/* ============================================
   CollabBoard Portfolio — "Field Survey Terminal"
   ============================================ */

/* --- Custom Properties --- */
:root {
  /* Background layers */
  --bg-page:           #E8E0D0;
  --bg-card:           #F2ECE0;
  --bg-card-alt:       #EDE6D8;
  --bg-card-inset:     #E5DDD0;
  --bg-nav:            #D8D0C0;
  --bg-status-bar:     #D0C8B8;

  /* Text hierarchy */
  --text-primary:      #2C2416;
  --text-secondary:    #5C5040;
  --text-tertiary:     #8C8070;
  --text-faint:        #B0A898;

  /* Borders */
  --border-strong:     #6C6050;
  --border-medium:     #A09080;
  --border-light:      #C8C0B0;
  --border-faint:      #D8D0C4;

  /* Accents */
  --accent-active:     #6B4C2A;
  --accent-green:      #4A7C5C;
  --accent-red:        #8C3C2C;
  --accent-amber:      #8C6C2C;

  /* Fonts */
  --font-mono:         'IBM Plex Mono', 'Courier Prime', 'Courier New', monospace;
  --font-script:       'Playfair Display', 'Libre Baskerville', Georgia, serif;

  /* Spacing */
  --gap-xs:            4px;
  --gap-sm:            8px;
  --gap-md:            16px;
  --gap-lg:            24px;
  --gap-xl:            32px;
  --gap-2xl:           48px;
  --gap-3xl:           64px;

  --card-padding:      24px;
  --card-border:       1px solid var(--border-strong);
  --section-gap:       32px;

  /* Map/illustration overlay */
  --map-land:          #D8D0C0;
  --map-water:         #C8C0B0;
  --map-border:        #A09888;
  --map-marker:        #2C2416;

  /* Transitions */
  --transition-fast:    120ms ease-out;
  --transition-medium:  200ms ease-out;
  --transition-slow:    350ms ease-out;
}

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  background: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent-active);
  outline-offset: 2px;
}

/* --- Layout --- */
body {
  display: flex;
  flex-direction: column;
}

/* --- Nav Bar --- */
.nav-bar {
  display: flex;
  align-items: center;
  height: 48px;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border-strong);
  padding: 0 var(--gap-lg);
  flex-shrink: 0;
  z-index: 100;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
}

.nav-icon {
  font-size: 16px;
  color: var(--text-tertiary);
}

.nav-site-name {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.nav-items {
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
}

.nav-item {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 14px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast);
}

.nav-item:hover {
  color: var(--text-primary);
}

.nav-item.active {
  font-weight: 600;
  color: var(--text-primary);
  border-bottom-color: var(--accent-active);
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--border-medium);
  margin: 0 var(--gap-lg);
}

.nav-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-sm);
}

.nav-cta-arrow {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  font-style: italic;
}

.nav-cta {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-active);
  text-transform: uppercase;
  padding: 4px 12px;
  border: 1px solid var(--accent-active);
  border-radius: 3px;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-cta:hover {
  background: var(--accent-active);
  color: var(--bg-card);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
  flex-shrink: 0;
}

.nav-external {
  border-bottom: none !important;
}

.nav-hamburger {
  display: none;
  font-size: 18px;
  color: var(--text-secondary);
  margin-left: auto;
}

/* --- Stat Strip --- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border-strong);
  flex-shrink: 0;
}

.stat-card {
  background: var(--bg-card);
  padding: var(--card-padding);
  border-right: 1px solid var(--border-medium);
}

.stat-card:last-child {
  border-right: none;
}

.stat-label {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--gap-sm);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  line-height: 1.0;
  margin-bottom: var(--gap-xs);
}

.stat-caption {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* --- Main Content --- */
.main-content {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

/* --- Page --- */
.page {
  display: flex;
  height: 100%;
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.page.active {
  opacity: 1;
  pointer-events: auto;
  position: relative;
}

/* --- Panels --- */
.panel-left {
  flex: 0 0 60%;
  max-width: 60%;
  border-right: 1px solid var(--border-strong);
  overflow: hidden;
}

