/* =========================================================
   BIBLIOTECA DOS ESTÚDIOS — visual
   As cores ficam logo aqui embaixo, nas variáveis (:root).
   Quer outra cor de destaque? Troque --brand e --brand2. 🎨
   ========================================================= */
:root {
  --bg: #f4f5fb;
  --card: #ffffff;
  --texto: #1f2340;
  --muted: #666b8c;
  --borda: #e2e5f3;
  --brand: #6c5ce7;
  --brand2: #ff6b9d;
  --brand-suave: #eeebff;
  --ok: #17a673;
  --ok-suave: #e3f7ef;
  --aviso: #c27b00;
  --aviso-suave: #fff4dc;
  --erro: #d63a40;
  --erro-suave: #ffe9ea;
  --sombra: 0 6px 24px rgba(50, 50, 120, .09);
  --raio: 18px;
}
[data-tema="escuro"] {
  --bg: #12132a;
  --card: #1c1e3a;
  --texto: #eceeff;
  --muted: #a1a7d0;
  --borda: #2f3259;
  --brand: #9a8cff;
  --brand2: #ff7fae;
  --brand-suave: #2a2850;
  --ok: #3fd49b;
  --ok-suave: #14392f;
  --aviso: #ffc24d;
  --aviso-suave: #3d3115;
  --erro: #ff7478;
  --erro-suave: #40191c;
  --sombra: 0 6px 24px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--bg); color: var(--texto);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--brand); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); }
h2 { font-size: 1.3rem; }
p { margin: 0 0 1em; }
code { background: var(--brand-suave); padding: .1em .4em; border-radius: 6px; font-size: .92em; }

/* ---------- topo ---------- */
.topo { background: linear-gradient(120deg, var(--brand), var(--brand2)); color: #fff; box-shadow: var(--sombra); }
.topo-in { max-width: 1100px; margin: 0 auto; padding: 12px 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; }
.logo { color: #fff; text-decoration: none; font-weight: 800; font-size: 1.2rem; letter-spacing: -.01em; }
.logo-emoji { display: inline-block; transition: transform .25s; }
.logo:hover .logo-emoji { transform: rotate(-12deg) scale(1.15); }
.menu { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.menu a, .menu-sair, .btn-tema {
  color: #fff; text-decoration: none; font: inherit; font-size: .92rem; font-weight: 600;
  background: transparent; border: 0; padding: 7px 12px; border-radius: 999px; cursor: pointer;
}
.menu a:hover, .menu-sair:hover, .btn-tema:hover, .menu a.on { background: rgba(255, 255, 255, .22); }
.form-sair { margin: 0; }

/* ---------- conteúdo ---------- */
.conteudo { flex: 1; width: 100%; max-width: 1100px; margin: 0 auto; padding: 26px 18px 40px; }
.rodape { text-align: center; color: var(--muted); font-size: .85rem; padding: 18px; }
.rodape p { margin: 0; }

.heroi { text-align: center; padding: 10px 0 22px; }
.heroi p { color: var(--muted); max-width: 560px; margin: 0 auto; }

/* ---------- avisos ---------- */
.aviso { padding: 12px 16px; border-radius: 14px; margin-bottom: 16px; font-weight: 500; background: var(--brand-suave); }
.aviso-ok { background: var(--ok-suave); color: var(--ok); }
.aviso-erro { background: var(--erro-suave); color: var(--erro); }
.aviso-info { background: var(--aviso-suave); color: var(--aviso); }

/* ---------- botões ---------- */
.botao {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  font: inherit; font-weight: 700; font-size: .95rem; text-decoration: none; cursor: pointer;
  padding: 10px 18px; border-radius: 999px; border: 2px solid transparent;
  background: linear-gradient(120deg, var(--brand), var(--brand2)); color: #fff;
  transition: transform .12s, box-shadow .12s, opacity .12s;
}
.botao:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(108, 92, 231, .35); }
.botao:disabled { opacity: .6; cursor: wait; transform: none; box-shadow: none; }
.botao-claro { background: var(--card); color: var(--brand); border-color: var(--borda); }
.botao-claro:hover { box-shadow: var(--sombra); }
.botao-perigo { background: var(--card); color: var(--erro); border-color: var(--erro-suave); }
.botao-pequeno { padding: 6px 12px; font-size: .85rem; }
.botao-linha { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.linha-form { display: inline; margin: 0; }

