/* Tema «Ologramma» (prova B scelta da Luca il 25/10) per l'area docente.
   Contrasti misurati sul pannello #081426: testo 17 · secondario 8,9 · etichette 6,4 · ciano 11,5 · arancio 9,7 · verde 11,9.
   Bagliori e animazioni solo su bordi, barre e anello; mai sul testo; tutto fermo con «riduci movimento».
   Le slide restano su fondo bianco. */
:root {
  --fondo: #03070f; --pannello: #081426; --pannello2: #0b1b33;
  --testo: #eaf6ff; --sec: #a3bdd6; --eti: #86a3c2;
  --acc: #5ee0ff; --acc-testo: #03070f;
  --avviso: #ff9a3d; --ok: #52eab0;
  --linea: #1b3d63; --bordo: #3a78b0; --traccia: #0f2742; --fuoco: #ff9a3d;
  --pulsante-sopra: rgba(94, 224, 255, .10); --campo-fondo: #050d1a;
  --avviso-fondo: #0b1b33; --avviso-testo: #eaf6ff; --evidenza: rgba(255, 154, 61, .45);
  --raggio: 0px; --banda: 0px;
  --es-fondo: rgba(255,255,255,.02); --es-fondo-docente: rgba(255,154,61,.06);
  --fondo-slide-area: transparent; --fondo-intero: #000; --ombra-slide: 0 0 0 1px #24588c, 0 0 28px rgba(94,224,255,.18);
  color-scheme: dark;
}
body {
  background:
    radial-gradient(900px 500px at 50% 30%, rgba(46,140,220,.18), transparent 70%),
    linear-gradient(rgba(94,224,255,.05) 1px, transparent 1px) 0 0/40px 40px,
    linear-gradient(90deg, rgba(94,224,255,.05) 1px, transparent 1px) 0 0/40px 40px, var(--fondo);
  background-attachment: fixed;
}

/* intestazione */
.cabina-testa { position: relative; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 12px 24px; border-bottom: 1px solid #1b3d63; box-shadow: 0 1px 0 rgba(94,224,255,.15); }
.cabina-testa h1 { font-size: 18px; letter-spacing: .14em; text-transform: uppercase; margin: 0; color: var(--acc); font-weight: 600; }
.cabina-testa .spazio { flex: 1; }
.cabina-testa .chi { color: var(--sec); font-size: 14px; }
.cabina-testa::after, .visore-testa::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; pointer-events: none;
  background: linear-gradient(90deg, transparent 0 45%, var(--acc) 50%, transparent 55% 100%) 0 0/300% 100% no-repeat;
}
.visore-testa { position: relative; border-bottom: 1px solid #1b3d63; }
.visore-testa h1 { color: var(--testo); }

/* pannelli ad angoli tagliati */
.p { position: relative; background: linear-gradient(180deg, var(--pannello2), var(--pannello)); border: 1px solid #24588c; padding: 18px 20px;
     clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
     box-shadow: inset 0 0 0 1px rgba(94,224,255,.08), inset 0 0 40px rgba(94,224,255,.06); }
.p::before { content: ""; position: absolute; left: 16px; right: 40%; top: 0; height: 2px; background: linear-gradient(90deg, var(--acc), transparent); box-shadow: 0 0 12px var(--acc); pointer-events: none; }
.p::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; pointer-events: none;
            background: linear-gradient(90deg, transparent 0 40%, var(--acc) 50%, transparent 60% 100%) 0 0/250% 100% no-repeat; opacity: .7; }
.p > h2 { margin: 0 0 12px; font-size: 14px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--eti); }

.cabina { display: grid; gap: 18px; padding: 22px 24px 40px; grid-template-columns: repeat(12, 1fr); max-width: 1400px; margin: 0 auto; }
.cabina .largo { grid-column: span 8; } .cabina .stretto { grid-column: span 4; } .cabina .intero { grid-column: span 12; }
.cabina .meta { grid-column: span 6; }
@media (max-width: 1000px) { .cabina .largo, .cabina .stretto, .cabina .meta { grid-column: span 12; } }
@media (max-width: 600px) { .cabina { padding: 14px 12px 30px; } }

.classi { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.classe { border: 1px solid var(--linea); padding: 14px; background: rgba(255,255,255,.02); display: flex; flex-direction: column; gap: 8px; }
.classe[aria-current="true"] { border-color: var(--acc); }
.classe b { font-size: 22px; }
.classe .dove { color: var(--sec); font-size: 14px; min-height: 2.6em; }
.classe .comandi { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.stato { display: inline-block; font-size: 14px; padding: 2px 8px; border-radius: 10px; margin-left: 6px; font-weight: 600; vertical-align: middle; }
.stato.ok { color: var(--ok); border: 1px solid var(--ok); } .stato.ritardo { color: var(--avviso); border: 1px solid var(--avviso); }
.stato.fermo { color: var(--sec); border: 1px solid var(--bordo); }

