@font-face {
  font-family: 'MS Sans Serif';
  /*src: url('fonts/ms-sans-serif.woff2') format('woff2');*/
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'MS Sans Serif';
  /*src: url('fonts/ms-sans-serif-bold.woff2') format('woff2');*/
  font-weight: bold;
  font-style: normal;
}

:root {
  --bg-primary: #008080;
  --bg-secondary: #c0c0c0;
  --text-primary: #000000;
  --text-secondary: #000000;
  --link-color: #0000ff;
  --window-bg: #c0c0c0;
  --window-header: linear-gradient(90deg, #000080, #1084d0);
  --window-header-inactive: #808080;
  --separator-dark: #808080;
  --separator-light: #ffffff;
  --taskbar-height: 28px;
  --titlebar-height: 23px;
  --icon-size: 32px;
  --icon-text: 11px;
  --menu-icon-size: 16px;
  --menu-text-size: 11px;
  --menu-padding: 4px 6px;
}

@media (max-width: 768px) {
  :root {
    --taskbar-height: 40px;
    --titlebar-height: 32px;
    --icon-size: 48px;
    --icon-text: 14px;
    --menu-icon-size: 24px;
    --menu-text-size: 16px;
    --menu-padding: 12px 8px;
  }
}

.dark-mode {
  --bg-primary: #1a1a2e;
  --bg-secondary: #2a2a3a;
  --text-primary: #d1d1d6;
  --text-secondary: #9898a3;
  --link-color: #7f9cf5;
  --window-bg: #2d2d3d;
  --window-header: linear-gradient(90deg, #2d2d4d, #3d4d8d);
  --window-header-inactive: #3a3a4a;
  --separator-dark: rgba(0, 0, 0, 0.4);
  --separator-light: rgba(255, 255, 255, 0.15);
}

/* Force repaint helper class */
.force-repaint {
  transform: translateZ(0);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}

body {
  font-family: 'MS Sans Serif', sans-serif;
  overflow: hidden;
  color: var(--text-primary);
}

.desktop {
  background-color: var(--bg-primary);
  height: 100vh;
  position: relative;
  touch-action: none;
}

.taskbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--taskbar-height);
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--separator-light);
  display: flex;
  align-items: center;
  padding: 2px;
  z-index: 1000;
}

.start-button {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  background-color: var(--bg-secondary);
  border: none;
  border-top: 1px solid var(--separator-light);
  border-left: 1px solid var(--separator-light);
  border-right: 1px solid var(--separator-dark);
  border-bottom: 1px solid var(--separator-dark);
  font-family: 'MS Sans Serif', sans-serif;
  font-weight: bold;
  cursor: pointer;
  color: var(--text-primary);
  min-width: 54px;
  width: 66px;
  height: calc(var(--taskbar-height) - 4px);
}

.start-button img {
  width: 16px;
  height: 16px;
  filter: brightness(0);
}

.dark-mode .start-button img {
  filter: brightness(0) invert(1);
}

@media (max-width: 768px) {
  .start-button {
    width: 70px;
    padding: 4px 8px;
  }

  .start-button img {
    width: 20px;
    height: 20px;
  }

  .start-button span {
    font-size: 14px;
  }
}

.start-button:active {
  border-top: 1px solid var(--separator-dark);
  border-left: 1px solid var(--separator-dark);
  border-right: 1px solid var(--separator-light);
  border-bottom: 1px solid var(--separator-light);
  padding: 3px 5px 1px 7px;
}

.separator {
  width: 1px;
  height: calc(var(--taskbar-height) - 8px);
  background: var(--separator-dark);
  border-right: 1px solid var(--separator-light);
  margin: 0 4px;
  opacity: 0.7;
}

#taskbar-windows {
  flex: 1;
  display: flex;
  gap: 2px;
  overflow-x: hidden;
  margin: 0 4px;
  min-width: 0;
}

