/* IP-068 base stylesheet. Companion palette to monad.martinvanco.sk.
   Voice: dry, formally funny. Visual: light, airy, generous. */

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--motion-short) var(--motion-easing);
}
a:hover { color: var(--ink); }

::selection { background: var(--primary-15); color: var(--ink); }

/* ---- Containers ---------------------------------------------------- */
.container { max-width: 1080px; margin: 0 auto; padding: 0 2rem; }

/* ---- Site nav (sticky, blurred) ------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--primary-08);
  display: flex; align-items: center;
}
.site-header-inner {
  max-width: 1080px; width: 100%; margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
}
.site-mark {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); font-weight: 700; letter-spacing: -0.01em;
}
.site-mark:hover { color: var(--ink); }
.site-mark .mark-glyph {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #7d8fe6);
  display: inline-flex; align-items: center; justify-content: center;
  color: white; font-weight: 800; font-size: 0.85rem;
}
.site-nav { display: flex; gap: 1.75rem; align-items: center; }
.site-nav a {
  color: var(--ink-40); font-size: 0.875rem; font-weight: 500;
}
.site-nav a:hover, .site-nav a.is-active { color: var(--primary); }

/* ---- Page main + sections ------------------------------------------ */
.site-main { min-height: calc(100vh - 64px - 200px); }
section.page-section { padding: 5rem 0 4rem; }
section.page-section:first-of-type { padding-top: 4rem; }

.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--primary);
  margin-bottom: 0.75rem;
}
.section-label::before {
  content: ''; display: block; width: 8px; height: 8px;
  border-radius: 50%; background: var(--primary); opacity: 0.45;
}
.section-label.accent { color: var(--accent); }
.section-label.accent::before { background: var(--accent); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.15;
}
.h-display {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 800;
}
.h-section {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 1rem;
}
.h-card { font-size: 1.05rem; font-weight: 700; }

.lead {
  color: var(--ink-60); font-size: 1.1rem; line-height: 1.7;
  max-width: 60ch;
}
p { color: var(--ink-80); max-width: 65ch; }
p + p { margin-top: 0.85rem; }

article.prose h2 { margin-top: 2.5rem; font-size: 1.5rem; }
article.prose h3 { margin-top: 1.6rem; font-size: 1.1rem; }
article.prose p { margin-top: 1rem; color: var(--ink-80); }
article.prose ul, article.prose ol { margin: 1rem 0 1rem 1.2rem; color: var(--ink-80); }
article.prose li { margin-bottom: 0.3rem; }
article.prose code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: var(--primary-08); color: var(--primary);
  padding: 0.05rem 0.4rem; border-radius: 6px;
}
article.prose pre {
  background: var(--ink); color: #e6e8ec; padding: 1.25rem;
  border-radius: var(--r-md); overflow-x: auto;
  font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.5;
  margin: 1.5rem 0;
}
article.prose pre code { background: transparent; color: inherit; padding: 0; }
article.prose blockquote {
  border-left: 3px solid var(--primary); padding-left: 1rem;
  color: var(--ink-60); margin: 1rem 0; font-style: italic;
}
article.prose a {
  border-bottom: 1px solid var(--primary-15);
}
article.prose a:hover { border-bottom-color: var(--primary); }

/* ---- Buttons ------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 12px 22px; border-radius: var(--r-md);
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 600;
  text-decoration: none; border: 1.5px solid transparent;
  cursor: pointer; user-select: none;
  transition: transform var(--motion-short) var(--motion-easing),
              box-shadow var(--motion-short) var(--motion-easing),
              background var(--motion-short) var(--motion-easing),
              color var(--motion-short) var(--motion-easing),
              border-color var(--motion-short) var(--motion-easing);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--primary); color: white;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover { transform: translateY(-1px); color: white; box-shadow: 0 4px 24px rgba(91,110,204,0.4); }

.btn-accent {
  background: var(--accent); color: var(--ink);
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover { transform: translateY(-1px); color: var(--ink); box-shadow: 0 4px 24px rgba(255,160,51,0.45); }

.btn-ghost {
  background: transparent; color: var(--ink-80);
  border: 1.5px solid var(--ink-12);
}
.btn-ghost:hover { background: var(--ink-06); color: var(--ink); }

