:root{
  --void:#020617;
  --panel:#0b1220;
  --panel-2:#0b1424;
  --line:rgba(148,163,184,0.18);
  --line-bright:rgba(148,163,184,0.35);
  --text:#e5e7eb;
  --muted:#94a3b8;
  --accent:#38bdf8;
  --core:#fb7185;
  --signal:#34d399;
  --display:'Space Grotesk', system-ui, sans-serif;
  --mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

*{
  box-sizing:border-box;
}

html,body{
  margin:0;
  padding:0;
  width:100%;
  height:100%;
  background:var(--void);
  color:var(--text);
  font-family:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow:hidden;
}

body{
  display:flex;
  flex-direction:column;
}

.page-shell{
  flex:1;
  display:grid;
  grid-template-columns:minmax(0, 1.5fr) 340px;
  gap:0.75rem;
  padding:0.75rem;
}

/* Layout columns */

.main-panel{
  display:flex;
  flex-direction:column;
  min-height:0;
}

.info-panel{
  display:flex;
  flex-direction:column;
  gap:0.6rem;
  min-height:0;
  overflow-y:auto;
  padding-right:0.1rem;
}

.info-panel::-webkit-scrollbar{
  width:6px;
}
.info-panel::-webkit-scrollbar-thumb{
  background:rgba(148,163,184,0.4);
  border-radius:99px;
}

/* Globe container */

.globe-shell{
  position:relative;
  flex:1;
  min-height:0;
  border-radius:18px;
  overflow:hidden;
  background:radial-gradient(circle at 25% 0%, #1e293b 0%, #020617 55%, #000 100%);
  box-shadow:0 30px 60px rgba(0,0,0,0.7), inset 0 0 0 1px var(--line);
}

.globe-viz{
  width:100%;
  height:100%;
  cursor:grab;
  user-select:none;
  touch-action:none;
}
.globe-viz:active{
  cursor:grabbing;
}

/* Bottom HUD */

.globe-hud-bottom{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:0.5rem 0.8rem 0.55rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:0.6rem;
  font-family:var(--mono);
  font-size:0.7rem;
  color:var(--muted);
  background:linear-gradient(to top, rgba(2,6,23,0.95), transparent);
  pointer-events:none;
}

.hud-hint{
  flex:1;
  text-align:center;
}

/* Loading tag */

.hud-pill{
  font-family:var(--mono);
  font-size:0.68rem;
  color:var(--muted);
  opacity:0;
  transition:opacity 0.25s ease;
}

#loadingTag.show{
  opacity:1;
}

/* Flat map card */

.flat-map-card{
  position:absolute;
  right:0.8rem;
  bottom:3rem;
  width:270px;
  border-radius:14px;
  overflow:hidden;
  background:#020617;
  box-shadow:
    0 18px 40px rgba(15,23,42,0.9),
    0 0 0 1px var(--line);
}

#flatMapCanvas{
  display:block;
  width:100%;
  height:150px;
  background:#000;
}

/* Cards */

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  padding:0.8rem 0.9rem;
}

.card.subtle{
  background:radial-gradient(circle at top, rgba(30,64,175,0.5), rgba(15,23,42,0.97));
  border-color:rgba(30,64,175,0.7);
}

/* Typography */

.title{
  margin:0;
  font-family:var(--display);
  font-weight:600;
  font-size:1.1rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:#e2e8f0;
}

.subtitle{
  margin:0.25rem 0 0.7rem;
  font-size:0.8rem;
  color:var(--muted);
}

.section-heading{
  margin:0 0 0.5rem;
  font-family:var(--display);
  font-size:0.82rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:#bfdbfe;
}

.hud-copy{
  margin:0.6rem 0 0;
  font-size:0.74rem;
  line-height:1.5;
  color:#64748b;
}
.hud-copy.small{
  font-size:0.72rem;
}
.hud-copy.tiny{
  font-size:0.7rem;
}

/* ---- Coordinate blocks ---- */

.coords-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0.5rem 0.7rem;
  margin-bottom:0.6rem;
}

.coord-block{
  padding:0.55rem 0.65rem 0.6rem;
  border-radius:10px;
  background:linear-gradient(135deg, rgba(15,23,42,0.98), rgba(15,23,42,0.9));
  border:1px solid rgba(148,163,184,0.35);
  min-width:0;
}

.coord-label{
  font-size:0.66rem;
  text-transform:uppercase;
  letter-spacing:0.1em;
  color:var(--muted);
  margin-bottom:0.25rem;
}

.coord-value{
  display:flex;
  flex-direction:column;
  gap:0.06rem;
  min-width:0;
}

