/* ==========================================================================
   Helia — Design Tokens
   Aligned to Helia design system (Care / show / theme-Helia.css).
   Brand: Helia blue + orange "Insights" accent. Font: Outfit.
   ==========================================================================
   Use these tokens everywhere. Do NOT introduce raw colour/spacing values.
   ========================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  /* ---------- Brand / Primary (Helia blue — matches theme-Helia.css) ---------- */
  /* Helia brand · primary = teal — clinical-AI palette */
  --primary-25:  #ECFEFF;
  --primary-50:  #CFFAFE;   /* brand-50 */
  --primary-100: #A5F3FC;   /* brand-100 */
  --primary-200: #67E8F9;   /* brand-200 */
  --primary-300: #22D3EE;   /* brand-300 */
  --primary-400: #14B8C8;   /* brand-400 */
  --primary-500: #06B6D4;   /* brand-500 — Helia teal (wordmark) */
  --primary-600: #0891B2;   /* brand-600 — PRIMARY ACTION */
  --primary-700: #0E7490;   /* brand-700 — hover / pressed */
  --primary-800: #155E75;   /* brand-800 */
  --primary-900: #164E63;   /* brand-900 — deep teal */

  /* Canonical Helia alias names (mirror theme-Helia.css) */
  --color-brand-50:  var(--primary-50);
  --color-brand-100: var(--primary-100);
  --color-brand-200: var(--primary-200);
  --color-brand-300: var(--primary-300);
  --color-brand-400: var(--primary-400);
  --color-brand-500: var(--primary-500);
  --color-brand-600: var(--primary-600);
  --color-brand-700: var(--primary-700);
  --color-brand-800: var(--primary-800);
  --color-brand-900: var(--primary-900);

  /* Orange / yellow accents — for the "Insights" wordmark and the logo dot */
  /* Helia accent = coral — warm, distinctive next to the teal primary.
     Variable names kept (--accent-orange) so existing references continue to work. */
  --accent-orange:   #FB7185;     /* coral — accent text + AI highlights */
  --accent-orange-hover: #E11D48; /* deep coral — pressed state */
  --accent-dot:      #FB923C;     /* warm amber dot above the brand mark */

  /* ---------- Grayscale (Untitled UI gray-slate) ---------- */
  --gray-25:  #FCFCFD;
  --gray-50:  #F9FAFB;
  --gray-100: #F2F4F7;
  --gray-200: #EAECF0;
  --gray-300: #D0D5DD;
  --gray-400: #98A2B3;
  --gray-500: #667085;
  --gray-600: #475467;
  --gray-700: #344054;
  --gray-800: #1D2939;
  --gray-900: #101828;

  /* ---------- Semantic colours ---------- */
  --success-50:  #ECFDF3;
  --success-200: #ABEFC6;
  --success-500: #12B76A;
  --success-700: #027A48;

  --warning-50:  #FFFAEB;
  --warning-200: #FEDF89;
  --warning-500: #F79009;
  --warning-700: #B54708;

  --error-50:    #FEF3F2;
  --error-200:   #FECDCA;
  --error-500:   #F04438;
  --error-700:   #B42318;

  --info-50:     #EFF8FF;
  --info-200:    #B2DDFF;
  --info-500:    #2E90FA;
  --info-700:    #175CD3;

  /* ---------- Surfaces ---------- */
  --bg-app:        var(--gray-50);
  --bg-elevated:   #FFFFFF;
  --bg-subtle:     var(--gray-25);
  --bg-muted:      var(--gray-100);
  --bg-tonal:      var(--primary-25);

  /* ---------- Text ---------- */
  --text-primary:   var(--gray-900);
  --text-secondary: var(--gray-700);
  --text-tertiary:  var(--gray-500);
  --text-quaternary:var(--gray-400);
  --text-placeholder:var(--gray-400);
  --text-onbrand:   #FFFFFF;

