:root {
  /* --font-size: 18px; */
  --font-size: medium;
  --font-serif:
    'Cambria',
    'Cochin',
    'Georgia',
    'Times',
    'Times New Roman',
    serif;
  --font-sans-serif:
    'Trebuchet MS',
    'Verdana',
    sans-serif;
  --font-color: #454545;
  --link-color: #0077aa;
  --link-color-hover: #c0392b;
  --success-color: #006600;
  --not-success-color: #cc7a00;
  --error-color: #c0392b;
  --page-width: 400px;
  --input-border-width: 1px;
  --input-padding: 2px;
  --form-element-width: 100%;
  --select-padding: 2px;
}

html {
  margin-left: calc(100vw - 100%);
}

body {
  font-family: var(--font-sans-serif);
  font-size: var(--font-size);
  color: var(--font-color);
  margin: 0;
}

header {
  margin: 0 auto;
}

main {
  margin: 0 auto;
}

footer {
  margin: 0 auto;
  text-align: center;
  opacity: 0.8;
  font-size: smaller;
  margin-top: 40px;
}

a {
  color: var(--link-color);
  text-decoration: none;
  font-weight: bold;
}

a:hover {
  color: var(--link-color-hover);
  text-decoration: none;
}

h1, h2 {
  font-family: var(--font-serif);
}

p.success {
  color: var(--success-color);
}

p.success::before {
  content: "\2713";
}

p.not-success {
  color: var(--not-success-color);
}

p.not-success::before {
  content: "\26A0";
}

p.error {
  color: var(--error-color);
}

p.error::before {
  content: "\2715";
}

p.note {
  font-size: smaller;
}

.menu-image-link {
  color: var(--font-color);
  width: 100%;
  display: block;
  text-align: center;
}

.menu-block-link {
  color: var(--font-color);
  width: 100%;
  display: block;
  padding: 10px 0 10px 0;
  margin-bottom: 10px;
  text-align: center;
}

.menu-block-link-colored {
  background: #EEEEEE;
  border-radius: 5px;
}

/* TODO note begin */
/* this could go to a separate form.css */
label {
  font-weight: bold;
  margin-bottom: 2px;
}

label, input, select, textarea {
  display: block;
  width: var(--form-element-width);
}

/* TODO font relative size */
input, select {
  height: 22px;
}

textarea {
  min-width: calc(var(--form-element-width)
    - 2 * var(--input-border-width)
    - 2 * var(--input-padding));
  max-width: calc(var(--form-element-width)
    - 2 * var(--input-border-width)
    - 2 * var(--input-padding));
}

textarea {
  min-height: 80px;
}

input, textarea {
  border: var(--input-border-width) solid lightgray;
  border-radius: 2px;
  width: calc(var(--form-element-width)
    - 2 * var(--input-border-width)
    - 2 * var(--input-padding));
  padding: 0 2px 0 2px;
}

select {
  border: var(--input-border-width) solid lightgray;
  border-radius: 2px;
  width: var(--form-element-width);
}

input, select, textarea {
  margin-bottom: 10px;
}

label.inline-label {
  width: inherit;
  display: inline-block;
  margin: 0;
  vertical-align: middle;
  margin-bottom: 10px;
}

input[type=checkbox] {
  width: inherit;
  display: inline-block;
  margin: 0 5px 10px 0;
  vertical-align: middle;
}

input[type=submit] {
  height: 41px;
  cursor: pointer;
}

input.invalid {
  background-color: lightpink;
}

hr {
  margin: 5px 0 15px 0;
}

form p {
  margin: 15px 0 5px 0;
}

.error-text {
  width: 100%;
  color: red;
  font-size: 14px;
  margin: 5px 0 10px 0;
}

.required-label::after {
  content: "*";
}

.form-row img {
  font-display: inline-block;
  vertical-align: middle;
}

.form-row {
  margin-bottom: 10px;
}

.form-row .pseudo-button {
  font-display: inline-block;
  vertical-align: middle;
}

.form-row-about {
  margin: 0 auto 10px auto;
  border-left: 1px solid var(--font-color);
  border-right: 1px solid var(--font-color);
  border-bottom: 1px solid var(--font-color);
  border-radius: 5px;
  padding: 5px;
  background: #EEEEEE;
}

.form-row-about p {
  margin: 5px;
}

.pseudo-button {
  display: inline-block;
  color: var(--link-color);
  font-weight: bold;
  cursor: pointer;
  /* margin: auto 5px auto 5px; */
  margin: 0 5px 5px 5px;
}

.pseudo-button:hover {
  color: var(--link-color-hover);
}

.invisible {
  display: none;
}

/* note end */

@media screen and (min-width: 400px) {
  header {
    width: var(--page-width);
  }

  main {
    width: var(--page-width);
  }

  footer {
    width: var(--page-width);
  }
}

@media screen and (max-width: 400px) {
  header {
    width: 95%;
  }

  main {
    width: 95%;
  }

  footer {
    width: 95%;
  }
}