.nu-app .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 36px; border: 0; border-radius: var(--nu-r-pill); font-size: .84375rem; font-weight: 600; }
.nu-app .btn-primary { background: var(--nu-primary); color: var(--nu-on-primary); } .nu-app .btn-primary:hover { background: var(--nu-primary-hover); }
.nu-app .btn-secondary { background: var(--nu-surface-3); color: var(--nu-text); }
.nu-app .btn-ghost { background: transparent; color: var(--nu-text-muted); } .nu-app .btn-ghost:hover { background: var(--nu-surface-2); color: var(--nu-text); }
.nu-app .btn-danger-soft { background: var(--nu-danger-soft); color: var(--nu-danger); }
.nu-app .btn-sm { min-height: 32px; } .nu-app .btn-icon { width: 36px; padding: 0; }
.nu-app .btn.is-loading .nu-icon { display: none; }
.nu-app .btn.is-loading::before { content: ""; width: 16px; height: 16px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: nu-spin .8s linear infinite; }
.nu-card { background: var(--nu-surface-1); border-radius: var(--nu-r-lg); box-shadow: var(--nu-shadow-card); min-width: 0; }
.nu-card-header, .nu-card-body, .nu-feature { padding: 20px; }
.nu-illustration { display: inline-flex; width: 80px; height: 80px; color: var(--nu-primary); } .nu-illustration svg { width: 100%; height: 100%; } .nu-illustration .cls-1 { fill: currentColor; }
.nu-menu, .nu-app .dropdown-menu { background: var(--nu-surface-3); color: var(--nu-text); border: 0; border-radius: var(--nu-r-md); padding: 6px; box-shadow: var(--nu-shadow-pop); }
.nu-app .dropdown-item { display: flex; align-items: center; gap: 8px; min-height: 34px; border-radius: var(--nu-r-sm); color: var(--nu-text); }
.nu-app .dropdown-item:hover, .nu-app .dropdown-item:focus { background: var(--nu-surface-2); }
.nu-app .dropdown-divider { border-color: var(--nu-line-strong); }
.nu-tabs { display: flex; max-width: 100%; overflow-x: auto; gap: 4px; border-bottom: 1px solid var(--nu-line-strong); scrollbar-width: none; }
.nu-tabs .nav-link, .nu-tabs > a { position: relative; display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 16px; border: 0; border-radius: 0; background: transparent; color: var(--nu-text-muted); font-weight: 500; white-space: nowrap; text-decoration: none; transition: color .15s ease-out, background-color .15s ease-out; }
.nu-tabs .nav-link:hover, .nu-tabs > a:hover { color: var(--nu-text); background: var(--nu-surface-2); text-decoration: none; }
.nu-tabs .nav-link.active, .nu-tabs > a.active { color: var(--nu-text); font-weight: 600; background: transparent; }
.nu-tabs .nav-link.active::after, .nu-tabs > a.active::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 3px; border-radius: 3px 3px 0 0; background: var(--nu-primary); }
.nu-tabs .nu-count { padding: 1px 8px; font-size: .75rem; background: var(--nu-surface-3); color: var(--nu-text-muted); }
.nu-tabs .active .nu-count { background: var(--nu-primary); color: var(--nu-on-primary); }
.nu-group-nav { display: flex; flex-direction: column; gap: 4px; padding: 8px; background: var(--nu-surface-1); border-radius: var(--nu-r-lg); box-shadow: var(--nu-shadow-card); }
.nu-group-nav .nu-group-item { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2px 12px; width: 100%; padding: 10px 12px 10px 16px; border: 0; border-radius: var(--nu-r-md); background: transparent; color: var(--nu-text-muted); text-align: left; transition: background-color .15s ease-out, color .15s ease-out; }
.nu-group-nav .nu-group-item:hover { background: var(--nu-surface-2); color: var(--nu-text); }
.nu-group-nav .nu-group-item.active { background: var(--nu-surface-3); color: var(--nu-text); }
.nu-group-nav .nu-group-item.active::before { content: ""; position: absolute; left: 4px; top: 10px; bottom: 10px; width: 3px; border-radius: 3px; background: var(--nu-primary); }
.nu-group-item-origin { grid-column: 1; font-size: .72rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--nu-text-subtle); }
.nu-group-item-title { grid-column: 1; font-weight: 600; color: inherit; overflow-wrap: anywhere; }
.nu-group-item-meta { grid-column: 1; font-size: .78rem; overflow-wrap: anywhere; }
.nu-group-item .nu-count { grid-column: 2; grid-row: 1 / span 3; padding: 2px 10px; font-size: .78rem; font-weight: 600; font-variant-numeric: tabular-nums; background: var(--nu-surface-3); color: var(--nu-text); }
.nu-group-item.active .nu-count { background: var(--nu-primary); color: var(--nu-on-primary); }
.nu-chip, .nu-meta, .nu-status, .nu-count { display: inline-flex; align-items: center; gap: 8px; padding: 4px 10px; border-radius: var(--nu-r-pill); background: var(--nu-surface-2); }
