:root {
  --knowledge-ink: #12263a;
  --knowledge-paper: #f4f0e8;
  --knowledge-line: #d8d1c4;
  --knowledge-accent: #b77a3a;
  --knowledge-green: #315b4d;
}

.lr-knowledge-hero {
  position: relative;
  overflow: hidden;
  padding: 6.5rem 0 5rem;
  color: #fff;
  background:
    radial-gradient(circle at 88% 18%, rgba(197, 151, 91, 0.22), transparent 27rem),
    linear-gradient(124deg, #10243a 0%, #183b54 58%, #254e5c 100%);
}

.lr-knowledge-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.15;
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent 79px, rgba(255,255,255,.18) 80px);
}

.lr-knowledge-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(440px, 1.14fr);
  gap: 5rem;
  align-items: center;
}

.lr-knowledge-eyebrow {
  margin: 0 0 1.25rem;
  color: #e4c69d;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.lr-knowledge-hero__intro h1 {
  margin: 0;
  color: #fff;
  font-family: "Noto Sans KR", sans-serif;
  font-size: clamp(2.6rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.13;
  letter-spacing: -0.055em;
}

.lr-knowledge-hero__intro > p:not(.lr-knowledge-eyebrow) {
  max-width: 37rem;
  margin: 1.7rem 0 0;
  color: rgba(255,255,255,.78);
  font-size: 1.05rem;
  line-height: 1.9;
}

.lr-knowledge-coverage {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
}

.lr-knowledge-coverage span {
  padding: 0.5rem 0.8rem;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px;
  color: rgba(255,255,255,.84);
  font-size: 0.8rem;
}

.lr-knowledge-search-card {
  padding: 2.2rem;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 1.1rem;
  color: var(--knowledge-ink);
  background: rgba(255, 253, 248, 0.97);
  box-shadow: 0 34px 75px rgba(3, 17, 30, 0.34);
}

.lr-knowledge-search-card label {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--knowledge-ink);
  font-size: 1.15rem;
  font-weight: 700;
}

.lr-knowledge-search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
}

.lr-knowledge-search-row input {
  min-width: 0;
  padding: 1rem 1.05rem;
  border: 1px solid #c9c1b4;
  border-radius: 0.65rem;
  color: #172a3a;
  background: #fff;
  font: inherit;
  font-size: 1rem;
  line-height: 1.5;
}

.lr-knowledge-search-row input:focus {
  outline: 3px solid rgba(183, 122, 58, 0.23);
  border-color: var(--knowledge-accent);
}

.lr-knowledge-search-row button {
  padding: 0 1.35rem;
  border: 0;
  border-radius: 0.65rem;
  color: #fff;
  background: var(--knowledge-ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease;
}

.lr-knowledge-search-row button:hover {
  transform: translateY(-1px);
  background: #24445f;
}

.lr-knowledge-search-row button:disabled {
  opacity: .55;
  cursor: wait;
}

#knowledge-search-help {
  margin: 0.7rem 0 0;
  color: #756e64;
  font-size: 0.78rem;
}

.lr-knowledge-suggestions {
  padding-top: 1.45rem;
  margin-top: 1.45rem;
  border-top: 1px solid #e5dfd5;
}

.lr-knowledge-suggestions > p {
  margin: 0 0 0.75rem;
  color: #5e5a53;
  font-size: 0.8rem;
  font-weight: 700;
}

#knowledge-suggestion-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.48rem;
}

#knowledge-suggestion-list button {
  padding: 0.5rem 0.72rem;
  border: 1px solid #d6cec1;
  border-radius: 999px;
  color: #374151;
  background: transparent;
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}

#knowledge-suggestion-list button:hover,
#knowledge-suggestion-list button:focus-visible {
  border-color: var(--knowledge-accent);
  color: #714313;
  background: #fff8ee;
}

.lr-knowledge-status {
  min-height: 1.4rem;
  margin: 1rem 0 0;
  color: var(--knowledge-green);
  font-size: 0.82rem;
  font-weight: 600;
}

.lr-knowledge-status.is-error { color: #9a3b30; }

.lr-knowledge-results-section {
  min-height: 30rem;
  background: var(--knowledge-paper);
}

.lr-knowledge-results {
  max-width: 960px;
  margin: 0 auto;
}

.lr-knowledge-placeholder,
.lr-knowledge-empty {
  padding: 4rem 2rem;
  border: 1px solid var(--knowledge-line);
  text-align: center;
  background: rgba(255,255,255,.6);
}

.lr-knowledge-placeholder h2,
.lr-knowledge-empty h2 {
  margin: .5rem 0 1rem;
  color: var(--knowledge-ink);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.lr-knowledge-placeholder > p:last-child,
.lr-knowledge-empty > p {
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  color: #67635c;
  line-height: 1.8;
}

.lr-knowledge-answer {
  border: 1px solid var(--knowledge-line);
  background: #fffdf9;
  box-shadow: 0 18px 50px rgba(20, 34, 45, .08);
}

.lr-knowledge-answer__header {
  padding: 2.5rem 3rem;
  color: #fff;
  background: var(--knowledge-ink);
}

.lr-knowledge-answer__header h2 {
  margin: .45rem 0 .8rem;
  color: #fff;
  font-size: clamp(1.65rem, 3.2vw, 2.45rem);
  line-height: 1.35;
}

