/* Case study -------------------------------------------------------- */
/* The project template (project.css) with a long-form article after the
   diagram. Text runs at a readable measure; the pipeline and tables may
   run wider. */
.case__title {
  max-width: 15em;
  font-size: clamp(40px, 6vw, 84px);
}

.case__body {
  margin-top: clamp(56px, 7vw, 104px);
}

.case__body > * {
  max-width: 46rem;
}

.case__body > .flow,
.case__body > .case__table {
  max-width: 62rem;
}

.case__body :where(p:not(.mono, .links)),
.case__list {
  margin-top: 16px;
  color: var(--muted);
}

.case__body h2 {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.case__body > h2:first-child {
  margin-top: 0;
}

.case__body strong {
  color: var(--text);
}

.case__body em {
  font-style: italic;
}

.case__body code {
  padding: 1px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.86em;
}

.case__list {
  display: grid;
  gap: 12px;
}

.case__list li {
  position: relative;
  padding-left: 20px;
}

.case__list li::before {
  content: "";
  position: absolute;
  top: 0.8em;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--dim);
}

.case__list--numbered {
  counter-reset: step;
}

.case__list--numbered li {
  padding-left: 34px;
  counter-increment: step;
}

.case__list--numbered li::before {
  content: counter(step, decimal-leading-zero);
  top: 0.3em;
  width: auto;
  height: auto;
  background: none;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
}

.case__sub {
  margin-top: 36px;
  font-size: var(--t-card);
  font-weight: 500;
}

.case__body .case__note,
.case__body .case__fine,
.case__body .case__code {
  color: var(--dim);
  font-size: var(--t-small);
}

.case__fine {
  padding-top: 40px;
}

/* Pipeline: three lanes of steps, the one model step in the signal blue. */
.flow {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.flow__lane {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}

.flow__label {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.flow__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 6px;
  margin-top: 12px;
}

.flow__steps li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.flow__steps li:not(:last-child)::after {
  content: "→";
  color: var(--dim);
}

.flow__step {
  padding: 4px 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: var(--t-small);
}

.flow__step--model {
  border-color: var(--signal);
  color: var(--signal);
}

.case__decisions {
  display: grid;
  gap: 28px;
  margin-top: 24px;
  counter-reset: decision;
}

.case__decisions > li {
  position: relative;
  padding-left: 48px;
  counter-increment: decision;
}

.case__decisions > li::before {
  content: counter(decision, decimal-leading-zero);
  position: absolute;
  top: 4px;
  left: 0;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
}

.case__decisions h3 {
  font-size: var(--t-card);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.case__table {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}

.case__table table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--t-small);
}

.case__table th,
.case__table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.case__table td {
  color: var(--muted);
}

.case__table thead th {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.case__table tbody th {
  font-weight: 500;
}

.case__table tbody tr:last-child th,
.case__table tbody tr:last-child td {
  border-bottom: 0;
}

.case__table:focus-visible {
  outline-offset: 4px;
}

.case__links {
  margin-top: 48px;
}

@media (max-width: 719px) {
  .case__decisions > li {
    padding-left: 0;
    padding-top: 28px;
  }
}