:root {
    --app-bg: #f5f7fb;
    --app-surface: #ffffff;
    --app-bg-subtle: #f7f8fa;
    --app-surface-alt: #f8fafc;
    --app-text: #111827;
    --app-text-muted: #6b7280;
    --app-border: #e5e7eb;
    --app-hover: rgba(15, 23, 42, 0.08);
    --app-bg-hover: #f1f5f9;
    --app-primary: var(--color-sf-primary, var(--sf-primary, #2563eb));
    --app-primary-text: #ffffff;
    --app-success-bg: #dcfce7;
    --app-success-text: #166534;
    --app-success-border: #86efac;
    --app-danger-bg: #fee2e2;
    --app-danger-text: #991b1b;
    --app-danger-border: #fca5a5;
    --app-warning-bg: #fef3c7;
    --app-warning-text: #92400e;
    --app-warning-border: #fcd34d;
    --app-info-bg: #dbeafe;
    --app-info-text: #1e40af;
    --app-info-border: #93c5fd;
}

body[data-sf-theme$="-dark"], body[data-sf-theme="highcontrast"] {
    --app-bg: #0f172a;
    --app-surface: #111827;
    --app-bg-subtle: #1e293b;
    --app-surface-alt: #1e293b;
    --app-text: #e5e7eb;
    --app-text-muted: #94a3b8;
    --app-border: #374151;
    --app-hover: rgba(148, 163, 184, 0.2);
    --app-bg-hover: #1e293b;
    --app-success-bg: #14532d;
    --app-success-text: #86efac;
    --app-success-border: #166534;
    --app-danger-bg: #7f1d1d;
    --app-danger-text: #fca5a5;
    --app-danger-border: #991b1b;
    --app-warning-bg: #78350f;
    --app-warning-text: #fcd34d;
    --app-warning-border: #92400e;
    --app-info-bg: #1e3a8a;
    --app-info-text: #93c5fd;
    --app-info-border: #1e40af;
}

body[data-sf-theme="material3"] { --app-primary: rgb(103, 80, 164); --app-primary-text: #ffffff; }
body[data-sf-theme="material3-dark"] { --app-primary: rgb(208, 188, 255); --app-primary-text: #381e72; }

html, body {
    margin: 0; padding: 0; height: 100%;
    background: var(--app-bg); color: var(--app-text);
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    font-variant-numeric: tabular-nums;
}

.e-icons { font-family: 'e-icons' !important; }

.main-body {
    height: 100vh; display: flex; flex-direction: column;
    overflow: hidden; min-width: 0;
    transition: margin-left 0.2s ease, width 0.2s ease;
    background: var(--app-bg); color: var(--app-text);
}

.top-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 0 16px; height: 48px; min-height: 48px;
    border-bottom: 1px solid var(--app-border);
    background: var(--app-surface); flex-shrink: 0;
}
.top-bar .spacer { flex: 1; }
.top-bar-user { font-size: 0.8125rem; color: var(--app-text-muted); margin-right: 4px; }
.top-bar-icon-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border: 1px solid var(--app-border);
    border-radius: 6px; background: transparent; color: var(--app-text); cursor: pointer;
}
.top-bar-icon-btn:hover { background: var(--app-hover); }

.page-content { flex: 1; overflow: auto; padding: 16px 20px; }

/* Sidebar */
.e-sidebar {
    background: var(--app-surface) !important;
    border-right: 1px solid var(--app-border) !important;
    color: var(--app-text) !important;
    overflow: hidden;
    z-index: 1000 !important;
}
.app-sidebar.e-dock.e-close .sidebar-header .sidebar-title,
.app-sidebar.e-dock.e-close .nav-item span:not(.e-icons):not(.menu-icon) { display: none; }
.app-sidebar.e-dock.e-close .sidebar-header { justify-content: center; padding: 10px 0; }
.app-sidebar.e-dock.e-close .nav-item { justify-content: center; padding: 10px 0; margin: 6px 8px; }