/* ---- Cards / chips -------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--motion-short) var(--motion-easing),
              box-shadow var(--motion-short) var(--motion-easing),
              border-color var(--motion-short) var(--motion-easing);
}
a.card { color: var(--ink); display: block; }
a.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--primary-15);
  color: var(--ink);
}

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  background: var(--primary-08); color: var(--primary);
}
.chip.accent { background: var(--accent-light); color: #C7791F; }
.chip.ink { background: var(--ink-06); color: var(--ink-60); }
.chip.method { background: var(--primary-08); color: var(--primary); }
.chip.problem { background: var(--accent-light); color: #C7791F; }
.chip.dataset { background: rgba(22, 163, 74, 0.1); color: var(--ok); }
.chip.hardware { background: var(--ink-06); color: var(--ink-60); }
.chip.term { background: var(--ink-06); color: var(--ink-60); }
.chip.topic { background: var(--primary-08); color: var(--primary); }
.chip.episode { background: var(--accent-light); color: #C7791F; }
.chip.community { background: var(--primary-08); color: var(--primary); }

/* Live pulse dot for "today's episode" badges */
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(255, 160, 51, 0.5);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 160, 51, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(255, 160, 51, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 160, 51, 0); }
}

/* ---- HERO ----------------------------------------------------------- */
.hero {
  position: relative;
  padding: 5rem 0 4rem;
  background: var(--surface);
  overflow: hidden;
  border-bottom: 1px solid var(--ink-06);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: 3rem;
  align-items: start;
}
.hero-left { display: grid; gap: 1.5rem; }
.hero-rail {
  display: grid; gap: 1rem; position: sticky; top: 84px;
  align-self: start;
}
.rail-card {
  background: var(--bg);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  padding: 1.4rem 1.5rem;
  display: grid;
  gap: 0.85rem;
}
.rail-card p { color: var(--ink-60); font-size: 0.92rem; max-width: none; }
.stat-list { list-style: none; padding: 0; display: grid; gap: 0.55rem; }
.stat-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 0.5rem; border-bottom: 1px dashed var(--ink-12);
  font-size: 0.92rem; color: var(--ink-60);
}
.stat-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.stat-list strong { font-family: var(--font-display); font-size: 1.4rem; color: var(--ink); font-weight: 800; }

.rail-list { list-style: none; padding: 0; display: grid; gap: 0.5rem; }
.rail-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 0.45rem 0;
  border-bottom: 1px dashed var(--ink-12);
  font-size: 0.92rem;
}
.rail-list li:last-child { border-bottom: 0; }
.rail-list a { color: var(--ink); }
.rail-list a:hover { color: var(--primary); }
.rail-list .mono { color: var(--ink-40); font-size: 0.85rem; }
.rail-cta {
  display: inline-flex; gap: 4px; align-items: center;
  color: var(--primary); font-weight: 600; font-size: 0.9rem;
  padding-top: 0.25rem;
}
.rail-card-help { color: var(--ink-60); font-size: 0.88rem; line-height: 1.55; max-width: none; }

/* ---- Topic detail page (sidebar layout) ---------------------------- */
.topic-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr);
  gap: 3rem;
  align-items: start;
  margin-top: 1rem;
}
.topic-main { min-width: 0; }
.topic-body { margin-top: 1.5rem; }
.topic-rail { display: grid; gap: 1rem; position: sticky; top: 84px; align-self: start; }

.rail-paper-list { list-style: none; padding: 0; display: grid; gap: 0.7rem; }
.rail-paper-list li { display: grid; gap: 0.3rem; padding-bottom: 0.7rem; border-bottom: 1px dashed var(--ink-12); }
.rail-paper-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.rail-paper-title { color: var(--ink); font-size: 0.92rem; line-height: 1.35; }
.rail-paper-meta { display: flex; gap: 0.6rem; align-items: baseline; font-size: 0.8rem; }
.rail-paper-meta .mono { color: var(--ink-40); }

@media (max-width: 920px) {
  .topic-layout { grid-template-columns: 1fr; gap: 2rem; }
  .topic-rail { position: static; }
}