.barra { position: relative; height: 8px; background: var(--traccia); border-radius: 4px; overflow: hidden; }
.barra i { position: relative; overflow: hidden; display: block; height: 100%; background: var(--acc); box-shadow: 0 0 10px var(--acc); }
.barra i::after { content: ""; position: absolute; top: 0; bottom: 0; width: 40px; left: -40px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.75), transparent); }

.anello { width: 140px; height: 140px; border-radius: 50%; display: grid; place-items: center; margin: 14px auto 12px; position: relative;
          background: conic-gradient(var(--acc) 0 var(--quota, 0%), var(--traccia) var(--quota, 0%) 100%);
          box-shadow: 0 0 0 8px var(--pannello), 0 0 0 9px #24588c, 0 0 30px rgba(94,224,255,.35); }
.anello span { width: 110px; height: 110px; border-radius: 50%; background: var(--pannello); display: grid; place-items: center; font-size: 26px; font-weight: 600; }
.anello::after { content: ""; position: absolute; inset: -18px; border-radius: 50%; border: 1px dashed rgba(94,224,255,.45); pointer-events: none; }

/* programma: elenco lezioni con «arrivati qui» */
.programma-scelta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.programma { list-style: none; margin: 0; padding: 0; }
.programma > li { border-top: 1px solid var(--linea); padding: 10px 0; }
.programma .u-titolo { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; font-weight: 600; font-size: 17px; }
.programma .u-titolo .eti { font-size: 14px; }
.programma ol { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 4px; }
.programma ol li { display: flex; gap: 10px; align-items: center; padding: 4px 6px; border-left: 3px solid transparent; }
.programma ol li.svolta { border-left-color: var(--ok); }
.programma ol li.qui { border-left-color: var(--acc); background: rgba(94,224,255,.07); }
.programma ol li .num { color: var(--acc); min-width: 3.6em; font-weight: 600; }
.programma ol li .t { flex: 1; min-width: 0; }
.programma ol li .segno { font-size: 15px; color: var(--ok); font-weight: 600; min-width: 4.5em; }
.programma ol li.qui .segno { color: var(--acc); }
.programma ol li a { color: var(--testo); text-decoration: none; }
.programma ol li a:hover { text-decoration: underline; color: var(--acc); }

/* aula: codice */
.codice-aula { font-size: 44px; letter-spacing: .2em; color: var(--testo); font-weight: 600; }
.indirizzo-aula { font-size: 18px; word-break: break-all; color: var(--testo); }
dialog.dialogo { width: min(620px, 94vw); padding: 22px 24px; }
dialog.dialogo h2 { margin-top: 0; font-size: 20px; color: var(--acc); }
dialog.dialogo .comandi { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.riga-campi { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.riga-campi label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--sec); }

@media (prefers-reduced-motion: no-preference) {
  .barra i::after { animation: scorri 4.5s ease-in-out infinite; }
  .classe:nth-child(3n+2) .barra i::after { animation-delay: 1.5s; }
  .classe:nth-child(3n+3) .barra i::after { animation-delay: 3s; }
  .p::after { animation: bordo 9s linear infinite; }
  .p:nth-of-type(2)::after { animation-delay: -3s; } .p:nth-of-type(3)::after { animation-delay: -6s; }
  .cabina-testa::after, .visore-testa::after { animation: bordo 12s linear infinite; }
  .anello::after { animation: gira 18s linear infinite; }
}
@keyframes scorri { 0% { left: -40px; } 60%, 100% { left: 100%; } }
@keyframes bordo { from { background-position: 100% 0; } to { background-position: 0 0; } }
@keyframes gira { to { transform: rotate(360deg); } }

/* Le mie classi */
.nuova-classe, .modulo-classe { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.nuova-classe label, .modulo-classe label { display: flex; flex-direction: column; gap: 4px; color: var(--sec); font-size: 14px; }
.modulo-classe label { flex: 1 1 100%; }
.modulo-classe textarea { width: 100%; }
.tabella-classi { width: 100%; border-collapse: collapse; font-size: 15px; }
.tabella-classi th { color: var(--eti); font-weight: 600; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; text-align: left; }
.tabella-classi td, .tabella-classi th { padding: 8px 6px; border-bottom: 1px solid var(--linea); vertical-align: middle; }
.tabella-classi .azioni { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.elenco-mail { list-style: none; padding: 0; margin: 12px 0 0; max-height: 40vh; overflow: auto; }
.elenco-mail li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--linea); }
@media (max-width: 700px) { .tabella-classi thead { display: none; } .tabella-classi tr { display: grid; grid-template-columns: 1fr 1fr; padding: 8px 0; border-bottom: 1px solid var(--linea); }
  .tabella-classi td { border: 0; } .tabella-classi .azioni { grid-column: 1 / -1; justify-content: flex-start; } }

