:root{
  --bg:#0f1214; --card:#171b1f; --card2:#1e2429; --linha:#2a3238;
  --txt:#e9edf0; --txt2:#98a4ad; --txt3:#6b7780;
  --quente:#e8623c; --morno:#d9a441; --frio:#4a7fb5; --nunca:#4a5560;
  --ok:#3fa675; --alerta:#c9a227;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--txt);
  font:15px/1.5 ui-sans-serif,-apple-system,"Segoe UI",Roboto,sans-serif;
  padding-bottom:calc(64px + env(safe-area-inset-bottom));
  overflow-x:hidden;
}

#previa-bar{
  position:sticky;top:0;z-index:20;
  background:repeating-linear-gradient(45deg,#7a2d12,#7a2d12 12px,#8f3a1a 12px,#8f3a1a 24px);
  color:#ffe9df;font-size:11px;font-weight:700;letter-spacing:.06em;
  text-align:center;padding:7px 10px;text-transform:uppercase;
}
#previa-bar[hidden]{display:none}

#topo{
  padding:calc(18px + env(safe-area-inset-top)) 18px 12px;
  display:grid;grid-template-columns:auto 1fr;gap:0 12px;align-items:center;
  border-bottom:1px solid var(--linha);position:relative;
}
#topo h1{font-size:19px;font-weight:650;letter-spacing:-.02em;grid-column:2}
#topo #sub{grid-column:2;font-size:12.5px;color:var(--txt2)}
#voltar{
  grid-row:1/3;background:var(--card2);border:1px solid var(--linha);color:var(--txt);
  width:38px;height:38px;border-radius:11px;font-size:17px;cursor:pointer;
}
#voltar[hidden]{display:none}

main{padding:18px 18px 26px;max-width:720px;margin:0 auto}
h2{font-size:15px;font-weight:650;margin:24px 0 10px;letter-spacing:-.01em}
h2:first-child{margin-top:0}
p.lead{color:var(--txt2);font-size:13.5px;margin-bottom:14px}

.card{background:var(--card);border:1px solid var(--linha);border-radius:var(--r);padding:15px;margin-bottom:11px}
.card.tap{cursor:pointer;display:block;width:100%;text-align:left;color:inherit;font:inherit}
.card.tap:active{background:var(--card2)}

/* barra de temperatura por matéria */
.mat{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:9px}
.mat b{font-size:14.5px;font-weight:620}
.mat span{font-size:12px;color:var(--txt2);white-space:nowrap}
.termo{display:flex;height:9px;border-radius:5px;overflow:hidden;background:var(--linha)}
.termo i{display:block}
.termo i.q{background:var(--quente)} .termo i.m{background:var(--morno)}
.termo i.f{background:var(--frio)}   .termo i.n{background:var(--nunca)}
.leitura{margin-top:10px;font-size:13px;color:var(--txt2);line-height:1.55}

.legenda{display:flex;flex-wrap:wrap;gap:12px;font-size:11.5px;color:var(--txt2);margin:14px 0 4px}
.legenda em{font-style:normal;display:inline-flex;align-items:center;gap:5px}
.dot{width:9px;height:9px;border-radius:3px;display:inline-block}

/* nós */
.no{display:grid;grid-template-columns:auto 1fr auto;gap:11px;align-items:center;
    padding:11px 0;border-bottom:1px solid var(--linha)}
.no:last-child{border-bottom:0}
.no code{font-size:11px;color:var(--txt3);background:var(--card2);padding:3px 6px;border-radius:6px}
.no .rot{font-size:13.5px;line-height:1.35}
.no .num{font-size:11.5px;color:var(--txt2);text-align:right;white-space:nowrap}
.tag{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;
     padding:3px 7px;border-radius:6px;display:inline-block}
.t-quente{background:rgba(232,98,60,.16);color:#f08a68}
.t-morno{background:rgba(217,164,65,.16);color:#e0b45f}
.t-frio{background:rgba(74,127,181,.16);color:#7aa6d0}
.t-nunca{background:rgba(74,85,96,.22);color:#8b959d}

.aviso{background:rgba(201,162,39,.09);border:1px solid rgba(201,162,39,.3);
       border-radius:11px;padding:12px 13px;font-size:12.5px;color:#e0cd93;margin-bottom:12px}
.aviso b{color:#f0e2ae}

.vazio{text-align:center;padding:34px 14px}
.vazio .big{font-size:46px;margin-bottom:12px}
.vazio h3{font-size:17px;margin-bottom:9px;font-weight:620}
.vazio p{color:var(--txt2);font-size:13.5px;max-width:38ch;margin:0 auto 10px;line-height:1.6}
.contador{display:flex;gap:9px;justify-content:center;margin:18px 0 4px;flex-wrap:wrap}
.pill{background:var(--card2);border:1px solid var(--linha);border-radius:10px;padding:9px 13px;text-align:center;min-width:78px}
.pill b{display:block;font-size:19px;font-weight:660}
.pill span{font-size:10.5px;color:var(--txt2);text-transform:uppercase;letter-spacing:.05em}

/* questão */
.alt{display:block;width:100%;text-align:left;background:var(--card2);border:1px solid var(--linha);
     color:var(--txt);border-radius:11px;padding:12px 13px;margin-bottom:8px;font:inherit;font-size:13.5px;
     line-height:1.5;cursor:pointer}
.alt b{color:var(--txt2);margin-right:6px}
.alt.certa{border-color:var(--ok);background:rgba(63,166,117,.11)}
.alt.errada{border-color:#a8493a;background:rgba(168,73,58,.11)}
.enun{font-size:14.5px;line-height:1.62;margin-bottom:15px;white-space:pre-wrap}
.correcao{margin-top:14px;border-top:1px solid var(--linha);padding-top:14px}
.correcao h4{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--txt2);margin-bottom:7px}
.correcao ul{list-style:none;font-size:13px}
.correcao li{padding:4px 0 4px 14px;position:relative;color:var(--txt2)}
.correcao li::before{content:"§";position:absolute;left:0;color:var(--txt3)}
.nota-vig{background:rgba(201,162,39,.1);border-left:3px solid var(--alerta);
          padding:11px 13px;border-radius:0 9px 9px 0;font-size:12.5px;color:#e6d5a0;margin-top:11px}

#abas{
  position:fixed;left:0;right:0;bottom:0;display:flex;background:#12161a;
  border-top:1px solid var(--linha);padding-bottom:env(safe-area-inset-bottom);z-index:15;
}
#abas button{
  flex:1;background:none;border:0;color:var(--txt3);font:inherit;font-size:10.5px;
  padding:9px 4px 11px;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;
}
#abas button span{font-size:19px;line-height:1}
#abas button.on{color:var(--txt)}
.rodape{margin-top:26px;font-size:11.5px;color:var(--txt3);line-height:1.6;text-align:center}

/* progresso: cobertura do edital e sequência */
.progresso .mat{margin-bottom:8px}
.barra{height:10px;border-radius:6px;background:var(--linha);overflow:hidden}
.barra i{display:block;height:100%;background:linear-gradient(90deg,#3fa675,#5bc48f);
         border-radius:6px;transition:width .4s ease}
.streak{margin-top:10px;font-size:13px;color:#a9d8bf}
.streak b{color:#d6f0e2}
.no.visto code{background:rgba(63,166,117,.18);color:#7cc8a2}
.no.visto .rot::after{content:" ✓";color:var(--ok);font-size:12px}
.correcao .onde{font-size:12px;color:var(--txt2);margin-bottom:4px}