/* =====================================================================
   OpenCogLab v1.0 —— 后台样式
   文件 : public/assets/css/app.css
   依据 : PRD §12.14（原生 CSS，不引入任何 UI 框架 / 图标库 / 外部字体）
   风格 : 极简专业后台 · 卡片式布局 · 浅色主题
   ===================================================================== */

:root {
    /* 颜色令牌 */
    --color-primary: #2563EB;
    --color-primary-strong: #1D4ED8;
    --color-primary-soft: #3B82F6;
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-text: #0F172A;
    --color-text-dim: #64748B;
    --color-border: #E2E8F0;
    --color-success: #16A34A;
    --color-danger: #DC2626;
    --color-warning: #D97706;

    /* 尺寸令牌 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
    --shadow-focus: 0 0 0 3px rgba(37, 99, 235, .18);

    --font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --space: 16px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-strong); }

code {
    background: #EEF2FF;
    color: #3730A3;
    padding: 1px 6px;
    border-radius: 6px;
    font-size: 12.5px;
}

/* ---------- 结构 ---------- */
.shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
    background: linear-gradient(180deg, #FFFFFF 0%, #FBFDFF 100%);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(6px);
}
.topbar__inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--color-text); }
.brand__mark {
    width: 32px; height: 32px; border-radius: 9px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
    color: #fff; font-weight: 700; font-size: 13px;
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-sm);
}
.brand__text { font-weight: 600; font-size: 16px; letter-spacing: .2px; }
.brand__tag {
    font-size: 11px; color: var(--color-primary-strong);
    background: #EFF6FF; border: 1px solid #DBEAFE;
    padding: 1px 7px; border-radius: 999px;
}

.topnav { display: inline-flex; align-items: center; gap: 12px; }
.topnav__link { color: var(--color-text-dim); font-weight: 500; padding: 6px 10px; border-radius: 8px; transition: all .16s ease; }
.topnav__link:hover { color: var(--color-primary-strong); background: #F1F5F9; }
.topnav__link.is-active { color: var(--color-primary-strong); background: #EFF6FF; }
.topnav__sep { width: 1px; height: 18px; background: var(--color-border); }
.topnav__user { color: var(--color-text-dim); font-size: 13px; }

.content { flex: 1; max-width: 1120px; width: 100%; margin: 0 auto; padding: 28px 24px; }

.footer {
    max-width: 1120px; width: 100%; margin: 0 auto;
    padding: 20px 24px 32px;
    color: var(--color-text-dim); font-size: 12.5px;
    display: flex; justify-content: space-between; gap: 12px;
}
.footer__dim { color: #94A3B8; }

/* ---------- 页面 ---------- */
.page--narrow { max-width: 720px; margin: 0 auto; }
.page__head { margin-bottom: 20px; }
.page__title { font-size: 24px; font-weight: 600; margin: 0 0 4px; }
.page__sub { color: var(--color-text-dim); margin: 0; }

.page-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.page-bar__title { font-size: 20px; font-weight: 600; margin: 0; }
.page-bar__meta { color: var(--color-text-dim); font-size: 13px; }

/* ---------- 步骤条 ---------- */
.stepper {
    list-style: none; display: flex; flex-wrap: wrap; gap: 8px 4px;
    padding: 0; margin: 0 0 20px;
}
.stepper__item { display: inline-flex; align-items: center; gap: 8px; color: var(--color-text-dim); }
.stepper__item:not(:last-child)::after { content: "→"; margin: 0 6px; color: #CBD5E1; }
.stepper__dot {
    width: 24px; height: 24px; border-radius: 999px;
    border: 1px solid var(--color-border); background: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 600;
}
.stepper__item.is-active { color: var(--color-primary-strong); font-weight: 600; }
.stepper__item.is-active .stepper__dot { background: var(--color-primary); border-color: var(--color-primary); color: #fff; box-shadow: var(--shadow-focus); }
.stepper__item.is-done .stepper__dot { background: #ECFDF5; border-color: #A7F3D0; color: var(--color-success); }

