.btn {
  height: 34px;
  padding: 0 18px;
  border: 1px solid var(--wt-input-border);
  border-radius: 6px;
  background: var(--wt-btn-bg);
  color: var(--wt-term-fg);
  font-family: var(--wt-font-ui);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.1s, transform 0.05s;
}
.btn:active { transform: scale(0.98); }
.btn:hover { background: var(--wt-btn-hover); }

.btn-primary {
  background: var(--wt-btn-primary);
  border-color: var(--wt-btn-primary);
  color: #ffffff;
}
.btn-primary:hover { background: var(--wt-btn-primary-hover); }

.history-dropdown {
  position: absolute;
  top: 0;
  left: 0;
  min-width: 300px;
  max-width: min(420px, calc(100vw - 24px));
  max-height: min(400px, calc(100vh - 80px));
  overflow-y: auto;
  background: var(--wt-dropdown-bg);
  border: 1px solid var(--wt-dropdown-border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  z-index: 999;
  padding: 4px;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.1s;
  font-size: 12px;
  color: var(--wt-tab-text);
}
.history-item:hover { background: var(--wt-dropdown-hover); }
.history-item.opened { opacity: 0.5; }

.history-item-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--wt-accent);
  flex-shrink: 0;
}

.history-item-info {
  flex: 1;
  min-width: 0;
}
.history-item-id {
  font-weight: 600;
  margin-bottom: 2px;
}
.history-item-cmd {
  color: var(--wt-tab-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-item-delete {
  opacity: 0;
  color: var(--wt-tab-text-muted);
  font-size: 10px;
  padding: 4px;
  border-radius: 3px;
  transition: opacity 0.1s, background 0.1s;
}
.history-item:hover .history-item-delete { opacity: 1; }
.history-item-delete:hover {
  background: rgba(0,0,0,0.04);
  color: var(--wt-close-hover);
}

.history-empty {
  padding: 20px;
  text-align: center;
  color: var(--wt-tab-text-muted);
  font-size: 12px;
}

/* ── 终端尺寸选择器 ── */
/* 状态栏中的尺寸项可点击，加 hover/cursor 反馈 */
#status-size {
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: background 0.1s;
  user-select: none;
}
@media (hover: hover) {
  #status-size:hover {
    background: var(--wt-dropdown-hover);
  }
}
#status-size.size-active {
  color: var(--wt-accent);
}

.size-dropdown {
  position: absolute;
  top: 0;
  left: 0;
  min-width: 180px;
  max-width: min(260px, calc(100vw - 24px));
  max-height: min(420px, calc(100vh - 80px));
  overflow-y: auto;
  background: var(--wt-dropdown-bg);
  border: 1px solid var(--wt-dropdown-border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  z-index: 999;
  padding: 4px;
}

.size-dropdown-section {
  padding: 4px 8px 2px;
  font-size: 10px;
  color: var(--wt-tab-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.size-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.1s;
  font-size: 12px;
  color: var(--wt-tab-text);
  gap: 8px;
  user-select: none;
}
.size-dropdown-item:hover { background: var(--wt-dropdown-hover); }
.size-dropdown-item.selected {
  color: var(--wt-accent);
  background: var(--wt-dropdown-hover);
}
.size-dropdown-item.selected::after {
  content: '✓';
  font-size: 11px;
  margin-left: auto;
  color: var(--wt-accent);
}
.size-dropdown-item .size-item-value {
  color: var(--wt-tab-text-muted);
  font-size: 11px;
  font-family: var(--wt-font-mono);
}
.size-dropdown-item.selected .size-item-value {
  color: var(--wt-accent);
}

.size-dropdown-divider {
  height: 1px;
  background: var(--wt-tab-border);
  margin: 4px 8px;
}

/* 自定义尺寸输入区域 */
.size-custom-input {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--wt-tab-text);
}
.size-custom-input input {
  width: 56px;
  height: 26px;
  padding: 0 6px;
  border: 1px solid var(--wt-input-border);
  border-radius: 4px;
  background: var(--wt-input-bg);
  color: var(--wt-term-fg);
  font-family: var(--wt-font-mono);
  font-size: 12px;
  text-align: center;
}
.size-custom-input input:focus {
  outline: none;
  border-color: var(--wt-input-focus-border);
}
.size-custom-input .size-x {
  color: var(--wt-tab-text-muted);
  font-family: var(--wt-font-mono);
}
.size-custom-input button {
  height: 26px;
  padding: 0 10px;
  border: 1px solid var(--wt-input-border);
  border-radius: 4px;
  background: var(--wt-btn-primary);
  border-color: var(--wt-btn-primary);
  color: #ffffff;
  font-size: 11px;
  cursor: pointer;
  margin-left: auto;
}
.size-custom-input button:hover { background: var(--wt-btn-primary-hover); }
.size-custom-input button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 问题2：自适应排他锁 —— 被其他连接持锁时尺寸选项灰显 */
.size-dropdown-item.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}
.size-custom-input.disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* 问题2：接管尺寸控制按钮 */
.size-takeover-btn {
  display: block;
  width: calc(100% - 16px);
  margin: 8px;
  padding: 8px 12px;
  border: 1px solid var(--wt-input-border);
  border-radius: 4px;
  background: var(--wt-btn-primary);
  color: var(--wt-btn-primary-text, #fff);
  font-size: 12px;
  cursor: pointer;
}
.size-takeover-btn:hover { background: var(--wt-btn-primary-hover); }
.touch-device .size-takeover-btn {
  padding: 12px 14px;
  font-size: 13px;
}

/* 触摸端增大点击目标 */
.touch-device .size-dropdown-item {
  padding: 12px 14px;
  font-size: 13px;
}
.touch-device .size-custom-input input {
  height: 32px;
  font-size: 13px;
}
.touch-device .size-custom-input button {
  height: 32px;
  font-size: 12px;
}

.toast-container {
  position: fixed;
  top: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  max-width: 360px;
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--wt-toast-bg);
  color: var(--wt-toast-fg);
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: auto;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}
.toast.error {
  background: var(--wt-error);
}
.toast.success {
  background: var(--wt-success);
}

.context-menu {
  position: fixed;
  min-width: 140px;
  background: var(--wt-dropdown-bg);
  border: 1px solid var(--wt-dropdown-border);
  border-radius: 6px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  z-index: 3000;
  padding: 4px;
}
.context-menu-item {
  padding: 6px 10px;
  font-size: 12px;
  color: var(--wt-tab-text);
  border-radius: 4px;
  cursor: pointer;
}
.context-menu-item:hover { background: var(--wt-dropdown-hover); }
.context-menu-item.danger:hover { color: var(--wt-close-hover); }

/* ── 屏幕共享下拉菜单（电脑图标点击弹出） ── */
.screen-share-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 220px;
  background: var(--wt-dropdown-bg);
  border: 1px solid var(--wt-dropdown-border);
  border-radius: 6px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  z-index: 3000;
  padding: 4px;
}
.screen-share-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--wt-tab-text);
  white-space: nowrap;
}
@media (hover: hover) {
  .screen-share-item:hover { background: var(--wt-dropdown-hover); }
}
.screen-share-item .ss-item-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--wt-tab-text);
}
.screen-share-item .ss-item-text {
  font-size: 13px;
  font-weight: 500;
}
.screen-share-item .ss-item-desc {
  font-size: 11px;
  color: var(--wt-tab-text);
  opacity: 0.6;
  margin-left: auto;
}
/* 触摸设备适配 */
body.touch-device .screen-share-item {
  padding: 10px 12px;
}