.blog-shell {
  display: grid;
  grid-template-columns: minmax(148px, 200px) minmax(0, 1fr);
  gap: 1rem 1.35rem;
  align-items: start;
  max-width: min(96vw, 1680px);
  margin: 0 auto;
  width: 100%;
}

.blog-shell-top {
  grid-column: 1 / -1;
}

.blog-overview-cards {
  margin-top: 1.25rem;
}

.blog-overview-cards .blog-nav-btn {
  width: 100%;
  text-align: left;
}

.blog-section-nav {
  position: sticky;
  top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.65rem 0.5rem;
  border: 1px solid rgba(186, 214, 238, 0.16);
  background: rgba(6, 10, 16, 0.88);
  border-radius: 4px;
  z-index: 20;
}

.blog-nav-btn {
  font: inherit;
  text-align: left;
  cursor: pointer;
  padding: 0.45rem 0.55rem;
  border: 1px solid transparent;
  border-radius: 3px;
  color: #b8c8dc;
  background: transparent;
}

.blog-nav-btn:hover {
  border-color: rgba(186, 214, 238, 0.22);
  color: #e8f0ff;
}

.blog-nav-btn.is-active {
  border-color: rgba(122, 230, 168, 0.45);
  color: #d8ffe8;
  background: rgba(122, 230, 168, 0.08);
}

.blog-shell-panels {
  min-width: 0;
}

.blog-shell-panels[data-view="split"] {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.15rem;
  align-items: start;
}

.blog-shell-panels[data-view="split"] .blog-panel {
  display: none;
  max-height: calc(100vh - 5rem);
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 0.35rem;
  border: 1px solid rgba(186, 214, 238, 0.12);
  border-radius: 4px;
  padding: 0.65rem 0.75rem 1rem;
  background: rgba(4, 8, 14, 0.45);
}

.blog-shell-panels[data-view="split"] .blog-panel.is-split-left,
.blog-shell-panels[data-view="split"] .blog-panel.is-split-right {
  display: block;
}

.blog-shell-panels[data-view="split"] .blog-panel.is-split-left::before,
.blog-shell-panels[data-view="split"] .blog-panel.is-split-right::before {
  content: attr(data-panel);
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8aa8c4;
  margin-bottom: 0.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(186, 214, 238, 0.12);
}

.blog-panel {
  display: none;
}

.blog-panel.is-active {
  display: block;
}

/* Single-panel mode: page scrolls on window; split mode scrolls inside each column */
.blog-shell-panels[data-view="single"] .blog-panel.is-active {
  overflow: visible;
  max-height: none;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

.blog-split-controls {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(186, 214, 238, 0.14);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.blog-split-label {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.75;
  margin-right: 0.35rem;
}

.blog-view-mode {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.blog-view-btn {
  font: inherit;
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  border: 1px solid rgba(186, 214, 238, 0.2);
  border-radius: 2px;
  color: #b8c8dc;
  background: rgba(0, 0, 0, 0.35);
}

.blog-view-btn.is-active {
  border-color: rgba(122, 230, 168, 0.45);
  color: #d8ffe8;
}

.blog-split-pickers {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.blog-split-pick {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.82rem;
}

.blog-split-select {
  font: inherit;
  padding: 0.25rem 0.35rem;
  border: 1px solid rgba(186, 214, 238, 0.25);
  background: rgba(0, 0, 0, 0.45);
  color: inherit;
  border-radius: 2px;
}

.blog-split-presets {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.blog-split-preset {
  font: inherit;
  cursor: pointer;
  text-align: left;
  padding: 0.3rem 0.45rem;
  border: 1px solid rgba(118, 200, 255, 0.22);
  border-radius: 2px;
  color: #c8d8ea;
  background: rgba(0, 0, 0, 0.35);
}

.blog-split-preset:hover {
  border-color: rgba(122, 230, 168, 0.4);
}

.blog-nav-btn.is-split-slot {
  border-color: rgba(118, 200, 255, 0.35);
  color: #d8ecff;
}

body.blog-shell-split-on .blog-section-nav {
  max-height: calc(100vh - 1rem);
  overflow-y: auto;
}

.blog-panel > section,
.blog-panel > .devlog-train {
  margin-top: 0;
}

.blog-panel[data-panel="devlog"] .devlog-train + .devlog-train {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(186, 214, 238, 0.1);
}

.blog-panel[data-panel="media"] {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.blog-panel[data-panel="media"].is-active {
  display: grid;
}

.blog-panel[data-panel="media"] > section {
  min-width: 0;
}

.devlog-chapter.is-collapsed .devlog-commit-list .devlog-entry:nth-child(n+3) {
  display: none;
}

.devlog-chapter-toggle {
  font: inherit;
  cursor: pointer;
  margin: 0 0 0.5rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid rgba(186, 214, 238, 0.2);
  border-radius: 2px;
  color: #9eb8d4;
  background: rgba(0, 0, 0, 0.35);
}

.range-explorer {
  margin: 0 0 1.25rem;
  padding: 0.75rem 0.85rem 0.9rem;
  border: 1px solid rgba(118, 200, 255, 0.22);
  background: rgba(4, 8, 14, 0.72);
  border-radius: 4px;
}

.range-explorer-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.range-explorer-head h3 {
  margin: 0;
  font-size: 0.95rem;
  color: #b8d4f0;
}

.range-hint {
  margin: 0.45rem 0 0;
  font-size: 0.82rem;
  opacity: 0.78;
}

.range-chart {
  width: 100%;
  height: 220px;
}

.range-bracket-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.65rem;
  align-items: center;
  margin-top: 0.55rem;
  font-size: 0.82rem;
}

.range-bracket-controls label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.range-bracket-controls input[type="date"] {
  font: inherit;
  padding: 0.15rem 0.35rem;
  border: 1px solid rgba(186, 214, 238, 0.25);
  background: rgba(0, 0, 0, 0.45);
  color: inherit;
  border-radius: 2px;
}

.range-bracket-controls button {
  font: inherit;
  cursor: pointer;
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(122, 230, 168, 0.35);
  border-radius: 2px;
  color: #c8ffe0;
  background: rgba(122, 230, 168, 0.1);
}

.range-filter-active .timeline-node.range-out,
.range-filter-active .devlog-entry.range-out {
  opacity: 0.22;
  pointer-events: none;
}

.range-filter-active .timeline-node.range-in,
.range-filter-active .devlog-entry.range-in {
  opacity: 1;
}

.timeline-node.range-focus-ping,
.devlog-entry.range-focus-ping {
  outline: 1px solid rgba(122, 230, 168, 0.65);
  outline-offset: 2px;
}

@media (max-width: 960px) {
  .blog-shell {
    grid-template-columns: 1fr;
  }

  .blog-section-nav {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .blog-panel[data-panel="media"].is-active {
    grid-template-columns: 1fr;
  }

  .blog-shell-panels[data-view="split"] {
    grid-template-columns: 1fr;
  }

  .blog-shell-panels[data-view="split"] .blog-panel {
    max-height: none;
  }
}

@media (max-width: 640px) {
  .range-chart {
    height: 180px;
  }
}