/* ---------- 卡片 ---------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
}
.card--center { text-align: center; }
.card__title { font-size: 16px; font-weight: 600; margin: 0 0 12px; }
.card__hint { color: var(--color-text-dim); margin: 0 0 16px; }
.card__actions { display: flex; gap: 10px; margin-top: 18px; justify-content: flex-end; }
.card--center .card__actions { justify-content: center; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    border: 1px solid transparent; border-radius: var(--radius-sm);
    padding: 9px 16px; font-size: 14px; font-weight: 500; cursor: pointer;
    font-family: inherit; transition: transform .12s ease, box-shadow .16s ease, background .16s ease;
    text-decoration: none;
}
.btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-strong); color: #fff; box-shadow: var(--shadow-md); }
.btn--ghost { background: #fff; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { background: #F8FAFC; border-color: #CBD5E1; }
.btn--danger { background: #fff; color: var(--color-danger); border-color: #FECACA; }
.btn--danger:hover { background: #FEF2F2; }
.btn--sm { padding: 5px 10px; font-size: 13px; }
.btn[disabled] { opacity: .6; cursor: not-allowed; transform: none; }

/* ---------- 表单 ---------- */
.form { display: flex; flex-direction: column; gap: 14px; }
.form__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form__row { display: flex; flex-direction: column; gap: 6px; }
.form__label { font-size: 13px; color: var(--color-text-dim); font-weight: 500; }
.form__input {
    border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    padding: 10px 12px; font-size: 14px; font-family: inherit; color: var(--color-text);
    background: #fff; transition: border-color .16s ease, box-shadow .16s ease;
    width: 100%;
}
.form__input::placeholder { color: #94A3B8; }
.form__input:hover { border-color: #CBD5E1; }
.form__input:focus { outline: none; border-color: var(--color-primary); box-shadow: var(--shadow-focus); }
.form__input.is-invalid { border-color: var(--color-danger); }
.form__error { color: var(--color-danger); font-size: 12.5px; }
.form__hint { color: var(--color-text-dim); font-size: 12.5px; margin: 0; }

/* ---------- 提示条 ---------- */
.alert {
    border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 16px;
    font-size: 13.5px; border: 1px solid transparent;
    animation: alert-in .2s ease;
}
.alert--error { background: #FEF2F2; color: #991B1B; border-color: #FECACA; }
.alert--success { background: #ECFDF5; color: #065F46; border-color: #A7F3D0; }
.alert--info { background: #EFF6FF; color: #1E40AF; border-color: #DBEAFE; }
.alert--warn { background: #FFFBEB; color: #92400E; border-color: #FDE68A; }

@keyframes alert-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* ---------- 清单 ---------- */
.checklist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.checklist__item {
    display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 10px;
    padding: 10px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    background: #fff;
}
.checklist__icon { font-weight: 700; text-align: center; }
.checklist__item.is-ok .checklist__icon { color: var(--color-success); }
.checklist__item.is-fail .checklist__icon { color: var(--color-danger); }
.checklist__item.is-warn .checklist__icon { color: var(--color-warning); }
.checklist__label { font-weight: 500; }
.checklist__detail { color: var(--color-text-dim); font-size: 12.5px; text-align: right; }

/* ---------- 表格 ---------- */
.table-wrap {
    background: #fff; border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm);
}
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--color-border); }
.table th { background: #F8FAFC; color: var(--color-text-dim); font-weight: 500; font-size: 12.5px; letter-spacing: .3px; }
.table tbody tr { transition: background .14s ease; }
.table tbody tr:hover { background: #F8FAFC; }
.table tbody tr:last-child td { border-bottom: none; }
.table__actions { display: flex; gap: 8px; justify-content: flex-end; }

/* ---------- 标签 ---------- */
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 500; border: 1px solid transparent; }
.tag--draft { background: #F1F5F9; color: #475569; border-color: #E2E8F0; }
.tag--published { background: #ECFDF5; color: #047857; border-color: #A7F3D0; }
.tag--stopped { background: #FEF2F2; color: #B91C1C; border-color: #FECACA; }

/* ---------- 空态 ---------- */
.empty { padding: 56px 24px; text-align: center; color: var(--color-text-dim); }
.empty__title { font-size: 15px; font-weight: 600; color: var(--color-text); margin-bottom: 6px; }

/* ---------- 安装完成 ---------- */
.done-badge {
    width: 56px; height: 56px; border-radius: 999px; margin: 0 auto 14px;
    background: linear-gradient(135deg, #10B981 0%, #34D399 100%);
    color: #fff; font-size: 26px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 24px rgba(16, 185, 129, .28);
}
.done-badge--warn { background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%); box-shadow: 0 10px 24px rgba(245, 158, 11, .28); }

