/* Atividades SchoolWork – mesmas cores e fonte do site principal */
@font-face { font-family: 'Montserrat'; font-style: normal; font-weight: 500 800; font-display: swap; src: url('/assets/fonts/montserrat-latin.woff2') format('woff2'); }
@font-face { font-family: 'Montserrat Fallback'; src: local('Arial'); size-adjust: 113%; ascent-override: 85%; descent-override: 22%; line-gap-override: 0%; }
:root {
  --yellow: #FFEA61; --yellow-soft: #FFF7C2;
  --mint: #72E7B2; --mint-soft: #DDF8EA;
  --coral: #F1454E; --coral-soft: #FDE3E4;
  --buy: #D92D37; --buy-hover: #B9222B;
  --lilac: #8486F6; --lilac-dark: #4F52D9; --lilac-soft: #E9E9FE;
  --teal: #2FCCD6; --teal-dark: #128C94; --teal-soft: #DDF6F7;
  --ok: #1E9E62; --ok-soft: #E2F7EC; --err: #C9303A; --err-soft: #FDE7E8;
  --ink: #252525; --text: #3d3d3d; --muted: #6b6b6b; --line: #e7e3d8;
  --bg: #ffffff; --bg-alt: #FFFBEA;
  --radius: 18px; --shadow: 0 6px 24px rgba(40, 30, 0, .08);
  --font: 'Montserrat', 'Montserrat Fallback', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.6; color: var(--text); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--lilac-dark); }
h1, h2, h3 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }
.center { text-align: center; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--lilac); outline-offset: 2px; }
.ic { display: inline-flex; width: 1.15em; height: 1.15em; flex: none; }
.ic svg { width: 100%; height: 100%; fill: currentColor; }
.print-only { display: none; }

/* botões */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; padding: .75em 1.3em; border-radius: 999px; border: 2px solid transparent; font-weight: 700; text-decoration: none; line-height: 1.2; transition: background .15s, transform .15s; text-align: center; font-size: .95rem; }
.btn:hover { transform: translateY(-1px); }
.btn-buy { background: var(--buy); color: #fff; box-shadow: 0 4px 14px rgba(217, 45, 55, .25); }
.btn-buy:hover { background: var(--buy-hover); }
.btn-kit { background: var(--lilac-dark); color: #fff; }
.btn-kit:hover { background: #3c3fc0; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { font-size: 1.05rem; padding: 1em 1.8em; }
.btn-sm { padding: .55em 1.1em; font-size: .88rem; }
.link { background: none; border: 0; padding: 0; color: var(--lilac-dark); font-weight: 600; font-size: .92rem; text-decoration: underline; text-underline-offset: 3px; }

/* cabeçalho */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header-in { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo img { width: 150px; }
.logo-tag { background: var(--yellow); color: var(--ink); font-weight: 800; font-size: .72rem; padding: .25em .6em; border-radius: 6px; text-transform: uppercase; letter-spacing: .04em; }
.menu { display: flex; align-items: center; gap: 22px; }
.menu a { color: var(--ink); font-weight: 600; text-decoration: none; font-size: .93rem; display: inline-flex; align-items: center; gap: .35em; }
.menu a:not(.btn):hover { color: var(--buy); }
.menu .btn { color: #fff; }
.menu-btn { display: none; background: none; border: 0; width: 44px; height: 44px; position: relative; }
.menu-btn span, .menu-btn span::before, .menu-btn span::after { position: absolute; left: 10px; width: 24px; height: 2.5px; background: var(--ink); border-radius: 2px; content: ''; transition: .2s; }
.menu-btn span { top: 21px; }
.menu-btn span::before { left: 0; top: -7px; }
.menu-btn span::after { left: 0; top: 7px; }
.menu-btn[aria-expanded="true"] span { background: transparent; }
.menu-btn[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.menu-btn[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }
@media (max-width: 860px) {
  .menu-btn { display: block; }
  .menu { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 16px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .menu.open { display: flex; }
  .menu a:not(.btn) { padding: 12px 4px; border-bottom: 1px solid var(--line); }
  .menu .btn { margin-top: 12px; }
}

