.radar-page {
  color: var(--color-text);
}

.radar-layout {
  display: grid;
  gap: 4.5rem;
}

.radar-page h1 {
  max-width: 18ch;
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
}

.radar-page h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
}

.radar-page h3 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.15;
}

.radar-page a:focus-visible,
.radar-page button:focus-visible,
.radar-page select:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 4px;
}

.radar-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.45fr);
  gap: 1.5rem;
  padding-top: 2.5rem;
}

.radar-hero > div,
.radar-hero__meta,
.radar-featured,
.radar-filter-panel,
.radar-principles,
.radar-toc,
.radar-notice {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgb(21 30 50 / 94%), rgb(16 26 44 / 82%));
  box-shadow: var(--shadow-soft);
}

.radar-hero > div {
  padding: clamp(1.5rem, 4vw, 3.5rem);
}

.radar-hero__meta {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.6rem;
}

.radar-lead {
  max-width: 72ch;
  margin: 1.5rem 0 0;
  color: var(--color-light-muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.65;
}

.radar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.radar-label {
  margin: 1.3rem 0 0.25rem;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.radar-date {
  margin: 0;
  color: var(--color-light);
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
}

.radar-small {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.radar-section,
.radar-issue__topics {
  display: grid;
  gap: 1.35rem;
}

.radar-section__heading {
  display: grid;
  gap: 0.35rem;
}

.radar-section__heading--split {
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 1rem;
}

.radar-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  color: var(--color-text-muted);
  font-size: 0.84rem;
}

.radar-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.28rem 0.65rem;
  border: 1px solid rgb(2 207 231 / 30%);
  border-radius: 999px;
  color: var(--color-light-muted);
  background: rgb(2 207 231 / 8%);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.radar-badge--draft,
.radar-badge--developing {
  border-color: rgb(255 190 92 / 46%);
  color: #ffe1ae;
  background: rgb(180 105 0 / 18%);
}

.radar-badge--confirmed {
  border-color: rgb(17 192 152 / 38%);
  color: #a9f3de;
  background: rgb(17 192 152 / 12%);
}

.radar-badge--unverified {
  border-color: rgb(255 120 120 / 46%);
  color: #ffd1d1;
  background: rgb(166 39 39 / 18%);
}

.radar-featured {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 0;
  overflow: hidden;
}

.radar-featured > div {
  padding: clamp(1.35rem, 3vw, 2.25rem);
}

.radar-featured__action {
  border-left: 1px solid var(--color-line);
  background: rgb(2 207 231 / 5%);
}

.radar-featured__summary {
  color: var(--color-light);
  font-size: 1.2rem;
}

.radar-category-grid,
.radar-topic-grid,
.radar-method-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.radar-category-card,
.radar-card,
.radar-issue-topic,
.radar-secondary-nav a {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: rgb(18 26 44 / 76%);
}

.radar-category-card,
.radar-card,
.radar-issue-topic {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.radar-category-card__count {
  margin: 0 0 1.8rem;
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.radar-card h2,
.radar-card h3,
.radar-category-card h3,
.radar-issue-topic h2 {
  margin-top: 0.8rem;
}

.radar-card h2 a,
.radar-card h3 a {
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.18em;
}

.radar-card h2 a:hover,
.radar-card h3 a:hover {
  text-decoration-color: var(--color-primary);
}

.radar-card__why,
.radar-issue-topic__summary {
  color: var(--color-light-muted);
}

.radar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.radar-tags li {
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  color: var(--color-text-muted);
  background: rgb(244 247 250 / 6%);
  font-size: 0.75rem;
}

.radar-text-link {
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: rgb(2 207 231 / 35%);
  text-underline-offset: 0.28rem;
}

.radar-build-list ol,
.radar-principles ol {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding-left: 1.4rem;
}

.radar-build-list li,
.radar-principles li {
  padding: 0.7rem 0 0.7rem 0.45rem;
  border-bottom: 1px solid var(--color-line);
}

