@import "./tokens.css";

/* ——— Knowledge hub ——— */
.knowledge-hero {
  padding-block: clamp(2.5rem, 6vw, 4rem) 2rem;
}

.knowledge-hero h1 {
  max-width: 20em;
}

.knowledge-hero__intro {
  max-width: 40rem;
  font-size: clamp(1.05rem, 2vw, 1.125rem);
}

.knowledge-toolbar {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 720px) {
  .knowledge-toolbar {
    grid-template-columns: 1fr minmax(14rem, 18rem);
    align-items: end;
  }
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.category-chip {
  appearance: none;
  border: var(--border);
  background: var(--color-bg);
  color: var(--color-text);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color var(--duration) var(--ease), color var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

.category-chip:hover,
.category-chip:focus-visible {
  border-color: var(--color-green);
  color: var(--color-green-deep);
  outline: none;
}

.category-chip.is-active {
  background: var(--color-green);
  border-color: var(--color-green);
  color: var(--color-white);
}

.search-field label {
  display: block;
  font-size: var(--fs-small);
  margin-bottom: 0.35rem;
  color: var(--color-green-deep);
}

.search-field input {
  width: 100%;
  min-height: 2.75rem;
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  padding: 0.55rem 0.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
}

.search-field input:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

.knowledge-section {
  padding-bottom: 2.5rem;
}

.knowledge-section h2 {
  margin-bottom: 1.25rem;
}

.article-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 700px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .article-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 100%;
}

.section--alt .article-card {
  background: var(--color-bg);
}

.article-card__media {
  aspect-ratio: 16 / 9;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.article-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.25rem 1.2rem 1.4rem;
  flex: 1;
}

.article-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  color: color-mix(in srgb, var(--color-text) 72%, transparent);
}

.article-card__title {
  font-size: 1.15rem;
  margin: 0;
}

.article-card__title a {
  color: var(--color-green-deep);
  text-decoration: none;
}

.article-card__title a:hover,
.article-card__title a:focus-visible {
  color: var(--color-terracotta);
}

.article-card__excerpt {
  font-size: var(--fs-small);
  margin: 0;
  flex: 1;
}

.article-card__footer {
  margin-top: 0.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  background: color-mix(in srgb, var(--color-green) 14%, transparent);
  color: var(--color-green-deep);
}

.badge--demo {
  background: color-mix(in srgb, var(--color-terracotta) 18%, transparent);
  color: color-mix(in srgb, var(--color-terracotta) 55%, var(--color-text));
}

.badge--case {
  background: color-mix(in srgb, var(--color-sand) 70%, var(--color-green) 30%);
  color: var(--color-green-deep);
}

.empty-state {
  padding: 2rem 1.25rem;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  text-align: center;
}

.empty-state[hidden],
[data-featured-section][hidden],
.load-more-wrap[hidden] {
  display: none !important;
}

.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 1.75rem;
}

.results-count {
  font-size: var(--fs-small);
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
  margin-bottom: 1rem;
}

/* ——— Article page ——— */
.article-page {
  padding-block: 2rem var(--section-pad-y);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  font-size: var(--fs-small);
  margin-bottom: 1.5rem;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}

.breadcrumb a {
  text-decoration: none;
  color: var(--color-green-deep);
}

.breadcrumb a:hover {
  color: var(--color-terracotta);
}

.article-header {
  max-width: 44rem;
  margin-bottom: 1.75rem;
}

.article-header__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.article-header h1 {
  margin-bottom: 0.65rem;
}

.article-header__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: color-mix(in srgb, var(--color-text) 88%, transparent);
  margin-bottom: 1rem;
}

.article-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: var(--fs-small);
  color: color-mix(in srgb, var(--color-text) 72%, transparent);
}

.article-cover {
  margin: 0 0 2rem;
  border-radius: 1rem;
  overflow: hidden;
  border: var(--border);
  aspect-ratio: 16 / 9;
  background: var(--color-bg-alt);
  max-width: 52rem;
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 960px) {
  .article-layout {
    grid-template-columns: 14rem minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }
}

.article-toc {
  border: var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  background: var(--color-bg-alt);
}

@media (min-width: 960px) {
  .article-toc {
    position: sticky;
    top: calc(var(--header-height) + 1rem);
  }
}

.article-toc h2 {
  font-size: 0.95rem;
  margin-bottom: 0.65rem;
}

.article-toc ol {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.45rem;
}

.article-toc a {
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--color-text);
}

.article-toc a:hover {
  color: var(--color-green-deep);
}

.article-prose {
  max-width: 42rem;
  font-size: clamp(1.05rem, 1.6vw, 1.125rem);
  line-height: 1.85;
}

.article-prose > * + * {
  margin-top: 1.15rem;
}

.article-prose h2 {
  margin-top: 2.25rem;
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.article-prose h3 {
  margin-top: 1.6rem;
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.article-prose ul,
.article-prose ol {
  padding-left: 1.25rem;
  list-style: disc;
}

.article-prose ol {
  list-style: decimal;
}

.article-prose li + li {
  margin-top: 0.4rem;
}

.article-prose blockquote {
  margin: 1.5rem 0;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--color-green);
  background: color-mix(in srgb, var(--color-bg-alt) 80%, transparent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-callout {
  margin: 1.75rem 0;
  padding: 1rem 1.15rem;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  font-size: var(--fs-small);
}

.article-callout--warning {
  border-color: color-mix(in srgb, var(--color-terracotta) 55%, var(--color-sand));
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 2rem;
}

.article-tag {
  font-size: 0.8125rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: var(--border);
  color: var(--color-green-deep);
  background: var(--color-bg);
}

.article-refs {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid color-mix(in srgb, var(--color-sand) 80%, transparent);
}

.article-refs h2 {
  font-size: 1.15rem;
}

.article-refs ol {
  padding-left: 1.2rem;
  list-style: decimal;
  font-size: var(--fs-small);
}

.article-bottom-cta {
  margin-top: 3rem;
  padding: 1.75rem 1.35rem;
  border-radius: var(--radius);
  border: var(--border);
  background: var(--color-bg-alt);
  text-align: center;
}

.article-bottom-cta .btn-group {
  justify-content: center;
  margin-top: 1rem;
}

.related-articles {
  margin-top: 3rem;
  padding-top: 0.5rem;
}

.related-articles h2 {
  margin-bottom: 1.25rem;
}

.nav-current {
  color: var(--color-green-deep) !important;
  font-weight: 500;
}

.demo-banner {
  margin-bottom: 1.25rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-terracotta) 14%, var(--color-bg));
  border: 1px solid color-mix(in srgb, var(--color-terracotta) 35%, var(--color-sand));
  font-size: var(--fs-small);
  color: var(--color-text);
}