.sidebar-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 10px 10px 16px; border-bottom: 1px solid var(--app-border);
    min-height: 48px; box-sizing: border-box;
}
.sidebar-title { font-weight: 600; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-toggle.e-btn {
    min-width: 28px; width: 28px; height: 28px; padding: 0 !important;
    border-radius: 4px; opacity: 0.75; flex-shrink: 0; color: var(--app-text) !important;
}
.sidebar-toggle.e-btn:hover { opacity: 1; background: var(--app-hover); }

.nav-list { list-style: none; margin: 8px 0; padding: 0; }
.nav-item {
    display: flex; align-items: center; gap: 8px; padding: 7px 16px;
    font-size: 0.8125rem; border-radius: 4px; margin: 1px 6px;
    text-decoration: none; color: var(--app-text); transition: background 0.15s;
}
.nav-item .menu-icon { width: 14px; height: 14px; flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 2; }
.nav-item:hover { background: var(--app-hover); }
.app-sidebar .nav-list .nav-item.active {
    background: var(--app-primary) !important; color: var(--app-primary-text) !important;
}

/* Pages */
.page-header, .page-title {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 16px; gap: 12px; flex-wrap: wrap;
}
.page-header h2, .page-title { margin: 0; font-size: 1.125rem; font-weight: 600; }
.page-header-right { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.page-header-right .filter-search-box {
    margin-right: 8px;
}

.filter-search-box {
    width: min(100%, 320px);
    display: inline-flex;
    align-items: center;
    border-radius: 6px;
    overflow: hidden;
}
.filter-search-box > .e-input-group.e-control-wrapper,
.filter-search-box > .e-control-wrapper.e-input-group {
    flex: 1 1 auto;
    min-width: 0;
    border: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
}
.filter-search-box > .e-input-group.e-control-wrapper .e-input,
.filter-search-box > .e-control-wrapper.e-input-group .e-input {
    padding-right: 8px;
}
.filter-search-box > .e-input-group-icon {
    cursor: pointer;
    padding: 0 10px;
    min-width: 34px;
    height: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid var(--app-border);
}

.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--app-surface); border: 1px solid var(--app-border); border-radius: 8px; padding: 16px; }
.stat-label { color: var(--app-text-muted); font-size: 13px; }
.stat-value { font-size: 28px; font-weight: 700; margin: 8px 0 4px; }
.stat-sub { color: var(--app-text-muted); font-size: 12px; }
.dashboard-charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.chart-panel { background: var(--app-surface); border: 1px solid var(--app-border); border-radius: 8px; padding: 16px; }
.chart-panel h3 { margin: 0 0 12px; font-size: 16px; }

/* Forms / dialogs (Syncfusion style) */
.form-section { padding: 8px 4px; }
.form-row {
    display: grid; grid-template-columns: 130px 1fr;
    align-items: center; gap: 8px; margin-bottom: 10px;
}
.form-row label { font-size: 0.8125rem; font-weight: 500; color: var(--app-text); }
.form-row.align-top { align-items: start; }
.form-row.align-top > label { padding-top: 6px; }
.form-row > .e-multi-line-input,
.form-row > .e-input-group.e-multi-line-input {
    width: 100%;
    min-width: 0;
}
.form-row .e-multi-line-input textarea.e-input {
    width: 100% !important;
    max-width: 100%;
    box-sizing: border-box;
    resize: vertical;
}

.hex-color-input-wrap {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    min-width: 0;
    width: 100%;
}
.hex-color-input-wrap > .e-textbox-container,
.hex-color-input-wrap > .e-input-group {
    flex: 0 0 200px;
    max-width: 240px;
}
.hex-color-picker-inline .e-container {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}
.hex-color-picker-inline .e-container .e-custom-palette.e-palette-group {
    max-height: 132px;
    overflow: auto;
}
.hex-color-picker-inline .e-container .e-palette .e-tile {
    width: 24px;
    height: 24px;
    min-width: 24px;
    margin: 2px;
}

