/* ============================================================
   FinLab — design system
   Nero profondo, gradienti vividi, angoli molto arrotondati,
   numeri grandi, movimento con molla. La gerarchia la fanno
   il contrasto e lo spazio, non i bordi.
   ============================================================ */
:root{
  /* fondali */
  --bg:#0b0d12; --bg2:#12161d; --bg3:#161b24; --bg4:#1c222c;
  --line:#1c212b; --line-solid:#1c212b; --line-strong:#28303b;

  /* testo */
  --txt:#edf0f5; --txt2:#9aa5b6; --txt3:#7b8698;

  /* un solo accento: tutto il resto e' grigio o semantico */
  --acc:#3ddc97; --acc-dim:rgba(61,220,151,.13);
  --brand:#3ddc97; --brand2:#22c39b;
  --blue:#5b9cf8; --amber:#f0b544; --red:#ff6b7a; --violet:#a78bfa; --pink:#f472b6;

  /* gradienti: solo dentro l'accento, mai come decorazione */
  --grad:linear-gradient(135deg,#3ddc97 0%,#22c39b 100%);
  --grad-acc:linear-gradient(135deg,#3ddc97 0%,#22c39b 100%);
  --grad-warm:linear-gradient(135deg,#f0b544 0%,#ff6b7a 100%);
  --grad-surface:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.008));

  /* forma e movimento */
  --r:16px; --r-lg:20px; --r-xl:26px;
  --spring:cubic-bezier(.34,1.4,.5,1);
  --ease:cubic-bezier(.22,.8,.3,1);
  --glow:0 10px 30px -10px rgba(61,220,151,.4);
  --glow-acc:0 10px 30px -10px rgba(61,220,151,.4);

  --sans:Manrope,-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --mono:"SF Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
  --serif:"Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sat:env(safe-area-inset-top); --sab:env(safe-area-inset-bottom);
  --fs:17px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none !important}
html,body{margin:0;padding:0;height:100%;overscroll-behavior-y:none}
body{background:var(--bg);color:var(--txt);font-family:var(--sans);font-size:var(--fs);line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
/* aloni di colore fissi sullo sfondo: danno profondità senza pesare nulla */
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(700px 420px at 72% -12%, rgba(61,220,151,.055), transparent 66%)}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none;cursor:pointer}
svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#252c37;border-radius:8px}
::-webkit-scrollbar-track{background:transparent}
::selection{background:rgba(61,220,151,.28)}

/* ---------- avvio ---------- */
.boot{position:fixed;inset:0;display:grid;place-content:center;gap:24px;background:var(--bg);z-index:99;transition:opacity .4s}
.boot.out{opacity:0;pointer-events:none}
.boot-logo{font-weight:800;letter-spacing:.24em;font-size:26px}
.boot-logo span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.boot-bar{width:180px;height:3px;background:#1c1c26;border-radius:3px;overflow:hidden}
.boot-bar i{display:block;height:100%;width:42%;background:var(--grad);border-radius:3px;animation:slide 1.05s infinite var(--ease)}
@keyframes slide{0%{transform:translateX(-110%)}100%{transform:translateX(320%)}}

/* ---------- struttura ---------- */
.app{display:flex;min-height:100%}
.rail{display:none}
.main{flex:1;min-width:0;padding-top:var(--sat);padding-bottom:calc(96px + var(--sab))}
.view{max-width:840px;margin:0 auto;padding:20px 16px 40px;animation:viewin .34s var(--ease)}
@keyframes viewin{from{opacity:0;transform:translateY(10px)}}

/* barra inferiore galleggiante */
.tabbar{position:fixed;left:12px;right:12px;bottom:calc(10px + var(--sab));z-index:40;display:flex;gap:2px;
  padding:7px;border-radius:26px;background:rgba(18,18,25,.82);backdrop-filter:blur(22px) saturate(1.4);
  border:1px solid var(--line-strong);box-shadow:0 16px 40px -12px rgba(0,0,0,.9)}
.tab{flex:1;display:grid;justify-items:center;gap:3px;padding:8px 2px;border-radius:20px;color:var(--txt3);
  transition:color .2s var(--ease),background .25s var(--ease)}
.tab b{font-size:10px;font-weight:650;letter-spacing:.02em}
.tab svg{width:21px;height:21px;transition:transform .35s var(--spring)}
.tab.on{color:var(--txt);background:rgba(255,255,255,.07)}
.tab.on svg{transform:translateY(-2px) scale(1.1)}

