/* Koozco.UI "professional" look: sober, data-first, enterprise-grade. OPT-IN: an app turns it on with data-ui="pro" on <html> (static in index.html, no script, CSP unchanged),
   so every rule below is scoped by :root[data-ui="pro"] and the other apps keep the identity of koozco-ui.css untouched. Used today by Optics and Platform.
   Load it AFTER koozco-ui.css and before the app's own app.css.
   Principles: slate-grey neutrals plus ONE restrained accent (--brand), a small type scale (22 / 17 / 15 / 14 / 13 / 12 px), 1 px hairline borders, 6-8 px radii, no gradients,
   tight density, 18 px icons in the sidebar and a quiet active state (tinted background plus a thin accent bar). Both themes meet WCAG AA text contrast. */

:root[data-ui="pro"] {
  --rz-primary: #2456a4;
  --rz-primary-dark: #1b4380;
  --rz-primary-light: #e8eef8;
  --rz-success: #2a7a55;
  --rz-info: #3b6ea5;
  --rz-warning: #9a6414;
  --rz-border-radius: calc(var(--radius-md) - 2px);
  --brand: #2456a4;
  --brand-text: #2456a4;
  --on-brand: #fff;
  --ink: #1c2330;
  --muted: #586275;
  --line: #dfe3e9;
  --surface: #f3f4f7;
  --card: #fff;
  --card-alt: #f7f8fa;
  --nav-ink: #3c4658;
  --nav-hover: #eef0f4;
  --nav-active-bg: #e8eef8;
  --nav-active-ink: #183f7a;
  --link: #1f4f93;
  --avatar-bg: #e6e9ef;
  --avatar-ink: #384255;
  --eyebrow: #586275;
  --head-ink: #4a5467;
  --separator: #6b7485;
  --action: #1f4f93;
  --icon-muted: #657084;
  --track: #dde2ea;
  --shadow: #1018281f;
  --header-title-weight: 650;
  --header-title-tracking: -.1px;
  /* Sober defaults of the theme tokens (same names as koozco-ui.css) */
  --radius-button: calc(var(--radius-md) - 2px);
  --radius-chip: calc(var(--radius-sm) - 1px);
  --elevation-popover: 0 8px 24px var(--shadow);
  --space-page-x: 28px; --space-page-top: 22px; --space-page-bottom: 12px;
  --space-header-x: 20px; --header-h: 56px;
  --space-panel: 16px; --space-panel-gap: 16px; --space-section: 16px;
  --space-form: 14px; --space-form-grid: 12px;
  --space-nav-y: 7px; --space-nav-x: 10px;
  --space-cell-y: 9px;
  --control-h: 36px;
}

:root[data-ui="pro"][data-theme="dark"] {
  --brand-text: color-mix(in srgb, var(--brand) 45%, #fff);
  --ink: #e7eaf0;
  --muted: #a3acbb;
  --line: #2a313c;
  --surface: #0e1217;
  --card: #151a22;
  --card-alt: #1a2029;
  --nav-ink: #c3cad6;
  --nav-hover: #1c222c;
  --nav-active-bg: #1b2a40;
  --nav-active-ink: var(--brand-text);
  --link: var(--brand-text);
  --avatar-bg: #263041;
  --avatar-ink: #c5d0e2;
  --eyebrow: #a3acbb;
  --head-ink: #aeb6c4;
  --separator: #8791a2;
  --focus: #8ec1ff;
  --action: #2d6bc4;
  --icon-muted: #98a3b6;
  --track: #2a3340;
  --shadow: #0009;
  --rz-primary-light: color-mix(in srgb, var(--brand) 35%, #0e1217);
  --rz-on-primary: #0e1217;
}

/* Type scale */
:root[data-ui="pro"] body { font-size: var(--base-size); line-height: 1.45; -webkit-font-smoothing: antialiased; }
:root[data-ui="pro"] h1 { font-size: 22px; letter-spacing: -.3px; font-weight: var(--heading-weight); margin: 0 0 4px; }
:root[data-ui="pro"] h2 { font-size: 17px; letter-spacing: -.2px; }
:root[data-ui="pro"] h3 { font-size: 15px; letter-spacing: -.1px; margin-bottom: 4px; }
:root[data-ui="pro"] p { line-height: 1.5; }

