/*
 * Discover tree
 * One visual system for the Discover hub, every collection index, and the
 * resource, book, and subject pages reached from those indexes.
 */

body.discover-root,
body.discover-collection,
body.discover-resource-detail,
body.discover-bits-page,
body.discover-book-hub {
  --discover-green: #58a936;
  --discover-lime: #b7f34b;
  --discover-dark: #152c1b;
  --discover-coral: #b85a3d;
}

body.discover-root .page,
body.discover-collection .page,
body.discover-book-hub .page {
  max-width: 1320px;
}

/* Level 1 — Discover hub */
.discover-root .discover-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr);
  gap: clamp(28px, 5vw, 72px);
  min-height: 330px;
  margin-bottom: 52px;
  padding: clamp(30px, 5vw, 62px);
  overflow: hidden;
  border-radius: 28px;
  color: #eff8ef;
  background:
    radial-gradient(circle at 105% -10%, rgba(183, 243, 75, .23), transparent 45%),
    var(--discover-dark);
  box-shadow: 0 22px 60px rgba(21, 44, 27, .17);
}

.discover-root .discover-hero::after {
  content: "";
  position: absolute;
  right: -110px;
  bottom: -150px;
  width: 330px;
  height: 330px;
  border: 1px solid rgba(183, 243, 75, .26);
  border-radius: 50%;
  box-shadow:
    0 0 0 46px rgba(183, 243, 75, .045),
    0 0 0 92px rgba(183, 243, 75, .025);
}

.discover-hero-copy,
.discover-hero-stats {
  position: relative;
  z-index: 1;
}

.discover-eyebrow {
  margin: 0 0 16px;
  color: var(--discover-lime);
  font: 800 10px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.discover-root .discover-hero h1 {
  max-width: 14ch;
  margin: 0 0 20px;
  color: #f2f8f1;
  font-size: clamp(42px, 5.5vw, 72px);
  line-height: .94;
  letter-spacing: -.06em;
}

.discover-root .discover-hero .excerpt {
  max-width: 62ch;
  margin: 0;
  color: rgba(239, 248, 239, .72);
  font-size: 16px;
  line-height: 1.65;
}

.discover-hero-stats {
  display: grid;
  align-content: end;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.discover-hero-stat {
  min-width: 0;
  padding: 18px;
  border: 1px solid rgba(239, 248, 239, .16);
  border-radius: 14px;
  background: rgba(255, 255, 255, .045);
}

.discover-hero-stat strong {
  display: block;
  color: var(--discover-lime);
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1;
}

.discover-hero-stat span {
  display: block;
  margin-top: 7px;
  color: rgba(239, 248, 239, .58);
  font: 700 8px/1.3 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.discover-root .discover-index {
  margin-bottom: 44px;
}

.discover-tree-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 20px;
}

.discover-tree-heading .meta {
  margin: 0 0 9px;
  color: var(--discover-coral);
  font-weight: 800;
  letter-spacing: .12em;
}

.discover-tree-heading h2 {
  max-width: 20ch;
  margin: 0;
  font-size: clamp(30px, 3.7vw, 48px);
  line-height: .98;
  letter-spacing: -.045em;
}

.discover-tree-heading > p {
  max-width: 54ch;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.discover-tree-grid {
  display: grid;
  grid-template-columns: 1.45fr repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.discover-tree-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 320px;
  padding: 23px;
  border: 1.5px solid var(--ink);
  border-radius: 9px;
  color: var(--ink);
  text-decoration: none;
  background: color-mix(in srgb, var(--paper) 92%, white 8%);
  box-shadow: 3px 4px 0 color-mix(in srgb, var(--ink) 14%, transparent);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.discover-tree-card:hover {
  background: var(--yellow-soft);
  box-shadow: 6px 8px 0 color-mix(in srgb, var(--ink) 15%, transparent);
  transform: translateY(-5px);
}

.discover-tree-card.primary,
.discover-tree-card.primary:hover {
  color: #eff8ef;
  border-color: var(--discover-dark);
  background:
    radial-gradient(circle at 110% -10%, rgba(183, 243, 75, .22), transparent 52%),
    var(--discover-dark);
}

