@font-face {
    font-family: 'Helvetica Neue';
    src: url('../fonts/HelveticaNeue-Bold.woff2') format('woff2'),
        url('../fonts/HelveticaNeue-Bold.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Helvetica Neue';
    src: url('../fonts/HelveticaNeue-Italic.woff2') format('woff2'),
        url('../fonts/HelveticaNeue-Italic.woff') format('woff');
    font-weight: normal;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Helvetica Neue';
    src: url('../fonts/HelveticaNeue.woff2') format('woff2'),
        url('../fonts/HelveticaNeue.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Helvetica Neue';
    src: url('../fonts/HelveticaNeue-Medium.woff2') format('woff2'),
        url('../fonts/HelveticaNeue-Medium.woff') format('woff');
    font-weight: medium;
    font-style: normal;
    font-display: swap;
}

:root {
  --page-padding: clamp(20px, 4vw, 48px);
  --font-size: clamp(1.2rem, 1.65vw, 1.7rem);
  --line-height: 1.681;
  --text-color: #111;
  --untyped-color: #c7c7c7;
  --error-color: #c0392b;
  --error-bg: rgba(192, 57, 43, 0.12);
  --bg-color: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--bg-color);
  color: var(--text-color);
  -ms-overflow-style: none;  /* Internet Explorer 10+ */
  scrollbar-width: none;  /* Firefox, Safari 18.2+, Chromium 121+ */
}

.container::-webkit-scrollbar { 
    display: none;  /* Older Safari and Chromium */
}

body {
  min-height: 100vh;
}

main {
  width: 100%;
  min-height: 100vh;
  padding: var(--page-padding);
  display: flex;
  align-items: stretch;
}

#text,
.page-text {
  width: 100%;
  margin: 0;
  padding: 0;
  text-transform: uppercase;
  text-align: justify;
  text-align-last: justify;
  text-justify: inter-word;
  line-height: var(--line-height);
  font-size: var(--font-size);
  font-family: 'Helvetica Neue';
  font-weight: medium;
  letter-spacing: 0.07em;
  hyphens: auto;
  overflow-wrap: anywhere;
}

#text span {
  color: var(--untyped-color);
}

#text span.correct,
.correct {
  color: var(--text-color);
}

#text span.incorrect,
.inserted {
  color: var(--error-color);
  background: var(--error-bg);
}

#text span.current,
.current {
  background: var(--text-color);
  color: white;
}

#text a.hyperlink-link,
#text span.expand-link,
#text span.jump-link {
  text-decoration: underline;
  color: blue;
  cursor: pointer;
}

#text a.hyperlink-link {
  color: blue;
}

.expand-panel {
  display: block;
  width: 100%;
  margin: 0.75rem 0 1rem;
  padding-top: 0.75rem;
}

.expand-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.expand-gallery img {
  display: block;
  max-width: min(320px, 100%);
  height: auto;
}

#typingInput {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}