body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f6f9fc;
  margin: 0;
  padding: 0;
  color: #1c1c1e;
}
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1em 2em;
  background-color: #ffffff;
  border-bottom: 1px solid #e0e0e0;
  font-weight: bold;
}
.logo {
  font-size: 1.3em;
  color: #034FEF;
  width: 100px;
}
.title {
  font-size: 1.3em;
  color: #034FEF;
}
.main-container {
  padding: 2em;
  max-width: 1200px;
  margin: auto;
}
.card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  padding: 1.5em;
  margin-bottom: 1.5em;
}
.card h2 {
  margin-top: 0;
  margin-bottom: 1em;
  font-size: 1.1em;
  color: #034FEF;
}
label {
  display: block;
  margin-bottom: 1em;
  font-size: 0.95em;
}
select, input[type="number"] {
  width: 100%;
  padding: 0.7em;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-top: 0.5em;
  font-size: 1em;
  box-sizing: border-box;
}
.btn {
  background-color: #034FEF;
  color: white;
  padding: 1em;
  width: 100%;
  border: none;
  border-radius: 10px;
  font-size: 1em;
  cursor: pointer;
  transition: background-color 0.2s ease-in-out;
}
.btn:hover {
  background-color: #023dc0;
}
.result-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1em;
  margin-top: 2em;
}
.result-card {
  background-color: #ffffff;
  padding: 1em;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  text-align: center;
  font-size: 0.95em;
}
.result-card strong {
  display: block;
  font-size: 1.3em;
  margin-top: 0.5em;
  color: #034FEF;
}
.result-card.total {
  background-color: #034FEF;
  color: #ffffff;
  font-weight: bold;
}
.result-card.total strong {
  background-color: #034FEF;
  color: #ffffff;
  font-weight: bold;
}

.footer {
  text-align: center;
  padding: 2em;
  color: #777;
  font-size: 0.9em;
}
.hidden {
  display: none;
}

/* Grid layout for the three main groups */
.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5em;
  align-items: start;
}

/* Responsive fallbacks */
@media (max-width: 1100px) {
  .form-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* Footer signature image */
.footer-signature {
  display: block;
  max-width: 360px;
  width: 100%;
  height: auto;
  margin: 0 auto 0.75em auto;
}

/* Resumo (below the calculate button) */
.resumo-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1em;
  margin-top: 1em;
}
.resumo-item {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  padding: 0.9em 1em;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.resumo-item span {
  color: #4a4a4a;
  font-size: 0.95rem;
}
.resumo-item strong {
  font-size: 1.05rem;
  letter-spacing: 0.2px;
}

@media (max-width: 1100px) {
  .resumo-container { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .resumo-container { grid-template-columns: 1fr; }
}