.panel-right {
  flex: 0 0 40%;
  max-width: 40%;
  overflow-y: auto;
}

/* --- Map Panel (Left) --- */
.map-panel {
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--bg-page);
  /* Subtle dot grid at ~0.05 opacity */
  background-image:
    radial-gradient(circle, rgba(44, 36, 22, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

.map-overlay {
  position: absolute;
  top: var(--gap-md);
  left: var(--gap-md);
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  padding: var(--gap-sm) var(--gap-md);
  z-index: 10;
}

.map-overlay-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}

.map-overlay-meta {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.06em;
}

.map-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gap-2xl);
}

.map-pagination {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--text-tertiary);
  padding: var(--gap-sm);
  border-top: 1px solid var(--border-light);
  background: var(--bg-card);
}

/* --- Crate Map SVG --- */
.crate-map {
  width: 100%;
  max-width: 680px;
  height: auto;
}

.crate-node { cursor: pointer; }
.crate-node rect { transition: fill 120ms ease-out, stroke 120ms ease-out; }
.crate-node:hover rect { fill: #EDE6D8; stroke: var(--accent-active); stroke-width: 1.5; }

/* --- Record Card (Right Panel) --- */
.record-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  margin: var(--gap-md);
}

.record-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: var(--gap-sm) var(--gap-md);
  border-bottom: 1px solid var(--border-light);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
}

.record-header-center {
  text-align: center;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 1.3;
}

.record-identity {
  background: var(--bg-card-alt);
  border: 1px solid var(--border-light);
  margin: var(--gap-md);
  padding: var(--gap-md) var(--gap-lg);
  text-align: center;
}

.record-identity .label {
  text-align: left;
}

.display-script {
  font-family: var(--font-script);
  font-style: italic;
  font-size: clamp(48px, 5vw, 64px);
  color: var(--text-primary);
  line-height: 1.1;
  margin: var(--gap-sm) 0;
}

.record-subtitle {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  text-align: right;
}

/* --- Label (reusable) --- */
.label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* --- Tab Bar --- */
.tab-bar {
  display: flex;
  gap: var(--gap-lg);
  padding: 0 var(--gap-md);
  border-bottom: 1px solid var(--border-light);
}

.tab {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: var(--gap-sm) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-bottom-color var(--transition-medium);
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  font-weight: 600;
  color: var(--text-primary);
  border-bottom-color: var(--accent-active);
}

/* --- Tab Content --- */
.tab-content {
  padding: var(--gap-md);
  opacity: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.tab-content.active {
  opacity: 1;
  height: auto;
  overflow: visible;
  pointer-events: auto;
}

/* --- Section Heading --- */
.section-heading {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  padding-bottom: var(--gap-xs);
  border-bottom: 2px solid var(--border-strong);
  margin-bottom: var(--gap-md);
}

/* --- Body Text --- */
.body-text {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.01em;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--gap-md);
}

.body-text:last-child {
  margin-bottom: 0;
}

/* --- Key-Value List --- */
.kv-list {
  margin-bottom: var(--gap-md);
}

.kv-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--gap-sm);
  padding: 6px 0;
  border-bottom: 1px dotted var(--border-light);
}

.kv-row:last-child {
  border-bottom: none;
}

.kv-row-total {
  border-top: 1px solid var(--border-medium);
  border-bottom: none;
  margin-top: var(--gap-xs);
  padding-top: var(--gap-sm);
}

.kv-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
}

.kv-value {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
  white-space: nowrap;
}

.kv-link {
  text-decoration: underline;
  text-decoration-color: var(--border-medium);
  text-underline-offset: 2px;
}

.kv-link:hover {
  text-decoration-color: var(--accent-active);
}

/* --- Inventory List --- */
.inventory-list {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}

.inventory-item,
.timeline-entry {
  /* no special styling, gap handles spacing */
}

.inventory-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--gap-xs);
}

.inventory-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  text-transform: uppercase;
}

.inventory-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
}

.inventory-desc {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.6;
  border-top: 1px solid var(--border-light);
  padding-top: var(--gap-xs);
}