@media(min-width:900px){
  .tabbar{display:none}
  .main{padding-bottom:0}
  .rail{display:flex;flex-direction:column;gap:4px;width:240px;flex:0 0 240px;height:100vh;position:sticky;top:0;
    padding:26px 16px;border-right:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.03),transparent)}
  .rail-brand{font-weight:800;letter-spacing:.2em;font-size:15px;padding:6px 12px 24px}
  .rail-brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  .rail-nav{display:flex;flex-direction:column;gap:3px}
  .rail-item{display:flex;align-items:center;gap:13px;padding:12px 14px;border-radius:15px;color:var(--txt2);
    font-size:14.5px;font-weight:600;transition:.2s var(--ease);position:relative}
  .rail-item:hover{background:rgba(255,255,255,.05);color:var(--txt)}
  .rail-item.on{background:rgba(255,255,255,.08);color:var(--txt)}
  .rail-item.on::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:20px;border-radius:3px;background:var(--grad)}
  .rail-foot{margin-top:auto}
  .view{padding:38px 30px 60px}
}

/* ---------- tipografia ---------- */
h1{font-size:30px;font-weight:800;letter-spacing:-.033em;margin:0 0 4px;line-height:1.1}
h2{font-size:19px;font-weight:750;letter-spacing:-.02em;margin:38px 0 14px;color:var(--txt2)}
h3{font-size:16px;font-weight:700;margin:22px 0 8px}
p{margin:0 0 14px}
.sub{color:var(--txt2);font-size:14.5px;margin:0 0 22px}
.eyebrow{font-size:10.5px;font-weight:750;letter-spacing:.15em;text-transform:uppercase;color:var(--txt3);margin-bottom:9px}
.muted{color:var(--txt2)}
code{font-family:var(--mono);font-size:.88em;background:rgba(77,141,255,.12);padding:2px 7px;border-radius:7px;color:#bcd4ff}

/* ---------- superfici ---------- */
.card{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px;transition:.25s var(--ease)}
.card+.card{margin-top:12px}
.row{display:flex;align-items:center;gap:12px}
.between{display:flex;align-items:center;justify-content:space-between;gap:12px}
.grid{display:grid;gap:12px}
.grid2{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(148px,1fr))}

.chip{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:650;padding:6px 12px;border-radius:99px;
  background:rgba(255,255,255,.06);color:var(--txt2);border:1px solid var(--line);white-space:nowrap;transition:.2s var(--ease)}
a.chip:hover{background:rgba(255,255,255,.1);color:var(--txt)}
.chip.acc{background:rgba(47,224,138,.13);color:var(--acc);border-color:rgba(47,224,138,.28)}
.chip.blue{background:rgba(77,141,255,.14);color:var(--blue);border-color:rgba(77,141,255,.3)}
.chip.amber{background:rgba(255,194,71,.14);color:var(--amber);border-color:rgba(255,194,71,.3)}
.chip.red{background:rgba(255,92,108,.14);color:var(--red);border-color:rgba(255,92,108,.3)}
.chip.violet{background:rgba(160,107,255,.15);color:var(--violet);border-color:rgba(160,107,255,.32)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border-radius:99px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.06);color:var(--txt);font-weight:650;font-size:15px;
  cursor:pointer;transition:transform .18s var(--spring),background .2s,box-shadow .25s;position:relative;overflow:hidden;user-select:none}
.btn:hover{background:rgba(255,255,255,.1)}
.btn:active{transform:scale(.965)}
.btn[disabled]{opacity:.35;pointer-events:none}
.btn.primary{background:var(--grad);border-color:transparent;color:#fff;box-shadow:var(--glow)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.acc{background:var(--grad-acc);border-color:transparent;color:#04240f;box-shadow:var(--glow-acc)}
.btn.danger{background:rgba(255,92,108,.12);color:var(--red);border-color:rgba(255,92,108,.3)}
.btn.ghost{background:transparent}
.btn.sm{padding:9px 15px;font-size:13.5px}
.btn.block{width:100%}
.btn.buy{background:rgba(47,224,138,.14);color:var(--acc);border-color:rgba(47,224,138,.32)}
.btn.sell{background:rgba(255,92,108,.13);color:var(--red);border-color:rgba(255,92,108,.32)}
/* riflesso che attraversa il pulsante principale ogni tanto */
.btn.primary::after{content:'';position:absolute;top:0;left:-60%;width:40%;height:100%;pointer-events:none;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.28),transparent);
  animation:shine 5s var(--ease) infinite}
@keyframes shine{0%,74%{left:-60%}100%{left:130%}}

