/* Grafici interattivi (JSXGraph) */
.gi {
  --gi-a: #D9480F; --gi-b: #0E7490; --gi-c: #7048E8; --gi-d: #2B8A3E; --gi-e: #C2255C;
  --gi-target: #E03131; --gi-orig: #9aa5b1; --gi-line: #e3e8ef; --gi-board: #ffffff; --gi-card: #ffffff;
  --gi-muted: #5b6675;
  border: 1px solid var(--gi-line);
  border-radius: 16px;
  background: var(--gi-card);
  box-shadow: 0 6px 24px rgba(22, 50, 74, .10);
  margin: 1.4em 0;
  overflow: hidden;
  font-size: .8rem;
}
[data-md-color-scheme="slate"] .gi {
  --gi-a: #FF8A4C; --gi-b: #3BC9DB; --gi-c: #A58BFF; --gi-d: #63E6A0; --gi-e: #F783AC;
  --gi-target: #FF6B6B; --gi-orig: #6b7b8f; --gi-line: #2a3b52; --gi-board: #101b29; --gi-card: #152131;
  --gi-muted: #9fb0c3;
  box-shadow: none;
}
.gi-testa {
  background: linear-gradient(120deg, #16324A, #0E7490 70%, #15AABF);
  color: #fff;
  padding: .7em 1.1em;
  display: flex; align-items: center; justify-content: space-between; gap: .8em; flex-wrap: wrap;
}
.gi-testa .gi-titolo { font-weight: 700; font-size: 1.05em; }
.gi-testa .gi-titolo small { font-weight: 400; opacity: .85; margin-left: .4em; }
.gi-tabs { display: flex; gap: .4em; }
.gi-tab { border: 0; background: rgba(255,255,255,.18); color: #fff; padding: .25em .9em; border-radius: 999px; cursor: pointer; font: inherit; font-weight: 600; }
.gi-tab[aria-selected="true"] { background: #fff; color: #16324A; }
.gi-corpo { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(240px, 1fr); gap: 1em; padding: 1em; }
@media (max-width: 860px) { .gi-corpo { grid-template-columns: 1fr; } }
.gi-formula { font-size: 1.2em; min-height: 2.4em; display: flex; align-items: center; justify-content: center; overflow-x: auto; padding: .2em 0 .5em; }
.gi-board { width: 100%; aspect-ratio: 4 / 3; border-radius: 12px; border: 1px solid var(--gi-line); background: var(--gi-board); touch-action: none; }
.gi-legenda { display: flex; flex-wrap: wrap; gap: .9em; justify-content: center; color: var(--gi-muted); margin-top: .5em; font-size: .92em; }
.gi-legenda i { display: inline-block; width: 22px; border-top: 3px solid; vertical-align: middle; margin-right: .35em; }
.gi-chips { display: flex; flex-wrap: wrap; gap: .35em; margin: .2em 0 .6em; }
.gi-chip { border: 1px solid var(--gi-line); background: transparent; color: inherit; border-radius: 999px; padding: .2em .8em; cursor: pointer; font: inherit; }
.gi-chip[aria-pressed="true"] { background: #16324A; color: #fff; border-color: #16324A; }
[data-md-color-scheme="slate"] .gi-chip[aria-pressed="true"] { background: #0E7490; border-color: #0E7490; }
.gi-ctrl { padding: .45em 0 .55em; border-top: 1px solid var(--gi-line); }
.gi-ctrl:first-of-type { border-top: 0; }
.gi-ctrl .gi-riga { display: flex; align-items: center; justify-content: space-between; gap: .5em; }
.gi-nome { font-weight: 800; font-size: 1.15em; }
.gi-val { font-family: "JetBrains Mono", monospace; min-width: 3.8em; text-align: right; }
.gi-play { border: 0; background: transparent; color: var(--gi-muted); cursor: pointer; font-size: 1em; padding: .1em .4em; border-radius: 6px; }
.gi-play:hover, .gi-play.on { background: var(--gi-line); color: inherit; }
.gi-ctrl small { display: block; color: var(--gi-muted); line-height: 1.3; margin-top: .1em; }
.gi input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 6px; background: var(--gi-line); margin: .6em 0 .2em; }
.gi input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--c); border: 3px solid var(--gi-card); box-shadow: 0 1px 6px rgba(0,0,0,.3); cursor: grab; }
.gi input[type=range]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--c); border: 3px solid var(--gi-card); cursor: grab; }
.gi-btn { border: 0; border-radius: 10px; padding: .45em .9em; font: inherit; font-weight: 600; cursor: pointer; background: var(--gi-line); color: inherit; margin: .3em .3em 0 0; }
.gi-btn.primario { background: #0E7490; color: #fff; }
.gi-domanda { border-left: 4px solid #0E7490; padding: .5em .8em; background: color-mix(in srgb, #0E7490 8%, transparent); border-radius: 6px; margin-top: .8em; line-height: 1.4; }
.gi-metro { height: 10px; background: var(--gi-line); border-radius: 6px; overflow: hidden; margin: .4em 0 .2em; }
.gi-metro > div { height: 100%; width: 0; background: linear-gradient(90deg, var(--gi-target), #F59F00, #2B8A3E); transition: width .25s; }
.gi-vinto { font-weight: 800; color: #2B8A3E; min-height: 1.4em; }
[data-md-color-scheme="slate"] .gi-vinto { color: #63E6A0; }
.gi-punti { font-family: "JetBrains Mono", monospace; }
.gi-letture { font-size: .95em; background: color-mix(in srgb, var(--gi-line) 50%, transparent); border-radius: 8px; padding: .5em .7em; margin-top: .6em; line-height: 1.6; }
.gi [hidden] { display: none !important; }
.gi .JXGtext { color: var(--gi-muted) !important; font-family: "Source Sans 3", sans-serif !important; }

/* galleria del laboratorio interattivo */
.md-typeset .galleria { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1em; }

.md-typeset .gi table.gi-tabella { display: table; width: 100%; border-collapse: collapse; font-family: "JetBrains Mono", monospace; font-size: .85em; margin: 0; box-shadow: none; border: 0; }
.md-typeset .gi table.gi-tabella th, .md-typeset .gi table.gi-tabella td { text-align: right; padding: .1em .35em; border: 0; border-bottom: 1px solid var(--gi-line); background: transparent; min-width: 0; }
.md-typeset .gi table.gi-tabella th { font-weight: 700; }

.md-typeset .gi-invito { margin: 1.6em 0 -.6em; color: var(--c-interattivo); font-size: .85em; }