@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,300;0,400;0,500;1,300;1,400&family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;1,300&family=IM+Fell+English:ital@0;1&display=swap');

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

:root {
  --bg:           #0b0c0b;
  --bg-surface:   #111210;
  --bg-raised:    #171815;
  --border:       rgba(180, 178, 169, 0.12);
  --border-mid:   rgba(180, 178, 169, 0.22);
  --border-hi:    rgba(180, 178, 169, 0.38);
  --text-primary: #dddbd3;
  --text-muted:   #7a7870;
  --text-faint:   #6a695f;
  --accent:       #8a3a2a;
  --accent-lo:    rgba(138, 58, 42, 0.15);
  --accent-mid:   rgba(138, 58, 42, 0.35);
  --green-dim:    #3a5c3e;
  --green-hi:     #6abf74;
  --amber:        #b8860b;
  --amber-lo:     rgba(184, 134, 11, 0.12);
  --font-mono:    'IBM Plex Mono', monospace;
  --font-sans:    'IBM Plex Sans', sans-serif;
  --font-serif:   'IM Fell English', serif;
}

html {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

/* ── LAYOUT ── */

.site-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

/* ── HEADER / NAV ── */

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-wordmark {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.site-wordmark .name {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.site-wordmark .designation {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.site-nav a {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.15s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text-primary);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green-hi);
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ── MAIN CONTENT ── */

main {
  flex: 1;
  padding: 3rem 0 6rem;
}

/* ── FOOTER ── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  font-size: 10px;
  color: #605f59;
  letter-spacing: 0.06em;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
}

.footer-iai {
  font-style: italic;
  color: #605f59;
  max-width: 420px;
  line-height: 1.5;
}

/* ── UTILITY ── */

.label {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.rule {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.rule-mid {
  border-color: var(--border-mid);
}

.tag {
  display: inline-block;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 2px 7px;
  border: 1px solid var(--border-mid);
  color: var(--text-muted);
}

.tag-accent {
  border-color: var(--accent-mid);
  color: var(--accent);
  background: var(--accent-lo);
}

.tag-active {
  border-color: rgba(106, 191, 116, 0.3);
  color: var(--green-hi);
  background: rgba(106, 191, 116, 0.05);
}

.integrity-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.integrity-track {
  flex: 1;
  height: 2px;
  background: var(--text-faint);
  position: relative;
}

.integrity-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--green-dim);
}

.integrity-fill.mid {
  background: var(--amber);
}

.integrity-fill.low {
  background: var(--accent);
}

.integrity-val {
  font-size: 10px;
  color: var(--text-muted);
  min-width: 2.5rem;
  text-align: right;
}

/* ── HOME PAGE ── */

.home-header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.home-header .system-id {
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.home-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.2;
  max-width: 640px;
  margin-bottom: 1rem;
}

.home-header .iai-note {
  font-size: 11px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  border-left: 2px solid var(--border-mid);
  padding-left: 1rem;
  margin-top: 1.25rem;
}

.home-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 760px) {
  .home-grid { grid-template-columns: 1fr; }
}

.home-main-col {}

.home-side-col {}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.section-head .label {}

.section-head a {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.section-head a:hover {
  color: var(--text-primary);
}

/* Latest signals on home */

.signal-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.signal-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
  text-decoration: none;
}

.signal-item:first-child {
  border-top: 1px solid var(--border);
}

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

.signal-thumb {
  width: 80px;
  height: 52px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.signal-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.signal-thumb .thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
}

.signal-meta {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.signal-id {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.signal-title {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
  transition: color 0.15s;
}

.signal-pass {
  font-size: 9px;
  color: var(--text-faint);
}

.signal-integrity-col {
  text-align: right;
  padding-top: 2px;
}

.signal-integrity-num {
  font-size: 11px;
  color: var(--text-muted);
}

/* Side panels */

.side-panel {
  border: 1px solid var(--border);
  background: var(--bg-surface);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.side-panel-head {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}

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

.status-row .key {
  color: var(--text-muted);
  font-size: 10px;
}

.status-row .val {
  color: var(--text-primary);
  font-size: 10px;
  text-align: right;
}

