/* EARTUNE Sound Knowledge Center
 * Figma-aligned implementation built on the production V4 page shell.
 */

body.sound-knowledge-page,
body.knowledge-article-page {
  --knowledge-ink: #080a09;
  --knowledge-paper: #f0efe8;
  --knowledge-lime: #cfff4a;
  --knowledge-mint: #70f0bf;
  --knowledge-violet: #7358df;
  --knowledge-white: #f7f7f2;
  --knowledge-paper-line: rgba(8, 10, 9, 0.18);
  --knowledge-dark-line: rgba(247, 247, 242, 0.16);
}

body.sound-knowledge-page {
  background: var(--knowledge-ink);
}

body.knowledge-article-page {
  background: var(--knowledge-ink);
}

body.sound-knowledge-page .page-shell::before {
  background:
    radial-gradient(circle at 13% 8%, rgba(112, 240, 191, 0.1), transparent 27%),
    radial-gradient(circle at 88% 25%, rgba(115, 88, 223, 0.12), transparent 30%),
    repeating-linear-gradient(0deg, transparent 0 46px, rgba(255, 255, 255, 0.018) 46px 47px);
}

.knowledge-wrap {
  width: min(1440px, calc(100% - 86px));
  margin-inline: auto;
}

.knowledge-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--knowledge-mint);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.3;
  text-transform: uppercase;
}

.knowledge-eyebrow::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 18px rgba(112, 240, 191, 0.45);
  content: "";
}

.knowledge-display {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Noto Sans SC",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(54px, 5.8vw, 84px);
  font-weight: 560;
  letter-spacing: -0.075em;
  line-height: 1;
}

.knowledge-hero {
  position: relative;
  min-height: 670px;
  overflow: hidden;
  padding: 130px 0 115px;
  color: var(--knowledge-white);
}

.knowledge-hero::after {
  position: absolute;
  right: -170px;
  bottom: -370px;
  width: 740px;
  height: 740px;
  border: 1px solid rgba(112, 240, 191, 0.15);
  border-radius: 50%;
  box-shadow:
    0 0 0 92px rgba(112, 240, 191, 0.018),
    0 0 0 184px rgba(115, 88, 223, 0.018);
  content: "";
  pointer-events: none;
}

.knowledge-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(360px, 430px);
  gap: clamp(56px, 6vw, 86px);
  align-items: end;
  justify-content: space-between;
}

.knowledge-hero h1 {
  max-width: 970px;
  margin: 28px 0 30px;
  font-size: clamp(52px, 5vw, 72px);
  font-weight: 560;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.knowledge-hero h1 em {
  color: inherit;
  font-style: normal;
}

.knowledge-mobile-break {
  display: none;
}

.knowledge-hero-intro {
  max-width: 760px;
  margin: 0;
  color: rgba(247, 247, 242, 0.68);
  font-size: 17px;
  line-height: 1.8;
}

.knowledge-recommendation {
  position: relative;
  display: grid;
  min-height: 330px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--knowledge-violet);
  border-radius: 34px;
  background:
    radial-gradient(circle at 84% 18%, rgba(255, 255, 255, 0.17), transparent 31%),
    var(--knowledge-violet);
}

.knowledge-recommendation::after {
  position: absolute;
  right: -35px;
  bottom: -74px;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(207, 255, 74, 0.22);
  border-radius: 50%;
  content: "";
}

.knowledge-recommendation-label {
  color: var(--knowledge-lime);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.knowledge-recommendation h2 {
  align-self: end;
  max-width: 340px;
  margin: 48px 0 15px;
  font-size: clamp(25px, 2vw, 32px);
  font-weight: 560;
  letter-spacing: -0.045em;
  line-height: 1.22;
}

.knowledge-recommendation p {
  max-width: 340px;
  margin: 0 0 28px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  line-height: 1.65;
}

.knowledge-inline-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  color: var(--knowledge-mint);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.knowledge-inline-link:hover,
.knowledge-inline-link:focus-visible {
  color: var(--knowledge-lime);
}

.knowledge-search-block {
  margin-top: 48px;
}

.knowledge-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  max-width: 760px;
  min-height: 64px;
  padding: 7px 7px 7px 23px;
  border: 1px solid rgba(247, 247, 242, 0.2);
  border-radius: 999px;
  background: rgba(247, 247, 242, 0.055);
  box-shadow: 0 24px 58px rgba(0, 0, 0, 0.2);
}

.knowledge-search svg {
  width: 21px;
  height: 21px;
  color: var(--knowledge-mint);
}

