/* ═══════════════════════════════════════════════════════════════
   Transcribe Studio — stile globale
   Fondo scuro sobrio, testi su "fogli" chiari, onda sonora come segno.
   ═══════════════════════════════════════════════════════════════ */
:root{
  --bg:#0b0e13;
  --surface:#12161e;
  --surface-2:#181d27;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.13);
  --text:#e8ecf3;
  --muted:#9aa4b6;
  --accent:#5eead4;
  --accent-2:#60a5fa;
  --on-accent:#06201c;
  --danger:#f87171;
  --ok:#86efac;
  --warn:#fbbf24;
  --radius:14px;
  --serif:"Instrument Serif","Times New Roman",Georgia,serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  /* alias usati da pagine esistenti */
  --panel:var(--surface);
  --stroke:var(--line);
  --accent-300:var(--accent); --accent-500:var(--accent);
  --accent-700:color-mix(in oklab,var(--accent),transparent 84%);
  --border-600:var(--line-2); --border-700:var(--line); --border-800:var(--line);
  --bg-800:var(--surface-2);
  --success-400:var(--ok); --warning-400:var(--warn); --error-400:var(--danger);
}
html[data-theme="sunset"]{ --accent:#f5b544; --accent-2:#fb7185; --on-accent:#2a1703; }
html[data-theme="ocean"] { --accent:#38d4f0; --accent-2:#60a5fa; --on-accent:#031d24; }
html[data-theme="forest"]{ --accent:#4ade80; --accent-2:#a3e635; --on-accent:#05210f; }

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);font-size:15px;line-height:1.5;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;
  background-image:radial-gradient(1200px 420px at 50% -180px,color-mix(in oklab,var(--accent),transparent 90%),transparent 70%);background-repeat:no-repeat}
main{flex:1}
a{color:var(--accent)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:28px;font-weight:650;letter-spacing:-.01em}
h2{font-size:20px;font-weight:600}
h3{font-size:16px;font-weight:600}
p{margin:0 0 1em}
code,kbd{font:13px ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:1px 5px}
::selection{background:color-mix(in oklab,var(--accent),transparent 65%)}
.container{width:100%;max-width:1120px;margin:0 auto;padding:28px 24px 40px}
.muted{color:var(--muted)}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ─── intestazione ─── */
.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;padding:0 24px;height:60px;
  background:color-mix(in oklab,var(--bg),transparent 12%);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:650;font-size:15.5px;white-space:nowrap}
.brand-mark{width:28px;height:28px;fill:none;stroke-linecap:round}
.brand-mark rect{fill:color-mix(in oklab,var(--accent),transparent 86%);stroke:color-mix(in oklab,var(--accent),transparent 55%)}
.brand-mark path{stroke:var(--accent);stroke-width:2.2}
.nav{display:flex;gap:4px;flex:1}
.nav a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500;padding:7px 11px;border-radius:9px}
.nav a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav a[aria-current="page"]{color:var(--text);background:rgba(255,255,255,.06)}
.header-tools{display:flex;align-items:center;gap:8px}
.ai-badge{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--muted);white-space:nowrap}
.ai-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--muted)}
.ai-badge.on::before{background:var(--ok)}
.ai-badge.off::before{background:var(--danger)}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;padding:0;border-radius:10px;border:1px solid transparent;background:transparent;color:var(--muted);cursor:pointer}
.icon-btn:hover{background:rgba(255,255,255,.05);color:var(--text)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8}
.icon-btn svg .fill{fill:var(--accent);stroke:none}
@media (max-width:760px){
  .site-header{gap:10px;padding:0 12px;height:auto;min-height:56px;flex-wrap:wrap}
  .brand span{display:none}
  .nav{order:3;flex-basis:100%;overflow-x:auto;padding-bottom:8px;margin-top:-4px}
  .nav a{padding:6px 10px;font-size:14px}
  .header-tools{margin-left:auto}
  .container{padding:20px 14px 32px}
}
.site-footer{text-align:center;padding:20px;color:var(--muted);font-size:12.5px;opacity:.8}

