/* Shared topic subject and question-bank presentation. */
@font-face {
  font-display: block;
  font-family: "YPI Phosphor";
  font-style: normal;
  font-weight: 400;
  src: url("../fonts/Phosphor.woff2") format("woff2");
}

:root {
  --topic-navy: #061a33;
  --topic-navy-2: #0b2850;
  --topic-ink: #0d1d38;
  --topic-copy: #425875;
  --topic-muted: #607189;
  --topic-blue: #126af6;
  --topic-blue-dark: #0758d9;
  --topic-blue-soft: #edf4ff;
  --topic-line: #d9e4f2;
  --topic-line-soft: #e8eef6;
  --topic-wash: #f7faff;
  --topic-surface: #fff;
  --topic-shell: 1384px;
}

body:has(.topic-detail-page) {
  background: #fff;
  color: var(--topic-copy);
  font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body:has(.topic-detail-page) .ph {
  font-family: "YPI Phosphor" !important;
}

body:has(.topic-detail-page) .nav-assessments,
body:has(.topic-detail-page) .nav-newsletter {
  display: none;
}

body:has(.topic-detail-page) main.wrap {
  margin-inline: auto;
  padding: 1.15rem 0 3.5rem;
  width: min(calc(100% - 96px), var(--topic-shell));
}

.topic-detail-page,
.topic-detail-page * {
  box-sizing: border-box;
}

.topic-detail-page a {
  text-underline-offset: 0.16em;
}

.topic-sr-only {
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.topic-detail-breadcrumb {
  align-items: center;
  color: var(--topic-copy);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.82rem;
  font-weight: 600;
  gap: 0.5rem;
  margin: 0 0 0.8rem 0.25rem;
}

.topic-detail-breadcrumb a {
  color: var(--topic-blue-dark);
  font-weight: 700;
  text-decoration: none;
}

.topic-detail-breadcrumb i {
  color: #91a1b6;
  font-size: 0.7rem;
}

.topic-detail-hero {
  align-items: center;
  background: var(--topic-surface);
  border: 1px solid var(--topic-line);
  border-radius: 7px;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) minmax(410px, 0.53fr);
  padding: 1.8rem 2.25rem;
}

.topic-detail-identity {
  align-items: flex-start;
  display: flex;
  gap: 1.5rem;
  min-width: 0;
}

.topic-detail-icon {
  align-items: center;
  background: var(--topic-blue-soft);
  border-radius: 13px;
  color: var(--topic-blue);
  display: flex;
  flex: 0 0 82px;
  height: 82px;
  justify-content: center;
  margin-top: 0.2rem;
  width: 82px;
}

.topic-detail-icon i {
  font-size: 2.8rem;
}

.topic-detail-copy {
  min-height: 0;
  min-width: 0;
}

.topic-detail-copy h1 {
  color: var(--topic-ink);
  font-family: "Lora", Georgia, serif;
  font-size: clamp(2rem, 3vw, 2.85rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.08;
  margin: 0;
  text-wrap: balance;
}

.topic-detail-copy > p {
  color: var(--topic-copy);
  font-size: 1rem;
  line-height: 1.55;
  margin: 0.55rem 0 0;
  max-width: 66ch;
}

.topic-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.topic-button {
  align-items: center;
  border-radius: 6px;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 750;
  gap: 0.45rem;
  justify-content: center;
  min-height: 43px;
  padding: 0.68rem 1.05rem;
  text-decoration: none;
}

.topic-button-secondary {
  background: #fff;
  border: 1px solid #b9c8da;
  color: var(--topic-ink) !important;
}

.topic-button-secondary:hover {
  border-color: var(--topic-blue);
  color: var(--topic-blue-dark) !important;
}

.topic-button-primary {
  background: var(--topic-blue);
  border: 1px solid var(--topic-blue);
  box-shadow: 0 6px 14px rgba(18, 106, 246, 0.16);
  color: #fff !important;
}

.topic-button-primary:hover {
  background: var(--topic-blue-dark);
  border-color: var(--topic-blue-dark);
}

.topic-detail-page .topic-detail-stats {
  align-items: stretch;
  border: 1px solid var(--topic-line);
  border-radius: 7px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 1.35rem 0.75rem;
}

.topic-detail-page .topic-detail-stats > div {
  min-width: 0;
  padding: 0 1rem;
}

.topic-detail-page .topic-detail-stats > div + div {
  border-left: 1px solid var(--topic-line);
}

.topic-detail-page .topic-detail-stats dt {
  color: var(--topic-ink);
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  line-height: 1.25;
  white-space: nowrap;
}

