/* Pagine dell'app. Stessa palette e stessi caratteri della home (white-mint-tiles, Instrument Sans + DM Mono). */
:root{
  --bg:#ffffff;--surface:#f4f4f2;--card:#ffffff;--ink:#232323;--muted:#686868;
  --line:rgba(35,35,35,.13);--line-strong:rgba(35,35,35,.24);
  --accent:#a1ffcb;--accent-ink:#0f3d26;--segno-piega:#13a263;--action:#232323;--action-ink:#ffffff;
  --ok:#17784a;--warn:#9a5b00;--err:#b3261e;--err-bg:#fdecea;--ok-bg:#e3f7ec;--wait-bg:#eef6f1;
  --font:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"DM Mono",ui-monospace,Consolas,monospace;
  --r-sm:8px;--r-md:12px;--r-lg:20px;--nav:64px;--wrap:1120px;--gut:24px;
  --shadow:0 1px 2px rgba(35,35,35,.05),0 8px 24px -12px rgba(35,35,35,.12);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#1b1b1b;--surface:#232323;--card:#262626;--ink:#f2f2f0;--muted:#a4a4a4;
  --line:rgba(255,255,255,.12);--line-strong:rgba(255,255,255,.24);
  --accent:#a1ffcb;--accent-ink:#0f3d26;--segno-piega:#a1ffcb;--action:#a1ffcb;--action-ink:#152a1e;
  --ok:#7fe0ad;--warn:#f0b45a;--err:#ff8f86;--err-bg:#3a1f1d;--ok-bg:#1d3326;--wait-bg:#1f2a24;
  --shadow:none;color-scheme:dark}}
:root[data-theme="dark"]{
  --segno-piega:#a1ffcb;--bg:#1b1b1b;--surface:#232323;--card:#262626;--ink:#f2f2f0;--muted:#a4a4a4;
  --line:rgba(255,255,255,.12);--line-strong:rgba(255,255,255,.24);
  --action:#a1ffcb;--action-ink:#152a1e;--ok:#7fe0ad;--warn:#f0b45a;--err:#ff8f86;
  --err-bg:#3a1f1d;--ok-bg:#1d3326;--wait-bg:#1f2a24;--shadow:none;color-scheme:dark}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--surface);color:var(--ink);font:400 16px/1.55 var(--font);-webkit-font-smoothing:antialiased;
  min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration-color:var(--line-strong);text-underline-offset:3px;transition:text-decoration-color .15s}
a:hover{text-decoration-color:currentColor}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:30;background:var(--card);padding:8px 12px}
.wrap{width:min(100% - 2*var(--gut),var(--wrap));margin:0 auto}

/* barra in alto */
.top{position:sticky;top:0;z-index:20;height:var(--nav);background:var(--bg);border-bottom:1px solid var(--line)}
.top .wrap{height:100%;display:flex;align-items:center;gap:16px}
.marchio{display:flex;align-items:center;gap:10px;font-weight:600;font-size:18px;letter-spacing:-.02em;
  text-decoration:none;margin-right:auto}
.marchio .mark--segno{width:auto;height:26px;flex:none;color:var(--ink)}
.utente{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--muted)}
.utente .avatar{width:32px;height:32px;border-radius:50%;background:var(--surface);border:1px solid var(--line);
  display:grid;place-items:center;font-weight:600;color:var(--ink);font-size:13px}
.top form{margin:0}

main{flex:1;width:min(100% - 2*var(--gut),var(--wrap));margin:0 auto;padding:40px 0 96px}
.piede{border-top:1px solid var(--line);background:var(--bg);font-size:13px;color:var(--muted)}
.piede .wrap{padding:20px 0;display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}

/* tipografia */
h1,h2,h3{font-weight:500;letter-spacing:-.025em;line-height:1.15;margin:0}
h1{font-size:clamp(28px,2.2vw + 14px,40px);letter-spacing:-.032em}
h2{font-size:22px;margin:48px 0 16px}
h3{font-size:17px;letter-spacing:-.01em}
p{margin:0 0 12px}
.muted{color:var(--muted)}.small{font-size:14px}.mono{font-family:var(--mono);font-size:13px}
.err{color:var(--err)}.ok{color:var(--ok)}

.briciole{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--muted);margin-bottom:12px}
.briciole a{text-decoration:none}.briciole a:hover{color:var(--ink)}
.briciole span[aria-hidden]{opacity:.6}
.testa{display:flex;align-items:flex-end;justify-content:space-between;gap:16px 24px;flex-wrap:wrap;margin-bottom:32px}
.testa .sotto{margin:8px 0 0;color:var(--muted)}