.taskbar-button {
  height: calc(var(--taskbar-height) - 6px);
  padding: 2px 8px;
  background: var(--bg-secondary);
  border: 1px solid;
  border-top-color: var(--separator-light);
  border-left-color: var(--separator-light);
  border-right-color: var(--separator-dark);
  border-bottom-color: var(--separator-dark);
  font-family: 'MS Sans Serif', sans-serif;
  font-size: var(--menu-text-size);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 100px;
  max-width: 200px;
  display: flex;
  align-items: center;
  color: var(--text-primary);
}

.taskbar-button.active {
  background: var(--window-header);
  color: white;
}

.taskbar-right {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.clock {
  min-width: 55px;
  height: calc(var(--taskbar-height) - 6px);
  background: var(--window-bg);
  border-left: 1px solid var(--separator-dark);
  border-top: 1px solid var(--separator-dark);
  border-right: 1px solid var(--separator-light);
  border-bottom: 1px solid var(--separator-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--menu-text-size);
  padding: 0 6px;
}

.dark-mode-toggle {
  width: calc(var(--taskbar-height) - 6px);
  height: calc(var(--taskbar-height) - 6px);
  background: var(--window-bg);
  border: none;
  border-left: 1px solid var(--separator-dark);
  border-top: 1px solid var(--separator-dark);
  border-right: 1px solid var(--separator-light);
  border-bottom: 1px solid var(--separator-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.dark-mode-toggle img {
  width: 14px;
  height: 14px;
  filter: brightness(0);
}

.dark-mode .dark-mode-toggle img {
  filter: brightness(0) invert(1);
}

.desktop-icon {
  position: absolute;
  width: 90px;
  text-align: center;
  color: white;
  cursor: pointer;
  padding: 8px;
  touch-action: none;
}

.desktop-icon.selected {
  background-color: rgba(0, 0, 128, 0.3);
}

.desktop-icon span:first-child {
  font-size: var(--icon-size);
  display: block;
  margin-bottom: 4px;
  position: relative;
}

.desktop-icon.shortcut span:first-child::after {
  content: '↗️';
  position: absolute;
  bottom: -5px;
  right: 5px;
  font-size: calc(var(--icon-size) * 0.4);
  filter: drop-shadow(1px 1px 1px rgba(0, 0, 0, 0.8));
}

.desktop-icon span:last-child {
  font-size: var(--icon-text);
  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.window {
  position: absolute;
  background: var(--bg-secondary);
  border: 2px solid;
  border-color: var(--separator-light) var(--separator-dark)
    var(--separator-dark) var(--separator-light);
  min-width: 200px;
  min-height: 150px;
  touch-action: none;
}

.window.active {
  z-index: 100;
}

.window-titlebar {
  background: var(--window-header);
  color: white;
  padding: 3px 5px;
  font-weight: bold;
  font-size: var(--menu-text-size);
  height: var(--titlebar-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: move;
  touch-action: none;
}

.window-controls {
  display: flex;
  gap: 2px;
}

.window-button {
  width: 16px;
  height: 14px;
  background: var(--bg-secondary);
  border: 1px solid;
  border-color: var(--separator-light) var(--separator-dark)
    var(--separator-dark) var(--separator-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  cursor: pointer;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .window-button {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }
}

.window-content {
  padding: 1px;
  background: var(--window-bg);
  border: 1px solid;
  border-color: var(--separator-dark) var(--separator-light)
    var(--separator-light) var(--separator-dark);
  position: absolute;
  top: var(--titlebar-height);
  left: 3px;
  right: 3px;
  bottom: 3px;
  overflow: auto;
}

.window-content iframe {
  padding: 0;
}

.folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 90px);
  gap: 12px;
  padding: 12px;
}

.folder-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 90px;
  text-decoration: none;
  color: var(--text-primary);
  padding: 8px;
}

.folder-item span:first-child {
  font-size: var(--icon-size);
  margin-bottom: 4px;
}