/* Tutte le unità · sezioni da popolare */
.tutte-unita { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.tutte-unita .gruppo-anno { grid-column: 1 / -1; margin: 6px 0 0; color: var(--eti); font-size: 14px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.scheda-unita { display: block; border: 1px solid var(--linea); padding: 12px 14px; color: var(--testo); text-decoration: none; background: rgba(255,255,255,.02); }
.scheda-unita:hover, .scheda-unita:focus-visible { border-color: var(--bordo); background: rgba(94,224,255,.06); }
.scheda-unita .eti { display: block; color: var(--acc); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; }
.scheda-unita b { display: block; margin: 2px 0 6px; font-size: 16px; }
.vuoto { border: 1px dashed var(--bordo); padding: 14px 16px; }
.vuoto p { margin: 0 0 6px; }

/* Riquadro classe cliccabile: proposta → «Conferma» → classe attiva */
.classe[data-classe] { cursor: pointer; transition: border-color .2s, background .2s; }
.classe[data-classe]:hover { border-color: var(--bordo); background: rgba(94,224,255,.05); }
.classe[data-classe]:focus-visible { outline: 3px solid var(--avviso); outline-offset: 2px; }
.classe[aria-current="true"] { cursor: default; border-color: var(--acc); box-shadow: inset 0 0 0 1px var(--acc), 0 0 18px rgba(94,224,255,.18); }
.classe.proposta { border-color: var(--avviso); border-style: dashed; background: rgba(255,154,61,.05); }
.stato.attiva { color: var(--acc); border: 1px solid var(--acc); }
.conferma-classe { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding-top: 10px; border-top: 1px dashed var(--avviso); }
.conferma-classe span { flex: 1 1 100%; color: var(--testo); font-size: 15px; }

/* esercitazioni nella cabina */
.es-contatori { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.es-contatore { border: 1px solid var(--linea); padding: 8px 14px; min-width: 120px; background: rgba(255,255,255,.02); }
.es-contatore b { display: block; font-size: 24px; font-family: ui-monospace, "SF Mono", Menlo, monospace; color: var(--testo); }
.es-contatore span { font-size: 14px; color: var(--sec); }
.es-contatore.attivo { border-color: var(--acc); }
button.es-contatore { font: inherit; text-align: left; cursor: pointer; color: inherit; border-color: var(--bordo); min-height: 44px; }
button.es-contatore:hover { border-color: var(--acc); background: var(--pulsante-sopra); }
.es-filtri { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin-bottom: 8px; }
.es-filtri label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--sec); }
.es-filtri select, .es-filtri input { min-width: 140px; }
#es-altre { margin-top: 12px; }
/* contatore esercizi accanto a ogni lezione del programma */
.programma ol li { flex-wrap: wrap; }
.programma .es-conta { min-width: 9.5em; }
.programma .es-conta[aria-expanded="true"] { color: var(--acc-testo); background: var(--acc); border-color: var(--acc); }
.programma .es-aperte { flex-basis: 100%; display: grid; gap: 8px; padding: 6px 0 8px 3.6em; }
.programma ol li.qui { border-left-width: 5px; background: rgba(94,224,255,.12); box-shadow: inset 0 0 0 1px rgba(94,224,255,.35); }
@media (max-width: 700px) { .programma .es-aperte { padding-left: 0; } }
/* riquadro «Esercizi da proporre qui» nel visore del docente */
.es-qui { margin-top: 16px; border-top: 1px solid var(--linea); padding-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.es-qui h2 { margin: 0; }