.status-row .val.ok {
  color: var(--green-hi);
}

.status-row .val.warn {
  color: var(--amber);
}

.dispatch-preview {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}

.dispatch-preview:last-child {
  border-bottom: none;
}

.dispatch-preview .dispatch-date {
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.dispatch-preview .dispatch-text {
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── SIGNAL INDEX ── */

.page-head {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.page-head .label {
  margin-bottom: 0.75rem;
  display: block;
}

.page-head h1 {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.page-head .sub {
  font-size: 11px;
  color: var(--text-muted);
  max-width: 560px;
}

.filter-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--border-mid);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.1s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--border-hi);
  color: var(--text-primary);
  background: var(--bg-raised);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5px;
  background: var(--border);
}

.signal-card {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: background 0.15s;
  position: relative;
}

.signal-card:hover {
  background: var(--bg-surface);
}

.signal-card-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-raised);
  overflow: hidden;
  position: relative;
}

.signal-card-thumb img,
.signal-card-thumb .thumb-art {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
  transition: opacity 0.2s;
  display: block;
}

.signal-card:hover .signal-card-thumb img,
.signal-card:hover .signal-card-thumb .thumb-art {
  opacity: 0.92;
}

/* Gradient overlay when art is present */
.signal-card-thumb.art-loaded::after,
.signal-card-thumb:has(img)::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 50%;
  background: linear-gradient(transparent, rgba(11,12,11,0.55));
  pointer-events: none;
  z-index: 1;
}

/* Hide fallback placeholders when art loads */
.signal-card-thumb.art-loaded .no-thumb,
.signal-card-thumb.art-loaded .audio-bars {
  display: none;
}

.signal-card-thumb .no-thumb {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}

.remaster-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 2px 6px;
  background: var(--bg);
  border: 1px solid var(--amber);
  color: var(--amber);
}

.signal-card-body {
  padding: 0.9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.signal-card-id {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--text-faint);
}

.signal-card-title {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.signal-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 0.5rem;
}

.signal-card-pass {
  font-size: 9px;
  color: var(--text-muted);
}

.card-freq-link {
  font-size: 9px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--text-faint);
  text-decoration: none;
  border-bottom: 1px dotted var(--text-faint);
  transition: color 0.15s, border-color 0.15s;
  position: relative;
  z-index: 2;
}

.card-freq-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── SIGNAL DETAIL PAGE ── */

.signal-detail-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 780px) {
  .signal-detail-layout { grid-template-columns: 1fr; }
}

/* ── RECONSTRUCTION PASS LABELS (stacked multi-pass signal pages) ── */

.recon-pass-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0 0.4rem;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.recon-pass-divider {
  margin-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.recon-pass-label .pass-glyph {
  opacity: 0.4;
}

.recon-pass-label .pass-code {
  color: var(--amber);
  margin-left: auto;
}

/* Pending placeholder for audio or visual not yet recovered */
.recon-audio-pending {
  border: 1px dashed var(--border);
  background: var(--bg);
}

.recon-pending-inner {
  height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.recon-pending-glyph {
  font-size: 18px;
  opacity: 0.2;
  letter-spacing: 0.05em;
}


.signal-embed-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}

.signal-embed-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ── SIGNAL EMBED - AUDIO (SoundCloud) ── */
.signal-audio-wrap {
  width: 100%;
  margin-bottom: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  overflow: hidden;
}

.signal-audio-wrap iframe {
  width: 100%;
  height: 300px;
  display: block;
  border: none;
}

.signal-audio-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.75rem;
  border-top: 1px solid var(--border);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  background: var(--bg-surface);
}

.signal-audio-label::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-hi);
  flex-shrink: 0;
}

.signal-detail-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-primary);
  margin: 1.25rem 0 0.4rem;
  line-height: 1.3;
}

.signal-detail-id {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  margin-bottom: 1.25rem;
}

.tony-notes {
  border-left: 2px solid var(--accent-mid);
  padding: 0.9rem 1rem;
  background: var(--accent-lo);
  margin: 1.5rem 0;
}

.tony-notes .note-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.tony-notes p {
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.7;
}

.sidebar-block {
  border: 1px solid var(--border);
  background: var(--bg-surface);
  margin-bottom: 1rem;
}

