/* ========================================
   表单验证样式 - 适配你的现有设计
======================================== */

/* 验证失败状态 */
.form-control.is-invalid {
    border-color: #dc3545 !important;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23dc3545' viewBox='0 0 12 12'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 4.6 2.4 2.4m0-2.4L5.8 7'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
    padding-right: calc(1.5em + 0.75rem);
}

/* 选择框验证失败状态 */
select.form-control.is-invalid {
    background-position: right calc(2.25rem + 0.1875rem) center, right calc(0.375em + 0.1875rem) center;
}

/* 错误信息样式 */
.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #dc3545;
    font-weight: 500;
    line-height: 1.4;
}

/* 深色背景表单的错误状态（适配你的.lp-quote-form） */
.lp-quote-form .form-control.is-invalid {
    border-color: #dc3545 !important;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23ffffff' viewBox='0 0 12 12'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 4.6 2.4 2.4m0-2.4L5.8 7'/%3e%3c/svg%3e");
}

.lp-quote-form .invalid-feedback {
    color: #ff9999;
}

/* 提交错误信息样式 */
.submission-error {
    background: linear-gradient(135deg, #dc3545, #e74c3c);
    color: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin: 20px 0;
    box-shadow: 0 4px 20px rgba(220, 53, 69, 0.3);
    border: none;
}

.submission-error h5 {
    margin-bottom: 10px;
    font-weight: 600;
}

.submission-error p {
    margin-bottom: 10px;
    line-height: 1.5;
}

.submission-error p:last-child {
    margin-bottom: 0;
}

.submission-error a {
    color: #fff;
    text-decoration: underline;
}

/* 按钮加载状态 */
.lp-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 平滑动画 */
.form-control,
.invalid-feedback {
    transition: all 0.3s ease;
}

/* 焦点状态增强 */
.form-control:focus-visible {
    outline: 2px solid #ff7a2f;
    outline-offset: 2px;
}

/* 响应式调整 */
@media (max-width: 576px) {
    .invalid-feedback {
        font-size: 0.8rem;
    }
    
    .submission-error {
        padding: 15px;
        margin: 15px 0;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    .form-control,
    .invalid-feedback {
        transition: none;
    }
}
/* ========================================
   可选的国际化优化 - 添加到现有CSS文件末尾
   （非必需，现有CSS已经很好了）
======================================== */

/* 🌍 多语言字体优化 */
/* 🌍 多语言字体优化 - 增强版 */
.invalid-feedback {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", 
                 "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
                 "Noto Sans CJK SC", "Source Han Sans SC", 
                 "Helvetica Neue", Helvetica, Arial,
                 "Noto Sans", "Liberation Sans", sans-serif;
    /* 确保中文、阿拉伯文、俄文、印地语等都能正确显示 */
    font-feature-settings: "kern" 1; /* 字距调整 */
    text-rendering: optimizeLegibility; /* 优化渲染 */
}
/* 📱 移动端多语言文本优化 */
@media (max-width: 576px) {
    .invalid-feedback {
        word-wrap: break-word;      /* 长词汇自动换行 */
        overflow-wrap: break-word;  /* 兼容性更好的换行 */
        hyphens: auto;              /* 自动连字符 */
    }
}

/* ✅ 可选：成功状态样式（目前验证器没用到，但可以预留） */
.form-control.is-valid {
    border-color: #28a745;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' fill='%2328a745' viewBox='0 0 8 8'%3e%3cpath d='m2.3 6.73.8-.8-.8-.8 1.2-1.2.8.8 1.6-1.6L7.3 3.7 4.8 6.2z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.valid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #28a745;
    font-weight: 500;
}

/* 🎯 RTL语言支持（阿拉伯语、希伯来语等） */
[dir="rtl"] .form-control.is-invalid {
    background-position: left calc(0.375em + 0.1875rem) center;
    padding-left: calc(1.5em + 0.75rem);
    padding-right: 0.75rem;
}

[dir="rtl"] .invalid-feedback {
    text-align: right;
}

/* 🔤 大字体模式支持（无障碍） */
@media (min-resolution: 2dppx) and (max-width: 768px) {
    .invalid-feedback {
        font-size: 1rem;           /* 高分辨率小屏幕上字体稍大 */
    }
}

/* 🌙 深色模式用户偏好支持 */
@media (prefers-color-scheme: dark) {
    .submission-error {
        background: linear-gradient(135deg, #ff4757, #ff3838);
        box-shadow: 0 4px 20px rgba(255, 71, 87, 0.4);
    }
}