/* ─── controlli di base (valgono per tutte le pagine) ─── */
button,select,input,textarea{font:inherit;color:inherit}
:where(button){display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:0 14px;border-radius:10px;border:1px solid var(--line-2);
  background:var(--surface-2);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:border-color .15s,background .15s,transform .1s}
:where(button:hover:not(:disabled)){border-color:color-mix(in oklab,var(--accent),transparent 45%)}
:where(button:active:not(:disabled)){transform:translateY(1px)}
:where(button:disabled){opacity:.45;cursor:not-allowed}
:where(button) :where(svg){width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
:where(input[type="text"],input[type="email"],input[type="password"],input[type="number"],input:not([type]),select,textarea,.input){
  width:100%;background:var(--surface-2);color:var(--text);border:1px solid var(--line-2);border-radius:10px;padding:10px 12px;font-size:15px;outline:none;
  transition:border-color .15s,box-shadow .15s}
:where(input:focus-visible,select:focus-visible,textarea:focus-visible,.input:focus-visible){border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklab,var(--accent),transparent 82%);outline:none}
input::placeholder,textarea::placeholder{color:color-mix(in oklab,var(--muted),transparent 30%)}
:where(select){appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:34px;color-scheme:dark;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239aa4b6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:14px}
select option{background:#151a23;color:var(--text)}
:where(textarea){resize:vertical;min-height:96px;line-height:1.5}
:where(input[type="checkbox"],input[type="radio"]){accent-color:var(--accent);width:17px;height:17px;margin:0}
input[type="file"]{font-size:14px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 16px;border-radius:11px;position:relative;border:1px solid var(--line-2);font-size:14px;font-weight:500;text-decoration:none;cursor:pointer;color:var(--text)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);font-weight:650}
.btn-primary:hover:not(:disabled){filter:brightness(1.07);border-color:var(--accent)}
.btn-primary .btn-glow{display:none}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover:not(:disabled){background:rgba(255,255,255,.04)}
.btn-sm{min-height:36px;padding:0 12px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}
.chip{min-height:32px;padding:0 12px;border-radius:999px;font-size:13px;background:transparent;border:1px solid var(--line-2);color:var(--text);text-decoration:none;display:inline-flex;align-items:center}
.badge{padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.06);color:var(--muted);font-size:12px}

/* ─── pannelli e moduli (usati da Carica audio, Riduci peso, Quiz) ─── */
.glass{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.panel{padding:22px 24px;margin-bottom:18px}
.panel > h1{font-size:24px}
.panel-title{margin:0 0 16px;font-size:20px}
.page-quiz .title{font-size:28px}
.form-grid{display:grid;gap:18px;grid-template-columns:1fr}
.stack,.field{display:flex;flex-direction:column;gap:7px}
.label,.stack > span{font-size:13.5px;font-weight:550;color:var(--text)}
.label .opt{color:var(--muted);font-weight:400}
.hint{color:var(--muted);font-size:12.5px;line-height:1.45}
.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.inline{display:inline-flex;align-items:center;gap:9px;font-size:14px;cursor:pointer}
.controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.controls .num,.num{width:64px;padding:8px 10px;text-align:center}
.unit{color:var(--muted)}
.status{color:var(--muted);font-size:14px}
.status.ok{color:var(--ok)}
.status.err{color:var(--danger)}
.lift,.lift-lg{transition:border-color .2s}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{display:flex;flex-direction:column;gap:8px;padding:20px;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);text-decoration:none;color:var(--text)}
.card .cta{margin-top:auto;color:var(--accent)}

