:root {
  --fundo: #0b0b0c;
  --painel: #141416;
  --painel2: #1b1b1e;
  --borda: #2a2a2e;
  --texto: #f2f0ea;
  --suave: #9a978f;
  --ouro: #d4af37;
  --ouro-escuro: #a8871f;
  --verde: #3fb67a;
  --vermelho: #e5534b;
  --amarelo: #e3b341;
  --azul: #5b9cf5;
  --raio: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--fundo); color: var(--texto); font: 14px/1.45 Inter, system-ui, -apple-system, sans-serif; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--ouro); }
a.bt { text-decoration: none; display: inline-flex; align-items: center; }
[hidden] { display: none !important; }

/* topo */
.topo { display: flex; align-items: center; gap: 16px; padding: 12px 20px; border-bottom: 1px solid var(--borda); background: #0f0f10; position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
.marca { font-weight: 800; letter-spacing: .02em; display: flex; align-items: center; gap: 8px; }
.marca b { color: var(--ouro); }
.abas { display: flex; gap: 4px; flex-wrap: wrap; }
.aba { background: none; border: 1px solid transparent; padding: 7px 12px; border-radius: 8px; color: var(--suave); cursor: pointer; font-weight: 600; }
.aba:hover { color: var(--texto); }
.aba.ativa { color: var(--fundo); background: var(--ouro); }
.aba .cont { font-size: 11px; background: rgba(255,255,255,.1); padding: 1px 6px; border-radius: 99px; margin-left: 4px; }
.aba.ativa .cont { background: rgba(0,0,0,.15); }
.topo .dir { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.busca { background: var(--painel); border: 1px solid var(--borda); border-radius: 8px; padding: 7px 10px; width: 200px; }

/* indicadores */
.indicadores { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; padding: 14px 20px 0; }
.ind { background: var(--painel); border: 1px solid var(--borda); border-radius: var(--raio); padding: 10px 14px; }
.ind .n { font-size: 22px; font-weight: 800; }
.ind .r { color: var(--suave); font-size: 12px; }
.ind.alerta .n { color: var(--vermelho); }
.ind.ok .n { color: var(--verde); }

/* kanban */
.quadro { display: flex; gap: 12px; padding: 14px 20px 30px; overflow-x: auto; align-items: flex-start; min-height: calc(100vh - 170px); }
.coluna { flex: 0 0 280px; background: var(--painel); border: 1px solid var(--borda); border-radius: var(--raio); display: flex; flex-direction: column; max-height: calc(100vh - 190px); }
.coluna.sobre { border-color: var(--ouro); box-shadow: 0 0 0 1px var(--ouro) inset; }
.coluna h3 { margin: 0; padding: 12px 14px 10px; font-size: 13px; display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px solid var(--borda); }
.coluna h3 span { color: var(--suave); font-weight: 600; }
.coluna .dica { font-size: 11px; color: var(--suave); padding: 6px 14px 0; }
.cartoes { padding: 8px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; min-height: 60px; }
.cartao { background: var(--painel2); border: 1px solid var(--borda); border-radius: 8px; padding: 10px 11px; cursor: pointer; }
.cartao:hover { border-color: #3d3d42; }
.cartao.arrastando { opacity: .4; }
.cartao .nome { font-weight: 600; }
.cartao .sub { color: var(--suave); font-size: 12px; margin-top: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 7px; }
.chip { font-size: 11px; padding: 2px 7px; border-radius: 99px; background: rgba(255,255,255,.07); color: var(--suave); white-space: nowrap; }
.chip.ok { background: rgba(63,182,122,.15); color: var(--verde); }
.chip.ruim { background: rgba(229,83,75,.15); color: var(--vermelho); }
.chip.atencao { background: rgba(227,179,65,.15); color: var(--amarelo); }
.chip.ouro { background: rgba(212,175,55,.15); color: var(--ouro); }
.chip.azul { background: rgba(91,156,245,.15); color: var(--azul); }

/* botões e campos */
.bt { background: var(--painel2); border: 1px solid var(--borda); padding: 7px 12px; border-radius: 8px; cursor: pointer; font-weight: 600; }
.bt:hover { border-color: #45454a; }
.bt.ouro { background: var(--ouro); color: #111; border-color: var(--ouro); }
.bt.ouro:hover { background: #e2c050; }
.bt.peq { padding: 4px 9px; font-size: 12px; }
.bt.perigo { color: var(--vermelho); }
.bt:disabled { opacity: .5; cursor: default; }
label.campo { display: block; margin-bottom: 10px; }
label.campo > span { display: block; font-size: 12px; color: var(--suave); margin-bottom: 4px; }
input.in, select.in, textarea.in { width: 100%; background: var(--fundo); border: 1px solid var(--borda); border-radius: 8px; padding: 8px 10px; }
textarea.in { min-height: 80px; resize: vertical; }
input.in:focus, select.in:focus, textarea.in:focus { outline: none; border-color: var(--ouro); }
.grade2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
.grade3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 10px; }