  /* ---------- Borders ---------- */
  --border-primary:   var(--gray-200);
  --border-secondary: var(--gray-100);
  --border-strong:    var(--gray-300);
  --border-brand:     var(--primary-600);
  --border-focus:     var(--primary-500);

  /* ---------- Spacing (Untitled UI scale, in px) ---------- */
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  20px;
  --sp-6:  24px;
  --sp-8:  32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;

  /* ---------- Border radius ---------- */
  --r-xs:   4px;
  --r-sm:   6px;
  --r-md:   8px;
  --r-lg:   10px;
  --r-xl:   12px;
  --r-2xl:  16px;
  --r-3xl:  24px;
  --r-full: 9999px;

  /* ---------- Shadows (Untitled UI elevation) ---------- */
  --sh-xs:  0 1px 2px 0 rgba(16, 24, 40, 0.05);
  --sh-sm:  0 1px 2px 0 rgba(16, 24, 40, 0.06), 0 1px 3px 0 rgba(16, 24, 40, 0.10);
  --sh-md:  0 2px 4px -2px rgba(16, 24, 40, 0.06), 0 4px 8px -2px rgba(16, 24, 40, 0.10);
  --sh-lg:  0 4px 6px -2px rgba(16, 24, 40, 0.03), 0 12px 16px -4px rgba(16, 24, 40, 0.08);
  --sh-xl:  0 8px 8px -4px rgba(16, 24, 40, 0.03), 0 20px 24px -4px rgba(16, 24, 40, 0.08);
  --sh-2xl: 0 24px 48px -12px rgba(16, 24, 40, 0.18);
  --sh-focus-brand: 0 0 0 4px rgba(43, 101, 180, 0.18);

  /* ---------- Typography ---------- */
  --font-body:  'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: var(--font-body);
  --font-mono:  'JetBrains Mono', Menlo, Monaco, Consolas, monospace;

  --display-xs:  24px;
  --display-sm:  30px;
  --display-md:  36px;
  --display-lg:  48px;

  --text-xs:  12px;
  --text-sm:  14px;
  --text-md:  16px;
  --text-lg:  18px;
  --text-xl:  20px;

  --line-tight:   1.2;
  --line-normal:  1.5;
  --line-relaxed: 1.6;

  --letter-tight: -0.02em;

  /* ---------- Motion ---------- */
  --easing-out: cubic-bezier(0.16, 1, 0.3, 1);
  --d-fast: 120ms;
  --d-mid:  180ms;
  --d-slow: 280ms;

  /* ---------- Z layers ---------- */
  --z-topbar: 30;
  --z-popover: 50;
  --z-modal: 100;
  --z-toast: 200;
}

/* ==========================================================================
   Base resets
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
/* Outfit is geometric — a touch of negative tracking on large text reads better */
h1, h2, .display-md, .display-sm, .display-xs, .display-lg { letter-spacing: var(--letter-tight); }
/* Universal transition baseline for interactive elements */
button, a, input, select, textarea, .btn { transition: background var(--d-fast) var(--easing-out), border-color var(--d-fast) var(--easing-out), color var(--d-fast) var(--easing-out), box-shadow var(--d-fast) var(--easing-out); }
/* Consistent focus ring across the product */
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: none; box-shadow: var(--sh-focus-brand); }
/* Defensive default: the HTML `hidden` attribute should win over any author display rule. */
[hidden] { display: none !important; }
html, body { margin: 0; padding: 0; background: var(--bg-app); color: var(--text-primary); font-family: var(--font-body); font-size: var(--text-sm); line-height: var(--line-normal); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
/* Hard stop: the page itself should never scroll horizontally. Children that
   genuinely need horizontal scroll (wide tables, sankey, federation textarea)
   must opt-in via their own overflow-x: auto on a scroll container. */
body { overflow-x: hidden; }
a { color: var(--primary-600); text-decoration: none; }
a:hover { color: var(--primary-700); text-decoration: underline; }
code, pre, samp { font-family: var(--font-mono); }