.topic-detail-page .topic-detail-stats dd {
  color: var(--topic-muted);
  font-size: 0.72rem;
  font-weight: 550;
  line-height: 1.35;
  margin: 0.35rem 0 0;
}

.topic-directory-section,
.topic-question-section {
  margin-top: 1.55rem;
}

.topic-section-heading > span {
  color: var(--topic-blue-dark);
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.topic-section-heading h2 {
  color: var(--topic-ink);
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin: 0;
}

.topic-section-heading p {
  color: var(--topic-copy);
  font-size: 0.9rem;
  margin: 0.45rem 0 0;
}

.topic-directory-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1rem;
}

.topic-directory-card {
  align-items: center;
  background: #fff;
  border: 1px solid var(--topic-line);
  border-radius: 8px;
  color: var(--topic-ink) !important;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 94px;
  padding: 1rem;
  text-decoration: none;
}

.topic-directory-card:hover {
  border-color: #9ab9e9;
  box-shadow: 0 8px 24px rgba(6, 26, 51, 0.07);
  transform: translateY(-1px);
}

.topic-directory-card-icon {
  align-items: center;
  background: var(--topic-blue-soft);
  border-radius: 50%;
  color: var(--topic-blue);
  display: flex;
  font-size: 1.45rem;
  height: 48px;
  justify-content: center;
  width: 48px;
}

.topic-directory-card strong,
.topic-directory-card small {
  display: block;
}

.topic-directory-card strong {
  font-size: 0.95rem;
}

.topic-directory-card small {
  color: var(--topic-muted);
  font-size: 0.72rem;
  line-height: 1.45;
  margin-top: 0.2rem;
}

.topic-directory-card > i {
  color: var(--topic-blue);
}

.topic-question-heading {
  margin: 0 0 1rem 2.25rem;
}

.topic-detail-page .topic-question-layout {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) 294px;
  padding-inline: 2.25rem;
}

.topic-question-main {
  min-width: 0;
}

.topic-detail-page .topic-question-toolbar {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 0;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  margin-bottom: 0.85rem;
  padding: 0;
}

.topic-detail-page label.topic-question-search {
  align-items: center;
  background: #fff;
  border: 1px solid var(--topic-line);
  border-radius: 6px;
  display: flex;
  gap: 0.55rem;
  min-height: 42px;
  padding: 0 0.8rem;
}

.topic-question-search:focus-within {
  border-color: var(--topic-blue);
  box-shadow: 0 0 0 3px rgba(18, 106, 246, 0.1);
}

.topic-question-search i {
  color: var(--topic-copy);
  font-size: 1.1rem;
}

.topic-question-search input {
  background: transparent;
  border: 0;
  color: var(--topic-ink);
  flex: 1;
  font: inherit;
  font-size: 0.78rem;
  min-width: 0;
  outline: 0;
}

.topic-question-search input::placeholder {
  color: #75869d;
}

.topic-question-filters {
  display: flex;
  gap: 0.45rem;
}

.topic-question-filters button {
  background: #fff;
  border: 1px solid var(--topic-line);
  border-radius: 6px;
  color: var(--topic-copy);
  cursor: pointer;
  font: inherit;
  font-size: 0.73rem;
  font-weight: 700;
  min-height: 42px;
  padding: 0.62rem 0.82rem;
  white-space: nowrap;
}

.topic-question-filters button:hover {
  border-color: #a9bfdc;
  color: var(--topic-blue-dark);
}

.topic-question-filters button.is-active {
  border-color: var(--topic-blue);
  color: var(--topic-blue-dark);
}

.topic-detail-page .topic-question-toolbar > p {
  color: var(--topic-copy);
  font-size: 0.73rem;
  margin: 0;
  min-width: 130px;
  text-align: right;
  white-space: nowrap;
}

.topic-question-list {
  background: #fff;
  border: 1px solid var(--topic-line);
  border-radius: 7px;
  overflow: hidden;
}

.topic-question-group + .topic-question-group {
  border-top: 1px solid var(--topic-line);
}

.topic-question-group[hidden],
.topic-question-row[hidden] {
  display: none;
}

.topic-question-group-heading {
  align-items: center;
  background: var(--topic-wash);
  color: var(--topic-blue-dark);
  display: flex;
  font-size: 0.68rem;
  font-weight: 800;
  justify-content: space-between;
  letter-spacing: 0.05em;
  padding: 0.62rem 1.4rem;
  text-transform: uppercase;
}

.topic-question-group-heading small {
  color: var(--topic-muted);
  font-size: 0.65rem;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
}

