/* Painel da turma — identidade do lab: Archivo (títulos), Source Sans 3 (texto),
   IBM Plex Mono (números/código); claro/escuro por tokens. */
:root {
  --bg: #f5f8f9;
  --surface: #fff;
  --ink: #172024;
  --muted: #5b6a70;
  --line: #dbe3e6;
  --accent: #1f8fa3;
  --accent-soft: #e3f3f6;
  --accent-ink: #fff;
  --ok: #1d7a4c;
  --ok-soft: #e4f4ea;
  --warn: #9a6200;
  --warn-soft: #fdf1dc;
  --bad: #b3261e;
  --bad-soft: #fbe7e5;
  --raio: 10px;
  --f-titulo: 'Archivo', system-ui, sans-serif;
  --f-texto: 'Source Sans 3', system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11181b;
    --surface: #172024;
    --ink: #e6eef0;
    --muted: #97a8ae;
    --line: #2a383d;
    --accent: #3ab8cd;
    --accent-soft: #173640;
    --accent-ink: #0d1417;
    --ok: #5cc98f;
    --ok-soft: #173327;
    --warn: #e0a53f;
    --warn-soft: #3a2c12;
    --bad: #f0857d;
    --bad-soft: #3d1c1a;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 var(--f-texto);
}
a { color: var(--accent); }
h1, h2, h3 { font-family: var(--f-titulo); line-height: 1.2; margin: 0 0 .5rem; }
h1 { font-weight: 800; font-size: 1.6rem; letter-spacing: -.01em; }
h2 { font-weight: 700; font-size: 1.15rem; }
h3 { font-weight: 500; font-size: 1rem; }
.mono, code, .num { font-family: var(--f-mono); }
.muted { color: var(--muted); }
.pequeno { font-size: .875rem; }

/* --- topo ---------------------------------------------------------------- */
.topo {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topo__in {
  max-width: 1200px; margin: 0 auto; padding: .75rem 16px;
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.25rem;
}
.marca { font-family: var(--f-titulo); font-weight: 800; font-size: 1.05rem; color: var(--ink); text-decoration: none; }
.marca span { color: var(--accent); }
.nav { display: flex; flex-wrap: wrap; gap: .25rem; flex: 1; }
.nav a {
  color: var(--muted); text-decoration: none; padding: .35rem .7rem; border-radius: 8px;
  font-weight: 600;
}
.nav a:hover { background: var(--accent-soft); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); }
.quem { display: flex; align-items: center; gap: .6rem; font-size: .9rem; color: var(--muted); }
.quem form { margin: 0; }

.aviso-como {
  background: var(--warn-soft); color: var(--warn); border-bottom: 1px solid var(--line);
}
.aviso-como .topo__in { padding: .5rem 16px; font-weight: 600; }
.aviso-como form { margin: 0 0 0 auto; }

main.pagina { max-width: 1200px; margin: 0 auto; padding: 1.5rem 16px 3rem; }
.cabecalho { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; }
.cabecalho p { margin: 0; }

/* --- componentes ----------------------------------------------------------- */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--raio);
  padding: 1rem 1.1rem;
}
.cards { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.pilha > * + * { margin-top: 1rem; }
.grade-2 { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.pill {
  display: inline-flex; align-items: center; gap: .3rem;
  font: 500 .75rem/1 var(--f-mono); text-transform: uppercase; letter-spacing: .03em;
  padding: .3rem .5rem; border-radius: 999px; border: 1px solid transparent;
  background: var(--accent-soft); color: var(--accent); white-space: nowrap;
}
.pill--ok { background: var(--ok-soft); color: var(--ok); }
.pill--warn { background: var(--warn-soft); color: var(--warn); }
.pill--bad { background: var(--bad-soft); color: var(--bad); }
.pill--neutro { background: transparent; border-color: var(--line); color: var(--muted); }

.bolinha { width: .7rem; height: .7rem; border-radius: 50%; display: inline-block; background: var(--line); flex: none; }
.bolinha--on { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  font: 600 .9rem/1 var(--f-texto); padding: .55rem .9rem; border-radius: 8px;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink);
  cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { filter: brightness(1.08); }
.btn--sec { background: transparent; color: var(--accent); }
.btn--perigo { background: transparent; border-color: var(--bad); color: var(--bad); }
.btn--mini { padding: .35rem .6rem; font-size: .8rem; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.link-botao { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; }

.flash { border-radius: var(--raio); padding: .75rem 1rem; margin-bottom: 1rem; border: 1px solid var(--line); }
.flash--ok { background: var(--ok-soft); color: var(--ok); }
.flash--erro { background: var(--bad-soft); color: var(--bad); }
.flash--info { background: var(--accent-soft); color: var(--ink); }

/* --- formulários ----------------------------------------------------------- */
label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .25rem; }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: .5rem .65rem;
}
textarea { font-family: var(--f-mono); font-size: .85rem; min-height: 12rem; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.campo { margin-bottom: .85rem; }
.campos { display: grid; gap: 0 1rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.checks { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
.checks label { font-weight: 400; display: flex; gap: .35rem; align-items: center; }
.seletor { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; max-width: 100%; }
.seletor select, .seletor input { width: auto; max-width: 100%; min-width: 0; flex: 1 1 12rem; }

/* --- turma ao vivo --------------------------------------------------------- */
.aluno { display: flex; flex-direction: column; gap: .6rem; }
.aluno--ajuda { border-color: var(--warn); box-shadow: 0 0 0 2px var(--warn-soft); }
.aluno__topo { display: flex; align-items: center; gap: .5rem; }
.aluno__nome { font-family: var(--f-titulo); font-weight: 700; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.aluno__slug { font: .78rem var(--f-mono); color: var(--muted); }
.aluno__dados { display: flex; gap: 1rem; font-size: .85rem; color: var(--muted); }
.aluno__dados b { font: 600 1rem var(--f-mono); color: var(--ink); display: block; }
.aluno__acoes { display: flex; gap: .5rem; align-items: center; justify-content: space-between; }
.resumo { display: flex; flex-wrap: wrap; gap: .5rem; }

/* --- tabelas --------------------------------------------------------------- */
.tabela-rolagem { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font: 600 .75rem var(--f-mono); text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td.num, th.num { text-align: right; }
tr:last-child td { border-bottom: 0; }
td form { margin: 0; display: inline; }

.barra { height: .4rem; background: var(--line); border-radius: 999px; overflow: hidden; min-width: 5rem; }
.barra > span { display: block; height: 100%; background: var(--accent); }

.numero-grande { font: 700 2rem/1.1 var(--f-mono); }

/* --- login ----------------------------------------------------------------- */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login .card { width: 100%; max-width: 380px; padding: 1.75rem; }
.login h1 { margin-bottom: .25rem; }
.login .btn { width: 100%; margin-top: .5rem; padding: .7rem; }

.ico { width: 1.05em; height: 1.05em; flex: none; }