/* Reference library pages (hops / yeast / malt / sources).
   Uses the tokens defined in style.css; no new colours or type families. */

.ref-main {
  padding-block: clamp(2rem, 1rem + 3vw, 4rem) var(--space-section);
}

.ref-article {
  max-width: 880px;
}

.ref-article--wide {
  max-width: var(--container-max);
}

/* breadcrumbs -------------------------------------------------------------- */
.ref-crumbs ol {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  color: var(--color-on-surface-muted);
}

.ref-crumbs li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--color-outline-soft);
}

.ref-crumbs a {
  color: inherit;
  text-decoration: none;
}

.ref-crumbs a:hover,
.ref-crumbs a:focus-visible {
  color: var(--color-primary);
  text-decoration: underline;
}

/* page head ---------------------------------------------------------------- */
.ref-head {
  padding-bottom: 1.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--color-outline-soft);
}

.ref-eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.ref-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-on-surface);
}

.ref-lede {
  margin: 0;
  max-width: 64ch;
  font-size: var(--text-body-lg);
  line-height: 1.55;
  color: var(--color-on-surface-muted);
}

.ref-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.75rem 1.5rem;
  margin: 1.5rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--color-outline-soft);
}

.ref-facts dt {
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-on-surface-muted);
  margin-bottom: 0.25rem;
}

.ref-facts dd {
  margin: 0;
  font-weight: 600;
  color: var(--color-on-surface);
}

/* sections ----------------------------------------------------------------- */
.ref-section {
  margin-top: 2.5rem;
}

.ref-section h2 {
  position: relative;
  margin: 0 0 0.75rem;
  padding-left: 0.9rem;
  font-family: var(--font-display);
  font-size: var(--text-headline-md);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.ref-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  bottom: 0.2em;
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.ref-section p {
  margin: 0 0 0.75rem;
  max-width: 70ch;
  line-height: 1.6;
}

.ref-note,
.ref-source {
  font-size: 0.9rem;
  color: var(--color-on-surface-muted);
}

.ref-section a:not(.cta-pill) {
  color: var(--color-primary-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

/* tables ------------------------------------------------------------------- */
.ref-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-outline-soft);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.ref-table th,
.ref-table td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-surface-high);
}

.ref-table thead th {
  position: sticky;
  top: 0;
  background: var(--color-surface-low);
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-on-surface-muted);
  white-space: nowrap;
}

.ref-table tbody th {
  font-weight: 600;
  white-space: nowrap;
}

.ref-table td {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.ref-table td.ref-table__aroma,
.ref-table td.ref-table__source {
  font-family: var(--font-body);
}

.ref-table__source {
  min-width: 16rem;
  font-size: 0.85rem;
  color: var(--color-on-surface-muted);
}

.ref-table__note {
  color: var(--color-on-surface-muted);
}

.ref-table tbody tr:nth-child(even) {
  background: var(--color-bg);
}

.ref-table tbody tr:target {
  background: var(--color-primary-soft);
}

/* badges ------------------------------------------------------------------- */
.ref-badge,
.ref-conf,
.ref-chip {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  line-height: 1.5;
  white-space: nowrap;
}

.ref-badge--high {
  background: var(--color-primary-deep);
  color: var(--color-on-primary);
}

.ref-badge--significant {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
}

.ref-badge--low {
  background: var(--color-surface-high);
  color: var(--color-on-surface-muted);
}

.ref-badge--negligible,
.ref-badge--unknown {
  background: transparent;
  color: var(--color-on-surface-muted);
  border: 1px dashed var(--color-outline-soft);
}

.ref-badge--avail-mainstream {
  background: var(--color-surface-high);
  color: var(--color-on-surface);
}

.ref-badge--avail-limited {
  background: transparent;
  color: var(--color-axis-malt);
  border: 1px solid currentColor;
}

.ref-badge--avail-pro {
  background: transparent;
  color: var(--color-axis-booster);
  border: 1px solid currentColor;
}

.ref-badge--avail-unknown {
  border: 1px dashed var(--color-outline-soft);
}

.ref-conf {
  border: 1px solid var(--color-outline-soft);
  color: var(--color-on-surface-muted);
  background: var(--color-surface);
}

.ref-conf--verified {
  color: var(--color-primary-deep);
  border-color: var(--color-primary-soft);
}

.ref-conf--estimate {
  color: var(--color-axis-malt);
  border-color: currentColor;
}

