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

html,
body {
  margin: 0;
  padding: 0;
}

body.app-body {
  font-family: var(--font-sans);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

.app-scroll {
  flex: 1;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.toast {
  position: absolute;
  left: 50%;
  bottom: 72px;
  transform: translateX(-50%) translateY(8px);
  max-width: calc(100% - 32px);
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  font-size: 14px;
  line-height: 1.4;
  border-radius: var(--radius-btn);
  text-align: center;
  pointer-events: none;
  opacity: 0;
  z-index: 100;
  transition: opacity var(--dur-fast) var(--ease-soft),
    transform var(--dur-fast) var(--ease-soft);
}

.toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.modal-mask {
  position: absolute;
  inset: 0;
  z-index: 90;
  background: rgba(0, 0, 0, 0.45);
}