:root {
  --back: #333;
  --border: gray;
  --primary: #ccc;
  --secondary: #999;
  --highlight: #555;
  --special: #469;
  --button: lightgray;

  --dark-back: #333;
  --dark-border: gray;
  --dark-primary: #ccc;
  --dark-secondary: #999;
  --dark-highlight: #555;
  --dark-special: #469;
  --dark-button: lightgray;

  --light-back: white;
  --light-border: gray;
  --light-primary: black;
  --light-secondary: #333;
  --light-highlight: lightgray;
  --light-button: gray;

  --slider: 20pt;
  --font-big: 11pt;
}

@media (prefers-color-scheme: light) {
  :root {
    --back: var(--light-back);
    --border: var(--light-border);
    --primary: var(--light-primary);
    --secondary: var(--light-secondary);
    --highlight: var(--light-highlight);
    --button: var(--light-button);
  }
}

:root.light {
  --back: var(--light-back);
  --border: var(--light-border);
  --primary: var(--light-primary);
  --secondary: var(--light-secondary);
  --highlight: var(--light-highlight);
  --button: var(--light-button);
}

:root.dark {
  --back: var(--dark-back);
  --border: var(--dark-border);
  --primary: var(--dark-primary);
  --secondary: var(--dark-secondary);
  --highlight: var(--dark-highlight);
  --button: var(--dark-button);
}

html, body {
  height: 100%;
  margin: 0;
}

body, input, select, textarea, table, .popup {
  background-color: var(--back);
  color: var(--primary);
}

button, .btn {
  appearance: auto;
  background-color: var(--button);
  border-radius: 2px;
  border: 0;
  color: black;
  font-family: sans-serif;
  text-align: center;
  text-transform: capitalize;
  vertical-align: middle;
}

#wrapper {
  display: grid;
  height: 100%;
  grid-template-areas:
    "nav nav-drag mailbox"
    "nav nav-drag mailbox-drag"
    "nav nav-drag header"
    "nav nav-drag content";
  grid-template-columns: 250px 3px auto;
  grid-template-rows: 30% 3px max-content auto;
}

*:focus-visible {outline: none}
.hidden {display: none !important}
.highlight {color: var(--special)}
.selected {background-color: var(--highlight)}
.unseen .subject {font-weight: bold}
.deleted .subject {text-decoration: line-through;}
.italic {font-style: italic}
.no-overflow {
  overflow-x: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#mail-content {grid-area: content}
#mailbox {grid-area: mailbox}
#nav {
  display: flex;
  flex-direction: column;
  grid-area: nav;
  padding: 0 15px;
}
#mail-header {
  grid-area: header;
  background-color: var(--highlight);
  border: 2px solid var(--border);
}
#accounts {padding: 5pt 2pt}
#nav-dragbar {
  background-color: var(--primary);
  grid-area: nav-drag;
  cursor: ew-resize;
}
#mailbox-dragbar {
  background-color: var(--primary);
  grid-area: mailbox-drag;
  cursor: ns-resize;
}

#accounts, #nav-options, #mailboxes {
  margin: 10px 0;
}

#mailboxes {
  border: 0;
  display: block;
  flex: 1;
  font-size: var(--font-big);
  margin-bottom: 0;
  height: 80%;
  overflow-y: auto;
  width: 100%;
}
#mailboxes option {padding: 5px}

#mailbox {
  overflow: auto scroll;
}
#mailbox table {
  border-collapse: collapse;
  width: 100%;
}
#mailbox table.additional {
  background-color: unset;
}
#mailbox table.additional td {
  border: 0;
}
#mailbox td.flags {
  text-align: left;
}
#mailbox td.flags div {
  cursor: pointer;
  margin: 2px;
}
#mailbox td.flags .btn {
  padding: 0 2pt;
}
#mailbox td.flags input:not(:checked) + span {
  text-decoration: 3px line-through;
}
#mailbox tr:hover {
  background-color: var(--highlight)
}
#mailbox .date, #mailbox .flags {
  padding: 0 4px;
  text-align: right;
  width: 1px;
  white-space: nowrap;
}
#mailbox .ordering {
  display: inline-block;
  vertical-align: text-top;
  width: 12pt;
}
#mailbox .ordering.asc:before {content: "\25B4"}
#mailbox .ordering.desc:before {content: "\25BC"}

