/* ==========================================================================
   THE LAST QUESTION — ISAAC ASIMOV (1956)
   Dotmax & Drawille P1-Phosphor Braille Terminal Edition
   Configuration:
   - styleMode: "braille"
   - backdropShader: "braille"
   - palette: "green"
   - spoilerParticleVeil: true
   - glyphScrambleHeaders: true
   - tufteSidenotesAndSparklines: true
   - crtScanlinesPct: 45
   - bayerDitherGrainPct: 0
   - fontSizePx: 19
   ========================================================================== */

:root {
  --font-display: "Instrument Serif", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;

  --story-font-size: 19px;
  --story-line-height: 1.74;

  /* P1 Phosphor Green Palette */
  --bg-primary: #040d08;
  --bg-elevated: rgba(8, 24, 15, 0.9);
  --bg-card: rgba(6, 16, 11, 0.92);
  --text-primary: #9effc4;
  --text-secondary: #52c983;
  --text-muted: #2b7a4b;
  --accent: #5eff9e;
  --accent-2: #22d3ee;
  --accent-glow: rgba(94, 255, 158, 0.28);
  --border-color: rgba(94, 255, 158, 0.25);
  --border-strong: rgba(94, 255, 158, 0.65);

  --scanline-opacity: 0.45;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   BACKGROUND SHADERS, UNICODE BRAILLE SKY & CRT SCANLINES (45%)
   ========================================================================== */
#bg-shader-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

#bg-braille-layer {
  position: fixed;
  inset: 0;
  margin: 0;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.05;
  color: var(--accent);
  opacity: 0.22;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
  white-space: pre;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

#fx-crt-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: var(--scanline-opacity);
  background:
    linear-gradient(
      rgba(18, 16, 16, 0) 50%,
      rgba(0, 0, 0, 0.45) 50%
    ),
    radial-gradient(
      circle at center,
      transparent 56%,
      rgba(0, 0, 0, 0.62) 100%
    );
  background-size: 100% 4px, 100% 100%;
}

#genesis-flash-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(circle at center, #ffffff 0%, #9effc4 38%, #22d3ee 75%, transparent 100%);
  transition: opacity 1.6s cubic-bezier(0.16, 1, 0.3, 1);
}

#genesis-flash-overlay.active {
  opacity: 0.95;
}

/* ==========================================================================
   STICKY TOP TELEMETRY & EPOCH NAVBAR
   ========================================================================== */
.telemetry-bar {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(4, 13, 8, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 12px;
}

.nav-inner {
  max-width: 1320px;
  margin: 0 auto;
  min-height: 52px;
  padding: 6px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

/* Left Brand Pill */
.brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 11px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  text-decoration: none;
  color: var(--text-primary);
  background: rgba(94, 255, 158, 0.04);
  flex-shrink: 0;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.brand-pill:hover {
  border-color: var(--accent);
  background: rgba(94, 255, 158, 0.1);
}

.brand-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
}

.brand-title-full {
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 11.5px;
}

.brand-title-short {
  display: none;
  font-weight: 700;
  letter-spacing: 0.06em;
  font-size: 11.5px;
}

/* Center Desktop Segmented Epoch Pills */
.epoch-pills {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.35);
}

.epoch-pill-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.epoch-pill-btn .ep-pill-ac {
  display: none;
}

.epoch-pill-btn.active .ep-pill-ac {
  display: inline;
}

.epoch-pill-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-color);
}

.epoch-pill-btn.active {
  background: var(--accent);
  color: #040d08;
  border-color: var(--accent);
  font-weight: 700;
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Center Mobile Unified Status Trigger (Hidden on Desktop) */
.mobile-status-trigger {
  display: none;
}

/* Right Telemetry + Audio */
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.telemetry-metrics {
  display: flex;
  align-items: center;
  gap: 16px;
}

.metric-cell {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.metric-label {
  font-size: 8.5px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.metric-value {
  font-weight: 600;
  font-size: 11.5px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.entropy-meter-wrap {
  display: flex;
  align-items: center;
  gap: 7px;
}

.bayer-gauge {
  width: 48px;
  height: 9px;
  border: 1px solid var(--border-color);
  padding: 1px;
  background: rgba(0, 0, 0, 0.45);
}

.bayer-gauge-fill {
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    var(--accent) 0px,
    var(--accent) 3px,
    transparent 3px,
    transparent 5px
  );
  transition: width 0.35s ease;
}

.hud-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-primary);
  background: rgba(94, 255, 158, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.hud-btn:hover,
.hud-btn.active {
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* Segmented EN / HU Language Switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 2px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.45);
}

.lang-btn {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: 3px;
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.16s ease;
}

