/* HLS // RAG TERMINAL — DECLASSIFIED ARCHIVE INTERFACE
   Aesthetic: late-70s teletype × modern editorial.
   Palette: ink + bone, phosphor amber accent, redaction red, blueprint cyan.
*/

:root {
  --ink-0: #08090b;
  --ink-1: #0d1014;
  --ink-2: #11161b;
  --ink-3: #161d23;
  --ink-4: #1e272f;
  --line-1: rgba(232, 226, 208, 0.06);
  --line-2: rgba(232, 226, 208, 0.12);
  --line-3: rgba(232, 226, 208, 0.22);

  --bone-0: #f3ecd8;
  --bone-1: #e8e2d0;
  --bone-2: #c9c0a7;
  --bone-3: #847e6b;
  --bone-4: #4a4636;

  --amber: #e89f32;
  --amber-glow: rgba(232, 159, 50, 0.55);
  --amber-soft: rgba(232, 159, 50, 0.16);
  --redact: #b23a28;
  --cyan: #4fa3b8;
  --cyan-soft: rgba(79, 163, 184, 0.18);
  --olive: #8a9a5b;

  --font-mono: "Geist Mono", "IBM Plex Mono", ui-monospace, "JetBrains Mono", monospace;
  --font-serif: "Newsreader", "Iowan Old Style", "Apple Garamond", Georgia, serif;

  --grid: 8px;
  --rail: clamp(1rem, 4vw, 2rem);
  --max: 1440px;

  /* ── Safe-area insets (iOS notch / home-indicator) ── */
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);

  /* ── Bottom sheet ── */
  --sheet-radius: 12px;
  --sheet-max-h: 85dvh;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-mono);
  background: var(--ink-0);
  color: var(--bone-1);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Atmosphere — film grain + blueprint grid + scanlines */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line-1) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-1) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 90%);
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.012) 0,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 3px
    ),
    radial-gradient(
      ellipse at top,
      rgba(232, 159, 50, 0.05),
      transparent 60%
    );
  z-index: 1;
}

/* Layout */
.terminal {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  height: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--rail);
}

/* ---- BANNER ---- */
.banner {
  padding-top: clamp(0.75rem, 2vw, 1.25rem);
  animation: drop 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.banner-track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(0.75rem, 2.5vw, 2.5rem);
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line-2);
  background:
    linear-gradient(180deg, rgba(232, 159, 50, 0.06), transparent 70%),
    var(--ink-1);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-2);
}
.banner-block {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  white-space: nowrap;
}
.banner-block.primary {
  flex: 0 0 auto;
  color: var(--amber);
  font-weight: 600;
  letter-spacing: 0.22em;
}
.banner-marker {
  color: var(--redact);
  filter: drop-shadow(0 0 4px rgba(178, 58, 40, 0.6));
}
.banner-class {
  padding: 0.05rem 0.45rem;
  border: 1px solid var(--amber);
  border-radius: 1px;
}
.banner-key {
  color: var(--bone-3);
  font-weight: 500;
}
.banner-val {
  color: var(--bone-1);
  font-weight: 500;
}
.banner-val.state-streaming {
  color: var(--amber);
  text-shadow: 0 0 8px var(--amber-glow);
  animation: pulse-text 1.4s ease-in-out infinite;
}
.banner-val.state-submitted {
  color: var(--cyan);
}
.banner-val.state-error {
  color: var(--redact);
}
.banner-rule {
  margin-top: 0.4rem;
  height: 2px;
  background:
    linear-gradient(90deg, var(--amber) 0, var(--amber) 30%, transparent 30%, transparent 60%, var(--amber) 60%, var(--amber) 64%, transparent 64%) 0 0/100% 1px no-repeat,
    linear-gradient(90deg, var(--line-2), transparent 80%) 0 1px/100% 1px no-repeat;
}

/* ---- BANNER COMPACT (mobile) ---- */
.banner-compact .banner-track {
  gap: 0.5rem;
  padding: 0.4rem 0.65rem;
  font-size: 0.65rem;
}

/* ---- STAGE ---- */
.stage {
  position: relative;
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: clamp(1rem, 2vw, 2rem);
  padding: clamp(1.2rem, 3vw, 2rem) 0;
  min-height: 0;
}
@media (max-width: 920px) {
  .stage {
    grid-template-columns: 1fr;
  }
  /* Desktop source column hidden on mobile — FAB + sheet takes over */
  .stage > .sources {
    display: none;
  }
  /* NowBroadcasting nav arrows hidden — swipe gesture used instead */
  .nb-nav {
    display: none;
  }
  /* Stage stepper: single line, no wrapping on small screens */
  .stage-stepper {
    flex-wrap: nowrap;
    overflow: hidden;
    font-size: 0.58rem;
    gap: 0.35rem;
  }
  .stage-step::after {
    margin-left: 0.35rem;
  }
  /* Composer lifted above keyboard via --vvh CSS var set by visualViewport listener */
  .composer {
    padding-bottom: calc(0.4rem + var(--safe-b));
  }
  /* Footer: add safe-area bottom padding */
  .foot {
    padding-bottom: calc(0.85rem + var(--safe-b));
  }
}

/* ---- STREAM ---- */
.stream {
  position: relative;
  overflow-y: auto;
  scroll-behavior: smooth;
  padding-right: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-4) transparent;
}
.stream::-webkit-scrollbar {
  width: 8px;
}
.stream::-webkit-scrollbar-thumb {
  background: var(--ink-4);
  border-radius: 1px;
}

