@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500&display=swap');

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-body-size);
  font-weight: var(--font-body-weight);
  line-height: var(--font-body-lh);
  color: var(--color-dark);
  background-color: var(--color-bg-page);
  width: 100%;
  max-width: var(--page-max-width);
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.page--primary {
  background-color: var(--color-primary);
}

.page--white {
  background-color: var(--color-bg-page);
}

.content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  padding: var(--content-padding) var(--content-padding) var(--space-xl);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Landing page */
.page--landing {
  align-items: center;
  justify-content: center;
  padding: var(--content-padding);
  -webkit-tap-highlight-color: transparent;
}

.landing__tagline {
  width: 100%;
  max-width: 310px;
  font-size: var(--font-h2-size);
  font-weight: var(--font-h2-weight);
  line-height: var(--font-h2-lh);
  color: var(--color-dark);
}

/* Story page */
.page--story {
  background-color: var(--color-bg-component);
  padding: var(--space-2xl) var(--content-padding) var(--space-xl);
  gap: var(--space-2xl);
}

.story__actions {
  display: flex;
  justify-content: center;
  width: 100%;
}

.story__actions .btn {
  max-width: 310px;
}

/* Usage page */
.page--usage {
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--content-padding);
}

.usage__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: 310px;
  width: 100%;
}

.usage__question {
  font-size: var(--font-title-xl-size);
  font-weight: var(--font-title-xl-weight);
  line-height: var(--font-title-xl-lh);
  color: var(--color-dark);
}

.usage__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Scenarios page */
.page--scenarios {
  padding: var(--space-2xl) var(--content-padding);
  gap: var(--space-xl);
  align-items: center;
}

.scenarios__title {
  font-size: var(--font-h1-size);
  font-weight: var(--font-h1-weight);
  line-height: var(--font-h1-lh);
  color: var(--color-secondary);
  text-align: center;
}