:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --border: #e3e6ea;
  --primary: #1f2933;
  --primary-hover: #111827;
  --danger: #b42318;
  --success: #067647;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.page-header h1 { margin: 0; font-size: 1.6rem; }
.page-header p { margin: 4px 0 24px; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 16px;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-size: 0.9rem; font-weight: 500; }
.opcional { font-weight: 400; color: var(--muted); }

input[type="text"],
input[type="number"],
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
  color: var(--text);
}

textarea { resize: vertical; min-height: 64px; }

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 41, 51, 0.1);
}

.radio-group { display: flex; flex-direction: column; gap: 6px; padding-top: 4px; }
.radio { display: flex; align-items: center; gap: 8px; font-size: 0.95rem; cursor: pointer; }

/* Linhas dinâmicas */
.lista { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }

.linha {
  display: grid;
  gap: 10px;
  align-items: start;
}

.linha-tamanho { grid-template-columns: 1fr 140px 40px; }
.linha-modelo { grid-template-columns: 1fr 2fr 40px; }

.btn-remover {
  height: 42px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  color: var(--muted);
  font-size: 1.1rem;
}
.btn-remover:hover { color: var(--danger); border-color: var(--danger); }

.btn {
  font: inherit;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary {
  background: #fff;
  border-color: var(--border);
  color: var(--text);
}
.btn-secondary:hover { background: var(--bg); }

.total-pecas { margin: 12px 0 0; color: var(--muted); font-size: 0.9rem; }
.total-pecas strong { color: var(--text); }

.resumo {
  display: flex;
  gap: 24px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}
.resumo div { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--muted); }
.resumo strong { font-size: 1.1rem; color: var(--text); }

.mensagem { min-height: 1.4em; margin: 12px 0 0; text-align: center; font-size: 0.9rem; }
.mensagem.erro { color: var(--danger); }
.mensagem.ok { color: var(--success); }

@media (max-width: 600px) {
  .grid-2 { grid-template-columns: 1fr; }
  .linha-tamanho { grid-template-columns: 1fr 100px 40px; }
  .linha-modelo { grid-template-columns: 1fr 40px; }
  .linha-modelo textarea { grid-column: 1 / 2; }
}

/* Logo / upload */
.logo-upload { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.logo-upload input[type="file"] { font: inherit; font-size: 0.9rem; max-width: 100%; }
.preview-logo {
  height: 56px;
  max-width: 120px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  background: #fff;
}
.preview-logo[hidden], .btn[hidden] { display: none; }
.btn-pequeno { padding: 6px 12px; font-size: 0.85rem; }
input:disabled { background: var(--bg); color: var(--muted); }

/* Rodapé */
.rodape {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}