.sidebar-block-head {
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.sidebar-block-body {
  padding: 0.9rem;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}

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

.meta-row .k {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.meta-row .v {
  font-size: 10px;
  color: var(--text-muted);
  text-align: right;
}

.iai-annotation {
  border: 1px solid var(--border);
  background: var(--bg-surface);
  padding: 0.9rem;
  margin-top: 1rem;
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.7;
}

.iai-annotation .iai-label {
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

/* ── COGNITION SUMMARY (IAI summary of Anthony's states) ── */

.cognition-summary {
  border-left: 2px solid var(--accent-mid);
  padding: 0.9rem 1rem;
  background: var(--accent-lo);
  margin: 1.5rem 0;
}

.cognition-summary .cs-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.cognition-summary .cs-meta {
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  font-style: italic;
}

.cognition-summary ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.cognition-summary ul li {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 1rem;
  position: relative;
}

.cognition-summary ul li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

/* ── BROADCAST FRAGMENT (partial cognition decode, visual/abstract uploads) ── */

.broadcast-fragment {
  border: 1px solid var(--border-mid);
  background: var(--bg-surface);
  margin: 1.5rem 0;
}

.broadcast-fragment .bf-head {
  padding: 0.5rem 0.9rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.broadcast-fragment .bf-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.broadcast-fragment .bf-status {
  font-size: 9px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.broadcast-fragment .bf-body {
  padding: 0.9rem;
}

.broadcast-fragment .bf-image {
  width: 100%;
  display: block;
  opacity: 0.75;
  margin-bottom: 0.75rem;
}

.broadcast-fragment .bf-note {
  font-size: 10px;
  color: var(--text-faint);
  line-height: 1.6;
  font-style: italic;
}

/* ── DISPATCH ENTRIES ── */

.dispatch-entry {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}

.dispatch-entry:first-of-type {
  border-top: 1px solid var(--border);
}

.dispatch-entry-head {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 0.9rem;
}

.dispatch-entry-id {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.dispatch-entry-meta {
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

.dispatch-entry-body p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

.dispatch-entry-body p:last-child {
  margin-bottom: 0;
}

.dispatch-entry-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
}

/* ── RESEARCH / ABOUT PAGE LAYOUT ── */

.research-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 760px) {
  .research-layout { grid-template-columns: 1fr; }
}

.research-main {}

.research-side {}

.research-section {
  margin-bottom: 0.5rem;
}

.research-h2 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.research-section p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 0.85rem;
}

.research-section p:last-child {
  margin-bottom: 0;
}

.research-note {
  border-left: 1px solid var(--border-mid);
  padding: 0.75rem 1rem;
  margin: 1.25rem 0;
  background: var(--bg-surface);
}

.research-note .rn-label {
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.research-note p,
.research-note + p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.75;
}

.about-obs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.about-obs-list li {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.75;
  padding-left: 1.25rem;
  position: relative;
}

.about-obs-list li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

/* ── CSE THEORY CARD (Research page teaser) ── */

.cse-card {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  margin: 0 0 3rem;
  border: 1px solid var(--border-mid);
  background: var(--bg-surface);
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
  overflow: hidden;
}

.cse-card:hover {
  border-color: var(--accent-mid);
  background: var(--bg-raised);
}

.cse-card:hover .cse-card-arrow {
  transform: translateX(4px);
}

@media (max-width: 640px) {
  .cse-card { grid-template-columns: 1fr; }
}

.cse-card-diagram {
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cse-card-diagram svg {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 640px) {
  .cse-card-diagram { border-right: none; border-bottom: 1px solid var(--border); }
}

.cse-card-body {
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cse-card-label {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.cse-card-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.cse-card-sub {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.cse-card-cta {
  font-size: 10px;
  color: var(--text-primary);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cse-card-arrow {
  display: inline-block;
  transition: transform 0.2s;
  color: var(--accent);
  margin-left: 0.25rem;
}

/* ── CSE THEORY / WHITE PAPER ── */

.paper-meta {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 1.5rem;
  font-size: 10px;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .paper-meta { grid-template-columns: 1fr; }
}