.nu-filter-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: var(--nu-r-pill); background: var(--nu-primary-soft); color: var(--nu-primary-text); }
.nu-code { padding: 3px 7px; border-radius: var(--nu-r-xs); background: var(--nu-surface-3); font: 500 .75rem var(--nu-font-mono); }
.nu-stat { padding: 14px 16px; border-radius: var(--nu-r-md); background: var(--nu-surface-2); }
.nu-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--nu-text-subtle); }
.nu-dot[data-state="ok"] { background: var(--nu-success); box-shadow: 0 0 0 3px var(--nu-success-soft); } .nu-dot[data-state="bad"] { background: var(--nu-danger); box-shadow: 0 0 0 3px var(--nu-danger-soft); } .nu-dot[data-state="warn"] { background: var(--nu-warning); box-shadow: 0 0 0 3px var(--nu-warning-soft); }
.nu-callout { padding: 16px; border-radius: var(--nu-r-md); background: var(--nu-primary-soft); }
.nu-callout[data-tone="danger"] { background: var(--nu-danger-soft); } .nu-callout[data-tone="warning"] { background: var(--nu-warning-soft); } .nu-callout[data-tone="success"] { background: var(--nu-success-soft); }
.nu-empty { text-align: center; padding: 40px; color: var(--nu-text-muted); }
.nu-skeleton { height: 20px; border-radius: var(--nu-r-sm); background: var(--nu-surface-3); }
.nu-spinner { width: 22px; height: 22px; border: 2px solid var(--nu-line-strong); border-top-color: var(--nu-primary); border-radius: 50%; animation: nu-spin .8s linear infinite; }
@keyframes nu-spin { to { transform: rotate(360deg); } }
.nu-app .form-control, .nu-app .form-select { background-color: var(--nu-surface-2); color: var(--nu-text); border: 1px solid transparent; border-radius: var(--nu-r-md); min-height: 36px; }
.nu-app .form-control:focus, .nu-app .form-select:focus { border-color: var(--nu-primary); box-shadow: var(--nu-focus-ring); }
.nu-search { position: relative; display: flex; align-items: center; }
.nu-search > .nu-icon { position: absolute; left: 12px; color: var(--nu-text-muted); pointer-events: none; }
.nu-search > .form-control { padding-left: 38px; }
.nu-search > button { position: absolute; right: 6px; }
.nu-app .modal-content, .nu-app .offcanvas { background: var(--nu-surface-1); color: var(--nu-text); border: 0; border-radius: var(--nu-r-xl); box-shadow: var(--nu-shadow-pop); }
.nu-app .modal-header, .nu-app .modal-footer { border-color: var(--nu-line); }
.nu-app .modal-backdrop { --bs-backdrop-opacity: .6; }
.nu-toast-container { position: fixed; right: 20px; bottom: 20px; z-index: 1100; }
.nu-app .toast { background: var(--nu-surface-3); color: var(--nu-text); border: 0; }
.nu-app .toast-body { display: flex; align-items: center; gap: 12px; }
.nu-toast-icon { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; color: var(--nu-success); background: var(--nu-success-soft); }
.nu-toast-danger { color: var(--nu-danger); background: var(--nu-danger-soft); }
.nu-toast-warning { color: var(--nu-warning); background: var(--nu-warning-soft); }
.nu-styleguide-colours { display: flex; flex-wrap: wrap; gap: 6px; }
.nu-swatch { display: inline-flex; gap: 6px; align-items: center; padding: 4px; background: var(--nu-surface-2); border-radius: var(--nu-r-xs); font-size: .75rem; }
.nu-swatch::before { content: ""; width: 18px; height: 18px; border-radius: 4px; background: var(--swatch); }
.nu-swatch-bg { --swatch: var(--nu-bg); } .nu-swatch-surface-1 { --swatch: var(--nu-surface-1); } .nu-swatch-surface-2 { --swatch: var(--nu-surface-2); } .nu-swatch-surface-3 { --swatch: var(--nu-surface-3); } .nu-swatch-surface-inset { --swatch: var(--nu-surface-inset); }
.nu-swatch-text { --swatch: var(--nu-text); } .nu-swatch-text-muted { --swatch: var(--nu-text-muted); } .nu-swatch-text-subtle { --swatch: var(--nu-text-subtle); }
.nu-swatch-primary { --swatch: var(--nu-primary); } .nu-swatch-primary-hover { --swatch: var(--nu-primary-hover); } .nu-swatch-primary-text { --swatch: var(--nu-primary-text); } .nu-swatch-primary-soft { --swatch: var(--nu-primary-soft); }
.nu-swatch-secondary { --swatch: var(--nu-secondary); } .nu-swatch-secondary-text { --swatch: var(--nu-secondary-text); } .nu-swatch-secondary-soft { --swatch: var(--nu-secondary-soft); }
.nu-swatch-danger { --swatch: var(--nu-danger); } .nu-swatch-danger-soft { --swatch: var(--nu-danger-soft); } .nu-swatch-success { --swatch: var(--nu-success); } .nu-swatch-success-soft { --swatch: var(--nu-success-soft); } .nu-swatch-warning { --swatch: var(--nu-warning); } .nu-swatch-warning-soft { --swatch: var(--nu-warning-soft); }
.nu-swatch-art-a { --swatch: var(--nu-art-a); } .nu-swatch-art-b { --swatch: var(--nu-art-b); } .nu-swatch-art-c { --swatch: var(--nu-art-c); } .nu-swatch-art-accent { --swatch: var(--nu-art-accent); }