@font-face { font-family: "Nasalization"; src: url("fonts/Nasalization-Rg.otf") format("opentype"); font-display: swap; }
:root {
  --nero: #111111; --rosso: #ff3b30; --bianco: #ffffff; --carta: #f5f4f1; --grigio: #6b6b6b; --linea: #dedbd4;
  --a: #ff3b30; --b: #1f6feb; --c: #f0a500; --d: #1a9c5b; --ok: #1a9c5b; --ko: #c62828;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--nero); background: var(--carta); line-height: 1.45; }
h1, h2, h3 { margin: 0; line-height: 1.15; text-wrap: balance; }
.marca { font-family: "Nasalization", sans-serif; letter-spacing: .04em; }
.marca b { color: var(--rosso); font-weight: normal; }
.testata { background: var(--nero); color: var(--bianco); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.testata .nome { font-size: 20px; }
.testata .nota { font-size: 13px; opacity: .7; }
.pagina { max-width: 920px; margin: 0 auto; padding: 24px 16px 60px; }
.scheda { background: var(--bianco); border: 1px solid var(--linea); border-radius: 14px; padding: 22px; margin-bottom: 18px; }
.passo { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--rosso); margin-bottom: 6px; }
label { display: block; font-size: 14px; font-weight: 600; margin: 14px 0 6px; }
input[type=text], input[type=number], textarea, select { width: 100%; font: inherit; padding: 11px 12px; border: 1px solid #bdb9b0; border-radius: 9px; background: #fff; color: inherit; }
textarea { min-height: 150px; resize: vertical; font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
input:focus, textarea:focus, select:focus, button:focus-visible { outline: 3px solid rgba(255,59,48,.35); outline-offset: 1px; }
.riga { display: flex; gap: 12px; flex-wrap: wrap; }
.riga > * { flex: 1 1 160px; }
button, .bottone { font: inherit; font-weight: 700; border: 0; border-radius: 10px; padding: 12px 18px; cursor: pointer; background: var(--nero); color: #fff; text-decoration: none; display: inline-block; text-align: center; }
button.primario, .bottone.primario { background: var(--rosso); }
button.chiaro { background: #fff; color: var(--nero); border: 1px solid #bdb9b0; }
button.piccolo { padding: 7px 11px; font-size: 13px; }
button:disabled { opacity: .45; cursor: not-allowed; }
.azioni { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; align-items: center; }
.aiuto { color: var(--grigio); font-size: 14px; margin: 6px 0 0; }
.errore { color: var(--ko); font-weight: 600; margin-top: 10px; min-height: 1.2em; }
.domanda { border: 1px solid var(--linea); border-radius: 12px; padding: 14px; margin-top: 12px; background: #fcfbf9; }
.domanda .capo { display: flex; gap: 10px; align-items: center; }
.domanda .num { font-weight: 800; color: var(--rosso); min-width: 26px; }
.opz { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.opz input[type=radio] { width: 20px; height: 20px; accent-color: var(--ok); flex: none; }
.opz.giusta input[type=text] { border-color: var(--ok); background: #f1faf5; }
pre.prompt { white-space: pre-wrap; background: #17171a; color: #f2f2f2; padding: 14px; border-radius: 10px; font-size: 13px; margin: 8px 0 0; }
.nascosto { display: none !important; }