/* ---- BOOT SCREEN ---- */
.boot {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: clamp(1.5rem, 4vw, 3rem) 0;
  animation: fade-in 800ms ease both;
}
.boot-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  color: var(--amber);
  text-transform: uppercase;
}
.boot-flicker {
  animation: blink 1s steps(2) infinite;
  color: var(--amber);
  text-shadow: 0 0 6px var(--amber-glow);
}
.display {
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.2rem, 5.6vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--bone-0);
}
.display-line {
  display: block;
  animation: slide-up 900ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.display-line:nth-child(1) {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.36em;
  color: var(--bone-3);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  animation-delay: 0ms;
}
.display-line:nth-child(2) {
  animation-delay: 120ms;
}
.display-line:nth-child(2) em {
  font-style: italic;
  color: var(--amber);
  font-family: var(--font-serif);
  background: linear-gradient(180deg, transparent 75%, var(--amber-soft) 75%);
  padding: 0 0.05em;
}
.display-line.accent {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: clamp(0.85rem, 1.6vw, 1.05rem);
  letter-spacing: 0.05em;
  color: var(--cyan);
  margin-top: 0.6rem;
  animation-delay: 220ms;
}
.lede {
  max-width: 56ch;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.55;
  color: var(--bone-2);
  margin: 0;
  animation: fade-in 1000ms 320ms ease both;
}
.suggestions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.suggestions-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  color: var(--bone-3);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}
.suggestion {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.9rem;
  padding: 0.7rem 0.95rem;
  border: 1px solid var(--line-2);
  background: linear-gradient(180deg, var(--ink-1), var(--ink-0));
  color: var(--bone-1);
  font-family: var(--font-serif);
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
  animation: slide-up 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.suggestion:hover,
.suggestion:focus-visible {
  border-color: var(--amber);
  background: linear-gradient(180deg, rgba(232, 159, 50, 0.08), var(--ink-1));
  transform: translateX(2px);
  outline: none;
}
.suggestion:hover .suggestion-arrow,
.suggestion:focus-visible .suggestion-arrow {
  color: var(--amber);
  transform: translateX(2px);
}
.suggestion-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--bone-3);
}
.suggestion-text {
  flex: 1;
  line-height: 1.45;
}
.suggestion-arrow {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--bone-3);
  transition: color 160ms ease, transform 160ms ease;
}

/* ---- MESSAGES ---- */
.msg {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0 0 1.6rem 0;
  animation: fade-in 320ms ease both;
  /* Vercel rendering-content-visibility — skip layout/paint for off-screen
     messages. ~10× faster initial render once history grows past a screen. */
  content-visibility: auto;
  contain-intrinsic-size: 0 240px;
}
.msg-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  color: var(--bone-3);
  text-transform: uppercase;
}
.msg-tag {
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--line-3);
  color: var(--bone-2);
}
.msg-tag.accent {
  color: var(--amber);
  border-color: var(--amber);
}
.msg-id {
  color: var(--bone-4);
}
.msg-pill {
  margin-left: auto;
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  background: var(--cyan-soft);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
}
.msg-pill.subtle {
  border-color: var(--line-3);
  background: transparent;
  color: var(--bone-3);
}
.msg-body {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--bone-0);
}
.msg-user .user-body {
  border-left: 2px solid var(--cyan);
  padding: 0.4rem 0 0.4rem 1rem;
  color: var(--bone-1);
  font-style: italic;
}
.msg-assistant .assistant-body {
  border-left: 1px solid var(--amber);
  padding: 0.6rem 0 0.6rem 1.1rem;
  position: relative;
}
.msg-assistant .assistant-body::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 36px;
  background: var(--amber);
  filter: drop-shadow(0 0 6px var(--amber-glow));
}
.para-break {
  display: block;
  height: 0.9rem;
}
.citation {
  font-family: var(--font-mono);
  font-size: 0.78em;
  color: var(--cyan);
  background: var(--cyan-soft);
  padding: 0.05em 0.35em;
  border: 1px solid rgba(79, 163, 184, 0.45);
  margin: 0 0.15em;
  letter-spacing: 0.06em;
  vertical-align: 0.06em;
  border-radius: 1px;
}

/* ---- PULSE / LOADING ---- */
.pulse {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--bone-3);
  text-transform: uppercase;
}
.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 1px;
  animation: pulse-bounce 1s ease-in-out infinite;
}
.pulse-dot:nth-child(2) {
  animation-delay: 120ms;
}
.pulse-dot:nth-child(3) {
  animation-delay: 240ms;
}
.pulse-label::before {
  content: "// ";
  color: var(--bone-4);
}

.error-card {
  border: 1px solid var(--redact);
  padding: 0.8rem 1rem;
  background: rgba(178, 58, 40, 0.08);
  color: var(--bone-1);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.error-card pre {
  white-space: pre-wrap;
  margin: 0.4rem 0 0;
}