/* --- Timeline Entries (right panel) --- */
.timeline-entries {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
  padding: var(--gap-md);
}

/* --- Timeline Log Panel (left panel) --- */
.timeline-log-panel {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

.timeline-log-header {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  padding: var(--gap-md) var(--gap-lg);
  border-bottom: 1px solid var(--border-strong);
  background: var(--bg-card);
  flex-shrink: 0;
}

.timeline-log-heading {
  flex: 1;
  min-width: 0;
}

.timeline-log-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}

.timeline-log-meta {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.06em;
}

.timeline-log-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--gap-md) var(--gap-lg);
}

/* Individual log entry */
.tl-log-entry {
  display: flex;
  gap: var(--gap-md);
  padding: var(--gap-md) 0;
  border-bottom: 1px solid var(--border-light);
}

.tl-log-entry:last-child {
  border-bottom: none;
}

.tl-log-marker {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-medium);
  margin-top: 6px;
  position: relative;
}

.tl-log-marker::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 3px;
  width: 1px;
  height: calc(100% + var(--gap-md) + 8px);
  background: var(--border-light);
}

.tl-log-entry:last-child .tl-log-marker::after {
  display: none;
}

.tl-log-content {
  flex: 1;
  min-width: 0;
}

.tl-log-name {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.tl-log-commits {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.tl-log-summary {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: var(--gap-xs);
}

/* Commit sub-entries within a cluster */
.tl-commit-list {
  margin-top: var(--gap-sm);
  padding-left: 2px;
  border-left: 1px solid var(--border-light);
  margin-left: 4px;
}

.tl-commit {
  display: flex;
  align-items: baseline;
  gap: var(--gap-sm);
  padding: 3px 0 3px var(--gap-sm);
  position: relative;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
}

.tl-commit-dot {
  position: absolute;
  left: -5px;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border-medium);
  flex-shrink: 0;
}

.tl-commit-hash {
  font-weight: 500;
  color: var(--accent-active);
  text-decoration: none;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.tl-commit-hash:hover {
  text-decoration: underline;
}

.tl-commit-time {
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.tl-commit-msg {
  color: var(--text-secondary);
  font-weight: 300;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tl-log-empty {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 300;
  font-style: italic;
  color: var(--text-tertiary);
  text-align: center;
  padding: var(--gap-2xl) var(--gap-lg);
  line-height: 1.6;
}

/* --- Decisions --- */
.decisions-list {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}

.decision-key {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--gap-xs);
}

.decision-value {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 300;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-left: var(--gap-md);
  border-left: 2px solid var(--border-light);
}

/* --- Carousel --- */
.carousel {
  flex: 1;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.carousel-track {
  flex: 1;
  height: 100%;
  position: relative;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-slow);
  padding: var(--gap-2xl);
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-arrow {
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-shrink: 0;
  z-index: 5;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.carousel-arrow:hover {
  color: var(--text-primary);
}

/* --- Screenshot Placeholder --- */
.screenshot-placeholder {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 16 / 9;
  background: var(--bg-card-inset);
  border: 1px solid var(--border-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-sm);
}

.placeholder-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

.placeholder-sub {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  text-transform: uppercase;
}

/* --- Video --- */
.video-entry {
  margin-bottom: var(--gap-lg);
}

.video-entry .label {
  margin-bottom: var(--gap-sm);
}

.video-frame {
  border: 1px solid var(--border-strong);
  aspect-ratio: 16 / 9;
  background: var(--bg-card-inset);
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  display: block;
}

.video-frame-large {
  width: 100%;
  max-width: 640px;
}

.demo-video-panel {
  flex-direction: column;
  align-items: center;
  gap: var(--gap-md);
}

/* --- Vintage Screenshot Filter --- */
.vintage-frame {
  border: 1px solid var(--border-strong);
  filter: sepia(12%) contrast(95%) brightness(98%) saturate(85%);
}

/* --- Stat Accent Bar (highlighted stat) --- */
.stat-card-highlighted {
  position: relative;
}