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

.lang-btn.active {
  background: var(--accent);
  color: #040d08;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* Bottom 2px Glowing Entropy Progress Rail */
.nav-entropy-rail {
  width: 100%;
  height: 2px;
  background: rgba(94, 255, 158, 0.08);
  overflow: hidden;
}

.nav-entropy-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 8px var(--accent);
  transition: width 0.35s ease;
}

/* Mobile Slide-Down Terminal Drawer */
.nav-drawer {
  border-top: 1px dashed var(--border-color);
  background: rgba(3, 10, 6, 0.98);
  padding: 14px;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.75);
}

.nav-drawer[hidden] {
  display: none !important;
}

.nav-drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.drawer-telemetry-item {
  padding: 8px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: rgba(94, 255, 158, 0.03);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.drawer-epochs-label {
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.drawer-epochs-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.drawer-epoch-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  background: rgba(94, 255, 158, 0.03);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}

.drawer-epoch-btn.active {
  background: var(--accent);
  color: #040d08;
  border-color: var(--accent);
  font-weight: 700;
}

.drawer-ep-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.drawer-ep-roman {
  font-weight: 700;
  min-width: 24px;
}

.drawer-ep-year {
  font-size: 10.5px;
  opacity: 0.8;
  white-space: nowrap;
}

/* ==========================================================================
   STORY STAGE & MASTHEAD
   ========================================================================== */
.story-stage {
  position: relative;
  z-index: 10;
  max-width: 1260px;
  margin: 0 auto;
  padding: 44px 24px 110px;
}

.story-masthead {
  text-align: center;
  padding: 32px 20px 42px;
  margin-bottom: 40px;
  border-bottom: 1px dashed var(--border-color);
}

.masthead-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}

.story-main-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.98;
  margin: 0 0 16px;
  color: var(--text-primary);
  text-shadow: 0 0 28px rgba(94, 255, 158, 0.22);
}

.story-byline {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* INTERACTIVE COSMIC TIMELINE TRACK */
.cosmic-timeline-card {
  max-width: 1060px;
  margin: 0 auto;
  padding: 16px 20px;
  border-radius: 6px;
  border: 1px dashed var(--border-strong);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  text-align: left;
}

.timeline-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

#timeline-active-summary {
  color: var(--accent);
  font-weight: 700;
}

.timeline-track {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.timeline-node {
  padding: 10px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: rgba(94, 255, 158, 0.02);
  cursor: pointer;
  transition: all 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.timeline-node:hover,
.timeline-node.active {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.tn-roman {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  font-weight: 700;
}

.tn-ac {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.tn-year {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-secondary);
}

.tn-bar {
  margin-top: 4px;
  height: 3px;
  background: rgba(94, 255, 158, 0.14);
  border-radius: 2px;
  overflow: hidden;
}

.tn-bar-fill {
  height: 100%;
  background: var(--accent);
}

/* ==========================================================================
   EPOCH SECTIONS (BRAILLE TERMINAL MODE · 19px Font Scale)
   ========================================================================== */
.epochs-container {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.epoch-section {
  position: relative;
  padding: 36px;
  border-radius: 6px;
  border: 1px dashed var(--border-strong);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  box-shadow: 0 0 36px rgba(4, 13, 8, 0.85);
}

/* Corner Brackets */
.arwes-corner {
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--accent);
  border-style: solid;
  pointer-events: none;
  opacity: 0.85;
}
.arwes-tl { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.arwes-tr { top: -1px; right: -1px; border-width: 2px 2px 0 0; }
.arwes-bl { bottom: -1px; left: -1px; border-width: 0 0 2px 2px; }
.arwes-br { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }

/* EPOCH HEADER */
.epoch-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  padding-bottom: 24px;
  margin-bottom: 28px;
  border-bottom: 1px dashed var(--border-color);
}

.epoch-meta-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.epoch-roman-badge {
  padding: 3px 9px;
  border-radius: 3px;
  background: var(--accent);
  color: #040d08;
  font-weight: 700;
}

.epoch-chrono-badge {
  padding: 3px 9px;
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  color: var(--accent);
  background: rgba(94, 255, 158, 0.08);
}

.epoch-title {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 3.3vw, 2.85rem);
  font-weight: 400;
  margin: 0 0 14px;
  line-height: 1.12;
  color: var(--text-primary);
}

.epoch-specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(195px, 1fr));
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.spec-box {
  padding: 8px 11px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.32);
}

.spec-label {
  display: block;
  font-size: 9.5px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.spec-val {
  color: var(--text-primary);
  font-weight: 500;
}