.bar{height:7px;background:rgba(255,255,255,.07);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--grad-acc);border-radius:99px;transition:width .7s var(--ease)}
.bar.blue i{background:var(--grad)}

.kpi{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 15px}
.kpi .k{font-size:10.5px;color:var(--txt3);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.kpi .v{font-size:23px;font-weight:800;letter-spacing:-.035em;margin-top:4px;font-variant-numeric:tabular-nums}
.pos{color:var(--acc)} .neg{color:var(--red)}

/* ---------- percorso ---------- */
.mod{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;margin-bottom:12px;transition:.25s var(--ease)}
.mod:hover{border-color:var(--line-strong)}
.mod-head{display:flex;gap:14px;align-items:center;padding:16px 18px;cursor:pointer}
.mod-ico{width:48px;height:48px;flex:0 0 48px;border-radius:16px;display:grid;place-content:center;font-size:22px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);transition:.35s var(--spring)}

.mod-title{font-weight:700;font-size:16.5px;letter-spacing:-.01em}
.mod-meta{font-size:12.5px;color:var(--txt3);margin-top:3px}
.mod-body{border-top:1px solid var(--line);padding:8px 10px 12px;display:none}
.mod.open .mod-body{display:block;animation:viewin .3s var(--ease)}
.les{display:flex;align-items:center;gap:13px;padding:12px 11px;border-radius:15px;transition:.18s var(--ease)}
.les:hover{background:rgba(255,255,255,.05);transform:translateX(3px)}
.les-n{width:28px;height:28px;flex:0 0 28px;border-radius:10px;display:grid;place-content:center;font-size:11.5px;font-weight:750;
  background:rgba(255,255,255,.06);color:var(--txt3);border:1px solid var(--line)}
.les.done .les-n{background:var(--grad-acc);color:#04240f;border-color:transparent}
.les.lock{opacity:.38}
.les-t{flex:1;min-width:0;font-size:14.5px;font-weight:600}
.les-t small{display:block;color:var(--txt3);font-size:12px;font-weight:500;margin-top:1px}

/* ---------- lettura ---------- */
.reader{font-size:17.5px;line-height:1.72}
.reader p{margin:0 0 16px}
.reader h2{font-size:21px;margin:34px 0 12px}
.reader h3{font-size:16.5px;color:var(--acc);margin:26px 0 8px}
.reader ul,.reader ol{margin:0 0 16px;padding-left:22px}
.reader li{margin-bottom:8px}
.reader strong,.slide strong{color:#fff;font-weight:700}
.reader mark,.slide mark{background:linear-gradient(180deg,transparent 52%,rgba(255,194,71,.35) 52%);
  color:inherit;border-radius:2px;padding:1px 2px}
.formula{background:rgba(77,141,255,.07);border:1px solid rgba(77,141,255,.22);border-left:3px solid var(--blue);
  border-radius:14px;padding:15px 17px;margin:0 0 16px;font-family:var(--mono);font-size:15px;overflow-x:auto;color:#cfe0ff}
.formula .lbl{display:block;font-family:var(--sans);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--blue);font-weight:750;margin-bottom:8px}
.callout{border-radius:16px;padding:15px 17px;margin:0 0 16px;font-size:16px;border:1px solid}
.callout .ct{font-weight:750;font-size:12px;letter-spacing:.07em;text-transform:uppercase;margin-bottom:7px;display:flex;gap:7px;align-items:center}
.callout p:last-child{margin:0}
.callout.tip{background:rgba(47,224,138,.09);border-color:rgba(47,224,138,.24)}.callout.tip .ct{color:var(--acc)}
.callout.warn{background:rgba(255,194,71,.09);border-color:rgba(255,194,71,.24)}.callout.warn .ct{color:var(--amber)}
.callout.trap{background:rgba(255,92,108,.09);border-color:rgba(255,92,108,.24)}.callout.trap .ct{color:var(--red)}
.callout.key{background:rgba(61,220,151,.10);border-color:rgba(61,220,151,.26)}.callout.key .ct{color:var(--acc)}
.example{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);border-radius:16px;padding:17px;margin:0 0 16px}
.example .ct{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--pink);font-weight:750;margin-bottom:9px}
.tbl{width:100%;border-collapse:collapse;font-size:14.5px;margin:0 0 16px;display:block;overflow-x:auto}
.tbl th,.tbl td{padding:10px 13px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.tbl th{font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--txt3);font-weight:750}
.tbl td{font-variant-numeric:tabular-nums}
.tbl tr:last-child td{border-bottom:0}
.term{border-bottom:1px dashed var(--txt3);cursor:help}

