/*=============================================
 * form.css - Booth Application 表单样式
 * 公共表单组件样式，可被子页面复用
 *=============================================*/

/* 容器（章节底色 + 卡片） */
.ba-section {
    padding: 0;
}

.ba-card {
    background: var(--color-white);
    border-radius: 16px;
    box-shadow: none;
    padding: 48px 56px 56px;
    width: 100%;
    max-width: none;
}

/* 标题 */
.ba-title {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 28px;
    font-weight: 700;
    line-height: 1.2;
}

.ba-required-hint {
    color: var(--color-red);
    font-size: 0.875rem;
    font-weight: 400;
    margin-left: 12px;
    vertical-align: middle;
}

/* 字段 */
.ba-field {
    margin-bottom: 22px;
}

.ba-label {
    display: block;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 6px;
}

.ba-req {
    color: var(--color-red);
    margin-left: 4px;
}

/* 下边框样式输入框（text / number / email / tel 等） */
.ba-input {
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--color-border);
    background: transparent;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--color-text);
    font-family: inherit;
    outline: none;
    border-radius: 0;
    transition: border-color var(--transition-fast);
}

.ba-input::placeholder {
    color: var(--color-mid-gray);
}

.ba-input:focus {
    border-bottom-color: var(--color-accent);
}

/* ===== 自绘下拉 .ba-dd ===== */
.ba-dd {
    position: relative;
}

/* 修复：base.css 的 [id]::before（页内锚点偏移用的 80px 伪元素）
   会命中带 id 的 .ba-dd 容器（#dd-department / #dd-position 等），
   把下拉容器撑高，透明区域盖住相邻字段，导致点击错位/无效。
   此处显式关闭该伪元素。 */
[id].ba-dd::before {
    content: none;
}

/* 原生 select 仅用于取值，视觉隐藏 */
.ba-dd-select {
    display: none;
}

.ba-dd-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--color-border);
    background: transparent;
    padding: 8px 0;
    font-family: inherit;
    font-size: 0.9rem;
    text-align: left;
    color: var(--color-text);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.ba-dd-toggle:hover {
    border-bottom-color: #b0b8c4;
}

.ba-dd.is-open .ba-dd-toggle,
.ba-dd-toggle:focus-visible {
    border-bottom-color: var(--color-accent);
}

.ba-dd-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--color-mid-gray);
    transition: color var(--transition-fast);
}

.ba-dd.is-filled .ba-dd-text {
    color: var(--color-text);
}

.ba-dd-arrow {
    flex-shrink: 0;
    margin-left: 10px;
    color: var(--color-mid-gray);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.ba-dd.is-open .ba-dd-arrow {
    transform: rotate(180deg);
    color: var(--color-accent);
}

/* 展开选项面板 */
.ba-dd-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    z-index: 30;
    max-height: 240px;
    overflow-y: auto;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    padding: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}

.ba-dd.is-open .ba-dd-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.ba-dd-menu li {
    padding: 9px 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.ba-dd-menu li:hover {
    background: #eef4fc;
    color: var(--color-accent);
}

.ba-dd-menu li.is-selected {
    background: #e3eefb;
    color: var(--color-accent);
    font-weight: 600;
}

.ba-dd-menu li.is-selected::after {
    content: '\2713';
    font-weight: 700;
    flex-shrink: 0;
    margin-left: 10px;
    color: var(--color-accent);
}

/* 校验错误 */
.ba-dd-error {
    display: none;
    color: var(--color-red);
    font-size: 0.8rem;
    margin-top: 4px;
}

.ba-dd.has-error .ba-dd-toggle {
    border-bottom-color: var(--color-red);
}

.ba-dd.has-error .ba-dd-error {
    display: block;
}

/* Tel 三栏灰色框 */
.ba-tel-group {
    display: grid;
    grid-template-columns: 1fr 1fr 1.6fr;
    gap: 14px;
    margin-top: 4px;
}