/* ---- SOURCES ---- */
.sources {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-2);
  background: linear-gradient(180deg, var(--ink-1), var(--ink-0));
  padding: 0.9rem 0.95rem;
  overflow: hidden;
  min-height: 0;
}
.sources::before {
  content: "FILE INDEX";
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
  transform-origin: right center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.5em;
  color: var(--bone-4);
  pointer-events: none;
}
.sources-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.7rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--line-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.sources-title {
  color: var(--amber);
}
.sources-count {
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--line-3);
  color: var(--bone-2);
}
.sources-empty {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  color: var(--bone-3);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-style: italic;
}
.redact {
  color: var(--redact);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  filter: drop-shadow(0 0 6px rgba(178, 58, 40, 0.4));
}
.sources-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-4) transparent;
}
.source {
  border: 1px solid var(--line-2);
  background: var(--ink-2);
  transition: border-color 160ms ease, background 160ms ease;
}
.source.open {
  border-color: var(--amber);
  background: linear-gradient(180deg, rgba(232, 159, 50, 0.06), var(--ink-2));
}
.source-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 0;
  background: transparent;
  color: var(--bone-1);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-align: left;
  cursor: pointer;
}
.source-num {
  color: var(--amber);
  font-weight: 600;
  letter-spacing: 0.06em;
}
.source-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--bone-1);
}
.source-score {
  color: var(--cyan);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}
.source-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 0.7rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bone-3);
}
.source-cat {
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--line-3);
}
.source-path {
  color: var(--bone-2);
  text-transform: none;
  letter-spacing: 0.04em;
}
.source-snippet {
  position: relative;
  padding: 0.6rem 0.7rem 0.7rem;
  border-top: 1px dashed var(--line-2);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--bone-1);
  background: rgba(232, 226, 208, 0.02);
}
.source-snippet p {
  margin: 0;
}
.watermark {
  position: absolute;
  right: 0.6rem;
  top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  color: var(--bone-4);
  text-transform: uppercase;
  pointer-events: none;
}

/* ---- COMPOSER ---- */
.composer {
  padding: 0.5rem 0 0.4rem;
  animation: drop 700ms 200ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.composer-rail {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line-3);
  background: var(--ink-1);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.composer-rail:focus-within {
  border-color: var(--amber);
  box-shadow: 0 0 0 1px var(--amber), 0 0 24px -6px var(--amber-glow);
}
.composer-prompt {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--amber);
  text-shadow: 0 0 6px var(--amber-glow);
  user-select: none;
}
.composer-input {
  resize: none;
  min-height: 32px;
  max-height: 220px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--bone-0);
  font-family: var(--font-mono);
  font-size: 0.98rem;
  line-height: 1.5;
  caret-color: var(--amber);
}
.composer-input::placeholder {
  color: var(--bone-4);
  font-style: italic;
}
.composer-btn {
  border: 1px solid var(--amber);
  background: transparent;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
  white-space: nowrap;
}
.composer-btn:hover:not(:disabled) {
  background: var(--amber);
  color: var(--ink-0);
}
.composer-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.composer-btn.stop {
  border-color: var(--redact);
  color: var(--redact);
}
.composer-btn.stop:hover {
  background: var(--redact);
  color: var(--bone-0);
}
.composer-hint {
  margin-top: 0.45rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--bone-4);
  text-transform: uppercase;
}

/* ---- FOOTER ---- */
.foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0 0.85rem;
  border-top: 1px solid var(--line-2);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--bone-4);
  text-transform: uppercase;
}
.dot {
  color: var(--bone-4);
}

/* ---- ANIMATIONS ---- */
@keyframes drop {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes blink {
  50% { opacity: 0; }
}
@keyframes pulse-bounce {
  0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-4px); box-shadow: 0 0 8px var(--amber-glow); }
}
@keyframes pulse-text {
  50% { opacity: 0.55; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0ms !important;
  }
}

/* OVERSEER-7 lifecycle + alert markers — block-level pills with
   distinct tints. Each gets its own row plus vertical padding so the
   stream reads cleanly even when the model crowds them inline. */
.overseer-marker {
  display: block;
  margin: calc(var(--grid) * 1.5) 0;
  padding: calc(var(--grid) * 0.75) calc(var(--grid) * 1.25);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-left: 2px solid currentColor;
  border-radius: 2px;
  background: rgba(232, 226, 208, 0.04);
  white-space: pre-wrap;
}
.overseer-marker.marker-terminal {
  color: var(--cyan);
  background: var(--cyan-soft);
}
.overseer-marker.marker-end {
  color: var(--cyan);
  background: var(--cyan-soft);
  opacity: 0.85;
}
.overseer-marker.marker-status {
  color: var(--amber);
  background: var(--amber-soft);
}
.overseer-marker.marker-anomaly {
  color: var(--bone-0);
  background: rgba(178, 58, 40, 0.22);
  border-left-color: var(--redact);
  font-weight: 600;
}
.overseer-marker.marker-corpus {
  color: var(--bone-3);
  font-size: 0.7rem;
  opacity: 0.6;
}

