/* ──────────────────────────────────────────────
   AC KNOWLEDGE — searchable crypto glossary
   ────────────────────────────────────────────── */

.kn-page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.kn-header { margin-bottom: 32px; }
.kn-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 12px;
}
.kn-title .chrome-text-subtle { font-weight: 700; }
.kn-sub {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0;
  line-height: 1.5;
}

/* Search */
.kn-search-wrap {
  position: relative;
  margin-bottom: 24px;
}
.kn-search-input {
  width: 100%;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  padding: 14px 22px;
  font-size: 16px;
  color: var(--text);
  font-family: inherit;
  transition: border-color 200ms, background 200ms;
  box-sizing: border-box;
}
.kn-search-input::placeholder { color: var(--text-tertiary); }
.kn-search-input:focus {
  outline: none;
  border-color: var(--green);
  background: var(--bg-surface-2);
}

.kn-search-results-count {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

/* Category jump nav */
.kn-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}
.kn-cat-pill {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color 200ms, color 200ms, background 200ms;
  cursor: pointer;
}
.kn-cat-pill:hover {
  color: var(--green);
  border-color: var(--green);
}

/* Categories & terms */
.kn-categories {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.kn-category {
  scroll-margin-top: 120px; /* offset for fixed navbar + ticker */
}

.kn-category-header {
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.kn-category-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
  color: var(--text);
}
.kn-category-desc {
  font-size: 13px;
  color: var(--text-tertiary);
  margin: 0;
}

.kn-terms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 768px) {
  .kn-terms { grid-template-columns: 1fr; }
}

.kn-term {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 16px 18px;
  transition: border-color 200ms, transform 200ms, background 200ms;
}
.kn-term:hover {
  border-color: var(--border-default);
  background: var(--bg-surface-2);
  transform: translateY(-1px);
}
.kn-term-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}
.kn-term-def {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* Search highlight */
.kn-highlight {
  background: rgba(0, 197, 102, 0.18);
  color: var(--green);
  border-radius: 3px;
  padding: 0 2px;
}

/* Empty state */
.kn-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
  font-size: 14px;
}
.kn-empty p { margin: 0 0 16px; }

/* Hidden during search filter */
.kn-category.is-hidden { display: none; }
.kn-term.is-hidden { display: none; }