/* Two-line coordinate display injected via JS */
.coord-lat{
  font-family:var(--mono);
  font-size:0.88rem;
  font-weight:500;
  color:#e5e7eb;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.coord-lng{
  font-family:var(--mono);
  font-size:0.82rem;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* Location label shown when a named point is active */
.location-label{
  font-family:var(--display);
  font-size:0.72rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:#60a5fa;
  margin-bottom:0.45rem;
  min-height:1em;
}

.dist-panel{
  margin-top:0.4rem;
  padding:0.55rem 0.65rem 0.6rem;
  border-radius:10px;
  background:radial-gradient(circle at top left, #020617, #020617);
  border:1px solid var(--line);
}

.dist-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:0.6rem;
  font-size:0.76rem;
  color:var(--muted);
  padding:0.18rem 0;
}

.dist-label{
  flex:1;
}

.dist-value{
  font-family:var(--mono);
  font-size:0.8rem;
  color:#e5e7eb;
  white-space:nowrap;
}

.dist-row + .dist-row{
  border-top:1px dashed rgba(148,163,184,0.2);
  margin-top:0.2rem;
  padding-top:0.25rem;
}

.dist-note{
  margin:0.5rem 0 0;
  font-size:0.7rem;
  line-height:1.45;
  color:#6b7280;
}

/* ---- Overlay toggles ---- */

.toggle-list{
  display:flex;
  flex-direction:column;
  gap:0.25rem;
}

.toggle-row{
  width:100%;
  border:none;
  background:transparent;
  padding:0.2rem 0.1rem;
  display:flex;
  align-items:flex-start;
  gap:0.5rem;
  cursor:pointer;
  text-align:left;
  border-radius:10px;
  transition:background 0.12s ease-out;
}

.toggle-row:hover{
  background:rgba(15,23,42,0.7);
}

.toggle-indicator{
  width:14px;
  height:14px;
  border-radius:999px;
  margin-top:0.18rem;
  flex-shrink:0;
  box-shadow:0 0 0 1px rgba(15,23,42,0.95), 0 0 10px rgba(15,23,42,0.9);
  transition:background 0.18s ease-out;
}

.toggle-row.on .toggle-indicator.core{
  background:radial-gradient(circle at 30% 20%, #fecaca, var(--core));
}
.toggle-row.on .toggle-indicator.surface{
  background:radial-gradient(circle at 30% 20%, #fef3c7, #f59e0b);
}
.toggle-row.on .toggle-indicator.meridian{
  background:radial-gradient(circle at 30% 20%, #bfdbfe, var(--accent));
}
.toggle-row.on .toggle-indicator.parallel{
  background:radial-gradient(circle at 30% 20%, #bbf7d0, var(--signal));
}

.toggle-row:not(.on) .toggle-indicator{
  background:#020617;
  box-shadow:0 0 0 1px rgba(30,64,175,0.7);
}

.toggle-text{
  display:flex;
  flex-direction:column;
  gap:0.08rem;
  flex:1;
  min-width:0;
  font-size:0.78rem;
  color:var(--text);
}

.toggle-sub{
  font-size:0.7rem;
  color:var(--muted);
}

/* Pill switch on right — shared by all toggles incl. solid mode */

.row-switch{
  margin-left:auto;
  width:30px;
  height:16px;
  border-radius:999px;
  background:rgba(75,85,99,0.7);
  position:relative;
  flex-shrink:0;
  margin-top:0.15rem;
  pointer-events:none;
  transition:background 0.18s ease-out;
}

.row-switch-knob{
  position:absolute;
  top:1px;
  left:1px;
  width:14px;
  height:14px;
  border-radius:999px;
  background:#020617;
  box-shadow:0 0 0 1px rgba(15,23,42,0.85);
  transition:transform 0.18s ease-out, background 0.18s ease-out;
}

.toggle-row.on .row-switch{
  background:linear-gradient(135deg, #22c55e, #0ea5e9);
}
.toggle-row.on .row-switch-knob{
  transform:translateX(14px);
  background:#e5f2ff;
}

/* ---- Presets & tour ---- */

.preset-row{
  display:flex;
  flex-wrap:wrap;
  gap:0.3rem;
  margin-bottom:0.3rem;
}

.preset-chip{
  border-radius:999px;
  border:1px solid rgba(148,163,184,0.5);
  background:rgba(15,23,42,0.96);
  color:var(--text);
  font-size:0.72rem;
  padding:0.23rem 0.6rem;
  cursor:pointer;
  white-space:nowrap;
  transition:background 0.15s ease-out, border-color 0.15s ease-out, transform 0.08s ease-out;
}