/* ---- DOC INDEX SIDEBAR ---- */
.doc-index {
  display: flex;
  flex-direction: column;
  gap: calc(var(--grid) * 0.75);
  padding: calc(var(--grid) * 1.5);
  background: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}
.doc-index.loading,
.doc-index.error-card {
  color: var(--bone-3);
  font-size: 0.82rem;
}
.doc-index-head {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-bottom: 1px solid var(--line-2);
  padding-bottom: calc(var(--grid) * 0.75);
}
.doc-index-tag {
  color: var(--cyan);
  letter-spacing: 0.12em;
  font-weight: 600;
  text-transform: uppercase;
}
.doc-index-meta {
  color: var(--bone-3);
  font-size: 0.7rem;
}
.doc-index-filter {
  background: var(--ink-1);
  color: var(--bone-1);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: 0.4rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  outline: none;
}
.doc-index-filter:focus {
  border-color: var(--amber);
}
.doc-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: calc(var(--grid) * 0.75);
}
.doc-index-row {
  padding: calc(var(--grid) * 0.5) calc(var(--grid) * 0.75);
  border-left: 2px solid var(--line-2);
  background: rgba(232, 226, 208, 0.02);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.doc-index-row:hover {
  border-left-color: var(--amber);
  background: rgba(232, 159, 50, 0.04);
}
.doc-index-stem {
  color: var(--bone-1);
  font-size: 0.78rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.doc-index-stats {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--bone-3);
  font-size: 0.68rem;
}
.doc-index-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.68rem;
  color: var(--bone-3);
}
.doc-index-date {
  color: var(--bone-2);
  font-style: italic;
}
.badge {
  display: inline-block;
  padding: 0.05rem 0.35rem;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.badge.cyan {
  color: var(--cyan);
  background: var(--cyan-soft);
}
.badge.amber {
  color: var(--amber);
  background: var(--amber-soft);
}
.badge.red {
  color: var(--bone-0);
  background: rgba(178, 58, 40, 0.22);
}

/* Verbose-sweep toggle in the composer hint row. */
.mode-toggle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: 0.18rem 0.5rem;
  color: var(--bone-3);
  cursor: pointer;
  transition: all 0.18s ease;
}
.mode-toggle:hover,
.mode-toggle:focus-visible {
  border-color: var(--amber);
  color: var(--bone-1);
  outline: none;
}
.mode-toggle.verbose {
  color: var(--amber);
  border-color: var(--amber);
  background: var(--amber-soft);
  text-shadow: 0 0 6px var(--amber-glow);
}

.corpus-toggle-buttons {
  display: inline-flex;
  gap: 0.25rem;
}
.corpus-pill {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: 0.12rem 0.45rem;
  color: var(--bone-3);
  cursor: pointer;
  transition: all 0.18s ease;
}
.corpus-pill:hover,
.corpus-pill:focus-visible {
  border-color: var(--amber);
  color: var(--bone-1);
  outline: none;
}

/* Hit area for corpus pills */
.corpus-pill {
  position: relative;
}
.corpus-pill::before {
  content: "";
  position: absolute;
  inset: -8px -6px;
}
.corpus-pill.active {
  color: var(--amber);
  border-color: var(--amber);
  background: var(--amber-soft);
  text-shadow: 0 0 6px var(--amber-glow);
}
.foot-corpus {
  margin-left: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-3);
}

/* ─────────────────────────────────────────────────────────────────────────
   GROUND ZERO PLUS — corpus-aware theme overlay
   Triggered via [data-corpus="groundzero_v1"] on the .terminal root.
   Shifts accent toward late-night-radio ember, adds transmission glow,
   and gives suggestions a subtle inner glass refraction border.
   Pure additive — falls back to the FOIA aesthetic when not active.
   ───────────────────────────────────────────────────────────────────────── */

[data-corpus="groundzero_v1"] {
  --amber: #d97a26;
  --amber-glow: rgba(217, 122, 38, 0.55);
  --amber-soft: rgba(217, 122, 38, 0.16);
  --cyan: #6f8cab;
  --cyan-soft: rgba(111, 140, 171, 0.16);
}

/* Transmission vignette — slow breathing radial behind the stage. */
[data-corpus="groundzero_v1"] .stage::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse at 30% 0%,
    rgba(217, 122, 38, 0.08) 0%,
    transparent 60%
  );
  mix-blend-mode: screen;
  animation: gz-breathe 9s ease-in-out infinite;
  z-index: 0;
}

/* Boot screen — shift italic line color, kerning, and add a "now broadcasting"
   ember dot before the SYSTEM READY label. Asymmetric layout cue. */
[data-corpus="groundzero_v1"] .boot {
  padding-left: clamp(0px, 4vw, 2.5rem);
}

[data-corpus="groundzero_v1"] .boot-header {
  letter-spacing: 0.32em;
}

[data-corpus="groundzero_v1"] .boot-line::before {
  content: "";
  display: inline-block;
  width: 0.4rem;
  height: 0.4rem;
  margin-right: 0.6rem;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber-glow);
  animation: gz-broadcast 1.6s ease-in-out infinite;
  vertical-align: middle;
}

[data-corpus="groundzero_v1"] .display-line:nth-child(2) em {
  font-style: italic;
  color: var(--bone-0);
  letter-spacing: -0.01em;
}

[data-corpus="groundzero_v1"] .display-line.accent {
  color: var(--amber);
  text-shadow: 0 0 14px var(--amber-soft);
}

/* Suggestions — inner-edge glass refraction + tactile -1px on press.
   Magnetic-feel via spring-curve transition. No re-renders. */
[data-corpus="groundzero_v1"] .suggestion {
  position: relative;
  border: 1px solid var(--line-2);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02) 0%,
    rgba(255, 255, 255, 0.005) 100%
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 1px 0 rgba(0, 0, 0, 0.4);
  transition:
    transform 0.18s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.18s ease,
    background 0.18s ease,
    box-shadow 0.18s ease;
}

[data-corpus="groundzero_v1"] .suggestion:hover {
  transform: translateY(-1px);
  border-color: var(--amber);
  background: linear-gradient(
    180deg,
    rgba(217, 122, 38, 0.06) 0%,
    rgba(217, 122, 38, 0.02) 100%
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 8px 24px -12px var(--amber-glow);
}