/* ---------- 登录页 ---------- */
.login-wrap { max-width: 400px; margin: 6vh auto 0; }
.login-card { padding: 32px 28px; }
.login-card .card__title { font-size: 18px; text-align: center; margin-bottom: 4px; }
.login-sub { text-align: center; color: var(--color-text-dim); margin: 0 0 22px; font-size: 13px; }
.login-card .btn { width: 100%; }

/* ---------- 筛选栏 ---------- */
.filters { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.filters__input { flex: 1 1 240px; }
.filters__select { flex: 0 0 150px; }

.table__loading { text-align: center; color: var(--color-text-dim); padding: 32px 16px; }
.cell-dim { color: var(--color-text-dim); font-size: 12px; margin-top: 2px; }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 16px; }
.pager__info { color: var(--color-text-dim); font-size: 13px; }

/* ---------- 对话框 ---------- */

/* ⚠️ 必须提升 [hidden] 优先级：浏览器 UA 样式 [hidden]{display:none} 优先级低于下面的
   .modal / .pager（作者样式），否则带 hidden 属性的对话框/分页器会在页面加载时直接显示
   —— 典型表现：/admin/projects 一打开就自动弹出「新建项目」对话框（M3 实测）。 */
[hidden] { display: none !important; }

.modal { position: fixed; inset: 0; z-index: 60; display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(15, 23, 42, .45); backdrop-filter: blur(2px); animation: fade-in .16s ease; }
.modal__panel {
    position: relative; z-index: 1; width: 100%; max-width: 640px;
    background: #fff; border-radius: var(--radius-lg); box-shadow: 0 24px 60px rgba(15, 23, 42, .28);
    max-height: calc(100vh - 80px); display: flex; flex-direction: column;
    animation: modal-in .18s ease;
}
.modal__head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--color-border); }
.modal__title { font-size: 16px; font-weight: 600; margin: 0; }
.modal__close { border: none; background: transparent; font-size: 22px; line-height: 1; color: var(--color-text-dim); cursor: pointer; padding: 0 4px; border-radius: 6px; }
.modal__close:hover { color: var(--color-text); background: #F1F5F9; }
.modal__body { padding: 20px 22px; overflow-y: auto; }
.modal__footer { display: flex; justify-content: flex-end; gap: 10px; padding-top: 8px; }

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(-8px) scale(.99); } to { opacity: 1; transform: none; } }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
    .topbar__inner, .content, .footer { padding-left: 16px; padding-right: 16px; }
    .form__grid { grid-template-columns: 1fr; }
    .footer { flex-direction: column; gap: 4px; }
    .table th:nth-child(4), .table td:nth-child(4) { display: none; }
}

/* =====================================================================
   项目详情 / 配置页（M1 第一批新增，沿用既有设计令牌，不改变既有样式）
   ===================================================================== */

.backlink {
    display: inline-block;
    color: var(--color-text-dim);
    font-size: 13px;
    margin-bottom: 6px;
    transition: color .16s ease;
}
.backlink:hover { color: var(--color-primary-strong); }

.page-bar__actions { display: flex; gap: 8px; flex-wrap: wrap; }
.meta-sep { color: #CBD5E1; margin: 0 2px; }

/* ---------- 分区面板 ---------- */
.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 20px 22px;
    margin-bottom: 20px;
}
.panel__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}
.panel__title { font-size: 16px; font-weight: 600; margin: 0 0 2px; }
.panel__hint { color: var(--color-text-dim); font-size: 13px; margin: 0; }
.panel__actions { display: flex; gap: 8px; flex-shrink: 0; }
.panel__loading { text-align: center; color: var(--color-text-dim); padding: 28px 12px; font-size: 13px; }

/* ---------- 块卡片 ---------- */
.block-list { display: flex; flex-direction: column; gap: 10px; }
.block-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    padding: 14px 16px;
    transition: border-color .16s ease, box-shadow .18s ease, transform .12s ease;
}
.block-card:hover { border-color: #CBD5E1; box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.block-card.is-active { border-color: var(--color-primary); box-shadow: var(--shadow-focus); background: #F8FAFF; }
.block-card__main { min-width: 0; }
.block-card__title { font-weight: 600; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.block-card__meta { color: var(--color-text-dim); font-size: 12.5px; margin-top: 3px; }
.block-card__actions { display: flex; gap: 6px; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }

.pill {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 500;
    background: #F1F5F9;
    color: #475569;
    border: 1px solid var(--color-border);
}
.pill--info { background: #EFF6FF; color: #1E40AF; border-color: #DBEAFE; }
.pill--danger { background: #FEF2F2; color: #B91C1C; border-color: #FECACA; }
.pill--success { background: #ECFDF5; color: #047857; border-color: #A7F3D0; }