.lr-knowledge-answer__header > p:not(.lr-kicker) {
  margin: 0;
  color: rgba(255,255,255,.76);
}

.lr-knowledge-labels {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: 1.4rem;
}

.lr-knowledge-labels span {
  padding: .4rem .68rem;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  color: #f3ddbd;
  font-size: .76rem;
}

.lr-knowledge-answer__section {
  padding: 2.5rem 3rem;
  border-bottom: 1px solid #e5dfd5;
}

.lr-knowledge-answer__section > h3 {
  margin: 0 0 1.4rem;
  color: var(--knowledge-ink);
  font-size: 1.4rem;
}

.lr-knowledge-passages {
  display: grid;
  gap: 1rem;
}

.lr-knowledge-passages blockquote {
  margin: 0;
  padding: 1.35rem 1.5rem;
  border: 0;
  border-left: 3px solid var(--knowledge-accent);
  background: #f8f4ed;
}

.lr-knowledge-passage__source {
  margin: 0 0 .35rem;
  color: #8a5b28;
  font-size: .76rem;
  font-weight: 700;
}

.lr-knowledge-passages h4 {
  margin: 0 0 .65rem;
  color: var(--knowledge-ink);
  font-size: 1.05rem;
}

.lr-knowledge-passages blockquote > p:not(.lr-knowledge-passage__source) {
  margin: 0;
  color: #4f4d48;
  line-height: 1.8;
}

.lr-knowledge-passages a,
.lr-knowledge-report-list a,
.lr-knowledge-source-list a {
  display: inline-block;
  margin-top: .7rem;
  color: #28557a;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.lr-knowledge-report-list {
  display: grid;
  gap: .75rem;
}

.lr-knowledge-report-list article {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.2rem 0;
  border-bottom: 1px solid #ece7de;
}

.lr-knowledge-report-list article:last-child { border-bottom: 0; }
.lr-knowledge-report-list h4 { margin: .35rem 0 .5rem; color: var(--knowledge-ink); font-size: 1.05rem; }
.lr-knowledge-report-list p { margin: 0; color: #66625b; line-height: 1.65; }
.lr-knowledge-report-list small { display: block; margin-top: .45rem; color: #837e75; }
.lr-knowledge-type { color: #8a5b28; font-size: .74rem; font-weight: 700; }

.lr-knowledge-source-list { display: grid; gap: 1rem; margin: 0; padding: 0; list-style: none; }
.lr-knowledge-source-list li { padding: 1rem 1.1rem; border: 1px solid #e4ded4; background: #fff; }
.lr-knowledge-source-list a { margin: 0; }
.lr-knowledge-source-list p { margin: .45rem 0 0; color: #615e58; }
.lr-knowledge-source-list span { display: block; margin-top: .35rem; color: #8a857d; font-size: .75rem; }

.lr-knowledge-answer__notice {
  padding: 1.2rem 3rem;
  color: #6e562f;
  background: #fff5e2;
  font-size: .88rem;
  line-height: 1.7;
}

.lr-knowledge-method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.lr-knowledge-method-grid article {
  padding: 2rem;
  border-top: 3px solid var(--knowledge-ink);
  background: #fff;
}

.lr-knowledge-method-grid span { color: var(--knowledge-accent); font-family: "Playfair Display", serif; font-size: 1.4rem; }
.lr-knowledge-method-grid h3 { margin: 1.1rem 0 .7rem; color: var(--knowledge-ink); font-size: 1.18rem; }
.lr-knowledge-method-grid p { margin: 0; color: #66625c; line-height: 1.75; }

.lr-knowledge-notice {
  display: grid;
  grid-template-columns: .8fr 1.5fr auto;
  gap: 2rem;
  align-items: center;
  padding: 2.2rem 2.4rem;
  border: 1px solid #d8d1c4;
  background: #f8f4ec;
}

.lr-knowledge-notice h2 { margin: .35rem 0 0; color: var(--knowledge-ink); font-size: 1.45rem; }
.lr-knowledge-notice > p { margin: 0; color: #625f58; line-height: 1.75; }
.lr-knowledge-notice .lr-btn { white-space: nowrap; }

@media (max-width: 900px) {
  .lr-knowledge-hero { padding: 4.8rem 0 3.5rem; }
  .lr-knowledge-hero__grid { grid-template-columns: 1fr; gap: 2.4rem; }
  .lr-knowledge-method-grid { grid-template-columns: 1fr; }
  .lr-knowledge-notice { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .lr-knowledge-hero__intro h1 { font-size: 2.45rem; }
  .lr-knowledge-search-card { padding: 1.35rem; border-radius: .85rem; }
  .lr-knowledge-search-row { grid-template-columns: 1fr; }
  .lr-knowledge-search-row button { min-height: 3rem; }
  #knowledge-suggestion-list { display: grid; }
  #knowledge-suggestion-list button { text-align: left; }
  .lr-knowledge-answer__header,
  .lr-knowledge-answer__section { padding: 1.6rem 1.25rem; }
  .lr-knowledge-answer__notice { padding: 1.1rem 1.25rem; }
  .lr-knowledge-report-list article { grid-template-columns: 1fr; gap: .25rem; }
  .lr-knowledge-report-list article > a { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  .lr-knowledge-search-row button { transition: none; }
}