/* ===========================================================================
   Voyager: cinematic scene styles.
   Layout: full-bleed canvas, layered overlays for nav, intro, and side panel.
   =========================================================================== */

#scene-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  display: block;
  cursor: grab;
  /* Prevent the browser from intercepting touch gestures - we handle
     drag/pinch/two-finger swipe ourselves via pointer events. */
  touch-action: none;
}

#scene-canvas.grabbing { cursor: grabbing; }
#scene-canvas.pointing { cursor: pointer; }

/* ---------------------------------------------------------------------------
   Loading screen - branded, with progress line. Fades out as scene appears.
   --------------------------------------------------------------------------- */
#loader {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 1.4s var(--ease-cinematic);
  pointer-events: all;
}

/* When returning from a Visit page, hide the loader's WORDMARK + progress
   but keep the black background showing. The scene fades up from black as
   the camera does a short fly-in, so the transition feels continuous
   instead of "page reload then snap." */
html.returning #loader .loader-inner {
  display: none;
}

html.returning #loader {
  transition: opacity 0.8s var(--ease-cinematic);
}

#loader.fading {
  opacity: 0;
  pointer-events: none;
}

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  text-align: center;
}

.loader-wordmark {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  line-height: 1;
  color: var(--color-text);
  /* Subtle pulsing glow during load */
  animation: loaderPulse 3.4s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { text-shadow: 0 0 18px rgba(125, 211, 252, 0.0); }
  50% { text-shadow: 0 0 24px rgba(125, 211, 252, 0.18); }
}

.loader-tagline {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 1.8rem;
}

.loader-progress {
  width: 220px;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.loader-progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-warm));
  transition: width 0.4s var(--ease-soft);
}

.loader-status {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-top: 0.8rem;
  min-height: 1em;
}

/* ---------------------------------------------------------------------------
   Wordmark / brand title
   --------------------------------------------------------------------------- */
.brand {
  position: fixed;
  top: var(--space-lg);
  left: var(--space-lg);
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 1.4s var(--ease-cinematic), transform 1.4s var(--ease-cinematic);
}

.brand.visible {
  opacity: 1;
  transform: translateY(0);
}

.brand .wordmark {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  line-height: 1;
}

.brand .tagline {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.brand .subline {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--color-text-muted);
  margin-top: 0.55rem;
  letter-spacing: 0.01em;
}

.brand-keys {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.brand-keys li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.brand-keys li span {
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

.brand-keys kbd {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: 0.18rem 0.45rem;
  line-height: 1;
}

/* ---------------------------------------------------------------------------
   Live data ticker - bottom-center strip rotating through real-time facts.
   --------------------------------------------------------------------------- */
.live-ticker {
  position: fixed;
  bottom: var(--space-md, 1.5rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 28;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  max-width: min(680px, calc(100vw - 4rem));
  padding: 0.6rem 1.05rem;
  background: rgba(6, 9, 16, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  transition: opacity 0.25s var(--ease-soft);
  opacity: 1;
}
.live-ticker.fading { opacity: 0; }

.live-ticker-dot {
  flex: 0 0 auto;
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: liveTickerPulse 1.8s ease-in-out infinite;
}
@keyframes liveTickerPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.live-ticker-label {
  flex: 0 0 auto;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-accent);
}
.live-ticker-label[data-kind="history"] { color: rgba(229, 231, 235, 0.95); }
.live-ticker-label[data-kind="upcoming"] { color: var(--color-accent-warm); }

.live-ticker-text {
  flex: 1 1 auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0;
}

/* Hide ticker when overlays / focused mode are active so it doesn't compete
   with other bottom-of-viewport content. */
body:has(.exoplanet-detail.open) .live-ticker,
body:has(.station-tracking-card.open) .live-ticker,
body:has(.missions-dock.open) .live-ticker,
body:has(.starmap-hud.open) .live-ticker,
body:has(.about-overlay.open) .live-ticker,
body:has(.logbook-overlay:not([hidden])) .live-ticker,
body:has(#panel.open) .live-ticker {
  opacity: 0;
  pointer-events: none;
}

