/* Paleta da Adalove (cinza-claro, roxo-escuro, vermelho-coral, Poppins). Folha de prova: barra fixa com blocos + cronômetro, questões (recortes dos cadernos) em coluna única, folha de respostas no rodapé */
:root{
  --bg:#f3f3f3; --paper:#ffffff; --ink:#2e2640; --muted:#5e586b; --line:#e2dfe8;
  --accent:#ff4545; --accent-ink:#ffffff; --sel:#2e2640; --sel-ink:#ffffff;
  --bar:#2d253f; --bar-ink:#ffffff; --bar-line:rgba(255,255,255,.22);
  --discard:#b26a00; --discard-bg:#fff4e2;
  --ok:#1d7a46; --ok-bg:#e5f4ea; --bad:#c62828; --bad-bg:#fdecea;
  --display:"Poppins",system-ui,sans-serif;
  --body:"Poppins",system-ui,sans-serif;
  --mono:"Poppins",system-ui,sans-serif;
  --ui:"Poppins",system-ui,sans-serif;
  color-scheme:light; /* padrão claro, como a Adalove (fundo #F3F3F3); o escuro só entra pelo botão de tema */
}
:root[data-theme="dark"]{
  --bg:#17131f; --paper:#221c2f; --ink:#eeeaf5; --muted:#aaa3b9; --line:#3a3250;
  --accent:#ff5a5a; --accent-ink:#ffffff; --sel:#eeeaf5; --sel-ink:#2e2640;
  --bar:#120f19; --bar-ink:#ffffff; --bar-line:rgba(255,255,255,.18);
  --discard:#f0b155; --discard-bg:#2e2412;
  --ok:#6fd39a; --ok-bg:#12291c; --bad:#ff8a80; --bad-bg:#33171a; color-scheme:dark}

/* ---------- base ---------- */
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 var(--body)}
h1,h2{font-family:var(--display);text-wrap:balance;line-height:1.1;margin:0}
h1{font-size:clamp(2rem,6vw,2.8rem);font-weight:700}
h2{font-size:1.4rem;font-weight:600}
button{font:600 .95rem var(--ui);border-radius:8px;cursor:pointer;padding:10px 18px;border:1px solid var(--line);background:var(--paper);color:var(--ink)}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* ---------- layout e textos comuns ---------- */
.wrap{max-width:820px;margin:0 auto;padding-inline:16px;padding-block:24px 32px}
.stack{display:grid;gap:20px}
.wrap.exam{max-width:920px;padding-block:12px 96px}
.exam .qs{margin-top:0}
/* início: escolha da prova à esquerda, tentativas e equivalência à direita; uma coluna em telas estreitas */
.wrap.home{max-width:1200px}
/* as duas colunas terminam na mesma altura: o cartão mais curto estica até o fim do outro lado */
.cols,.side{display:grid;gap:20px;min-width:0}
@media (min-width:960px){.cols{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.top-actions{display:flex;gap:8px;align-items:flex-start;flex-wrap:wrap}
.eyebrow{font:600 .75rem var(--ui);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.sheet{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px;display:grid;grid-template-columns:minmax(0,1fr);gap:16px;align-content:start;min-width:0}
/* coluna minmax(0,1fr): sem ela a coluna auto não encolhe abaixo da tabela mais larga e o cartão vaza da tela */
.rules{margin:0;padding-left:1.2em;display:grid;gap:6px}
.note{font:.85rem/1.5 var(--ui);color:var(--muted);margin:0}
.scroll{overflow-x:auto}
.elim{margin:0;padding:12px 14px;border-radius:10px;background:var(--bad-bg);color:var(--bad);font:.92rem/1.5 var(--ui)}
.credit{display:grid;justify-items:center;gap:10px;font:.85rem/1.5 var(--ui);color:var(--muted);text-align:center;padding-block:8px 0}
.credit a{color:var(--accent);font-weight:600;text-decoration:none}
.credit a:hover,.credit a:focus-visible{text-decoration:underline}
.theme{font-size:.8rem;padding:6px 12px;border-radius:99px;white-space:nowrap}