.preset-chip:hover{
  background:rgba(56,189,248,0.18);
  border-color:rgba(56,189,248,0.7);
  transform:translateY(-1px);
}
.preset-chip:active{
  transform:translateY(0);
}

.tour-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:0.4rem;
  margin-bottom:0.3rem;
}

.tour-btn{
  border-radius:999px;
  border:1px solid rgba(56,189,248,0.6);
  background:rgba(15,23,42,0.96);
  color:#e0f2fe;
  font-size:0.7rem;
  padding:0.22rem 0.7rem;
  cursor:pointer;
  font-family:var(--mono);
  letter-spacing:0.08em;
  text-transform:uppercase;
  transition:background 0.15s ease-out, border-color 0.15s ease-out, transform 0.08s ease-out;
  white-space:nowrap;
}

.tour-btn:hover{
  background:rgba(56,189,248,0.18);
  border-color:#38bdf8;
  transform:translateY(-1px);
}
.tour-btn:active{
  transform:translateY(0);
}

/* Tour status — supports innerHTML with <strong> / <em> */
.tour-status{
  font-family:var(--mono);
  font-size:0.64rem;
  color:#6b7280;
  flex:1;
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.tour-status strong{
  color:#94a3b8;
  font-weight:500;
}

.tour-status em{
  font-style:normal;
  color:#60a5fa;
}

/* Links */

.card.subtle a{
  color:#e2e8f0;
  text-decoration:underline;
  text-decoration-style:dotted;
}

/* ─────────────────────────────────────────────────────────────
   Responsive — tablet ≤ 880px
   Stack globe on top, info panel below and scrollable.
   Key fix: use 1fr for the info row so it has a DEFINED height,
   which is what lets overflow-y: auto actually scroll.
───────────────────────────────────────────────────────────── */
@media (max-width: 880px){

  .page-shell{
    grid-template-columns: 1fr;
    /* Globe: at least 220px, at most 42% of viewport height.
       Info panel: fills every remaining pixel. */
    grid-template-rows: minmax(220px, 42vh) 1fr;
    padding: 0.5rem;
    gap: 0.5rem;
    /* Prevent the grid from expanding beyond the viewport —
       without this, auto rows would push content off-screen. */
    overflow: hidden;
  }

  .globe-shell{
    border-radius: 14px;
  }

  .info-panel{
    /* Remove the 50vh hard-cap hack — the grid row defines height now */
    max-height: none;
    overflow-y: auto;
    /* Smooth momentum scrolling on iOS */
    -webkit-overflow-scrolling: touch;
    /* Extra room at the bottom for the iPhone home indicator */
    padding-bottom: env(safe-area-inset-bottom, 0.5rem);
    /* Hairline scrollbar on WebKit */
    padding-right: 0.05rem;
  }

  .flat-map-card{
    right: 0.5rem;
    bottom: 2.8rem;
    width: 220px;
  }

  #flatMapCanvas{
    height: 120px;
  }
}

/* ─────────────────────────────────────────────────────────────
   Phone ≤ 540px — hide the flat map (too small to be useful),
   tighten padding, and ensure all tap targets are reachable.
───────────────────────────────────────────────────────────── */
@media (max-width: 540px){

  .flat-map-card{
    display: none;
  }

  .page-shell{
    padding: 0.4rem;
    gap: 0.4rem;
    grid-template-rows: minmax(200px, 38vh) 1fr;
  }

  .card{
    padding: 0.65rem 0.75rem;
  }

  .title{
    font-size: 1rem;
  }

  .section-heading{
    font-size: 0.78rem;
  }

  .coords-grid{
    gap: 0.4rem 0.45rem;
  }

  .coord-lat{ font-size: 0.82rem; }
  .coord-lng{ font-size: 0.76rem; }

  /* Larger tap targets for preset chips */
  .preset-chip{
    padding: 0.32rem 0.65rem;
    font-size: 0.74rem;
  }

  /* Larger tap targets for toggle rows */
  .toggle-row{
    padding: 0.3rem 0.1rem;
    min-height: 44px;
    align-items: center;
  }

  /* Tour button tap target */
  .tour-btn{
    padding: 0.32rem 0.8rem;
    font-size: 0.72rem;
  }

  .dist-note{
    font-size: 0.68rem;
  }
}

/* ─────────────────────────────────────────────────────────────
   Very small phones ≤ 375px (iPhone SE etc.)
───────────────────────────────────────────────────────────── */
@media (max-width: 375px){

  .page-shell{
    padding: 0.3rem;
    grid-template-rows: minmax(180px, 35vh) 1fr;
  }

  .globe-hud-bottom{
    font-size: 0.62rem;
    padding: 0.4rem 0.6rem 0.45rem;
  }

  .hud-hint{
    display: none;
  }
}