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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;

  --red: 0deg 81% 54%;
  --text-red: 0deg 95% 40%;
  --blue: hsl(174, 62%, 47%);
  --light-red: hsla(var(--red) / 0.267);
  --bg: hsl(150, 8%, 95%);
  --text: hsl(207, 95%, 8%);

  --shadow-color: 174deg 64% 30%;
  --shadow-elevation-low: 0.6px 1px 1.3px hsl(var(--shadow-color) / 0.28),
    0.9px 1.6px 2.1px -1.2px hsl(var(--shadow-color) / 0.28),
    2.1px 3.7px 4.8px -2.5px hsl(var(--shadow-color) / 0.28);
  --shadow-elevation-medium: 0.3px 0.5px 0.7px hsl(var(--shadow-color) / 0.3),
    0.8px 1.5px 1.9px -0.8px hsl(var(--shadow-color) / 0.3),
    1.9px 3.8px 4.8px -1.7px hsl(var(--shadow-color) / 0.3),
    4.6px 9.2px 11.6px -2.5px hsl(var(--shadow-color) / 0.3);
  --shadow-elevation-high: 0.3px 0.5px 0.7px hsl(var(--shadow-color) / 0.28),
    1.3px 2.5px 3.2px -0.4px hsl(var(--shadow-color) / 0.28),
    2.3px 4.6px 5.8px -0.7px hsl(var(--shadow-color) / 0.28),
    3.7px 7.5px 9.4px -1.1px hsl(var(--shadow-color) / 0.28),
    6px 11.9px 15px -1.4px hsl(var(--shadow-color) / 0.28),
    9.3px 18.6px 23.4px -1.8px hsl(var(--shadow-color) / 0.28),
    14.1px 28.2px 35.5px -2.1px hsl(var(--shadow-color) / 0.28),
    20.8px 41.5px 52.2px -2.5px hsl(var(--shadow-color) / 0.28);
}

html,
body {
  height: 100%;
}

body {
  line-height: 1.5;
  background: var(--bg);
  font-family: Georgia, Times, 'Times New Roman', serif;
  color: var(--text);
}

a {
  text-decoration: none;
  color: hsl(var(--text-red));
}

a:not(.no-underline):hover {
  text-decoration: underline;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
  border-radius: 7px;
  padding: 0.5ch;
  border: 0;
  background: var(--bg);
  font-size: 1.125rem;
}

input,
button:not(:disabled),
textarea,
select {
  box-shadow: var(--shadow-elevation-low);
}

input:focus,
textarea:focus {
  box-shadow: var(--shadow-elevation-medium);
}

button {
  padding: 1ch 2ch;
  cursor: pointer;
  transition: box-shadow 0.2s;
  color: var(--text);
}

button:not(:disabled):hover {
  box-shadow: var(--shadow-elevation-medium);
}

button:not(:disabled):active {
  box-shadow: var(--shadow-elevation-low);
}

button:disabled {
  cursor: default;
}

.img-btn:not(:disabled) {
  background: transparent;
  padding: 0;
  box-shadow: none;
}

.img-btn:not(:disabled):hover {
  box-shadow: none;
}

.img-btn svg {
  max-height: 100%;
}

h1 {
  text-align: center;
  font-size: 3em;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

p,
ol,
ul {
  font-size: 1.125rem;
}

figcaption {
  font-style: italic;
}

.spacer {
  height: 6em;
}

.center {
  text-align: center;
}

code a {
  color: var(--bg);
  text-decoration: underline;
}