/* ---------- barra di selezione ---------- */
.selbar{position:fixed;z-index:60;display:flex;gap:2px;padding:5px;border-radius:99px;background:rgba(30,30,42,.96);
  backdrop-filter:blur(14px);border:1px solid var(--line-strong);box-shadow:0 14px 34px rgba(0,0,0,.8);animation:pop .16s var(--spring)}
@keyframes pop{from{opacity:0;transform:scale(.86)}}
.selbar button{display:flex;align-items:center;gap:6px;background:none;border:0;padding:9px 13px;border-radius:99px;cursor:pointer;font-size:13px}
.selbar button b{font-weight:650}
.selbar button:hover{background:rgba(255,255,255,.09)}

/* ---------- esercizi ---------- */
.qwrap{max-width:640px;margin:0 auto}
.qprog{display:flex;gap:4px;margin-bottom:24px}
.qprog i{flex:1;height:4px;border-radius:99px;background:rgba(255,255,255,.08);transition:.35s var(--ease)}
.qprog i.ok{background:var(--grad-acc)}.qprog i.ko{background:var(--red)}.qprog i.cur{background:var(--txt3)}
.qtext{font-size:20px;font-weight:700;line-height:1.42;letter-spacing:-.02em;margin:0 0 22px}
.opt{display:flex;align-items:flex-start;gap:13px;width:100%;text-align:left;padding:16px 17px;border-radius:18px;
  border:1.5px solid var(--line);background:var(--bg2);margin-bottom:10px;cursor:pointer;
  transition:transform .18s var(--spring),border-color .2s,background .2s;font-size:15.5px;line-height:1.45}
.opt:hover{border-color:var(--line-strong);transform:translateX(3px)}
.opt .let{width:26px;height:26px;flex:0 0 26px;border-radius:9px;background:rgba(255,255,255,.07);display:grid;place-content:center;
  font-size:12px;font-weight:750;color:var(--txt3);transition:.2s}
.opt.sel{border-color:var(--brand);background:rgba(61,220,151,.10)}
.opt.right{border-color:var(--acc);background:rgba(47,224,138,.1);animation:goodpop .45s var(--spring)}
.opt.right .let{background:var(--grad-acc);color:#04240f}
.opt.wrong{border-color:var(--red);background:rgba(255,92,108,.1);animation:shake .42s}
.opt.wrong .let{background:var(--red);color:#2a0508}
@keyframes goodpop{40%{transform:scale(1.025)}}
@keyframes shake{25%{transform:translateX(-5px)}55%{transform:translateX(5px)}80%{transform:translateX(-2px)}}
.feedback{border-radius:18px;padding:16px 17px;margin-top:15px;font-size:15px;line-height:1.6;animation:pop .22s var(--spring)}
.feedback.ok{background:rgba(47,224,138,.1);border:1px solid rgba(47,224,138,.26)}
.feedback.ko{background:rgba(255,92,108,.1);border:1px solid rgba(255,92,108,.26)}
.feedback .ft{font-weight:750;margin-bottom:6px}
.numin{width:100%;padding:16px 18px;border-radius:18px;border:1.5px solid var(--line);background:var(--bg2);
  font-size:20px;font-family:var(--mono);text-align:center;font-variant-numeric:tabular-nums;transition:.2s}
.numin:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(61,220,151,.16)}
textarea.numin{text-align:left;font-family:var(--sans);font-size:15.5px;min-height:120px;resize:vertical}
.qfoot{position:sticky;bottom:calc(8px + var(--sab));padding-top:16px;background:linear-gradient(transparent,var(--bg) 32%)}

