/* ============================================
   gerador-folha.css — Free answer-sheet generator
   The sheet is sized in millimetres of an A4 print (190mm wide content
   area) but expressed in container-query units, so the on-screen preview
   and the printed page share the exact same layout.
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.gerador {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: var(--space-8);
  align-items: start;
  padding-block: var(--space-10) var(--space-12);
}

/* ===== FORM PANEL ===== */
.gerador__painel {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-6);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.gerador__painel h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-blue);
}

.campo {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.campo label,
.campo legend {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.campo input[type="text"],
.campo input[type="number"],
.campo select {
  width: 100%;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border: 1.5px solid var(--color-gray-400);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-gray-900);
}

.campo__dica {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.campo__erro {
  min-height: 1.5em;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  color: #b42318;
}

.campo fieldset {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  border: 0;
}

.campo__opcao {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 44px;
  font-size: var(--font-size-base);
  cursor: pointer;
}

.campo__opcao input {
  width: 22px;
  height: 22px;
  accent-color: var(--color-blue);
}

.gerador__painel .btn {
  width: 100%;
  min-height: 48px;
}

/* ===== PREVIEW ===== */
.gerador__previa-area {
  min-width: 0;
}

.gerador__previa {
  overflow-x: auto;
  padding: var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-gray-100);
}

.gerador__previa:focus-visible {
  outline: 3px solid var(--color-brand-400);
  outline-offset: 2px;
}

.folha-respostas {
  container-type: inline-size;
  width: 100%;
  min-width: 560px;
  max-width: 190mm;
  margin-inline: auto;
}

.folha-respostas__pagina {
  --mm: 0.5263cqw;

  display: flex;
  flex-direction: column;
  gap: calc(var(--mm) * 4);
  width: 100%;
  padding: calc(var(--mm) * 6);
  border: 1px solid var(--color-gray-300);
  background: #fff;
  color: #000;
  font-family: Arial, Helvetica, sans-serif;
  font-size: calc(var(--mm) * 3.4);
  line-height: 1.3;
}

.folha-respostas__cabecalho {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--mm) * 1.5);
}

.folha-respostas__instituicao {
  font-size: calc(var(--mm) * 3.8);
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
}

.folha-respostas__titulo {
  font-size: calc(var(--mm) * 5.2);
  font-weight: 700;
  text-align: center;
}

.folha-respostas__selo-gabarito {
  padding: calc(var(--mm) * 1) calc(var(--mm) * 4);
  border: 2px solid #000;
  font-size: calc(var(--mm) * 3.6);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.folha-respostas__campos {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--mm) * 3) calc(var(--mm) * 4);
}

.folha-respostas__campo {
  flex: 1 1 calc(var(--mm) * 40);
  padding-bottom: calc(var(--mm) * 0.5);
  border-bottom: 1px solid #000;
  white-space: nowrap;
}

.folha-respostas__campo--nome {
  flex-basis: 100%;
}

.folha-respostas__instrucoes {
  padding: calc(var(--mm) * 2) calc(var(--mm) * 3);
  border: 1px solid #000;
  font-size: calc(var(--mm) * 3);
}

.folha-respostas__grade {
  display: grid;
  grid-template-columns: repeat(var(--colunas), calc(var(--mm) * 44));
  justify-content: center;
  gap: calc(var(--mm) * 2.5);
  align-items: start;
}

.folha-respostas__coluna {
  display: flex;
  flex-direction: column;
  padding: calc(var(--mm) * 1) calc(var(--mm) * 1.5);
  border: 1px solid #000;
}

.folha-respostas__linha {
  display: flex;
  align-items: center;
  gap: calc(var(--mm) * 1.2);
  height: calc(var(--mm) * 7);
}

.folha-respostas__numero {
  flex: none;
  width: calc(var(--mm) * 5.5);
  font-size: calc(var(--mm) * 3.2);
  font-weight: 700;
  text-align: right;
}

.folha-respostas__opcao {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: calc(var(--mm) * 5);
  height: calc(var(--mm) * 5);
  border: 1.5px solid #000;
  border-radius: 50%;
  font-size: calc(var(--mm) * 2.8);
  font-weight: 700;
}

.folha-respostas__opcao.is-marcada {
  background: #000;
  color: #fff;
  print-color-adjust: exact;
  -webkit-print-color-adjust: exact;
}

.gerador__aviso {
  margin-top: var(--space-5);
}

/* ===== MOBILE ===== */
@media (max-width: 900px) {
  .gerador {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ===== PRINT ===== */
@page {
  size: a4;
  margin: 10mm;
}

@media print {
  .navbar,
  .skip-link,
  .page-hero,
  .gerador__painel,
  .gerador__aviso,
  .prose,
  .related,
  .footer {
    display: none;
  }

  body {
    min-height: 0;
  }

  .gerador {
    display: block;
    padding: 0;
  }

  .gerador__previa {
    overflow: visible;
    padding: 0;
    border: 0;
    background: none;
  }

  .folha-respostas {
    min-width: 0;
    width: 190mm;
    max-width: none;
    margin: 0;
  }

  .folha-respostas__pagina {
    border: 0;
    padding: 0;
  }
}