/* superfici */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow)}
.card + .card{margin-top:16px}
.card h2:first-child,.card h3:first-child{margin-top:0}
.card-testa{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.card-testa h2{margin:0}
.griglia{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.colonne{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px;align-items:start}
@media (min-width:901px){.solo-telefono{display:none}}
@media (min-width:901px){.fisso{position:sticky;top:calc(var(--nav) + 24px)}}
@media (max-width:900px){.colonne{grid-template-columns:1fr}}

.tile{position:relative;display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px;text-decoration:none;min-height:132px;box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease}
.tile:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.tile b{font-size:18px;font-weight:500;letter-spacing:-.015em}
.tile .meta{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:14px;color:var(--muted)}
.tile .freccia{position:absolute;right:20px;top:20px;color:var(--muted);transition:transform .18s}
.tile:hover .freccia{transform:translateX(3px);color:var(--ink)}
.tile.nuova{border-style:dashed;background:transparent;box-shadow:none;justify-content:center;align-items:flex-start}

/* pulsanti */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;
  border-radius:var(--r-sm);border:1px solid var(--action);background:var(--action);color:var(--action-ink);
  font:500 15px/1 var(--font);text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform .12s ease,background-color .15s,opacity .15s}
.btn:hover{opacity:.88}
.btn:active{transform:translateY(1px) scale(.99)}
.btn.sec{background:var(--card);color:var(--ink);border-color:var(--line-strong)}
.btn.sec:hover{opacity:1;border-color:var(--ink)}
.btn.piccolo{min-height:34px;padding:0 12px;font-size:14px}
.btn.pieno{width:100%}
.btn:disabled{opacity:.45;cursor:default;transform:none}
.btn svg{width:16px;height:16px;flex:none}
.riga{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* moduli */
label{display:block;font-weight:500;font-size:14px;margin:18px 0 6px}
input[type=text],input[type=email],input[type=date],input[type=number],select,textarea{width:100%;max-width:520px;
  font:400 16px var(--font);min-height:44px;padding:9px 12px;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  background:var(--card);color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(161,255,203,.55)}
.hint{font-size:14px;color:var(--muted);margin-top:6px;max-width:560px}
.modulo-azioni{margin-top:24px}
/* scelta classe / gruppo studio */
.scelta-tipo{border:0;padding:0;margin:20px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:520px}
.scelta-tipo legend{font-weight:500;font-size:14px;margin-bottom:6px;padding:0}
.scelta-tipo label{margin:0;display:flex;gap:10px;align-items:flex-start;padding:12px 14px;cursor:pointer;
  border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--card);transition:border-color .15s,box-shadow .15s}
.scelta-tipo label>span{display:grid;gap:2px}
.scelta-tipo input{margin:4px 0 0;accent-color:var(--ink)}
.scelta-tipo label:has(input:checked){border-color:var(--ink);box-shadow:0 0 0 3px rgba(161,255,203,.55)}
@media (max-width:480px){.scelta-tipo{grid-template-columns:1fr}}
[data-solo][hidden]{display:none!important}

.zona{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;
  border:1.5px dashed var(--line-strong);border-radius:var(--r-md);padding:28px 16px;background:var(--surface);
  cursor:pointer;transition:border-color .15s,background-color .15s;margin:0}
.zona:hover,.zona.sopra{border-color:var(--ink);background:var(--wait-bg)}
.zona input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.zona .icona{width:40px;height:40px;border-radius:12px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center}
.zona b{font-weight:500;font-size:16px}
.zona span{font-size:14px;color:var(--muted);font-weight:400}
.scelti{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:6px}
.scelti li{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:8px 12px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:var(--card)}
.scelti li span{color:var(--muted);white-space:nowrap}