.ref-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: none;
}

.ref-chip {
  background: var(--color-surface);
  border: 1px solid var(--color-outline-soft);
  color: var(--color-on-surface);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.ref-chip:hover,
.ref-chip:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary-deep);
}

.ref-cite {
  font-family: var(--font-mono);
  font-size: 0.8em;
  white-space: nowrap;
}

.ref-cite--missing {
  color: var(--color-axis-booster);
}

/* tiers / lists ------------------------------------------------------------ */
.ref-tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
  margin: 0 0 1rem;
}

.ref-tier {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-outline-soft);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.ref-tier__label {
  font-weight: 600;
}

.ref-lotnotes {
  margin: 0.75rem 0 0;
  padding-left: 0;
  list-style: none;
  font-size: 0.9rem;
  color: var(--color-on-surface-muted);
  line-height: 1.55;
}

.ref-lotnotes li {
  margin-bottom: 0.4rem;
}

.ref-lotnotes strong {
  font-family: var(--font-mono);
  color: var(--color-on-surface);
}

.ref-legend,
.ref-evidence,
.ref-sources ul,
.ref-biblio {
  margin: 0 0 0.75rem;
  padding-left: 1.25rem;
  line-height: 1.6;
}

.ref-legend {
  list-style: none;
  padding-left: 0;
}

.ref-legend li {
  margin-bottom: 0.5rem;
}

.ref-legend li .ref-badge {
  margin-right: 0.4rem;
}

.ref-evidence li,
.ref-sources li,
.ref-biblio li {
  margin-bottom: 0.5rem;
}

.ref-quote {
  margin: 0 0 0.75rem;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--color-primary-soft);
  background: var(--color-surface);
  color: var(--color-on-surface);
  font-style: italic;
  max-width: 70ch;
}

/* bibliography ------------------------------------------------------------- */
.ref-biblio li:target {
  background: var(--color-primary-soft);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.5rem;
}

.ref-biblio__label {
  font-family: var(--font-mono);
  font-weight: 500;
  margin-right: 0.5rem;
}

.ref-biblio__link {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.ref-biblio__use {
  font-size: 0.85rem;
  color: var(--color-on-surface-muted);
}

/* CTA ---------------------------------------------------------------------- */
.ref-cta {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-surface-low);
}

.ref-cta .cta-pill {
  margin-top: 0.25rem;
}

.ref-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: 0.25rem;
}

.ref-cta__actions .cta-pill {
  margin-top: 0;
}

.ref-head .ref-cta__actions {
  margin-top: 1.25rem;
}

.cta-pill--ghost {
  color: var(--color-primary-deep);
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

.cta-pill--ghost:hover {
  color: var(--color-on-primary);
  background: var(--color-primary-deep);
}

.ref-cta__note {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--color-on-surface-muted);
}

/* calculator page ------------------------------------------------------------ */
.calc-shot {
  margin: 2rem 0 0;
}

.calc-shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-outline-soft);
  border-radius: var(--radius-lg);
}

.calc-shot figcaption {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-on-surface-muted);
}

.calc-cols {
  display: grid;
  gap: 0 var(--space-12);
}

@media (min-width: 720px) {
  .calc-cols {
    grid-template-columns: 1fr 1fr;
  }
}

.ref-section ul.calc-list {
  margin: 0 0 0.75rem;
  padding-left: 1.1rem;
  max-width: 70ch;
  line-height: 1.6;
}

.calc-list li + li {
  margin-top: 0.35rem;
}

.ref-section h3.calc-q {
  margin: 1.5rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: var(--text-body-lg);
  font-weight: 700;
  line-height: 1.3;
}

.ref-footer-data {
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
}

@media (max-width: 640px) {
  .ref-tier {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* hub: reference library entrance ------------------------------------------ */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.entry-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem;
  border: 1px solid var(--color-outline-soft);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-on-surface);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.entry-card:hover,
.entry-card:focus-visible {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.entry-card__count {
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.entry-card__title {
  font-family: var(--font-display);
  font-size: var(--text-headline-md);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.entry-card__body {
  color: var(--color-on-surface-muted);
  line-height: 1.55;
}

.entry-card__cta {
  margin-top: auto;
  font-weight: 600;
  color: var(--color-primary-deep);
}

.entry-card__cta::after {
  content: " →";
}

.hop-bars .ref-chips {
  margin: 0.5rem 0 0.75rem;
}