* {
  transition: all 0.2s ease-in-out;
  font-family: 'Space Mono', monospace;
  box-sizing: border-box;
  text-decoration: none;
  list-style: none;
  margin: 0;
  padding: 0;
}

:root {
  scroll-behavior: smooth;
  font-size: 16px;

  /* Typography */
  --h1: 1.625rem;
  --h1-lh: 38px;

  --h2: 1.375rem;
  --h2-lh: 33px;

  --h3: 1rem;
  --h3-lh: 24px;

  --h4: 0.813rem;
  --h4-lh: 20px;

  --body: 0.938rem;
  --body-lh: 25px;

  --body-s: 0.813rem;
  --body-s-lh: 18px;

  /* Other */
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--bg);
  min-height: 100vh;
  padding: 75px 96px;

  /* Lightmode */
  --primary: #0079ff;
  --primary-hover: #60abff;

  --txt-high-contrast: #2b3442;
  --txt-mid-contrast: #4b6a9b;
  --txt-low-contrast: #697c9a;

  --txt-search: #222731;
  --txt-search-placeholder: #4b6a9b;

  --bg: #f6f8ff;
  --bg-secondary: #fefefe;

  --theme-switch-btn-hover: #222731;

  /* Neutral */
  --error: #f74646;
}

body.dark-theme {
  background-color: var(--bg);

  /* Darkmode */
  --primary: #0079ff;
  --primary-hover: #60abff;

  --txt-high-contrast: #fff;
  --txt-mid-contrast: #ffff;
  --txt-low-contrast: #fff;

  --txt-search: #fff;
  --txt-search-placeholder: #fff;

  --bg: #141d2f;
  --bg-secondary: #1e2a47;

  --theme-switch-btn-hover: #90a4d4;

  /* Neutral */
  --error: #f74646;
}

.container {
  margin: 0 auto;
  max-width: 730px;
  width: 100%;
}

h1 {
  font-size: var(--h1);
  line-height: var(--h1-lh);
  font-weight: 700;
}

h2 {
  font-size: var(--h2);
  line-height: var(--h2-lh);
  font-weight: 700;
}

h3 {
  font-size: var(--h3);
  line-height: var(--h3-lh);
  font-weight: 400;
}

h4 {
  font-size: var(--h4);
  line-height: var(--h4-lh);
  font-weight: 400;
}

.body {
  font-size: var(--body);
  line-height: var(--body-lh);
  font-weight: 400;
}

.body-s {
  font-size: var(--body-s);
  line-height: var(--body-s-lh);
}

.hidden {
  display: none;
}

button {
  cursor: pointer;
  outline: none;
  background: none;
  border: none;
}

input {
  border: none;
  background: none;
  outline: none;
}

button:focus,
input:focus,
a:focus {
  outline: dotted #697c9a 1.75px;
}

body.dark-theme button:focus,
body.dark-theme input:focus,
body.dark-theme a:focus {
  outline: dotted #90a4d4 1.75px;
}

.opacity-75 {
  opacity: 0.75;
}

.opacity-50 {
  opacity: 0.5;
}

@media (max-width: 650px) {
  :root {
    /* Typography */
    --h1: 1rem;
    --h1-lh: 24px;

    --h2: 1rem;
    --h2-lh: 24px;

    --h3: 0.813rem;
    --h3-lh: 19px;

    --h4: 0.688rem;
    --h4-lh: 16px;

    --body: 0.813rem;
    --body-lh: 25px;
  }

  body {
    padding: 32px 24px 80px 24px;
  }
}