.knowledge-search input {
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--knowledge-white);
  background: transparent;
  font: inherit;
  font-size: 15px;
}

.knowledge-search input::placeholder {
  color: rgba(247, 247, 242, 0.7);
}

.knowledge-search:focus-within {
  border-color: var(--knowledge-mint);
  box-shadow: 0 0 0 4px rgba(112, 240, 191, 0.13);
}

.knowledge-search button {
  min-height: 50px;
  padding: 0 24px;
  border: 0;
  border-radius: 999px;
  color: var(--knowledge-ink);
  background: var(--knowledge-lime);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.knowledge-quick-search {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  margin-top: 16px;
  color: rgba(247, 247, 242, 0.7);
  font-size: 12px;
}

.knowledge-quick-search button {
  min-height: 32px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid rgba(247, 247, 242, 0.28);
  color: rgba(247, 247, 242, 0.68);
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.knowledge-quick-search button:hover,
.knowledge-quick-search button:focus-visible {
  color: var(--knowledge-lime);
  border-bottom-color: var(--knowledge-lime);
}

.knowledge-explorer {
  padding: 144px 0;
  color: var(--knowledge-ink);
  background: var(--knowledge-paper);
}

.knowledge-section-head {
  display: flex;
  gap: 40px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 42px;
}

.knowledge-section-head .knowledge-eyebrow {
  margin-bottom: 22px;
  color: var(--knowledge-violet);
}

.knowledge-section-head-meta {
  flex: 0 0 auto;
  margin: 0 0 6px;
  color: rgba(8, 10, 9, 0.56);
  font-size: 13px;
}

.knowledge-section-head-meta strong {
  color: var(--knowledge-ink);
  font-size: 18px;
}

.knowledge-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.knowledge-filter {
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid rgba(8, 10, 9, 0.24);
  border-radius: 999px;
  color: rgba(8, 10, 9, 0.64);
  background: transparent;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition:
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.knowledge-filter:hover,
.knowledge-filter:focus-visible {
  color: var(--knowledge-ink);
  border-color: var(--knowledge-ink);
  transform: translateY(-1px);
}

.knowledge-filter[aria-pressed="true"] {
  color: var(--knowledge-white);
  border-color: var(--knowledge-ink);
  background: var(--knowledge-ink);
}

.knowledge-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.knowledge-question-card {
  min-width: 0;
}

.knowledge-question-card[hidden] {
  display: none;
}

.knowledge-question-link {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  min-height: 318px;
  padding: 43px;
  overflow: hidden;
  border: 1px solid rgba(8, 10, 9, 0.12);
  border-radius: 34px;
  color: var(--knowledge-ink);
  background: rgba(247, 247, 242, 0.88);
  text-decoration: none;
  transition:
    border-color 200ms ease,
    box-shadow 200ms ease,
    transform 200ms ease;
}

.knowledge-question-link:hover,
.knowledge-question-link:focus-visible {
  border-color: rgba(8, 10, 9, 0.42);
  box-shadow: 0 22px 54px rgba(8, 10, 9, 0.08);
  transform: translateY(-4px);
}

.knowledge-question-card.is-featured .knowledge-question-link {
  color: #fff;
  border-color: var(--knowledge-violet);
  background:
    radial-gradient(circle at 84% 20%, rgba(255, 255, 255, 0.17), transparent 31%),
    var(--knowledge-violet);
}

.knowledge-question-card.is-boundary .knowledge-question-link {
  border: 2px solid var(--knowledge-violet);
  background: transparent;
}

.knowledge-card-number {
  display: block;
  margin-bottom: 54px;
  color: rgba(8, 10, 9, 0.68);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.is-featured .knowledge-card-number {
  color: rgba(255, 255, 255, 0.92);
}

.knowledge-card-tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  margin-bottom: 16px;
  padding: 0 11px;
  border: 1px solid rgba(8, 10, 9, 0.18);
  border-radius: 999px;
  color: rgba(8, 10, 9, 0.62);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.is-featured .knowledge-card-tag {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.36);
}

.knowledge-question-link h3 {
  max-width: 510px;
  margin: 0 0 18px;
  font-size: clamp(26px, 2.25vw, 32px);
  font-weight: 590;
  letter-spacing: -0.045em;
  line-height: 1.16;
}

.knowledge-question-link p {
  max-width: 500px;
  margin: 0;
  color: rgba(8, 10, 9, 0.6);
  font-size: 14px;
  line-height: 1.75;
}