.dropzone{display:flex;align-items:center;gap:16px;padding:18px;border-radius:12px;border:1.5px dashed var(--line-2);background:rgba(255,255,255,.015);cursor:pointer;transition:border-color .15s,background .15s}
.dropzone:hover{border-color:color-mix(in oklab,var(--accent),transparent 50%)}
.dropzone.dragover{border-color:var(--accent);background:color-mix(in oklab,var(--accent),transparent 92%)}
.dz-icon{font-size:24px;width:46px;height:46px;display:grid;place-items:center;border-radius:12px;background:var(--surface-2);flex:0 0 auto}
.dz-copy{font-size:14.5px;line-height:1.45}
.dz-copy strong{color:var(--text)}
.dz-copy .link{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.dz-sub{font-size:12.5px;margin-top:3px}

.progress{display:flex;align-items:center;gap:12px}
.progress-track{position:relative;flex:1;height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.progress-bar{height:100%;width:0%;background:var(--accent);transition:width .2s ease}
.progress.indeterminate .progress-bar{animation:indet 1.1s infinite linear;width:30%}
@keyframes indet{0%{transform:translateX(-100%)}100%{transform:translateX(400%)}}
@keyframes spin{to{transform:rotate(360deg)}}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.25);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}
.btn-primary .spinner{border-color:color-mix(in oklab,var(--on-accent),transparent 70%);border-top-color:var(--on-accent)}
.qa .q{margin-bottom:.5rem;line-height:1.5;white-space:normal}

/* ═══════════════ Accesso ═══════════════ */
.auth{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(340px,420px);gap:64px;align-items:center;min-height:calc(100vh - 200px);padding:24px 0}
.auth-intro h1{font-family:var(--serif);font-weight:400;font-size:clamp(44px,6vw,72px);line-height:1.02;letter-spacing:-.01em;margin:18px 0 18px}
.auth-intro .lead{font-size:17px;color:var(--muted);max-width:46ch;margin-bottom:28px}
.wave{width:min(440px,100%);height:64px;display:block}
.wave path{fill:none;stroke:var(--accent);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.8s .2s cubic-bezier(.6,.1,.3,1) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.wave path{animation:none;stroke-dashoffset:0}}
.features{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.features li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--muted)}
.features li b{color:var(--text);font-weight:600}
.features svg{width:34px;height:34px;padding:7px;border-radius:10px;background:var(--surface);border:1px solid var(--line);fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.auth-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:8px 26px 26px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:0 -26px 22px;padding:0 20px}
.tabs button{min-height:0;background:transparent;border:0;border-radius:0;padding:14px 8px 13px;margin-right:12px;color:var(--muted);font-size:15px;font-weight:600;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button:hover{color:var(--text)}
.tabs button[aria-selected="true"]{color:var(--text);border-bottom-color:var(--accent)}
.auth-form{display:flex;flex-direction:column;gap:16px}
.auth-form .status{min-height:1.2em;text-align:center}
.auth-form .btn{margin-top:4px}
.pw{position:relative;display:block}
.pw input{padding-right:84px}
.pw-toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);min-height:30px;padding:0 10px;font-size:12.5px;background:transparent;border-color:transparent;color:var(--muted)}
.pw-toggle:hover:not(:disabled){color:var(--text);border-color:transparent;background:rgba(255,255,255,.05)}
.pw-toggle:active:not(:disabled){transform:translateY(-50%)}
@media (max-width:900px){
  .auth{grid-template-columns:1fr;gap:28px;min-height:0;padding:4px 0}
  .auth-intro .features{display:none}
  .auth-intro h1{margin:10px 0 10px}
  .auth-intro .lead{margin-bottom:0;font-size:15.5px}
  .wave{height:44px}
}

