/* ==========================================================================
   模态框组件 (Modal)
   ========================================================================== */

/* 遮罩层 (Overlay) */
.zuoekai-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px); /* 磨砂效果 */
  z-index: var(--zuoekai-z-modal, 1500);
  
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

/* 激活状态 */
.zuoekai-modal-overlay--active {
  opacity: 1;
  visibility: visible;
}

/* 模态框主体 (Dialog) */
.zuoekai-modal {
  background-color: var(--zuoekai-color-surface-panel);
  border-radius: var(--zuoekai-radius-lg);
  box-shadow: var(--zuoekai-shadow-lg);
  border: 1px solid var(--zuoekai-color-border);
  
  width: 100%;
  max-width: 500px; /* 默认宽度 (MD) */
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  
  transform: scale(0.95) translateY(10px);
  transition: transform 0.2s var(--zuoekai-motion-ease-out);
  
  /* 确保在遮罩之上 */
  position: relative;
}

.zuoekai-modal-overlay--active .zuoekai-modal {
  transform: scale(1) translateY(0);
}

/* --- 结构区域 --- */

.zuoekai-modal__header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--zuoekai-color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.zuoekai-modal__title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--zuoekai-color-text);
}

.zuoekai-modal__close {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-right: -8px;
  color: var(--zuoekai-color-text-muted);
  border-radius: var(--zuoekai-radius-sm);
  transition: color 0.2s, background-color 0.2s;
  display: flex;
}

.zuoekai-modal__close:hover {
  color: var(--zuoekai-color-text);
  background-color: var(--zuoekai-color-action-hover-bg);
}

.zuoekai-modal__body {
  padding: 24px;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  color: var(--zuoekai-color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
 
  /* Firefox：使用主题色滚动条 */
  scrollbar-width: thin;
  scrollbar-color: var(--zuoekai-scrollbar-thumb) var(--zuoekai-scrollbar-track);
}

.zuoekai-modal__body::-webkit-scrollbar {
  width: 8px;
}

.zuoekai-modal__body::-webkit-scrollbar-track {
  background: var(--zuoekai-scrollbar-track);
}

.zuoekai-modal__body::-webkit-scrollbar-thumb {
  background: var(--zuoekai-scrollbar-thumb);
  border-radius: 9999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.zuoekai-modal__body::-webkit-scrollbar-thumb:hover {
  background: var(--zuoekai-scrollbar-thumb-hover);
  background-clip: padding-box;
}

.zuoekai-modal__footer {
  padding: 16px 24px;
  border-top: 1px solid var(--zuoekai-color-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  background-color: var(--zuoekai-color-surface-page); /* 微妙的底色区分 */
  border-radius: 0 0 var(--zuoekai-radius-lg) var(--zuoekai-radius-lg);
}

/* --- 尺寸变体 --- */

.zuoekai-modal--sm { max-width: 400px; }
.zuoekai-modal--md { max-width: 500px; }
.zuoekai-modal--lg { max-width: 800px; }
.zuoekai-modal--xl { max-width: 1140px; }

.zuoekai-modal--full {
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  border-radius: 0;
}

/* 适配移动端 */
@media (max-width: 640px) {
  .zuoekai-modal {
    max-width: 100% !important;
    margin: 0;
    align-self: flex-end; /* 底部弹出风格可选，这里保持居中或视情况调整 */
    border-radius: var(--zuoekai-radius-lg) var(--zuoekai-radius-lg) 0 0;
  }
  
  /* 如果希望移动端是从底部升起 */
  /*
  .zuoekai-modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
  .zuoekai-modal-overlay--active .zuoekai-modal {
    transform: translateY(0);
  }
  */
}