[data-corpus="groundzero_v1"] .suggestion:active {
  transform: translateY(0);
  transition-duration: 0.06s;
}

/* Footer flag — replace "HLS-RAG" technical chrome with archive identity. */
[data-corpus="groundzero_v1"] .foot {
  border-top-color: var(--line-2);
}

[data-corpus="groundzero_v1"] .foot-corpus {
  color: var(--amber);
  letter-spacing: 0.18em;
}

@keyframes gz-broadcast {
  0%, 100% {
    opacity: 0.55;
    transform: scale(0.95);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

@keyframes gz-breathe {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ─────────────────────────────────────────────────────────────────────────
   STAGE STEPPER — plan → retrieve → synthesize → verify
   Sits above the assistant answer prose; one dot per completed stage.
   ───────────────────────────────────────────────────────────────────────── */

.stage-stepper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.3rem 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-3);
}

.stage-step {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.stage-step::after {
  content: "→";
  margin-left: 0.5rem;
  color: var(--line-3);
}

.stage-step:last-child::after {
  display: none;
}

.stage-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 4px var(--amber-glow);
}

/* ─────────────────────────────────────────────────────────────────────────
   NOW BROADCASTING STRIP
   Top-of-page marquee for GZ corpus; shows curated episode metadata.
   ───────────────────────────────────────────────────────────────────────── */

.now-broadcasting {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.35rem var(--rail);
  background: rgba(217, 122, 38, 0.07);
  border-bottom: 1px solid rgba(217, 122, 38, 0.18);
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  color: var(--bone-2);
  animation: fade-in 600ms ease both;
  overflow: hidden;
}

.nb-dot {
  flex: 0 0 auto;
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber-glow);
  animation: gz-broadcast 1.6s ease-in-out infinite;
}

.nb-label {
  flex: 0 0 auto;
  color: var(--amber);
  font-weight: 600;
  letter-spacing: 0.2em;
  font-size: 0.6rem;
}

.nb-title {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--bone-1);
}

.nb-date {
  flex: 0 0 auto;
  color: var(--bone-3);
  font-size: 0.6rem;
}

.nb-nav {
  flex: 0 0 auto;
  display: flex;
  gap: 0.25rem;
}

.nb-arrow {
  background: none;
  border: 1px solid var(--line-2);
  color: var(--bone-3);
  font-size: 0.9rem;
  line-height: 1;
  padding: 0.1rem 0.35rem;
  cursor: pointer;
  transition: border-color 0.14s ease, color 0.14s ease;
}

.nb-arrow:hover,
.nb-arrow:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
}

/* ---- NB TITLE BUTTON ---- */
.nb-title-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--bone-1);
  cursor: pointer;
  text-align: left;
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.14s ease;
}
.nb-title-btn:hover,
.nb-title-btn:focus-visible {
  color: var(--amber);
  outline: none;
}

/* Touch hit-area expansion — pseudo-element padding trick so
   visual size is unchanged but tap target meets 44px minimum. */
.nb-arrow {
  position: relative;
}
.nb-arrow::before {
  content: "";
  position: absolute;
  inset: -8px -6px;
}

/* ─────────────────────────────────────────────────────────────────────────
   THEME CLOUD — rendered below stream after retrieval
   ───────────────────────────────────────────────────────────────────────── */

.theme-cloud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem var(--rail);
  border-top: 1px solid var(--line-1);
  animation: fade-in 400ms ease both;
}

.theme-cloud-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bone-4);
  margin-right: 0.4rem;
}

.theme-cloud-chip {
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--line-2);
  background: none;
  color: var(--bone-3);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease, transform 0.15s cubic-bezier(0.16,1,0.3,1);
}

.theme-cloud-chip:hover,
.theme-cloud-chip:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--amber-soft);
  transform: translateY(-1px);
  outline: none;
}

.theme-cloud-chip:active {
  transform: translateY(0);
  transition-duration: 0.06s;
}

/* ─────────────────────────────────────────────────────────────────────────
   EPISODE-GROUPED SOURCE PANEL
   Replaces the flat list with collapsible episode accordions.
   ───────────────────────────────────────────────────────────────────────── */

.ep-groups {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ep-group {
  border: 1px solid var(--line-1);
  background: var(--ink-1);
}

.ep-group.ep-open {
  border-color: var(--line-2);
}

.ep-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.6rem;
  background: none;
  border: none;
  color: var(--bone-2);
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.05em;
  text-align: left;
  cursor: pointer;
  transition: background 0.14s ease;
}

.ep-head:hover,
.ep-head:focus-visible {
  background: rgba(255, 255, 255, 0.025);
  outline: none;
}

/* Expand tap target on ep-toggle icon area */
.ep-toggle {
  position: relative;
}
.ep-toggle::before {
  content: "";
  position: absolute;
  inset: -8px -6px;
}

.ep-toggle {
  flex: 0 0 auto;
  color: var(--bone-3);
  font-size: 0.6rem;
}

.ep-title {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--bone-1);
  font-weight: 500;
}

.ep-count {
  flex: 0 0 auto;
  padding: 0.05rem 0.3rem;
  border: 1px solid var(--line-2);
  font-size: 0.6rem;
  color: var(--bone-3);
  letter-spacing: 0;
}

.ep-date {
  flex: 0 0 auto;
  font-size: 0.6rem;
  color: var(--bone-3);
}

.ep-body {
  padding: 0 0.6rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

