::before,.light-game *::after{box-sizing:border-box}
.light-game [hidden]{display:none!important}
.light-game > section{padding:0;border:0;margin:0}
.light-game :focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* ---------- shared bits ---------- */
.light-game .lg-eyebrow,.light-game .lg-tag{font-family:var(--display);font-weight:600;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin:0}
.light-game .lg-btn{
  font-family:var(--display);font-weight:600;font-size:1rem;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 22px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);color:var(--text);cursor:pointer;
  transition:border-color var(--t-tap) var(--e-out),background var(--t-tap) var(--e-out),transform var(--t-tap) var(--e-out),opacity var(--t-tap) var(--e-out);
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;-webkit-user-select:none
}
.light-game .lg-btn:hover{border-color:var(--teal)}
.light-game .lg-btn:active{transform:scale(.96)}
.light-game .lg-btn:disabled{opacity:.45;cursor:default;transform:none}
.light-game .lg-btn.lg-primary{background:var(--teal);border-color:var(--teal);color:var(--void)}
.light-game .lg-btn.lg-primary:hover:not(:disabled){background:var(--teal-glow);border-color:var(--teal-glow)}
.light-game .lg-btn.lg-big{font-size:1.15rem;min-height:56px;padding:16px 44px}

.light-game .lg-star{display:inline-block;width:1em;height:1em;color:var(--line);vertical-align:-.12em}
.light-game .lg-star svg{width:100%;height:100%;display:block;fill:currentColor}
.light-game .lg-star.is-on{color:var(--teal);filter:drop-shadow(0 0 6px color-mix(in srgb,var(--teal) 55%,transparent))}

.light-game .lg-enter{animation:lg-in var(--t-reveal) var(--e-out) both}
@keyframes lg-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- start screen ---------- */
.light-game .lg-start{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:clamp(12px,4vw,36px) 4px clamp(8px,3vw,24px)}
.light-game .lg-hero-art{width:min(300px,86%);height:auto;aspect-ratio:2/1;display:block}
.light-game .lg-title{font-family:var(--display);font-size:var(--step-3);font-weight:800;letter-spacing:-.02em;line-height:1.05;margin:0;color:var(--text)}
.light-game .lg-pitch{font-family:var(--read);font-size:var(--step-1);line-height:1.4;color:var(--text-2);max-width:36ch;margin:0}
.light-game .lg-meta{font-family:var(--display);font-size:.95rem;color:var(--dim);margin:0}
.light-game .lg-meta b{color:var(--teal);font-family:var(--mono)}

/* ---------- play screen ---------- */
.light-game .lg-play{display:grid;gap:14px;max-width:820px;margin:0 auto}
.light-game .lg-hud{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.light-game .lg-hud h3{font-family:var(--display);font-size:var(--step-1);font-weight:700;margin:2px 0 0;color:var(--text)}
.light-game .lg-hud-right{display:flex;align-items:center;gap:14px}
.light-game .lg-pips{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.light-game .lg-pips li{width:22px;height:6px;border-radius:99px;background:var(--line);transition:background var(--t-reveal) var(--e-out),width var(--t-reveal) var(--e-out)}
.light-game .lg-pips li.is-done{background:var(--teal-deep)}
.light-game .lg-pips li.is-now{background:var(--teal);width:34px}
.light-game .lg-score{font-family:var(--mono);font-weight:600;font-size:1rem;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--panel)}
.light-game .lg-score.is-bump{animation:lg-bump var(--t-celebrate) var(--e-spring)}
@keyframes lg-bump{30%{transform:scale(1.22)}100%{transform:none}}

.light-game .lg-talk{display:flex;align-items:flex-start;gap:12px}
.light-game .lg-talk neu-mascot{--size:clamp(56px,11cqi,80px);flex:none}
.light-game .lg-speech{
  position:relative;flex:1;margin:4px 0 0;min-height:3em;
  background:var(--panel);border:1px solid color-mix(in srgb,var(--teal) 45%,var(--line));
  border-radius:var(--r-md);padding:12px 14px;
  font-family:var(--read);font-size:1.05rem;line-height:1.45;color:var(--text)
}
.light-game .lg-speech::before{
  content:"";position:absolute;left:-7px;top:20px;width:12px;height:12px;background:var(--panel);
  border-left:1px solid color-mix(in srgb,var(--teal) 45%,var(--line));border-bottom:1px solid color-mix(in srgb,var(--teal) 45%,var(--line));transform:rotate(45deg)
}
.light-game .lg-speech b{color:var(--teal-glow);font-weight:700}