.radar-secondary-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.radar-secondary-nav a {
  display: grid;
  gap: 0.55rem;
  padding: 1.2rem;
}

.radar-secondary-nav span {
  color: var(--color-text-muted);
}

.radar-page-header,
.radar-issue__header {
  display: grid;
  gap: 1rem;
  max-width: 900px;
  padding-top: 2.5rem;
}

.radar-notice {
  padding: 1rem 1.2rem;
  border-color: rgb(255 190 92 / 42%);
  color: #ffe1ae;
}

.radar-toc {
  margin-top: 2rem;
  padding: 1.3rem 1.6rem;
}

.radar-toc ol {
  columns: 2;
  gap: 2.5rem;
  padding-left: 1.4rem;
}

.radar-toc a {
  text-decoration: underline;
  text-decoration-color: rgb(2 207 231 / 35%);
  text-underline-offset: 0.2rem;
}

.radar-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.radar-detail-grid > div {
  padding: 1rem;
  border-left: 2px solid rgb(2 207 231 / 32%);
  background: rgb(244 247 250 / 3%);
}

.radar-detail-grid h3 {
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.radar-source-block {
  margin-top: 1.6rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--color-line);
}

.radar-sources {
  display: grid;
  gap: 0.8rem;
  padding-left: 1.35rem;
}

.radar-sources li span {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.radar-sources a {
  color: var(--color-light);
  text-decoration: underline;
  text-decoration-color: rgb(2 207 231 / 45%);
  text-underline-offset: 0.22rem;
}

.radar-warning {
  padding: 0.9rem 1rem;
  border: 1px solid rgb(255 120 120 / 40%);
  border-radius: var(--radius-sm);
  color: #ffd1d1;
  background: rgb(166 39 39 / 14%);
}

.radar-pagination {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.radar-pagination a {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.radar-pagination span {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.radar-filter-panel,
.radar-principles {
  padding: clamp(1.2rem, 3vw, 2rem);
}

.radar-filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.radar-filters label {
  display: grid;
  gap: 0.45rem;
  color: var(--color-light-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.radar-filters select,
.radar-reset {
  min-height: 2.85rem;
  border: 1px solid var(--color-line-strong);
  border-radius: 0.7rem;
  color: var(--color-light);
  background: #101a2c;
  font: inherit;
}

.radar-filters select {
  width: 100%;
  padding: 0 0.75rem;
}

.radar-reset {
  padding: 0 0.9rem;
  cursor: pointer;
}

.radar-results-count {
  margin: 1rem 0 0;
  color: var(--color-primary);
  font-weight: 700;
}

.radar-archive-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.radar-archive-card[hidden] {
  display: none;
}

.radar-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-md);
  text-align: center;
}

.radar-method-grid .radar-card h2 {
  font-size: 1.7rem;
}

.radar-method-grid code {
  color: var(--color-primary);
}

@media (width <= 860px) {
  .radar-hero,
  .radar-featured,
  .radar-category-grid,
  .radar-topic-grid,
  .radar-method-grid,
  .radar-archive-results,
  .radar-detail-grid {
    grid-template-columns: 1fr;
  }

  .radar-featured__action {
    border-top: 1px solid var(--color-line);
    border-left: 0;
  }

  .radar-filters,
  .radar-secondary-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (width <= 560px) {
  .radar-layout {
    gap: 3rem;
  }

  .radar-page h1 {
    font-size: clamp(2.75rem, 17vw, 4.2rem);
  }

  .radar-section__heading--split,
  .radar-filters,
  .radar-secondary-nav,
  .radar-pagination {
    grid-template-columns: 1fr;
  }

  .radar-actions .btn {
    width: 100%;
  }

  .radar-toc ol {
    columns: 1;
  }

  .radar-pagination > span {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .radar-page *,
  .radar-page *::before,
  .radar-page *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}