.res{text-align:center;position:relative;padding-top:8px}
.res-ring{position:relative;width:150px;height:150px;margin:0 auto;display:grid;place-items:center}
.res-val{position:absolute;display:grid;place-items:center;gap:2px}
.res-val b{font-size:38px;font-weight:800;letter-spacing:-.04em;font-variant-numeric:tabular-nums;line-height:1}
.res-val i{font-style:normal;font-size:12px;color:var(--txt3);font-weight:600}
.res-burst{left:50%;top:75px}
.res-wrong{padding:10px 0;border-bottom:1px solid var(--line);font-size:14.5px;text-align:left;line-height:1.45}
.res-wrong:last-of-type{border-bottom:0}
.res .card{text-align:left}

/* ---------- simulatore ---------- */
.chartbox{position:relative;background:#06060a;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.chartbox canvas{display:block;width:100%;touch-action:pan-y}
.simbar{display:flex;gap:9px;margin-top:11px}
.simbar .btn{flex:1;padding:15px 8px}
.tape{max-height:200px;overflow-y:auto;font-family:var(--mono);font-size:12px}
.tape div{padding:8px 9px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}
.tape div:last-child{border-bottom:0}

/* ---------- progressi ---------- */
.stat-hero{display:flex;align-items:center;gap:22px}
.stat-ring{position:relative;flex:0 0 116px;height:116px;display:grid;place-items:center}
.stat-ring .res-val b{font-size:28px}
.stat-side{flex:1;min-width:0}
.stat-line{display:flex;justify-content:space-between;align-items:baseline;gap:10px;padding:7px 0;border-bottom:1px solid var(--line)}
.stat-line:last-child{border-bottom:0}
.stat-line span{font-size:13px;color:var(--txt2)}
.stat-line b{font-size:17px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}

.spark{display:flex;gap:3px;align-items:flex-end;height:64px}
.spark i{flex:1;border-radius:3px 3px 1px 1px;min-height:6px;transition:.4s var(--spring)}
.spark-legend{display:flex;align-items:center;gap:6px;margin-top:10px;font-size:11px;color:var(--txt3)}
.spark-legend i{width:9px;height:9px;border-radius:3px;display:inline-block;margin-left:8px}
.spark-legend i:first-child{margin-left:0}
.modbar{margin:14px 0}
.modbar:last-child{margin-bottom:0}

.mile{display:flex;align-items:center;gap:14px;padding:10px 0;border-bottom:1px solid var(--line)}
.mile:last-of-type{border-bottom:0}
.mile-ring{position:relative;flex:0 0 44px;height:44px;display:grid;place-items:center}
.mile-ring span{position:absolute;font-size:16px}
.mile-t{font-size:14.5px;font-weight:650}
.mile-s{font-size:12.5px;color:var(--txt3);margin-top:1px}

@media(max-width:430px){
  .stat-hero{flex-direction:column;gap:16px}
  .stat-ring{flex:0 0 116px}
  .stat-side{width:100%}
}

/* ---------- quaderno ---------- */
.note{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);
  border-left:3px solid var(--amber);border-radius:18px;padding:16px 18px;margin-bottom:11px;transition:.2s var(--ease)}
.note:hover{border-color:var(--line-strong)}
.note blockquote{margin:0 0 9px;font-family:var(--serif);font-size:17px;line-height:1.6;color:#fff}
.note .src{font-size:12px;color:var(--txt3);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.note .cmt{margin-top:10px;font-size:14.5px;color:var(--txt2);border-top:1px solid var(--line);padding-top:10px;white-space:pre-wrap}
.search{width:100%;padding:14px 17px;border-radius:16px;border:1px solid var(--line);background:var(--bg2);font-size:15px;transition:.2s}
.search:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(61,220,151,.16)}

