.guided-brief-shell {
  grid-template-columns: minmax(0, 1fr) minmax(400px, 0.82fr);
}

.guided-brief-form {
  display: grid;
  gap: 34px;
}

.brief-step {
  min-width: 0;
  margin: 0;
  border: 0;
  border-top: 2px solid var(--teal-800);
  padding: 24px 0 0;
}

.brief-step legend {
  padding: 0 12px 0 0;
  color: var(--teal-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-weight: 700;
}

.brief-step legend span {
  display: block;
  margin-bottom: 4px;
  color: var(--teal-700);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.brief-step-intro {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.brief-decision-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 22px;
}

.brief-decision-grid label,
.brief-constraint-grid label {
  position: relative;
  min-width: 0;
}

.brief-decision-grid input,
.brief-constraint-grid input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.brief-decision-grid label > span {
  min-height: 108px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  padding: 16px;
}

.brief-decision-grid strong {
  color: var(--teal-900);
  line-height: 1.25;
}

.brief-decision-grid small {
  margin-top: 7px;
  color: var(--muted);
  line-height: 1.3;
}

.brief-decision-grid input:focus + span,
.brief-constraint-grid input:focus + span {
  outline: 3px solid rgba(31, 89, 96, 0.24);
  outline-offset: 2px;
}

.brief-decision-grid input:checked + span {
  border-color: var(--teal-900);
  background: var(--teal-900);
}

.brief-decision-grid input:checked + span strong,
.brief-decision-grid input:checked + span small {
  color: var(--white);
}

.brief-scenario-guide {
  border-left: 4px solid var(--sage);
  background: var(--sage-soft);
  padding: 20px 22px;
}

.brief-scenario-guide h3 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.brief-scenario-guide p {
  margin: 0;
  color: var(--charcoal);
  font-size: 0.9rem;
}

.brief-constraint-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.brief-constraint-grid label > span {
  min-height: 58px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  padding: 12px 14px;
  color: var(--charcoal);
  font-size: 0.84rem;
  font-weight: 700;
}

.brief-constraint-grid input:checked + span {
  border-color: var(--teal-800);
  background: var(--sage-soft);
  color: var(--teal-900);
}

.brief-constraint-grid input:checked + span::before {
  content: "\2713";
  margin-right: 9px;
  color: var(--teal-700);
  font-weight: 900;
}

.brief-empty-list {
  margin: 24px 0 0;
  padding-left: 20px;
  color: var(--charcoal);
}

.brief-empty-list li {
  margin: 10px 0;
}

.brief-recommendation {
  margin: 22px 0 30px;
  border-top: 4px solid var(--teal-700);
  background: var(--sage-soft);
  padding: 22px;
}

.brief-recommendation[data-stage="discovery"] {
  border-top-color: #8c4d3d;
  background: #f4e8e4;
}

.brief-recommendation[data-stage="validate"] {
  border-top-color: #8a6a22;
  background: #f4eddc;
}

.brief-recommendation h3,
.brief-recommendation p {
  margin-top: 0;
}

.brief-output-section {
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding-top: 26px;
}

.brief-output-section h3 {
  margin-bottom: 12px;
}

.brief-output-section p,
.brief-output-section li {
  color: var(--charcoal);
}

.brief-output-section ul,
.brief-output-section ol {
  margin: 0;
  padding-left: 21px;
}

.brief-output-section li {
  margin: 8px 0;
}

.brief-decision-callout {
  border-left: 4px solid var(--teal-700);
  padding-left: 18px;
  color: var(--teal-900);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  line-height: 1.35;
}

@media (max-width: 940px) {
  .guided-brief-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .brief-decision-grid,
  .brief-constraint-grid {
    grid-template-columns: 1fr;
  }

  .brief-decision-grid label > span {
    min-height: 86px;
  }
}

@media print {
  .guided-brief-form,
  .tool-explainer {
    display: none !important;
  }
}