/* compiti in classe */
.sotto-titolo { margin: 22px 0 10px; font-size: 16px; color: var(--acc); letter-spacing: .06em; text-transform: uppercase; }
.compiti-scelta { margin-bottom: 10px; }
.tabella-scorre { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tabella-compiti { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
.tabella-compiti th { color: var(--eti); font-weight: 600; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; text-align: left; }
.tabella-compiti td, .tabella-compiti th { padding: 8px 6px; border-bottom: 1px solid var(--linea); vertical-align: top; }
.riepilogo-compiti { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 12px; }
.riepilogo-classe { border: 1px solid var(--linea); padding: 12px 14px; background: rgba(255,255,255,.02); }
.riepilogo-testa { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.riepilogo-testa b { font-size: 20px; margin-right: 4px; }
.riepilogo-testa .sec { flex: 1; min-width: 8em; }
.riepilogo-classe ol { margin: 10px 0 0; padding-left: 20px; font-size: 15px; }
.riepilogo-classe li { margin: 0 0 4px; }
/* «I miei compiti»: ben visibile */
.miei-compiti { margin: 0 0 14px; font-size: 16px; min-height: 48px; padding: 10px 18px; border-width: 2px; border-color: var(--acc); }
.miei-compiti[aria-pressed="true"], .miei-compiti[aria-expanded="true"] { color: var(--acc-testo); background: var(--acc); }
.spunta { flex-direction: row !important; align-items: center; gap: 8px !important; min-height: 44px; color: var(--testo) !important; font-size: 15px !important; }
.spunta input { width: 22px; height: 22px; min-height: 0; accent-color: var(--acc); }
.riepilogo-classe h4 { margin: 12px 0 4px; font-size: 15px; color: var(--acc); }
.riepilogo-classe h4 + ol { margin-top: 4px; }
.riepilogo-classe p.sec { margin: 0; }
.tabella-compiti tr.ritirata td { color: var(--sec); }

/* sezioni della cabina: riducibili e spostabili */
.sez-testa { display: flex; align-items: center; gap: 8px; margin: -4px 0 12px; }
.p.ridotta .sez-testa { margin-bottom: -4px; }
.sez-testa h2 { flex: 1; min-width: 0; margin: 0; font-size: 14px; }
.sez-apri { display: flex; align-items: center; gap: 8px; width: 100%; min-height: 44px; padding: 4px 6px; text-align: left; cursor: pointer;
  background: transparent; border: 1px solid transparent; color: var(--eti); font-weight: 600; font-size: 14px; line-height: 1.3; font-family: inherit; letter-spacing: .12em; text-transform: uppercase; }
.sez-apri:hover { border-color: var(--bordo); }
.sez-freccia { color: var(--acc); font-size: 16px; width: 1em; letter-spacing: 0; }
.sez-nome { color: var(--eti); }
.sez-riassunto { color: var(--sec); letter-spacing: 0; text-transform: none; font-weight: 400; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.p:not(.ridotta) .sez-riassunto { display: none; }
.sez-sposta { display: flex; gap: 6px; flex: none; }
.sez-maniglia { display: none; cursor: grab; color: var(--sec); font-size: 18px; letter-spacing: -2px; padding: 8px 6px; user-select: none; -webkit-user-select: none; }
@media (pointer: fine) { .sez-maniglia { display: inline-block; } }
.p.in-trascinamento { opacity: .5; }
.p.sopra-trascina { outline: 2px dashed var(--acc); outline-offset: 4px; }
.cabina .p.ridotta { grid-column: span 12; padding-top: 12px; padding-bottom: 12px; }
@media (max-width: 600px) { .sez-sposta .pulsante { padding: 6px 8px; } }
.azioni-riga { white-space: nowrap; } .azioni-riga .pulsante { margin: 2px 0; }

/* Programma e avanzamento su una riga sola (28/10/2026): sigla · titolo · esercizi · stato (che è anche «arrivati qui») */
.programma .u-titolo { color: var(--testo); text-decoration: none; padding: 4px 6px; margin: 0 -6px; }
.programma .u-titolo:hover, .programma .u-titolo:focus-visible { color: var(--acc); background: rgba(94,224,255,.06); }
.programma .u-titolo .u-vai { margin-left: auto; color: var(--acc); font-size: 13px; opacity: .7; }
.programma ol li { display: grid; grid-template-columns: 3.4em minmax(0, 1fr) 5.2em 7.2em; gap: 4px 10px; align-items: center; flex-wrap: nowrap; min-height: 44px; }
.programma ol li .num { min-width: 0; }
.programma ol li .t { line-height: 1.3; }
.programma .es-conta { min-width: 0; width: 100%; padding-left: 4px; padding-right: 4px; }
.programma .stato-lez { width: 100%; padding-left: 4px; padding-right: 4px; white-space: nowrap; color: var(--sec); border-color: var(--linea); }
.programma ol li.svolta .stato-lez { color: var(--ok); border-color: rgba(82,234,176,.35); background: transparent; }
.programma ol li.qui .stato-lez, .programma ol li.qui .stato-lez:disabled { color: var(--acc-testo); background: var(--acc); border-color: var(--acc); opacity: 1; }
.programma ol li .stato-lez:not(:disabled):hover { color: var(--acc); border-color: var(--acc); }
.programma .es-aperte { grid-column: 1 / -1; }