.is-featured .knowledge-question-link p {
  color: rgba(255, 255, 255, 0.94);
}

.knowledge-card-action {
  display: grid;
  place-items: center;
  align-self: start;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(8, 10, 9, 0.22);
  border-radius: 50%;
  font-size: 25px;
  font-weight: 300;
  line-height: 1;
}

.is-featured .knowledge-card-action {
  border-color: rgba(255, 255, 255, 0.38);
}

.knowledge-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 70px 24px;
  border: 1px dashed rgba(8, 10, 9, 0.25);
  border-radius: 34px;
  color: rgba(8, 10, 9, 0.56);
  text-align: center;
}

.knowledge-featured-answer {
  padding: 144px 0;
  color: var(--knowledge-ink);
  background: var(--knowledge-white);
}

.knowledge-answer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: start;
}

.knowledge-answer-main .knowledge-eyebrow {
  color: var(--knowledge-violet);
}

.knowledge-answer-main h2 {
  max-width: 880px;
  margin: 28px 0 36px;
  font-size: clamp(42px, 4vw, 64px);
  font-weight: 580;
  letter-spacing: -0.06em;
  line-height: 1.04;
}

.knowledge-answer-lead {
  max-width: 820px;
  margin: 0 0 54px;
  padding-bottom: 38px;
  border-bottom: 1px solid var(--knowledge-paper-line);
  font-size: clamp(19px, 1.7vw, 24px);
  font-weight: 560;
  letter-spacing: -0.025em;
  line-height: 1.55;
}

.knowledge-answer-copy {
  max-width: 780px;
}

.knowledge-answer-copy h3 {
  margin: 38px 0 12px;
  color: var(--knowledge-violet);
  font-size: 15px;
  font-weight: 750;
  letter-spacing: 0.06em;
}

.knowledge-answer-copy p {
  margin: 0;
  color: rgba(8, 10, 9, 0.68);
  font-size: 16px;
  line-height: 1.9;
}

.knowledge-answer-more {
  margin-top: 44px;
}

.knowledge-answer-more .btn {
  min-height: 48px;
  padding-inline: 22px;
}

.knowledge-answer-side {
  display: grid;
  gap: 14px;
}

.knowledge-info-card {
  padding: 28px;
  border: 1px solid rgba(8, 10, 9, 0.14);
  border-radius: 24px;
  background: var(--knowledge-paper);
}

.knowledge-info-card.is-violet {
  color: #fff;
  border-color: var(--knowledge-violet);
  background: var(--knowledge-violet);
}

.knowledge-info-card h3 {
  margin: 0 0 12px;
  color: var(--knowledge-ink);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.knowledge-info-card.is-violet h3 {
  color: #fff;
}

.knowledge-info-card p,
.knowledge-info-card li {
  color: rgba(8, 10, 9, 0.62);
  font-size: 13px;
  line-height: 1.75;
}

.knowledge-info-card.is-violet p,
.knowledge-info-card.is-violet li {
  color: rgba(255, 255, 255, 0.94);
}

.knowledge-info-card p {
  margin: 0;
}

.knowledge-info-card ul {
  margin: 0;
  padding-left: 18px;
}

.knowledge-principles {
  padding: 144px 0;
  color: var(--knowledge-white);
  background: var(--knowledge-ink);
}

.knowledge-principles .knowledge-section-head {
  margin-bottom: 58px;
}

.knowledge-principles .knowledge-section-head .knowledge-eyebrow {
  color: var(--knowledge-mint);
}

.knowledge-principles .knowledge-display {
  max-width: 950px;
}

.knowledge-principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.knowledge-principle-card {
  min-height: 280px;
  padding: 30px;
  border: 1px solid var(--knowledge-dark-line);
  border-radius: 28px;
  background: #111412;
}

.knowledge-principle-card:nth-child(2) {
  border-color: rgba(112, 240, 191, 0.34);
}

.knowledge-principle-card:nth-child(3) {
  background: rgba(115, 88, 223, 0.2);
  border-color: rgba(115, 88, 223, 0.6);
}

.knowledge-principle-number {
  color: var(--knowledge-mint);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.knowledge-principle-card h3 {
  margin: 86px 0 14px;
  font-size: 25px;
  font-weight: 580;
  letter-spacing: -0.035em;
}

.knowledge-principle-card p {
  margin: 0;
  color: rgba(247, 247, 242, 0.56);
  font-size: 13px;
  line-height: 1.75;
}

