/* ParagraphAI knowledge base. Scoped to .kb-* so it never touches marketing pages. */
:root {
  --kb-ink: #212121;
  --kb-muted: #5f5b66;
  --kb-line: #ececec;
  --kb-surface: #ffffff;
  --kb-tint: #f9f7fc;
  --kb-accent: #7b4fa0;
  --kb-accent-dark: #4b315e;
  --kb-shadow: 0 11px 17px #6767671a;
  --kb-radius: 12px;
}

.kb-hero,
.kb-layout,
.kb-main,
.kb-sidebar,
.kb-card,
.kb-list-item,
.kb-popular-card,
.kb-contact {
  font-family: Manrope, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--kb-ink);
}

/* ---------- hero ---------- */
.kb-block + .kb-block { margin-top: 3rem; }
.kb-hero { max-width: 760px; margin: 0 auto 3rem; padding: 0.5rem 0 0; text-align: center; }
.kb-eyebrow {
  margin: 0 0 0.75rem; font-size: 13px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--kb-accent);
}
.kb-hero-title { margin: 0 0 0.6rem; font-size: 44px; line-height: 1.15; font-weight: 800; }
.kb-hero-text { margin: 0 0 1.75rem; font-size: 18px; color: var(--kb-muted); }

/* ---------- search ---------- */
.kb-search { position: relative; display: block; }
.kb-search-label {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}
.kb-search-icon {
  position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  color: var(--kb-accent); pointer-events: none; font-size: 24px;
}
.kb-search-input {
  width: 100%; box-sizing: border-box; padding: 1rem 1.1rem 1rem 3.25rem;
  font-size: 17px; font-family: inherit; color: var(--kb-ink);
  background: var(--kb-surface); border: 2px solid var(--kb-line);
  border-radius: 999px; box-shadow: var(--kb-shadow); transition: border-color .2s, box-shadow .2s;
}
.kb-search-input:focus {
  outline: none; border-color: var(--kb-accent); box-shadow: 0 0 0 4px #7b4fa022, var(--kb-shadow);
}
.kb-search-input::-webkit-search-cancel-button { cursor: pointer; }
.kb-search-status { margin: 0.75rem 0 0; min-height: 1.2em; font-size: 14px; color: var(--kb-muted); text-align: left; }
.kb-search-results { margin-top: 0.5rem; text-align: left; display: grid; gap: 0.5rem; }
.kb-search-result {
  display: block; padding: 0.9rem 1.1rem; text-decoration: none; color: inherit;
  background: var(--kb-surface); border: 2px solid var(--kb-line);
  border-radius: var(--kb-radius); transition: border-color .2s, box-shadow .2s, transform .2s;
}
.kb-search-result:hover, .kb-search-result:focus-visible {
  border-color: var(--kb-accent); box-shadow: var(--kb-shadow); transform: translateY(-1px);
}
.kb-search-result-title { display: block; font-weight: 700; font-size: 16px; }
.kb-search-result-path { display: block; margin-top: 2px; font-size: 13px; color: var(--kb-accent); }
.kb-search-result-excerpt { display: block; margin-top: 4px; font-size: 14px; color: var(--kb-muted); }
.kb-search-result mark { background: #f3eef9; color: inherit; border-radius: 3px; padding: 0 2px; }

/* ---------- section headings ---------- */
.kb-section-head { margin: 0 0 1.25rem; }
.kb-section-title { margin: 0; font-size: 25px; line-height: 1.25; font-weight: 800; }

/* ---------- popular ---------- */
.kb-popular-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.kb-popular-card {
  display: flex; gap: 0.75rem; align-items: flex-start; padding: 1rem 1.1rem;
  text-decoration: none; color: inherit; background: var(--kb-surface);
  border: 2px solid var(--kb-line); border-radius: var(--kb-radius);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.kb-popular-card:hover, .kb-popular-card:focus-visible {
  border-color: var(--kb-accent); box-shadow: var(--kb-shadow); transform: translateY(-2px);
}
.kb-popular-icon { color: var(--kb-accent); font-size: 22px; line-height: 1.4; }
.kb-popular-text { display: block; }
.kb-popular-title { display: block; font-weight: 700; font-size: 17px; }
.kb-popular-meta { display: block; margin-top: 2px; font-size: 13px; color: var(--kb-muted); }

