/* Central de Aulas (casca): mesmo visual dos roteiros (Poppins, fundo claro, azul #045fba). */
body { background: #f5f6f8; font-family: 'Poppins', sans-serif; color: #1f2937; display: flex; flex-direction: column; }
#ca-principal { flex: 1; }

.ca-topo { background: #ffffff; border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 30; }
.ca-avatar { height: 44px; width: 44px; object-fit: contain; object-position: top; margin-bottom: -6px; image-rendering: pixelated; }
.ca-link-sistema { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: #045fba;
  border: 1px solid #dbe4f3; border-radius: 999px; padding: 6px 12px; margin-left: 4px; }
.ca-link-sistema:hover { background: #eff6ff; }

.ca-secao { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 800; text-transform: uppercase;
  letter-spacing: .04em; color: #045fba; margin-bottom: 12px; }
.ca-grade { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }

.ca-card { display: flex; flex-direction: column; gap: 6px; background: #ffffff; border: 1px solid #e5e7eb; border-radius: 16px;
  padding: 18px; transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease; cursor: pointer; width: 100%; }
.ca-card:hover { border-color: #045fba; box-shadow: 0 8px 24px -12px rgba(4, 95, 186, .45); transform: translateY(-1px); }
.ca-card-off { cursor: default; opacity: .6; }
.ca-card-off:hover { border-color: #e5e7eb; box-shadow: none; transform: none; }
.ca-sigla { align-self: flex-start; background: #eef2ff; color: #4338ca; font-weight: 700; font-size: 12px; padding: 2px 10px; border-radius: 999px; }
.ca-card-nome { font-weight: 700; color: #111827; line-height: 1.3; }
.ca-card-info { font-size: 12px; color: #6b7280; }
.ca-card-abrir { margin-top: auto; padding-top: 6px; font-size: 13px; font-weight: 600; color: #045fba; }

.ca-cartao { background: #ffffff; border: 1px solid #e5e7eb; border-radius: 16px; padding: 22px; }
.ca-voltar { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: #045fba; }
.ca-voltar:hover { text-decoration: underline; }

.ca-botao { display: inline-flex; align-items: center; gap: 8px; background: #045fba; color: #ffffff; font-weight: 600; font-size: 14px;
  padding: 9px 16px; border-radius: 12px; border: 0; cursor: pointer; }
.ca-botao:hover { background: #034f9b; }
.ca-botao:disabled { opacity: .6; cursor: wait; }
.ca-botao-claro { background: #ffffff; color: #1e3a8a; }
.ca-botao-claro:hover { background: #eff6ff; }
.ca-slides { margin: 10px 0; }

.ca-form .ca-rotulo { display: block; font-size: 13px; font-weight: 600; color: #374151; margin-bottom: 12px; }
.ca-campo { display: block; width: 100%; margin-top: 4px; border: 1px solid #d1d5db; border-radius: 10px; padding: 8px 10px;
  font-size: 14px; font-weight: 400; background: #ffffff; }
.ca-campo:focus { outline: 2px solid #bfdbfe; border-color: #045fba; }

.ca-rodape { border-top: 1px solid #e5e7eb; background: #ffffff; }