/* Standalone answer pages */
.knowledge-article-page {
  color: var(--knowledge-ink);
  background: var(--knowledge-paper);
}

.knowledge-article-hero {
  padding: 108px 0 82px;
  color: var(--knowledge-white);
  background: var(--knowledge-ink);
}

.knowledge-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 52px;
  padding: 0;
  color: rgba(247, 247, 242, 0.48);
  font-size: 12px;
  list-style: none;
}

.knowledge-breadcrumbs a {
  color: inherit;
  text-decoration: none;
}

.knowledge-breadcrumbs a:hover,
.knowledge-breadcrumbs a:focus-visible {
  color: var(--knowledge-lime);
}

.knowledge-breadcrumbs li + li::before {
  margin-right: 8px;
  content: "/";
}

.knowledge-article-hero h1 {
  max-width: 1040px;
  margin: 25px 0 28px;
  font-size: clamp(46px, 5vw, 72px);
  font-weight: 580;
  letter-spacing: -0.065em;
  line-height: 1.02;
}

.knowledge-article-summary {
  max-width: 820px;
  margin: 0;
  color: rgba(247, 247, 242, 0.7);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.65;
}

.knowledge-article {
  padding: 110px 0 130px;
  background: var(--knowledge-paper);
}

.knowledge-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.45fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: start;
}

.knowledge-article-content {
  min-width: 0;
}

.knowledge-direct-answer {
  margin-bottom: 62px;
  padding: 34px;
  border-left: 5px solid var(--knowledge-lime);
  border-radius: 0 24px 24px 0;
  background: var(--knowledge-ink);
  color: var(--knowledge-white);
}

.knowledge-direct-answer strong {
  display: block;
  margin-bottom: 12px;
  color: var(--knowledge-lime);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.knowledge-direct-answer p {
  margin: 0;
  font-size: clamp(18px, 1.8vw, 24px);
  font-weight: 560;
  letter-spacing: -0.025em;
  line-height: 1.55;
}

.knowledge-prose h2 {
  margin: 62px 0 18px;
  color: var(--knowledge-ink);
  font-size: clamp(30px, 3vw, 42px);
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 1.12;
}

.knowledge-prose h3 {
  margin: 38px 0 12px;
  color: var(--knowledge-violet);
  font-size: 18px;
}

.knowledge-prose p,
.knowledge-prose li {
  color: rgba(8, 10, 9, 0.7);
  font-size: 16px;
  line-height: 1.9;
}

.knowledge-prose p {
  margin: 0 0 22px;
}

.knowledge-prose ul,
.knowledge-prose ol {
  padding-left: 24px;
}

.knowledge-prose a {
  color: #4d34b4;
  text-underline-offset: 4px;
}

.knowledge-safety-note {
  margin: 56px 0;
  padding: 28px;
  border: 1px solid rgba(115, 88, 223, 0.42);
  border-radius: 24px;
  background: rgba(115, 88, 223, 0.07);
}

.knowledge-safety-note strong {
  display: block;
  margin-bottom: 10px;
  color: #4d34b4;
  font-size: 13px;
}

.knowledge-safety-note p {
  margin: 0;
}

.knowledge-reference-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.knowledge-reference-list li {
  padding: 16px 18px;
  border: 1px solid rgba(8, 10, 9, 0.13);
  border-radius: 16px;
  background: rgba(247, 247, 242, 0.7);
}

.knowledge-article-aside {
  position: sticky;
  top: 84px;
  display: grid;
  gap: 14px;
}

.knowledge-related-links {
  display: grid;
  gap: 9px;
}

.knowledge-related-links a {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  min-height: 50px;
  padding: 0 15px;
  border: 1px solid rgba(8, 10, 9, 0.14);
  border-radius: 999px;
  color: var(--knowledge-ink);
  background: var(--knowledge-white);
  font-size: 12px;
  text-decoration: none;
}

.knowledge-related-links a:hover,
.knowledge-related-links a:focus-visible {
  border-color: var(--knowledge-violet);
}

.knowledge-back-link {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  margin-top: 48px;
  color: var(--knowledge-ink);
  font-weight: 700;
  text-decoration: none;
}

.knowledge-back-link:hover,
.knowledge-back-link:focus-visible {
  color: #4d34b4;
}

@media (max-width: 1180px) {
  .knowledge-hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 48px;
  }

  .knowledge-question-link {
    min-height: 290px;
    padding: 34px;
  }

  .knowledge-card-number {
    margin-bottom: 42px;
  }
}

@media (max-width: 1024px) {
  .knowledge-hero {
    min-height: auto;
    padding-top: 104px;
  }

