@font-face {
  font-family: "MyFont";
  src: url("ms_sans_serif.woff2") format("woff2");
  font-weight: normal;
  font-style: normal;
}

#app-window {
  display: flex;
  font-family: "MyFont", sans-serif;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background: var(--win-face);
  border-style: solid;
  border-width: 2px;
  border-color: var(--win-highlight) var(--win-shadow-darker) var(--win-shadow-darker) var(--win-highlight);
}

#title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 22px;
  padding: 2px 2px 2px 4px;
  background: linear-gradient(to right, var(--win-title-active-start), var(--win-title-active-end));
  flex-shrink: 0;
}

#title-bar-left {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow: hidden;
}

.title-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

#title-text {
  color: var(--win-title-text);
  font-weight: bold;
  font-size: var(--font-size-title);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#title-bar-buttons {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

#menu-bar {
  display: flex;
  align-items: center;
  height: 20px;
  padding: 0 2px;
  background: var(--win-face);
  flex-shrink: 0;
  position: relative;
  border-bottom: 1px solid var(--win-shadow-dark);
}

#toolbar {
  display: flex;
  align-items: center;
  height: 36px;
  padding: 2px 4px;
  background: var(--win-face);
  flex-shrink: 0;
  border-bottom: 2px solid var(--win-shadow-dark);
  gap: 1px;
}

#main-area {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

#folder-pane {
  display: flex;
  flex-direction: column;
  width: 180px;
  min-width: 80px;
  max-width: 350px;
  border-right: 2px solid var(--win-shadow-dark);
  background: var(--win-face);
  overflow: hidden;
  flex-shrink: 0;
}

#folder-header {
  height: 20px;
  padding: 2px 6px;
  font-weight: bold;
  font-size: var(--font-size-ui);
  background: var(--win-face-dark);
  border-bottom: 1px solid var(--win-shadow-dark);
  display: flex;
  align-items: center;
}

#folder-tree {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 2px 0;
}

#folder-resize-handle {
  width: 4px;
  cursor: ew-resize;
  background: var(--win-face);
  flex-shrink: 0;
  border-right: 1px solid var(--win-shadow-dark);
}

#folder-resize-handle:hover {
  background: var(--win-shadow-dark);
}

#right-pane {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

#email-list-pane {
  display: flex;
  flex-direction: column;
  height: 200px;
  min-height: 60px;
  overflow: hidden;
  flex-shrink: 0;
}

#email-list-header {
  display: flex;
  height: 20px;
  background: var(--win-face);
  flex-shrink: 0;
  border-bottom: 1px solid var(--win-shadow-dark);
}

#email-list-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--win-input-bg);
  border-style: solid;
  border-width: 2px;
  border-color: var(--win-shadow-darker) var(--win-highlight) var(--win-highlight) var(--win-shadow-dark);
}

#preview-resize-handle {
  height: 4px;
  cursor: ns-resize;
  background: var(--win-face);
  flex-shrink: 0;
  border-top: 1px solid var(--win-shadow-dark);
  border-bottom: 1px solid var(--win-highlight);
}

#preview-resize-handle:hover {
  background: var(--win-shadow-dark);
}

#preview-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-style: solid;
  border-width: 2px;
  border-color: var(--win-shadow-darker) var(--win-highlight) var(--win-highlight) var(--win-shadow-dark);
  background: var(--win-input-bg);
}

#status-bar {
  display: flex;
  height: 20px;
  flex-shrink: 0;
  border-top: 1px solid var(--win-shadow-dark);
  background: var(--win-face);
}

.status-section {
  display: flex;
  align-items: center;
  padding: 0 8px;
  border-right: 1px solid var(--win-shadow-dark);
  font-size: var(--font-size-ui);
  white-space: nowrap;
}

.status-section:last-child {
  border-right: none;
  margin-left: auto;
}

#find-bar {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--win-face);
  border-style: solid;
  border-width: 2px;
  border-color: var(--win-highlight) var(--win-shadow-darker) var(--win-shadow-darker) var(--win-highlight);
  padding: 6px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 200;
  box-shadow: 2px 2px 0 var(--win-shadow-dark);
}