.topic-question-row + .topic-question-row {
  border-top: 1px solid var(--topic-line-soft);
}

.topic-question-row summary {
  align-items: center;
  cursor: pointer;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 43px minmax(0, 1fr) auto;
  list-style: none;
  min-height: 68px;
  padding: 0.75rem 1.4rem;
}

.topic-question-row summary::-webkit-details-marker {
  display: none;
}

.topic-question-row summary:hover {
  background: #fbfdff;
}

.topic-question-row[open] summary {
  background: #fbfdff;
  border-bottom: 1px solid var(--topic-line-soft);
}

.topic-question-row-icon {
  align-items: center;
  background: var(--topic-blue-soft);
  border-radius: 50%;
  color: var(--topic-blue);
  display: flex;
  font-size: 1.15rem;
  height: 40px;
  justify-content: center;
  width: 40px;
}

.topic-question-row.is-locked .topic-question-row-icon {
  background: #f0f2f5;
  color: #506078;
}

.topic-question-row-copy {
  min-width: 0;
}

.topic-question-row-copy strong,
.topic-question-row-copy small {
  display: block;
}

.topic-question-row-copy strong {
  color: var(--topic-ink);
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1.4;
}

.topic-question-row-copy strong p {
  margin: 0;
}

.topic-question-row-copy small {
  color: var(--topic-muted);
  font-size: 0.68rem;
  font-weight: 550;
  margin-top: 0.18rem;
}

.topic-question-row-arrow {
  color: var(--topic-blue);
  font-size: 1rem;
  transition: transform 150ms ease;
}

.topic-question-row[open] .topic-question-row-arrow {
  transform: rotate(90deg);
}

.topic-answer,
.topic-locked-answer {
  color: var(--topic-copy);
  font-size: 0.86rem;
  line-height: 1.72;
  padding: 1.2rem 1.4rem 1.3rem 5.15rem;
}

.topic-answer > :first-child,
.topic-locked-answer > :first-child {
  margin-top: 0;
}

.topic-answer > :last-child,
.topic-locked-answer > :last-child {
  margin-bottom: 0;
}

.topic-answer img {
  border: 1px solid var(--topic-line);
  border-radius: 7px;
  display: block;
  height: auto;
  margin-block: 1rem;
  max-width: 100%;
}

.topic-locked-answer {
  align-items: flex-start;
  background: var(--topic-wash);
  display: flex;
  gap: 0.75rem;
}

.topic-locked-answer > i {
  color: var(--topic-blue);
  font-size: 1.2rem;
  margin-top: 0.15rem;
}

.topic-locked-answer strong {
  color: var(--topic-ink);
}

.topic-locked-answer p {
  margin: 0.25rem 0 0.45rem;
}

.topic-locked-answer a {
  color: var(--topic-blue-dark);
  font-weight: 750;
}

.topic-question-empty {
  align-items: center;
  background: var(--topic-wash);
  border: 1px solid var(--topic-line);
  border-radius: 7px;
  color: var(--topic-muted);
  display: none;
  flex-direction: column;
  margin-top: 0.8rem;
  padding: 2rem;
  text-align: center;
}

.topic-question-empty.is-visible,
.topic-question-empty.is-static {
  display: flex;
}

.topic-question-empty i {
  color: var(--topic-blue);
  font-size: 1.6rem;
  margin-bottom: 0.4rem;
}

.topic-question-empty strong,
.topic-question-empty span {
  display: block;
}

.topic-question-empty strong {
  color: var(--topic-ink);
}

.topic-question-empty span {
  font-size: 0.78rem;
  margin-top: 0.2rem;
}

.topic-detail-page .topic-question-sidebar {
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 94px;
}

@media (min-width: 821px) {
  .topic-detail-page .topic-question-sidebar {
    margin-top: -62px;
  }
}

.topic-access-card,
.topic-editorial-card {
  border-radius: 7px;
  padding: 1.35rem;
}

.topic-access-card {
  background: var(--topic-navy);
  color: #fff;
}

.topic-access-icon {
  align-items: center;
  background: var(--topic-blue);
  border-radius: 50%;
  display: flex;
  font-size: 1.2rem;
  height: 42px;
  justify-content: center;
  margin-bottom: 1rem;
  width: 42px;
}

.topic-detail-page .topic-access-card h3,
.topic-editorial-card h3 {
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0;
}

.topic-detail-page .topic-access-card h3 {
  color: #fff;
}

.topic-access-card p,
.topic-editorial-card p {
  font-size: 0.79rem;
  line-height: 1.65;
  margin: 0.55rem 0 0;
}

