:root{
  --bg:#f6f3ef; --card:#fff; --ink:#2c2621; --muted:#8a8178;
  --terra:#b5643c; --terra-d:#9a5231; --line:#e7e0d8;
  --verde:#2e7d5b; --verde-bg:#e6f4ec; --cinza-bg:#efeae4;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5}
a{color:var(--terra);text-decoration:none}
a:hover{text-decoration:underline}
.top{display:flex;justify-content:space-between;align-items:center;padding:14px 22px;background:var(--terra);color:#fff}
.top .brand{color:#fff;font-weight:700;font-size:18px}
.top .brand span{opacity:.85;font-weight:400}
.top nav a{color:#fff;opacity:.9}
main{max-width:920px;margin:22px auto;padding:0 16px}
footer{max-width:920px;margin:24px auto;padding:0 16px 30px;color:var(--muted);font-size:12.5px;text-align:center}
.flash{max-width:920px;margin:14px auto 0;padding:11px 16px;background:#fff6ec;border:1px solid #f0d3b5;border-radius:9px;color:#8a5a2b}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin-bottom:18px;box-shadow:0 1px 3px rgba(60,40,20,.04)}
h1{font-size:22px;margin:.1em 0 .4em}
h2{font-size:17px;margin:.2em 0 .5em}
.sub,.hint{color:var(--muted);font-size:13px;margin:.2em 0 .8em}
code{background:#f2ede7;padding:1px 6px;border-radius:5px;font-size:12px}
.voltar{display:inline-block;margin-bottom:10px}
input{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;font-size:14px;margin-top:4px}
input:focus{outline:2px solid #e6c3ab;border-color:var(--terra)}
label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:10px}
button,.btn{background:var(--terra);color:#fff;border:0;border-radius:9px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer}
button:hover,.btn:hover{background:var(--terra-d);text-decoration:none}
button.sm,.btn.sm{padding:6px 11px;font-size:12.5px}
button.ghost{background:transparent;color:var(--terra);border:1px solid var(--terra)}
button.ghost:hover{background:#faf1ea}
.search{display:flex;gap:8px}.search input{margin-top:0}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.grid button{grid-column:1/-1;justify-self:start;margin-top:6px}
.login{max-width:340px;margin:8vh auto}
table{width:100%;border-collapse:collapse;margin-top:8px;font-size:13.5px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
tr.ok{background:var(--verde-bg)}
.acoes{display:flex;gap:6px;align-items:center}
.acoes form{margin:0}
.tag{padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.tag.verde{background:var(--verde-bg);color:var(--verde)}
.tag.cinza{background:var(--cinza-bg);color:var(--muted)}
.vazio{color:var(--muted);text-align:center;padding:16px}
/* grupos de pendentes (por aluno) */
.pgrupo{display:flex;align-items:center;gap:12px;padding:12px 2px;border-bottom:1px solid var(--line)}
.pgrupo:last-child{border-bottom:0}
.pinfo{flex:1;min-width:0}
.pnome{font-weight:600}
.pmeta{color:var(--muted);font-size:12.5px;margin-top:2px;overflow:hidden;text-overflow:ellipsis}
.pgrupo .btn{flex:none}
/* barra de ações em lote: gruda no rodapé da tela (acessível em listas grandes) */
.barra{position:sticky;bottom:0;z-index:20;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin:14px -22px -20px;padding:12px 22px;border-top:1px solid var(--line);border-radius:0 0 14px 14px;
  background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);
  box-shadow:0 -6px 18px rgba(60,40,20,.08)}
.barra #sel{color:var(--muted);font-size:13px;margin-right:auto}
.cpfmsg{font-size:12px;font-weight:600}
.cpfmsg.ok{color:var(--verde)}
.cpfmsg.erro{color:#c0392b}
input[type=checkbox]{width:auto;margin:0;transform:scale(1.15)}
input[type=checkbox]:disabled{opacity:.4}
button:disabled,.btn:disabled{opacity:.45;cursor:not-allowed}
.loadhint{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.linkbtn{background:none;border:0;color:var(--terra);padding:0;font:inherit;font-size:13px;cursor:pointer}
.linkbtn:hover{text-decoration:underline}
/* skeleton (carregamento assíncrono) */
.skel{display:inline-block;height:12px;min-width:24px;vertical-align:middle;border-radius:6px;
  background:linear-gradient(90deg,#ece7e1 25%,#f4f0ea 37%,#ece7e1 63%);
  background-size:400% 100%;animation:sksh 1.25s ease-in-out infinite}
.skel-line{height:1.05em;min-width:160px}
.skrow td{padding-top:9px;padding-bottom:9px}   /* mesmo padding das linhas reais: evita salto (CLS) */
@keyframes sksh{0%{background-position:100% 50%}100%{background-position:0 50%}}
@media(prefers-reduced-motion:reduce){.skel{animation:none}}
/* barra de progresso de navegação (topo) */
#nprog{position:fixed;top:0;left:0;right:0;height:3px;z-index:9999;background:transparent;opacity:0;transition:opacity .25s;pointer-events:none}
#nprog.on{opacity:1}
#nprogbar{height:100%;width:0;background:linear-gradient(90deg,var(--terra),#e59b76);box-shadow:0 0 10px rgba(181,100,60,.6);transition:width .2s ease}
@media(prefers-reduced-motion:reduce){#nprogbar{transition:none}}
/* fallback sem JavaScript: esconde conteúdo que depende de JS */
html:not(.js) .needs-js{display:none}
.semjs{display:none}
html:not(.js) .semjs{display:block}
@media(max-width:560px){.grid{grid-template-columns:1fr}}