#mailbox table th {
  border: 1px solid gray;
  background-color: var(--highlight);
  text-align: center !important;
}

#mailbox table td {border: 1px solid var(--border)}

#logo {
  font-family: monospace;
  font-size: 20pt;
  padding: 5% 0;
  text-align: center;
}
#version {
  font-family: monospace;
  font-size: 7pt;
  text-align: right;
  line-height: 1.0;
  height: 1em;
}

.header {
  background-color: var(--highlight);
}
.header th {
  text-align: right;
  width: 100px;
}
.header .buttons td {text-align: right}
.header input {
  box-sizing: border-box;
  width: 100%;
  width: -moz-available;
  width: -webkit-fill-available;
  width: fill-available;
}

.buttons button {margin-right: 5px}

.container {height: 100%; overflow: hidden}
.container textarea, .container iframe {
  border: 0;
  margin: 0;
  padding: 0;
  height: 100%;
  resize: none;
  width: 100%;
}
.container textarea {box-sizing: border-box; padding: 5px}

#uploader input[type="file"] {
  display: none;
}

.btn-main {
  font-size: var(--font-big);
  padding: 5pt 2pt;
  margin: 2px 0;
}
#btn-dropdown button {
  cursor: pointer;
}
#btn-dropdown {
  position: relative;
  display: inline-block;
}
#btn-dropdown div {
  background-color: var(--secondary);
  display: none;
  min-width: 150px;
  position: absolute;
  right: 5px;
}
#btn-dropdown a {
  display: block;
  margin: 3px;
  text-align: center;
}
#btn-dropdown:hover div {display: block}
#btn-dropdown a:hover {background: var(--highlight)}

.popup {
  background-color: var(--highlight);
  z-index: 1000;
  border-radius: 10px;
  padding: 10px;
  border: 2px solid var(--border);
}

.popup.centered {
  position: fixed;
  top: 150px;
  left: 150px;
  bottom: 150px;
  right: 150px;
}

#mailbox-control {
  background-color: var(--back);
  border-color: var(--primary);
  border-radius: 0 10px 10px 0;
  border-width: 3px 3px 3px 0px;
  position: fixed;
  width: 250px;
}
#btn-mailbox-manage .icon {
  float: right;
}
#btn-mailbox-manage .open.icon:before {content: "<"}
#btn-mailbox-manage .icon:before {content: ">"}

#editor {
  display: grid;
  grid-template-rows: max-content max-content min-content auto;
}

#editor .content {
  display: block;
  height: 100%;
}
#editor .attachments {
  border-top: 0;
  border-bottom: 2px solid var(--border);
}
#editor .header {
  display: block;
  max-height: 200px;
  overflow-y: scroll;
  padding: 3px;
  border-bottom: 0;
}
#editor .header th {
  position: relative;
  min-width: 150px;
  max-width: 150px;
}
#editor .buttons button {
  padding: 5pt 2pt;
  width: 125px;
}
#mailbox-control .buttons button {
  font-size: var(--font-big);
  margin: 2px 0;
  padding: 5pt 2pt;
  width: 100%;
}
#mailbox-control #mailbox-name {
  padding: 5px 0;
  width: 100%;
}
#editor .header .delete {
  content: "&#128465;";
}
#editor .buttons {
  text-align: right;
  padding: 3px;
}
#editor .header td {width: 100%}
#editor .header .control {
  min-width: 20px;
}

.switch {
  font-size: var(--font-big);
  height: 20px;
  padding: 2px;
  margin: 2px;
  position: relative;
}

.switch label {
  position: absolute;
  display: inline-block;
  width: 60px;
  height: 20px;
  right: 2px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch .slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--back);
  -webkit-transition: .4s;
  transition: .4s;
}

.switch .slider:before {
  position: absolute;
  content: "";
  height: 12px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: var(--primary);
  -webkit-transition: .4s;
  transition: .4s;
}

.switch input:checked + .slider {
  background-color: var(--special);
}

.switch input:focus + .slider {
  box-shadow: 0 0 1px var(--special);
}

.switch input:checked + .slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}