.crumbs { font-size: .82rem; color: var(--muted); padding-top: 14px; padding-bottom: 4px; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--muted); }

/* seções */
.section { padding: 64px 0; }
.section-sm { padding: 28px 0 64px; }
.alt { background: var(--bg-alt); }
.h2 { font-size: clamp(1.45rem, 3vw, 2rem); font-weight: 800; text-align: center; margin-bottom: 1.1em; }
.page-head { padding: 28px 0 8px; }
.page-head h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; }
.page-head p { max-width: 720px; }

/* topo da home */
.hero { background: var(--yellow); padding: 56px 0 60px; }
.hero-in { text-align: center; max-width: 820px; }
.hero h1 { font-size: clamp(1.9rem, 5vw, 3rem); font-weight: 800; }
.hero-sub { font-size: 1.1rem; color: var(--ink); max-width: 640px; margin: 0 auto 26px; }
.hero-busca { display: flex; gap: 8px; background: #fff; padding: 8px; border-radius: 999px; box-shadow: var(--shadow); max-width: 640px; margin: 0 auto; }
.hero-busca input { flex: 1; min-width: 0; border: 0; padding: 0 16px; font-size: 1rem; background: transparent; }
.hero-busca input:focus { outline: none; }
.hero-n { margin: 16px 0 0; font-weight: 700; color: var(--ink); font-size: .9rem; }
@media (max-width: 520px) { .hero-busca { border-radius: 18px; flex-direction: column; } .hero-busca input { padding: 10px 12px; } }

.etapas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.etapa { border-radius: var(--radius); padding: 24px; position: relative; display: flex; flex-direction: column; }
.etapa h3 { font-size: 1.3rem; }
.etapa h3 a { color: var(--ink); text-decoration: none; }
.etapa h3 a::after { content: ' →'; }
.etapa p { flex: 1; }
.etapa-coral { background: var(--coral-soft); }
.etapa-lilac { background: var(--lilac-soft); }
.etapa-teal { background: var(--teal-soft); }
.etapa-n { font-size: .8rem; font-weight: 700; color: var(--muted); margin-top: 12px; }
@media (max-width: 860px) { .etapas { grid-template-columns: 1fr; } }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.chips-center { justify-content: center; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: #fff; border: 1.5px solid var(--line); color: var(--ink); text-decoration: none; padding: .38em .9em; border-radius: 999px; font-weight: 600; font-size: .86rem; }
.chip:hover { border-color: var(--ink); }
.chip small { color: var(--muted); font-weight: 700; }
.chip-on { background: var(--ink); color: #fff; border-color: var(--ink); }

.passos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.passos > div { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.passos span { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--yellow); font-weight: 800; color: var(--ink); margin-bottom: 10px; }
@media (max-width: 760px) { .passos { grid-template-columns: 1fr; } }

.series-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; margin: 18px 0; }
.serie-card { display: flex; flex-direction: column; background: #fff; border: 1.5px solid var(--line); border-radius: 14px; padding: 12px 14px; text-decoration: none; color: var(--ink); }
.serie-card:hover { border-color: var(--ink); }
.serie-card span { font-size: .78rem; color: var(--muted); }
.aviso-bncc { font-size: .8rem; color: var(--muted); border-left: 3px solid var(--line); padding-left: 10px; margin: 12px 0; max-width: 720px; }

