/* Site do aluno (De Questões). */

:root {
  --ink: #17191e;
  --muted: #5d6270;
  --bg: #f6f5f1;
  --surface: #ffffff;
  --line: #e4e1d9;
  --brand: #3346c9;
  --brand-soft: #eaedfb;
  --accent: #f3b33d;
  --ok: #17804a;
  --ok-bg: #e4f4ea;
  --bad: #c43131;
  --bad-bg: #fbe8e8;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(23 25 30 / 5%), 0 4px 16px rgb(23 25 30 / 4%);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; font-size: 16px; line-height: 1.5; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2 { line-height: 1.2; letter-spacing: -0.015em; }
.wrap { width: 100%; max-width: 980px; margin: 0 auto; padding: 0 16px; }
.main { padding-top: 20px; padding-bottom: 48px; min-height: 70vh; }
.muted { color: var(--muted); }

/* Cabeçalho */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.header-row { display: flex; align-items: center; gap: 16px; min-height: 60px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.logo { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-size: 1.1rem; letter-spacing: -0.01em; }
.logo:hover { text-decoration: none; }
.logo svg { width: 30px; height: 30px; }
.logo svg rect { fill: var(--brand); }
.logo svg path { fill: none; stroke: #fff; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.logo b { color: var(--brand); }
.search { flex: 1; min-width: 200px; }
.search input, .filters input, .filters select, .hero-search input {
  width: 100%; font: inherit; padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg);
}
.search input:focus, .filters input:focus, .filters select:focus, .hero-search input:focus { outline: 2px solid var(--brand); outline-offset: -1px; background: #fff; }
.header-nav a { color: var(--ink); font-weight: 600; }

/* Início */
.hero { text-align: center; padding: 28px 0 12px; }
.hero h1 { font-size: clamp(1.7rem, 5vw, 2.5rem); margin: 0 0 10px; }
.hero p { color: var(--muted); margin: 0 auto 22px; max-width: 560px; }
.hero-search { display: flex; gap: 8px; max-width: 560px; margin: 0 auto; }
.hero-search input { background: #fff; padding: 13px 18px; }
button, .button {
  font: inherit; font-weight: 700; padding: 11px 20px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--brand); color: #fff;
}
button:disabled { opacity: 0.45; cursor: default; }
.block { margin-top: 36px; }
.block h2 { font-size: 1.2rem; margin: 0 0 12px; }
.area-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.area-card {
  display: grid; gap: 4px; padding: 18px; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--ink); border-left: 6px solid var(--brand);
}
.area-card:hover { text-decoration: none; border-color: var(--brand); }
.area-card span { color: var(--muted); font-size: 0.9rem; }
.area-linguagens { border-left-color: #d0582a; }
.area-humanas { border-left-color: #a8702b; }
.area-natureza { border-left-color: #1f8a5b; }
.area-matematica { border-left-color: #3346c9; }
.edition-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; }
.edition-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.edition-year { display: block; margin-bottom: 10px; }
.edition-days { display: flex; gap: 8px; }
.edition-days a { flex: 1; text-align: center; padding: 8px; border-radius: 10px; background: var(--brand-soft); font-weight: 600; }
.edition-days a span { display: block; font-size: 0.75rem; color: var(--muted); font-weight: 500; }

/* Lista */
.page-title h1 { margin: 0 0 4px; font-size: 1.8rem; }
.page-title p { margin: 0 0 16px; }
.filters { display: grid; grid-template-columns: 2fr repeat(3, 1fr) auto; gap: 8px; margin-bottom: 18px; }
.question-cards { display: grid; gap: 12px; }
.question-card {
  display: grid; gap: 8px; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); color: var(--ink);
}
.question-card:hover { text-decoration: none; border-color: var(--brand); }
.card-meta { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; font-size: 0.9rem; color: var(--muted); }
.card-meta strong { color: var(--ink); }
.chip { font-size: 0.75rem; padding: 2px 9px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.excerpt { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; color: #33363d; }
.excerpt p { margin: 0; }
.empty { padding: 24px; text-align: center; color: var(--muted); }
.pager { display: flex; justify-content: center; gap: 18px; align-items: center; margin-top: 22px; }