/* Wordmark + About row at the top of the brand area. */
.brand-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* About trigger: bare ⓘ icon next to the VOYAGER wordmark. Subtle - doesn't
   read as a primary action, just a "more info" affordance. */
.about-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-text-faint);
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.6;
  transition: color 0.2s var(--ease-soft), opacity 0.2s var(--ease-soft);
}
.about-trigger:hover {
  color: var(--color-accent);
  opacity: 1;
}
.about-trigger-icon {
  font-size: inherit;
  line-height: 1;
}

/* ---------------------------------------------------------------------------
   Top-right utility nav (HUD-style)
   --------------------------------------------------------------------------- */
.hud-nav {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 20;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  transition: opacity 1.4s var(--ease-cinematic),
              right 0.7s var(--ease-cinematic);
}

.hud-nav.visible { opacity: 1; }

/* When the side panel or missions dock is open, slide the HUD nav left so
   it sits beside the panel instead of being covered by it. */
body:has(#panel.open) .hud-nav {
  right: calc(min(440px, 92vw) + var(--space-md));
}

body:has(.missions-dock.open) .hud-nav {
  right: calc(min(380px, 92vw) + var(--space-md));
}

body:has(#panel.open):has(.missions-dock.open) .hud-nav {
  right: calc(min(440px, 92vw) + var(--space-md));
}

.hud-nav button {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: 1px;
  color: var(--color-text-muted);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: all 0.25s var(--ease-soft);
}

.hud-nav button:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
  background: rgba(255, 255, 255, 0.04);
}

.hud-nav button.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Hide the default focus ring on mouse-clicks - it stays visible after a
   button is clicked and gets confused with the .active state. Keyboard
   users (Tab navigation) still see a focus ring via :focus-visible. */
.hud-nav button:focus { outline: none; }
.hud-nav button:focus:not(:focus-visible) { outline: none; box-shadow: none; }
.hud-nav button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------------------
   Bottom HUD: scene status, "click a planet" hint, distance readout
   --------------------------------------------------------------------------- */
.hud-status {
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  opacity: 0;
  transition: opacity 1.4s var(--ease-cinematic);
}

.hud-status.visible { opacity: 1; }

.hud-status .status-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.hud-status .status-value {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text);
  letter-spacing: 0.04em;
}

/* Checkbox-style toggle. Used for filter switches in the HUD.
   Generous hit area + subtle hover state so it's an easy click target
   and doesn't accidentally fall through to the canvas. */
.hud-checkbox {
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.6rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 1px;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  align-self: flex-start;
  transition: color 0.2s var(--ease-soft), background 0.2s var(--ease-soft), border-color 0.2s var(--ease-soft);
}

.hud-checkbox:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--color-border);
}

/* The square indicator: hollow when off, filled with accent when on. */
.hud-checkbox-box {
  width: 12px;
  height: 12px;
  border: 1.5px solid currentColor;
  display: inline-block;
  position: relative;
  transition: background 0.2s var(--ease-soft), border-color 0.2s var(--ease-soft);
  flex-shrink: 0;
}

.hud-checkbox[aria-pressed="true"] {
  color: var(--color-accent);
}

.hud-checkbox[aria-pressed="true"] .hud-checkbox-box {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.hud-hint {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 20;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  opacity: 0;
  transition: opacity 1.4s var(--ease-cinematic);
}

.hud-hint.visible { opacity: 0.7; }

/* ---------------------------------------------------------------------------
   Side panel - slides in from right when a planet is selected
   --------------------------------------------------------------------------- */
#panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: min(440px, 92vw);
  z-index: 40;
  background: var(--color-surface-strong);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-left: 1px solid var(--color-border);
  transform: translateX(100%);
  transition: transform 0.7s var(--ease-cinematic);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#panel.open { transform: translateX(0); }