/* ---------- início: escolha da prova, histórico e equivalência ---------- */
.provas{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.prova{text-align:left;display:grid;gap:4px;padding:14px 16px}
.prova b{font:600 1.1rem var(--display)}
.prova span{font:400 .82rem var(--ui);color:var(--muted)}
.prova[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent) inset}
.hist{width:100%;border-collapse:collapse;font:.88rem var(--ui);font-variant-numeric:tabular-nums}
.hist th{font:600 .7rem var(--ui);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}
.hist td{padding:8px;border-bottom:1px solid var(--line)}
.hist td.n{font-weight:600}
.hist .bad{color:var(--bad)}
.hist .ver{padding:4px 12px;font-size:.8rem}
.hist .del{padding:4px 9px;margin-left:6px;font-size:.8rem;color:var(--muted)}
.hist .del.armed{background:var(--accent);border-color:var(--accent);color:#fff}
.hist-head{display:flex;justify-content:space-between;align-items:center;gap:8px}
.pager{display:flex;align-items:center;gap:8px;margin-left:auto;font:500 .8rem var(--ui);color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.pager button{width:28px;height:28px;padding:0;border-radius:50%;font-size:1rem;line-height:1}
.pager button:disabled{opacity:.35;cursor:default}
.hist .num{text-align:right}
.hist tr.hit td{background:var(--ok-bg);color:var(--ok);font-weight:600}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{padding:8px 16px;border-radius:99px}
.seg button[aria-pressed="true"]{background:var(--sel);border-color:var(--sel);color:var(--sel-ink)}
.enem-in{display:grid;gap:6px;font:600 .85rem var(--ui);color:var(--muted);max-width:260px}
.enem-in input{font:600 1.1rem var(--ui);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}
.ib-in{display:flex;gap:12px;flex-wrap:wrap}
.enem-in select{font:600 1rem var(--ui);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}
.enem-in select:focus-visible,.enem-in input:focus-visible{outline:3px solid var(--accent);outline-offset:1px}

/* ---------- prova: barra do topo ---------- */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:3;background:var(--bar);color:var(--bar-ink)}
.bar .in{max-width:920px;margin:0 auto;padding:6px 16px;display:flex;align-items:center;gap:6px 12px;flex-wrap:wrap}
.blocks{display:flex;gap:4px;flex:0 1 auto;min-width:0}
.blk{flex:1;font:600 .68rem var(--ui);letter-spacing:.06em;text-transform:uppercase;text-align:center;padding:5px 10px;border-radius:8px;border:1px solid var(--bar-line);color:rgba(255,255,255,.65);white-space:nowrap}
.blk.now{border-color:var(--accent);background:var(--accent);color:#fff}
button.blk{cursor:pointer;background:transparent;padding:5px 10px}
button.blk:hover{border-color:#fff;color:#fff}
button.blk.now{background:var(--accent);border-color:var(--accent);color:#fff}
.blk.done{background:var(--bar-line);color:#fff}
/* bolinhas de status das questões do bloco: verde respondida, laranja descartada, branca vazia */
.dots{display:flex;gap:5px;flex-wrap:wrap;flex:1 1 auto;min-width:0}
.dot{width:26px;height:26px;border-radius:50%;padding:0;font:600 .72rem var(--ui);display:grid;place-items:center;border:1.5px solid rgba(255,255,255,.55);background:#fff;color:#2e2640}
.dot.ans{background:#22a05a;border-color:#22a05a;color:#fff}
.dot.off{background:#f28c28;border-color:#f28c28;color:#fff}
.dot.cur{box-shadow:0 0 0 2px var(--bar),0 0 0 4px #fff}
.trocas{font:600 .75rem var(--ui);color:#ffb4a8}
.trocas:empty{display:none}
.timer{font:600 1.1rem var(--mono);font-variant-numeric:tabular-nums}
.timer.low{color:#ff8a8a}
.bar .end.armed{background:var(--accent);border-color:var(--accent);color:#fff}
.bar .theme{background:transparent;border-color:var(--bar-line);color:var(--bar-ink)}

