:root {
  --ie-kb-bg: #f6f8fb;
  --ie-kb-surface: #ffffff;
  --ie-kb-card: #f1f5f9;
  --ie-kb-highlight: var(--ie-color-accent, #2563eb);
  --ie-kb-highlight-soft: var(--ie-color-wash, #e0e7ff);
  --ie-kb-highlight-rgb: var(--ie-color-accent-rgb, 37, 99, 235);
  --ie-kb-muted: #475569;
  --ie-kb-heading: #0f172a;
  --ie-kb-border: #d7deea;
  --ie-kb-radius: 16px;
  --ie-kb-shadow: 0 14px 40px rgba(15, 23, 42, 0.14);
}

.ie-kb {
  position: relative;
  background: radial-gradient(circle at 20% 15%, rgba(var(--ie-kb-highlight-rgb), 0.12), transparent 30%),
    radial-gradient(circle at 80% 8%, rgba(16, 185, 129, 0.12), transparent 24%),
    var(--ie-kb-bg);
  color: var(--ie-kb-heading);
  border-radius: 20px;
  box-shadow: var(--ie-kb-shadow);
  padding: 34px 30px 38px;
  overflow: hidden;
  border: 1px solid #e5eaf3;
}

.ie-kb__hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 26px;
}

.ie-kb__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--ie-kb-highlight-soft);
  border: 1px solid var(--ie-kb-border);
  border-radius: 999px;
  color: var(--ie-kb-highlight);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  font-size: 12px;
}

.ie-kb__title {
  font-size: 34px;
  line-height: 1.2;
  margin: 12px 0 10px;
  color: var(--ie-kb-heading);
}

.ie-kb__lede {
  color: var(--ie-kb-muted);
  font-size: 16px;
  margin: 0;
}

.ie-kb__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.ie-kb__pill {
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--ie-kb-border);
  background: #fff;
  color: var(--ie-kb-heading);
  font-weight: 600;
  transition: all 0.18s ease;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
}

.ie-kb__pill:hover,
.ie-kb__pill:focus-visible,
.ie-kb__pill.is-active {
  color: #0f172a;
  background: var(--ie-kb-highlight-soft);
  border-color: var(--ie-kb-highlight);
  outline: none;
  box-shadow: 0 6px 20px rgba(var(--ie-kb-highlight-rgb), 0.14);
}

.ie-kb__controls {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 16px;
  align-items: center;
  margin-bottom: 22px;
}

.ie-kb__search {
  position: relative;
}

.ie-kb__search input {
  width: 100%;
  padding: 14px 46px 14px 48px;
  border-radius: var(--ie-kb-radius);
  border: 1px solid var(--ie-kb-border);
  background: var(--ie-kb-surface);
  color: var(--ie-kb-heading);
  font-size: 15px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.ie-kb__search input:focus {
  border-color: var(--ie-kb-highlight);
  box-shadow: 0 10px 22px rgba(var(--ie-kb-highlight-rgb), 0.12);
  outline: none;
}

.ie-kb__search .dashicons {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  color: var(--ie-kb-highlight);
  font-size: 18px;
}

.ie-kb__status {
  text-align: right;
  color: var(--ie-kb-muted);
  font-size: 14px;
  font-weight: 600;
}

.ie-kb__layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 20px;
  align-items: start;
}

.ie-kb__list {
  background: var(--ie-kb-surface);
  border: 1px solid var(--ie-kb-border);
  border-radius: var(--ie-kb-radius);
  padding: 16px;
  max-height: 640px;
  overflow: auto;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8), 0 14px 30px rgba(15, 23, 42, 0.08);
}

.ie-kb__card {
  width: 100%;
  text-align: left;
  background: var(--ie-kb-card);
  border: 1px solid var(--ie-kb-border);
  border-radius: 12px;
  padding: 12px 14px;
  color: inherit;
  margin-bottom: 12px;
  transition: all 0.18s ease;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.04);
}

.ie-kb__card:hover,
.ie-kb__card:focus-visible {
  border-color: var(--ie-kb-highlight);
  box-shadow: 0 12px 26px rgba(var(--ie-kb-highlight-rgb), 0.14);
  outline: none;
  transform: translateY(-2px);
}

.ie-kb__card.is-active {
  background: linear-gradient(120deg, #ffffff, #eef2ff);
  border-color: var(--ie-kb-highlight);
  box-shadow: 0 12px 26px rgba(var(--ie-kb-highlight-rgb), 0.14);
}

.ie-kb__card.is-dimmed {
  opacity: 0.45;
}

.ie-kb__card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--ie-kb-heading);
}

.ie-kb__card p {
  margin: 0;
  color: var(--ie-kb-muted);
  font-size: 14px;
}

.ie-kb__tags {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.ie-kb__tag {
  background: #fff;
  padding: 6px 10px;
  border-radius: 10px;
  color: var(--ie-kb-muted);
  font-weight: 700;
  font-size: 12px;
  border: 1px solid var(--ie-kb-border);
}

.ie-kb__detail {
  background: var(--ie-kb-surface);
  border: 1px solid var(--ie-kb-border);
  border-radius: var(--ie-kb-radius);
  padding: 20px 22px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8), 0 16px 32px rgba(15, 23, 42, 0.08);
}

.ie-kb__article {
  display: none;
}

.ie-kb__article.is-active {
  display: block;
}

.ie-kb__article h2 {
  margin: 0 0 12px;
  font-size: 24px;
  color: var(--ie-kb-heading);
}

.ie-kb__article .ie-kb__meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  color: var(--ie-kb-highlight);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.ie-kb__article p,
.ie-kb__article li {
  color: #1f2937;
  line-height: 1.65;
  font-size: 15px;
}

.ie-kb__article ul,
.ie-kb__article ol {
  padding-left: 22px;
  margin: 10px 0 18px;
}

.ie-kb__article .ie-kb__callout {
  border-left: 4px solid var(--ie-kb-highlight);
  background: #eef2ff;
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0;
  color: var(--ie-kb-heading);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.ie-kb__empty {
  display: none;
  margin-top: 12px;
  color: var(--ie-kb-muted);
  font-weight: 600;
}

.ie-kb__empty.is-visible {
  display: block;
}

@media (max-width: 1080px) {
  .ie-kb__hero {
    grid-template-columns: 1fr;
  }

  .ie-kb__pills {
    justify-content: flex-start;
  }

  .ie-kb__controls {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .ie-kb__layout {
    grid-template-columns: 1fr;
  }

  .ie-kb__list {
    max-height: none;
  }
}