.ba-tel-input {
    background: var(--color-light-gray);
    border: 0;
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 0.9rem;
    color: var(--color-text);
    font-family: inherit;
    outline: none;
    transition: box-shadow var(--transition-fast);
}

.ba-tel-input::placeholder {
    color: var(--color-mid-gray);
}

.ba-tel-input:focus {
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.25);
}

/* 红色提示 */
.ba-notice {
    color: var(--color-red);
    font-size: 0.875rem;
    margin: 18px 0 14px;
}

/* 协议复选框 */
.ba-check {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.9rem;
    color: var(--color-text);
    cursor: pointer;
    line-height: 1.5;
}

.ba-check input[type="checkbox"] {
    margin-top: 4px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-accent);
    flex-shrink: 0;
}

.ba-check strong {
    color: var(--color-primary);
    font-weight: 700;
}

/* ===== 数据保护条例折叠说明（仅点击条例标题展开/收起） ===== */
.ba-dpr-block {
    margin-top: 0;
}

.ba-agree {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.5;
}

.ba-agree input[type="checkbox"] {
    margin-top: 4px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-accent);
    flex-shrink: 0;
}

.ba-agree-label {
    cursor: pointer;
    color: var(--color-text);
}

/* 条例标题按钮：样式跟随正文，仅点击此处触发展开 */
.ba-dpr {
    display: inline-flex;
    align-items: baseline;
    gap: 5px;
    border: 0;
    background: none;
    padding: 0;
    font-family: inherit;
    font-size: inherit;
    font-weight: 700;
    color: var(--color-primary);
    text-align: left;
    cursor: pointer;
    line-height: inherit;
    max-width: 100%;
}

.ba-dpr-text {
    border-bottom: 1px dashed rgba(0, 102, 204, 0.45);
    transition: border-color var(--transition-fast);
}

.ba-dpr:hover .ba-dpr-text {
    border-bottom-style: solid;
    border-bottom-color: var(--color-accent);
}

.ba-dpr:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: 4px;
}

.ba-dpr-arrow {
    flex-shrink: 0;
    align-self: center;
    transition: transform var(--transition-fast);
}

.ba-dpr[aria-expanded="true"] .ba-dpr-arrow {
    transform: rotate(180deg);
}

/* 说明面板：下推/缩回动画（grid-rows 0fr->1fr，占位展开） */
.ba-dpr-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease;
}

.ba-dpr-panel .ba-dpr-inner {
    overflow: hidden;
    min-height: 0;
}

.ba-dpr-panel.is-open {
    grid-template-rows: 1fr;
}

.ba-dpr-note {
    margin: 12px 0 0 26px;
    padding: 12px 16px;
    background: #fff8e6;
    border-left: 3px solid var(--color-accent);
    border-radius: 0 6px 6px 0;
    font-size: 0.85rem;
    line-height: 1.6;
    color: #5a4a1a;
}

.ba-dpr-note strong {
    color: var(--color-primary);
}

/* 提交按钮 */
.ba-submit-wrap {
    text-align: center;
    margin-top: 36px;
}

.ba-submit {
    background: var(--color-accent);
    color: var(--color-white);
    border: 0;
    padding: 14px 64px;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: background var(--transition-fast), transform var(--transition-fast);
    min-width: 160px;
}

.ba-submit:hover {
    background: var(--color-accent-dark);
}

.ba-submit:active {
    transform: scale(0.98);
}

.ba-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 表单成功提示 */
.ba-success {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: none;
}

.ba-success.is-show {
    display: block;
}

/* 表单错误提示 */
.ba-error {
    background: #fdecea;
    color: #c62828;
    border: 1px solid #f5c6cb;
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: none;
}

.ba-error.is-show {
    display: block;
}

/* 响应式 */
@media (max-width: 600px) {
    .ba-section { padding: 0; }
    .ba-card { padding: 32px 22px 40px; border-radius: 12px; }
    .ba-title { font-size: 1.4rem; }
    .ba-required-hint { display: block; margin-left: 0; margin-top: 4px; }
    .ba-tel-group { grid-template-columns: 1fr; gap: 10px; }
}