.experiment-hub-hero {
  margin-bottom: var(--space-10);
  padding: var(--space-10) var(--space-8);
  background: #f7f8f5;
  border-top: 3px solid var(--gold-primary);
  border-bottom: 1px solid var(--cream-border);
}

.experiment-hub-hero__eyebrow,
.experiment-hub-section__eyebrow,
.experiment-hub-standard__label,
.experiment-hub-path__label {
  margin-bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: var(--weight-medium);
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--gold-primary);
}

.experiment-hub-hero__title {
  max-width: 820px;
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 5vw, 4.55rem);
  font-weight: var(--weight-extralight);
  letter-spacing: 0;
  line-height: 1.05;
  color: var(--ink-primary);
}

.experiment-hub-hero__lead {
  max-width: 730px;
  margin: 0 0 var(--space-6);
  font-size: var(--text-lg);
  font-weight: var(--weight-light);
  line-height: 1.7;
  color: var(--ink-secondary);
}

.experiment-hub-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-8);
}

.experiment-hub-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.experiment-hub-metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-height: 106px;
  padding: var(--space-5);
  background: #ffffff;
  border: 1px solid var(--cream-border);
  border-radius: 8px;
  text-decoration: none;
}

.experiment-hub-metric:hover {
  border-color: var(--cream-border-mid);
}

.experiment-hub-metric__value {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-light);
  line-height: 1;
  color: var(--ink-primary);
}

.experiment-hub-metric__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--ink-secondary);
}

.experiment-hub-section {
  margin-bottom: var(--space-12);
}

.experiment-hub-section__head {
  margin-bottom: var(--space-6);
}

.experiment-hub-section__title {
  max-width: 780px;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-light);
  letter-spacing: 0;
  line-height: 1.18;
  color: var(--ink-primary);
}

.experiment-hub-section__intro {
  max-width: 720px;
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--ink-secondary);
}

.experiment-hub-feature {
  display: block;
  padding: var(--space-7);
  background: #15211a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: #ffffff;
  text-decoration: none;
}

.experiment-hub-feature:hover {
  border-color: rgba(201, 168, 76, 0.55);
}

.experiment-hub-feature__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-4);
}

.experiment-hub-feature h3 {
  max-width: 860px;
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-light);
  letter-spacing: 0;
  line-height: 1.18;
  color: #ffffff;
}

.experiment-hub-feature__summary {
  max-width: 850px;
  margin: 0 0 var(--space-5);
  font-size: var(--text-lg);
  line-height: 1.7;
  color: #f6f4ea;
}

.experiment-hub-feature__proof {
  max-width: 860px;
  margin-bottom: var(--space-5);
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  font-size: var(--text-base);
  line-height: 1.65;
  color: #f6f4ea;
}

.experiment-hub-feature__proof span,
.experiment-hub-feature__cta {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: var(--weight-medium);
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--gold-primary);
}

.experiment-hub-feature__proof span {
  margin-bottom: var(--space-2);
}

.experiment-hub-standard-grid,
.experiment-hub-path-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.experiment-hub-standard,
.experiment-hub-path,
.experiment-library-card {
  padding: var(--space-6);
  background: #ffffff;
  border: 1px solid var(--cream-border);
  border-radius: 8px;
}

.experiment-hub-standard h3,
.experiment-hub-path__title {
  display: block;
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-light);
  letter-spacing: 0;
  line-height: 1.25;
  color: var(--ink-primary);
}

.experiment-hub-standard p,
.experiment-hub-path__body {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink-secondary);
}

.experiment-hub-path {
  display: block;
  color: inherit;
  text-decoration: none;
}

.experiment-hub-path:hover {
  border-color: var(--cream-border-mid);
}

.experiment-hub-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.experiment-library-card {
  display: flex;
  flex-direction: column;
  min-height: 330px;
}

.experiment-library-card__meta,
.experiment-library-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.experiment-library-card__meta {
  margin-bottom: var(--space-4);
}

.experiment-library-card__date {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--ink-secondary);
}

.experiment-library-card__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-light);
  letter-spacing: 0;
  line-height: 1.2;
}

.experiment-library-card__title a {
  color: var(--ink-primary);
  text-decoration: none;
}

.experiment-library-card__title a:hover {
  color: var(--gold-muted);
}

.experiment-library-card__summary {
  margin: 0 0 var(--space-5);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink-secondary);
}

.experiment-library-card__tags {
  margin-top: auto;
}

.experiment-library-card__footer {
  margin-top: var(--space-5);
}

@media (max-width: 900px) {
  .experiment-hub-metrics,
  .experiment-hub-standard-grid,
  .experiment-hub-path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .experiment-hub-hero {
    padding: var(--space-7) var(--space-5);
  }

  .experiment-hub-metrics,
  .experiment-hub-standard-grid,
  .experiment-hub-path-grid {
    grid-template-columns: 1fr;
  }

  .experiment-hub-feature,
  .experiment-hub-standard,
  .experiment-hub-path,
  .experiment-library-card {
    padding: var(--space-5);
  }
}