* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: #000; overflow: hidden; font-family: 'SF Pro Display', -apple-system, system-ui, sans-serif; color: #e5e5ea; }
canvas { display: block; }

#hud {
  position: fixed; bottom: 24px; left: 24px;
  font-size: 11px; letter-spacing: 0.3px; line-height: 1.7;
  pointer-events: none; z-index: 10; color: rgba(255,255,255,0.45);
}
#hud .title { font-size: 15px; color: rgba(255,255,255,0.7); font-weight: 600; letter-spacing: 0.3px; margin-bottom: 6px; }
#hud .stat { color: rgba(255,255,255,0.7); font-weight: 500; }

#timeline {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  z-index: 10; display: flex; align-items: center; gap: 12px;
  background: rgba(20,20,20,0.85); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08); border-radius: 12px;
  padding: 10px 20px; box-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
#timeline .year-display {
  font-size: 28px; font-weight: 700; color: rgba(255,255,255,0.9);
  min-width: 60px; text-align: center; font-variant-numeric: tabular-nums;
}
#timeline .month-display {
  font-size: 12px; color: rgba(255,255,255,0.4); min-width: 30px; text-align: center;
  text-transform: uppercase; letter-spacing: 0.5px;
}
#timeline button {
  background: none; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px;
  cursor: pointer; padding: 6px 12px; font-size: 12px; color: rgba(255,255,255,0.7);
  font-family: inherit; transition: all 0.15s;
}
#timeline button:hover { background: rgba(255,255,255,0.08); }
#timeline button.active { background: rgba(255,255,255,0.9); color: #000; border-color: rgba(255,255,255,0.9); }
#timeline input[type=range] {
  width: 200px; accent-color: rgba(255,255,255,0.7); cursor: pointer;
}

#legend {
  position: fixed; top: 24px; right: 24px;
  font-size: 10px; letter-spacing: 0.3px; line-height: 2.2;
  pointer-events: none; z-index: 10; text-align: right; color: rgba(255,255,255,0.4);
  background: rgba(20,20,20,0.7); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.06); border-radius: 10px;
  padding: 12px 16px;
}
#legend .leg-title { font-size: 11px; color: rgba(255,255,255,0.7); font-weight: 600; margin-bottom: 4px; }
#legend .bar { display: inline-block; width: 24px; height: 4px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

#card {
  position: fixed; pointer-events: none; z-index: 20;
  background: rgba(8,8,16,0.92); border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85); font-size: 10px; padding: 0;
  border-radius: 10px; display: none; letter-spacing: 0.2px;
  backdrop-filter: blur(12px); width: 260px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  overflow: hidden;
}
#card .card-header {
  padding: 12px 14px 10px; border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
}
#card .card-city { font-size: 13px; font-weight: 600; letter-spacing: 0.3px; }
#card .card-country { color: rgba(255,255,255,0.35); font-size: 9px; }
#card .card-perf {
  font-size: 13px; font-weight: 700; font-variant-numeric: tabular-nums;
}
#card .card-body { padding: 10px 14px; }
#card .card-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 3px 0; border-bottom: 1px solid rgba(255,255,255,0.04);
}
#card .card-row:last-child { border-bottom: none; }
#card .card-label { color: rgba(255,255,255,0.35); font-size: 9px; text-transform: uppercase; letter-spacing: 0.4px; }
#card .card-value { color: rgba(255,255,255,0.85); font-size: 11px; font-weight: 500; }
#card .card-bar-wrap { width: 100%; height: 4px; background: rgba(255,255,255,0.06); border-radius: 2px; margin: 8px 0 4px; }
#card .card-bar { height: 100%; border-radius: 2px; transition: width 0.3s; }
#card .card-flows { padding: 8px 14px 12px; border-top: 1px solid rgba(255,255,255,0.06); }
#card .card-flows-title { color: rgba(255,255,255,0.3); font-size: 8px; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 5px; }
#card .card-flow-item { color: rgba(255,255,255,0.5); font-size: 9px; padding: 1px 0; }
#card .card-flow-item .arrow { color: rgba(255,255,255,0.3); margin: 0 4px; }

#loading {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  color: rgba(255,180,80,0.6); font-size: 12px; letter-spacing: 1px; z-index: 100;
}

/* External light-mode overrides */
body.light-mode {
  background: #dbe5f0;
  color: #1f2937;
}

body.light-mode #timeline {
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(15,23,42,0.16);
  box-shadow: 0 6px 20px rgba(15,23,42,0.12);
}

body.light-mode #legend,
body.light-mode #card {
  background: rgba(255,255,255,0.92);
  border-color: rgba(15,23,42,0.14);
}