/* ---- Coverage dashboard ------------------------------------------- */
.coverage-dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}
.coverage-grid { display: grid; gap: 1.75rem; }
.coverage-grid-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
}
.dashboard-card {
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  display: grid; gap: 1.1rem;
}
.dashboard-card .card-head { display: grid; gap: 0.25rem; }
.dashboard-card .card-head h2 {
  font-family: var(--font-display);
  font-size: 1.15rem; font-weight: 700; margin: 0;
  letter-spacing: -0.01em;
}
.dashboard-card .card-head .card-sub { color: var(--ink-60); font-size: 0.85rem; }
.dashboard-card .card-chart { min-height: 240px; }
.dashboard-side {
  display: grid;
  gap: 1.5rem;
  align-self: start;
}
.kpi-stack { display: grid; gap: 0.6rem; }
.kpi-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 0.55rem 0; border-bottom: 1px dashed var(--ink-12);
  font-size: 0.92rem; color: var(--ink-60);
}
.kpi-row:last-child { border-bottom: 0; }
.kpi-row strong { font-family: var(--font-display); font-size: 1.3rem; color: var(--ink); font-weight: 800; }

.entity-list { list-style: none; padding: 0; display: grid; gap: 0.7rem; }
.entity-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  align-items: center;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--ink-12);
}
.entity-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.entity-list .entity-name {
  display: grid; gap: 0.35rem;
  min-width: 0;
}
.entity-list .entity-name a {
  color: var(--ink); font-weight: 600; font-size: 0.94rem;
  display: block;
}
.entity-list .entity-name a:hover { color: var(--primary); }
.entity-list .entity-bar {
  height: 5px; background: var(--ink-06); border-radius: 999px; overflow: hidden;
}
.entity-list .entity-bar > span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--primary), #7d8fe6);
  transition: width var(--motion-medium) var(--motion-easing);
}
.entity-list .entity-count {
  font-family: var(--font-mono); color: var(--ink-60);
  font-size: 0.85rem; font-weight: 600;
}

@media (max-width: 1000px) {
  .coverage-dashboard { grid-template-columns: 1fr; }
  .coverage-grid-row { grid-template-columns: 1fr; }
}

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-rail { position: static; }
}
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(91,110,204,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91,110,204,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 70% at 50% 30%, black 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 30%, black 10%, transparent 75%);
}
.hero-inner { position: relative; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; background: var(--primary-08);
  border: 1px solid var(--primary-15);
  border-radius: 999px; font-size: 0.8rem; font-weight: 500;
  color: var(--primary); margin-bottom: 1.25rem;
}
.hero-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary);
  animation: pulse-quiet 2.4s infinite;
}
@keyframes pulse-quiet {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.hero-pitch {
  font-size: clamp(2.4rem, 5vw, 3.4rem); font-weight: 800;
  line-height: 1.1; letter-spacing: -0.02em;
  max-width: 18ch;
  margin-bottom: 1.25rem;
}
.hero-pitch .accent-text { color: var(--primary); }
.hero-subhead {
  font-size: 1.1rem; line-height: 1.7; color: var(--ink-60);
  max-width: 58ch;
}

/* ---- Latest-episode strip ----------------------------------------- */
.latest-episode {
  margin: 1rem 0 0;
  background: linear-gradient(180deg, var(--surface), var(--surface-alt));
  border: 1px solid var(--ink-06);
  border-radius: var(--r-xl);
  padding: 1.75rem;
  display: grid;
  gap: 1rem;
  box-shadow: var(--shadow-card);
}
.latest-episode-head {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1rem;
  align-items: center;
}
.latest-episode-date {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--ink-60);
}
.latest-episode-title {
  font-size: 1.45rem; font-weight: 700; letter-spacing: -0.01em;
  margin: 0;
}
.latest-episode-title a { color: var(--ink); }
.latest-episode-title a:hover { color: var(--primary); }
.latest-episode-teaser {
  color: var(--ink-60); font-size: 0.95rem;
  max-width: 60ch; margin: 0;
}
.latest-episode-actions {
  display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap;
  padding-top: 0.5rem;
}

/* ---- CTA row ------------------------------------------------------- */
.cta-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin: 2.5rem 0;
}
.cta-card {
  display: grid; gap: 0.5rem; padding: 1.4rem 1.6rem;
}
.cta-card .cta-kicker {
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--primary);
}
.cta-card .cta-title { font-size: 1.1rem; font-weight: 700; color: var(--ink); }
.cta-card .cta-meta { color: var(--ink-60); font-size: 0.85rem; }
.cta-card .cta-arrow {
  margin-top: 0.4rem; color: var(--primary); font-weight: 600; font-size: 0.85rem;
  display: inline-flex; align-items: center; gap: 4px;
}