.text-bg-color-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 48px;
    padding: 12px 16px;
    border-radius: 6px;
    border: 1px solid var(--app-border);
    font-size: 14px;
    font-weight: 500;
    box-sizing: border-box;
}
.pwd-dialog-form .form-row {
    grid-template-columns: 100px 1fr;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.form-grid .span-2 { grid-column: span 2; }
.form-grid label { display: block; margin-bottom: 4px; font-size: 0.8125rem; color: var(--app-text-muted); }

.dropdown-with-copy {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}
.dropdown-with-copy .e-dropdownlist,
.dropdown-with-copy .e-ddl {
    flex: 1 1 auto;
    min-width: 0;
}
.dropdown-with-copy .ddl-copy-btn.e-btn {
    min-width: 44px;
    width: auto;
    height: 28px;
    padding: 0 8px !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

.color-swatch {
    display: inline-block; width: 14px; height: 14px; border-radius: 3px;
    border: 1px solid var(--app-border); vertical-align: middle; margin-right: 6px;
}

/* Syncfusion compact */
.e-grid .e-rowcell, .e-grid .e-headercell { padding: 5px 8px !important; }
.e-dialog .e-dlg-content { padding: 16px 20px !important; }
.e-dialog .e-footer-content { padding: 10px 20px 16px !important; }

/* 展览数据管理弹窗：Grid 纵向撑满（弹窗渲染在 body，须用全局样式） */
.data-manager-dialog.e-dialog {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.data-manager-dialog .e-dlg-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.data-manager-dialog .e-dlg-header-content,
.data-manager-dialog .e-footer-content {
    flex-shrink: 0;
}

.data-manager-dialog .e-dlg-content {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding-bottom: 12px !important;
}

.data-manager-dialog .manager-container {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.data-manager-dialog .manager-container > .e-tab {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.data-manager-dialog .manager-container .e-tab-header {
    flex-shrink: 0;
}

.data-manager-dialog .manager-container .e-tab > .e-content {
    flex: 1 1 auto;
    min-height: 0;
    height: calc(100% - 36px) !important;
    overflow: hidden;
}

.data-manager-dialog .manager-container .e-tab .e-content .e-item,
.data-manager-dialog .manager-container .e-tab .e-content > div[id^="e-content-tab"] {
    height: 100% !important;
    min-height: 0;
    overflow: hidden;
    box-sizing: border-box;
}

.data-manager-dialog .manager-container .e-tab .e-content .e-item.e-active,
.data-manager-dialog .manager-container .e-tab .e-content > div[id^="e-content-tab"][style*="display: block"] {
    display: flex !important;
    flex-direction: column !important;
}

.data-manager-dialog .sub-grid-panel {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.data-manager-dialog .grid-actions {
    flex-shrink: 0;
}

.data-manager-dialog .sub-grid-body {
    flex: 1 1 0;
    min-height: 0;
    height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.data-manager-dialog .sub-grid-body > div {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.data-manager-dialog .sub-grid-body .e-grid {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    height: 100% !important;
    display: flex !important;
    flex-direction: column !important;
}

.data-manager-dialog .sub-grid-body .e-grid .e-gridheader {
    flex-shrink: 0;
}

.data-manager-dialog .sub-grid-body .e-grid .e-gridcontent {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    height: auto !important;
    overflow-y: auto !important;
}