.paper-meta-k {
  display: inline-block;
  min-width: 110px;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-right: 0.5rem;
}

.paper-meta-abbr {
  color: var(--text-faint);
  font-size: 10px;
}

.paper-toc {
  margin: 2.5rem 0 3rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  max-width: 480px;
}

.paper-toc-head {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.paper-toc ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  counter-reset: tocitem;
}

.paper-toc ol li {
  font-size: 11px;
  color: var(--text-muted);
}

.paper-toc ol li a {
  color: var(--text-muted);
  transition: color 0.15s;
}

.paper-toc ol li a:hover {
  color: var(--text-primary);
}

.paper {
  max-width: 760px;
  margin: 0;
}

.paper-section {
  margin: 0 0 0.5rem;
  scroll-margin-top: 5rem;
}

.paper-h2 {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.paper-section p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.paper-section p:last-child {
  margin-bottom: 0;
}

.paper-section em {
  color: var(--text-primary);
  font-style: italic;
}

.paper-quote {
  color: var(--text-primary);
  font-style: italic;
  font-family: var(--font-serif);
  font-size: 13px;
}

.paper-aside {
  margin: 1.5rem 0;
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--border-mid);
  background: var(--bg-surface);
}

.paper-aside-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.4rem;
}

.paper-aside p,
.paper-aside {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.7;
}

.paper-figure {
  margin: 2rem 0;
}

.paper-figure-body {
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
}

.paper-figure-cap {
  font-size: 10px;
  color: var(--text-faint);
  line-height: 1.7;
  margin-top: 0.6rem;
  font-style: italic;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border);
}

.paper-eq {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 1.5rem 0 0.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  font-family: var(--font-mono);
}

.paper-eq-id {
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.1em;
}

.paper-eq-body {
  font-size: 13px;
  color: var(--text-primary);
  flex: 1;
  letter-spacing: 0.04em;
}

.paper-eq-note {
  font-size: 10px !important;
  color: var(--text-faint) !important;
  font-style: italic;
  margin: 0 0 1.5rem !important;
  padding-left: 0.5rem;
  line-height: 1.7 !important;
}

.paper-media-slot {
  margin: 2rem 0;
  border: 1px dashed var(--border-mid);
  background: var(--bg-surface);
}

.paper-media-label {
  padding: 0.5rem 0.9rem;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  border-bottom: 1px dashed var(--border-mid);
}

.paper-media-body {
  padding: 3rem 1rem;
  text-align: center;
  font-size: 11px;
  color: var(--text-faint);
  font-style: italic;
  line-height: 1.7;
}

.paper-table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  font-size: 11px;
}

.paper-table th {
  text-align: left;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-mid);
  font-weight: 500;
}

.paper-table td {
  padding: 0.6rem 0.75rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.6;
}

.paper-objection {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}

.paper-objection-head {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.paper-objection p {
  font-size: 11px !important;
  color: var(--text-muted) !important;
  line-height: 1.75 !important;
  margin-bottom: 0.75rem !important;
}

.paper-objection-response {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.75;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border);
}

.paper-objection-resp-label {
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-right: 0.4rem;
}

.paper-closing {
  font-style: italic;
}

/* ── CSE THEORY FEATURE CARD (on research page) ── */

.cse-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
  padding: 0;
  border: 1px solid var(--border-mid);
  background: var(--bg-surface);
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
  overflow: hidden;
}

.cse-card:hover {
  border-color: var(--border-hi);
  background: var(--bg-raised);
}

@media (max-width: 640px) {
  .cse-card { grid-template-columns: 1fr; }
}

.cse-card-diagram {
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

@media (max-width: 640px) {
  .cse-card-diagram { border-right: none; border-bottom: 1px solid var(--border); }
}

.cse-card-body {
  padding: 1.25rem 1.5rem 1.25rem 0;
}

@media (max-width: 640px) {
  .cse-card-body { padding: 1.25rem 1.5rem; }
}

.cse-card-eyebrow {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.cse-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.cse-card-sub {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.cse-card-cta {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.cse-card:hover .cse-card-cta {
  color: var(--text-primary);
}