.light-game .lg-stage{display:grid;gap:14px;min-width:0}
.light-game .lg-scene{background:var(--void);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.light-game .lg-cv{display:block;width:100%}
.light-game .lg-choices{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.light-game .lg-group{display:grid;gap:8px;min-width:0;align-content:start}
.light-game .lg-seg{display:flex;flex-wrap:wrap;gap:8px}
.light-game .lg-choice{
  position:relative;flex:1 1 140px;min-height:48px;padding:10px 14px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;text-align:center;
  font-family:var(--display);font-weight:600;font-size:.98rem;line-height:1.25;color:var(--text);cursor:pointer;
  background:var(--panel);border:2px solid var(--line);border-radius:var(--r-md);
  transition:border-color var(--t-tap) var(--e-out),transform var(--t-tap) var(--e-out),background var(--t-tap) var(--e-out);
  -webkit-tap-highlight-color:transparent;touch-action:manipulation
}
.light-game .lg-choice:hover:not(:disabled){border-color:var(--teal)}
.light-game .lg-choice:active:not(:disabled){transform:scale(.97)}
.light-game .lg-choice[aria-pressed="true"]{border-color:var(--teal);background:color-mix(in srgb,var(--teal) 16%,var(--panel));color:var(--text)}
.light-game .lg-choice[aria-pressed="true"]::after{content:"✓";font-weight:700;color:var(--teal)}
.light-game .lg-choice:disabled{cursor:default;opacity:.7}
.light-game .lg-sw{width:14px;height:14px;border-radius:50%;flex:none;border:1px solid rgba(0,0,0,.3)}
.light-game .lg-sw-blue{background:var(--lg-blue)}
.light-game .lg-sw-yellow,.light-game .lg-sw-amber{background:var(--lg-amber)}
.light-game .lg-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.light-game .lg-hint{font-family:var(--display);font-size:.95rem;color:var(--dim)}
.light-game .lg-note{font-family:var(--read);font-size:1.05rem;line-height:1.45;color:var(--text-2);margin:0;min-height:1.45em}
.light-game .lg-note b{color:var(--text)}
@container (min-width:640px){
  .light-game .lg-choices{grid-template-columns:repeat(3,minmax(0,1fr))}
  .light-game .lg-seg{flex-direction:column}
  .light-game .lg-choice{flex:none;width:100%}
}

/* result + controls */
.light-game .lg-result{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 16px;border-radius:var(--r-md);background:var(--panel);border:1px solid var(--line)}
.light-game .lg-result .lg-star{font-size:1.6rem}
.light-game .lg-result b{font-family:var(--display);font-size:1.2rem;font-weight:700}
.light-game .lg-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;justify-content:flex-end}
.light-game .lg-learn{font-family:var(--display);font-size:.95rem;color:var(--teal);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--teal) 40%,transparent);text-underline-offset:3px;margin-right:auto;padding:10px 0}
.light-game .lg-learn:hover{text-decoration-color:var(--teal)}

/* ---------- end screen ---------- */
.light-game .lg-end{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:clamp(8px,3vw,28px) 0}
.light-game .lg-end neu-mascot{--size:clamp(96px,22cqi,130px)}
.light-game .lg-rank{font-family:var(--display);font-size:var(--step-3);font-weight:800;letter-spacing:-.02em;line-height:1.05;margin:0;color:var(--text);text-shadow:0 0 28px color-mix(in srgb,var(--teal) 45%,transparent)}
.light-game .lg-total span{font-size:.95rem}
.light-game .lg-total{font-family:var(--mono);color:var(--dim);display:flex;flex-wrap:wrap;justify-content:center;align-items:baseline;gap:8px;margin:0}
.light-game .lg-total b{font-size:clamp(2.4rem,9cqi,3.4rem);color:var(--teal);font-weight:600;line-height:1;font-variant-numeric:tabular-nums}
.light-game .lg-endline{font-family:var(--read);font-size:var(--step-0);color:var(--text-2);max-width:40ch;margin:0}
.light-game .lg-recap{list-style:none;margin:6px 0 0;padding:0;width:100%;max-width:520px;display:grid;gap:8px}
.light-game .lg-recap li{display:grid;grid-template-columns:1fr auto;align-items:center;gap:4px 12px;padding:10px 14px;border-radius:var(--r-sm);background:var(--panel);border:1px solid var(--line);font-size:.98rem;text-align:left}
.light-game .lg-firsttry{font-family:var(--mono);font-size:.85rem;color:var(--dim);border:1px solid var(--line);border-radius:999px;padding:3px 9px}
.light-game .lg-firsttry.is-on{color:var(--void);background:var(--teal);border-color:var(--teal)}
.light-game .lg-recap-learn{grid-column:1/-1;font-family:var(--display);font-size:.92rem;color:var(--teal);text-underline-offset:3px;padding:4px 0}
.light-game .lg-best{font-family:var(--display);font-size:.95rem;color:var(--dim);margin:0}
.light-game .lg-best .lg-new{color:var(--void);background:var(--ok);border-radius:999px;padding:2px 8px;margin-left:6px;font-weight:600}

.light-game .lg-foot{margin:18px 0 0;padding-top:12px;border-top:1px solid var(--line);font-family:var(--read);font-size:.95rem;line-height:1.5;color:var(--dim)}

/* Neu fallback if sfn.js is missing */
.light-game neu-mascot.lg-neu-fallback{display:inline-block;width:var(--size,80px);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 38% 32%,var(--teal-glow),var(--teal) 45%,var(--teal-deep))}

@container (max-width:420px){
  .light-game .lg-speech{font-size:1rem;padding:10px 12px}
  .light-game .lg-pips li{width:14px}
  .light-game .lg-pips li.is-now{width:24px}
}

@media (prefers-reduced-motion: reduce){
  .light-game .lg-enter,.light-game .lg-score.is-bump{animation:none!important}
  .light-game .lg-pips li{transition:none!important}
}

/* floating pill that brings the reader back to the game after reviewing (lives on <body>) */
.lg-backpill{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);z-index:60;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:11px 18px;border-radius:999px;background:var(--teal);color:var(--void);font:600 .95rem/1 var(--display);text-decoration:none;box-shadow:0 12px 30px rgba(0,0,0,.35);animation:lg-pill-in .45s var(--e-spring,ease-out)}
.lg-backpill[hidden]{display:none}
@keyframes lg-pill-in{from{opacity:0;transform:translate(-50%,16px)}to{opacity:1;transform:translate(-50%,0)}}
@media (prefers-reduced-motion: reduce){.lg-backpill{animation:none}}