/* ═══════════════ Home ═══════════════ */
.dash-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin:8px 0 28px}
.dash-head h1{font-family:var(--serif);font-weight:400;font-size:clamp(38px,5vw,52px);letter-spacing:-.01em;margin:0 0 4px}
.dash-head p{margin:0;font-size:15px}
.group-title{font-size:13.5px;font-weight:600;color:var(--muted);margin:0 0 12px}
.tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:34px}
.tools-2{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}
.tool{position:relative;display:flex;flex-direction:column;gap:6px;padding:20px 20px 22px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);color:var(--text);text-decoration:none;overflow:hidden;transition:border-color .15s,background .15s}
.tool:hover{border-color:color-mix(in oklab,var(--accent),transparent 50%);background:color-mix(in oklab,var(--surface),#fff 2%)}
.tool h3{font-size:17px;margin:10px 0 0}
.tool p{margin:0;color:var(--muted);font-size:14px;line-height:1.5;max-width:44ch}
.tool-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:11px;background:color-mix(in oklab,var(--accent),transparent 88%)}
.tool-icon svg{width:22px;height:22px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tool-feature{padding-right:180px;min-height:170px}
.mini-sheet{position:absolute;right:26px;top:22px;width:118px;height:160px;background:#fff;border-radius:3px;padding:16px 12px 0 18px;box-shadow:0 18px 40px rgba(0,0,0,.45);transform:rotate(3deg);transition:transform .25s ease}
.tool-feature:hover .mini-sheet{transform:rotate(1deg) translateY(-3px)}
.mini-sheet b{display:block;font:700 7px/1 "Times New Roman",serif;color:#111;margin-bottom:9px}
.mini-sheet i{display:block;height:3px;background:#d7dbe2;border-radius:2px;margin-bottom:6px}
.mini-sheet i.s{width:62%}
@media (prefers-reduced-motion:reduce){.mini-sheet{transition:none}}
@media (max-width:900px){
  .tools,.tools-2{grid-template-columns:1fr}
  .tool-feature{padding-right:20px}
  .mini-sheet{display:none}
}

/* ═══════════════ Dettatura ═══════════════ */
.dict{max-width:900px;margin:0 auto}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-head h1{font-family:var(--serif);font-weight:400;font-size:44px;margin:0 0 4px}
.page-head p{margin:0}
.field-inline{flex-direction:row;align-items:center;gap:10px}
.field-inline select{width:auto;min-width:150px}
.recorder{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px 22px;margin-bottom:18px}
.rec-main{display:flex;align-items:center;gap:20px}
.rec-btn{width:68px;height:68px;min-height:0;padding:0;border-radius:50%;flex:0 0 auto;background:var(--accent);border:0;color:var(--on-accent);box-shadow:0 10px 30px color-mix(in oklab,var(--accent),transparent 70%)}
.rec-btn svg{width:28px;height:28px;stroke-width:2}
.rec-btn:hover:not(:disabled){filter:brightness(1.08)}
.rec-btn.stop{background:var(--danger);color:#2a0606;box-shadow:0 0 0 0 color-mix(in oklab,var(--danger),transparent 55%);animation:ring 1.6s infinite}
.rec-btn.stop svg{fill:currentColor;stroke:none}
@keyframes ring{70%{box-shadow:0 0 0 14px transparent}100%{box-shadow:0 0 0 0 transparent}}
#stopBtn{display:none}
.is-listening #startBtn{display:none}
.is-listening #stopBtn{display:inline-flex}
.no-sr .rec-btn{background:var(--surface-2);color:var(--muted);box-shadow:none}
.rec-info{flex:1;min-width:0}
.rec-line{display:flex;align-items:center;gap:12px}
.rec-line .status{font-size:15px;font-weight:500;color:var(--text)}
.rec-line .status.err{color:var(--danger)}
.bars{display:flex;align-items:center;gap:3px;height:22px}
.bars i{width:3px;height:6px;border-radius:2px;background:var(--line-2);transition:background .2s}
.is-listening .bars i{background:var(--accent);animation:bar 1s ease-in-out infinite}
.is-listening .bars i:nth-child(2){animation-delay:-.8s}.is-listening .bars i:nth-child(3){animation-delay:-.35s}
.is-listening .bars i:nth-child(4){animation-delay:-.6s}.is-listening .bars i:nth-child(5){animation-delay:-.15s}
.is-listening .bars i:nth-child(6){animation-delay:-.5s}.is-listening .bars i:nth-child(7){animation-delay:-.9s}
@keyframes bar{50%{height:22px}}
@media (prefers-reduced-motion:reduce){.is-listening .bars i,.rec-btn.stop{animation:none}.is-listening .bars i{height:14px}}
.interim{min-height:24px;margin-top:6px;color:var(--muted);font-style:italic;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.interim:empty::before{content:"Il testo provvisorio appare qui mentre parli.";opacity:.6}
.is-listening .interim:empty::before{content:"…"}
.rec-opts{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:14px}
.rec-opts #breakBtn{margin-right:auto}
.check{display:inline-flex;align-items:center;gap:9px;cursor:pointer}
.gap-set{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.rec-opts .num{width:58px;min-height:36px;padding:6px 8px}
.doc-area{margin-top:6px}
.doc-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.doc-actions{display:flex;gap:8px;flex-wrap:wrap}
.paper{background:#fff;color:#16181d;border-radius:4px;box-shadow:0 1px 2px rgba(0,0,0,.2),0 24px 70px rgba(0,0,0,.4);
  min-height:520px;padding:56px 64px 72px;font-family:"Times New Roman","TesiSerif",Georgia,serif;font-size:17px;line-height:1.65;outline:none;caret-color:#1d4ed8}
.paper p{margin:0 0 12px}
.paper:empty::before{content:attr(data-ph);color:#9aa3b2;font-style:italic}
.paper ::selection{background:#cfe0ff}
@media (max-width:640px){
  .page-head h1{font-size:36px}
  .rec-main{gap:14px}
  .rec-btn{width:58px;height:58px}
  .rec-opts #breakBtn{margin-right:0;width:100%}
  .paper{padding:28px 22px 40px;min-height:380px;font-size:16.5px}
}
/* vecchia struttura della pagina (compatibilità) */
.doc{min-height:320px}

