/* ==========================================================================
   YUNHE 后台管理系统 - 全局样式
   现代浅色主题：slate 中性色 + 品牌蓝，适配桌面与移动端
   ========================================================================== */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-soft: #eff6ff;
    --primary-ring: rgba(37, 99, 235, 0.15);

    --sidebar-width: 260px;
    --content-bg: #f8fafc;
    --surface: #ffffff;
    --border: #e5e7eb;
    --border-soft: #f1f5f9;

    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
    --shadow: 0 1px 3px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
    --shadow-md: 0 8px 24px -6px rgba(16, 24, 40, 0.12);
    --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--content-bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ==========================================================================
   布局骨架
   ========================================================================== */
.app {
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: var(--sidebar-width);
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition);
}

.brand {
    height: 64px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-soft);
    flex-shrink: 0;
}

.brand .logo {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    box-shadow: 0 4px 10px -2px rgba(37, 99, 235, 0.4);
}

.brand .brand-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.01em;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 14px;
    overflow-y: auto;
}

.sidebar-nav .nav-section {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding: 8px 12px 10px;
}

.sidebar-nav a.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
    transition: background var(--transition), color var(--transition);
}

.sidebar-nav a.nav-link i {
    font-size: 17px;
    width: 20px;
    text-align: center;
    color: var(--text-muted);
    transition: color var(--transition);
}

.sidebar-nav a.nav-link:hover {
    background: var(--border-soft);
    color: var(--text);
}

.sidebar-nav a.nav-link:hover i {
    color: var(--text-secondary);
}

.sidebar-nav a.nav-link.active {
    background: var(--primary-soft);
    color: var(--primary);
}

.sidebar-nav a.nav-link.active i {
    color: var(--primary);
}

/* 分组菜单 */
.menu-group {
    margin-top: 6px;
}

.menu-group-title {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 10px 12px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: background var(--transition), color var(--transition);
}

.menu-group-title > i:first-child {
    font-size: 17px;
    width: 20px;
    text-align: center;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: color var(--transition);
}

.menu-group-title > span {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.menu-group-title:hover {
    background: var(--border-soft);
    color: var(--text);
}

.menu-group-title:hover > i:first-child {
    color: var(--text-secondary);
}

.menu-group-arrow {
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform var(--transition);
}

.menu-group.open .menu-group-arrow {
    transform: rotate(180deg);
}

.menu-group-body {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--transition);
}

.menu-group.open .menu-group-body {
    grid-template-rows: 1fr;
}

.menu-group-inner {
    overflow: hidden;
}

.menu-group-body .nav-link {
    padding-left: 44px;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-soft);
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* 移动端抽屉遮罩 */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: 99;
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   主区域
   ========================================================================== */
.main {
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: 64px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 90;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.menu-toggle {
    display: none;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition);
}

.menu-toggle:hover {
    background: var(--border-soft);
}

.menu-toggle i {
    font-size: 20px;
}

.topbar .page-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 15px;
    flex-shrink: 0;
}

.content {
    flex: 1;
    padding: 24px;
}

/* ==========================================================================
   卡片
   ========================================================================== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.card-header h5 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.card-body {
    padding: 24px;
}

/* ==========================================================================
   表格
   ========================================================================== */
.table {
    margin: 0;
    --bs-table-hover-bg: #f8fafc;
}

.table thead th {
    background: #f8fafc;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.02em;
    border-bottom: 1px solid var(--border);
    padding: 12px 20px;
    white-space: nowrap;
}

.table tbody td {
    padding: 14px 20px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-soft);
    color: var(--text-secondary);
    font-size: 14px;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table code {
    color: var(--primary);
    background: var(--primary-soft);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 12px;
}

/* 徽章 */
.badge-soft {
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    display: inline-block;
    line-height: 1.4;
}

.badge-success { background: #ecfdf5; color: #059669; }
.badge-danger  { background: #fef2f2; color: #dc2626; }
.badge-muted   { background: #f1f5f9; color: #64748b; }
.badge-info    { background: #eff6ff; color: #2563eb; }
.badge-warning { background: #fffbeb; color: #b45309; }

/* ==========================================================================
   按钮
   ========================================================================== */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all var(--transition);
}

.btn-primary {
    --bs-btn-bg: var(--primary);
    --bs-btn-border-color: var(--primary);
    --bs-btn-hover-bg: var(--primary-hover);
    --bs-btn-hover-border-color: var(--primary-hover);
    --bs-btn-active-bg: var(--primary-hover);
    --bs-btn-active-border-color: var(--primary-hover);
    --bs-btn-disabled-bg: var(--primary);
    --bs-btn-disabled-border-color: var(--primary);
    --bs-btn-focus-shadow-rgb: 37, 99, 235;
}

.btn-outline-primary {
    --bs-btn-color: var(--primary);
    --bs-btn-border-color: var(--border);
    --bs-btn-hover-bg: var(--primary-soft);
    --bs-btn-hover-border-color: var(--primary);
    --bs-btn-hover-color: var(--primary);
    --bs-btn-active-bg: var(--primary-soft);
    --bs-btn-active-border-color: var(--primary);
    --bs-btn-active-color: var(--primary);
}

.btn-outline-secondary {
    --bs-btn-color: var(--text-secondary);
    --bs-btn-border-color: var(--border);
    --bs-btn-hover-bg: var(--border-soft);
    --bs-btn-hover-border-color: var(--border);
    --bs-btn-hover-color: var(--text);
}

.btn-outline-danger {
    --bs-btn-color: #dc2626;
    --bs-btn-border-color: var(--border);
    --bs-btn-hover-bg: #fef2f2;
    --bs-btn-hover-border-color: #fca5a5;
    --bs-btn-hover-color: #dc2626;
}

