/* ==========================================================================
   警告提示组件 (Alert)
   ========================================================================== */

.zuoekai-alert {
  display: flex;
  align-items: flex-start;
  padding: 12px 16px;
  border-radius: var(--zuoekai-radius-md);
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid transparent;
}

/* --- 内部元素 --- */

.zuoekai-alert__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-right: 12px;
  margin-top: 1px; /* Optical alignment */
}

.zuoekai-alert__content {
  flex: 1;
  min-width: 0;
}

.zuoekai-alert__title {
  margin: 0 0 4px;
  font-weight: 600;
  font-size: 14px;
}

.zuoekai-alert__message {
  margin: 0;
  opacity: 0.9;
}

.zuoekai-alert__close {
  flex-shrink: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin: -4px -4px 0 8px;
  border-radius: var(--zuoekai-radius-sm);
  transition: background-color 0.2s;
  opacity: 0.6;
}

.zuoekai-alert__close:hover {
  opacity: 1;
  background-color: rgba(0, 0, 0, 0.05);
}

/* --- 颜色变体 (Colors) --- */

/* Info (Default) */
.zuoekai-alert--info {
  background-color: #eff6ff; /* blue-50 */
  border-color: #dbeafe; /* blue-100 */
  color: #1e40af; /* blue-800 */
}
.zuoekai-alert--info .zuoekai-alert__icon { color: #2563eb; }

/* Success */
.zuoekai-alert--success {
  background-color: #f0fdf4; /* emerald-50 */
  border-color: #dcfce7; /* emerald-100 */
  color: #166534; /* emerald-800 */
}
.zuoekai-alert--success .zuoekai-alert__icon { color: #16a34a; }

/* Warning */
.zuoekai-alert--warning {
  background-color: #fffbeb; /* amber-50 */
  border-color: #fef3c7; /* amber-100 */
  color: #92400e; /* amber-800 */
}
.zuoekai-alert--warning .zuoekai-alert__icon { color: #d97706; }

/* Error */
.zuoekai-alert--error {
  background-color: #fef2f2; /* red-50 */
  border-color: #fee2e2; /* red-100 */
  color: #991b1b; /* red-800 */
}
.zuoekai-alert--error .zuoekai-alert__icon { color: #dc2626; }

/* Primary / Brand - 使用 brand-500 混合透明度，背景/边框随主题和暗色模式同步变化 */
.zuoekai-alert--primary {
  background-color: color-mix(in srgb, var(--zuoekai-color-brand-500) 10%, transparent);
  border-color: color-mix(in srgb, var(--zuoekai-color-brand-500) 28%, transparent);
  color: var(--zuoekai-color-text);
}
.zuoekai-alert--primary .zuoekai-alert__icon { color: var(--zuoekai-color-brand-600); }

/* --- 风格变体 (Styles) --- */

/* 强调边框 (Accent Border) */
.zuoekai-alert--accent {
  background-color: var(--zuoekai-color-surface-panel);
  border-left-width: 4px;
}
.zuoekai-alert--accent.zuoekai-alert--info { border-left-color: #2563eb; border-top-color: var(--zuoekai-color-border); border-right-color: var(--zuoekai-color-border); border-bottom-color: var(--zuoekai-color-border); }
.zuoekai-alert--accent.zuoekai-alert--success { border-left-color: #16a34a; border-top-color: var(--zuoekai-color-border); border-right-color: var(--zuoekai-color-border); border-bottom-color: var(--zuoekai-color-border); }
.zuoekai-alert--accent.zuoekai-alert--warning { border-left-color: #d97706; border-top-color: var(--zuoekai-color-border); border-right-color: var(--zuoekai-color-border); border-bottom-color: var(--zuoekai-color-border); }
.zuoekai-alert--accent.zuoekai-alert--error { border-left-color: #dc2626; border-top-color: var(--zuoekai-color-border); border-right-color: var(--zuoekai-color-border); border-bottom-color: var(--zuoekai-color-border); }