*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text-color);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  overflow-x: hidden;
  overflow-y: auto;
  transition: background 0.4s ease, color 0.4s ease;
}

h1 {
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--header-color);
  text-shadow: none;
}

.hidden {
  display: none !important;
}

.fade-in {
  opacity: 1 !important;
}

.fade-out {
  opacity: 0 !important;
}

#confetti-canvas {
  position: fixed;
  pointer-events: none;
  top: 0; left: 0; width: 100vw; height: 100vh;
  z-index: 10001;
  display: none;
}