:root{
  --bg:#08090b; --bg2:#0b0d11; --surface:#0f1216; --surface2:#141821;
  --line:#1b1f28; --line2:#242936;
  --tx:#e7e9ee; --tx2:#9aa1b1; --tx3:#666d7d;
  --ac:#7c6cff; --ac2:#a394ff; --acdim:rgba(124,108,255,.14);
  --ok:#3fbf8f; --warn:#e3b341; --bad:#e2574c; --new:#3c414d;
  --r:14px; --r2:10px;
  --sh:0 1px 2px rgba(0,0,0,.4), 0 8px 30px rgba(0,0,0,.25);
  --ff:'Inter',ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,'SF Mono',Menlo,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--tx); font-family:var(--ff);
  font-size:15px; line-height:1.55; -webkit-font-smoothing:antialiased;
  letter-spacing:-.011em;
  background-image:radial-gradient(900px 500px at 82% -12%, rgba(124,108,255,.10), transparent 60%),
                   radial-gradient(700px 420px at 8% 105%, rgba(63,191,143,.05), transparent 60%);
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:rgba(124,108,255,.35)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#20242e;border-radius:8px;border:3px solid var(--bg)}

/* ── layout ─────────────────────────────────────────────── */
.wrap{max-width:920px;margin:0 auto;padding:28px 22px 120px}
.wide{max-width:1120px}
header.top{
  position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);
  background:rgba(8,9,11,.78);border-bottom:1px solid var(--line);
}
.top-in{max-width:1120px;margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:14px}
.brand{display:flex;align-items:center;gap:9px;font-weight:650;letter-spacing:-.02em}
.brand .dot{width:9px;height:9px;border-radius:3px;background:var(--ac);box-shadow:0 0 14px var(--ac)}
.brand small{color:var(--tx3);font-weight:450;letter-spacing:0}
.top nav{margin-left:auto;display:flex;gap:2px;flex-wrap:wrap}
.top nav a{padding:6px 11px;border-radius:8px;color:var(--tx2);font-size:13.5px;font-weight:500}
.top nav a:hover{background:var(--surface);color:var(--tx)}
.top nav a.on{background:var(--acdim);color:var(--ac2)}

/* ── tipografia ─────────────────────────────────────────── */
h1{font-size:26px;font-weight:660;letter-spacing:-.028em;margin:0 0 4px}
h2{font-size:17px;font-weight:620;letter-spacing:-.02em;margin:0 0 12px}
h3{font-size:14px;font-weight:600;margin:0 0 8px}
.eyebrow{font-size:11px;font-weight:640;letter-spacing:.12em;text-transform:uppercase;color:var(--tx3);margin-bottom:10px}
.muted{color:var(--tx2)}.dim{color:var(--tx3)}
.big{font-size:34px;font-weight:680;letter-spacing:-.035em;line-height:1.1}

/* ── superfícies ────────────────────────────────────────── */
.card{background:linear-gradient(180deg,var(--surface),var(--bg2));border:1px solid var(--line);border-radius:var(--r);padding:18px}
.card.pad{padding:22px}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:760px){.g2,.g3,.g4{grid-template-columns:1fr}}
.row{display:flex;gap:10px;align-items:center}
.between{justify-content:space-between}
.wrapf{flex-wrap:wrap}
.sp{height:22px}.sp-s{height:12px}

/* ── botões ─────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;border-radius:var(--r2);border:1px solid var(--line2);
  background:var(--surface2);font-weight:550;font-size:14px;
  transition:.15s ease; white-space:nowrap;
}
.btn:hover{background:#1a1f2a;border-color:#2d3444;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.pri{background:linear-gradient(180deg,#8878ff,#6a58f0);border-color:#8878ff;color:#fff;box-shadow:0 6px 20px rgba(106,88,240,.28)}
.btn.pri:hover{background:linear-gradient(180deg,#9587ff,#7867f5)}
.btn.ghost{background:transparent}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn.lg{padding:14px 22px;font-size:15.5px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn.danger{color:#ffb3ad;border-color:#3a2422}
.btn-tile{
  display:flex;flex-direction:column;align-items:flex-start;gap:5px;text-align:left;
  padding:16px 18px;border-radius:var(--r);border:1px solid var(--line);
  background:linear-gradient(180deg,var(--surface),var(--bg2));transition:.18s ease;width:100%;
}
.btn-tile:hover{border-color:#333b4d;transform:translateY(-2px);box-shadow:var(--sh)}
.btn-tile .t{font-weight:600;font-size:15px;display:flex;gap:9px;align-items:center}
.btn-tile .d{color:var(--tx3);font-size:12.5px;line-height:1.4}
.btn-tile .ic{font-size:16px;filter:saturate(.85)}

