.reference-home-page {
  min-height: 100vh;
  background:
    radial-gradient(72% 52% at 15% -10%, color-mix(in oklab, var(--accent) 20%, transparent), transparent 68%),
    var(--bg);
  color: var(--text);
}

/* tool-chrome uses a viewport-relative inner width inside a padded header.
 * Keep the Reference shell inside that padding on narrow viewports. */
.reference-home-page .tool-header-inner {
  width: min(1140px, 100%);
}

.reference-home-shell {
  width: min(1180px, 94vw);
  margin: 0 auto;
  padding: clamp(26px, 4vw, 48px) 0 28px;
}

.reference-home-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
  align-items: end;
  gap: clamp(28px, 6vw, 72px);
  padding: 18px 2px clamp(28px, 5vw, 44px);
  border-bottom: 1px solid color-mix(in oklab, var(--border) 84%, transparent);
}

.reference-home-eyebrow,
.reference-home-section-kicker {
  margin: 0;
  color: var(--accent-2);
  font-size: 11px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.reference-home-hero h1 {
  margin: 8px 0 0;
  font-size: clamp(42px, 7vw, 72px);
  line-height: 1;
  letter-spacing: -0.045em;
}

.reference-home-discovery {
  min-width: 0;
}

.reference-home-lead {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(14px, 1.8vw, 17px);
  line-height: 1.62;
}

.reference-search {
  margin-top: 18px;
}

.reference-search-label {
  display: block;
  margin-bottom: 7px;
  color: var(--text);
  font-size: 12px;
  line-height: 1.2;
  font-weight: 700;
}

.reference-search-field {
  min-height: 50px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: 1px solid color-mix(in oklab, var(--accent) 36%, var(--border));
  border-radius: 14px;
  background: color-mix(in oklab, var(--panel-soft) 88%, transparent);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}

.reference-search-field:focus-within {
  border-color: color-mix(in oklab, var(--accent) 68%, var(--border));
  background: color-mix(in oklab, var(--panel) 92%, transparent);
  box-shadow: var(--shadow-md);
}

.reference-search-field svg {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
  color: var(--muted);
}

.reference-search-field input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

.reference-search-field input::placeholder {
  color: color-mix(in oklab, var(--muted) 78%, transparent);
}

.reference-search-hint {
  margin: 7px 2px 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.reference-home-library {
  margin-top: clamp(28px, 5vw, 48px);
}

.reference-home-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.reference-home-section-head h2 {
  margin: 4px 0 0;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.02em;
}

.reference-home-section-head > p {
  margin: 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  text-align: right;
}

.reference-library-results {
  display: grid;
  gap: 18px;
}

.reference-library-group {
  display: grid;
  grid-template-columns: minmax(140px, 190px) minmax(0, 1fr);
  gap: 18px;
  padding-top: 16px;
  border-top: 1px solid color-mix(in oklab, var(--border) 82%, transparent);
}

.reference-library-group-label {
  padding: 6px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reference-library-group-items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.reference-home-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 118px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid color-mix(in oklab, var(--border) 86%, transparent);
  background: color-mix(in oklab, var(--panel-soft) 92%, #000 8%);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out);
}

.reference-home-card:hover,
.reference-home-card:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 56%, var(--border));
  box-shadow: var(--shadow-md);
  outline: none;
}

.reference-home-card-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in oklab, var(--accent) 44%, var(--border));
  background: color-mix(in oklab, var(--accent) 16%, transparent);
  color: var(--accent-2);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.05em;
}

.reference-home-card-main {
  min-width: 0;
  display: grid;
  gap: 6px;
}

.reference-home-card-main > strong {
  font-size: 17px;
  line-height: 1.2;
}

.reference-home-card-description {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.reference-home-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.reference-home-card-meta span {
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--border) 84%, transparent);
  color: var(--muted);
  background: color-mix(in oklab, var(--panel) 78%, transparent);
  font-size: 10px;
  line-height: 1.2;
}

.reference-home-card-arrow {
  color: var(--accent-2);
  font-size: 20px;
  line-height: 1;
}

.reference-library-empty,
.reference-library-noscript {
  margin: 0;
  padding: 18px;
  border: 1px dashed color-mix(in oklab, var(--border) 86%, transparent);
  border-radius: 14px;
  background: color-mix(in oklab, var(--panel-soft) 70%, transparent);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.reference-library-empty[hidden] {
  display: none;
}

.reference-library-noscript a {
  color: var(--accent-2);
}

.reference-home-footer {
  margin-top: 36px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) and (min-width: 701px) {
  .reference-library-group-items {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .reference-home-shell {
    padding-top: 18px;
  }

  .reference-home-hero {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 16px;
    padding-top: 8px;
  }

  .reference-home-hero h1 {
    font-size: clamp(38px, 13vw, 54px);
  }

  .reference-home-lead {
    font-size: 14px;
  }

  .reference-search {
    margin-top: 14px;
  }

  .reference-search-field {
    min-height: 48px;
  }

  .reference-home-section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .reference-home-section-head > p {
    text-align: left;
  }

  .reference-library-group {
    grid-template-columns: 1fr;
    gap: 9px;
    padding-top: 13px;
  }

  .reference-library-group-label {
    padding-top: 0;
  }

  .reference-library-group-items {
    grid-template-columns: 1fr;
  }

  .reference-home-card {
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 0;
    padding: 13px;
  }

  .reference-home-card-mark {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .reference-home-card-arrow {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reference-search-field,
  .reference-home-card {
    transition: none;
  }

  .reference-home-card:hover,
  .reference-home-card:focus-visible {
    transform: none;
  }
}