/* filtros e cartões */
.filtros { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: flex-end; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; margin-bottom: 22px; }
.filtros label { display: flex; flex-direction: column; font-size: .76rem; font-weight: 700; color: var(--muted); gap: 4px; text-transform: uppercase; letter-spacing: .03em; }
.filtros select, .filtros input[type=search] { border: 1.5px solid var(--line); border-radius: 10px; padding: .5em .7em; background: #fff; color: var(--ink); font-size: .9rem; min-width: 160px; max-width: 100%; text-transform: none; }
.filtros .chk { flex-direction: row; align-items: center; gap: 6px; text-transform: none; font-size: .88rem; color: var(--ink); letter-spacing: 0; padding-bottom: 8px; }
.filtros .chk input { width: 18px; height: 18px; accent-color: var(--lilac-dark); }
.busca-local { flex: 1; min-width: 180px; }
@media (max-width: 520px) { .filtros label:not(.chk) { width: 100%; } .filtros select, .filtros input[type=search] { width: 100%; } }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.card { background: #fff; border: 1.5px solid var(--line); border-radius: var(--radius); padding: 18px 20px; display: flex; flex-direction: column; position: relative; transition: box-shadow .15s, border-color .15s; }
.card:hover { box-shadow: var(--shadow); border-color: #d6d0bf; }
.card h3 { font-size: 1.05rem; margin: 10px 0 6px; }
.card h3 a { color: var(--ink); text-decoration: none; }
.card h3 a::after { content: ''; position: absolute; inset: 0; }
.card p { font-size: .9rem; margin: 0 0 12px; flex: 1; color: var(--muted); }
.card-foot { display: flex; justify-content: space-between; gap: 8px; font-size: .76rem; font-weight: 700; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 10px; }
.card[hidden] { display: none; }
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: .72rem; font-weight: 700; padding: .25em .65em; border-radius: 6px; background: #f3f1ea; color: var(--ink); }
.tag-coral { background: var(--coral-soft); }
.tag-lilac { background: var(--lilac-soft); }
.tag-teal { background: var(--teal-soft); }
.tag-enem { background: var(--yellow); }
.tag-bncc { background: var(--mint-soft); }
.vazio { color: var(--muted); text-align: center; padding: 30px 0; }

.com-lateral { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; align-items: start; }
.lateral { position: sticky; top: 90px; display: flex; flex-direction: column; gap: 18px; }
@media (max-width: 980px) { .com-lateral { grid-template-columns: 1fr; } .lateral { position: static; } }

/* banners */
.banner { display: flex; gap: 16px; align-items: flex-start; background: var(--yellow-soft); border-radius: var(--radius); padding: 18px; border: 1.5px solid #f3e39a; }
.banner img { width: 86px; border-radius: 8px; box-shadow: 0 4px 12px rgba(0, 0, 0, .12); flex: none; }
.banner-sem-img { width: 70px; height: 70px; display: grid; place-items: center; font-size: 2rem; background: #fff; border-radius: 14px; flex: none; }
.banner strong { display: block; color: var(--ink); line-height: 1.25; margin: 2px 0 6px; }
.banner p { font-size: .84rem; margin: 0 0 12px; }
.banner-kicker { font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; color: var(--buy); }
.banners-home { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .banners-home { grid-template-columns: 1fr; } }

.temas-lista h2 { font-size: 1.15rem; margin-top: 1.4em; }

.news-form { display: flex; gap: 8px; max-width: 480px; margin: 0 auto; }
.news-form input { flex: 1; min-width: 0; border: 1.5px solid var(--line); border-radius: 999px; padding: .7em 1.1em; }
@media (max-width: 520px) { .news-form { flex-direction: column; } }

/* página da atividade */
.atividade-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 36px; align-items: start; padding-top: 10px; padding-bottom: 56px; }
@media (max-width: 980px) { .atividade-wrap { grid-template-columns: 1fr; } }
.at-head h1 { font-size: clamp(1.5rem, 4vw, 2.2rem); font-weight: 800; margin-top: 12px; }
.resumo { font-size: 1.02rem; }
.acoes { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 8px; }
.dica-acoes { font-size: .82rem; color: var(--muted); }
.bncc-info { font-size: .86rem; background: var(--mint-soft); border-radius: 12px; padding: 10px 14px; margin: 10px 0; }
.bncc-info summary { font-weight: 700; cursor: pointer; color: var(--ink); }
.bncc-info ul { margin: 8px 0 0; padding-left: 18px; }
.aluno-nome { display: none; background: var(--lilac-soft); border-radius: 14px; padding: 14px 16px; margin: 16px 0; }
.aluno-nome label { display: block; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.aluno-nome input { width: 100%; border: 1.5px solid var(--line); border-radius: 10px; padding: .6em .8em; background: #fff; }

