/* ---------- 遮罩 ---------- */
.fms-modal-mask {
  position: fixed;
  inset: 0;
  z-index: var(--fms-z-modal);
  background: var(--fms-mask-bg);
}

/* 遮罩过渡：淡入淡出 */
.fms-modal-mask-enter-active,
.fms-modal-mask-leave-active {
  transition: opacity 160ms ease;
}

.fms-modal-mask-enter-from,
.fms-modal-mask-leave-to {
  opacity: 0;
}

/* ---------- 外层容器：滚动 + 定位面板 ---------- */
.fms-modal-wrap {
  position: fixed;
  inset: 0;
  z-index: var(--fms-z-modal);
  display: flex;
  justify-content: center;
  /* 默认距顶部 100px，内容超高时整体滚动 */
  align-items: flex-start;
  padding: 100px 16px 24px;
  overflow-y: auto;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
}

.fms-modal-centered {
  align-items: center;
  padding-top: 24px;
}

/* ---------- 面板 ---------- */
.fms-modal {
  position: relative;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  box-sizing: border-box;
  max-width: 100%;
  background: var(--fms-card);
  border-radius: var(--fms-control-radius);
  box-shadow: var(--fms-popover-shadow);
  color: var(--fms-text);
  font-size: var(--fms-font-size);
  line-height: var(--fms-line-height);
  /* 面板自身可聚焦（tabindex=-1），聚焦时给出清晰的焦点环 */
  outline: none;
  padding: var(--fms-modal-padding);
}

.fms-modal:focus-visible {
  outline: 2px solid var(--fms-primary);
  outline-offset: 2px;
}

/* ---------- 缩放手柄：四边边缘 ---------- */
/* 命中区保持 6px 透明；拖拽线用 --fms-splitter-bar-size-hover 控制宽度，与 splitter 一致 */
.fms-modal-resizer {
  position: absolute;
  touch-action: none;
}

/* 拖拽线：hover / 拖拽时显示居中的灰色细线 */
.fms-modal-resizer::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--fms-text-secondary);
  opacity: 0;
  transition: opacity 150ms ease;
}

.fms-modal-resizer:hover::before,
.fms-modal-resizer.is-resizing::before {
  opacity: 1;
}

/* 左右边缘（e 右 / w 左）调整宽度 */
.fms-modal-resizer-e,
.fms-modal-resizer-w {
  top: 0;
  bottom: 0;
  width: 6px;
  cursor: ew-resize;
}

.fms-modal-resizer-e::before,
.fms-modal-resizer-w::before {
  width: var(--fms-splitter-bar-size-hover);
  height: 100%;
}

.fms-modal-resizer-e {
  right: 0;
}

.fms-modal-resizer-w {
  left: 0;
}

/* 上下边缘（s 底 / n 顶）调整高度 */
.fms-modal-resizer-s,
.fms-modal-resizer-n {
  left: 0;
  right: 0;
  height: 6px;
  cursor: ns-resize;
}

.fms-modal-resizer-s::before,
.fms-modal-resizer-n::before {
  width: 100%;
  height: var(--fms-splitter-bar-size-hover);
}

.fms-modal-resizer-s {
  bottom: 0;
}

.fms-modal-resizer-n {
  top: 0;
}

/* ---------- 全屏态 ---------- */
.fms-modal-fullscreen {
  position: fixed;
  inset: 0;
  /* 覆盖 inline width（面板宽度），忽略 wrap 的内边距与拖拽位移 */
  width: 100vw !important;
  height: 100vh;
  max-width: none;
  border-radius: 0;
  box-shadow: none;
  transform: none !important;
}

/* ---------- 头部：标题 + 关闭按钮（也是拖拽手柄） ---------- */
.fms-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  /* 拖拽手柄：触屏手势交由 pointer 事件处理、文本不可选中、悬停提示可拖动 */
  touch-action: none;
  user-select: none;
  cursor: move;
}

.fms-modal-title {
  margin: 0;
  font-size: var(--fms-font-size);
  font-weight: 600;
  color: var(--fms-text);
  word-break: break-word;
}

/* 头部右侧按钮组：全屏切换 + 关闭 */
.fms-modal-header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.fms-modal-header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--fms-text-secondary);
  cursor: pointer;
  transition:
    background-color 150ms ease,
    color 150ms ease;
}

.fms-modal-header-btn:hover {
  background: var(--fms-secondary-hover);
  color: var(--fms-text);
}

.fms-modal-header-btn:focus-visible {
  outline: 2px solid var(--fms-primary);
  outline-offset: 2px;
}

/* ---------- 内容区 ---------- */
.fms-modal-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  /* 4px 内边距为聚焦外发光（box-shadow 3px）留出空间，避免被 overflow 裁剪 */
  padding: 4px;
  color: var(--fms-text);
  word-break: break-word;
}

/* ---------- 底部：按钮右对齐 ---------- */
.fms-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
  flex-shrink: 0;
}

/* ---------- 面板过渡：缩放淡入 ---------- */
.fms-modal-enter-active,
.fms-modal-leave-active {
  transition:
    opacity 200ms ease,
    transform 200ms ease;
}

.fms-modal-enter-from,
.fms-modal-leave-to {
  opacity: 0;
  transform: scale(0.95);
}

@media (prefers-reduced-motion: reduce) {
  .fms-modal-enter-active,
  .fms-modal-leave-active,
  .fms-modal-mask-enter-active,
  .fms-modal-mask-leave-active {
    transition: none;
  }
}