/* ================================
   QUIZ — MODERN LOOK (SCOPED)
   ================================ */

.page-quiz #topicsSec .mode-group,
.page-quiz #topicsSec > label { display:inline-flex; align-items:center; gap:10px; margin-right:14px; }

.page-quiz #topicsSec input[type="radio"]{
  appearance: none; width:16px;height:16px; border:1px solid var(--stroke); border-radius:999px;
  background:rgba(255,255,255,.03);
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.page-quiz #topicsSec input[type="radio"]:focus-visible{ outline:none; box-shadow:0 0 0 3px color-mix(in oklab, var(--accent), transparent 80%); }
.page-quiz #topicsSec input[type="radio"]:checked{
  border-color: color-mix(in oklab, var(--accent), white 10%);
  background-image: radial-gradient(var(--accent) 45%, transparent 46%);
}

/* Argomenti (pill) */
.page-quiz #topicsList{ display:flex; flex-wrap:wrap; gap:8px; margin-top:.75rem; }
.page-quiz #topicsList label.chip{
  border:1px solid var(--stroke); background: rgba(255,255,255,.03); color:var(--text);
  border-radius:999px; padding:6px 10px; font-size:13px; cursor:pointer;
  transition: border-color .2s ease, background .2s ease, transform .12s ease, box-shadow .2s ease;
  display:inline-flex; align-items:center; gap:8px;
}
.page-quiz #topicsList label.chip:hover{ transform:translateY(-1px); border-color:rgba(255,255,255,.18); }
.page-quiz #topicsList label.chip input{ display:none; }
.page-quiz #topicsList label.chip:has(input:checked){
  border-color: color-mix(in oklab, var(--accent), white 8%);
  background: color-mix(in oklab, var(--accent), transparent 85%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent), transparent 88%);
}