.topic-access-card p {
  color: #e4edf9;
}

.topic-access-card > a {
  align-items: center;
  background: var(--topic-blue);
  border-radius: 5px;
  color: #fff !important;
  display: flex;
  font-size: 0.8rem;
  font-weight: 750;
  justify-content: center;
  margin-top: 1rem;
  min-height: 46px;
  padding: 0.7rem;
  text-decoration: none;
}

.topic-access-card > a:hover {
  background: #2c7dff;
}

.topic-editorial-card {
  background: #fff;
  border: 1px solid var(--topic-line);
  color: var(--topic-copy);
}

.topic-editorial-card h3 {
  color: var(--topic-ink);
}

.topic-editorial-card a {
  color: var(--topic-blue-dark);
  font-weight: 700;
}

.topic-editorial-card > a {
  display: inline-block;
  font-size: 0.78rem;
  margin-top: 0.85rem;
}

.topic-group-nav > a {
  border-top: 1px solid var(--topic-line-soft);
  display: block;
  padding: 0.55rem 0;
  text-decoration: none;
}

.topic-group-nav h3 + a {
  margin-top: 0.65rem;
}

body:has(.topic-detail-page) .site-footer {
  background: var(--topic-navy);
}

@media (max-width: 1180px) {
  .topic-detail-hero {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.48fr);
  }

  .topic-detail-page .topic-question-layout {
    gap: 1.25rem;
    padding-inline: 0;
  }

  .topic-question-heading {
    margin-left: 0;
  }

  .topic-detail-page .topic-question-toolbar {
    grid-template-columns: minmax(240px, 1fr) auto;
  }

  .topic-detail-page .topic-question-toolbar > p {
    grid-column: 1 / -1;
    text-align: left;
  }
}

@media (max-width: 960px) {
  body:has(.topic-detail-page) main.wrap {
    width: min(calc(100% - 48px), var(--topic-shell));
  }

  .topic-detail-hero {
    grid-template-columns: 1fr;
  }

  .topic-detail-page .topic-detail-stats {
    max-width: none;
  }

  .topic-detail-page .topic-question-layout {
    grid-template-columns: minmax(0, 1fr) 250px;
  }

  .topic-detail-page .topic-question-toolbar {
    grid-template-columns: 1fr;
  }

  .topic-question-filters {
    flex-wrap: wrap;
  }

  .topic-directory-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .topic-detail-page .topic-question-layout {
    grid-template-columns: 1fr;
  }

  .topic-detail-page .topic-question-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    position: static;
  }

  .topic-group-nav {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  body:has(.topic-detail-page) main.wrap {
    width: min(calc(100% - 32px), var(--topic-shell));
  }

  body:has(.topic-detail-page) main.wrap {
    padding-top: 0.9rem;
  }

  .topic-detail-breadcrumb {
    font-size: 0.74rem;
  }

  .topic-detail-hero {
    gap: 1.25rem;
    padding: 1.25rem;
  }

  .topic-detail-identity {
    display: block;
  }

  .topic-detail-icon {
    height: 60px;
    margin: 0 0 0.9rem;
    width: 60px;
  }

  .topic-detail-icon i {
    font-size: 2rem;
  }

  .topic-detail-copy h1 {
    font-size: 2rem;
  }

  .topic-detail-actions,
  .topic-button {
    width: 100%;
  }

  .topic-detail-page .topic-detail-stats {
    gap: 0;
    padding-inline: 0;
  }

  .topic-detail-page .topic-detail-stats > div {
    padding-inline: 0.65rem;
  }

  .topic-detail-page .topic-detail-stats dt {
    font-size: 0.92rem;
  }

  .topic-detail-page .topic-detail-stats dd {
    font-size: 0.63rem;
  }

  .topic-section-heading h2 {
    font-size: 1.55rem;
  }

  .topic-directory-grid,
  .topic-detail-page .topic-question-sidebar {
    grid-template-columns: 1fr;
  }

  .topic-detail-page .topic-question-toolbar {
    align-items: stretch;
  }

  .topic-question-filters {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .topic-question-filters button {
    padding-inline: 0.35rem;
    white-space: normal;
  }

  .topic-question-row summary {
    gap: 0.7rem;
    grid-template-columns: 38px minmax(0, 1fr) auto;
    padding: 0.75rem 0.85rem;
  }

  .topic-question-row-icon {
    height: 36px;
    width: 36px;
  }

  .topic-question-row-copy strong {
    font-size: 0.78rem;
  }

  .topic-answer,
  .topic-locked-answer {
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .topic-directory-card,
  .topic-question-row-arrow {
    transition: none;
  }
}