/* ---- Surprise card ------------------------------------------------- */
.surprise-section {
  margin: 3rem 0 1rem;
}
.surprise-card {
  background: var(--surface);
  border: 1.5px dashed var(--primary-15);
  border-radius: var(--r-lg);
  padding: 1.4rem 1.6rem;
  display: grid; gap: 0.6rem;
}
.surprise-card .surprise-kind {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--ink-40); text-transform: uppercase; letter-spacing: 0.08em;
}
.surprise-card .surprise-title { font-size: 1.15rem; font-weight: 700; margin: 0; }
.surprise-card .surprise-title a { color: var(--ink); }
.surprise-card .surprise-title a:hover { color: var(--primary); }
.surprise-card .surprise-excerpt { color: var(--ink-60); margin: 0; }
.surprise-card .surprise-actions { display: flex; gap: 1rem; align-items: center; }
.surprise-reroll {
  background: transparent; color: var(--ink-60);
  border: 1px solid var(--ink-12); border-radius: var(--r-sm);
  padding: 0.35rem 0.85rem; font-size: 0.8rem; cursor: pointer;
  font-family: var(--font-body);
}
.surprise-reroll:hover { color: var(--primary); border-color: var(--primary-15); }
.surprise-empty { color: var(--ink-40); font-style: italic; }

/* ---- Snapshot strip ------------------------------------------------ */
.snapshot-strip {
  display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 2rem;
  padding-top: 1.5rem; border-top: 1px dashed var(--ink-12);
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-40);
}
.snapshot-strip strong { color: var(--ink); font-weight: 700; }

/* ---- Custom audio player ------------------------------------------ */
.audio-player {
  background: var(--surface); border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  padding: 1rem 1.2rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}
.audio-player-large {
  padding: 1.4rem 1.6rem;
  box-shadow: var(--shadow-card);
}
.audio-play {
  width: 44px; height: 44px; border-radius: 50%;
  border: 0; cursor: pointer;
  background: var(--primary); color: white;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-primary);
  transition: transform var(--motion-short) var(--motion-easing),
              box-shadow var(--motion-short) var(--motion-easing);
}
.audio-play:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(91,110,204,0.4); }
.audio-play svg { width: 16px; height: 16px; }

.audio-middle {
  display: grid; gap: 6px;
  min-width: 0;
}
.audio-progress {
  position: relative;
  height: 6px; border-radius: 3px;
  background: var(--ink-06); cursor: pointer;
  overflow: hidden;
}
.audio-progress-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--primary), #7d8fe6);
  width: 0%;
  border-radius: 3px;
  transition: width 100ms linear;
}
.audio-progress-buffered {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: var(--ink-12); width: 0%; border-radius: 3px;
}
.audio-times {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-40);
}

.audio-controls {
  display: flex; align-items: center; gap: 0.4rem;
}
.audio-skip, .audio-rate {
  background: transparent; border: 1px solid var(--ink-12);
  color: var(--ink-60); border-radius: 999px;
  padding: 0.3rem 0.7rem; font-family: var(--font-mono); font-size: 0.72rem;
  cursor: pointer;
  transition: color var(--motion-short), border-color var(--motion-short);
}
.audio-skip:hover, .audio-rate:hover { color: var(--primary); border-color: var(--primary-15); }
.audio-rate { min-width: 48px; }

@media (max-width: 720px) {
  .audio-player { grid-template-columns: 1fr; gap: 0.85rem; padding: 1rem; }
  .audio-play { margin: 0 auto; }
  .audio-controls { justify-content: center; }
}

/* ---- About page ---------------------------------------------------- */
.about-shell { display: grid; gap: 1.5rem; }
.about-shell .about-project {
  background: var(--surface);
  padding: 2.5rem;
  border-radius: var(--r-lg);
  border: 1px solid var(--ink-06);
  box-shadow: var(--shadow-card);
}
.about-shell .about-bio {
  background: var(--surface-alt);
  padding: 2rem 2.5rem;
  border-radius: var(--r-lg);
  border: 1px solid var(--ink-06);
}
.about-shell .about-bio h2 { margin-top: 0; }
.about-shell .about-project article:first-child > p:first-child:first-letter,
.about-shell .about-project > p:first-child:first-letter {
  font-family: var(--font-display);
  font-size: 3rem;
  float: left;
  line-height: 0.9;
  padding: 0.3rem 0.6rem 0 0;
  color: var(--primary);
  font-weight: 800;
}