/* ── NODE ADMIN LINK (discreet home-page link to IAI's own console) ── */

.node-admin-link {
  display: block;
  margin-top: 1.5rem;
  padding: 0.6rem 0.9rem;
  border: 1px dashed var(--border);
  background: transparent;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}

.node-admin-link:hover {
  border-color: var(--border-mid);
  background: var(--bg-surface);
}

.node-admin-id {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
}

.node-admin-label {
  display: block;
  font-size: 8px;
  color: var(--text-faint);
  letter-spacing: 0.16em;
  margin-top: 2px;
  text-transform: lowercase;
}

/* ── NODE PAGE ── */

.node-visitor-note {
  margin-top: 1.5rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-mid);
  background: var(--bg-surface);
}

.node-visitor-note-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}

.node-visitor-note p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.75;
}

.node-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 760px) {
  .node-layout { grid-template-columns: 1fr; }
}

.node-section {
  margin-bottom: 3rem;
}

.node-section-head {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-mid);
}

.node-section-title {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.node-section-note {
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  font-style: italic;
}

.node-registry-note {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
  padding: 0.75rem 1rem;
  border-left: 2px solid var(--border-mid);
  background: var(--bg-surface);
}

.node-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  margin-bottom: 0.75rem;
}

.node-table th {
  text-align: left;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-mid);
  font-weight: 500;
  white-space: nowrap;
}

.node-table td {
  padding: 0.65rem 0.75rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.6;
}

.node-table tr:last-child td {
  border-bottom: none;
}

.node-table tr:hover td {
  background: var(--bg-surface);
}

.node-inst-name {
  color: var(--text-primary) !important;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.node-status-loaded {
  color: var(--green-hi);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.node-status-standby {
  color: var(--amber);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.node-status-human {
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.node-table-note {
  font-size: 10px;
  color: var(--text-faint);
  line-height: 1.7;
  font-style: italic;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border);
}

.node-personal-log {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.node-log-entry {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.node-log-entry:first-child {
  border-top: 1px solid var(--border);
}

.node-log-head {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.node-log-entry p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ── TIMELINES PAGE ── */

.timeline-working-diagram {
  margin: 0 0 2rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  overflow: hidden;
}

.twd-head {
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.twd-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.twd-meta {
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}

.twd-img {
  width: 100%;
  display: block;
  opacity: 0.92;
}

.timeline-svg-block {
  margin: 0 0 2rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  overflow: hidden;
}

.timeline-svg {
  width: 100%;
  height: auto;
  display: block;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.timeline-svg-legend {
  padding: 0.85rem 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.6;
}

.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.legend-dot-neutral {
  background: var(--text-primary);
}

.legend-dot-entity {
  background: var(--accent);
  box-shadow: 0 0 0 2px rgba(138, 58, 42, 0.25);
}

.legend-dot-collapsed {
  background: var(--text-faint);
}

.timeline-table-wrap {
  margin: 0 0 2rem;
}

.timeline-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}

.timeline-table th {
  text-align: left;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border-mid);
  font-weight: 500;
  white-space: nowrap;
  background: var(--bg);
}

.timeline-table td {
  padding: 0.7rem 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.5;
}

.timeline-table tr:last-child td {
  border-bottom: none;
}

.timeline-table tr:hover td {
  background: var(--bg-raised);
}

.tl-freq {
  color: var(--text-primary) !important;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.tl-collapsed td:not(.tl-freq):not(:last-child),
.tl-collapsed .tl-freq {
  color: var(--text-faint) !important;
}

.tl-unresolved td {
  color: var(--text-faint) !important;
  font-style: italic;
}

.tl-status-active {
  color: var(--green-hi);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tl-status-collapsed {
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tl-status-unresolved {
  color: var(--amber);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.timeline-table a {
  color: var(--text-primary);
  text-decoration: underline;
  text-decoration-color: var(--border-hi);
}

.timeline-table a:hover {
  text-decoration-color: var(--accent);
}

.tl-status-resolved {
  color: var(--green-hi);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tl-resolved td {
  color: var(--text-muted);
}

.tl-resolved .tl-freq {
  color: var(--text-primary) !important;
}

/* ── LIKENESS IMAGE (About page) ── */

.likeness-block {
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  overflow: hidden;
}

