/**
 * Titlebar Layout - Shadcn/UI Style
 * 标题栏样式
 */

/* ===== 标题栏 ===== */
#titlebar {
  height: var(--titlebar-height);
  min-height: var(--titlebar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  -webkit-app-region: drag;
  z-index: 100;
  user-select: none;
}

.titlebar-section {
  display: flex;
  align-items: center;
  height: 100%;
  -webkit-app-region: no-drag;
}

/* 中间区域 - 拖拽 + 状态 */
#titlebar-center {
  flex: 1;
  justify-content: center;
  -webkit-app-region: drag;
  padding: 0 0.5rem;
}

/* macOS 控制按钮区 */
#titlebar-macos-controls {
  padding-left: 0.75rem;
  gap: 0.5rem;
  display: none;
}

/* Windows/Linux 控制按钮区 */
#titlebar-win-controls {
  display: none;
}

/* 平台特定显示 */
body.platform-darwin #titlebar-macos-controls {
  display: flex;
}

body.platform-win32 #titlebar-win-controls,
body.platform-linux #titlebar-win-controls {
  display: flex;
}

/* ===== macOS 风格窗口按钮 ===== */
.window-btn.macos {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
  transition: all 0.1s ease;
}

.window-btn.macos .btn-icon-inner {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.5rem;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.5);
}

.window-btn.macos.close {
  background: #ff5f57;
}

.window-btn.macos.minimize {
  background: #febc2e;
}

.window-btn.macos.maximize {
  background: #28c840;
}

/* macOS 按钮悬停效果 */
#titlebar-macos-controls:hover .window-btn.macos .btn-icon-inner {
  display: block;
}

.window-btn.macos.close .btn-icon-inner::before {
  content: "×";
}

.window-btn.macos.minimize .btn-icon-inner::before {
  content: "−";
}

.window-btn.macos.maximize .btn-icon-inner::before {
  content: "+";
}

/* 非活动窗口状态 */
body.window-inactive .window-btn.macos {
  background: #ddd;
}

/* 深色主题非活动状态 */
.dark.window-inactive .window-btn.macos {
  background: #555;
}

/* ===== Windows/Linux 风格窗口按钮 ===== */
.window-btn.win {
  width: 2.875rem;
  height: var(--titlebar-height);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--muted-foreground);
  cursor: pointer;
  transition: background 0.1s ease;
}

.window-btn.win:hover {
  background: var(--muted);
  color: var(--foreground);
}

.window-btn.win.close:hover {
  background: #e81123;
  color: white;
}

.window-btn.win svg {
  pointer-events: none;
}