/* DRAWILLE 3D UNICODE BRAILLE WIDGET IN EACH EPOCH HEADER */
.braille-widget-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.45);
  min-width: 175px;
}

.braille-stage {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.05;
  letter-spacing: 0;
  color: var(--accent);
  white-space: pre;
  user-select: text;
}

.braille-caption {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--text-muted);
}

/* EPOCH BODY LAYOUT (Story Column + Tufte Sidenotes Column) */
.epoch-body-grid {
  display: grid;
  grid-template-columns: minmax(0, 66ch) 275px;
  gap: 38px;
  align-items: start;
  justify-content: space-between;
}

.epoch-prose {
  font-family: var(--font-mono);
  font-size: calc(var(--story-font-size) - 1.5px);
  line-height: var(--story-line-height);
  color: var(--text-primary);
}

.story-p {
  position: relative;
  margin: 0 0 1.2em;
}

.story-p:first-child::first-letter {
  font-family: var(--font-display);
  float: left;
  font-size: 3.3em;
  line-height: 0.84;
  padding-right: 10px;
  padding-top: 4px;
  color: var(--accent);
}

/* TUFTE SIDENOTES & SPARKLINES (Desktop Right Margin + Mobile Inline Tap-Toggles) */
.epoch-sidenotes-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 68px;
}

.tufte-sidenote {
  padding: 12px 14px;
  border-left: 2px solid var(--accent);
  background: rgba(94, 255, 158, 0.04);
  border-radius: 0 6px 6px 0;
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.sidenote-head {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.sparkline-wrap {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.sparkline-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

.sparkline-svg {
  width: 88px;
  height: 24px;
  overflow: visible;
}

.mobile-sidenote-wrap {
  display: none;
  margin: -0.4em 0 1.2em;
}

.mobile-sidenote-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  background: rgba(94, 255, 158, 0.08);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
}

.mobile-sidenote-body {
  display: none;
  margin-top: 8px;
}

.mobile-sidenote-wrap.open .mobile-sidenote-body {
  display: block;
}

/* INTERACTIVE AC QUESTION & ANSWER TERMINAL AT END OF EACH EPOCH */
.ac-terminal-card {
  margin-top: 28px;
  padding: 20px 22px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: rgba(2, 8, 5, 0.92);
  font-family: var(--font-mono);
}

.ac-term-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px dashed var(--border-color);
  font-size: 11px;
  color: var(--accent);
}

.ac-query-line {
  font-size: 13px;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.ac-query-line strong {
  color: var(--accent-2);
}

.ac-response-box {
  position: relative;
  padding: 14px 16px;
  border-radius: 4px;
  background: rgba(94, 255, 158, 0.08);
  border: 1px solid var(--accent);
  font-size: clamp(14px, 1.8vw, 18px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  overflow: hidden;
}

/* spoilerjs Shimmering Particle Canvas Veil */
.spoiler-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  z-index: 4;
  transition: opacity 0.45s ease;
}

.spoiler-canvas.revealed {
  opacity: 0;
  pointer-events: none;
}

.ac-interactive-row {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ac-custom-input {
  flex: 1;
  min-width: 210px;
  padding: 7px 11px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.55);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
}

.ac-custom-input::placeholder {
  color: var(--text-muted);
}

/* ==========================================================================
   FINALE MONUMENT: "LET THERE BE LIGHT!"
   ========================================================================== */
.genesis-monument {
  margin-top: 72px;
  text-align: center;
}

.genesis-card {
  padding: 64px 32px;
  border-radius: 8px;
  border: 1px dashed var(--accent);
  background:
    radial-gradient(circle at center, rgba(94, 255, 158, 0.16) 0%, rgba(34, 211, 238, 0.08) 45%, rgba(4, 13, 8, 0.96) 100%);
  box-shadow: 0 0 60px var(--accent-glow);
}

.genesis-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

.genesis-quote {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  font-weight: 400;
  margin: 0 0 12px;
}

.let-there-be-light {
  color: #ffffff;
  text-shadow: 0 0 28px var(--accent), 0 0 60px var(--accent-2);
}

.genesis-afterword {
  font-family: var(--font-mono);
  font-style: italic;
  font-size: 20px;
  color: var(--text-secondary);
  margin: 0 0 28px;
}

.genesis-controls {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.genesis-trigger-btn {
  padding: 14px 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 4px;
  border: 1px solid #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #040d08;
  cursor: pointer;
  box-shadow: 0 0 24px var(--accent-glow);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.genesis-trigger-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 0 40px rgba(94, 255, 158, 0.75);
}

/* FOOTER */
.site-footer {
  position: relative;
  z-index: 10;
  border-top: 1px dashed var(--border-color);
  padding: 28px 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  background: rgba(4, 13, 8, 0.92);
}