/* ---------- pannelli e avvisi ---------- */
.sheet{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.62);backdrop-filter:blur(6px);
  display:flex;align-items:flex-end;justify-content:center;animation:fade .2s}
@keyframes fade{from{opacity:0}}
.sheet-panel{width:100%;max-width:620px;max-height:88vh;overflow-y:auto;background:var(--bg2);background-image:var(--grad-surface);
  border:1px solid var(--line-strong);border-radius:var(--r-xl) var(--r-xl) 0 0;padding:24px 22px calc(26px + var(--sab));
  animation:up .4s var(--spring);box-shadow:0 -20px 60px rgba(0,0,0,.7)}
@keyframes up{from{transform:translateY(70px);opacity:.4}}
@media(min-width:900px){.sheet{align-items:center}.sheet-panel{border-radius:var(--r-xl)}}
.sheet-grab{width:38px;height:4px;border-radius:99px;background:rgba(255,255,255,.18);margin:-8px auto 16px}
@media(min-width:900px){.sheet-grab{display:none}}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(108px + var(--sab));z-index:90;
  background:rgba(30,30,42,.96);backdrop-filter:blur(14px);border:1px solid var(--line-strong);
  padding:13px 20px;border-radius:99px;font-size:14px;font-weight:600;box-shadow:0 14px 36px rgba(0,0,0,.7);
  animation:toastin .38s var(--spring);max-width:86vw;text-align:center}
@keyframes toastin{from{opacity:0;transform:translateX(-50%) translateY(16px)}}
@media(min-width:900px){.toast{bottom:30px}}
.empty{text-align:center;padding:56px 20px;color:var(--txt3)}
.empty .big{font-size:42px;margin-bottom:12px}

/* ============ slide della lezione ============ */
body.reading .tabbar{display:none}
body.reading .main{padding-bottom:0}
body.reading .view{padding-bottom:14px}

.deck{display:flex;flex-direction:column;gap:16px;min-height:calc(100dvh - 48px - var(--sab) - var(--sat))}
.deck-top{display:flex;align-items:center;gap:13px}
.deck-x{width:38px;height:38px;flex:0 0 38px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid var(--line);
  display:grid;place-content:center;font-size:15px;color:var(--txt2);cursor:pointer;transition:.2s var(--ease)}
.deck-x:hover{background:rgba(255,255,255,.11);color:var(--txt);transform:scale(1.05)}
.deck-meta{flex:1;min-width:0}
.deck-chapter{font-size:12px;font-weight:700;color:var(--txt2);margin-bottom:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.deck-prog{display:flex;gap:2px;align-items:center;height:5px}
.deck-prog i{flex:1;height:4px;border-radius:99px;background:rgba(255,255,255,.09);transition:.35s var(--ease)}
.deck-prog i.gap{margin-left:7px}
.deck-prog i.done{background:var(--grad)}
.deck-prog i.cur{background:#fff;height:5px;box-shadow:0 0 10px rgba(255,255,255,.55)}

.deck-stage{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding-top:6px}
.slide{font-size:17.5px;line-height:1.7;animation:slin .4s var(--ease)}
.slide.in-l{animation-name:slinL}
@keyframes slin{from{opacity:0;transform:translateX(30px) scale(.985)}}
@keyframes slinL{from{opacity:0;transform:translateX(-30px) scale(.985)}}
.slide h2{margin:0 0 18px;font-size:25px;line-height:1.18;letter-spacing:-.033em;font-weight:800}
.slide h3{margin:0 0 10px;font-size:17px;color:var(--acc);font-weight:700}
.slide p{margin:0 0 15px}
.slide p:last-child,.slide .callout:last-child,.slide .example:last-child,.slide .figbox:last-child{margin-bottom:0}
.slide ul,.slide ol{margin:0 0 15px;padding-left:22px}
.slide li{margin-bottom:10px}

.deck-nav{display:flex;align-items:center;gap:11px;padding-bottom:4px}
.deck-nav #dprev{width:56px;padding:14px 0;font-size:17px}
.deck-nav #dnext{min-width:140px;padding:14px 22px}
.deck-dots{flex:1;text-align:center;font-size:12.5px;color:var(--txt3);font-variant-numeric:tabular-nums;font-weight:600}

.check-slide .qtext{font-size:20px;margin-bottom:20px}
.slide-end{position:relative}
.end-burst{position:absolute;left:50%;top:45px;width:0;height:0;pointer-events:none}
.end-burst i{position:absolute;width:6px;height:6px;border-radius:50%;background:var(--acc);
  transform:rotate(var(--a)) translateY(0);opacity:0;animation:burst .9s var(--ease) forwards;animation-delay:var(--d)}
.end-burst i:nth-child(3n){background:var(--brand)}
.end-burst i:nth-child(3n+1){background:var(--amber)}
@keyframes burst{
  0%{opacity:0;transform:rotate(var(--a)) translateY(0) scale(.4)}
  35%{opacity:1}
  100%{opacity:0;transform:rotate(var(--a)) translateY(-76px) scale(.9)}}
.slide-end .end-mark{width:74px;height:74px;margin:8px auto 0;border-radius:50%;background:var(--grad-acc);color:#04240f;
  display:grid;place-content:center;font-size:34px;font-weight:800;box-shadow:var(--glow-acc);animation:endpop .65s var(--spring)}
@keyframes endpop{from{opacity:0;transform:scale(.4) rotate(-25deg)}}
.end-stat{text-align:center;margin-top:13px;font-size:14px;color:var(--txt2)}
.end-key{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);
  border-left:3px solid var(--acc);border-radius:16px;padding:14px 16px;margin-bottom:9px;font-size:15px;line-height:1.55}

