* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ---- Menu bar ---- */
.menu-bar { display: flex; background: var(--sz-color-menu); color: var(--sz-color-menu-text); font-size: 11px; user-select: none; border-bottom: 1px solid var(--sz-color-button-shadow); position: relative; z-index: 100; flex-shrink: 0; }
.menu-item { padding: 3px 8px; position: relative; cursor: default; }
.menu-item:hover, .menu-item.open { background: var(--sz-color-highlight); color: var(--sz-color-highlight-text); }
.menu-dropdown { display: none; position: absolute; top: 100%; left: 0; background: var(--sz-color-menu); border: 1px solid var(--sz-color-button-shadow); box-shadow: 2px 2px 4px rgba(0,0,0,0.2); min-width: 160px; z-index: 200; }
.menu-item.open .menu-dropdown { display: block; }
.menu-entry { padding: 3px 24px 3px 8px; white-space: nowrap; cursor: default; color: var(--sz-color-menu-text); }
.menu-entry:hover { background: var(--sz-color-highlight); color: var(--sz-color-highlight-text); }
.menu-separator { height: 1px; background: var(--sz-color-button-shadow); margin: 2px 4px; }

/* ---- Main layout ---- */
#app {
  display: grid;
  grid-template-columns: 200px 1fr;
  grid-template-rows: 1fr auto;
  grid-template-areas:
    "sidebar main"
    "sidebar info";
  flex: 1;
  min-height: 0;
}

/* ---- Left sidebar: font list ---- */
#sidebar {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  min-height: 0;
}

#search-box {
  padding: 4px;
  flex-shrink: 0;
}

#search-input {
  width: 100%;
  padding: 2px 4px;
  font-family: inherit;
  font-size: 11px;
  border: 2px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
  outline: none;
}

#category-bar {
  padding: 2px 4px;
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
}

.cat-btn {
  padding: 1px 4px;
  font-family: inherit;
  font-size: 9px;
  cursor: default;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
}

.cat-btn.active {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
  font-weight: bold;
}

#font-list {
  flex: 1;
  overflow-y: auto;
  border-top: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
}

.font-item {
  padding: 3px 6px;
  cursor: default;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
  line-height: 1.4;
  border-bottom: 1px solid var(--sz-color-button-light);
}

.font-item:hover {
  background: var(--sz-color-button-light);
}

.font-item.selected {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

#font-count {
  padding: 2px 6px;
  font-size: 9px;
  color: var(--sz-color-gray-text);
  border-top: 1px solid var(--sz-color-button-shadow);
  flex-shrink: 0;
}

/* ---- Main area ---- */
#main-area {
  grid-area: main;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

/* ---- Toolbar ---- */
#toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border-bottom: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  flex-shrink: 0;
}

#toolbar label {
  font-size: 10px;
  font-weight: bold;
}

#toolbar select,
#toolbar input[type="number"] {
  font-family: inherit;
  font-size: 10px;
  padding: 1px 2px;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
}

#toolbar input[type="color"] {
  width: 22px;
  height: 18px;
  padding: 0;
  border: 1px solid var(--sz-color-button-shadow);
  cursor: pointer;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 3px;
}

.style-btn {
  padding: 1px 5px;
  font-family: inherit;
  font-size: 10px;
  cursor: default;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  min-width: 22px;
  text-align: center;
}

.style-btn.active {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

#size-slider {
  width: 80px;
  height: 14px;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

#size-slider::-webkit-slider-runnable-track {
  height: 6px;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
}

#size-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 16px;
  background: var(--sz-color-button-face);
  border: 1px solid var(--sz-color-button-shadow);
  margin-top: -6px;
  cursor: pointer;
}

#size-slider::-moz-range-track {
  height: 6px;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
}

#size-slider::-moz-range-thumb {
  width: 10px;
  height: 16px;
  background: var(--sz-color-button-face);
  border: 1px solid var(--sz-color-button-shadow);
  cursor: pointer;
  border-radius: 0;
}