/* Shell: narrower sidebar and a slimmer header */
:root[data-ui="pro"] .sidebar { --nav-pad: 10px; padding: 14px var(--nav-pad) 20px; }
:root[data-ui="pro"] .brand { gap: 10px; padding: 4px 8px 12px; font-size: 18px; letter-spacing: -.4px; }
:root[data-ui="pro"] .brand-mark { width: 32px; height: 32px; border-radius: var(--radius-md); font-size: 22px; }
:root[data-ui="pro"] .brand-caption { font-size: 9px; letter-spacing: 1.2px; margin-top: 2px; }
:root[data-ui="pro"] main { padding: var(--space-page-top) var(--space-page-x) var(--space-page-bottom); }
:root[data-ui="pro"] footer { padding: 10px var(--space-page-x) 18px; }
:root[data-ui="pro"] .app-header { min-height: var(--header-h); padding: 0 var(--space-header-x); gap: 10px; }
:root[data-ui="pro"] .app-header-title { font-size: 15px; }
:root[data-ui="pro"] .hdr-btn { border-radius: calc(var(--radius-md) - 2px); }
:root[data-ui="pro"] .hdr-popover { border-radius: var(--radius-md); box-shadow: var(--elevation-popover); }
:root[data-ui="pro"] .gsb-field { border-radius: calc(var(--radius-md) - 2px); min-height: 38px; }
:root[data-ui="pro"] .gsb-input { min-height: 36px; }
:root[data-ui="pro"] .avatar { width: 30px; height: 30px; }

/* Sidebar: quiet captions, 18 px icons, subtle active state */
:root[data-ui="pro"] .nav-caption { font-size: 10.5px; letter-spacing: .9px; font-weight: 600; color: var(--nav-muted); padding: 0 10px; margin: 18px 0 4px; }
:root[data-ui="pro"] .sidebar nav .nav-caption:first-child { margin-top: 6px; }
:root[data-ui="pro"] .sidebar nav a { position: relative; gap: 10px; padding: var(--space-nav-y) var(--space-nav-x); margin: 1px 0; border-radius: calc(var(--radius-md) - 2px); font-size: 13px; font-weight: 500; line-height: 20px; }
:root[data-ui="pro"] .sidebar nav a .rzi { flex: none; width: 18px; font-size: 18px; line-height: 20px; color: var(--nav-icon); }
:root[data-ui="pro"] .sidebar nav a.nav-sub { margin-left: 20px; padding: 5px 10px; font-size: 12.5px; }
:root[data-ui="pro"] .sidebar nav a.nav-sub .rzi { font-size: 16px; width: 16px; }
:root[data-ui="pro"] .sidebar nav a.active { color: var(--nav-active-ink); background: var(--nav-active-bg); font-weight: 600; }
:root[data-ui="pro"] .sidebar nav a.active .rzi { color: var(--nav-active-ink); }
:root[data-ui="pro"] .sidebar nav a.active::before { content: ""; position: absolute; left: calc(-1 * var(--nav-pad)); top: 6px; bottom: 6px; width: 3px; border-radius: 0 2px 2px 0; background: var(--nav-active-bar); }
:root[data-ui="pro"] .sidebar nav a.nav-sub.active::before { left: calc(-1 * var(--nav-pad) - 20px); }
:root[data-ui="pro"] .sidebar nav .nav-group-toggle { gap: 10px; margin: 1px 0; border-radius: calc(var(--radius-md) - 2px); font-size: 13px; line-height: 20px; }
:root[data-ui="pro"] .sidebar nav .nav-group-toggle .rzi { flex: none; width: 18px; font-size: 18px; line-height: 20px; color: var(--nav-icon); }
:root[data-ui="pro"] .sidebar nav .nav-group-toggle .nav-chevron .rzi { width: 16px; font-size: 16px; }
:root[data-ui="pro"] .sidebar nav .nav-toggle .rzi { font-size: 18px; }
@media (pointer: coarse) {
  :root[data-ui="pro"] .sidebar nav a { min-height: 44px; }
  :root[data-ui="pro"] .sidebar nav .nav-group-toggle { min-height: 44px; }
}

@media (max-width: 1200px) {
  :root[data-ui="pro"] .sidebar { --nav-pad: 8px; }
  :root[data-ui="pro"] main { padding: 20px 20px 12px; }
  :root[data-ui="pro"] .app-header { padding: 0 16px; }
}