/* ---- schermo da proiettare ---- */
body.schermo { background: var(--nero); color: #fff; min-height: 100vh; }
.palco { max-width: 1240px; margin: 0 auto; padding: 22px 28px 40px; }
.barra { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 22px; }
.barra .titolo { font-size: 22px; font-weight: 700; }
.barra .dati { font-size: 16px; opacity: .75; }
.sala { display: grid; grid-template-columns: minmax(260px, 380px) 1fr; gap: 36px; align-items: center; }
.qr { background: #fff; padding: 18px; border-radius: 18px; }
.qr img, .qr svg { width: 100%; height: auto; display: block; }
.grande { font-size: clamp(30px, 4.4vw, 58px); font-weight: 800; }
.codice { font-family: "Nasalization", monospace; font-size: clamp(40px, 6vw, 84px); color: var(--rosso); letter-spacing: .12em; }
.indirizzo { font-size: 20px; opacity: .85; overflow-wrap: anywhere; }
.nomi { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.nomi span { background: #2a2a2e; padding: 6px 12px; border-radius: 999px; font-size: 16px; }
.testo-domanda { font-size: clamp(28px, 3.6vw, 50px); font-weight: 800; margin: 6px 0 24px; }
.griglia { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.risp { border-radius: 14px; padding: 20px 22px; font-size: clamp(20px, 2.2vw, 30px); font-weight: 700; color: #fff; display: flex; gap: 14px; align-items: center; position: relative; overflow: hidden; }
.risp .let { background: rgba(0,0,0,.28); border-radius: 8px; width: 42px; height: 42px; display: grid; place-items: center; flex: none; }
.risp.k0 { background: var(--a); } .risp.k1 { background: var(--b); } .risp.k2 { background: var(--c); } .risp.k3 { background: var(--d); }
.risp.spenta { opacity: .28; }
.risp .conta { margin-left: auto; font-variant-numeric: tabular-nums; background: rgba(0,0,0,.28); padding: 4px 12px; border-radius: 8px; }
.tempo { height: 14px; background: #2a2a2e; border-radius: 999px; overflow: hidden; margin: 0 0 20px; }
.tempo i { display: block; height: 100%; background: var(--rosso); width: 100%; }
.secondi { font-family: "Nasalization", monospace; font-size: 44px; font-variant-numeric: tabular-nums; }
.comandi { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; align-items: center; }
.comandi button { font-size: 18px; padding: 14px 24px; }
.comandi button.chiaro { background: transparent; color: #fff; border-color: #55555c; }
.classifica { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.classifica li { display: flex; gap: 14px; align-items: center; background: #1d1d21; border-radius: 12px; padding: 12px 18px; font-size: 22px; }
.classifica li .pos { font-family: "Nasalization", monospace; width: 44px; color: #9a9aa2; }
.classifica li .pt { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 800; }
.classifica li:nth-child(1) { background: var(--rosso); font-size: 28px; }
.classifica li:nth-child(1) .pos { color: #fff; }
.due { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
table.report { width: 100%; border-collapse: collapse; font-size: 16px; }
table.report th, table.report td { text-align: left; padding: 9px 8px; border-bottom: 1px solid #2f2f35; vertical-align: top; }
table.report td.n { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.barretta { height: 8px; background: #2a2a2e; border-radius: 99px; overflow: hidden; min-width: 90px; margin-top: 6px; }
.barretta i { display: block; height: 100%; background: var(--ok); }

/* ---- telefono dello studente ---- */
body.gioca { background: var(--nero); color: #fff; min-height: 100vh; min-height: 100dvh; }
.tel { max-width: 520px; margin: 0 auto; padding: 18px 16px 30px; min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
.tel .cima { display: flex; justify-content: space-between; align-items: center; font-size: 14px; opacity: .8; margin-bottom: 16px; gap: 10px; }
.tel h1 { font-size: 26px; margin-bottom: 10px; }
.tel p { margin: 6px 0; }
.tel input[type=text] { font-size: 20px; padding: 14px; text-align: center; }
.tel button.largo { width: 100%; font-size: 20px; padding: 16px; margin-top: 14px; }
.scelte { display: grid; gap: 12px; margin-top: 14px; flex: 1; align-content: start; }
.scelte button { text-align: left; font-size: 19px; padding: 18px 16px; border-radius: 14px; display: flex; gap: 12px; align-items: center; min-height: 64px; }
.scelte button .let { background: rgba(0,0,0,.28); border-radius: 8px; width: 34px; height: 34px; display: grid; place-items: center; flex: none; }
.scelte .k0 { background: var(--a); } .scelte .k1 { background: var(--b); } .scelte .k2 { background: var(--c); } .scelte .k3 { background: var(--d); }
.scelte button:disabled { opacity: 1; cursor: default; }
.scelte button.scelta { outline: 4px solid #fff; }
.scelte button.spenta { opacity: .3; }
.esito { border-radius: 16px; padding: 22px; text-align: center; margin-top: 16px; }
.esito.ok { background: var(--ok); } .esito.ko { background: var(--ko); } .esito.neutro { background: #2a2a2e; }
.esito .big { font-size: 34px; font-weight: 800; }
.centro { text-align: center; margin: auto 0; }
.punti { font-family: "Nasalization", monospace; font-size: 46px; color: var(--rosso); }

@media (max-width: 760px) {
  .sala, .due, .griglia { grid-template-columns: 1fr; }
  .palco { padding: 16px; }
}
@media (prefers-reduced-motion: no-preference) {
  .tempo i { transition: width .25s linear; }
}