/* ---- Tabs ---- */
#tab-bar {
  display: flex;
  gap: 0;
  padding: 0 6px;
  border-bottom: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  flex-shrink: 0;
}

.tab-btn {
  padding: 2px 8px;
  font-size: 10px;
  font-family: inherit;
  cursor: default;
  border: 1px solid var(--sz-color-button-shadow);
  border-bottom: none;
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  margin-bottom: -1px;
  position: relative;
}

.tab-btn.active {
  background: var(--sz-color-window);
  border-bottom: 1px solid var(--sz-color-window);
  z-index: 1;
  font-weight: bold;
}

/* ---- Tab content ---- */
#tab-content {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--sz-color-window);
  padding: 8px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---- Sample text ---- */
#sample-presets {
  display: flex;
  gap: 4px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.preset-btn {
  padding: 1px 6px;
  font-family: inherit;
  font-size: 9px;
  cursor: default;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
}

.preset-btn.active {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

#sample-text {
  width: 100%;
  min-height: 80px;
  padding: 8px;
  border: 2px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  resize: vertical;
  outline: none;
  word-wrap: break-word;
  overflow-wrap: break-word;
  user-select: text;
  -webkit-user-select: text;
}

/* ---- Character grid ---- */
#char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
  gap: 2px;
}

.char-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  cursor: pointer;
  font-size: 18px;
  min-height: 36px;
}

.char-cell:hover {
  background: var(--sz-color-button-light);
  border-color: var(--sz-color-highlight);
}

.char-cell.selected {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

/* ---- Glyph inspector ---- */
#glyph-inspector {
  margin-top: 8px;
  padding: 8px;
  border: 2px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  display: none;
}

#glyph-inspector.visible {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  align-items: start;
}

#glyph-char {
  grid-row: 1 / 6;
  font-size: 120px;
  line-height: 1;
  text-align: center;
  min-width: 130px;
  padding: 8px;
  border-right: 1px solid var(--sz-color-button-shadow);
}

.glyph-label {
  font-weight: bold;
  font-size: 10px;
  text-align: right;
  padding-top: 2px;
}

.glyph-value {
  font-family: 'Lucida Console', 'Consolas', monospace;
  font-size: 11px;
  padding: 1px 4px;
  background: var(--sz-color-button-face);
  border: 1px solid var(--sz-color-button-shadow);
  user-select: text;
  -webkit-user-select: text;
  word-break: break-all;
}

/* ---- Info panel ---- */
#info-panel {
  grid-area: info;
  border-top: 1px solid var(--sz-color-button-shadow);
  padding: 4px 8px;
  background: var(--sz-color-button-face);
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  gap: 2px 8px;
  font-size: 10px;
  max-height: 60px;
  overflow-y: auto;
}

#info-panel .info-label {
  font-weight: bold;
  white-space: nowrap;
}

#info-panel .info-value {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  user-select: text;
  -webkit-user-select: text;
}

#info-panel .info-value.mono {
  font-family: 'Lucida Console', 'Consolas', monospace;
  font-size: 9px;
}

/* ---- Dialogs ---- */
.dialog-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.3);
  z-index: 2000;
  justify-content: center;
  align-items: center;
}

.dialog-overlay.visible {
  display: flex;
}

.dialog {
  background: var(--sz-color-button-face);
  border: 2px outset var(--sz-color-button-shadow);
  min-width: 300px;
  max-width: 450px;
  box-shadow: 3px 3px 8px rgba(0,0,0,0.3);
}

.dialog-title {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
  padding: 4px 8px;
  font-weight: bold;
  font-size: 11px;
  user-select: none;
}

.dialog-body {
  padding: 12px;
  font-size: 11px;
}

.dialog-body p {
  margin-bottom: 8px;
}

.dialog-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding: 8px 12px;
}

.dialog-buttons button {
  min-width: 72px;
  padding: 3px 12px;
  font-size: 11px;
}