/* ── barras e chips ─────────────────────────────────────── */
.bar{height:6px;border-radius:99px;background:#171b23;overflow:hidden}
.bar > i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--ac),#5ee0b5);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.bar.thin{height:4px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:550;background:var(--surface2);border:1px solid var(--line2);color:var(--tx2)}
.chip.ok{color:#7de0b8;border-color:rgba(63,191,143,.28);background:rgba(63,191,143,.10)}
.chip.warn{color:#f0d182;border-color:rgba(227,179,65,.28);background:rgba(227,179,65,.10)}
.chip.bad{color:#ffa79f;border-color:rgba(226,87,76,.28);background:rgba(226,87,76,.10)}
.chip.ac{color:var(--ac2);border-color:rgba(124,108,255,.3);background:var(--acdim)}
.dotc{width:8px;height:8px;border-radius:99px;display:inline-block}
.c-ok{background:var(--ok)}.c-warn{background:var(--warn)}.c-bad{background:var(--bad)}.c-new{background:var(--new)}

/* ── métricas ───────────────────────────────────────────── */
.metric{padding:16px 18px}
.metric .k{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--tx3);font-weight:620}
.metric .v{font-size:27px;font-weight:670;letter-spacing:-.03em;margin-top:6px}
.metric .s{font-size:12px;color:var(--tx3);margin-top:2px}

/* ── listas ─────────────────────────────────────────────── */
.list{display:flex;flex-direction:column}
.item{display:flex;align-items:center;gap:12px;padding:11px 2px;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:0}
.item .nm{flex:1;min-width:0}
.item .nm b{font-weight:540;font-size:14px}
.item .nm .sub{font-size:12px;color:var(--tx3)}
.pct{font-variant-numeric:tabular-nums;font-weight:620;font-size:13.5px;min-width:44px;text-align:right}

/* ── modo de estudo ─────────────────────────────────────── */
.stage{max-width:760px;margin:0 auto}
.qbox{background:linear-gradient(180deg,#12151b,#0c0e13);border:1px solid var(--line2);border-radius:18px;padding:26px 26px 24px;box-shadow:var(--sh)}
.qbox .who{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ac2);font-weight:640;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.qbox .q{font-size:21px;line-height:1.45;font-weight:520;letter-spacing:-.02em}
.hintbox{margin-top:14px;padding:11px 14px;border-radius:10px;background:rgba(227,179,65,.07);border:1px solid rgba(227,179,65,.18);color:#e8cf94;font-size:13.5px}

.mic{
  width:112px;height:112px;border-radius:99px;display:grid;place-items:center;
  background:linear-gradient(180deg,#8878ff,#6a58f0);border:0;font-size:38px;
  box-shadow:0 10px 40px rgba(106,88,240,.35);transition:.2s;margin:0 auto;
}
.mic:hover{transform:scale(1.04)}
.mic.rec{background:linear-gradient(180deg,#f2645a,#d13f34);box-shadow:0 0 0 0 rgba(226,87,76,.55);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(226,87,76,.5)}70%{box-shadow:0 0 0 26px rgba(226,87,76,0)}100%{box-shadow:0 0 0 0 rgba(226,87,76,0)}}
.wave{display:flex;align-items:center;justify-content:center;gap:3px;height:36px}
.wave i{width:3px;border-radius:9px;background:linear-gradient(180deg,var(--ac2),var(--ac));height:6px;transition:height .1s}
.timer{font-family:var(--mono);font-size:13px;color:var(--tx3);font-variant-numeric:tabular-nums}
.live{min-height:64px;padding:14px 16px;border-radius:12px;background:var(--surface);border:1px solid var(--line);font-size:15px;line-height:1.6}
.live.empty{color:var(--tx3)}
.live .interim{color:var(--tx3)}