.stat-card-highlighted::after {
  content: '';
  display: block;
  height: 2px;
  background: var(--accent-active);
  margin-top: var(--gap-sm);
}

/* --- Zoom Controls (map panel) --- */
.map-zoom {
  position: absolute;
  bottom: 48px;
  left: var(--gap-md);
  display: flex;
  flex-direction: column;
  z-index: 10;
}

.map-zoom button {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.map-zoom button:first-child {
  border-bottom: none;
}

.map-zoom button:hover {
  color: var(--text-primary);
}

/* --- Status Bar --- */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 32px;
  background: var(--bg-status-bar);
  border-top: 1px solid var(--border-strong);
  padding: 0 var(--gap-lg);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.status-left {
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
}

.status-dot {
  color: var(--accent-green);
  font-size: 8px;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* --- Responsive: 900-1199px --- */
@media (max-width: 1199px) {
  .page.active {
    flex-direction: column;
    overflow-y: auto;
    position: relative;
  }

  .panel-left {
    flex: none;
    max-width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-strong);
    min-height: 400px;
  }

  .panel-right {
    flex: none;
    max-width: 100%;
    overflow-y: visible;
  }
}

/* --- Responsive: <900px --- */
@media (max-width: 899px) {
  .nav-items,
  .nav-divider,
  .nav-right {
    display: none;
  }

  .nav-bar.nav-open .nav-items,
  .nav-bar.nav-open .nav-divider,
  .nav-bar.nav-open .nav-right {
    display: flex;
  }

  .nav-bar.nav-open {
    flex-wrap: wrap;
    height: auto;
    padding-bottom: var(--gap-sm);
  }

  .nav-bar.nav-open .nav-items {
    width: 100%;
    flex-wrap: wrap;
    padding-top: var(--gap-sm);
  }

  .nav-bar.nav-open .nav-right {
    width: 100%;
  }

  .nav-hamburger {
    display: block;
  }

  .stat-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-card:nth-child(2) {
    border-right: none;
  }

  .stat-card:nth-child(1),
  .stat-card:nth-child(2) {
    border-bottom: 1px solid var(--border-medium);
  }

  .panel-left {
    min-height: 300px;
  }

  .stat-number {
    font-size: 28px;
  }

  .display-script {
    font-size: clamp(32px, 5vw, 48px);
  }

  .tab-bar {
    gap: var(--gap-md);
  }

  .tab {
    font-size: 11px;
  }
}

/* --- Transcript Page Panel Override --- */
.page[data-page="transcripts"] .panel-left {
  flex: 0 0 50%;
  max-width: 50%;
}

.page[data-page="transcripts"] .panel-right {
  flex: 0 0 50%;
  max-width: 50%;
}

/* --- Transcript Log Panel (left) --- */
.transcript-log-panel {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

.transcript-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--gap-sm) var(--gap-lg);
}

.tx-section-header {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: var(--gap-sm) var(--gap-md);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-card-alt);
  position: sticky;
  top: 0;
  z-index: 1;
}

.tx-session {
  display: flex;
  gap: var(--gap-sm);
  padding: var(--gap-sm) var(--gap-md);
  border-bottom: 1px solid var(--border-faint);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.tx-session:hover {
  background: var(--bg-card);
}

.tx-session.active {
  background: var(--bg-card);
  border-left: 2px solid var(--accent-active);
}

.tx-session-time {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-tertiary);
  flex-shrink: 0;
  min-width: 48px;
}

.tx-session-body {
  flex: 1;
  min-width: 0;
}

.tx-session-header {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
}

.tx-session-duration {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  background: var(--bg-card-inset);
  border: 1px solid var(--border-faint);
  border-radius: 3px;
  padding: 0 5px;
  line-height: 1.6;
}

.tx-session-agent {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.tx-session-agent.codex {
  color: var(--accent-green);
}

.tx-session-summary {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tx-session-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

/* --- Transcript Viewer (right) --- */
.transcript-viewer {
  padding: var(--gap-md);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
}