.discover-tree-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 42px;
}

.discover-tree-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ink);
  border-radius: 10px;
  color: var(--ink);
  background: var(--discover-green);
  font: 800 17px/1 var(--font-mono);
  transform: rotate(-3deg);
}

.discover-tree-card.primary .discover-tree-icon {
  border-color: transparent;
  background: var(--discover-lime);
}

.discover-tree-count {
  color: var(--ink-faint);
  font: 800 26px/1 var(--font-mono);
  letter-spacing: -.07em;
}

.discover-tree-card.primary .discover-tree-count {
  color: rgba(239, 248, 239, .6);
  font-size: 9px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.discover-tree-label {
  display: block;
  margin-bottom: 8px;
  color: var(--discover-coral);
  font: 800 8px/1 var(--font-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.discover-tree-card.primary .discover-tree-label {
  color: var(--discover-lime);
}

.discover-tree-card h3 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.1vw, 29px);
  line-height: 1.02;
  letter-spacing: -.035em;
}

.discover-tree-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.discover-tree-card.primary p {
  color: rgba(239, 248, 239, .7);
}

.discover-tree-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 24px;
  color: inherit;
  font: 800 9px/1 var(--font-mono);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.discover-tree-action b {
  font-size: 17px;
  transition: transform .18s ease;
}

.discover-tree-card:hover .discover-tree-action b {
  transform: translateX(5px);
}

/* Level 2 — collection and subject indexes */
.discover-collection .page > .meta:first-child,
.discover-bits-page .page > .meta:first-child,
.discover-book-hub .page > .meta:first-child {
  margin-bottom: 16px !important;
}

.discover-collection .page > .meta:first-child a,
.discover-bits-page .page > .meta:first-child a,
.discover-book-hub .page > .meta:first-child a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid color-mix(in srgb, var(--ink) 28%, transparent);
  border-radius: 999px;
  color: var(--ink-soft) !important;
  background: color-mix(in srgb, var(--paper) 88%, white);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.discover-collection .page > section:first-of-type,
.discover-bits-page .page > section:first-of-type {
  position: relative;
  margin-bottom: 30px !important;
  padding: clamp(24px, 3vw, 38px);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--ink) 22%, transparent);
  border-radius: 20px;
  background:
    linear-gradient(120deg, color-mix(in srgb, var(--paper-2) 54%, var(--paper)), var(--paper));
}

.discover-collection .page > section:first-of-type::after,
.discover-bits-page .page > section:first-of-type::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -90px;
  width: 220px;
  height: 220px;
  border: 1px solid color-mix(in srgb, var(--discover-green) 26%, transparent);
  border-radius: 50%;
  pointer-events: none;
}

.discover-collection .page > section:first-of-type .meta,
.discover-bits-page .page > section:first-of-type .meta {
  position: relative;
  z-index: 1;
  color: var(--discover-coral);
  font-weight: 800;
}

.discover-collection .page > section:first-of-type h1,
.discover-bits-page .page > section:first-of-type h1 {
  position: relative;
  z-index: 1;
  max-width: 18ch;
  margin: 8px 0 13px !important;
  font-size: clamp(36px, 4.4vw, 58px);
  line-height: .98;
  letter-spacing: -.05em;
}

.discover-collection .page > section:first-of-type .excerpt,
.discover-bits-page .page > section:first-of-type .excerpt {
  position: relative;
  z-index: 1;
  max-width: 72ch !important;
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
}

.discover-collection .home-search {
  max-width: 720px;
  margin: 0 0 34px !important;
}

.discover-collection .search-bar {
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper) 90%, white);
  box-shadow: 0 10px 28px rgba(21, 44, 27, .06);
}

.discover-collection .series-index,
.discover-bits-page .series-index,
.discover-book-hub .series-index {
  margin: 0 0 42px !important;
}

.discover-collection .series-index > .meta,
.discover-bits-page .series-index > .meta,
.discover-book-hub .series-index > .meta {
  margin: 0 0 16px !important;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--ink-faint);
  color: var(--discover-coral);
  font-size: 10px;
  font-weight: 800;
}

