/* Giochi della schermata di caricamento. Colori: variabili di index.html
   (tema dell'app, chiaro o scuro). Classi g-* (giochi) e fc-* (diagrammi). */
.g { width: min(560px, 100%); box-sizing: border-box; min-height: 330px; display: grid; gap: 10px; align-content: start;
    background: var(--frame); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; text-align: left; color: var(--text); }
.g button { font: inherit; font-size: 14px; color: var(--strong); background: var(--widget); border: 1px solid transparent; border-radius: 5px; padding: 5px 12px; cursor: pointer; }
.g button:hover { background: var(--hover); }
.g button:disabled { opacity: .5; cursor: default; }
.g button:focus-visible, .g [tabindex]:focus-visible, .g input:focus-visible { outline: 2px solid var(--fill); outline-offset: 2px; }
.g .g-primary { background: var(--fill); color: #fff; }
.g .g-small { padding: 2px 9px; font-size: 13px; }
/* Gioco chiuso ad app pronta (loader.js). */
.g.g-frozen button, .g.g-frozen input, .g.g-frozen [role="button"], .g.g-frozen canvas { opacity: .45; }
.g-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.g-col { display: grid; gap: 10px; align-content: start; min-width: 0; }
.g-hud { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; font-size: 13px; font-variant-numeric: tabular-nums; }
.g-goal { font-size: 14px; color: var(--strong); }
.g-center { text-align: center; }
.g-msg { min-height: 2.9em; font-size: 14px; }
.g-good { color: var(--good); }
.g-bad { color: var(--bad); }
.g-mono { font-family: var(--mono) !important; text-align: left; }
.g-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; align-items: start; }
@media (max-width: 480px) { .g-split, .g-robot { grid-template-columns: 1fr !important; } }

/* Diagrammi */
.g-flow { width: 100%; max-height: 300px; }
.g-flow text { font: 11px var(--mono); fill: var(--strong); pointer-events: none; }
.fc-shape { fill: var(--frame); stroke: var(--text); stroke-width: 1.2; }
.g-flow [role="button"] { cursor: pointer; }
.g-flow [role="button"]:hover .fc-shape { fill: var(--accent-soft); }
.fc-on { fill: var(--accent-soft) !important; stroke: var(--fill); stroke-width: 2; }
.fc-ok { fill: var(--widget) !important; }
.fc-bug { fill: var(--bad) !important; stroke: var(--bad); }
.fc-edge { fill: none; stroke: var(--text); stroke-width: 1.2; }
.fc-head { fill: var(--text); }
.g-flow .fc-label { font: 10px var(--ui); fill: var(--muted); }
.g-choices { display: grid; gap: 8px; }
.g .g-right { background: var(--good); color: var(--frame); }
.g .g-wrong { background: var(--bad); color: var(--frame); }
.g-console { font: 13px var(--mono); background: var(--bg); border: 1px solid var(--line); border-radius: 5px; padding: 6px 8px; min-height: 1.5em; color: var(--strong); }

/* 1 · Indovina */
.g-big { font-size: 34px; font-weight: 700; color: var(--strong); text-align: center; font-variant-numeric: tabular-nums; }
.g-range { -webkit-appearance: none; appearance: none; width: 100%; height: 10px; border-radius: 5px; background: var(--track); }
.g-range::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--fill); border: 2px solid var(--frame); }
.g-range::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--fill); border: 2px solid var(--frame); }
.g-scale { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.g-history { font: 13px var(--mono); color: var(--muted); overflow-wrap: anywhere; }