/* ---------- prova: questão ---------- */
.qs{display:grid;gap:20px;margin-top:16px}
.q{background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:grid}
.q{scroll-margin-top:120px}
.q.off{border-color:var(--discard)}
.q.off .page{opacity:.35}
.qh{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:0 8px;padding:8px 16px;border-bottom:1px solid var(--line)}
.qn{font:500 .85rem var(--mono);color:var(--muted)}
/* o recorte é sempre papel branco, também no tema escuro */
.page{position:relative;background:#fff;width:100%;container-type:inline-size}
.page img{display:block;width:100%;height:auto}
.page{overflow:hidden;margin-inline:auto}
.page.zoom img{width:calc(100% / var(--zw));max-width:none;margin-left:calc(-100% * var(--zl) / var(--zw))}
@media (max-width:760px){.page{cursor:zoom-in}}
/* questão ampliada: tela cheia, arrasta com o dedo nas duas direções */
dialog.viewer{width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:#fff}
dialog.viewer::backdrop{background:#fff}
.viewer-in{height:100%;overflow:auto;padding-bottom:72px}
.viewer .page{margin:0}
.viewer .badge{pointer-events:none}
.viewer-bar{position:fixed;left:50%;bottom:calc(16px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);display:flex;gap:8px;padding:6px;border-radius:99px;background:var(--bar);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.viewer-bar button{background:transparent;border-color:var(--bar-line);color:var(--bar-ink);border-radius:99px;min-width:44px}
.dica-girar{display:none}
@media (max-width:560px) and (orientation:portrait){.dica-girar{display:flex;align-items:center;gap:8px;margin:0 0 10px;padding:8px 8px 8px 14px;border-radius:10px;background:var(--paper);border:1px solid var(--line);font:.85rem/1.4 var(--ui);color:var(--muted)}.dica-girar button{margin-left:auto;padding:4px 10px;flex:none}}
/* letras escalam com o recorte para acompanhar o espaçamento das linhas */
.badge{position:absolute;transform:translate(calc(-100% - .8cqw),-10%);width:2.4cqw;height:2.4cqw;border-radius:50%;padding:0;border:max(1px,.17cqw) solid #2e2640;background:#fff;color:#2e2640;font:700 1.4cqw/1 var(--ui);display:grid;place-items:center}
.badge.on{background:#2e2640;color:#fff}
.badge.right{border-color:#1d7a46;background:#1d7a46;color:#fff}
.badge.wrong{border-color:#b3261e;background:#b3261e;color:#fff}
.answers{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:8px 16px;border-top:1px solid var(--line)}
.opt{width:42px;height:42px;padding:0;border-radius:50%;font:700 .95rem var(--ui)}
.opt[aria-pressed="true"]{background:var(--sel);border-color:var(--sel);color:var(--sel-ink)}
.nav{display:flex;gap:8px;flex-wrap:wrap}
.nav button:disabled{opacity:.4;cursor:default}
.foot button{padding:8px 16px}
.foot #send.armed{background:var(--bar);border-color:var(--bar);color:var(--bar-ink)}
.disc.on{border-color:var(--discard);color:var(--discard);background:var(--discard-bg)}
@media (prefers-reduced-motion:no-preference){.q{transition:border-color .15s}}

/* ---------- prova: rodapé ---------- */
.foot{position:fixed;left:0;right:0;bottom:0;background:var(--paper);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px);z-index:3}
.foot .in{max-width:920px;margin:0 auto;padding:8px 16px;display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}

