.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: oklch(0.995 0.002 95 / 0.94);
  backdrop-filter: blur(10px);
}

.site-header__inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.15;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  background: var(--color-accent);
  color: white;
  font-size: 17px;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 18px;
}

.desktop-nav a,
.mobile-nav a {
  color: oklch(0.32 0.01 260);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current='page'],
.mobile-nav a:hover,
.mobile-nav a[aria-current='page'] {
  color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-button {
  display: inline-grid;
  width: 40px;
  height: 40px;
  padding: 0;
  place-items: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: oklch(0.35 0.01 260);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.icon-button:hover {
  background: var(--color-surface-soft);
  color: var(--color-accent);
  transform: scale(1.05);
}

.mobile-nav {
  position: fixed;
  inset: var(--header-height) 0 auto;
  max-height: calc(100vh - var(--header-height));
  padding: 12px max(16px, calc((100vw - var(--container)) / 2));
  overflow-y: auto;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.mobile-nav a {
  display: block;
  padding: 12px 4px;
  border-bottom: 1px solid oklch(0.94 0.006 90);
}

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

.article-card {
  display: flex;
  height: 100%;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: inherit;
  text-decoration: none;
  transition: box-shadow var(--transition), transform var(--transition);
}

.article-card:hover {
  color: inherit;
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.article-card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-accent-soft), var(--color-surface-soft));
}

.article-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.article-card:hover .article-card__media img {
  transform: scale(1.02);
}

.article-card__media.is-image-missing img {
  opacity: 0;
}

.article-card__media.is-image-missing::after {
  content: attr(data-image-label);
  position: absolute;
  inset: 0;
  display: grid;
  padding: 20px;
  place-items: center;
  color: var(--color-accent-deep);
  font-family: var(--font-heading);
  text-align: center;
}

.article-card__body {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
}

.article-card__category,
.eyebrow {
  color: var(--color-accent-deep);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.article-card__title {
  margin: 0;
  font-size: clamp(18px, 2vw, 20px);
}

.article-card__excerpt {
  margin: 0;
  color: var(--color-muted);
  font-size: 14.5px;
  line-height: 1.6;
}

.article-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 4px;
  color: var(--color-subtle);
  font-size: 13px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag {
  max-width: 100%;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent-deep);
  font-size: 12.5px;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination__link {
  display: inline-flex;
  min-width: 42px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 8px 13px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
}

.pagination__link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-deep);
}

.pagination__link.is-current {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: white;
}

.pagination__link.is-disabled {
  color: var(--color-subtle);
  cursor: not-allowed;
  opacity: 0.65;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.roadmap-card {
  display: block;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.roadmap-card:hover {
  border-color: oklch(0.78 0.08 50);
  color: inherit;
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.roadmap-card > span {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-deep);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
}

.roadmap-card h3 {
  margin: 16px 0 7px;
  font-size: 18px;
  overflow-wrap: anywhere;
}

.roadmap-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.empty-state {
  padding: clamp(32px, 7vw, 72px) 24px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  text-align: center;
}

.empty-state h2 {
  margin-top: 0;
}

.search-form {
  display: flex;
  max-width: 760px;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  box-shadow: 0 12px 36px oklch(0.2 0.02 260 / 0.06);
}

.search-form__field {
  min-width: 0;
  flex: 1;
  padding: 10px 12px;
  border: 0;
  background: transparent;
  outline: 0;
}

.search-results {
  display: grid;
  gap: 16px;
}

.search-result {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--transition), transform var(--transition);
}

.search-result:hover {
  border-color: oklch(0.78 0.08 50);
  color: inherit;
  transform: translateY(-2px);
}

.search-result__media {
  min-height: 132px;
  background: var(--color-surface-soft);
}

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

.search-result__body {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 16px 16px 16px 0;
}

.search-result__title {
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: 18px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.search-result__excerpt {
  display: none;
  color: var(--color-muted);
  font-size: 14px;
}

.search-result__time {
  color: var(--color-subtle);
  font-size: 12.5px;
}

@media (min-width: 680px) {
  .search-result {
    grid-template-columns: 210px minmax(0, 1fr);
  }

  .search-result__excerpt {
    display: block;
  }
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.button--accent {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: white;
}

.site-footer {
  padding-block: 48px 24px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-footer__grid {
  display: grid;
  gap: 28px;
}

.site-footer h2 {
  margin: 0 0 12px;
  font-size: 15px;
}

.site-footer ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer a,
.site-footer p {
  color: var(--color-muted);
  font-size: 14px;
  text-decoration: none;
}

.site-footer__bottom {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
  color: var(--color-subtle);
  font-size: 13px;
}

@media (min-width: 768px) {
  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__grid {
    grid-template-columns: minmax(220px, 1.4fr) repeat(2, 1fr);
  }

  .roadmap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .desktop-nav {
    display: flex;
  }

  [data-menu-button],
  .mobile-nav {
    display: none !important;
  }

  .article-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .roadmap-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-card:hover,
  .article-card:hover .article-card__media img,
  .icon-button:hover {
    transform: none;
  }

  .roadmap-card:hover {
    transform: none;
  }
}