/* ---- Episode page -------------------------------------------------- */
.episode-section .detail-breadcrumb { margin-bottom: 1rem; }
.episode-head { display: grid; gap: 0.75rem; margin-bottom: 2rem; }
.episode-head-meta { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; }
.episode-head-date { font-size: 0.85rem; }
.episode-title { max-width: 22ch; margin: 0; }
.episode-teaser-lead { color: var(--ink-60); max-width: 65ch; margin: 0; }
.episode-player {
  margin: 1.5rem 0 2.5rem;
  padding: 1.6rem 1.8rem;
  background: linear-gradient(135deg, var(--primary-08), var(--accent-light));
  border: 1px solid var(--primary-15);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}
.episode-player .audio-player {
  background: var(--surface);
  box-shadow: var(--shadow-card);
}
.show-notes { margin: 2.5rem 0 2rem; }
.show-notes h2:first-child { margin-top: 0; color: var(--ink); font-size: 1.6rem; }
.transcript-disclosure {
  margin: 1.5rem 0 3rem;
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
}
.transcript-disclosure > summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.5rem;
  display: flex; gap: 0.6rem; align-items: baseline;
  font-weight: 700; color: var(--ink);
  font-size: 1.05rem;
}
.transcript-disclosure > summary::-webkit-details-marker { display: none; }
.transcript-disclosure > summary::before {
  content: '▸'; color: var(--primary); transition: transform var(--motion-short);
  display: inline-block;
}
.transcript-disclosure[open] > summary::before { transform: rotate(90deg); }
.transcript-disclosure .transcript-body {
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid var(--ink-06);
  margin-top: 0;
  max-height: 60vh;
  overflow-y: auto;
}
.transcript-body p { font-size: 0.95rem; }
.episode-footer { margin-top: 2rem; }

/* ---- Topic / edu tree --------------------------------------------- */
.topic-grid { display: grid; gap: 0.75rem; }
.topic-leaf-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.1rem 1.3rem;
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-md);
  transition: border-color var(--motion-short) var(--motion-easing),
              transform var(--motion-short) var(--motion-easing),
              box-shadow var(--motion-short) var(--motion-easing);
}
.topic-leaf-card:hover {
  border-color: var(--primary-15); transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}
.topic-leaf-card .topic-name { color: var(--ink); font-weight: 600; }
.topic-leaf-card .topic-name:hover { color: var(--primary); }
.topic-leaf-card .topic-summary { color: var(--ink-60); font-size: 0.9rem; margin-top: 0.25rem; }
.topic-leaf-card .topic-meta { display: flex; gap: 0.5rem; align-items: center; }
.topic-branch-card {
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-md);
  padding: 0;
  overflow: hidden;
}
.topic-branch-card summary {
  cursor: pointer; padding: 1rem 1.3rem; font-weight: 600; color: var(--ink);
  list-style: none;
  display: flex; align-items: center; gap: 0.6rem;
}
.topic-branch-card summary::-webkit-details-marker { display: none; }
.topic-branch-card summary::before {
  content: '›'; transition: transform var(--motion-short);
  display: inline-block; font-size: 1.1rem; color: var(--ink-40);
}
.topic-branch-card[open] > summary::before { transform: rotate(90deg); }
.topic-branch-card .topic-grid { padding: 0 1.3rem 1.1rem; }

/* ---- Episode list -------------------------------------------------- */
.episode-grid { display: grid; gap: 1rem; }
.episode-card {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 1.25rem;
  align-items: center;
  padding: 1.2rem 1.4rem;
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-md);
  transition: transform var(--motion-short), box-shadow var(--motion-short), border-color var(--motion-short);
}
.episode-card:hover {
  transform: translateY(-1px); box-shadow: var(--shadow-card);
  border-color: var(--primary-15);
}
.episode-card .ep-date { font-family: var(--font-mono); color: var(--ink-60); font-size: 0.85rem; }
.episode-card .ep-title { color: var(--ink); font-weight: 600; font-size: 1.05rem; display: block; }
.episode-card .ep-title:hover { color: var(--primary); }
.episode-card .ep-meta { color: var(--ink-40); font-size: 0.82rem; margin-top: 0.2rem; display: flex; gap: 0.7rem; }
.episode-card .ep-teaser { color: var(--ink-60); font-size: 0.92rem; margin-top: 0.4rem; }
.episode-card .ep-duration { font-family: var(--font-mono); color: var(--ink-40); font-size: 0.82rem; text-align: right; }