/* stati delle lezioni */
.stato{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;padding:3px 10px;border-radius:999px;
  background:var(--wait-bg);color:var(--ink);white-space:nowrap}
.stato::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--muted)}
.stato.in_trascrizione::before,.stato.in_sbobina::before,.stato.caricata::before,.stato.trascritta::before{
  background:#2fbf74;animation:pulsa 1.6s ease-in-out infinite}
.stato.pronta{background:var(--ok-bg);color:var(--ok)}.stato.pronta::before{background:var(--ok)}
.stato.errore,.stato.bloccata{background:var(--err-bg);color:var(--err)}.stato.errore::before,.stato.bloccata::before{background:var(--err)}
@keyframes pulsa{50%{opacity:.25}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* tabelle ed elenchi */
.tabella{width:100%;border-collapse:collapse}
.tabella td,.tabella th{text-align:left;padding:14px 12px;border-bottom:1px solid var(--line);vertical-align:top;font-size:15px}
.tabella th{font-size:13px;color:var(--muted);font-weight:500;padding-top:0}
.tabella tr:last-child td{border-bottom:0}
.tabella td:first-child,.tabella th:first-child{padding-left:0}.tabella td:last-child,.tabella th:last-child{padding-right:0}
@media (max-width:640px){
  .tabella.impila tr{display:grid;gap:6px;padding:14px 0;border-bottom:1px solid var(--line)}
  .tabella.impila tr:first-child{display:none}.tabella.impila td{border:0;padding:0}}

.indice{list-style:none;margin:0;padding:0;counter-reset:lez}
.indice li{counter-increment:lez;border-top:1px solid var(--line)}
.indice li:first-child{border-top:0}
.indice a{display:grid;grid-template-columns:36px 1fr auto;align-items:baseline;gap:8px;padding:14px 0;text-decoration:none}
.indice a::before{content:counter(lez,decimal-leading-zero);font:400 13px var(--mono);color:var(--muted)}
.indice a::after{content:"→";color:var(--muted);transition:transform .18s}
.indice a:hover::after{transform:translateX(3px);color:var(--ink)}
.indice a:hover{color:var(--ink)}
.vuoto{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:8px 0;color:var(--muted)}

.persona{display:flex;gap:12px;align-items:center}
.persona .avatar{width:36px;height:36px;border-radius:50%;background:var(--surface);border:1px solid var(--line);
  display:grid;place-items:center;font-weight:600;font-size:14px;flex:none}

/* ore del mese */
.barra{height:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;overflow:hidden;max-width:520px}
.barra>span{display:block;height:100%;background:var(--ink);width:0;border-radius:999px;transition:width .3s}
.ore{display:flex;align-items:baseline;gap:8px;margin-bottom:12px}
.ore b{font-size:32px;font-weight:500;letter-spacing:-.03em}

.copia{display:flex;gap:8px;align-items:stretch;flex-wrap:wrap}
.copia code{flex:1;min-width:0;font:400 13px/1.4 var(--mono);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:11px 12px;word-break:break-all}

details>summary{cursor:pointer;font-weight:500;list-style:none;display:flex;align-items:center;gap:8px}
details>summary::-webkit-details-marker{display:none}
details>summary::before{content:"+";font:400 18px/1 var(--mono);width:16px;color:var(--muted)}
details[open]>summary::before{content:"−"}
.aggiornamento{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}

.avviso{border-radius:var(--r-md);padding:12px 16px;background:var(--err-bg);color:var(--err);font-size:14px}
.avviso.info{background:var(--wait-bg);color:var(--ink)}

/* lettura della lezione */
.lettura{display:grid;grid-template-columns:minmax(0,1fr);justify-items:center}
.lettura .card{width:100%;max-width:820px;padding:clamp(24px,5vw,56px)}
.testo{font-size:18px;line-height:1.72;max-width:68ch;margin:0 auto}
.testo h1,.testo h2{font-size:26px;margin:40px 0 12px}
.testo h3{font-size:20px;margin:32px 0 8px}
.testo h4{font-size:17px;margin:24px 0 6px;font-weight:600}
.testo p{margin:0 0 16px}
.testo ul,.testo ol{padding-left:22px;margin:0 0 16px}.testo li{margin:4px 0}
.testo strong{font-weight:600}
.testo table{font-size:15px;border-collapse:collapse;width:100%;margin:16px 0;display:block;overflow-x:auto}
.testo td,.testo th{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.testo th{background:var(--surface);font-weight:500}
.piede nav{display:flex;gap:16px}
figure{margin:28px 0;text-align:center}
figure img{max-width:100%;height:auto;border-radius:var(--r-md);border:1px solid var(--line);background:#fff}
figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.naviga{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;max-width:820px;width:100%;margin:24px auto 0}

/* pagine semplici (accesso di prova, errori, attesa) */
.centrata{max-width:520px;margin:48px auto 0}
.centrata .card{padding:32px}
.centrata h1{font-size:30px;margin-bottom:12px}

@media (max-width:640px){
  main{padding:24px 0 72px}
  .card{padding:18px;border-radius:var(--r-md)}
  .utente .email{display:none}
  h2{margin-top:36px}
  .testa .btn,.modulo-azioni .btn{width:100%}
}