:root {
  --vt-c-white: #ffffff;
  --vt-c-white-soft: #f8f8f8;
  --vt-c-white-mute: #f2f2f2;

  --vt-c-black: #181818;
  --vt-c-black-soft: #222222;
  --vt-c-black-mute: #282828;

  --vt-c-indigo: #2c3e50;
  --vt-c-red: rgb(255, 76, 76);
  --vt-c-blue: #3c8bca;
  --vt-c-orange: #ffdea6;
  --vt-c-green-light-1: #00db9d;
  --vt-c-green-light-2: #009369;
  --vt-c-green-dark-1: #00db9d;
  --vt-c-green-dark-2: #009369;

  --vt-c-divider-light-1: rgba(60, 60, 60, 0.29);
  --vt-c-divider-light-2: rgba(60, 60, 60, 0.12);
  --vt-c-divider-dark-1: rgba(84, 84, 84, 0.65);
  --vt-c-divider-dark-2: rgba(84, 84, 84, 0.48);

  --vt-c-text-light-1: var(--vt-c-indigo);
  --vt-c-text-light-2: rgba(60, 60, 60, 0.66);
  --vt-c-text-dark-1: var(--vt-c-white);
  --vt-c-text-dark-2: rgba(235, 235, 235, 0.64);
}

/* semantic color variables for this project */
:root {
  --theme-primary-color: var(--vt-c-green-light-2);
  --theme-secondary-color: var(--vt-c-green-light-1);

  --color-background: var(--vt-c-white);
  --color-background-soft: var(--vt-c-white-soft);
  --color-background-mute: var(--vt-c-white-mute);

  --color-border: var(--vt-c-divider-light-2);
  --color-border-hover: var(--vt-c-divider-light-1);

  --color-heading: var(--vt-c-text-light-1);
  --color-text: var(--vt-c-text-light-1);
  --color-text-warning: var(--vt-c-orange);
  --color-text-error: var(--vt-c-red);

  --section-gap: 160px;
  --border-radius: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --theme-primary-color: var(--vt-c-green-dark-1);
    --theme-secondary-color: var(--vt-c-green-dark-2);

    --color-background: var(--vt-c-black);
    --color-background-soft: var(--vt-c-black-soft);
    --color-background-mute: var(--vt-c-black-mute);

    --color-border: var(--vt-c-divider-dark-2);
    --color-border-hover: var(--vt-c-divider-dark-1);

    --color-heading: var(--vt-c-text-dark-1);
    --color-text: var(--vt-c-text-dark-2);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  font-weight: normal;
}

body {
  min-height: 100vh;
  color: var(--color-text);
  background: var(--color-background);
  transition: color 0.5s,
  background-color 0.5s;
  font-family: Inter,
  -apple-system,
  BlinkMacSystemFont,
  "Segoe UI",
  Roboto,
  Oxygen,
  Ubuntu,
  Cantarell,
  "Fira Sans",
  "Droid Sans",
  "Helvetica Neue",
  sans-serif;
  font-size: 14px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--theme-primary-color);

  padding: 0.5em 0;
}

h1 {
  background-color: var(--theme-secondary-color);
  color: var(--vt-c-white-soft);

  text-align: center;
}

img {
  margin: 0 auto;

  width: 70%;
}

hr {
  margin: 1rem 0;
  border: var(--color-border) solid 2px;
}

label:has(+ :required)::after {
  content: " *";

  color: var(--color-text-error);
}

label:has(+ div :required)::after {
  content: " *";

  color: var(--color-text-error);
}

input {
  color: var(--color-text);
}

input[type=submit] {
  padding: 0.5em 1em;

  font-weight: bold;

  background-color: var(--theme-secondary-color);
  border: none;

  cursor: pointer;
}

input[type=submit]:hover {
  filter: brightness(80%);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="datetime-local"] {
  padding: 1em;
  width: 75%;

  background: var(--color-background-soft);
  border: var(--color-border) solid 1px;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="datetime-local"]:focus {
  outline: var(--color-border-hover) solid 1px;
}

input[type=checkbox] {
  margin-right: 0.5em;

  accent-color: var(--theme-secondary-color);

  cursor: pointer;
}

textarea {
  height: 4em;
  width: 75%;
  padding: 1em;

  background: var(--color-background-soft);
  border: var(--color-border) solid 1px;

  color: var(--color-text);

  resize: vertical;
}

select {
  width: 75%;
  padding: 1em;
  margin-bottom: 1em;

  background: var(--color-background-soft);
  border: var(--color-border) solid 1px;

  color: var(--color-text);

  cursor: pointer;
}

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

table,
td,
th {
  padding: 0 2rem;

  border: var(--color-border) solid 2px;
  border-collapse: collapse;

  color: var(--color-text);
  line-height: 2rem;
  font-size: 15px;
}

td,
th {
  text-align: center;
}

table {
  margin: 0 auto;
}

th {
  border: var(--color-border) solid 2px;

  color: var(--theme-primary-color);
  font-weight: bold;
}

.content {
  padding: 1em 10%;
}

.card {
  margin-bottom: 1em;
  padding: 1em;

  border: 2px solid var(--color-border);

  background-color: var(--color-background-soft);
}

.card-item {
  margin-bottom: 1em;
}

.link {
  color: var(--theme-primary-color);
}

.link:hover {
  border-bottom: solid 1px var(--theme-primary-color);
}

.form-group {
  margin-bottom: 1em;
}

.form-label {
  display: block;
  margin-bottom: 1em;

  font-weight: bold;
}

.form-control {
  margin-bottom: 1em;
}

.form-note {
  font-size: 0.8em;

  width: 75%;
}

.form-errors {
  margin-bottom: 1em;

  color: var(--color-text-warning);
}

.login-form {
  margin: 1em auto;
  padding: 1em;

  background-color: var(--color-background-soft);
  border: var(--color-border) solid 2px;
}

.report-case {
  padding: 1em;
  margin: 2em 0;

  border-bottom: var(--color-border) solid 2px;
}

.case-title {
  margin-bottom: 1em;
}

.case-description {
  margin: 1em 0;
}

.report-success {
  text-align: center;
}

.report-success p {
  color: var(--theme-primary-color);

  line-height: 3em;
  font-size: 2em;
}

.report-success a {
  padding: 0.5em;
  text-decoration: var(--color-border) underline 2px;
}

.report-success a:hover {
  background-color: var(--color-border);
}

.report-detail {
  margin: 2em 0;
}

.report-detail li {
  margin: 1em 0;
}

.btn-error {
  color: var(--vt-c-red);
}

.btn-info {
  color: var(--vt-c-blue);
}

.report-status p {
  color: var(--vt-c-blue);
}

#upload-message {
  margin: 1em 0;

  color: var(--vt-c-blue);
}