.discover-collection .series-index .post-grid,
.discover-bits-page .series-index .post-grid,
.discover-book-hub .series-index .post-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
  align-items: stretch;
}

.discover-collection .series-index .post-card,
.discover-collection .series-index .post-card:first-child,
.discover-bits-page .series-index .post-card,
.discover-bits-page .series-index .post-card:first-child,
.discover-book-hub .series-index .post-card,
.discover-book-hub .series-index .post-card:first-child {
  grid-column: auto;
  min-width: 0;
  min-height: 275px;
  padding: 23px;
  border: 1.5px solid color-mix(in srgb, var(--ink) 78%, transparent);
  border-radius: 9px;
  background: color-mix(in srgb, var(--paper) 90%, white);
  box-shadow: none;
}

.discover-collection .series-index .post-card:nth-child(3n + 1),
.discover-bits-page .series-index .post-card:nth-child(3n + 1),
.discover-book-hub .series-index .post-card:nth-child(3n + 1) {
  background: color-mix(in srgb, var(--yellow-soft) 24%, var(--paper));
}

.discover-collection .series-index .post-card:hover,
.discover-bits-page .series-index .post-card:hover,
.discover-book-hub .series-index .post-card:hover {
  border-color: var(--ink);
  box-shadow: 5px 6px 0 color-mix(in srgb, var(--ink) 16%, transparent);
  transform: translate(-2px, -3px);
}

.discover-collection .series-index .post-card .disco-icon,
.discover-bits-page .series-index .post-card .disco-icon,
.discover-book-hub .series-index .post-card .disco-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 22px;
  border: 1px solid var(--ink);
  border-radius: 9px;
  color: var(--ink);
  background: var(--discover-green);
  font-size: 16px;
}

.discover-collection .series-index .post-card .cat,
.discover-bits-page .series-index .post-card .cat,
.discover-book-hub .series-index .post-card .cat {
  position: static;
  align-self: flex-start;
  width: auto;
  margin: 0 0 10px;
  border: 0;
  border-radius: 0;
  color: var(--discover-coral);
  background: transparent;
  font-size: 8px;
  letter-spacing: .1em;
}

.discover-collection .series-index .post-card h3,
.discover-bits-page .series-index .post-card h3,
.discover-book-hub .series-index .post-card h3 {
  margin: 0 0 10px;
  font-size: clamp(21px, 2vw, 27px);
  line-height: 1.06;
}

.discover-collection .series-index .post-card .card-excerpt,
.discover-bits-page .series-index .post-card .card-excerpt,
.discover-book-hub .series-index .post-card .card-excerpt {
  display: -webkit-box;
  min-height: 5.9em;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  font-size: 13px;
  line-height: 1.5;
}

.discover-collection .series-index .post-card .card-meta,
.discover-bits-page .series-index .post-card .card-meta,
.discover-book-hub .series-index .post-card .card-meta {
  margin-top: auto;
  padding-top: 16px;
}

/* Level 3 — resource readers */
.discover-resource-detail .page {
  max-width: 1080px;
}

.discover-resource-detail article > .meta:first-child {
  margin-bottom: 16px !important;
}

.discover-resource-detail article > .meta:first-child a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid color-mix(in srgb, var(--ink) 26%, transparent);
  border-radius: 999px;
  color: var(--ink-soft) !important;
  background: color-mix(in srgb, var(--paper) 88%, white);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.discover-resource-detail .post-header {
  position: relative;
  margin-bottom: 34px;
  padding: clamp(28px, 4.5vw, 52px);
  overflow: hidden;
  border: 0;
  border-radius: 24px;
  color: #eff8ef;
  background:
    radial-gradient(circle at 106% -10%, rgba(183, 243, 75, .2), transparent 44%),
    var(--discover-dark);
  box-shadow: 0 20px 56px rgba(21, 44, 27, .15);
}

