:root {
  --hl-border: #d9d9d9;
  --hl-muted: #6a6a6a;
  --hl-soft: #f7f7f5;
  --hl-text: #1f1f1f;
  --hl-accent: #3a3a3a;
}

.hl-engagement-card,
.hl-engagement-single {
  color: var(--hl-text);
}

.hl-engagement-card {
  border-top: 1px solid var(--hl-border);
  padding: 1.4rem 0 1.6rem;
}

.hl-card-kicker {
  font-size: .75rem;
  line-height: 1.2;
  letter-spacing: .09em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: .45rem;
  color: var(--hl-muted);
}

.hl-card-series {
  font-size: .9rem;
  margin-bottom: .4rem;
}

.hl-card-series a,
.hl-single-topics a {
  text-decoration: none;
}

.hl-card-title,
.hl-single-title {
  margin: 0;
  line-height: 1.2;
  font-weight: 600;
}

.hl-card-title {
  font-size: clamp(1.25rem, 2vw, 1.7rem);
}

.hl-card-title a {
  color: inherit;
  text-decoration: none;
}

.hl-card-title a:hover,
.hl-card-series a:hover,
.hl-single-topics a:hover {
  text-decoration: underline;
}

.hl-card-special,
.hl-card-meta,
.hl-card-date {
  font-size: .95rem;
  line-height: 1.5;
}

.hl-card-special {
  margin-top: .65rem;
}

.hl-card-meta,
.hl-card-date {
  color: var(--hl-muted);
  margin-top: .18rem;
}

.hl-card-excerpt {
  margin-top: .9rem;
  max-width: 54rem;
}

.hl-card-excerpt p:last-child {
  margin-bottom: 0;
}

.hl-card-footer {
  margin-top: .9rem;
}

.hl-card-link {
  text-decoration: none;
  font-weight: 600;
}

.hl-card-link:hover {
  text-decoration: underline;
}

/* subtle visual distinction by type */
.hl-type-conference { border-left: 3px solid var(--hl-accent); padding-left: 1rem; }
.hl-type-talk,
.hl-type-workshop { border-left: 3px solid #777; padding-left: 1rem; }
.hl-type-course { border-left: 3px solid #aaa; padding-left: 1rem; }
.hl-type-sermon { border-left: 3px solid #c2c2c2; padding-left: 1rem; }

/* single entry */
.hl-engagement-single {
  max-width: 960px;
  margin: 0 auto;
}

.hl-single-header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--hl-border);
}

.hl-single-title {
  font-size: clamp(2rem, 5vw, 4rem);
  max-width: 16ch;
}

.hl-single-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  margin-top: .8rem;
  color: var(--hl-muted);
}

.hl-single-special {
  margin-top: 1.1rem;
  font-size: 1.05rem;
  font-weight: 500;
}

.hl-single-meta-stack {
  margin-top: 1rem;
  display: grid;
  gap: .35rem;
  color: var(--hl-muted);
}

.hl-single-intro {
  margin: 2rem 0;
  font-size: 1.15rem;
  line-height: 1.75;
  max-width: 760px;
}

.hl-single-content {
  max-width: 760px;
  line-height: 1.75;
}

.hl-single-links {
  margin-top: 3rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--hl-border);
}

.hl-links-title {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
  margin-bottom: .8rem;
  color: var(--hl-muted);
}

.hl-links-list {
  display: flex;
  gap: .75rem 1.25rem;
  flex-wrap: wrap;
}

.hl-links-list a {
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 640px) {
  .hl-type-conference,
  .hl-type-talk,
  .hl-type-workshop,
  .hl-type-course,
  .hl-type-sermon {
    padding-left: .75rem;
  }
}