:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef1f4;
  --text: #1b2430;
  --muted: #5f6b7a;
  --border: #d9dfe6;
  --primary: #1f5f8b;
  --primary-text: #ffffff;
  --P: #2e7d32;  --P-bg: #e3f3e4;
  --A: #b26a00;  --A-bg: #fff1d6;
  --J: #1565c0;  --J-bg: #e1ecfa;
  --F: #c62828;  --F-bg: #fbe3e3;
  --danger: #c62828;
  --shadow: 0 1px 3px rgba(0, 0, 0, .12);
  --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161c;
    --surface: #1a2129;
    --surface-2: #232c36;
    --text: #e6ebf0;
    --muted: #9aa6b4;
    --border: #2f3a46;
    --primary: #5aa3d6;
    --primary-text: #0d1720;
    --P: #6cc070;  --P-bg: #1d3320;
    --A: #f0b04a;  --A-bg: #3a2c12;
    --J: #6aa8ef;  --J-bg: #172a42;
    --F: #ef6f6f;  --F-bg: #3e1c1c;
    --danger: #ef6f6f;
    --shadow: 0 1px 3px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  padding-bottom: env(safe-area-inset-bottom);
}
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

/* ---- barra superior e abas ---- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 4px;
  min-height: 56px; padding: env(safe-area-inset-top) 4px 0;
  background: var(--primary); color: var(--primary-text);
}
.topbar-title { flex: 1; min-width: 0; padding: 0 8px; }
.topbar h1 { margin: 0; font-size: 18px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar .sub { font-size: 12px; opacity: .85; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.icon-btn {
  width: 44px; height: 44px; border: 0; border-radius: 50%;
  background: transparent; color: inherit; font-size: 22px; cursor: pointer;
}
.icon-btn:active { background: rgba(255, 255, 255, .18); }

.tabs {
  position: sticky; top: 56px; z-index: 9;
  display: flex; overflow-x: auto; background: var(--surface);
  border-bottom: 1px solid var(--border); scrollbar-width: none;
}
.tabs a {
  flex: 1 0 auto; padding: 12px 14px; text-align: center; white-space: nowrap;
  color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600;
  border-bottom: 3px solid transparent;
}
.tabs a.on { color: var(--primary); border-bottom-color: var(--primary); }

main { max-width: 760px; margin: 0 auto; padding: 12px 12px 96px; }

/* ---- componentes ---- */
.card {
  background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px; margin-bottom: 12px;
}
.card h2 { margin: 0 0 6px; font-size: 16px; }
.card h3 { margin: 0 0 4px; font-size: 15px; }
.muted { color: var(--muted); font-size: 14px; }
.small { font-size: 13px; }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.nowrap { flex-wrap: nowrap; }
.grow { flex: 1; min-width: 0; }
.right { margin-left: auto; }
.stack > * + * { margin-top: 10px; }
.empty { text-align: center; padding: 32px 16px; color: var(--muted); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 42px; padding: 8px 14px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); font-weight: 600; font-size: 15px;
  text-decoration: none; color: var(--text);
}
.btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn.danger { color: var(--danger); }
.btn.small { min-height: 34px; padding: 4px 10px; font-size: 14px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; }

.fab {
  position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom));
  min-height: 52px; padding: 0 20px; border-radius: 26px; border: 0;
  background: var(--primary); color: var(--primary-text); font-weight: 700; font-size: 15px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, .3); cursor: pointer; z-index: 8;
}

input[type=text], input[type=number], input[type=date], input[type=search], select, textarea {
  width: 100%; min-height: 42px; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
textarea { min-height: 70px; }
label.field { display: block; font-size: 13px; color: var(--muted); }
label.field > input, label.field > select, label.field > textarea { margin-top: 4px; font-size: 16px; }
.checks { display: flex; flex-wrap: wrap; gap: 6px; }
.checks label {
  display: inline-flex; align-items: center; gap: 4px; padding: 6px 10px;
  border: 1px solid var(--border); border-radius: 20px; font-size: 14px;
}

/* ---- lista de turmas ---- */
.turma-card { display: block; color: inherit; text-decoration: none; }
.turma-card .codigo { font-weight: 700; color: var(--primary); }

/* ---- chamada ---- */
.aula-nav { display: flex; align-items: center; gap: 6px; }
.aula-nav .info { flex: 1; text-align: center; min-width: 0; }
.aula-nav .data { font-weight: 700; font-size: 17px; }
.aula-nav .conteudo { font-size: 13px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.contadores { display: flex; gap: 6px; margin: 10px 0 0; }
.contadores span {
  flex: 1; text-align: center; border-radius: 8px; padding: 4px 0; font-size: 13px; font-weight: 700;
}
.c-P { background: var(--P-bg); color: var(--P); }
.c-A { background: var(--A-bg); color: var(--A); }
.c-J { background: var(--J-bg); color: var(--J); }
.c-F { background: var(--F-bg); color: var(--F); }
.c-vazio { background: var(--surface-2); color: var(--muted); }