/* When the in-page logbook overlay is open, fade the side panel out so the
   user only has one info-surface to read at a time. The panel keeps its
   slide-in state internally (.open) and reappears when logbook closes. */
#panel.eclipsed {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s var(--ease-cinematic);
}

.panel-header {
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* ---------------------------------------------------------------------------
   Pause indicator - top center, shown while simulation is paused
   --------------------------------------------------------------------------- */
/* Paused chip - lives inside the .brand block at top-left, right under the
   keyboard shortcut list so it sits next to the [Space] hint that triggers it.
   Inline (not fixed-positioned), so it doesn't compete with the panel.
   Collapsed by default; expands on .visible. */
.hud-paused {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(0, 0, 0, 0.55);
  border-color: var(--color-accent);
  border-style: solid;
  border-radius: 1px;
  backdrop-filter: blur(6px);
  opacity: 0;
  max-height: 0;
  margin: 0;
  padding: 0 0.8rem;
  border-width: 0 1px;
  overflow: hidden;
  transition: opacity 0.3s var(--ease-soft),
              max-height 0.3s var(--ease-soft),
              margin-top 0.3s var(--ease-soft),
              padding 0.3s var(--ease-soft),
              border-width 0.3s var(--ease-soft);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease-soft), transform 0.25s var(--ease-soft);
}

.hud-paused.visible {
  opacity: 1;
  max-height: 36px;
  margin-top: 0.7rem;
  padding: 0.4rem 0.8rem;
  border-width: 1px;
}

.panel-header .panel-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 0.6rem;
}

.panel-header .panel-name {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  letter-spacing: -0.015em;
  margin-bottom: 0.5rem;
}

.panel-header .panel-tagline {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Habitability indicator pill - one of four states. Color communicates the
   verdict at a glance; the existing prose under the Overview tab gives the
   nuance. */
.panel-habitability {
  display: inline-block;
  margin-top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  border-radius: 1px;
  border: 1px solid currentColor;
  background: rgba(255, 255, 255, 0.02);
}

.panel-habitability[hidden] { display: none; }
.panel-habitability[data-status="confirmed"] { color: #4ade80; }
.panel-habitability[data-status="past"]      { color: var(--color-accent-warm); }
.panel-habitability[data-status="possible"]  { color: var(--color-accent); }
.panel-habitability[data-status="hostile"]   { color: var(--color-text-faint); }

.panel-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  padding: 0 var(--space-lg);
  gap: 1.5rem;
}

.panel-tabs button {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 1rem 0;
  color: var(--color-text-faint);
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  transition: color 0.25s var(--ease-soft), border-color 0.25s var(--ease-soft);
}

.panel-tabs button:hover { color: var(--color-text-muted); }

.panel-tabs button.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.panel-tabs button:disabled {
  cursor: not-allowed;
  color: var(--color-text-faint);
  opacity: 0.4;
}

.panel-tabs button:disabled::after {
  content: ' (soon)';
  font-size: 0.6em;
}

/* Mode sub-tabs (only visible when the Conditions tab is active) */
.panel-modes {
  display: none;
  flex-shrink: 0;
  padding: 0.7rem var(--space-lg);
  gap: 0.6rem;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

#panel.show-modes .panel-modes {
  display: flex;
}

.panel-modes .mode-btn {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 1px;
  color: var(--color-text-muted);
  background: transparent;
  cursor: pointer;
  transition: all 0.2s var(--ease-soft);
}

.panel-modes .mode-btn:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.panel-modes .mode-btn.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(125, 211, 252, 0.08);
}

/* Gas composition bar (atmosphere mode). Stacked horizontal segments. */
.gas-bar {
  display: flex;
  width: 100%;
  height: 14px;
  border-radius: 1px;
  overflow: hidden;
  margin: 0.5rem 0 1rem;
  background: rgba(255, 255, 255, 0.05);
}

.gas-bar-segment {
  height: 100%;
  position: relative;
  min-width: 1px;
}

.gas-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.gas-list li {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-text);
}