/* ============ figure ============ */
.figbox{margin:0 0 16px;padding:16px 13px;background:rgba(255,255,255,.028);border:1px solid var(--line);border-radius:20px}
.figbox svg.fig{width:100%;height:auto;display:block;font-family:var(--sans)}
.figbox figcaption{margin-top:12px;font-size:12.5px;color:var(--txt3);text-align:center;line-height:1.5}

/* ============ home "Oggi" ============ */
.hero{position:relative;margin-bottom:16px}
.hero-top{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:16px}
.hero-top .chip b{font-weight:800;font-variant-numeric:tabular-nums}

.today{display:flex;align-items:center;gap:16px;padding:16px 18px}
.today-ring{position:relative;flex:0 0 60px;height:60px;display:grid;place-items:center}
.today-ring span{position:absolute;font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.today-t{font-weight:700;font-size:15.5px;letter-spacing:-.01em}
.today-s{color:var(--txt2);font-size:13.5px;margin-top:2px}
.today-s b{color:var(--txt);font-weight:750;font-variant-numeric:tabular-nums}
.ring{display:block}
.ring-fill{transition:stroke-dashoffset 1.1s cubic-bezier(.2,.8,.2,1)}

/* striscia dei sette giorni */
.week{display:flex;gap:5px;flex:0 0 auto}
.week i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.13);transition:.3s var(--spring)}
.week i.on{background:var(--acc);box-shadow:0 0 8px rgba(47,224,138,.5)}
.week i.now{outline:1.5px solid rgba(255,255,255,.3);outline-offset:2px}

/* tre riquadri della serie */
.streaks{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.sk{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);border-radius:18px;
  padding:13px 10px;text-align:center;transition:.2s var(--ease)}
.sk:hover{border-color:var(--line-strong)}
.sk span{font-size:17px;display:block;line-height:1.1}
.sk b{display:block;font-size:21px;font-weight:800;letter-spacing:-.03em;margin-top:3px;font-variant-numeric:tabular-nums}
.sk i{display:block;font-style:normal;font-size:10.5px;color:var(--txt3);font-weight:600;margin-top:1px}

/* azione principale */
.primary-card{display:block;position:relative;overflow:hidden;border-color:rgba(61,220,151,.24);
  background-image:linear-gradient(160deg,rgba(61,220,151,.11),transparent 62%);padding:22px;margin-bottom:12px}
.primary-card:hover{transform:translateY(-2px);border-color:rgba(61,220,151,.5)}
.pc-ico{position:absolute;right:18px;top:16px;font-size:34px;opacity:.28}
.pc-t{font-size:19px;font-weight:750;line-height:1.28;letter-spacing:-.02em;margin-bottom:4px;max-width:88%}
.pc-s{color:var(--txt2);font-size:13.5px;margin-bottom:16px;line-height:1.5}

.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin:12px 0 6px}
.quick a{background:var(--bg2);background-image:var(--grad-surface);border:1px solid var(--line);border-radius:20px;
  padding:16px 8px;text-align:center;display:grid;gap:3px;transition:.22s var(--spring)}
.quick a:hover{transform:translateY(-3px);border-color:var(--line-strong);background-color:var(--bg3)}
.quick a:active{transform:scale(.96)}
.quick span{font-size:21px;line-height:1.2}
.quick b{font-size:13px;font-weight:700}
.quick i{font-size:11.5px;color:var(--txt3);font-style:normal}

/* moduli con anello di progresso */
.mod-ring{position:relative;flex:0 0 44px;height:44px;display:grid;place-items:center}
.mod-ring .mod-ico{position:absolute;font-size:17px;background:none;border:0;width:auto;height:auto}
.mod-count{text-align:right;font-variant-numeric:tabular-nums;flex:0 0 auto}
.mod-count b{font-size:19px;font-weight:800;letter-spacing:-.03em}
.mod-count i{font-style:normal;font-size:13px;color:var(--txt3);font-weight:600}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}