.footer-inner {
  max-width: 1260px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   RESPONSIVE & PHONE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1220px) {
  .hide-xl {
    display: none !important;
  }
}

@media (max-width: 1080px) {
  .hide-lg {
    display: none !important;
  }
  .epoch-body-grid {
    grid-template-columns: 1fr;
  }
  .epoch-sidenotes-col {
    display: none;
  }
  .mobile-sidenote-wrap {
    display: block;
  }
  .timeline-track {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 860px) {
  /* Single-row sleek Mobile/Tablet Navbar */
  .nav-inner {
    min-height: 48px;
    padding: max(6px, env(safe-area-inset-top)) 12px 6px;
    gap: 8px;
  }

  .brand-pill {
    padding: 6px 10px;
  }

  .brand-title-full {
    display: none;
  }

  .brand-title-short {
    display: inline;
  }

  /* Hide desktop multi-pill bar & desktop telemetry cluster; use unified center trigger + drawer */
  .epoch-pills,
  .telemetry-metrics {
    display: none !important;
  }

  .mobile-status-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex: 1;
    min-width: 0;
    height: 36px;
    padding: 0 11px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    background: rgba(94, 255, 158, 0.05);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    cursor: pointer;
    transition: border-color 0.18s ease, background 0.18s ease;
  }

  .mobile-status-trigger:hover,
  .mobile-status-trigger[aria-expanded="true"] {
    border-color: var(--accent);
    background: rgba(94, 255, 158, 0.12);
  }

  .mst-main {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
    font-weight: 700;
    color: var(--accent);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mst-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent);
    flex-shrink: 0;
  }

  .mst-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    color: var(--text-secondary);
    font-size: 10.5px;
  }

  .mst-chevron {
    font-size: 11px;
    color: var(--accent);
    transition: transform 0.2s ease;
  }

  .mobile-status-trigger[aria-expanded="true"] .mst-chevron {
    transform: rotate(180deg);
  }

  .nav-right {
    gap: 6px;
  }

  .lang-switch {
    height: 36px;
  }

  .lang-btn {
    height: 30px;
    padding: 0 7px;
  }

  .nav-audio-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
  }

  .audio-btn-text {
    display: none;
  }
}

@media (max-width: 768px) {
  .hide-sm,
  .hide-md {
    display: none !important;
  }

  /* STORY STAGE, MASTHEAD & EPOCH CARDS ON PHONE */
  .story-stage {
    padding: 22px 12px 72px;
  }

  .story-masthead {
    padding: 18px 8px 26px;
    margin-bottom: 22px;
  }

  .masthead-kicker {
    font-size: 9.5px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .story-main-title {
    font-size: clamp(2.35rem, 11vw, 3.4rem);
  }

  .story-byline {
    font-size: 11.5px;
    gap: 6px;
    margin-bottom: 20px;
  }

  .cosmic-timeline-card {
    padding: 12px;
  }

  /* Horizontal touch-scroll timeline on phone */
  .timeline-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 8px;
    padding-bottom: 4px;
  }

  .timeline-node {
    flex: 0 0 132px;
    scroll-snap-align: start;
  }

  .epochs-container {
    gap: 32px;
  }

  .epoch-section {
    padding: 20px 15px;
  }

  .epoch-header {
    grid-template-columns: 1fr;
    gap: 14px;
    padding-bottom: 16px;
    margin-bottom: 18px;
  }

  .epoch-specs-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .braille-widget-box {
    flex-direction: row;
    justify-content: space-between;
    padding: 8px 12px;
  }

  .braille-stage {
    font-size: 9px;
  }

  .epoch-prose {
    font-size: 16.5px;
    line-height: 1.68;
  }

  /* 3. AC TERMINAL & INPUTS ON PHONE (16px font prevents iOS Safari auto-zoom) */
  .ac-terminal-card {
    padding: 14px;
  }

  .ac-response-box {
    padding: 12px;
    font-size: 13.5px;
    word-break: break-word;
  }

  .ac-interactive-row {
    flex-direction: column;
  }

  .ac-interactive-row .hud-btn,
  .ac-custom-input {
    width: 100%;
    justify-content: center;
    min-height: 40px;
  }

  .ac-custom-input {
    font-size: 16px !important;
  }

  /* 4. GENESIS MONUMENT & FOOTER ON PHONE */
  .genesis-card {
    padding: 36px 18px;
  }

  .genesis-trigger-btn {
    width: 100%;
    padding: 14px 14px;
    font-size: 12px;
  }

  .site-footer {
    padding: 22px 14px calc(24px + env(safe-area-inset-bottom, 0px));
  }
}