.folder-item .item-name {
  font-size: var(--icon-text);
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.folder-item:hover {
  background-color: var(--window-header);
  color: white;
}

.markdown-content {
  padding: 16px;
  line-height: 1.5;
}

.markdown-content h1 {
  font-size: 24px;
  margin-bottom: 16px;
}

.markdown-content h2 {
  font-size: 20px;
  margin: 16px 0 8px;
}

.markdown-content h3 {
  font-size: 16px;
  margin: 16px 0 8px;
}

.markdown-content p {
  margin-bottom: 8px;
}

.markdown-content a {
  color: var(--link-color);
  text-decoration: none;
}

.markdown-content a:hover {
  text-decoration: underline;
}

.resize-handle {
  position: absolute;
  background: transparent;
}

.resize-handle.n {
  top: 0;
  left: 3px;
  right: 3px;
  height: 3px;
  cursor: n-resize;
}

.resize-handle.e {
  top: var(--titlebar-height);
  right: 0;
  bottom: 3px;
  width: 3px;
  cursor: e-resize;
}

.resize-handle.s {
  bottom: 0;
  left: 3px;
  right: 3px;
  height: 3px;
  cursor: s-resize;
}

.resize-handle.w {
  top: var(--titlebar-height);
  left: 0;
  bottom: 3px;
  width: 3px;
  cursor: w-resize;
}

.resize-handle.nw {
  top: 0;
  left: 0;
  width: 3px;
  height: 3px;
  cursor: nw-resize;
}

.resize-handle.ne {
  top: 0;
  right: 0;
  width: 3px;
  height: 3px;
  cursor: ne-resize;
}

.resize-handle.sw {
  bottom: 0;
  left: 0;
  width: 3px;
  height: 3px;
  cursor: sw-resize;
}

.resize-handle.se {
  bottom: 0;
  right: 0;
  width: 3px;
  height: 3px;
  cursor: se-resize;
}

.start-menu {
  position: fixed;
  bottom: var(--taskbar-height);
  left: 2px;
  width: 180px;
  background: var(--bg-secondary);
  border: 2px solid;
  border-color: var(--separator-light) var(--separator-dark)
    var(--separator-dark) var(--separator-light);
  display: flex;
  z-index: 1001;
}

@media (max-width: 768px) {
  .start-menu {
    width: 240px;
  }
}

.start-menu.hidden {
  display: none;
}

.start-sidebar {
  width: 21px;
  background: var(--window-header);
  color: white;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 6px 2px;
}

@media (max-width: 768px) {
  .start-sidebar {
    width: 28px;
  }
}

.start-items {
  flex: 1;
  padding: 2px 0;
}

.menu-item {
  padding: var(--menu-padding);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  position: relative;
  color: var(--text-primary);
}

.menu-icon {
  font-size: var(--menu-icon-size);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: var(--menu-icon-size);
}

.menu-text {
  font-size: var(--menu-text-size);
  font-family: 'MS Sans Serif', sans-serif;
}

.menu-item:hover {
  background: var(--window-header);
  color: white;
}

.menu-item:hover > .submenu {
  display: block;
}

.submenu {
  display: none;
  position: absolute;
  left: 100%;
  bottom: 0;
  top: auto;
  background: var(--bg-secondary);
  border: 2px solid;
  border-color: var(--separator-light) var(--separator-dark)
    var(--separator-dark) var(--separator-light);
  min-width: 150px;
  z-index: 1002;
  max-height: 80vh;
  overflow-y: auto;
}

.start-items .separator {
  width: auto;
  height: 1px;
  margin: 4px 0;
  background: var(--separator-dark);
  border-bottom: 1px solid var(--separator-light);
}

.menu-item.has-submenu::after {
  content: '▶';
  position: absolute;
  right: 8px;
  font-size: 8px;
}

.menu-item.has-submenu {
  padding-right: 20px;
}