/* ── feedback ───────────────────────────────────────────── */
.score-ring{display:flex;align-items:center;gap:16px}
.ring{--p:0;width:82px;height:82px;border-radius:99px;display:grid;place-items:center;
  background:conic-gradient(var(--ac) calc(var(--p)*1%), #191d26 0);position:relative;flex:none}
.ring::after{content:'';position:absolute;inset:7px;border-radius:99px;background:var(--bg2)}
.ring b{position:relative;z-index:1;font-size:21px;font-weight:670;letter-spacing:-.03em}
.fb-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px}
.fb-list li{display:flex;gap:9px;font-size:14px;line-height:1.5;align-items:flex-start}
.fb-list li .s{flex:none;width:16px;text-align:center;font-weight:700}
.s-ok{color:var(--ok)}.s-miss{color:var(--warn)}.s-bad{color:var(--bad)}
.alert{padding:12px 15px;border-radius:11px;font-size:13.5px;line-height:1.5;border:1px solid}
.alert.warn{background:rgba(227,179,65,.08);border-color:rgba(227,179,65,.22);color:#f0d798}
.alert.bad{background:rgba(226,87,76,.08);border-color:rgba(226,87,76,.22);color:#ffb0a8}
.alert.ok{background:rgba(63,191,143,.08);border-color:rgba(63,191,143,.22);color:#8fe3c1}

/* ── quiz ───────────────────────────────────────────────── */
.opt{
  display:flex;gap:13px;align-items:flex-start;width:100%;text-align:left;
  padding:13px 15px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);transition:.13s;margin-bottom:8px;line-height:1.5;font-size:14.5px;
}
.opt:hover{border-color:#394052;background:var(--surface2)}
.opt .l{flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;background:#1a1f2a;font-size:12px;font-weight:660;color:var(--tx2)}
.opt.sel{border-color:var(--ac);background:var(--acdim)}
.opt.sel .l{background:var(--ac);color:#fff}
.opt.right{border-color:rgba(63,191,143,.5);background:rgba(63,191,143,.10)}
.opt.right .l{background:var(--ok);color:#04140e}
.opt.wrong{border-color:rgba(226,87,76,.5);background:rgba(226,87,76,.09)}
.opt.wrong .l{background:var(--bad);color:#fff}
.opt:disabled{cursor:default;transform:none}
.qhead{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--tx3);margin-bottom:14px}

/* ── mapa ───────────────────────────────────────────────── */
.tree{display:flex;flex-direction:column;gap:8px}
.node{display:flex;align-items:center;gap:12px;padding:12px 15px;border-radius:12px;border:1px solid var(--line);background:var(--surface);cursor:pointer;transition:.14s}
.node:hover{border-color:#333b4d;transform:translateX(2px)}
.node .nm{flex:1;min-width:0}
.node .nm b{font-weight:550}
.node .barw{width:130px}
@media(max-width:640px){.node .barw{width:70px}}

/* ── comparações ────────────────────────────────────────── */
.vs{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:stretch}
@media(max-width:700px){.vs{grid-template-columns:1fr;gap:8px}}
.vs .col{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:15px}
.vs .col .lb{font-weight:640;font-size:13.5px;letter-spacing:-.01em}
.vs .col .tg{font-size:11.5px;color:var(--ac2);margin:3px 0 9px;font-weight:550}
.vs .col ul{margin:0;padding-left:16px;font-size:13.5px;color:var(--tx2);line-height:1.65}
.vs .mid{display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--tx3);letter-spacing:.1em}
.disc{margin-top:11px;padding:11px 14px;border-radius:10px;background:var(--acdim);border:1px solid rgba(124,108,255,.2);font-size:13.5px;color:#cfc9ff}

/* ── diversos ───────────────────────────────────────────── */
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;
  background:#171b23;border:1px solid var(--line2);padding:11px 18px;border-radius:12px;font-size:13.5px;
  box-shadow:var(--sh);transition:.25s;z-index:99;pointer-events:none;max-width:90vw}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.spin{width:15px;height:15px;border:2px solid var(--line2);border-top-color:var(--ac);border-radius:99px;animation:sp .7s linear infinite;display:inline-block}
@keyframes sp{to{transform:rotate(360deg)}}
.load{display:flex;align-items:center;gap:10px;color:var(--tx3);font-size:13.5px;padding:22px 0;justify-content:center}
input[type=text],input[type=password],input[type=number],select,textarea{
  background:var(--surface);border:1px solid var(--line2);color:var(--tx);
  padding:10px 13px;border-radius:10px;font-family:inherit;font-size:14px;width:100%}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--ac)}
label{font-size:12.5px;color:var(--tx2);display:block;margin-bottom:6px;font-weight:520}
kbd{font-family:var(--mono);font-size:11px;background:#1a1f2a;border:1px solid var(--line2);border-bottom-width:2px;padding:1px 5px;border-radius:5px;color:var(--tx2)}
.fade{animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.xp{position:fixed;top:70px;right:24px;background:rgba(63,191,143,.12);border:1px solid rgba(63,191,143,.3);
  color:#8fe3c1;padding:9px 15px;border-radius:11px;font-size:13.5px;font-weight:560;z-index:60;
  transform:translateX(30px);opacity:0;transition:.3s}
.xp.on{transform:none;opacity:1}
.sticky-bar{position:fixed;left:0;right:0;bottom:0;background:rgba(8,9,11,.9);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);padding:12px 22px;z-index:50}
.sticky-in{max-width:920px;margin:0 auto;display:flex;gap:10px;align-items:center;justify-content:space-between}