/* ---------- category cards ---------- */
.kb-card-grid { display: grid; align-items: stretch; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.kb-card {
  display: flex; flex-direction: column; padding: 1.5rem; text-decoration: none; color: inherit;
  background: var(--kb-surface); border: 2px solid var(--kb-line); border-radius: var(--kb-radius);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.kb-card:hover, .kb-card:focus-visible {
  border-color: var(--kb-accent); box-shadow: var(--kb-shadow); transform: translateY(-2px);
}
.kb-card-icon {
  width: 46px; height: 46px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 0.9rem; border-radius: 12px; background: var(--kb-tint); color: var(--kb-accent);
}
.kb-card-title { font-size: 19px; font-weight: 800; }
.kb-card-blurb { margin-top: 0.35rem; font-size: 15px; color: var(--kb-muted); }
.kb-card-topics { margin: 0.9rem 0 1rem; padding: 0; list-style: none; font-size: 14px; color: var(--kb-muted); }
.kb-card-topics li { padding: 2px 0 2px 1rem; position: relative; }
.kb-card-topics li::before {
  content: ""; position: absolute; left: 0; top: 11px; width: 5px; height: 5px;
  border-radius: 50%; background: var(--kb-accent); opacity: .55;
}
.kb-card-more { font-style: italic; }
.kb-card-count { margin-top: auto; font-size: 13px; font-weight: 700; color: var(--kb-accent); }

/* ---------- breadcrumbs ---------- */
.kb-breadcrumbs { margin: 0 0 1.5rem; }
.kb-breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; padding: 0; list-style: none; }
.kb-breadcrumbs li { font-size: 14px; color: var(--kb-muted); }
.kb-breadcrumbs li + li::before { content: "/"; margin-right: 0.35rem; color: #c9c4d0; }
.kb-breadcrumbs a { color: var(--kb-accent); text-decoration: none; }
.kb-breadcrumbs a:hover { text-decoration: underline; }
.kb-breadcrumbs li[aria-current] { color: var(--kb-ink); font-weight: 600; }

/* ---------- two column layout ---------- */
.kb-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 2rem; align-items: start; }
.kb-sidebar { position: sticky; top: 100px; display: grid; gap: 1.25rem; }
.kb-side-block {
  padding: 1.1rem; background: var(--kb-surface); border: 2px solid var(--kb-line);
  border-radius: var(--kb-radius); box-shadow: var(--kb-shadow);
}
.kb-side-title {
  margin: 0 0 0.6rem; font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--kb-muted);
}
.kb-side-links, .kb-side-articles { display: grid; gap: 2px; }
.kb-side-link, .kb-side-article {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.6rem;
  font-size: 15px; color: var(--kb-ink); text-decoration: none; border-radius: 8px;
  transition: background-color .15s, color .15s;
}
.kb-side-article { font-size: 14px; }
.kb-side-link:hover, .kb-side-article:hover { background: var(--kb-tint); color: var(--kb-accent-dark); }
.kb-side-link.is-current, .kb-side-article.is-current {
  background: var(--kb-tint); color: var(--kb-accent-dark); font-weight: 700;
}
.kb-side-icon { font-size: 20px; color: var(--kb-accent); }
.kb-side-help-text { margin: 0 0 0.75rem; font-size: 14px; color: var(--kb-muted); }

/* ---------- page head ---------- */
.kb-page-head { margin-bottom: 1.75rem; }
.kb-page-eyebrow {
  margin: 0 0 0.4rem; font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--kb-accent);
}
.kb-page-title { margin: 0; font-size: 34px; line-height: 1.2; font-weight: 800; }
.kb-page-meta { margin: 0.5rem 0 0; font-size: 14px; color: var(--kb-muted); }
.kb-page-blurb { margin: 0.75rem 0 0; font-size: 17px; color: var(--kb-muted); }

/* ---------- article lists ---------- */
.kb-folder, .kb-related { margin-bottom: 2.25rem; }
.kb-folder-title { margin: 0 0 0.9rem; font-size: 22px; font-weight: 800; }
.kb-list { display: grid; gap: 0.5rem; }
.kb-list-item {
  display: block; padding: 0.9rem 1.1rem; text-decoration: none; color: inherit;
  background: var(--kb-surface); border: 2px solid var(--kb-line); border-radius: var(--kb-radius);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.kb-list-item:hover, .kb-list-item:focus-visible {
  border-color: var(--kb-accent); box-shadow: var(--kb-shadow); transform: translateY(-1px);
}
.kb-list-title { display: block; font-weight: 700; font-size: 16px; }
.kb-list-excerpt { display: block; margin-top: 3px; font-size: 14px; color: var(--kb-muted); }