/* ---------- resultado ---------- */
.score{display:flex;gap:24px;flex-wrap:wrap;align-items:baseline}
.verdict{margin:0;font:1rem/1.5 var(--ui)}
.verdict b{display:block;font:700 1.3rem/1.3 var(--display);margin-bottom:2px}
.big{font:700 3.5rem/1 var(--display)}
.kv{font:.9rem var(--ui);color:var(--muted)}
.kv b{color:var(--ink);font-variant-numeric:tabular-nums}
.chip{font:600 .72rem var(--ui);letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:99px}
.chip.ok{background:var(--ok-bg);color:var(--ok)}
.chip.bad{background:var(--bad-bg);color:var(--bad)}
.chip.new{border:1px solid var(--line);color:var(--muted);padding:2px 9px}
.qh-l{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px}
.chip.off{background:var(--discard-bg);color:var(--discard)}
.trk{font:600 .7rem var(--ui);letter-spacing:.08em;text-transform:uppercase;padding:2px 8px;border-radius:99px;border:1px solid currentColor;color:var(--muted)}
.res{font:.9rem var(--ui);padding:12px 16px;border-top:1px solid var(--line);display:grid;gap:10px}
details summary{cursor:pointer;color:var(--accent);font-weight:600}
/* letras da linha de resposta com as cores das marcas na imagem: verde a correta, vermelho a sua quando errou */
.res b.ok{color:var(--ok)}
.res b.bad{color:var(--bad)}
.res b.lenta{color:var(--discard)}
/* assuntos com erro na tentativa: etiquetas que quebram linha */
.assuntos{display:grid;gap:8px}
.assuntos ul{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.assuntos li{font:.85rem var(--ui);padding:4px 12px;border-radius:99px;background:var(--bad-bg);color:var(--bad)}
.assuntos li b{font-weight:600}
/* errata ou esclarecimento escrito à mão (NOTAS em regras.js) */
.errata{margin:0;padding:10px 16px;border-top:1px solid var(--line);background:var(--discard-bg);color:var(--ink);font:.88rem/1.5 var(--ui)}
details .errata{margin-top:10px;border:0;border-radius:8px}
details .page{margin-top:10px;border:1px solid var(--line)}

/* ---------- diálogos: boas-vindas e feedback ---------- */
dialog.welcome{max-width:min(460px,calc(100vw - 32px));max-height:calc(100dvh - 24px);overflow:auto;border:0;border-radius:18px;padding:22px 24px;background:var(--paper);color:var(--ink);box-shadow:0 24px 60px rgba(20,14,35,.35);display:grid;gap:10px}
dialog.welcome::backdrop{background:rgba(26,20,40,.55);backdrop-filter:blur(2px)}
dialog.welcome form{display:grid;gap:10px}
dialog.welcome h2{font-size:1.3rem}
dialog.welcome .rules{gap:2px;font:.9rem/1.45 var(--ui)}
dialog.welcome p{margin:0;font:.9rem/1.5 var(--ui)}
dialog.welcome .by{font-size:.85rem;color:var(--muted)}
dialog.welcome .by a{color:var(--accent);font-weight:600}
dialog.welcome textarea{font:.95rem/1.5 var(--ui);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);resize:vertical;min-height:110px}
dialog.welcome textarea:focus-visible{outline:3px solid var(--accent);outline-offset:1px}
.fb-tipos{display:flex;flex-wrap:wrap;gap:6px;border:0;padding:0;margin:0}
.fb-tipos label{font:600 .85rem var(--ui);padding:6px 12px;border:1px solid var(--line);border-radius:99px;cursor:pointer}
.fb-tipos label:has(input:checked){background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.fb-tipos input{position:absolute;opacity:0;pointer-events:none}
.fb-tipos label:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:2px}
.fb-acts{display:flex;gap:8px;justify-content:flex-end}
button.fb-link{justify-self:start;background:none;border:0;padding:0;font-size:.85rem;color:var(--muted);text-decoration:underline}
dialog.welcome #welcome-ok{width:100%;margin-top:4px}
@media (prefers-reduced-motion:no-preference){dialog.welcome[open]{animation:welcome-in .25s ease-out}}
@keyframes welcome-in{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}

