:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #1d2433;
  --muted: #5e6b85;
  --line: #dce4f1;
  --primary: #5967ff;
  --primary-2: #7d59ff;
  --shadow: 0 16px 36px rgba(45, 65, 120, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
}

.hero {
  background: linear-gradient(135deg, #253a8f, #5e63ff 55%, #7d59ff);
  color: #fff;
  padding: 40px 0 48px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 24px;
  align-items: center;
}

.brand-logo {
  max-width: 220px;
  max-height: 68px;
  display: block;
  margin-bottom: 20px;
}

.hero-copy h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.08;
}

.hero-copy p {
  margin: 0;
  max-width: 680px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 16px;
}

.search-card {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 20px;
  padding: 22px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.search-label {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 700;
}

.search-input {
  width: 100%;
  border: none;
  outline: none;
  border-radius: 14px;
  padding: 16px 18px;
  font-size: 16px;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.search-clear {
  border: none;
  outline: none;
  border-radius: 14px;
  padding: 0 16px;
  min-height: 52px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 28px;
  line-height: 1;
}

.search-clear:hover {
  background: rgba(255, 255, 255, 0.24);
}

.search-hint {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
}

.main-content {
  padding: 28px 0 48px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumbs a {
  color: var(--primary);
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.categories {
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.category-card {
  position: relative;
  overflow: hidden;
  padding: 20px;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: start;
  column-gap: 16px;
  background: linear-gradient(180deg, #ffffff, #fbfcff);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.category-card--no-media {
  grid-template-columns: minmax(0, 1fr);
}

.category-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
}

.category-card:hover {
  transform: translateY(-4px);
  border-color: rgba(89, 103, 255, 0.22);
  box-shadow: 0 20px 40px rgba(45, 65, 120, 0.16);
}

.category-card-media {
  position: relative;
  z-index: 1;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #f6f8ff, #eef3ff);
  border: 1px solid #e2eaf9;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.category-card-image {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.category-card-body {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.category-card--no-media .category-card-body {
  grid-column: 1 / -1;
}

.category-card h2 {
  position: relative;
  z-index: 1;
  font-size: 22px;
  line-height: 1.22;
}

.category-description {
  margin: 0;
  position: relative;
  z-index: 1;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(89, 103, 255, 0.09);
  color: var(--primary);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 700;
  width: fit-content;
}

.category-card h2,
.article-view h1,
.section-title {
  margin: 0;
}

.category-card p,
.muted {
  color: var(--muted);
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-card {
  padding: 18px 20px;
}

.article-card h3 {
  margin: 0;
  font-size: 18px;
}

.article-meta {
  font-size: 13px;
  color: var(--muted);
}

.article-summary {
  margin: 10px 0 0;
  color: var(--muted);
}

.article-list-compact .article-card {
  padding: 16px 18px;
}

.article-list-compact .article-card h3 {
  font-size: 17px;
  line-height: 1.4;
}

.search-match {
  display: inline-flex;
  margin-top: 10px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 700;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 24px;
}

.article-view,
.side-panel,
.empty-state {
  padding: 24px;
}

.article-view .article-meta {
  margin: 10px 0 18px;
}

.article-body {
  line-height: 1.7;
}

.article-body img {
  max-width: 100%;
  border-radius: 16px;
}

.article-body a {
  color: var(--primary);
}

.side-panel h3 {
  margin: 0 0 14px;
  font-size: 18px;
}

.side-panel .related-list {
  display: grid;
  gap: 10px;
}

.side-panel .related-link {
  color: var(--primary);
}

.button-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 700;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
}

.search-results {
  margin-top: 28px;
}

.empty-state {
  text-align: center;
  color: var(--muted);
}

@media (max-width: 960px) {
  .hero-inner,
  .article-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100vw - 24px, 1180px);
  }

  .grid.categories {
    grid-template-columns: 1fr;
  }

  .category-card {
    grid-template-columns: 56px minmax(0, 1fr);
    column-gap: 14px;
    padding: 18px;
  }
}