.gas-swatch {
  width: 12px;
  height: 12px;
  border-radius: 1px;
  flex-shrink: 0;
}

.gas-name {
  display: flex;
  flex-direction: column;
}

.gas-name-primary {
  color: var(--color-text);
}

.gas-name-symbol {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
}

.gas-percent {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  text-align: right;
}

/* Magnetic field strength gauge */
.magnetic-gauge {
  margin: 0.5rem 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.magnetic-gauge-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.magnetic-gauge-value {
  font-family: var(--font-tech);
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--color-accent);
}

.magnetic-gauge-unit {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Interior cross-section: vertical stacked bar with layer labels */
.interior-cross-section {
  display: flex;
  gap: 1rem;
  margin: 0.6rem 0 1rem;
  align-items: stretch;
}

.interior-bar {
  width: 28px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: 1px;
  overflow: hidden;
  flex-shrink: 0;
}

.interior-bar-segment {
  width: 100%;
  min-height: 4px;
}

.interior-legend {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.interior-legend-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.interior-legend-name {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text);
}

.interior-legend-percent {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

.interior-legend-desc {
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Water presence indicator */
.water-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.4rem 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.water-indicator-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.water-indicator-dot.high { background: #4a9be3; }
.water-indicator-dot.medium { background: #7fb5d6; }
.water-indicator-dot.trace { background: #9ca8b3; }
.water-indicator-dot.minimal { background: #6a7480; }
.water-indicator-dot.none { background: #404040; }

.water-locations {
  list-style: none;
  margin: 0.4rem 0 1rem;
  padding: 0;
}

.water-locations li {
  position: relative;
  padding-left: 1rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.water-locations li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
}

.panel-body {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-strong) transparent;
}

.panel-body::-webkit-scrollbar { width: 6px; }
.panel-body::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 3px; }

/* Sticky footer with the Visit CTA - takes the user to a body's Visit page. */
.panel-footer {
  flex-shrink: 0;
  padding: 1rem var(--space-lg);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-strong);
}

.panel-visit-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1px solid var(--color-accent);
  border-radius: 1px;
  background: rgba(125, 211, 252, 0.06);
  color: var(--color-accent);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s var(--ease-soft), color 0.2s var(--ease-soft);
}

.panel-visit-btn:hover {
  background: rgba(125, 211, 252, 0.16);
  color: var(--color-text);
}

.panel-visit-btn[aria-disabled="true"] {
  border-color: var(--color-border);
  color: var(--color-text-faint);
  background: transparent;
  cursor: not-allowed;
  pointer-events: none;
}

.panel-visit-arrow {
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1;
}

.fact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md) var(--space-sm);
  margin-bottom: var(--space-lg);
  padding-top: var(--space-sm);
}

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

.fact .fact-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.fact .fact-value {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}

.fact-section {
  margin-bottom: var(--space-md);
}

.fact-section .fact-section-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.6rem;
}

.fact-section p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  font-weight: 300;
}

.panel-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-text-muted);
  background: rgba(0, 0, 0, 0.4);
  transition: all 0.2s var(--ease-soft);
  z-index: 1;
}

.panel-close:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
  transform: rotate(90deg);
}

/* ---------------------------------------------------------------------------
   Narrow-viewport tweaks - only for genuinely small windows. The panel
   stays as a right-hand sidebar on all but phone-sized screens.
   --------------------------------------------------------------------------- */
@media (max-width: 900px) {
  #panel { width: min(380px, 44vw); }
}

@media (max-width: 540px) {
  .brand { top: var(--space-md); left: var(--space-md); }
  .brand .wordmark { font-size: 1.4rem; }
  .hud-nav { top: var(--space-md); right: var(--space-md); }
  .hud-status, .hud-hint {
    bottom: var(--space-md);
    left: var(--space-md);
    right: var(--space-md);
  }
  .hud-hint { display: none; }
  #panel { width: 100vw; }
  .panel-header .panel-name { font-size: 2.2rem; }
}