/* Domande */
.page-quiz #questions{ display:grid; gap:12px; }
.page-quiz .qa{
  border:1px solid var(--stroke); border-radius:14px; background:rgba(255,255,255,.03); padding:14px;
}
.page-quiz .qa .q{ margin:0 0 8px; font-size:15px; line-height:1.55; }

.page-quiz label.opt{
  display:flex; gap:10px; align-items:flex-start; border:1px solid var(--stroke);
  background:rgba(255,255,255,.02); border-radius:12px; padding:10px 12px; cursor:pointer;
  transition: border-color .2s ease, background .2s ease, transform .12s ease, box-shadow .2s ease;
}
.page-quiz label.opt:hover{ border-color:rgba(255,255,255,.18); transform:translateY(-1px); }
.page-quiz label.opt input[type="radio"]{
  appearance:none; width:16px;height:16px; flex:0 0 auto; margin-top:3px;
  border:1px solid var(--stroke); border-radius:999px; background:rgba(255,255,255,.02);
  transition:border-color .2s ease, background .2s ease;
}
.page-quiz label.opt input[type="radio"]:checked{
  border-color: color-mix(in oklab, var(--accent), white 10%);
  background-image: radial-gradient(var(--accent) 45%, transparent 46%);
}
.page-quiz label.opt:has(input:checked){
  border-color: color-mix(in oklab, var(--accent), white 8%);
  background: color-mix(in oklab, var(--accent), transparent 92%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent), transparent 88%);
}
.page-quiz label.opt.is-correct{
  border-color: color-mix(in oklab, var(--ok), white 10%);
  background: color-mix(in oklab, var(--ok), transparent 90%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--ok), transparent 85%);
}
.page-quiz label.opt.is-wrong{
  border-color: color-mix(in oklab, var(--danger), white 10%);
  background: color-mix(in oklab, var(--danger), transparent 92%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--danger), transparent 88%);
}

/* Tabella risultati (solo nel quiz) */
.page-quiz .table{
  width:100%; border-collapse:separate; border-spacing:0; font-size:14px;
  border:1px solid var(--stroke); border-radius:12px; overflow:hidden; background:rgba(255,255,255,.02);
}
.page-quiz .table thead th{
  position:sticky; top:0; background: rgba(255,255,255,.05);
  color:var(--muted); font-weight:600; padding:10px 12px; border-bottom:1px solid var(--stroke); backdrop-filter: blur(6px);
}
.page-quiz .table tbody td{ padding:10px 12px; border-bottom:1px solid rgba(255,255,255,.06); vertical-align:top; }
.page-quiz .table tbody tr:nth-child(2n){ background: rgba(255,255,255,.02); }
.page-quiz .table tbody tr:last-child td{ border-bottom:none; }

/* Flashcard modal – solo quiz */
.page-quiz #flashModal{ border-color: var(--stroke) !important; border-radius:16px !important; }
.page-quiz #flashModal .panel-title{ margin-top:0; }
.page-quiz #flashBody.stack{ gap:8px; }
.page-quiz #flashAnswer{ border-top:1px solid rgba(255,255,255,.08) !important; padding-top:.75rem !important; }
.page-quiz #flashModal .actions, .page-quiz #flashModal .modal-actions{ display:flex; gap:.5rem; align-items:center; flex-wrap:wrap; }

/* Progress del quiz */
.page-quiz #uploadProgress.progress > div,
.page-quiz #createProgress.progress > div,
.page-quiz #flashProgress.progress > div{
  height:10px; width:100%; border-radius:999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 16px color-mix(in oklab, var(--accent), transparent 70%);
  transition: width .2s ease;
}



/* === Compress page: leggibilità dropdown solo per #fmt e #br === */
#fmt, #br{
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 10px 36px 10px 12px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;

  /* spingi il menu nativo su tema scuro dove supportato */
  color-scheme: dark;

  /* caret visibile su sfondo scuro */
  -webkit-appearance: none;
  appearance: none;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23a5afc6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  background-size: 14px 14px;
}