.quiz { margin-top: 26px; }
.secao { border-top: 2px solid var(--line); padding: 24px 0 8px; }
.secao h2 { font-size: 1.25rem; display: flex; align-items: center; gap: 10px; }
.sec-n { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--yellow); font-size: .95rem; flex: none; }
.instr { font-weight: 600; color: var(--ink); }
.texto { background: var(--bg-alt); border-left: 4px solid var(--yellow); border-radius: 0 14px 14px 0; padding: 16px 20px; margin: 14px 0 18px; font-family: Georgia, 'Times New Roman', serif; font-size: 1.04rem; line-height: 1.7; color: var(--ink); }
.texto h3 { font-family: var(--font); font-size: 1.05rem; }
.texto p { margin: 0 0 .7em; }
.texto cite { display: block; font-family: var(--font); font-size: .78rem; color: var(--muted); font-style: normal; }
.banco { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 16px; }
.banco span { border: 1.5px dashed var(--lilac); background: var(--lilac-soft); border-radius: 8px; padding: .2em .7em; font-weight: 700; color: var(--lilac-dark); font-size: .9rem; }
.item { padding: 12px 14px; border-radius: 14px; margin-bottom: 8px; border: 1.5px solid transparent; }
.item .q { margin: 0 0 8px; color: var(--ink); font-weight: 500; line-height: 2.1; }
.num { font-weight: 800; margin-right: 6px; }
.emoji { font-size: 2.2rem; vertical-align: middle; margin-right: 10px; line-height: 1; }
.dica { display: block; color: var(--muted); font-size: .8rem; }
.ops { display: grid; gap: 6px; }
.ops-curtas { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
.op { display: flex; align-items: center; gap: 8px; border: 1.5px solid var(--line); border-radius: 12px; padding: .55em .8em; cursor: pointer; background: #fff; transition: border-color .12s, background .12s; }
.op:hover { border-color: var(--lilac); }
.op input { width: 18px; height: 18px; accent-color: var(--lilac-dark); flex: none; margin: 0; }
.op:has(input:checked) { border-color: var(--lilac-dark); background: var(--lilac-soft); }
.letra { font-weight: 700; color: var(--muted); }
.gap { border: 0; border-bottom: 2px solid var(--lilac-dark); background: var(--lilac-soft); border-radius: 6px 6px 0 0; padding: .15em .5em; min-width: 9em; max-width: 100%; color: var(--ink); font-weight: 600; margin: 0 4px; }
select.gap { min-width: 7em; }
.gap-print { display: none; }
.aberta { width: 100%; border: 1.5px solid var(--line); border-radius: 10px; padding: .6em .8em; resize: vertical; }
.linhas { display: none; }
.fb { font-size: .86rem; font-weight: 600; }
.fb:empty { display: none; }
.item.certo { border-color: var(--ok); background: var(--ok-soft); }
.item.errado { border-color: var(--err); background: var(--err-soft); }
.item.revisar { border-color: var(--line); background: #fafafa; }
.item.certo .fb { color: var(--ok); }
.item.errado .fb { color: var(--err); }
.item.revisar .fb { color: var(--muted); }
.corrigir .op, .corrigir .gap { pointer-events: none; }

.corrigir-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 26px 0 10px; }
.resultado { background: var(--ink); color: #fff; border-radius: var(--radius); padding: 26px; margin: 20px 0; text-align: center; scroll-margin-top: 90px; }
.resultado h2 { color: #fff; font-size: 1.1rem; margin-bottom: 8px; }
.nota { font-size: 3.4rem; font-weight: 800; line-height: 1; color: var(--yellow); }
.nota small { font-size: 1.1rem; color: #fff; font-weight: 600; }
.placar { display: flex; justify-content: center; gap: 22px; margin: 14px 0 6px; font-weight: 700; flex-wrap: wrap; }
.placar .c { color: var(--mint); }
.placar .x { color: #ff9aa0; }
.resultado .quem { font-size: .9rem; opacity: .85; margin-top: 10px; }
.resultado p.msg { margin: 8px 0 0; }