.likeness-img {
  width: 100%;
  display: block;
  filter: saturate(0.78) contrast(0.96);
  opacity: 0.92;
}

.likeness-meta {
  padding: 0.75rem 0.9rem;
  border-top: 1px solid var(--border);
}

.likeness-meta-label {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.4rem;
}

.likeness-meta-body {
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.7;
  font-style: italic;
}

/* ── TIMELINE / INTERSECTION DIAGRAM (CSE theory + future frequencies page) ── */

.diagram-figure-full {
  margin: 2rem 0;
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
}

.diagram-figure-full img {
  width: 100%;
  display: block;
  opacity: 0.95;
}

.diagram-figure-meta {
  padding: 0.6rem 0.9rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.diagram-figure-id {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.diagram-figure-status {
  font-size: 9px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

/* ── BREADCRUMB ── */

.breadcrumb {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 1.5rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.breadcrumb a {
  color: var(--text-faint);
}

.breadcrumb a:hover {
  color: var(--text-muted);
}

.breadcrumb .sep {
  color: var(--text-faint);
}

/* ── SIGNAL CARD - AUDIO VARIANT ── */

.signal-card[data-type="audio"] .signal-card-thumb,
.signal-card[data-type="video"] .signal-card-thumb,
.signal-card[data-type="both"] .signal-card-thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.35rem;
  background: var(--bg);
}

.signal-card[data-type="audio"] .no-thumb,
.signal-card[data-type="video"] .no-thumb,
.signal-card[data-type="both"] .no-thumb {
  font-size: 8px;
}

.signal-card-thumb img.failed {
  display: none;
}

.audio-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 16px;
}

.audio-bars span {
  display: inline-block;
  width: 2px;
  background: var(--text-faint);
  border-radius: 1px;
}


/* ─────────── Reconstruction audio/video toggle ─────────── */
.recon-module { margin-bottom: 1rem; }
.recon-tabs {
  display: flex;
  border: 1px solid var(--border-mid);
  border-bottom: none;
}
.recon-tab {
  flex: 1;
  background: var(--bg-surface);
  border: none;
  border-right: 1px solid var(--border-mid);
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.65rem 0.75rem;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
}
.recon-tab:last-child { border-right: none; }
.recon-tab:hover { color: var(--text-muted); }
.recon-tab.is-active {
  color: var(--text-bright);
  background: var(--bg);
  box-shadow: inset 0 -2px 0 0 var(--accent);
}
.recon-tab-glyph { color: var(--text-faint); }
.recon-tab.is-active .recon-tab-glyph { color: var(--accent); }
.recon-panel.is-hidden { display: none; }

/* ─────────── Signal card media-type indicator bar ─────────── */
.card-media-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.38rem 0.65rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.cmb-item {
  display: flex;
  align-items: center;
  gap: 0.28rem;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.cmb-label {
  line-height: 1;
}
.signal-card:hover .cmb-item {
  color: var(--text-muted);
}


/* ─────────────────────────────────────────────────────────────
   Mobile header / nav  (fixes horizontal overflow on small screens)
   Header was a single non-wrapping flex row ~1000px wide. On phones
   it overflowed the viewport, creating sideways scroll into empty
   space. These rules stack and wrap the header; no HTML changes.
   ───────────────────────────────────────────────────────────── */
@media (max-width: 760px) {
  html { overflow-x: hidden; }

  .site-wrap { padding: 0 1.25rem; }

  .site-header { padding: 1rem 0; }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }

  .site-wordmark {
    gap: 0.15rem;
    max-width: 100%;
  }

  /* let the long IAI designation string wrap instead of forcing width */
  .designation {
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 1.5;
  }

  nav { width: 100%; }

  /* nav links wrap to a tidy second row rather than overflowing */
  .site-nav {
    flex-wrap: wrap;
    gap: 0.55rem 1.25rem;
  }

  /* decorative status indicator hidden on small screens */
  .nav-status { display: none; }
}

@media (max-width: 400px) {
  .site-wrap { padding: 0 1rem; }
  .site-nav { gap: 0.5rem 1rem; }
  .designation { font-size: 9px; }
}