.discover-resource-detail .post-header::after {
  content: "WORKING REFERENCE";
  position: absolute;
  top: 22px;
  right: 24px;
  color: rgba(239, 248, 239, .42);
  font: 800 8px/1 var(--font-mono);
  letter-spacing: .14em;
}

.discover-resource-detail .post-header .meta {
  color: var(--discover-lime);
}

.discover-resource-detail .post-header h1 {
  max-width: 18ch;
  margin: 12px 0 20px;
  color: #f2f8f1;
  font-size: clamp(36px, 5vw, 62px);
  line-height: .96;
  letter-spacing: -.055em;
}

.discover-resource-detail .post-header .tag {
  color: rgba(239, 248, 239, .76);
  border-color: rgba(239, 248, 239, .3);
  background: transparent;
}

.discover-resource-detail .post-header .tag.fill {
  color: var(--discover-dark);
  border-color: var(--discover-lime);
  background: var(--discover-lime);
}

.discover-resource-detail .post-body {
  max-width: 850px;
  margin-inline: auto;
}

.discover-resource-detail .post-body > blockquote:first-child,
.discover-resource-detail .post-body > .bm-tldr:first-child {
  margin: 0 0 34px;
  padding: 20px 22px;
  border: 1px solid color-mix(in srgb, var(--ink) 22%, transparent);
  border-left: 4px solid var(--discover-green);
  border-radius: 0 12px 12px 0;
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-2) 48%, var(--paper));
  font-size: 15px;
  line-height: 1.65;
}

.discover-resource-detail .post-body h2 {
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px dashed color-mix(in srgb, var(--ink) 28%, transparent);
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.08;
}

.discover-resource-detail .post-body h3 {
  margin-top: 30px;
  font-size: clamp(19px, 2vw, 24px);
}

.discover-resource-detail .post-body pre {
  border: 1px solid rgba(183, 243, 75, .14);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(21, 44, 27, .09);
}

.discover-resource-detail .post-body table {
  border: 1px solid color-mix(in srgb, var(--ink) 18%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--paper) 92%, white);
}

.discover-resource-detail .post-body .gotcha,
.discover-resource-detail .post-body .bm-note,
.discover-resource-detail .post-body .bm-warn,
.discover-resource-detail .post-body .bm-fix {
  border-radius: 10px;
}

@media (max-width: 1080px) {
  .discover-tree-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .discover-collection .series-index .post-grid,
  .discover-bits-page .series-index .post-grid,
  .discover-book-hub .series-index .post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .discover-root .discover-hero {
    grid-template-columns: 1fr;
    min-height: 0;
    margin-bottom: 38px;
    padding: 30px 22px;
    border-radius: 20px;
  }

  .discover-root .discover-hero h1 {
    font-size: clamp(38px, 11vw, 52px);
  }

  .discover-hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .discover-tree-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .discover-tree-grid,
  .discover-collection .series-index .post-grid,
  .discover-bits-page .series-index .post-grid,
  .discover-book-hub .series-index .post-grid {
    grid-template-columns: 1fr;
  }

  .discover-tree-card {
    min-height: 270px;
    padding: 20px;
  }

  .discover-collection .page > section:first-of-type,
  .discover-bits-page .page > section:first-of-type {
    padding: 24px 20px;
    border-radius: 16px;
  }

  .discover-collection .page > section:first-of-type h1,
  .discover-bits-page .page > section:first-of-type h1 {
    font-size: clamp(34px, 10vw, 46px);
  }

  .discover-collection .series-index .post-card,
  .discover-bits-page .series-index .post-card,
  .discover-book-hub .series-index .post-card {
    min-height: 245px;
    padding: 20px 18px;
  }

  .discover-resource-detail .post-header {
    margin-inline: -2px;
    padding: 30px 20px 24px;
    border-radius: 18px;
  }

  .discover-resource-detail .post-header::after {
    display: none;
  }

  .discover-resource-detail .post-header h1 {
    font-size: clamp(34px, 10.5vw, 48px);
  }

  .discover-resource-detail .post-body h2 {
    margin-top: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .discover-tree-card,
  .discover-tree-action b {
    transition: none;
  }
}