#fmt:hover, #br:hover{
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
}
#fmt:focus-visible, #br:focus-visible{
  border-color: color-mix(in oklab, var(--accent), white 12%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent), transparent 80%);
}

/* pannello opzioni (supportato su molti browser) */
#fmt option, #fmt optgroup,
#br option,  #br optgroup{
  background-color: #0d1117;  /* popup scuro */
  color: var(--text);
}
#fmt option:disabled, #br option:disabled{ color: var(--muted); }

/* vecchi Edge/IE: nascondi freccia nativa */
#fmt::-ms-expand, #br::-ms-expand{ display:none; }


/* ═══════════════ Pagine strumento (Carica audio, Riduci peso, Quiz) ═══════════════ */
.tool-page{max-width:1040px;margin:0 auto}
.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:18px}
.tool-aside{padding:6px 4px;position:sticky;top:84px}
.tool-aside h2{font-size:14px;color:var(--muted);font-weight:600;margin:0 0 14px}
.steps{list-style:none;counter-reset:s;margin:0 0 18px;padding:0;display:flex;flex-direction:column;gap:14px}
.steps li{counter-increment:s;display:grid;grid-template-columns:28px 1fr;gap:10px;font-size:14px;line-height:1.5;color:var(--muted)}
.steps li::before{content:counter(s);width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12.5px;font-weight:650;
  color:var(--accent);background:color-mix(in oklab,var(--accent),transparent 88%)}
.steps b{color:var(--text);font-weight:600}
.aside-note{font-size:13px;line-height:1.5;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin:0}
@media (max-width:900px){.tool-layout{grid-template-columns:1fr}.tool-aside{position:static;order:2}}

.dz-icon svg{width:24px;height:24px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.dz-copy{display:block}
.dz-copy .dz-sub{display:block}
.dz-copy > strong,.dz-copy > .link{display:inline}
.dropzone-lg{flex-direction:column;justify-content:center;text-align:center;padding:34px 20px;gap:12px;min-height:180px}
.dropzone-lg .dz-icon{width:54px;height:54px;border-radius:14px;background:color-mix(in oklab,var(--accent),transparent 88%)}
.dropzone-lg .dz-icon svg{width:28px;height:28px}
.dropzone-lg .dz-copy{display:block;font-size:15px}
.dropzone-lg .dz-sub{display:block;margin-top:6px}
.dropzone:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.file-status:not(:empty),#statusAudio:not(:empty),#statusPdf:not(:empty){display:inline-flex;align-items:center;gap:8px;align-self:flex-start;font-size:13.5px;padding:6px 12px;border-radius:999px;
  background:color-mix(in oklab,var(--accent),transparent 90%);color:var(--text)}
.file-status:not(:empty)::before,#statusAudio:not(:empty)::before,#statusPdf:not(:empty)::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.file-status.err:not(:empty),#statusAudio.err:not(:empty),#statusPdf.err:not(:empty){background:color-mix(in oklab,var(--danger),transparent 88%)}
.file-status.err:not(:empty)::before,#statusAudio.err:not(:empty)::before,#statusPdf.err:not(:empty)::before{background:var(--danger)}
.tool-card textarea{min-height:64px}
.form-grid > .actions{padding-top:6px;border-top:1px solid var(--line);margin-top:4px;padding-top:18px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.grid-2{grid-template-columns:1fr}}
.options{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:640px){.options{grid-template-columns:1fr}}
.option{display:flex;gap:12px;align-items:flex-start;padding:14px;border:1px solid var(--line-2);border-radius:12px;cursor:pointer;transition:border-color .15s,background .15s}
.option:hover{border-color:color-mix(in oklab,var(--accent),transparent 50%)}
.option:has(input:checked){border-color:color-mix(in oklab,var(--accent),transparent 40%);background:color-mix(in oklab,var(--accent),transparent 94%)}
.option input{margin-top:2px}
.option b{display:block;font-size:14.5px;font-weight:600}
.option small{display:block;color:var(--muted);font-size:12.5px;line-height:1.45;margin-top:2px}
.result{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px;padding:16px 18px;border-radius:14px;
  background:color-mix(in oklab,var(--ok),transparent 92%);border:1px solid color-mix(in oklab,var(--ok),transparent 70%)}
.result-icon svg{width:30px;height:30px;fill:none;stroke:var(--ok);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;display:block}
.result-text{flex:1;min-width:160px}
.result-text b{font-size:15px}
.result-text p{margin:2px 0 0;font-size:14px}
.result .btn{text-decoration:none}