/* ============================================================
   Direzione C — schermate nuove
   ============================================================ */
.hero-act{display:flex;gap:8px;align-items:center}
.chip.icon{padding:7px 10px;font-size:15px;line-height:1}
.chip.flame{border-color:rgba(240,181,68,.32);color:var(--amber)}
.chip.lv{font-size:11px;opacity:.65}
.eyebrow.acc{color:var(--acc)}
.muted.sm{font-size:12.5px}
.card.tight{padding:4px 14px}
.card.tight .les:last-child{border-bottom:0}

/* barra di avanzamento sottile dentro una riga */
.pbar{height:4px;border-radius:99px;background:var(--line-strong);overflow:hidden;margin-top:7px;max-width:190px}
.pbar i{display:block;height:100%;background:var(--acc);border-radius:99px;transition:width .5s var(--ease)}
.les .pc{font-size:12.5px;color:var(--txt3);font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}

/* andamento della settimana */
.wk{display:flex;align-items:flex-end;gap:7px;height:66px;position:relative;margin:12px 0 0}
.wk::before{content:'';position:absolute;left:0;right:0;bottom:var(--goal,60%);border-top:1px dashed var(--line-strong)}
.wk i{flex:1;background:var(--acc);border-radius:4px 4px 3px 3px;min-height:3px;
  transition:height .55s var(--spring)}
.wk i.z{background:var(--line-strong)}
.wk i.now{box-shadow:0 0 0 2px rgba(61,220,151,.22)}
.wkd{display:flex;gap:7px;margin-top:6px}
.wkd span{flex:1;text-align:center;font-size:11px;color:var(--txt3)}
.wkd span.now{color:var(--acc);font-weight:800}

/* riga di raccordo verso un'altra schermata */
.link-card{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:14px}
.link-card b{display:block;font-size:15.5px}
.link-card small{display:block;font-size:12.5px;color:var(--txt3);margin-top:2px}

/* percorso: intestazione numerata */
.trk{margin:26px 0 0}
.trk-h{display:flex;align-items:center;gap:12px;margin-bottom:4px}
.trk-n{width:26px;height:26px;flex:none;border-radius:8px;background:var(--acc-dim);color:var(--acc);
  display:grid;place-content:center;font-size:13px;font-weight:800}
.trk-x{flex:1;min-width:0}
.trk-t{font-size:17px;font-weight:800;letter-spacing:-.01em}
.trk-d{font-size:12.5px;color:var(--txt3)}
.trk-note{font-size:12px;color:var(--txt3);margin:0 0 10px 38px}

/* tre numeri in fila dentro una scheda */
.row-stat{display:flex;gap:8px;text-align:center;padding:14px}
.row-stat>div{flex:1}
.row-stat b{display:block;font-size:21px;font-weight:800;font-variant-numeric:tabular-nums}
.row-stat small{display:block;font-size:11px;color:var(--txt3);margin-top:1px}

/* concetto chiave: la frase che deve restare in testa */
.keycard{border:1px solid rgba(61,220,151,.3);background:linear-gradient(150deg,rgba(61,220,151,.12),rgba(61,220,151,.03));
  border-radius:var(--r);padding:18px 18px 16px;margin:18px 0}
.keycard .kc-l{display:block;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--acc);font-weight:800;margin-bottom:8px}
.keycard p{margin:0;font-size:19px;line-height:1.4;font-weight:700;letter-spacing:-.01em}
.keycard small{display:block;margin-top:9px;font-size:13.5px;color:var(--txt2);font-weight:500;line-height:1.5}

/* parole in evidenza dentro il testo */
mark.hl{background:linear-gradient(transparent 56%,rgba(61,220,151,.32) 56%);color:var(--txt);
  padding:0 2px;border-radius:2px}

/* una riga-elenco puo' essere un pulsante: stessa resa, ma navigabile da tastiera */
button.les{width:100%;background:none;border:0;font:inherit;color:inherit;text-align:left;cursor:pointer}
.tab,.rail-item{cursor:pointer}
.tab:focus-visible,.rail-item:focus-visible,.les:focus-visible,.chip:focus-visible{
  outline:2px solid var(--acc);outline-offset:2px;border-radius:10px}