/* ---------- vitrine (página inicial) ---------- */
.busca { display: flex; gap: 10px; align-items: center; max-width: 520px; margin: 0 auto 26px; background: var(--card); border: 2px solid var(--borda); border-radius: 999px; padding: 4px 16px; box-shadow: var(--sombra); }
.busca:focus-within { border-color: var(--brand); }
.busca input { flex: 1; border: 0; outline: 0; background: transparent; color: inherit; font: inherit; padding: 10px 0; min-width: 0; }
.grade { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 22px; }
.cartao-leitura {
  display: flex; flex-direction: column; background: var(--card); border-radius: var(--raio);
  overflow: hidden; text-decoration: none; color: inherit; box-shadow: var(--sombra);
  border: 2px solid transparent; transition: transform .18s, border-color .18s;
}
.cartao-leitura:hover, .cartao-leitura:focus-visible { transform: translateY(-5px) rotate(-.4deg); border-color: var(--brand); }
.capa { position: relative; aspect-ratio: 3 / 4; background: var(--brand-suave); overflow: hidden; }
.capa img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.selo { position: absolute; top: 10px; left: 10px; font-size: .75rem; font-weight: 800; padding: 3px 10px; border-radius: 999px; background: var(--brand2); color: #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, .2); }
.info { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.info h3 { font-size: 1.05rem; margin: 0; }
.desc { color: var(--muted); font-size: .88rem; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.meta { margin: auto 0 0; padding-top: 8px; color: var(--muted); font-size: .8rem; }
.vazio { text-align: center; padding: 50px 20px; background: var(--card); border-radius: var(--raio); box-shadow: var(--sombra); }
.vazio .grande { font-size: 3.5rem; }

/* ---------- cartões, formulários ---------- */
.cartao { background: var(--card); border-radius: var(--raio); padding: 22px; box-shadow: var(--sombra); margin-bottom: 22px; }
.cartao h2 { display: flex; gap: 8px; align-items: center; }
.estreito { max-width: 620px; margin-left: auto; margin-right: auto; }
.campo { margin-bottom: 16px; }
.campo label { display: block; font-weight: 700; margin-bottom: 5px; font-size: .95rem; }
.campo small { display: block; color: var(--muted); margin-top: 4px; }
.campo input[type=text], .campo input[type=password], .campo input[type=number], .campo select, .campo textarea {
  width: 100%; font: inherit; color: inherit; background: var(--bg);
  border: 2px solid var(--borda); border-radius: 12px; padding: 10px 14px;
}
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: 0; border-color: var(--brand); background: var(--card); }
.campo textarea { min-height: 84px; resize: vertical; }
.campo input[type=file] { width: 100%; padding: 22px 14px; border: 2px dashed var(--borda); border-radius: 14px; background: var(--bg); color: inherit; cursor: pointer; font: inherit; }
.campo input[type=file]:hover { border-color: var(--brand); }
.grade-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.passos-lista { padding-left: 1.2em; margin: 0 0 1em; }
.passos-lista li { margin-bottom: .4em; }

/* ---------- lista do painel ---------- */
.item { display: grid; grid-template-columns: 64px 1fr auto; gap: 14px 16px; align-items: center; background: var(--card); border-radius: var(--raio); padding: 14px 16px; box-shadow: var(--sombra); margin-bottom: 14px; }
.item.oculta { opacity: .75; }
.item-capa { width: 64px; aspect-ratio: 3 / 4; border-radius: 10px; overflow: hidden; background: var(--brand-suave); display: grid; place-items: center; font-size: 1.6rem; }
.item-capa img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.item h3 { margin: 0 0 2px; font-size: 1.05rem; }
.item .meta { padding: 0; margin: 0; }
.etiquetas { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.etiqueta { font-size: .75rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; background: var(--brand-suave); color: var(--brand); }
.etiqueta.ok { background: var(--ok-suave); color: var(--ok); }
.etiqueta.erro { background: var(--erro-suave); color: var(--erro); }
.etiqueta.aviso { background: var(--aviso-suave); color: var(--aviso); }
.item-acoes { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
.abas { display: inline-flex; background: var(--card); border-radius: 999px; padding: 4px; box-shadow: var(--sombra); margin-bottom: 20px; gap: 4px; }
.abas a { text-decoration: none; padding: 7px 16px; border-radius: 999px; font-weight: 700; font-size: .9rem; color: var(--muted); }
.abas a.on { background: var(--brand); color: #fff; }
.cabeca-pagina { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; }
.cabeca-pagina h1 { margin: 0; }

/* ---------- tabela (professores, diagnóstico) ---------- */
.tabela { width: 100%; border-collapse: collapse; }
.tabela th, .tabela td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--borda); vertical-align: middle; }
.tabela th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.rolagem { overflow-x: auto; }

/* ---------- progresso da conversão ---------- */
.barra { height: 22px; background: var(--brand-suave); border-radius: 999px; overflow: hidden; margin: 14px 0; }
.barra i { display: block; height: 100%; width: 0; border-radius: 999px; background: linear-gradient(90deg, var(--brand), var(--brand2)); transition: width .4s; }
.grande-centro { text-align: center; }
.grande-centro .emoji { font-size: 3.4rem; display: block; margin-bottom: 6px; }
.girando { display: inline-block; animation: gira 1.6s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }

.login-caixa { max-width: 420px; margin: 6vh auto 0; }

@media (max-width: 640px) {
  .item { grid-template-columns: 56px 1fr; }
  .item-acoes { grid-column: 1 / -1; justify-content: flex-start; }
  .grade-2 { grid-template-columns: 1fr; }
  .grade { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .menu { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }
@media print { body { display: none !important; } }