/* Quiz */
.page-quiz .step-title{display:flex;align-items:center;gap:12px;font-size:18px;margin:0 0 18px}
.step-n{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:650;color:var(--on-accent);background:var(--accent);flex:0 0 auto}
.step-n svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.q-upload{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:16px;align-items:stretch}
.q-upload .dropzone-lg{min-height:150px}
.q-upload-side{display:flex;flex-direction:column;justify-content:center;gap:10px}
.q-upload-side small{line-height:1.45}
@media (max-width:700px){.q-upload{grid-template-columns:1fr}}
.saved{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.saved h3{font-size:13.5px;color:var(--muted);font-weight:600;margin:0 0 10px}
.saved-list{display:flex;flex-wrap:wrap;gap:8px}
.saved-list .chip{min-height:36px;border-radius:10px;background:var(--surface-2)}
.seg{display:inline-flex;padding:4px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);gap:4px;margin-bottom:6px;flex-wrap:wrap}
.seg label{position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;padding:8px 14px;border-radius:9px;font-size:14px;font-weight:500;color:var(--muted)}
.seg label:has(input:checked) span{background:var(--surface);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.35)}
.seg label:has(input:focus-visible) span{outline:2px solid var(--accent)}
.page-quiz #topicsList:empty{display:none}
.page-quiz #topicsList > div{margin:0 !important}
.page-quiz #topicsList label.chip{width:auto !important;display:inline-flex !important;min-height:34px}
.page-quiz #createProgress,.page-quiz #uploadProgress{margin-top:10px}
.score{font-family:var(--serif);font-size:34px;margin:-4px 0 14px}
.table-wrap{overflow-x:auto;border-radius:12px}
.page-quiz .table,.q-modal .table{min-width:640px}
.q-modal .table{width:100%;border-collapse:collapse;font-size:14px}
.q-modal .table th,.q-modal .table td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.q-modal .table th{color:var(--muted);font-weight:600;font-size:13px}
.btn-secondary{background:var(--surface-2);border-color:var(--line-2);color:var(--text)}
#historyStats strong{font-size:18px}
#historyList > div:hover{background:rgba(255,255,255,.02)}
.q-overlay{position:fixed;inset:0;background:rgba(3,6,12,.7);z-index:9998}
.q-modal{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(720px,94vw);max-height:88vh;overflow-y:auto;z-index:9999;
  background:#141a27;border:1px solid var(--line-2);border-radius:18px;padding:24px;box-shadow:0 30px 80px rgba(0,0,0,.55)}
.q-modal-wide{width:min(920px,94vw)}
.q-modal h2{margin:0 0 14px}
.flash-q{font-family:var(--serif);font-size:26px;line-height:1.3}
.flash-hint{margin-top:12px;padding:10px 12px;border-radius:10px;background:color-mix(in oklab,var(--warn),transparent 90%);color:var(--text);font-size:14.5px}
.flash-a{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);white-space:pre-wrap;line-height:1.55;color:var(--muted)}
.q-modal-actions{display:flex;gap:8px;margin-top:20px;align-items:center;flex-wrap:wrap}
.q-modal .progress > div{height:8px;border-radius:999px;background:var(--accent);transition:width .2s ease}