/* ==========================================================================
   Typography utilities
   ========================================================================== */
.display-md { font-size: var(--display-md); font-weight: 700; letter-spacing: var(--letter-tight); line-height: var(--line-tight); color: var(--text-primary); }
.display-sm { font-size: var(--display-sm); font-weight: 700; letter-spacing: var(--letter-tight); line-height: var(--line-tight); color: var(--text-primary); }
.display-xs { font-size: var(--display-xs); font-weight: 700; line-height: var(--line-tight); color: var(--text-primary); }
.text-xl    { font-size: var(--text-xl); font-weight: 600; color: var(--text-primary); }
.text-lg    { font-size: var(--text-lg); font-weight: 600; color: var(--text-primary); }
.text-md    { font-size: var(--text-md); color: var(--text-primary); }
.text-sm    { font-size: var(--text-sm); color: var(--text-secondary); }
.text-xs    { font-size: var(--text-xs); color: var(--text-tertiary); }
.eyebrow    { font-size: var(--text-xs); font-weight: 600; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.06em; }

/* ==========================================================================
   Topbar / Shell
   ========================================================================== */
.topbar {
  /* 3-column grid pins the nav to the true centre — brand and user clusters
     can change width per page (Home vs Cohort Studio etc.) without shifting
     the nav. No more "items jump" between pages. */
  display: grid; align-items: center;
  grid-template-columns: 1fr auto 1fr;
  padding: 12px var(--sp-8);
  /* Frosted-glass effect: translucent + backdrop blur, with a hairline border + soft shadow */
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(208, 213, 221, 0.5);
  box-shadow: 0 1px 0 rgba(16,24,40,0.02), 0 4px 16px -8px rgba(16,24,40,0.06);
  position: sticky; top: 0; z-index: var(--z-topbar);
}
.topbar .brand { justify-self: start; }
.topbar nav.main-nav { justify-self: center; }
.topbar .topbar-right { justify-self: end; }
.topbar .brand { display: flex; align-items: center; gap: var(--sp-4); }
.topbar .brand a { color: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: var(--sp-4); }

/* Helia wordmark — teal mark + amber dot. Sized for brand-mark presence,
   not "label" feel. 5-letter word reads confident at this size. */
.brand-wordmark {
  display: inline-flex; align-items: flex-start; gap: 7px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.025em;
  position: relative;
}
.brand-wordmark .wm-helia { color: var(--primary-600); }
.brand-wordmark .wm-dot {
  position: absolute;
  top: -3px; right: -10px;
  width: 7px; height: 7px;
  background: var(--accent-dot);
  border-radius: 50%;
}

/* Brand stack — wordmark on top, "by Solwe" tag tucked underneath, right-aligned
   so it sits flush with the wordmark's right edge (classic "by [parent]" lockup). */
.topbar .brand .brand-stack {
  display: inline-flex; flex-direction: column;
  align-items: flex-end; justify-content: center;
  gap: 1px;
  line-height: 1;
}
.topbar .brand .by-solwe {
  margin-top: 3px;
  font-size: 8px; font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.12em;
  white-space: nowrap;
}
.topbar .brand .by-solwe strong {
  color: var(--primary-700); font-weight: 700;
}

/* Module sub-label sits next to the wordmark, separated by a vertical rule */
.topbar .brand .module-tag {
  padding-left: var(--sp-4);
  border-left: 1px solid var(--border-primary);
  font-size: 11px; font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.08em;
  line-height: 1.2;
  white-space: nowrap;   /* don't let a long module name wrap + squeeze the nav */
}