@media (max-width: 720px) {
  .episode-card { grid-template-columns: 1fr; gap: 0.4rem; }
  .episode-card .ep-duration { text-align: left; }
}

/* ---- Paper list (entity / community pages) ------------------------ */
.paper-list { list-style: none; padding: 0; display: grid; gap: 0.6rem; }
.paper-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 1rem;
  align-items: baseline;
  padding: 0.8rem 1rem;
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-sm);
  transition: border-color var(--motion-short);
}
.paper-row:hover { border-color: var(--primary-15); }
.paper-row .paper-title { color: var(--ink); }
.paper-row .paper-year { color: var(--ink-40); font-family: var(--font-mono); font-size: 0.82rem; }
.paper-row .paper-doi {
  font-family: var(--font-mono); font-size: 0.8rem;
  background: var(--primary-08); color: var(--primary);
  padding: 0.18rem 0.55rem; border-radius: 6px;
}
.paper-row .paper-doi:hover { background: var(--primary); color: white; }

/* ---- Entity / community detail ------------------------------------ */
.detail-head { display: grid; gap: 0.5rem; margin-bottom: 2rem; }
.detail-breadcrumb {
  font-size: 0.85rem; color: var(--ink-40);
}
.detail-breadcrumb a { color: var(--ink-60); }
.detail-aliases { color: var(--ink-40); font-style: italic; font-size: 0.92rem; }
.detail-summary { color: var(--ink-60); max-width: 65ch; }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag-cloud .chip { font-size: 0.8rem; text-transform: none; letter-spacing: 0; font-weight: 500; }
.tag-cloud .chip .tag-count { font-family: var(--font-mono); color: var(--ink-40); margin-left: 0.4rem; }

/* ---- Coverage ------------------------------------------------------ */
.coverage-shell { display: grid; gap: 2rem; }
.coverage-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #7d8fe6 100%);
  color: white;
  border-radius: var(--r-xl);
  padding: 2.5rem 2rem;
  display: grid; gap: 0.5rem; place-items: start;
}
.coverage-hero .coverage-score { font-family: var(--font-display); font-size: 4rem; font-weight: 800; line-height: 1; }
.coverage-hero .coverage-of { color: rgba(255,255,255,0.7); }
.coverage-hero .coverage-caption { color: rgba(255,255,255,0.85); font-size: 0.95rem; }

/* ---- Graph page (flashy iteration 4) ------------------------------ */
.graph-page-section { padding: 4rem 0 2rem; }
.graph-help { color: var(--ink-60); max-width: 72ch; margin-bottom: 1.5rem; }

