:root {
  --fondo: #0f1720;
  --pannello: #17222e;
  --pannello-2: #1e2b39;
  --linea: #2b3b4c;
  --testo: #e8eef5;
  --tenue: #93a4b7;
  --accento: #f5c542;
  --accento-testo: #1b1405;
  --bene: #5fd18b;
  --male: #ff7a6b;
  --raggio: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; background: var(--fondo); color: var(--testo); }
body { font-size: 15px; line-height: 1.45; }
button, select, textarea, input { font: inherit; color: inherit; }
a { color: var(--accento); }

button {
  background: var(--pannello-2); border: 1px solid var(--linea); border-radius: 8px;
  padding: 7px 12px; cursor: pointer;
}
button:hover { border-color: var(--tenue); }
button.primario { background: var(--accento); color: var(--accento-testo); border-color: var(--accento); font-weight: 600; }
button:disabled { opacity: .5; cursor: default; }
select, input[type=text], input[type=password] {
  background: var(--pannello-2); border: 1px solid var(--linea); border-radius: 8px; padding: 7px 10px;
}

/* Workstation ---------------------------------------------------------- */
.lab { display: grid; grid-template-rows: auto 1fr; height: 100vh; }
.barra {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--pannello); border-bottom: 1px solid var(--linea);
}
.barra h1 { font-size: 17px; margin: 0 8px 0 0; font-weight: 650; }
.barra .spazio { flex: 1; }
.budget { display: flex; align-items: center; gap: 8px; color: var(--tenue); font-size: 13px; }
.budget .tacca { width: 120px; height: 8px; background: var(--pannello-2); border-radius: 4px; overflow: hidden; }
.budget .tacca i { display: block; height: 100%; background: var(--bene); width: 0; }

.corpo { display: grid; grid-template-columns: minmax(320px, 36%) 1fr; min-height: 0; }
.chat { display: grid; grid-template-rows: auto 1fr auto; min-height: 0; border-right: 1px solid var(--linea); }
.sfida { padding: 12px 16px; border-bottom: 1px solid var(--linea); background: var(--pannello); }
.sfida select { width: 100%; }
.sfida p { margin: 8px 0 0; color: var(--tenue); font-size: 14px; }
.sfida .oltre { color: var(--testo); }
.messaggi { overflow-y: auto; padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { padding: 9px 12px; border-radius: var(--raggio); max-width: 95%; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { background: var(--pannello-2); align-self: flex-end; }
.msg.assistant { background: transparent; border: 1px solid var(--linea); align-self: flex-start; }
.msg.errore { border-color: var(--male); color: var(--male); }
.msg .codice-nota { display: block; margin-top: 6px; color: var(--tenue); font-size: 13px; }
.msg.scrive::after { content: "▍"; animation: lampeggia 1s steps(2) infinite; }
@keyframes lampeggia { 50% { opacity: 0; } }

.scrivi { padding: 12px 16px; border-top: 1px solid var(--linea); background: var(--pannello); display: grid; gap: 8px; }
.scrivi textarea {
  width: 100%; min-height: 76px; resize: vertical; background: var(--pannello-2);
  border: 1px solid var(--linea); border-radius: 8px; padding: 9px 10px;
}
.scrivi .riga { display: flex; gap: 8px; align-items: center; }
.scrivi .riga .spazio { flex: 1; }
.suggerimento { color: var(--tenue); font-size: 13px; }

.risultato { display: grid; grid-template-rows: auto 1fr auto; min-height: 0; }
.schede { display: flex; gap: 4px; padding: 8px 12px 0; background: var(--pannello); border-bottom: 1px solid var(--linea); }
.schede button { border-bottom-left-radius: 0; border-bottom-right-radius: 0; border-bottom: none; background: transparent; }
.schede button.attiva { background: var(--fondo); border-color: var(--linea); }
.schede .spazio { flex: 1; }
.vista { position: relative; min-height: 0; }
.vista iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #fff; }
.vista textarea {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0; resize: none; padding: 14px 16px;
  background: #0b1219; color: #d6e2ee; font: 13px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace; tab-size: 2;
}
.vuoto { position: absolute; inset: 0; display: grid; place-items: center; color: var(--tenue); text-align: center; padding: 24px; }
.errori { background: #2a1416; border-top: 1px solid var(--male); padding: 8px 14px; display: none; gap: 10px; align-items: center; }
.errori.visibili { display: flex; }
.errori code { flex: 1; color: var(--male); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Door and workstation picker ------------------------------------------ */
.porta { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.porta form, .scelta { background: var(--pannello); border: 1px solid var(--linea); border-radius: 14px; padding: 28px; width: min(420px, 100%); display: grid; gap: 14px; }
.porta h1 { margin: 0; font-size: 22px; }
.porta p { margin: 0; color: var(--tenue); }
.numeri { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.numeri button { padding: 14px 0; font-size: 18px; font-weight: 600; }
.velo { position: fixed; inset: 0; background: rgba(5, 10, 15, .85); display: grid; place-items: center; z-index: 10; padding: 16px; }

/* Presenter ------------------------------------------------------------- */
.regia { padding: 16px; display: grid; gap: 16px; }
.regia .comandi { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.griglia { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.carta { background: var(--pannello); border: 1px solid var(--linea); border-radius: var(--raggio); overflow: hidden; display: grid; }
.carta.bloccata { border-color: var(--male); }
.carta .anteprima { position: relative; aspect-ratio: 16 / 10; background: #fff; overflow: hidden; cursor: zoom-in; }
.carta .anteprima iframe { position: absolute; top: 0; left: 0; width: 400%; height: 400%; transform: scale(.25); transform-origin: 0 0; border: 0; pointer-events: none; }
.carta .anteprima .vuoto { background: var(--pannello-2); }
.carta .info { padding: 8px 10px; display: grid; gap: 6px; font-size: 13px; }
.carta .info b { font-size: 15px; }
.carta .info .riga { display: flex; gap: 6px; align-items: center; }
.carta .info .riga .spazio { flex: 1; }
.carta .info button { padding: 4px 8px; font-size: 12px; }
.grande { position: fixed; inset: 0; background: var(--fondo); z-index: 20; display: grid; grid-template-rows: auto 1fr; }
.grande .barra { justify-content: space-between; }
.grande iframe { width: 100%; height: 100%; border: 0; background: #fff; }
.confronto { display: grid; gap: 12px; }
.confronto .colonne { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; }
.confronto .colonna { background: var(--pannello); border: 1px solid var(--linea); border-radius: var(--raggio); overflow: hidden; display: grid; grid-template-rows: auto 420px auto; }
.confronto .colonna header { padding: 8px 12px; display: flex; justify-content: space-between; color: var(--tenue); font-size: 13px; }
.confronto .colonna header b { color: var(--testo); }
.confronto .colonna iframe { width: 100%; height: 100%; border: 0; background: #fff; }
.confronto .colonna footer { padding: 8px 12px; font-size: 13px; color: var(--tenue); max-height: 90px; overflow: auto; }

@media (max-width: 860px) {
  .corpo { grid-template-columns: 1fr; grid-template-rows: auto 60vh; }
  .chat { border-right: 0; border-bottom: 1px solid var(--linea); }
}