/* ============================================================================
   News page — sticky filter rail + dense card grid + mobile bottom sheet
   ========================================================================== */

.news-page { padding-top: var(--space-20); }

.news-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-8);
  align-items: start;
}

.news-filters {
  position: sticky;
  top: calc(var(--nav-h) + var(--space-4));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-5);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--inner-highlight);
}

.news-filters__label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.news-filters__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.news-filter {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 8px var(--space-3);
  text-align: left;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--fs-body-sm);
  font-weight: 400;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
  min-height: 36px;
}
.news-filter:hover {
  background: var(--color-surface-interactive);
  color: var(--color-text-primary);
}
.news-filter.is-active {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  font-weight: 500;
}

.news-main {
  min-width: 0;
}

.news-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
  min-height: 40px;
}
.news-count {
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}
.news-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.news-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px 8px 4px var(--space-2);
  background: var(--color-surface-interactive);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
}
.news-chip button {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-muted);
  background: transparent;
  font-size: 12px;
  line-height: 1;
}
.news-chip button:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-primary);
}
.news-reset {
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.news-reset:hover {
  color: var(--color-accent);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.news-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--inner-highlight);
  transition: border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
  min-height: 0;
}
.news-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
}
.news-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}
.news-card .source {
  color: var(--color-accent);
  font-weight: 500;
}
.news-card h2 {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 600;
  line-height: 1.35;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--color-text-primary);
}
.news-card .excerpt {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--fs-body-sm);
  font-weight: 400;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .excerpt:empty { display: none; }

.news-empty,
.news-error {
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
  background: var(--color-surface-elevated);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
}

/* ---- Mobile bottom sheet for filters ---- */
.news-filters-trigger {
  display: none;
}

@media (max-width: 900px) {
  .news-layout {
    grid-template-columns: 1fr;
  }
  .news-filters {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    z-index: var(--z-drawer);
    max-height: 75vh;
    overflow-y: auto;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border-bottom: none;
    transform: translateY(100%);
    transition: transform var(--duration-base) var(--ease-out);
    box-shadow: 0 -16px 40px rgba(0, 0, 0, 0.4);
    padding: var(--space-5);
  }
  .news-filters.is-open {
    transform: translateY(0);
  }
  .news-filters[hidden] {
    display: none;
  }
  .news-filters-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(7, 9, 15, 0.65);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: calc(var(--z-drawer) - 1);
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-out);
  }
  .news-filters-backdrop.is-open {
    opacity: 1;
  }
  .news-filters-backdrop[hidden] {
    display: none;
  }
  .news-filters-trigger {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 8px var(--space-4);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--fs-body-sm);
    font-weight: 500;
  }
  .news-filters-trigger__count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
}