/* Theme chips inside episode panel */
.ep-themes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding-top: 0.15rem;
}

.theme-chip {
  padding: 0.1rem 0.4rem;
  border: 1px solid rgba(217, 122, 38, 0.25);
  background: rgba(217, 122, 38, 0.06);
  color: rgba(217, 122, 38, 0.8);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  border-radius: 1px;
}

/* Guest badges */
.ep-guests {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.guest-badge {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--cyan-soft);
  background: var(--cyan-soft);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
}

.guest-icon {
  font-size: 0.5rem;
  color: var(--cyan);
}

/* Caller badges */
.ep-callers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.caller-badge {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.02);
  color: var(--bone-2);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.04em;
}

.caller-icon {
  font-size: 0.5rem;
  color: var(--bone-3);
}

/* Chunk list */
.chunk-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.chunk-card {
  border: 1px solid var(--line-1);
  background: var(--ink-0);
}

.chunk-card.chunk-summary {
  border-color: rgba(217, 122, 38, 0.15);
  background: rgba(217, 122, 38, 0.03);
}

.chunk-card.chunk-qa {
  border-left: 2px solid var(--cyan);
}

.chunk-head {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  padding: 0.4rem 0.5rem;
  background: none;
  border: none;
  color: var(--bone-2);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.04em;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease;
}

.chunk-head:hover,
.chunk-head:focus-visible {
  background: rgba(255, 255, 255, 0.02);
  outline: none;
}

.chunk-num {
  flex: 0 0 auto;
  color: var(--bone-4);
  font-size: 0.58rem;
}

.chunk-seg-icon {
  flex: 0 0 auto;
  font-size: 0.58rem;
  color: var(--bone-3);
}

.qa-badge {
  flex: 0 0 auto;
  padding: 0.05rem 0.25rem;
  border: 1px solid var(--cyan-soft);
  color: var(--cyan);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
}

.summary-badge {
  flex: 0 0 auto;
  padding: 0.05rem 0.25rem;
  border: 1px solid rgba(217, 122, 38, 0.3);
  color: var(--amber);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
}

.chunk-excerpt-preview {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--bone-3);
  font-size: 0.62rem;
}

.chunk-toggle {
  flex: 0 0 auto;
  color: var(--bone-4);
  font-size: 0.55rem;
}

.chunk-body {
  padding: 0.4rem 0.5rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-top: 1px solid var(--line-1);
}

.chunk-excerpt {
  margin: 0;
  padding: 0.45rem 0.55rem;
  border-left: 2px solid var(--amber);
  background: rgba(255, 255, 255, 0.015);
  font-family: var(--font-serif);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--bone-2);
  position: relative;
}

.chunk-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.58rem;
  color: var(--bone-4);
  letter-spacing: 0.06em;
}

.chunk-id {
  font-family: var(--font-mono);
}

.chunk-score {
  color: var(--bone-3);
}

/* Timestamp range button */
.timestamp-range {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.15rem 0.4rem;
  background: none;
  border: 1px solid var(--line-2);
  color: var(--bone-3);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: border-color 0.12s ease, color 0.12s ease;
}

.timestamp-range:hover,
.timestamp-range:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
  outline: none;
}

.ts-icon {
  font-size: 0.6rem;
}

.ts-copied {
  color: var(--olive);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* GZ boot meta line */
.gz-boot-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--bone-3);
  animation: fade-in 900ms 280ms ease both;
}

.gz-meta-label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--amber);
  font-size: 0.58rem;
}

/* Error retry CTA */
.error-retry {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.5rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--redact);
  background: none;
  color: var(--redact);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.14s ease, color 0.14s ease;
}

.error-retry:hover,
.error-retry:focus-visible {
  background: rgba(178, 58, 40, 0.12);
  outline: none;
}

/* ─────────────────────────────────────────────────────────────────────────
   SOURCE FAB — floating action button (mobile only, portal-rendered)
   ───────────────────────────────────────────────────────────────────────── */

.source-fab {
  position: fixed;
  bottom: calc(5rem + var(--safe-b));
  right: calc(1.1rem + var(--safe-r));
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line-3);
  border-radius: 4px;
  background: var(--ink-2);
  color: var(--bone-2);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  cursor: pointer;
  box-shadow: 0 4px 24px -4px rgba(0, 0, 0, 0.7);
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
  /* Display: none on desktop; shown only on mobile via media query below */
  display: none;
}
.source-fab:hover,
.source-fab:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--ink-1);
  outline: none;
}
.source-fab-loaded {
  border-color: var(--amber);
  color: var(--amber);
}
.source-fab-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  border-radius: 2px;
  background: var(--amber);
  color: var(--ink-0);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 16px;
  text-align: center;
}
.source-fab-icon {
  font-size: 1.1rem;
  line-height: 1;
}
@media (max-width: 920px) {
  .source-fab {
    display: flex;
  }
}

/* ─────────────────────────────────────────────────────────────────────────
   SOURCE SHEET — bottom sheet portal
   ───────────────────────────────────────────────────────────────────────── */

.source-sheet-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(8, 9, 11, 0.72);
  backdrop-filter: blur(2px);
  animation: fade-in 180ms ease both;
}