.graph-toolbar {
  display: flex; align-items: center; gap: 0.85rem; flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  padding: 0.85rem 1.1rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-card);
}
.graph-search-wrap { position: relative; flex: 1; min-width: 220px; max-width: 320px; }
#graph-search {
  width: 100%; padding: 0.55rem 0.8rem;
  background: var(--bg); border: 1px solid var(--ink-12);
  border-radius: var(--r-sm); color: var(--ink); font-family: var(--font-body);
  font-size: 0.9rem;
}
#graph-search:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-08); }
#graph-search-results {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  margin: 0; padding: 0; list-style: none;
  background: var(--surface); border: 1px solid var(--ink-12);
  border-radius: var(--r-sm); max-height: 320px; overflow-y: auto;
  z-index: 10; box-shadow: var(--shadow-lift);
}
#graph-search-results li {
  display: grid; grid-template-columns: 1fr 50px; gap: 0.8rem;
  padding: 0.55rem 0.85rem; cursor: pointer;
  border-bottom: 1px solid var(--ink-06);
}
#graph-search-results li:last-child { border-bottom: 0; }
#graph-search-results li:hover { background: var(--primary-08); }
#graph-search-results .hit-title { color: var(--ink); }
#graph-search-results .hit-year { color: var(--ink-40); font-family: var(--font-mono); font-size: 0.85rem; }
#graph-snap-community {
  padding: 0.55rem 0.8rem;
  background: var(--bg); border: 1px solid var(--ink-12);
  border-radius: var(--r-sm); color: var(--ink); font-family: var(--font-body);
  font-size: 0.9rem;
}
.graph-toggle-row { display: flex; gap: 0.6rem; align-items: center; margin-left: auto; flex-wrap: wrap; }
.graph-toggle {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.85rem; color: var(--ink-60);
  background: var(--bg); border: 1px solid var(--ink-12);
  border-radius: 999px; padding: 0.35rem 0.85rem;
  cursor: pointer; user-select: none;
  transition: color var(--motion-short), border-color var(--motion-short), background var(--motion-short);
}
.graph-toggle:has(input:checked) { color: var(--primary); border-color: var(--primary-15); background: var(--primary-08); }
.graph-toggle input { accent-color: var(--primary); }
.graph-reset {
  background: transparent; border: 1px solid var(--ink-12);
  color: var(--ink-60); border-radius: 999px;
  padding: 0.35rem 0.85rem; font-family: var(--font-body); font-size: 0.85rem;
  cursor: pointer;
}
.graph-reset:hover { color: var(--primary); border-color: var(--primary-15); }

.graph-stage {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(91,110,204,0.22), transparent 55%),
    radial-gradient(circle at 82% 80%, rgba(255,160,51,0.16), transparent 55%),
    linear-gradient(180deg, #0E1330, #050817 100%);
  box-shadow: var(--shadow-lift);
  isolation: isolate;
}
.graph-stage::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 50%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 50%, transparent 100%);
}
.graph-canvas {
  width: 100%;
  height: 76vh;
  min-height: 540px;
}
.graph-error, .graph-empty {
  padding: 3rem; text-align: center; color: rgba(255,255,255,0.7);
}

.graph-legend {
  position: absolute; top: 1rem; left: 1rem;
  display: grid; gap: 0.4rem;
  background: rgba(8, 11, 28, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 0.85rem 1rem;
  max-width: 300px;
  z-index: 2;
}
.legend-row {
  display: grid; grid-template-columns: 14px 1fr auto;
  gap: 0.55rem; align-items: center;
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color var(--motion-short);
}
.legend-row:hover { color: #ffffff; }
.legend-dot {
  width: 12px; height: 12px; border-radius: 50%;
  box-shadow: 0 0 12px 0 currentColor;
  display: inline-block;
}
.legend-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.legend-count { font-family: var(--font-mono); color: rgba(255,255,255,0.4); font-size: 0.75rem; }

.graph-info {
  position: fixed; bottom: 1.2rem; right: 1.2rem;
  width: 340px; max-width: calc(100vw - 2rem);
  background: rgba(11, 16, 38, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 1.05rem 1.25rem;
  box-shadow: 0 20px 60px rgba(5,8,23,0.5);
  display: grid; gap: 0.55rem;
  color: rgba(255,255,255,0.95);
  z-index: 5;
}
.graph-info h3 { margin: 0; font-size: 1.05rem; line-height: 1.3; color: #ffffff; }
.info-meta { color: rgba(255,255,255,0.6); font-size: 0.85rem; margin: 0; }
.info-community-row { margin: 0; font-size: 0.88rem; display: flex; gap: 0.5rem; align-items: center; }
.info-dot { width: 9px; height: 9px; border-radius: 50%; box-shadow: 0 0 10px 0 currentColor; }
.info-community-link { color: rgba(255,255,255,0.95); font-weight: 600; }
.info-community-link:hover { color: #ffffff; }
.info-doi {
  color: var(--accent); font-family: var(--font-mono); font-size: 0.85rem;
  display: inline-block; padding-top: 0.25rem;
}
.info-doi-missing { color: rgba(255,255,255,0.4); }