/* Questão */
.crumbs { font-size: 0.85rem; color: var(--muted); margin-bottom: 10px; }
.crumbs a { color: var(--muted); }
.question-page { max-width: 760px; margin: 0 auto; }
.question-head h1 { margin: 0; font-size: 1.7rem; }
.question-head h1 small { font-size: 1rem; color: var(--muted); font-weight: 500; }
.question-meta { margin: 4px 0 16px; color: var(--muted); }
.question-body, .context {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px 22px;
}
.question-body .questao { font-size: 17px; }
.context { margin-bottom: 14px; }
.context summary { cursor: pointer; font-weight: 700; }
.context-body { margin-top: 12px; }
.context .questao { font-size: 16px; }
.question-body .alternativa {
  padding: 10px 12px; margin: 6px 0; border: 1px solid var(--line); border-radius: 12px;
  cursor: pointer; transition: border-color 0.15s, background 0.15s;
}
.question-body .alternativa:hover { border-color: var(--brand); }
.question-body .alternativa.escolhida { border-color: var(--brand); background: var(--brand-soft); }
.question-body .alternativa.escolhida .letra { background: var(--brand); }
.respondida .question-body .alternativa { cursor: default; }
.respondida .question-body .alternativa:hover { border-color: var(--line); }
.question-body .alternativa.correta { border-color: var(--ok); background: var(--ok-bg); }
.question-body .alternativa.correta .letra { background: var(--ok); }
.question-body .alternativa.errada { border-color: var(--bad); background: var(--bad-bg); }
.question-body .alternativa.errada .letra { background: var(--bad); }
.practice { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 14px 0; }
.feedback { margin: 0; padding: 10px 14px; border-radius: 12px; font-weight: 600; }
.feedback.ok { background: var(--ok-bg); color: var(--ok); }
.feedback.bad { background: var(--bad-bg); color: var(--bad); }
.feedback.neutral { background: var(--brand-soft); color: var(--ink); margin: 14px 0; }
.soon { display: grid; gap: 2px; padding: 14px 18px; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); margin: 18px 0 12px; }
.soon strong { color: var(--ink); }
.original { margin: 12px 0; }
.original summary { cursor: pointer; color: var(--brand); font-weight: 600; }
.original img { margin-top: 10px; max-width: 100%; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.booklets { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; color: var(--muted); font-size: 0.9rem; }
.booklet { padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); }
.booklet-azul { border-color: #7c9be8; }
.booklet-amarelo { border-color: #e8c35a; }
.booklet-branco { border-color: #c9c9c9; }
.booklet-rosa { border-color: #e89ac0; }
.booklet-cinza { border-color: #9aa0aa; }
.booklet-verde { border-color: #7cc49a; }
.question-nav { max-width: 760px; margin: 22px auto 0; display: flex; justify-content: space-between; align-items: center; gap: 12px; font-weight: 600; }
.question-nav a:first-child, .question-nav a:last-child { white-space: nowrap; }
.question-nav a:nth-child(2) { text-align: center; }

/* Prova (grade de números) */
.number-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 8px; }
.number-grid a {
  display: grid; place-items: center; aspect-ratio: 1; border-radius: 12px; background: var(--surface);
  border: 1px solid var(--line); font-weight: 700; color: var(--ink); box-shadow: var(--shadow); line-height: 1.1;
}
.number-grid a small { font-size: 0.65rem; color: var(--muted); font-weight: 600; }
.number-grid a:hover { border-color: var(--brand); text-decoration: none; color: var(--brand); }

.site-footer { border-top: 1px solid var(--line); background: var(--surface); color: var(--muted); font-size: 0.85rem; }
.site-footer p { margin: 0; padding: 18px 0; }

@media (max-width: 720px) {
  .header-nav { display: none; }
  .search { order: 3; flex-basis: 100%; }
  .filters { grid-template-columns: 1fr 1fr; }
  .filters input { grid-column: 1 / -1; }
  .question-body, .context { padding: 16px; border-radius: 12px; }
  .question-body .questao { font-size: 16px; }
  .hero-search { flex-direction: column; }
  .question-index span { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
}

/* Prova de um ano (índice por dia e área) */
.jump { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; margin: 0 0 8px; font-size: 0.9rem; }
.jump a { padding: 3px 10px; border-radius: 999px; background: var(--brand-soft); font-weight: 600; }
.jump-day { color: var(--muted); font-weight: 600; margin-left: 4px; }
.day h2 { margin: 28px 0 4px; font-size: 1.35rem; }
.day h3 { margin: 18px 0 8px; font-size: 1rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; scroll-margin-top: 80px; }
.day { scroll-margin-top: 70px; }
.question-index { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; }
.question-index a {
  display: flex; align-items: baseline; gap: 10px; padding: 9px 14px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; color: var(--ink);
}
.question-index a:hover { border-color: var(--brand); text-decoration: none; }
.question-index b { min-width: 2.2em; color: var(--brand); }
.question-index small { color: var(--muted); font-weight: 600; font-size: 0.75rem; }
.question-index span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #33363d; }
.edition-year { color: var(--ink); }