  .knowledge-hero-grid,
  .knowledge-answer-layout,
  .knowledge-article-layout {
    grid-template-columns: 1fr;
  }

  .knowledge-recommendation {
    max-width: 680px;
    min-height: 280px;
  }

  .knowledge-answer-side {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .knowledge-article-aside {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  .knowledge-wrap {
    width: calc(100% - 28px);
  }

  .knowledge-hero {
    padding: 70px 0 64px;
  }

  .knowledge-hero::after {
    display: none;
  }

  .knowledge-hero-grid {
    gap: 42px;
  }

  .knowledge-hero h1 {
    margin: 24px 0;
    font-size: 42px;
    line-height: 0.98;
  }

  .knowledge-hero-intro {
    font-size: 15px;
  }

  .knowledge-search-block {
    margin-top: 34px;
  }

  .knowledge-search {
    position: relative;
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

  .knowledge-search:focus-within {
    border-color: transparent;
    box-shadow: none;
  }

  .knowledge-search svg {
    position: absolute;
    z-index: 1;
    top: 14px;
    left: 18px;
  }

  .knowledge-search input {
    min-height: 50px;
    padding: 0 18px 0 52px;
    border: 1px solid rgba(247, 247, 242, 0.24);
    border-radius: 999px;
    background: rgba(247, 247, 242, 0.055);
  }

  .knowledge-search input:focus {
    border-color: var(--knowledge-mint);
    box-shadow: 0 0 0 4px rgba(112, 240, 191, 0.13);
    outline: 0;
  }

  .knowledge-search button {
    width: 100%;
    min-height: 50px;
  }

  .knowledge-recommendation {
    min-height: 315px;
    padding: 28px;
  }

  .knowledge-explorer,
  .knowledge-featured-answer,
  .knowledge-principles {
    padding: 76px 0;
  }

  .knowledge-section-head {
    display: block;
    margin-bottom: 30px;
  }

  .knowledge-section-head .knowledge-eyebrow {
    margin-bottom: 16px;
  }

  .knowledge-display {
    font-size: 45px;
    line-height: 1;
  }

  .knowledge-section-head-meta {
    margin-top: 20px;
  }

  .knowledge-filters {
    flex-wrap: wrap;
    margin: 0 0 28px;
    padding: 0;
    overflow: visible;
  }

  .knowledge-filter {
    min-height: 44px;
  }

  .knowledge-card-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .knowledge-question-link {
    min-height: 310px;
    padding: 30px;
  }

  .knowledge-question-link h3 {
    font-size: 27px;
  }

  .knowledge-card-number {
    margin-bottom: 56px;
  }

  .knowledge-answer-main h2 {
    font-size: 43px;
  }

  .knowledge-answer-lead {
    margin-bottom: 40px;
    padding-bottom: 30px;
    font-size: 19px;
  }

  .knowledge-answer-side,
  .knowledge-article-aside,
  .knowledge-principle-grid {
    grid-template-columns: 1fr;
  }

  .knowledge-principle-card {
    min-height: 245px;
  }

  .knowledge-principle-card h3 {
    margin-top: 64px;
  }

  .knowledge-article-hero {
    padding: 70px 0 64px;
  }

  .knowledge-breadcrumbs {
    margin-bottom: 36px;
  }

  .knowledge-article-hero h1 {
    font-size: 46px;
  }

  .knowledge-article {
    padding: 72px 0 88px;
  }

  .knowledge-direct-answer {
    margin-bottom: 48px;
    padding: 26px 24px;
  }

  .knowledge-prose h2 {
    margin-top: 50px;
  }
}

@media (max-width: 420px) {
  .knowledge-hero h1 {
    font-size: 42px;
  }

  .knowledge-mobile-break {
    display: block;
  }

  .knowledge-display,
  .knowledge-article-hero h1 {
    font-size: 42px;
  }

  .knowledge-question-link {
    grid-template-columns: 1fr;
    gap: 22px;
    min-height: 0;
  }

  .knowledge-card-action {
    position: absolute;
    top: 26px;
    right: 26px;
  }

  .knowledge-card-number {
    margin-bottom: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .knowledge-question-link,
  .knowledge-filter {
    transition: none;
  }

  .knowledge-question-link:hover,
  .knowledge-question-link:focus-visible,
  .knowledge-filter:hover,
  .knowledge-filter:focus-visible {
    transform: none;
  }
}