.tx-empty-state {
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
  font-style: italic;
  letter-spacing: 0.08em;
  padding: var(--gap-3xl) var(--gap-lg);
}

.tx-meta-block {
  background: var(--bg-card-alt);
  border: 1px solid var(--border-light);
  padding: var(--gap-sm) var(--gap-md);
  margin-bottom: var(--gap-md);
  font-size: 11px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.tx-meta-block .tx-meta-label {
  color: var(--text-faint);
  margin-right: var(--gap-xs);
}

.tx-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tx-line {
  padding: var(--gap-xs) var(--gap-sm);
  border-radius: 2px;
  word-break: break-word;
  white-space: pre-wrap;
}

.tx-line-user {
  background: rgba(107, 76, 42, 0.08);
  color: var(--text-primary);
  font-weight: 400;
  border-left: 2px solid var(--accent-active);
  padding-left: var(--gap-sm);
}

.tx-line-assistant {
  color: var(--text-secondary);
  font-weight: 300;
}

.tx-line-tool {
  font-size: 11px;
  color: var(--text-tertiary);
  padding-left: var(--gap-md);
}

.tx-line-tool-fail {
  font-size: 11px;
  color: var(--accent-red);
  padding-left: var(--gap-md);
}

.tx-line-meta {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

.tx-line-summary {
  font-size: 10px;
  color: var(--text-faint);
  border-top: 1px solid var(--border-faint);
  margin-top: var(--gap-sm);
  padding-top: var(--gap-sm);
}

/* --- Transcript Markdown Content --- */
.tx-line code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg-card-inset);
  border: 1px solid var(--border-faint);
  padding: 1px 4px;
  border-radius: 2px;
}

.tx-line pre {
  background: var(--bg-card-inset);
  border: 1px solid var(--border-light);
  padding: var(--gap-sm);
  margin: var(--gap-xs) 0;
  overflow-x: auto;
  font-size: 11px;
  line-height: 1.5;
}

.tx-line pre code {
  background: none;
  border: none;
  padding: 0;
}

.tx-line p {
  margin: 0 0 var(--gap-xs) 0;
}

.tx-line p:last-child {
  margin-bottom: 0;
}

.tx-line strong {
  font-weight: 600;
  color: var(--text-primary);
}

.tx-line a {
  color: var(--accent-active);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.tx-line ul, .tx-line ol {
  padding-left: var(--gap-md);
  margin: var(--gap-xs) 0;
}

.tx-line table {
  border-collapse: collapse;
  font-size: 11px;
  margin: var(--gap-xs) 0;
}

.tx-line th, .tx-line td {
  border: 1px solid var(--border-light);
  padding: 2px var(--gap-sm);
}

.tx-line th {
  background: var(--bg-card-alt);
  font-weight: 600;
}

.tx-line blockquote {
  border-left: 2px solid var(--border-medium);
  padding-left: var(--gap-sm);
  color: var(--text-tertiary);
  margin: var(--gap-xs) 0;
}

/* --- Visuals Page --- */
.visuals-panel {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
}

.visuals-gallery {
  flex: 1;
  overflow-y: auto;
  padding: var(--gap-lg);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gap-md);
  align-content: start;
}

.vis-item {
  border: 1px solid var(--border-medium);
  background: var(--bg-card);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.vis-item:hover {
  border-color: var(--accent-active);
}

.vis-item img {
  width: 100%;
  display: block;
  filter: sepia(8%) contrast(96%) brightness(99%);
}

.vis-item video {
  width: 100%;
  display: block;
}

.vis-item-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  padding: var(--gap-xs) var(--gap-sm);
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.vis-item-type {
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.vis-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
  font-style: italic;
  letter-spacing: 0.08em;
  padding: var(--gap-3xl) var(--gap-lg);
}

/* Lightbox overlay */
.vis-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(44, 36, 22, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.vis-lightbox img,
.vis-lightbox video {
  max-width: 90vw;
  max-height: 90vh;
  border: 2px solid var(--border-strong);
  background: var(--bg-card);
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .carousel-slide,
  .tab-content,
  .page {
    transition: none;
  }
}