/* ══════════════════════════════════════════════════════════════
   SHELL COM MENU LATERAL
   ══════════════════════════════════════════════════════════════ */
.shell{display:grid;grid-template-columns:236px 1fr;min-height:100vh}
.side{
  position:sticky;top:0;height:100vh;overflow-y:auto;
  border-right:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,18,22,.92),rgba(8,9,11,.92));
  backdrop-filter:blur(12px);
  padding:20px 12px 16px;display:flex;flex-direction:column;gap:4px;
}
.side::-webkit-scrollbar{width:6px}
.side-brand{display:flex;align-items:center;gap:10px;padding:2px 10px 16px;font-weight:650;letter-spacing:-.02em;font-size:16px}
.side-brand .mark{width:26px;height:26px;border-radius:8px;flex:none;display:grid;place-items:center;
  background:linear-gradient(160deg,#8878ff,#5a48d8);color:#fff;font-size:13px;font-weight:700;
  box-shadow:0 4px 14px rgba(106,88,240,.4)}
.side-brand small{display:block;color:var(--tx3);font-weight:450;font-size:11px;letter-spacing:0;margin-top:-2px}
.side-group{font-size:10px;font-weight:660;letter-spacing:.13em;text-transform:uppercase;color:var(--tx3);
  padding:16px 10px 6px}
.side a.nav{
  display:flex;align-items:center;gap:11px;padding:8px 10px;border-radius:9px;
  color:var(--tx2);font-size:13.5px;font-weight:500;transition:.13s;position:relative
}
.side a.nav svg{width:17px;height:17px;flex:none;stroke:currentColor;stroke-width:1.7;fill:none;
  stroke-linecap:round;stroke-linejoin:round;opacity:.85}
.side a.nav:hover{background:var(--surface2);color:var(--tx)}
.side a.nav.on{background:var(--acdim);color:var(--ac2)}
.side a.nav.on svg{opacity:1}
.side a.nav .badge{margin-left:auto;font-size:10.5px;font-weight:640;padding:1px 7px;border-radius:99px;
  background:rgba(226,87,76,.16);color:#ffa79f}
.side-foot{margin-top:auto;padding:14px 10px 4px;border-top:1px solid var(--line)}
.side-foot .lbl{font-size:10.5px;color:var(--tx3);text-transform:uppercase;letter-spacing:.1em;font-weight:640}
.side-foot .val{font-size:20px;font-weight:670;letter-spacing:-.03em;margin:4px 0 7px}
.mainpane{min-width:0}

@media(max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{position:sticky;top:0;height:auto;flex-direction:row;overflow-x:auto;overflow-y:hidden;
    padding:9px 10px;gap:4px;align-items:center;border-right:0;border-bottom:1px solid var(--line);z-index:40}
  .side-brand{padding:0 10px 0 4px;font-size:14px}
  .side-brand small{display:none}
  .side-group,.side-foot{display:none}
  .side a.nav{padding:7px 10px;white-space:nowrap;font-size:12.5px}
  .wrap{padding:20px 16px 100px}
}
.btn-tile .t svg{width:17px;height:17px;stroke:var(--ac2);stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}
.chip svg{width:13px;height:13px;stroke:currentColor;stroke-width:1.8;fill:none}

/* a coluna do menu precisa pintar a página inteira, não só a primeira dobra */
@media(min-width:901px){
  .shell{background:linear-gradient(90deg,#0d1014 0 235px,var(--line) 235px 236px,transparent 236px)}
  .side{border-right:0;background:linear-gradient(180deg,rgba(15,18,22,.6),rgba(11,13,17,.6))}
}