/* ---------- 问卷卡片 ---------- */
.survey-list { display: flex; flex-direction: column; gap: 18px; }
.survey-group__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-dim);
    letter-spacing: .4px;
    margin-bottom: 10px;
}
.survey-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #fff;
    margin-bottom: 12px;
    transition: box-shadow .18s ease;
}
.survey-card:hover { box-shadow: var(--shadow-sm); }
.survey-card__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: #F8FAFC;
    border-bottom: 1px solid var(--color-border);
}
.survey-card__title { font-weight: 600; display: flex; align-items: center; gap: 8px; }
.question-table th, .question-table td { padding: 10px 16px; }

/* ---------- 表单分区 / 反应方式子块 ---------- */
.form__section {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-strong);
    margin: 6px 0 0;
    padding-top: 12px;
    border-top: 1px dashed var(--color-border);
}
.form__section:first-child { border-top: none; padding-top: 0; }
.opt-block { display: flex; flex-direction: column; gap: 14px; }
.modal__panel--wide { max-width: 760px; }

@media (max-width: 720px) {
    .panel { padding: 16px 14px; }
    .panel__head { flex-direction: column; align-items: stretch; }
    .panel__actions { justify-content: flex-start; }
    .block-card { flex-direction: column; align-items: stretch; }
    .block-card__actions { justify-content: flex-start; }
    .survey-card__head { flex-direction: column; align-items: flex-start; }
    .survey-card { overflow-x: auto; }
    .question-table { min-width: 520px; }
}

/* =====================================================================
   M2 第一批：素材库 / 数据管理 / 导入导出（沿用既有设计令牌）
   ===================================================================== */

.form__input--file { padding: 7px 10px; font-size: 13px; }
.panel__actions--end { justify-content: flex-end; margin-top: 12px; }

/* ---------- 素材网格 ---------- */
.asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 14px;
}
.asset-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color .16s ease, box-shadow .18s ease, transform .12s ease;
}
.asset-card:hover { border-color: #CBD5E1; box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.asset-card__thumb {
    height: 110px;
    background: #F1F5F9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.asset-card__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.asset-card__icon { font-size: 12px; font-weight: 600; color: var(--color-text-dim); letter-spacing: .5px; }
.asset-card__body { padding: 10px 12px 0; display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.asset-card__name { font-weight: 600; font-size: 13px; word-break: break-all; }
.asset-card__meta { color: var(--color-text-dim); font-size: 12px; }
.asset-card__actions { display: flex; gap: 6px; padding: 10px 12px 12px; flex-wrap: wrap; }

/* ---------- 导入导出 ---------- */
.io-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-bottom: 12px; }
.io-check { display: inline-flex; align-items: center; gap: 6px; color: var(--color-text-dim); font-size: 13px; }
.io-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.io-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.io-card__title { font-weight: 600; font-size: 14px; }
.io-card__hint { color: var(--color-text-dim); font-size: 12.5px; margin: 0; }
.io-card__actions { display: flex; gap: 8px; flex-wrap: wrap; }
.io-result {
    margin-top: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 13px;
    background: #F8FAFC;
    white-space: pre-wrap;
}
.io-result--error { background: #FEF2F2; border-color: #FECACA; color: #991B1B; }
.io-result--success { background: #ECFDF5; border-color: #A7F3D0; color: #065F46; }

/* ---------- 会话详情 ---------- */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px 16px;
    margin-bottom: 16px;
}
.detail-item { font-size: 13px; }
.detail-item__label { color: var(--color-text-dim); font-size: 12px; }
.detail-sub { font-size: 13px; font-weight: 600; color: var(--color-primary-strong); margin: 18px 0 8px; }

@media (max-width: 720px) {
    .asset-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* =====================================================================
   M2 第二批：代码模式编辑器（CodeMirror 6 · oneDark）
   ===================================================================== */

.code-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.code-templates { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.code-templates__label { color: var(--color-text-dim); font-size: 12.5px; }

.code-editor {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.code-editor .cm-editor { height: 460px; font-size: 13px; }
.code-editor .cm-editor.cm-focused { outline: none; }
.code-editor .cm-scroller {
    font-family: "JetBrains Mono", Consolas, Monaco, "Courier New", monospace;
    line-height: 1.6;
}

@media (max-width: 720px) {
    .code-editor .cm-editor { height: 340px; }
}