.source-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 91;
  max-height: var(--sheet-max-h);
  border-top-left-radius: var(--sheet-radius);
  border-top-right-radius: var(--sheet-radius);
  background: var(--ink-1);
  border: 1px solid var(--line-2);
  border-bottom: none;
  display: flex;
  flex-direction: column;
  padding-bottom: var(--safe-b);
  animation: sheet-rise 280ms cubic-bezier(0.16, 1, 0.3, 1) both;
  overflow: hidden;
}

@keyframes sheet-rise {
  from { transform: translateY(100%); opacity: 0.6; }
  to   { transform: translateY(0);    opacity: 1; }
}

.sheet-handle {
  flex: 0 0 auto;
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: var(--line-3);
  margin: 10px auto 4px;
}

/* Override sources panel when inside the sheet */
.sources-sheet {
  border: none;
  background: transparent;
  padding-top: 0.5rem;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}
/* Suppress rotated "FILE INDEX" watermark in sheet mode */
.sources-sheet::before {
  display: none;
}

.source-sheet-close {
  flex: 0 0 auto;
  width: 100%;
  padding: 0.65rem;
  border: none;
  border-top: 1px solid var(--line-2);
  background: var(--ink-2);
  color: var(--bone-3);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.14s ease, background 0.14s ease;
}
.source-sheet-close:hover,
.source-sheet-close:focus-visible {
  color: var(--redact);
  background: rgba(178, 58, 40, 0.08);
  outline: none;
}

/* ─────────────────────────────────────────────────────────────────────────
   CITATION CHIP + TAP-TO-REVEAL POPOVER
   ───────────────────────────────────────────────────────────────────────── */

.citation-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25em;
  font-family: var(--font-mono);
  font-size: 0.78em;
  color: var(--cyan);
  background: var(--cyan-soft);
  padding: 0.05em 0.35em;
  border: 1px solid rgba(79, 163, 184, 0.45);
  border-radius: 1px;
  margin: 0 0.15em;
  letter-spacing: 0.06em;
  vertical-align: 0.06em;
  cursor: pointer;
  position: relative;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.citation-chip:hover,
.citation-chip:focus-visible {
  background: rgba(79, 163, 184, 0.28);
  border-color: var(--cyan);
  outline: none;
}
.citation-chip[aria-expanded="true"] {
  background: rgba(79, 163, 184, 0.28);
  border-color: var(--cyan);
}

.citation-popover {
  position: fixed;
  z-index: 100;
  min-width: 220px;
  max-width: min(320px, 90vw);
  padding: 0.6rem 0.75rem;
  background: var(--ink-2);
  border: 1px solid var(--line-3);
  border-radius: 3px;
  box-shadow: 0 8px 32px -8px rgba(0, 0, 0, 0.8);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--bone-2);
  letter-spacing: 0.04em;
  animation: fade-in 140ms ease both;
  pointer-events: auto;
}
.citation-popover-title {
  color: var(--amber);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
  font-size: 0.65rem;
}
.citation-popover-excerpt {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--bone-2);
  margin-top: 0.3rem;
  padding-top: 0.3rem;
  border-top: 1px solid var(--line-1);
}

/* ─────────────────────────────────────────────────────────────────────────
   TOAST — ephemeral status notifications
   ───────────────────────────────────────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: calc(5.5rem + var(--safe-b));
  left: 50%;
  transform: translateX(-50%);
  z-index: 110;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--line-3);
  border-radius: 3px;
  background: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--bone-2);
  white-space: nowrap;
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.7);
  animation: slide-up 220ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.toast-rate-limit {
  border-color: var(--redact);
  color: var(--bone-1);
  background: rgba(178, 58, 40, 0.12);
}

/* ─────────────────────────────────────────────────────────────────────────
   SIGNUP WALL — full-screen paywall modal (HTTP 402)
   ───────────────────────────────────────────────────────────────────────── */

.signup-wall {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8, 9, 11, 0.92);
  backdrop-filter: blur(6px);
  padding: 1.5rem;
  animation: fade-in 300ms ease both;
}

.signup-wall-inner {
  width: 100%;
  max-width: 480px;
  border: 1px solid var(--line-3);
  background: var(--ink-1);
  padding: 2rem 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.signup-wall-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--bone-3);
}
.signup-wall-class {
  flex: 1;
  text-align: center;
  color: var(--redact);
  letter-spacing: 0.3em;
  font-weight: 600;
}

.signup-wall-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 4vw, 1.75rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--bone-0);
}

.signup-wall-lede {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--bone-2);
}

.signup-wall-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.signup-wall-cta {
  display: block;
  padding: 0.75rem 1rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid;
  transition: background 0.14s ease, color 0.14s ease;
  cursor: pointer;
}
.signup-wall-cta.primary {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-0);
}
.signup-wall-cta.primary:hover,
.signup-wall-cta.primary:focus-visible {
  background: var(--bone-1);
  border-color: var(--bone-1);
  outline: none;
}
.signup-wall-cta.secondary {
  background: transparent;
  border-color: var(--line-3);
  color: var(--bone-2);
}
.signup-wall-cta.secondary:hover,
.signup-wall-cta.secondary:focus-visible {
  border-color: var(--bone-2);
  color: var(--bone-0);
  outline: none;
}

.signup-wall-footer {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bone-4);
  text-align: center;
  border-top: 1px solid var(--line-1);
  padding-top: 0.75rem;
}

/* Boot shell — paints instantly while ChatApp lazy-chunk loads. */
.boot-shell {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  background: var(--ink-0, #0a0a0a);
}
.boot-shell-banner {
  height: 44px;
  border-bottom: 1px solid var(--line-1, #2a2a2a);
}
.boot-shell-stage {
  flex: 1;
}