/* ---------- article prose ---------- */
.kb-article {
  padding: 2rem; background: var(--kb-surface); border: 2px solid var(--kb-line);
  border-radius: var(--kb-radius); box-shadow: var(--kb-shadow); margin-bottom: 2.25rem;
}
.kb-prose { font-size: 17px; line-height: 1.7; color: var(--kb-ink); }
.kb-prose > :first-child { margin-top: 0; }
.kb-prose > :last-child { margin-bottom: 0; }
.kb-prose p { margin: 0 0 1rem; }
.kb-prose h2 { margin: 2rem 0 0.75rem; font-size: 23px; line-height: 1.3; font-weight: 800; }
.kb-prose h3 { margin: 1.75rem 0 0.6rem; font-size: 20px; line-height: 1.35; font-weight: 800; }
.kb-prose h4, .kb-prose h5, .kb-prose h6 { margin: 1.5rem 0 0.5rem; font-size: 17px; font-weight: 800; }
.kb-prose ul, .kb-prose ol { margin: 0 0 1rem; padding-left: 1.5rem; }
.kb-prose li { margin-bottom: 0.4rem; }
.kb-prose li > p { margin: 0 0 0.25rem; }
.kb-prose li > ul, .kb-prose li > ol { margin-top: 0.4rem; }
.kb-prose a { color: var(--kb-accent); text-decoration: underline; text-underline-offset: 2px; }
.kb-prose a:hover { color: var(--kb-accent-dark); }
.kb-prose strong { font-weight: 700; }
.kb-prose blockquote {
  margin: 0 0 1rem; padding: 0.75rem 1.1rem; border-left: 4px solid var(--kb-accent);
  background: var(--kb-tint); border-radius: 0 8px 8px 0; color: var(--kb-muted);
}
.kb-prose code {
  font-family: Inconsolata, ui-monospace, monospace; font-size: 0.95em;
  background: var(--kb-tint); padding: 0.1em 0.35em; border-radius: 4px;
}
.kb-prose pre { overflow-x: auto; padding: 1rem; background: var(--kb-tint); border-radius: 8px; }
.kb-prose img { max-width: 100%; height: auto; border-radius: 8px; }
.kb-prose iframe {
  width: 100%; max-width: 100%; aspect-ratio: 16 / 9; height: auto;
  border: 0; border-radius: 10px; margin: 0.5rem 0 1.25rem; display: block;
}
.kb-prose table { width: 100%; border-collapse: collapse; margin: 0 0 1.25rem; font-size: 15px; }
.kb-prose th, .kb-prose td { padding: 0.6rem 0.75rem; border: 1px solid var(--kb-line); text-align: left; }
.kb-prose th { background: var(--kb-tint); font-weight: 700; }
.kb-prose hr { border: 0; border-top: 1px solid var(--kb-line); margin: 1.75rem 0; }

/* ---------- buttons and contact band ---------- */
.kb-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.7rem 1.4rem; font-size: 15px; font-weight: 700; text-decoration: none;
  border-radius: 999px; border: 2px solid var(--kb-accent); transition: background-color .2s, color .2s;
}
.kb-button-solid { background: var(--kb-accent); color: #fff; }
.kb-button-solid:hover { background: var(--kb-accent-dark); border-color: var(--kb-accent-dark); color: #fff; }
.kb-button-ghost { background: transparent; color: var(--kb-accent); }
.kb-button-ghost:hover { background: var(--kb-tint); }
.kb-contact { margin-top: 3rem; }
.kb-contact-inner {
  padding: 2rem; text-align: center; background: var(--kb-tint);
  border: 2px solid #e6dcf2; border-radius: var(--kb-radius);
}
.kb-contact-title { margin: 0 0 0.5rem; font-size: 22px; font-weight: 800; }
.kb-contact-text { margin: 0 0 1.25rem; font-size: 16px; color: var(--kb-muted); }
.kb-contact-text a { color: var(--kb-accent); }
.kb-contact-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }

/* ---------- responsive ---------- */
@media (max-width: 991px) {
  .kb-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .kb-sidebar { position: static; }
  .kb-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 767px) {
  .kb-hero-title { font-size: 32px; }
  .kb-hero-text { font-size: 16px; }
  .kb-page-title { font-size: 27px; }
  .kb-card-grid, .kb-popular-grid { grid-template-columns: 1fr; }
  .kb-article { padding: 1.25rem; }
  .kb-prose { font-size: 16px; }
  .kb-contact-inner { padding: 1.5rem 1.25rem; }
  .kb-contact-actions { flex-direction: column; }
  .kb-button { width: 100%; }
}