.gabarito { background: var(--bg-alt); border-radius: var(--radius); padding: 20px 24px; margin-top: 20px; }
.gab-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px 24px; }
.gab-grid ol { margin: 4px 0 0; padding-left: 22px; font-size: .92rem; }

/* modo aluno: só as questões */
.modo-aluno .so-professor, .modo-aluno .crumbs, .modo-aluno .site-footer, .modo-aluno .menu, .modo-aluno .menu-btn, .modo-aluno [data-ver-gabarito] { display: none !important; }
.modo-aluno .aluno-nome { display: block; }
.modo-aluno .atividade-wrap { grid-template-columns: 1fr; max-width: 820px; }
.modo-aluno .logo { pointer-events: none; }

/* rodapé */
.site-footer { background: var(--ink); color: #cfcfcf; padding: 48px 0 20px; font-size: .9rem; }
.site-footer a { color: #fff; }
.footer-in { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer-in h2 { color: #fff; font-size: .95rem; }
.footer-in ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.footer-logo { filter: brightness(0) invert(1); margin-bottom: 12px; }
.footer-base { border-top: 1px solid #3a3a3a; margin-top: 28px; padding-top: 16px; font-size: .8rem; }
@media (max-width: 760px) { .footer-in { grid-template-columns: 1fr; } }

/* impressão / PDF */
@media print {
  @page { size: A4; margin: 14mm 14mm 16mm; }
  body { font-size: 11.5pt; color: #000; background: #fff; }
  .site-header, .site-footer, .crumbs, .no-print, .so-professor, .lateral, .so-aluno, .acoes, .dica-acoes, .resultado, .fb, .bncc-info, .aviso-bncc, .skip { display: none !important; }
  .print-only { display: block; }
  .atividade-wrap { display: block; padding: 0; }
  .wrap { max-width: none; padding: 0; }
  .print-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; border-bottom: 2px solid #000; padding-bottom: 8px; margin-bottom: 10px; }
  .print-campos { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 10pt; justify-content: flex-end; }
  .at-head h1 { font-size: 17pt; margin: 6px 0 2px; }
  .resumo { display: none; }
  .card-tags { font-size: 8pt; }
  .tag { background: none !important; border: 1px solid #999; }
  .quiz { margin-top: 6px; }
  .secao { border-top: 1px solid #999; padding: 10px 0 2px; break-inside: auto; }
  .secao h2 { font-size: 12.5pt; margin-bottom: 2px; }
  .sec-n { background: none; border: 1.5px solid #000; width: 22px; height: 22px; font-size: 10pt; }
  .instr { margin: 2px 0 6px; }
  .texto { background: none; border: 1px solid #999; border-radius: 6px; font-size: 11pt; padding: 8px 12px; break-inside: avoid; }
  .banco span { background: none; border-color: #000; color: #000; }
  .item { padding: 3px 0; margin: 0; border: 0 !important; background: none !important; break-inside: avoid; }
  .item .q { line-height: 1.6; margin-bottom: 3px; }
  .emoji { font-size: 22pt; }
  .ops { gap: 0 14px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .ops:not(.ops-curtas) { grid-template-columns: 1fr; }
  .op { border: 0; padding: 1px 0 1px 8px; background: none !important; }
  .op input { display: none; }
  .op .letra::before { content: '(   ) '; font-weight: 400; color: #000; }
  .item-vf .op .letra { display: none; }
  .item-vf .op::before { content: '(   )'; margin-right: 4px; }
  .gap { display: none; }
  .gap-print { display: inline; letter-spacing: -1px; }
  .aberta { display: none; }
  .linhas { display: block; height: 52px; background: repeating-linear-gradient(to bottom, transparent 0 24px, #999 24px 25px); }
  .gabarito { display: none !important; }
  body.imprimir-gabarito .gabarito { display: block !important; break-before: page; background: none; padding: 0; }
  .print-rodape { text-align: center; font-size: 8.5pt; color: #555; margin-top: 18px; border-top: 1px solid #ccc; padding-top: 6px; }
}