.utility-calculator-shell {
  background: #ffffff;
  border-radius: 18px;
  border: 1px solid rgba(13, 110, 253, 0.08);
  box-shadow: 0 18px 40px rgba(13, 45, 80, 0.08);
  padding: 32px 28px;
  margin-bottom: 32px;
}

.utility-calculator-shell + .utility-calculator-shell {
  margin-top: 32px;
}

.utility-calculator-shell h1,
.utility-calculator-shell h2,
.utility-calculator-shell h3 {
  font-weight: 600;
  color: #1a2e45;
}

.utility-calculator-form {
  display: grid;
  gap: 18px;
}

.utility-calculator-form .utility-fields {
  display: grid;
  gap: 18px;
}

@media (min-width: 768px) {
  .utility-calculator-form .utility-fields.utility-fields--split-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .utility-calculator-form .utility-fields.utility-fields--split-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.utility-calculator-form label {
  font-size: 0.95rem;
  font-weight: 500;
  color: #1f3651;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.utility-calculator-form .form-control,
.utility-calculator-form select.form-control {
  border-radius: 12px;
  border: 1px solid #d9e2ef;
  padding: 12px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.utility-calculator-form .form-control:focus,
.utility-calculator-form select.form-control:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.12);
}

.utility-calculator-submit {
  justify-self: flex-start;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.utility-calculator-submit i {
  font-size: 1rem;
}

.utility-form-error {
  background: rgba(220, 53, 69, 0.08);
  border: 1px solid rgba(220, 53, 69, 0.2);
  color: #821622;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 500;
  display: none;
}

.utility-form-error[aria-hidden="false"] {
  display: block;
}

.utility-field-group[data-invalid="true"] .form-control,
.utility-field-group[data-invalid="true"] select.form-control {
  border-color: rgba(220, 53, 69, 0.55);
  box-shadow: 0 0 0 0.15rem rgba(220, 53, 69, 0.18);
}

.utility-field-group[data-invalid="true"] label::after {
  content: attr(data-error-message);
  color: #c01d2f;
  font-weight: 500;
  font-size: 0.8rem;
  margin-left: auto;
  margin-right: 0;
}

.utility-results {
  margin-top: 28px;
  border-radius: 16px;
  border: 1px dashed rgba(13, 110, 253, 0.25);
  background: rgba(13, 110, 253, 0.04);
  padding: 24px;
}

.utility-results[hidden] {
  display: none !important;
}

.utility-results__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.utility-results__heading h2 {
  font-size: 1.15rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.utility-results__heading h2 .utility-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  width: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0d6efd, #6610f2);
  color: #fff;
  font-size: 0.9rem;
}

.utility-results__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.utility-result-card {
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(13, 110, 253, 0.12);
  padding: 16px 18px;
  box-shadow: 0 12px 28px rgba(12, 66, 133, 0.08);
}

.utility-result-card dt {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #6b7c93;
  margin-bottom: 6px;
}

.utility-result-card dd {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: #0c3c78;
}

.utility-result-note {
  font-size: 0.9rem;
  color: #516279;
  margin-top: 10px;
}

.utility-info-block {
  border-radius: 16px;
  border: 1px solid rgba(79, 94, 113, 0.2);
  background: rgba(79, 94, 113, 0.05);
  padding: 20px 24px;
}

.utility-info-block details {
  border-radius: 12px;
  border: 1px solid rgba(13, 110, 253, 0.18);
  background: #fff;
  padding: 16px 20px;
}

.utility-info-block details + details {
  margin-top: 16px;
}

.utility-info-block summary {
  cursor: pointer;
  font-weight: 600;
  color: #0d47a1;
  display: flex;
  align-items: center;
  gap: 10px;
  outline: none;
}

.utility-info-block summary::before {
  content: '\25BC';
  font-size: 0.75rem;
  transform: rotate(-90deg);
  transition: transform 0.2s ease;
}

.utility-info-block details[open] summary::before {
  transform: rotate(0deg);
}

.utility-info-block details p,
.utility-info-block details ul,
.utility-info-block details ol {
  margin-top: 12px;
  margin-bottom: 0;
  color: #22364b;
}

.utility-info-block code {
  background: rgba(13, 110, 253, 0.1);
  color: #0d47a1;
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.85rem;
}

.utility-random-output {
  display: grid;
  gap: 12px;
}

.utility-random-output textarea {
  font-family: "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  min-height: 160px;
  border-radius: 12px;
  border: 1px solid rgba(13, 110, 253, 0.2);
  background: rgba(13, 110, 253, 0.05);
  padding: 16px;
  resize: vertical;
}

.utility-random-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.utility-random-actions button {
  border-radius: 30px;
  padding: 8px 18px;
  font-weight: 600;
}

.utility-inline-help {
  font-size: 0.85rem;
  color: #5f738a;
}

.utility-calculator-shell .badge-pill {
  border-radius: 999px;
  padding: 6px 12px;
}

.utility-calculator-shell .badge-pill i {
  margin-right: 6px;
}

.utility-calculator-shell .text-muted {
  color: #6c7a89 !important;
}