.topbar nav.main-nav { display: flex; gap: 6px; flex-wrap: nowrap; align-items: stretch; }
.topbar nav.main-nav a,
.topbar nav.main-nav .nav-trigger {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  color: var(--text-secondary);
  font-weight: 600; font-size: 14.5px;
  letter-spacing: -0.005em;
  line-height: 1;          /* prevents text-baseline drift inside flex */
  white-space: nowrap;
  background: transparent; border: none;
  font-family: inherit; cursor: pointer;
  position: relative;
  transition: background var(--d-fast) var(--easing-out), color var(--d-fast) var(--easing-out);
}
.topbar nav.main-nav a:hover,
.topbar nav.main-nav .nav-trigger:hover,
.topbar nav.main-nav .nav-group:focus-within .nav-trigger {
  background: var(--primary-25); color: var(--primary-700); text-decoration: none;
}
/* Active state: brand-blue label + an underline bar that meets the topbar's bottom edge */
.topbar nav.main-nav a.active,
.topbar nav.main-nav .nav-group.active .nav-trigger {
  color: var(--primary-700); font-weight: 700; background: transparent;
}
.topbar nav.main-nav a.active::after,
.topbar nav.main-nav .nav-group.active .nav-trigger::after {
  content: ''; position: absolute; left: 14px; right: 14px;
  bottom: -13px; height: 3px;
  background: var(--primary-600); border-radius: 3px 3px 0 0;
}
.topbar nav.main-nav .nav-icon {
  width: 18px; height: 18px; flex-shrink: 0;
  color: currentColor; opacity: 0.75;
  stroke-width: 1.8;
  /* Optical alignment — line icons sit ~1px low against text x-height */
  margin-top: -1px;
}
.topbar nav.main-nav .nav-icon-sm { width: 13px; height: 13px; margin-top: 0; }
.topbar nav.main-nav a:hover .nav-icon,
.topbar nav.main-nav .nav-trigger:hover .nav-icon,
.topbar nav.main-nav a.active .nav-icon,
.topbar nav.main-nav .nav-group.active .nav-trigger .nav-icon { opacity: 1; }
.topbar nav.main-nav .nav-external { color: var(--text-tertiary); }
.topbar nav.main-nav .nav-external:hover { color: var(--primary-700); }
.topbar .user { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; font-size: var(--text-xs); }
.topbar .user .tenant { color: var(--text-tertiary); }

/* ==========================================================================
   Canonical chart palette — every SVG chart should pull from these vars so
   we have one consistent visual language. 8 categorical colours, plus muted
   greys for axes/gridlines/tooltips.
   ========================================================================== */
:root {
  --chart-1: #0891B2;   /* Helia teal        — primary series */
  --chart-2: #FB7185;   /* coral             — secondary series */
  --chart-3: #10B981;   /* emerald           — positive / present */
  --chart-4: #7C3AED;   /* purple            — family / context */
  --chart-5: #EF4444;   /* red               — negated / risk */
  --chart-6: #06B6D4;   /* cyan              — historical / archive */
  --chart-7: #F59E0B;   /* amber             — warning / outliers */
  --chart-8: #14B8C8;   /* aqua              — fourth-line accent */
  --chart-grid: #EAECF0;
  --chart-axis: #344054;
  --chart-text: #475467;
  --chart-text-muted: #667085;
  --chart-bg-band: rgba(43,101,180,0.05);  /* subtle reference band */
}

/* ==========================================================================
   Page hero — shared header for every page (h1 + subtitle + breadcrumb + actions)
   ========================================================================== */
.page-hero { margin-bottom: var(--sp-5); }
.page-breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--sp-3);
}
.page-breadcrumb a {
  color: var(--text-secondary); text-decoration: none;
  padding: 2px 6px; margin-left: -6px; border-radius: 4px;
  transition: background var(--d-fast), color var(--d-fast);
}
.page-breadcrumb a:hover { background: var(--primary-25); color: var(--primary-700); }
.page-breadcrumb .bc-sep { color: var(--text-tertiary); font-size: 11px; }
.page-hero-row { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--sp-5); flex-wrap: wrap; }
.page-hero-text { flex: 1 1 360px; min-width: 0; }
.page-eyebrow {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary-25); color: var(--primary-700);
  border-radius: 999px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: var(--sp-2);
}
.page-title {
  font-size: 28px; font-weight: 700; line-height: 1.15;
  color: var(--text-primary); letter-spacing: -0.015em;
  margin: 0;
}
.page-subtitle {
  font-size: var(--text-md); color: var(--text-secondary);
  line-height: 1.55;
  margin: 8px 0 0;
}
.page-hero-actions { display: flex; gap: var(--sp-2); flex-wrap: wrap; flex-shrink: 0; }