/* 4 · Robot */
.g-robot { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 14px; align-items: start; }
.g-board { display: grid; grid-template-columns: repeat(5, 34px); grid-template-rows: repeat(5, 34px); gap: 3px; }
.g-cell { background: var(--widget); border-radius: 4px; display: grid; place-items: center; font-size: 18px; }
.g-wall { background: var(--wall); }
.g-trail { background: var(--accent-soft); }
.g-star::after { content: "★"; color: var(--gold); }
.g-bot { background: var(--fill); }
.g-bot::after { content: "●"; color: #fff; font-size: 16px; }
.g-prog { display: flex; flex-wrap: wrap; gap: 4px; min-height: 30px; padding: 4px; border: 1px dashed var(--line); border-radius: 5px; }
.g-prog span { width: 24px; height: 24px; display: grid; place-items: center; background: var(--widget); border-radius: 4px; font-size: 14px; }
.g-prog span.g-run { background: var(--fill); color: #fff; }
.g-prog span.g-hint { width: auto; background: none; color: var(--muted); font-size: 12px; padding: 0 4px; }

/* 5 · Bug */
.g-bugs { position: relative; height: 250px; border-radius: 6px; background: var(--bg); border: 1px solid var(--line); overflow: hidden; cursor: crosshair; touch-action: manipulation; }
.g-bugs canvas { width: 100%; height: 100%; display: block; }
.g-over { position: absolute; inset: 0; display: grid; place-items: center; align-content: center; gap: 10px; text-align: center; padding: 16px;
    background: color-mix(in srgb, var(--frame) 72%, transparent); }

/* 8 · Vero o falso */
.g-vars { font: 14px var(--mono); color: var(--muted); text-align: center; white-space: pre; }
.g-expr { font: 600 22px var(--mono); color: var(--strong); text-align: center; min-height: 2.6em; display: grid; place-items: center; text-wrap: balance; }
.g-tf { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.g .g-tf button { font-size: 18px; padding: 12px; font-weight: 600; }
.g-flash-good { animation: g-good .35s; }
.g-flash-bad { animation: g-bad .35s; }
@keyframes g-good { from { background: var(--good); } }
@keyframes g-bad { from { background: var(--bad); } }

/* 9 · Bit */
.g-target { font: 700 36px var(--mono); color: var(--strong); text-align: center; font-variant-numeric: tabular-nums; }
.g-bits { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 6px; }
.g .g-bits button { display: grid; gap: 2px; padding: 8px 0; justify-items: center; }
.g-bits b { font: 700 22px var(--mono); }
.g-bits small { font-size: 11px; color: var(--muted); }
.g .g-bits button.g-on { background: var(--fill); color: #fff; }
.g-bits button.g-on small { color: #fff; }
.g-sum { font: 14px var(--mono); text-align: center; color: var(--muted); min-height: 1.4em; overflow-wrap: anywhere; }

/* 11 · Tartaruga */
.g-turtle { width: 100%; height: 190px; display: block; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; }
.g-code { font: 14px var(--mono); color: var(--strong); background: var(--bg); border: 1px solid var(--line); border-radius: 5px; padding: 8px 10px; display: grid; gap: 6px; }
.g-code .g-row { gap: 6px; }
.g-indent { padding-left: 1.5em; }
.g-step { display: inline-flex; align-items: center; gap: 4px; }
.g-step output { min-width: 2.6em; text-align: center; font-weight: 700; color: var(--fill); }

/* 12 · Grafo */
.g-graph { width: 100%; height: auto; display: block; }
.g-e { stroke: var(--line); stroke-width: 3; }
.g-e.g-on { stroke: var(--fill); stroke-width: 5; }
.g-e.g-best { stroke: var(--good); stroke-width: 5; stroke-dasharray: 6 4; }
.g-w { font: 600 12px var(--mono); fill: var(--strong); paint-order: stroke; stroke: var(--frame); stroke-width: 4px; }
.g-n circle { fill: var(--frame); stroke: var(--text); stroke-width: 1.6; cursor: pointer; }
.g-n.g-on circle { fill: var(--fill); stroke: var(--fill); }
.g-n.g-can circle { stroke: var(--fill); stroke-width: 2.6; }
.g-n text { font: 700 13px var(--ui); fill: var(--strong); pointer-events: none; }
.g-n.g-on text { fill: #fff; }

@media (prefers-reduced-motion: reduce) { .g * { transition: none !important; animation: none !important; } }