/* ─────────────────────────────────────────────────────────────────────────
   MOBILE TYPOGRAPHY + LAYOUT — phone/tablet readability pass.
   Override the desktop sub-1rem mono cascade so 12-14px text doesn't
   end up as 10px Retina equivalent. iOS textarea font-size >= 16px to
   prevent auto-zoom on focus.
   ───────────────────────────────────────────────────────────────────────── */

@media (max-width: 920px) {
  :root {
    --rail: clamp(0.65rem, 3vw, 1.25rem);
  }

  /* Boot / hero display — bump the floor so the headline reads on a phone. */
  .display {
    font-size: clamp(2.6rem, 9vw, 4.8rem);
    line-height: 1.04;
  }

  /* Banner */
  .banner-track             { font-size: 0.78rem; gap: 0.55rem; padding: 0.5rem 0.7rem; }
  .banner-compact .banner-track { font-size: 0.74rem; padding: 0.45rem 0.6rem; }

  /* Stage stepper — the inline status pill replaces the multi-step grid. */
  .stage-stepper            { font-size: 0.72rem; gap: 0.4rem; }

  /* Suggestions */
  .suggestions-label        { font-size: 0.78rem; }
  .suggestion-text          { font-size: 1.08rem; line-height: 1.4; }
  .suggestion-num           { font-size: 0.82rem; }
  .suggestion               { padding: 0.85rem 0.9rem; }

  /* Message body — the actual reading surface. */
  .msg-body                 { font-size: 1.06rem; line-height: 1.55; }
  .msg-head                 { font-size: 0.78rem; }
  .msg-pill                 { font-size: 0.7rem; }

  /* Composer / textarea — 16px floor stops iOS Safari auto-zoom. */
  .composer textarea,
  .composer input[type="text"],
  .composer input[type="search"] {
    font-size: 16px;
    line-height: 1.4;
    padding: 0.75rem 0.85rem;
  }
  .composer button          { font-size: 0.85rem; min-height: 44px; padding: 0 0.95rem; }

  /* Source FAB + sheet handle */
  .source-fab               { font-size: 0.85rem; padding: 0.7rem 1rem; }
  .source-sheet-close       { font-size: 0.82rem; padding: 0.85rem; }

  /* Citation chips need to be tappable */
  .citation-chip            { font-size: 0.95em; padding: 0.15em 0.45em; }

  /* Source panel content */
  .chunk-head               { font-size: 0.78rem; }
  .chunk-body               { font-size: 0.95rem; line-height: 1.5; }

  /* NowBroadcasting strip */
  .nb-title                 { font-size: 1.05rem; line-height: 1.35; }
  .nb-meta                  { font-size: 0.82rem; }

  /* Theme cloud chips */
  .theme-cloud-chip         { font-size: 0.78rem; padding: 0.4rem 0.7rem; }

  /* Footer */
  .foot                     { font-size: 0.78rem; }

  /* Tighten vertical rhythm — terminal layout was desktop-tuned. */
  .stage                    { padding: 0.75rem 0; gap: 0.85rem; }
  .banner                   { padding-top: 0.65rem; }
}

@media (max-width: 480px) {
  /* Phone-only — even tighter rail, slightly larger body. */
  :root {
    --rail: 0.5rem;
  }
  .msg-body                 { font-size: 1.08rem; }
  .display                  { font-size: clamp(2.4rem, 11vw, 3.4rem); letter-spacing: -0.01em; }
  .banner-track             { font-size: 0.72rem; }
  .banner-compact .banner-track { font-size: 0.7rem; }
}

/* ─────────────────────────────────────────────────────────────────────────
   MOBILE FIXES — overrides for rules that came after the earlier
   @media block in source order and lost the cascade race.
   ───────────────────────────────────────────────────────────────────────── */

@media (max-width: 920px) {
  /* Hide nav arrows — swipe-gesture handler in NowBroadcasting takes over.
     The earlier @media block was overridden by the desktop .nb-nav rule
     declared further down. This one wins on cascade order. */
  .nb-nav { display: none !important; }

  /* Boot meta: ARCHIVE DEPTH label was wrapping mid-word. Stack vertical,
     drop tracking on the value so it fits a phone column. */
  .gz-boot-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 0.6rem 0.75rem;
  }
  .gz-meta-label { font-size: 0.68rem; letter-spacing: 0.18em; }
  .gz-meta-val   { font-size: 0.92rem; letter-spacing: 0.04em; line-height: 1.35; }

  /* Now-broadcasting: keep single row, ellipsize title to fit phone width.
     flex-wrap collapsed parent height + caused gz-boot-meta to overlap
     the title row. Stay horizontal. */
  .now-broadcasting {
    align-items: center;
    flex-wrap: nowrap;
    overflow: hidden;
    gap: 0.4rem;
  }
  .nb-label { flex: 0 0 auto; }
  .nb-title {
    flex: 1 1 0;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: left;
    font-size: 0.95rem;
  }
  .nb-date { flex: 0 0 auto; font-size: 0.7rem; opacity: 0.75; }

  /* Composer placeholder: long ASCII string wraps inside the textarea on
     narrow widths. Multi-line composer is fine; just bump padding so the
     wrap doesn't crowd the TRANSMIT button. */
  .composer-rail { gap: 0.4rem; }
  .composer-input { line-height: 1.4; }
}