/* ==========================================================================
   Empty state — branded "nothing here yet" treatment
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: var(--sp-8) var(--sp-5);
  background: var(--bg-elevated);
  border: 1px dashed var(--border-secondary);
  border-radius: var(--r-xl);
}
.empty-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 64px; height: 64px;
  background: var(--primary-25); color: var(--primary-600);
  border-radius: 50%;
  margin-bottom: var(--sp-4);
}
.empty-icon svg { width: 28px; height: 28px; }
.empty-title { font-size: var(--text-lg); font-weight: 700; color: var(--text-primary); margin: 0 0 var(--sp-2); }
.empty-message { font-size: var(--text-sm); color: var(--text-secondary); max-width: 460px; margin: 0 auto var(--sp-5); line-height: 1.6; }
.empty-cta { display: inline-flex; }

/* ==========================================================================
   Chart typography baseline — every inline-SVG chart inherits these so
   axes/labels look identical across KM, calibration, ROC, love plot, lab
   trends, sankey, histograms.
   ========================================================================== */
svg text { font-family: var(--font-body); }
svg .chart-axis-label { font-size: 11px; fill: var(--chart-text); font-weight: 500; }
svg .chart-tick       { font-size: 10px; fill: var(--chart-text-muted); font-family: var(--font-mono); }
svg .chart-grid       { stroke: var(--chart-grid); stroke-width: 1; }
svg .chart-axis-line  { stroke: var(--chart-axis); stroke-width: 1.25; }

/* ==========================================================================
   Section heading rhythm — every card uses <h2> for its section title.
   Standardise size/weight/color so cards across the app feel cut from one cloth.
   ========================================================================== */
.card > h2,
.card > .row > h2 {
  font-size: var(--text-md);    /* ~16px */
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.005em;
  line-height: 1.3;
}
.card > h2 + p.muted,
.card > .row > h2 + p.muted {
  margin-top: -4px;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

/* Sub-section / minor heading rhythm */
h3.section-sub {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--text-tertiary);
  margin: var(--sp-4) 0 var(--sp-2);
}

/* ==========================================================================
   Micro-touches — avatar dropdown, toasts, card hover-lift, chart entrance.
   ========================================================================== */