.lista-chamada { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.aluno-row {
  display: flex; align-items: center; gap: 8px; padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.aluno-row:last-child { border-bottom: 0; }
.aluno-row .nome { flex: 1; min-width: 0; font-size: 15px; line-height: 1.25; cursor: pointer; }
.aluno-row .nome .det { font-size: 12px; color: var(--muted); }
.aluno-row.inativo .nome { opacity: .55; }
.st-group { display: flex; gap: 4px; flex: none; }
.st {
  width: 40px; height: 40px; border-radius: 9px; cursor: pointer;
  border: 1.5px solid var(--border); background: var(--surface); color: var(--muted);
  font-weight: 800; font-size: 15px;
}
.st.on.P { background: var(--P); border-color: var(--P); color: #fff; }
.st.on.A { background: var(--A); border-color: var(--A); color: #fff; }
.st.on.J { background: var(--J); border-color: var(--J); color: #fff; }
.st.on.F { background: var(--F); border-color: var(--F); color: #fff; }
.obs-dot { color: var(--J); font-size: 12px; }
.faltas-n { font-weight: 700; color: var(--text); }
.faltas-n.RF { color: var(--F); }
.faltas-n.LIM { color: var(--A); }

/* modo um a um */
.um-a-um { text-align: center; padding: 22px 14px; }
.um-a-um .progresso { color: var(--muted); font-size: 14px; }
.um-a-um .nome-grande { font-size: 26px; font-weight: 700; line-height: 1.2; margin: 18px 0 6px; min-height: 2.4em; }
.um-a-um .mat { color: var(--muted); }
.grandes { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
.grandes button {
  min-height: 78px; border-radius: 14px; border: 2px solid transparent; cursor: pointer;
  font-size: 18px; font-weight: 800;
}
.grandes .P { background: var(--P-bg); color: var(--P); }
.grandes .A { background: var(--A-bg); color: var(--A); }
.grandes .J { background: var(--J-bg); color: var(--J); }
.grandes .F { background: var(--F-bg); color: var(--F); }
.grandes button.on { border-color: currentColor; }

/* ---- tabelas ---- */
.tabela-wrap { overflow-x: auto; background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { background: var(--surface-2); font-size: 12px; text-transform: uppercase; letter-spacing: .02em; color: var(--muted); position: sticky; top: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.nome-cel { white-space: normal; min-width: 160px; }
tr.inativo td { opacity: .55; }
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 700;
}
.tag.RF { background: var(--F-bg); color: var(--F); }
.tag.LIM, .tag.BAIXA, .tag.VS { background: var(--A-bg); color: var(--A); }
.tag.OK { background: var(--P-bg); color: var(--P); }
.tag.fora { background: var(--surface-2); color: var(--muted); }
.mini { display: inline-block; width: 22px; height: 22px; line-height: 22px; text-align: center; border-radius: 5px; font-size: 12px; font-weight: 800; }
.mini.P { background: var(--P-bg); color: var(--P); }
.mini.A { background: var(--A-bg); color: var(--A); }
.mini.J { background: var(--J-bg); color: var(--J); }
.mini.F { background: var(--F-bg); color: var(--F); }

/* ---- cronograma ---- */
.aula-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-bottom: 1px solid var(--border); cursor: pointer; }
.aula-item:last-child { border-bottom: 0; }
.aula-item .quando { width: 70px; flex: none; font-weight: 700; font-size: 14px; }
.aula-item .quando .dia { font-weight: 400; color: var(--muted); font-size: 12px; }
.aula-item.hoje { background: var(--J-bg); }
.aula-item.sem-aula { opacity: .55; }
.aula-item .badge { font-size: 12px; color: var(--muted); }

/* ---- notas ---- */
.nota-input { width: 84px !important; text-align: right; }

/* ---- diálogo ---- */
dialog {
  width: min(560px, calc(100vw - 24px)); max-height: calc(100vh - 48px);
  border: 0; border-radius: 16px; padding: 0; background: var(--surface); color: var(--text);
  box-shadow: 0 10px 40px rgba(0, 0, 0, .35);
}
dialog::backdrop { background: rgba(0, 0, 0, .45); }
dialog form { padding: 18px; }
dialog h2 { margin: 0 0 12px; font-size: 18px; }
dialog .acoes { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
dialog ul { padding-left: 20px; margin: 6px 0; }
dialog .scroll { max-height: 40vh; overflow-y: auto; }