/* ---------- botão de estrela do GitHub e mascote ---------- */
.star-wrap{display:grid;justify-items:center;gap:2px}
.plea{font:500 .72rem var(--ui);color:var(--muted)}
a.star{display:inline-flex;align-items:center;gap:8px;font:600 .8rem var(--ui);color:var(--ink);text-decoration:none;padding:6px 12px;border:1px solid var(--line);border-radius:99px;background:var(--paper)}
a.star:hover,a.star:focus-visible{border-color:#e3a008;text-decoration:none}
a.star>span:first-child{color:#e3a008;font-size:1.05rem}
a.star .count{font-variant-numeric:tabular-nums;padding-left:8px;border-left:1px solid var(--line);color:var(--muted)}
a.star .count:empty{display:none}
a.star.done{border-color:#e3a008}
@keyframes star-pop{0%{transform:scale(1)}40%{transform:scale(1.7) rotate(-25deg)}100%{transform:scale(1) rotate(0)}}
a.star.pop>span:first-child{display:inline-block;animation:star-pop .6s ease}
.spark{position:fixed;pointer-events:none;color:#e3a008;font-size:15px;line-height:1;z-index:10;animation:spark .8s ease-out forwards}
@keyframes spark{to{transform:translate(var(--dx),var(--dy)) scale(.3) rotate(140deg);opacity:0}}
@media (prefers-reduced-motion:reduce){.spark{display:none}a.star.pop>span:first-child{animation:none}}
.mascot{position:relative;display:inline-block;width:30px;height:30px;margin:-6px 0}
.mascot svg{width:30px;height:30px;transform-origin:50% 85%;animation:dance .9s ease-in-out infinite}
.mascot i{position:absolute;right:-8px;top:-6px;font-style:normal;font-size:.8rem;color:#e3a008;animation:note 1.8s ease-in-out infinite}
@keyframes dance{0%,100%{transform:translateY(0) rotate(-12deg)}25%{transform:translateY(-4px) rotate(0) scale(1.06,.94)}50%{transform:translateY(0) rotate(12deg)}75%{transform:translateY(-4px) rotate(0) scale(1.06,.94)}}
@keyframes note{0%{transform:translate(0,4px);opacity:0}30%{opacity:1}100%{transform:translate(6px,-10px);opacity:0}}
@media (prefers-reduced-motion:reduce){.mascot svg,.mascot i{animation:none}}

/* ---------- celular ---------- */
@media (max-width:560px){
  .sheet{padding:16px}
  /* prova: barra em 2 linhas (blocos + cronômetro; bolinhas + encerrar) e rodapé em 1; tema só fora da prova */
  .lg{display:none}
  .bar .in{gap:6px 8px}
  .blocks{order:1;flex:1 1 auto}
  .blk{padding:5px 6px;letter-spacing:0}
  .timer{order:2}
  .dots{order:3;gap:4px}
  .dot{width:24px;height:24px}
  .bar .end{order:4}
  .trocas{order:5;flex-basis:100%}
  .bar [data-toggle-theme]{display:none}
  .foot .in{gap:8px}
  .foot .nav{gap:6px;flex-wrap:nowrap}
  .foot button{padding:8px 10px;font-size:.85rem}
  #send{flex:1}
}

/* celular deitado: barras e rodapé finos para sobrar altura para a questão */
@media (orientation:landscape) and (max-height:500px){
  .bar .in{padding:4px 16px}
  .bar [data-toggle-theme],.lg{display:none}
  .blk{padding:4px 8px;letter-spacing:0}
  .dot{width:22px;height:22px}
  .timer{font-size:1rem}
  .foot .in{padding:4px 16px}
  .foot button{padding:6px 12px}
  .qh{padding:4px 12px}
  .answers{padding:4px 12px}
  .opt{width:36px;height:36px}
  .wrap.exam{padding-block:6px 56px}
}

/* tentativas: em espaço estreito (celular ou coluna lateral do desktop) cada linha vira um cartão:
   prova, nota e Ver em cima; data, acertos, tempo e saídas embaixo */
#hist{container-type:inline-size}
@container (max-width:560px){
  .tent thead{display:none}
  .tent tr{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 10px;padding:10px 0;border-bottom:1px solid var(--line)}
  .tent td{padding:0;border:0;color:var(--muted);font-size:.8rem}
  .tent td:nth-child(2){order:-2;flex:1;color:var(--ink);font-weight:600;font-size:.95rem}
  .tent td.n{order:-1;color:var(--ink);font-size:.95rem}
  .tent td:last-child{order:-1}
  .tent td:last-child:empty{display:none}
  .tent tr::after{content:"";order:-1;flex-basis:100%} /* quebra de linha depois de prova, nota e Ver */
  .tent td[data-l]::after{content:" " attr(data-l)}
}