/* ---- Footer -------------------------------------------------------- */
.site-footer {
  margin-top: 6rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--ink-06);
  background: var(--bg);
}
.site-footer-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 2rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1.5rem;
  font-size: 0.85rem; color: var(--ink-40);
}
.site-footer-brand {
  display: flex; align-items: center; gap: 1.2rem;
}
.fiit-mark img {
  height: 36px; width: auto; display: block;
  opacity: 0.75;
  transition: opacity var(--motion-short);
}
.fiit-mark:hover img { opacity: 1; }
.site-footer-copy { color: var(--ink-40); }
.site-footer-links { display: flex; gap: 1.5rem; }
.site-footer-links a { color: var(--ink-40); }
.site-footer-links a:hover { color: var(--primary); }

/* ---- Landing fact band -------------------------------------------- */
.facts-section { padding: 4rem 0 3rem; }
.facts-heading { margin-bottom: 1.75rem; }
.facts-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.facts-grid .fact-card {
  display: grid; gap: 0.5rem;
  padding: 1.5rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--ink-06);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
}
.facts-grid .fact-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(91,110,204,0.07), transparent 60%);
  pointer-events: none;
}
.facts-grid .fact-card.fact-problem::before { background: linear-gradient(135deg, rgba(255,160,51,0.10), transparent 60%); }
.facts-grid .fact-card.fact-dataset::before { background: linear-gradient(135deg, rgba(52,211,153,0.10), transparent 60%); }
.facts-grid .fact-card.fact-community::before { background: linear-gradient(135deg, rgba(124,58,237,0.08), transparent 60%); }
.facts-grid .fact-card.fact-fresh::before { background: linear-gradient(135deg, rgba(15,20,47,0.04), transparent 60%); }
.fact-card > * { position: relative; z-index: 1; }
.fact-label {
  font-family: var(--font-mono); font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--primary);
}
.fact-card.fact-problem .fact-label { color: #C7791F; }
.fact-card.fact-dataset .fact-label { color: var(--ok); }
.fact-card.fact-community .fact-label { color: #7C3AED; }
.fact-card.fact-fresh .fact-label { color: var(--ink-60); }
.fact-value {
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 700;
  line-height: 1.2; letter-spacing: -0.01em; color: var(--ink);
}
.fact-subtitle { color: var(--ink-60); font-size: 0.85rem; }

.fact-paper-list { list-style: none; padding: 0; display: grid; gap: 0.65rem; margin: 0; }
.fact-paper-list li { display: grid; gap: 0.25rem; padding-bottom: 0.55rem; border-bottom: 1px dashed var(--ink-12); }
.fact-paper-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.fact-paper-title { font-size: 0.88rem; line-height: 1.4; color: var(--ink); }
.fact-paper-meta { display: flex; gap: 0.6rem; align-items: baseline; font-size: 0.78rem; }

@media (max-width: 960px) {
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .facts-grid { grid-template-columns: 1fr; }
}

/* ---- Topic index grid ---------------------------------------------- */
.topic-group { margin-top: 2.5rem; }
.topic-group-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem;
  padding-bottom: 0.6rem; border-bottom: 1px solid var(--ink-06);
}
.topic-group-name {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 700;
  letter-spacing: -0.01em; margin: 0;
}
.topic-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.topic-card {
  display: grid; gap: 0.75rem;
  padding: 1.4rem 1.5rem;
  text-decoration: none;
  color: var(--ink);
}
.topic-card-head { display: flex; gap: 0.5rem; align-items: center; }
.topic-card-name {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: -0.01em; margin: 0;
  line-height: 1.3;
}
.topic-card-summary {
  color: var(--ink-60); font-size: 0.9rem;
  line-height: 1.55; margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.topic-card-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.6rem; margin-top: auto;
  border-top: 1px dashed var(--ink-12); padding-top: 0.7rem;
  font-size: 0.82rem;
}
.topic-card-arrow { color: var(--primary); font-weight: 600; }

/* ---- Mobile -------------------------------------------------------- */
@media (max-width: 720px) {
  .site-header-inner { padding: 0 1.2rem; }
  .site-nav { gap: 1rem; }
  .container { padding: 0 1.2rem; }
  section.page-section { padding: 3rem 0; }
  .cta-row { grid-template-columns: 1fr; }
  .hero-pitch { max-width: none; }
  .latest-episode-actions { gap: 0.5rem; }
}

/* ---- Misc ---------------------------------------------------------- */
.muted { color: var(--ink-40); }
.mono { font-family: var(--font-mono); }
hr.divider { border: 0; border-top: 1px dashed var(--ink-12); margin: 2.5rem 0; }