/* Collapsed rail (wide screens only): 72 px, as in koozco-ui.css */
@media (min-width: 901px) {
  :root[data-ui="pro"][data-sidebar="collapsed"] .app-shell { grid-template-columns: 72px minmax(0, 1fr); }
  :root[data-ui="pro"][data-sidebar="collapsed"] .sidebar { --nav-pad: 12px; width: 72px; }
  :root[data-ui="pro"][data-sidebar="collapsed"] .brand { padding: 4px 0 12px; }
  :root[data-ui="pro"][data-sidebar="collapsed"] .nav-caption { margin: 12px 8px; }
  :root[data-ui="pro"][data-sidebar="collapsed"] .sidebar nav a { padding: 8px 0; }
  :root[data-ui="pro"][data-sidebar="collapsed"] .sidebar nav .nav-group-toggle { padding: 8px 0; }
  :root[data-ui="pro"][data-sidebar="collapsed"] .sidebar nav a.nav-sub { margin-left: 0; padding: 8px 0; }
  :root[data-ui="pro"][data-sidebar="collapsed"] .sidebar nav a.nav-sub.active::before { left: calc(-1 * var(--nav-pad)); }
  :root[data-ui="pro"][data-sidebar="collapsed"] .sidebar nav a.nav-sub .rzi { font-size: 18px; width: 18px; }
}
:root[data-ui="pro"] .nav-tip { left: 80px; border-radius: calc(var(--radius-md) - 2px); font-size: 12px; }

/* Page heading and panels */
:root[data-ui="pro"] .page-heading { margin-bottom: var(--space-section); gap: 16px; }
:root[data-ui="pro"] .page-heading p { font-size: 13px; }
:root[data-ui="pro"] .eyebrow { font-size: 10.5px; letter-spacing: .9px; font-weight: 600; }
:root[data-ui="pro"] .panel { padding: var(--space-panel); border-radius: var(--radius-md); margin-bottom: var(--space-panel-gap); }
:root[data-ui="pro"] .panel-heading { margin-bottom: 12px; }
:root[data-ui="pro"] .panel-title { font-size: 15px; letter-spacing: -.1px; margin-bottom: 2px; }
:root[data-ui="pro"] .panel-heading p { font-size: 12px; }

/* Tables, toolbars, forms and Radzen */
:root[data-ui="pro"] .table-toolbar { margin-bottom: 12px; gap: 8px; }
:root[data-ui="pro"] .rz-grid-table thead th { font-size: 11.5px !important; padding: 8px 12px !important; letter-spacing: .2px; }
:root[data-ui="pro"] .rz-grid-table td { font-size: 13px !important; padding: var(--space-cell-y) 12px !important; }
:root[data-ui="pro"] .rz-grid-table thead th > div { padding: 0 !important; }
:root[data-ui="pro"] .rz-grid-table thead th .rz-column-title { padding-left: 0 !important; font-size: inherit !important; line-height: 1.3 !important; }
:root[data-ui="pro"] .rz-grid-table thead th .rz-column-title-content { font-size: inherit !important; line-height: 1.3 !important; }
:root[data-ui="pro"] .rz-grid-table tbody tr:hover td { background: var(--card-alt) !important; }
:root[data-ui="pro"] .rz-button { border-radius: var(--radius-button) !important; }
:root[data-ui="pro"] .rz-badge { border-radius: var(--radius-chip) !important; }
:root[data-ui="pro"] .rz-alert { border-radius: calc(var(--radius-md) - 2px); }
:root[data-ui="pro"] .rz-dialog { border-radius: calc(var(--radius-lg) - 2px) !important; }
:root[data-ui="pro"] .rz-dialog-title { font-size: 17px !important; }
:root[data-ui="pro"] .text-input, :root[data-ui="pro"] .native-select { border-radius: calc(var(--radius-md) - 2px); min-height: var(--control-h); }
:root[data-ui="pro"] .form-stack { gap: var(--space-form); }
:root[data-ui="pro"] .form-grid { gap: var(--space-form-grid); }
:root[data-ui="pro"] .settings-section, :root[data-ui="pro"] .perm-group, :root[data-ui="pro"] .agenda-panel, :root[data-ui="pro"] .slot-picker { border-radius: var(--radius-md); }
:root[data-ui="pro"] .state-panel { padding: 36px 20px; }
:root[data-ui="pro"] .button-link { border-radius: var(--radius-button); min-height: var(--control-h); }
:root[data-ui="pro"] .payment-banner { padding-left: var(--space-page-x); padding-right: var(--space-page-x); }

@media (max-width: 600px) {
  :root[data-ui="pro"] main { padding: 16px 12px 8px; }
  :root[data-ui="pro"] .app-header { min-height: 56px; padding: 0 6px 0 10px; }
  :root[data-ui="pro"] .page-heading h1 { font-size: 20px; }
  :root[data-ui="pro"] .panel { padding: 12px; }
  :root[data-ui="pro"] footer { padding: 12px; }
}