/* Avatar dropdown — clicking/hovering the user chip opens a small menu */
.topbar .user-chip-wrap {
  position: relative;
  outline: none;
}
.topbar .user-chip { cursor: pointer; }
.topbar .user-chip-wrap .user-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 240px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-xl);
  box-shadow: 0 14px 32px -10px rgba(16,24,40,0.16), 0 4px 8px -4px rgba(16,24,40,0.08);
  padding: 6px;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity var(--d-fast), transform var(--d-fast), visibility 0s linear var(--d-fast);
  z-index: var(--z-topbar);
}
.topbar .user-chip-wrap:hover .user-menu,
.topbar .user-chip-wrap:focus-within .user-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
  transition: opacity var(--d-fast), transform var(--d-fast), visibility 0s linear 0s;
}
.topbar .user-chip-wrap .user-menu::before {
  content: ''; position: absolute; left: 0; right: 0; top: -8px; height: 8px;
}
.topbar .user-menu .um-head { padding: 10px 12px; border-bottom: 1px solid var(--border-secondary); margin-bottom: 4px; }
.topbar .user-menu .um-name { font-size: var(--text-sm); font-weight: 600; color: var(--text-primary); }
.topbar .user-menu .um-tenant { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.topbar .user-menu .um-roles { display: flex; gap: 4px; margin-top: 6px; flex-wrap: wrap; }
.topbar .user-menu .um-role { font-size: 9px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; padding: 2px 6px; border-radius: 3px; background: var(--primary-50); color: var(--primary-700); }
.topbar .user-menu .um-auth-source { font-size: 10px; color: var(--text-tertiary); margin-top: 6px; font-weight: 500; }
.topbar .user-menu .um-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: var(--r-md);
  color: var(--text-primary); font-size: var(--text-sm); font-weight: 500;
  text-decoration: none;
  transition: background var(--d-fast), color var(--d-fast);
}
.topbar .user-menu .um-item:hover { background: var(--primary-25); color: var(--primary-700); }
.topbar .user-menu .um-item svg { width: 16px; height: 16px; flex-shrink: 0; opacity: 0.7; }
.topbar .user-menu .um-sep { height: 1px; background: var(--border-secondary); margin: 4px 0; }
.topbar .user-menu .um-signout { color: #B91C1C; }
.topbar .user-menu .um-signout:hover { background: #FEF2F2; color: #991B1B; }

/* Toast notifications */
.toast-stack {
  position: fixed; bottom: 24px; right: 24px; z-index: 250;
  display: flex; flex-direction: column-reverse; gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex; align-items: center; gap: 12px;
  min-width: 280px; max-width: 420px;
  padding: 12px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-md);
  box-shadow: 0 12px 28px -12px rgba(16,24,40,0.30);
  font-size: var(--text-sm); color: var(--text-primary);
  animation: toast-in 0.2s var(--easing-out) both;
}
.toast.out { animation: toast-out 0.2s var(--easing-out) both; }
@keyframes toast-in  { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toast-out { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(20px); } }
.toast-info    { border-left: 3px solid var(--primary-600); }
.toast-success { border-left: 3px solid var(--success-500, #12B76A); }
.toast-warning { border-left: 3px solid var(--warning-500, #F79009); }
.toast-error   { border-left: 3px solid #F04438; }
.toast-msg { flex: 1; line-height: 1.4; }
.toast-x { background: transparent; border: none; color: var(--text-tertiary); cursor: pointer; font-size: 14px; padding: 4px; line-height: 1; }
.toast-x:hover { color: var(--text-primary); }

/* Card hover-lift — applies to any .card that is also a link or has data-clickable */
a > .card, .card.clickable, a.card {
  transition: transform var(--d-fast) var(--easing-out),
              box-shadow var(--d-fast) var(--easing-out),
              border-color var(--d-fast) var(--easing-out);
  cursor: pointer;
}
a > .card:hover, .card.clickable:hover, a.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -8px rgba(16,24,40,0.14), 0 2px 4px -2px rgba(16,24,40,0.06);
  border-color: var(--primary-200);
}

/* Chart entrance animation — subtle fade + slide-up on first render */
@keyframes chart-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card svg[id^="km-"], .card svg[id^="pw-"], .card svg[id^="ce-"],
.card svg[id^="plp-"], .card svg[id^="com-"], .card svg[id^="pt-"] {
  animation: chart-in 0.32s var(--easing-out) both;
}