/* gaveta (ficha do aluno) */
.gaveta { position: fixed; inset: 0 0 0 auto; width: min(620px, 100vw); background: #101012; border-left: 1px solid var(--borda); z-index: 20; overflow-y: auto; box-shadow: -20px 0 50px rgba(0,0,0,.5); }
.gaveta .cab { position: sticky; top: 0; background: #101012; padding: 16px 20px 12px; border-bottom: 1px solid var(--borda); z-index: 2; }
.gaveta .cab h2 { margin: 0 0 4px; font-size: 19px; }
.gaveta .fechar { position: absolute; right: 14px; top: 12px; }
.gaveta .corpo { padding: 14px 20px 40px; }
.secao { border: 1px solid var(--borda); background: var(--painel); border-radius: var(--raio); padding: 12px 14px; margin-bottom: 12px; }
.secao h4 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--ouro); display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.linha { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.linkform { display: flex; gap: 6px; }
.linkform input { flex: 1; font-size: 12px; color: var(--suave); }
.item { border-top: 1px solid var(--borda); padding: 9px 0; }
.item:first-of-type { border-top: 0; }
.item .t { font-weight: 600; }
.item .m { color: var(--suave); font-size: 12px; }
.numeros { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin: 8px 0; }
.numeros div { background: var(--fundo); border-radius: 6px; padding: 6px 8px; }
.numeros b { display: block; font-size: 14px; }
.numeros small { color: var(--suave); font-size: 11px; }
.bloco-txt { white-space: pre-wrap; margin: 4px 0 8px; }
.rotulo { font-size: 11px; color: var(--suave); text-transform: uppercase; letter-spacing: .05em; margin-top: 6px; }
.hist { font-size: 13px; }
.hist .item .m { margin-bottom: 2px; }

/* lista de tarefas */
.tarefas { padding: 14px 20px 40px; max-width: 1100px; }
.filtros { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.grupo h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--suave); margin: 18px 0 8px; }
.grupo h3.ruim { color: var(--vermelho); }
.tarefa { display: flex; gap: 12px; align-items: center; background: var(--painel); border: 1px solid var(--borda); border-radius: 8px; padding: 9px 12px; margin-bottom: 6px; }
.tarefa .info { flex: 1; min-width: 0; }
.tarefa .aluno { font-weight: 600; cursor: pointer; }
.tarefa .aluno:hover { color: var(--ouro); }
.tarefa .t { color: var(--suave); font-size: 13px; }
.tarefa .acoes { display: flex; gap: 6px; }
.vazio { color: var(--suave); padding: 30px; text-align: center; border: 1px dashed var(--borda); border-radius: var(--raio); }

/* modal e aviso */
.modal-fundo { position: fixed; inset: 0; background: rgba(0,0,0,.65); z-index: 40; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal { background: #121214; border: 1px solid var(--borda); border-radius: 14px; width: min(520px, 100%); max-height: 90vh; overflow-y: auto; padding: 18px 20px; }
.modal h3 { margin: 0 0 6px; }
.modal .explica { color: var(--suave); font-size: 13px; margin: 0 0 14px; }
.modal .botoes { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.regra { border-left: 3px solid var(--ouro); background: rgba(212,175,55,.07); padding: 8px 10px; border-radius: 0 8px 8px 0; font-size: 13px; margin-bottom: 12px; }
.aviso { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: #1f1f22; border: 1px solid var(--borda); padding: 10px 16px; border-radius: 10px; z-index: 60; max-width: 90vw; box-shadow: 0 10px 30px rgba(0,0,0,.4); }
.aviso.erro { border-color: var(--vermelho); color: #ffb4ae; }

/* login */
.login { max-width: 360px; margin: 12vh auto; padding: 26px; background: var(--painel); border: 1px solid var(--borda); border-radius: 14px; }
.login h1 { font-size: 20px; margin: 0 0 4px; }
.login p { color: var(--suave); margin: 0 0 18px; }

/* configurações */
.config { padding: 14px 20px 40px; max-width: 760px; }
table.tab { width: 100%; border-collapse: collapse; }
table.tab td, table.tab th { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--borda); }
table.tab th { color: var(--suave); font-size: 12px; font-weight: 600; }

@media (max-width: 700px) {
  .topo { padding: 10px 16px; }
  .busca { width: 100%; }
  .topo .dir { margin-left: 0; width: 100%; }
  .indicadores, .quadro, .tarefas, .config { padding-left: 16px; padding-right: 16px; }
  .coluna { flex-basis: 84vw; }
  .numeros { grid-template-columns: repeat(3, 1fr); }
  .grade3 { grid-template-columns: 1fr 1fr; }
  .tarefa { flex-wrap: wrap; }
}