.btn-outline-warning {
    --bs-btn-color: #b45309;
    --bs-btn-border-color: var(--border);
    --bs-btn-hover-bg: #fffbeb;
    --bs-btn-hover-border-color: #f59e0b;
    --bs-btn-hover-color: #b45309;
    --bs-btn-active-bg: #fffbeb;
    --bs-btn-active-border-color: #f59e0b;
    --bs-btn-active-color: #b45309;
}

/* 图标按钮 */
.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

/* ==========================================================================
   表单
   ========================================================================== */
.form-label {
    font-weight: 500;
    color: var(--text);
    margin-bottom: 6px;
    font-size: 13px;
}

.form-control, .form-select {
    border-color: var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    padding: 8px 12px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

/* 下拉箭头需要右侧留白，避免与文字重叠（Bootstrap 默认 padding-right: 2.25rem 被上方简写覆盖） */
.form-select {
    padding-right: 2.5rem;
}

/* 条款库选择器：与普通输入框区分（浅色强调底 + 图标前缀 + 强调边框） */
.terms-lib-picker {
    position: relative;
    display: inline-flex;
    align-items: center;
}
.terms-lib-picker > .bi-journal-text {
    position: absolute;
    left: 11px;
    z-index: 2;
    color: var(--primary);
    font-size: 14px;
    pointer-events: none;
}
.terms-lib-picker .form-select {
    padding-left: 34px;
    min-width: 280px;
    width: auto;
    border-color: var(--primary-ring);
    background-color: var(--primary-soft);
    font-weight: 500;
}
.terms-lib-picker .form-select:focus {
    background-color: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-ring);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-ring);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-ring);
}

.form-switch .form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.input-group-text {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text-muted);
    transition: border-color var(--transition), color var(--transition);
}

.input-group {
    border-radius: var(--radius-sm);
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus {
    border-color: var(--primary);
    border-left: none;
    box-shadow: none;
}

.input-group:focus-within {
    box-shadow: 0 0 0 4px var(--primary-ring);
}

.input-group:focus-within .input-group-text {
    border-color: var(--primary);
    color: var(--primary);
}

/* 权限勾选分组 */
.permission-group {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
}

.permission-group .pg-header {
    background: #f8fafc;
    padding: 10px 16px;
    font-weight: 600;
    font-size: 13px;
    color: var(--text);
    border-bottom: 1px solid var(--border-soft);
}

.permission-group .pg-body {
    padding: 14px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.permission-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all var(--transition);
    user-select: none;
}

.permission-item:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.permission-item:has(.form-check-input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
}

/* ==========================================================================
   登录页
   ========================================================================== */
.login-page {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    /* 兜底浅蓝：与 Vanta CLOUDS2「明净蔚蓝」配色接近，避免加载时深蓝→亮蓝的闪变 */
    background: linear-gradient(135deg, #a8d9ff 0%, #8fceff 50%, #7fc9ff 100%);
}

.login-card {
    position: relative;
    z-index: 1;
    width: 400px;
    max-width: 100%;
    background: #fff;
    border-radius: 20px;
    padding: 44px 40px;
    box-shadow: 0 24px 60px -12px rgba(2, 6, 23, 0.35);
}

.login-card .brand {
    border-bottom: none;
    padding: 0 0 6px;
    justify-content: center;
    height: auto;
}

.login-card .brand .brand-name {
    font-size: 20px;
    font-weight: 600;
}

.login-card .login-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 30px;
    font-size: 14px;
}

.login-card .btn-primary {
    padding: 11px;
    font-size: 15px;
    border-radius: var(--radius);
}

/* ==========================================================================
   仪表盘统计卡片
   ========================================================================== */
.stat-card {
    padding: 22px;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: box-shadow var(--transition), transform var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.15;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 13px;
}

/* ==========================================================================
   分页
   ========================================================================== */
.pagination .page-link {
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    margin: 0 2px;
    transition: all var(--transition);
}

.pagination .page-link:hover {
    background: var(--border-soft);
    color: var(--text);
}

.pagination .page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* ==========================================================================
   通用工具
   ========================================================================== */
.text-muted { color: var(--text-muted) !important; }

.empty-state {
    text-align: center;
    padding: 56px 0;
    color: var(--text-muted);
    font-size: 14px;
}

.flash-alert {
    margin-bottom: 20px;
    border-radius: var(--radius);
    border: none;
    box-shadow: var(--shadow-sm);
}

.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-md);
    }

    .main {
        margin-left: 0;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .content {
        padding: 16px;
    }

    .topbar {
        padding: 0 16px;
    }
}

@media (max-width: 575.98px) {
    .hide-sm {
        display: none !important;
    }

    .card-header {
        padding: 14px 16px;
    }

    .card-body {
        padding: 16px;
    }

    .login-card {
        padding: 32px 24px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-card .stat-value {
        font-size: 24px;
    }

    .table tbody td,
    .table thead th {
        padding: 10px 14px;
    }
}

/* 隐藏数字输入框的增减按钮（spinner） */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

/* 日期选择框：宽度/高度与普通输入框对齐，优化日历图标 */
input[type="date"] {
    display: block;
    width: 100%;
    height: calc(1.5em + 1rem + 2px);
    line-height: 1.5;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    opacity: 0.55;
    transition: opacity var(--transition);
}

input[type="date"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}

/* 关联单据链（全链追溯面板） */
.doc-chain {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.doc-node {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 180px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.doc-node:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.doc-node.current {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.doc-node-tag {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.doc-node-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.doc-node-sub {
    font-size: 12px;
    color: var(--text-secondary);
}

.doc-chain-arrow {
    color: var(--text-muted);
    font-size: 18px;
}