/* Top-nav dropdown groups (Analyze / Operate / Data).
   Pure-CSS: opens on hover OR keyboard focus-within (Tab into the trigger). */
.topbar nav.main-nav .nav-group { position: relative; }
.topbar nav.main-nav .nav-caret {
  width: 10px; height: 10px; opacity: 0.6;
  margin-top: 1px;
  /* Pull the caret toward the label so dropdown items feel as visually balanced
     as plain items (whose label sits flush against the right padding). */
  margin-left: -2px;
  transition: transform var(--d-fast) var(--easing-out), opacity var(--d-fast);
}
.topbar nav.main-nav .nav-group:hover .nav-caret,
.topbar nav.main-nav .nav-group:focus-within .nav-caret {
  transform: rotate(180deg); opacity: 1;
}
.topbar nav.main-nav .nav-menu {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 280px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-xl);
  box-shadow: 0 14px 32px -10px rgba(16,24,40,0.16), 0 4px 8px -4px rgba(16,24,40,0.08);
  padding: 6px;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity var(--d-fast) var(--easing-out),
              transform var(--d-fast) var(--easing-out),
              visibility 0s linear var(--d-fast);
  z-index: var(--z-topbar);
}
/* Default open paths: hover OR keyboard focus-within */
.topbar nav.main-nav .nav-group:hover .nav-menu,
.topbar nav.main-nav .nav-group:focus-within .nav-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
  transition: opacity var(--d-fast) var(--easing-out),
              transform var(--d-fast) var(--easing-out),
              visibility 0s linear 0s;
}
/* Mouse arbitration: when the user is hovering anywhere in the nav,
   suppress focus-opened menus on *other* groups. Only the group whose
   trigger or menu is under the cursor stays open — eliminates the
   "two menus overlapping" case after a click-then-hover sequence. */
.topbar nav.main-nav:hover .nav-group:not(:hover) .nav-menu {
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity var(--d-fast) var(--easing-out),
              transform var(--d-fast) var(--easing-out),
              visibility 0s linear var(--d-fast);
}
/* Invisible hover-bridge so cursor can travel from trigger to menu without closing */
.topbar nav.main-nav .nav-menu::before {
  content: ''; position: absolute; left: 0; right: 0; top: -10px; height: 10px;
}
.topbar nav.main-nav .nav-menu a {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  color: var(--text-primary); font-weight: 500; font-size: var(--text-sm);
  text-decoration: none; white-space: normal;
  transition: background var(--d-fast), color var(--d-fast);
}
.topbar nav.main-nav .nav-menu a strong {
  display: block; font-weight: 600; line-height: 1.3;
}
.topbar nav.main-nav .nav-menu a small {
  display: block; font-size: 11px; color: var(--text-tertiary);
  font-weight: 400; margin-top: 2px; line-height: 1.4;
}
.topbar nav.main-nav .nav-menu a:hover {
  background: var(--primary-25); color: var(--primary-700);
}
.topbar nav.main-nav .nav-menu a:hover small { color: var(--primary-700); }
.topbar nav.main-nav .nav-menu .nm-icon {
  flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: var(--primary-25);
  border-radius: var(--r-md);
  color: var(--primary-700);
}
.topbar nav.main-nav .nav-menu .nm-icon svg { width: 16px; height: 16px; }

/* Right-side cluster: bell + separator + avatar chip */
.topbar .topbar-right { display: flex; align-items: center; gap: var(--sp-3); }
.topbar .topbar-sep {
  width: 1px; height: 22px; background: var(--border-primary); margin: 0 4px;
}
.topbar .user-chip {
  display: flex; align-items: center; gap: 10px;
  padding: 4px 12px 4px 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: 999px;
  transition: background var(--d-fast), border-color var(--d-fast), box-shadow var(--d-fast);
}
.topbar .user-chip:hover {
  background: var(--primary-25); border-color: var(--primary-200);
  box-shadow: 0 2px 8px -2px rgba(43,101,180,0.15);
}
.topbar .user-chip .user-avatar {
  width: 26px; height: 26px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 12px; color: #fff;
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--accent-orange) 130%);
  letter-spacing: 0; line-height: 1; flex-shrink: 0;
}
.topbar .user-chip .user-meta {
  display: flex; align-items: center; line-height: 1;
}
.topbar .user-chip .user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); line-height: 1.4; }