.data-manager-dialog .sub-grid-body .e-grid .e-gridpager {
    flex-shrink: 0;
}

.data-manager-dialog .custom-pager {
    flex-shrink: 0;
}

/* Theme switcher */
.theme-switcher-wrap { position: relative; display: inline-flex; align-items: center; }
.theme-switcher-icon { width: 17px; height: 17px; display: block; }
.theme-switcher-backdrop { position: fixed; inset: 0; z-index: 10998; background: transparent; }
.theme-switcher-panel {
    position: absolute; top: calc(100% + 6px); right: 0; z-index: 10999;
    min-width: 200px; max-height: 70vh; overflow-y: auto; padding: 6px;
    border-radius: 8px; border: 1px solid var(--app-border);
    background: var(--app-surface); color: var(--app-text);
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.18);
}
.theme-switcher-item {
    display: block; width: 100%; text-align: left; padding: 8px 12px;
    border: none; border-radius: 6px; background: transparent;
    color: var(--app-text); font-size: 0.8125rem; cursor: pointer;
}
.theme-switcher-item:hover { background: var(--app-bg-hover); }
.theme-switcher-item.is-active {
    background: color-mix(in srgb, var(--app-primary) 18%, transparent);
    color: var(--app-primary); font-weight: 600;
}

/* Login */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--app-bg); }
.login-card { width: 360px; background: var(--app-surface); border: 1px solid var(--app-border); border-radius: 12px; padding: 32px; }
.login-card h2 { margin: 0 0 8px; text-align: center; }
.login-sub { text-align: center; color: var(--app-text-muted); margin-bottom: 24px; }
.login-field { margin-bottom: 16px; }
.login-field label { display: block; margin-bottom: 4px; font-size: 13px; }
.login-btn { width: 100%; margin-top: 8px; }
.alert-danger { background: var(--app-danger-bg); color: var(--app-danger-text); padding: 8px 12px; border-radius: 6px; margin-bottom: 12px; font-size: 13px; }
.forbidden-msg, .auth-loading { padding: 24px; color: var(--app-text-muted); }

.e-grid .e-headercell .e-headerchkcelldiv { display: flex; align-items: center; height: 100%; }
.e-grid .e-headercell .e-checkbox-wrapper { display: flex; align-items: center; }

/* Toast：暗色主题下避免标题/正文撞色，层级高于模态框 */
body > .e-toast-container,
html body .e-toast-container {
    position: fixed !important;
    z-index: 2147483647 !important;
    pointer-events: none;
}
.e-toast-container .e-toast {
    pointer-events: auto;
    box-sizing: border-box;
    min-width: min(360px, calc(100vw - 32px));
    max-width: min(520px, calc(100vw - 32px));
    border-radius: 8px;
    box-shadow: 0 4px 18px color-mix(in srgb, var(--app-text) 10%, transparent);
}
.e-toast-container .e-toast .e-toast-message {
    flex: 1 1 auto;
    min-width: 0;
    align-self: stretch;
}
.e-toast-container .e-toast.e-toast-success,
.e-toast-container .e-toast.e-toast-success:hover {
    background-color: var(--app-success-bg) !important;
    border: 1px solid var(--app-success-border) !important;
    color: var(--app-success-text) !important;
}
.e-toast-container .e-toast.e-toast-success .e-toast-message,
.e-toast-container .e-toast.e-toast-success .e-toast-message .e-toast-title,
.e-toast-container .e-toast.e-toast-success .e-toast-message .e-toast-content,
.e-toast-container .e-toast.e-toast-success .e-toast-icon,
.e-toast-container .e-toast.e-toast-success .e-toast-close-icon {
    color: var(--app-success-text) !important;
}
.e-toast-container .e-toast.e-toast-danger,
.e-toast-container .e-toast.e-toast-danger:hover {
    background-color: var(--app-danger-bg) !important;
    border: 1px solid var(--app-danger-border) !important;
    color: var(--app-danger-text) !important;
}
.e-toast-container .e-toast.e-toast-danger .e-toast-message,
.e-toast-container .e-toast.e-toast-danger .e-toast-message .e-toast-title,
.e-toast-container .e-toast.e-toast-danger .e-toast-message .e-toast-content,
.e-toast-container .e-toast.e-toast-danger .e-toast-icon,
.e-toast-container .e-toast.e-toast-danger .e-toast-close-icon {
    color: var(--app-danger-text) !important;
}