#toast {
  position: fixed; left: 50%; bottom: calc(84px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  background: #26323e; color: #fff; padding: 10px 16px; border-radius: 20px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 50; max-width: calc(100vw - 32px);
}
#toast.show { opacity: 1; }

.menu-list { list-style: none; margin: 0 -18px; padding: 0; }
.menu-list button {
  display: block; width: 100%; text-align: left; padding: 14px 18px; border: 0;
  background: none; cursor: pointer; font-size: 16px;
}
.menu-list button:active { background: var(--surface-2); }
.menu-list .sep { border-top: 1px solid var(--border); margin: 4px 0; }

/* ---- grupos de formulário (período, plano de avaliação) ---- */
fieldset.grupo { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px 12px; margin: 0; min-width: 0; }
fieldset.grupo legend { font-size: 13px; font-weight: 700; color: var(--muted); padding: 0 4px; }
.plano-cab, .plano-linha { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr) 52px 52px; gap: 6px; }
.plano-cab { margin-top: 8px; }
.plano-linha { margin-top: 6px; }
.plano-linha input { min-height: 38px; padding: 6px 8px; font-size: 15px; min-width: 0; }
.plano-linha input[readonly] { background: var(--surface-2); }

/* ---- conferência da leitura de folha ---- */
.ocr-lista { display: flex; flex-direction: column; gap: 10px; max-height: 55vh; overflow-y: auto; margin: 8px -4px; padding: 0 4px; }
.ocr-item { border: 1.5px solid var(--border); border-radius: 10px; padding: 8px; background: var(--surface); }
.ocr-item.on { border-color: var(--P); background: var(--P-bg); }
.ocr-item img { display: block; width: 100%; height: auto; border-radius: 6px; margin-bottom: 6px; background: #fff; }
.ocr-item select { flex: 1; min-width: 0; }
.ocr-check { display: inline-flex; align-items: center; gap: 4px; font-weight: 700; font-size: 14px; white-space: nowrap; }

/* ---- v0.3: filtros, estatísticas, e-mail, arquivo ---- */
.barra-visao { padding: 10px 12px; }
.barra-visao select { font-size: 15px; }
.hist { display: inline-flex; align-items: flex-end; gap: 2px; height: 24px; width: 84px; vertical-align: middle; }
.hist i { flex: 1; background: var(--primary); border-radius: 2px 2px 0 0; }
tr.linha-media td { background: var(--surface-2); }
.tag { margin: 1px 0; }
.envio .aluno-row.enviado { opacity: .55; }
.envio .aluno-row .det { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
details.arquivo { margin-top: 18px; }
details.arquivo > summary { cursor: pointer; color: var(--muted); font-weight: 600; padding: 6px 2px 10px; }
.turma-card.arquivada { opacity: .7; }
code { font-size: 12px; background: var(--surface-2); padding: 0 3px; border-radius: 3px; }
@media (max-width: 480px) { .opc { display: none; } .hist { width: 64px; } }
.menu-list.arquivos button { display: flex; justify-content: space-between; gap: 8px; }
.menu-list.arquivos .muted { flex: none; }
.versao { text-align: center; margin: 28px 0 70px; }
.lista-manual { max-height: 38vh; overflow-y: auto; display: flex; flex-direction: column; flex-wrap: nowrap; align-items: flex-start; gap: 2px; margin-top: 6px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; }
.tag.cat { background: var(--surface-2); color: var(--text); }
.previa-box { overflow-x: auto; max-height: 30vh; border: 1px solid var(--border); border-radius: 8px; margin: 6px 0 10px; }
table.previa { border-collapse: collapse; font-size: 12px; }
table.previa th, table.previa td { border: 1px solid var(--border); padding: 2px 6px; white-space: nowrap; }
table.previa th { color: var(--muted); font-weight: normal; }
a.hist { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2px 10px; width: 100%; color: inherit; text-decoration: none; padding: 7px 0; border-top: 1px solid var(--border); }
a.hist .grow { flex: 1 1 60%; min-width: 0; }
a.hist .muted { flex: 0 1 auto; text-align: right; }
.card.pessoa .chips { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.card.pessoa .chips .tag { text-decoration: none; }

/* projetos, disciplinas e calendário (0.8.0) */
h3.secao { margin: 18px 4px 8px; color: var(--muted); font-size: 14px; font-weight: 600; }
ul.eventos { margin: 8px 0 4px; padding-left: 18px; }
ul.eventos li { margin: 2px 0; }