*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --bg:      #f0f2f5;
  --surface: #ffffff;
  --border:  #dde1e7;

  --text:    #374151;
  --text-dim:#9ca3af;
  --text-hi: #111827;

  --accent:  #2563eb;

  --sans: 'Poppins', system-ui, sans-serif;

  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100svh;
}

.tooltip-floating {
  position: fixed;
  z-index: 9999;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 400;
  white-space: nowrap;
  padding: 0.45em 0.9em;
  border-radius: 8px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.tooltip-floating::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--border);
}