.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.chip--filter {
  border: 1px solid var(--edge);
  background: var(--glass-2);
  color: var(--script-dim);
  border-radius: var(--r-pill);
  padding: 8px 18px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: filter 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.chip--filter:hover {
  filter: brightness(1.15);
}

.chip--filter.is-active {
  color: var(--ink-void);
  background: linear-gradient(135deg, var(--aurora), var(--aurora-deep));
  border-color: transparent;
  font-weight: 600;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  border-radius: var(--r-md);
  background: var(--glass);
  border: 1px solid var(--edge);
  backdrop-filter: blur(var(--blur));
  text-decoration: none;
  color: var(--script);
  min-width: 0;
  transition: filter 0.15s ease, border-color 0.15s ease;
}

.post-card:hover {
  filter: brightness(1.1);
  border-color: var(--edge-glow);
}

.post-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--script-dim);
}

.post-line time {
  font-family: var(--font-mono);
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: var(--r-pill);
  background: var(--aurora-wash);
  color: var(--aurora);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

.post-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.4;
  margin: 0;
}

.post-brief {
  color: var(--script-dim);
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-more {
  margin-top: auto;
  color: var(--aurora);
  font-size: 0.88rem;
  font-weight: 600;
}

/* breadcrumb */
.crumb-trail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--script-dim);
  margin: 22px 0 20px;
}

.crumb-trail a {
  color: var(--script-dim);
  text-decoration: none;
}

.crumb-trail a:hover {
  color: var(--aurora);
}

.crumb-trail > span:last-child {
  color: var(--script);
}

/* article hero */
.post-hero {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.post-hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--script-dim);
}

.post-hero-meta time {
  font-family: var(--font-mono);
}

.post-hero h1 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.3;
  margin: 0;
}

.post-hero .lede {
  font-size: 1.05rem;
  color: var(--script-dim);
  max-width: 760px;
}

/* article body */
.post-body {
  max-width: 760px;
}

.post-body h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 44px 0 18px;
  color: var(--script);
}

.post-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 32px 0 14px;
  color: var(--script);
}

.post-body p {
  line-height: 1.9;
  color: var(--script);
  margin: 0 0 18px;
}

.post-body ul,
.post-body ol {
  margin: 0 0 18px;
  padding-left: 1.4em;
  line-height: 1.85;
  color: var(--script);
}

.post-body li {
  margin-bottom: 8px;
}

.post-body pre {
  background: var(--ink-panel);
  border: 1px solid var(--edge);
  border-radius: var(--r-sm);
  padding: 18px;
  overflow-x: auto;
  margin: 0 0 20px;
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--aurora-pale);
}

.post-body p code {
  background: var(--glass-2);
  padding: 2px 6px;
  border-radius: var(--r-xs);
}

.post-body blockquote {
  border-left: 3px solid var(--aurora);
  padding: 8px 18px;
  margin: 0 0 20px;
  color: var(--script-dim);
  background: var(--glass-2);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

/* endcap download card */
.endcap {
  margin-top: 60px;
  padding: 36px;
  border-radius: var(--r-lg);
  background: var(--glass-deep);
  border: 1px solid var(--edge-glow-soft);
  backdrop-filter: blur(var(--blur));
  max-width: 760px;
}

.endcap h2 {
  font-size: 1.6rem;
  font-weight: 900;
  margin: 12px 0 10px;
}

.endcap p {
  color: var(--script-dim);
  margin: 0 0 20px;
}

.endcap-acts {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* related posts */
.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.rel-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border-radius: var(--r-sm);
  background: var(--glass-2);
  border: 1px solid var(--edge);
  text-decoration: none;
  color: var(--script);
  transition: filter 0.15s ease;
}

.rel-card:hover {
  filter: brightness(1.12);
}

.rel-card h4 {
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.4;
}

/* prev/next nav */
.nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 18px;
  max-width: 760px;
}

.nav-card {
  padding: 20px;
  border-radius: var(--r-sm);
  background: var(--glass);
  border: 1px solid var(--edge);
  text-decoration: none;
  color: var(--script);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: filter 0.15s ease;
  min-width: 0;
}

.nav-card:hover {
  filter: brightness(1.12);
}

.nav-card--next {
  text-align: right;
  align-items: flex-end;
}

.nav-card-dir {
  font-size: 0.8rem;
  color: var(--aurora);
  letter-spacing: 0.05em;
}

.nav-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.4;
}

@media (max-width: 560px) {
  .nav-grid {
    grid-template-columns: 1fr;
  }
  .nav-card--next {
    text-align: left;
    align-items: flex-start;
  }
}

/* download modal */
.dl-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(14, 11, 30, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  transition: opacity 0.2s ease;
  padding: 20px;
}

.dl-modal-overlay.is-open {
  opacity: 1;
}

.dl-modal-panel {
  position: relative;
  max-width: 420px;
  width: 100%;
  padding: 36px 30px;
  border-radius: var(--r-md);
  background: var(--ink-panel-2);
  border: 1px solid var(--edge-glow);
  backdrop-filter: blur(var(--blur));
  transform: translateY(8px) scale(0.98);
  transition: transform 0.2s ease;
}

.dl-modal-overlay.is-open .dl-modal-panel {
  transform: translateY(0) scale(1);
}

.dl-modal-panel h3 {
  font-size: 1.3rem;
  font-weight: 900;
  margin: 0 0 12px;
  color: var(--script);
}

.dl-modal-panel p {
  color: var(--script-dim);
  line-height: 1.7;
  margin: 0 0 24px;
}

.dl-modal-acts {
  display: flex;
  justify-content: flex-end;
}

.dl-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--edge);
  background: var(--glass-2);
  color: var(--script);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: filter 0.15s ease;
}

.dl-modal-close:hover {
  filter: brightness(1.2);
}