/* Slightly elevate the brand wordmark too — the topbar got more refined, the logo should match */
.topbar .brand .module-tag { color: var(--primary-700); border-left-color: var(--primary-100); }

/* ====== Cmd-K trigger chip (sits in topbar-right, replaces standalone Ask) ====== */
.cmdk-trigger {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 6px 6px 14px;            /* tight on right for kbd; comfortable on left */
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: 999px;
  color: var(--text-tertiary);
  font: inherit; font-size: 13px; font-weight: 500;
  cursor: pointer; min-width: 200px;    /* slimmer — frees up nav space */
  transition: background var(--d-fast), border-color var(--d-fast), color var(--d-fast);
}
.cmdk-trigger:hover {
  background: var(--primary-25); border-color: var(--primary-200); color: var(--primary-700);
}
.cmdk-trigger svg { opacity: 0.6; }
.cmdk-trigger:hover svg { opacity: 1; }
.cmdk-trigger-label { flex: 1; text-align: left; }
/* The kbd in the trigger gets its own dedicated styling — slightly larger,
   sits in its own padded cell flush to the right edge of the chip. */
.cmdk-trigger .cmdk-kbd {
  display: inline-flex; align-items: center; justify-content: center;
  height: 22px; padding: 0 8px;
  background: var(--bg-subtle); border: 1px solid var(--border-secondary);
  border-radius: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.cmdk-esc, .cmdk-foot kbd, .ci-enter {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 20px; padding: 0 6px;
  background: var(--bg-subtle); border: 1px solid var(--border-secondary);
  border-radius: 4px; font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  color: var(--text-secondary);
}

/* ====== Cmd-K modal ====== */
.cmdk-modal {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 12vh;
}
.cmdk-backdrop {
  position: absolute; inset: 0;
  background: rgba(16,24,40,0.35);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.cmdk-panel {
  position: relative; width: 640px; max-width: 92vw;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-xl);
  box-shadow: 0 24px 64px -16px rgba(16,24,40,0.30), 0 8px 24px -8px rgba(16,24,40,0.15);
  overflow: hidden;
  animation: cmdk-in 0.16s var(--easing-out) both;
}
@keyframes cmdk-in {
  from { transform: translateY(-6px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}
.cmdk-search-wrap {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; border-bottom: 1px solid var(--border-secondary);
}
.cmdk-search-icon { width: 18px; height: 18px; color: var(--text-tertiary); flex-shrink: 0; }
#cmdk-input {
  flex: 1; border: none; outline: none; background: transparent;
  font: inherit; font-size: 16px; color: var(--text-primary);
}
#cmdk-input::placeholder { color: var(--text-tertiary); }
.cmdk-results { max-height: 60vh; overflow-y: auto; padding: 6px; }
.cmdk-sec {
  padding: 8px 12px 4px;
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-tertiary);
}
.cmdk-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--d-fast);
}
.cmdk-item.focused { background: var(--primary-25); }
.cmdk-item .ci-ic { width: 18px; height: 18px; color: var(--primary-600); flex-shrink: 0; }
.cmdk-item.focused .ci-ic { color: var(--primary-700); }
.cmdk-item .ci-body { flex: 1; min-width: 0; }
.cmdk-item .ci-title { font-size: var(--text-sm); font-weight: 600; color: var(--text-primary); }
.cmdk-item .ci-title .ci-q { color: var(--accent-orange); }
.cmdk-item .ci-hint { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.cmdk-item .ci-enter { opacity: 0; transition: opacity var(--d-fast); }
.cmdk-item.focused .ci-enter { opacity: 1; }
.cmdk-empty { padding: 24px; text-align: center; color: var(--text-tertiary); font-size: var(--text-sm); }
.cmdk-foot {
  display: flex; gap: 16px; align-items: center;
  padding: 8px 14px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-secondary);
  font-size: 11px; color: var(--text-tertiary);
}
.cmdk-foot kbd { background: var(--bg-elevated); }

/* Utility: vertically align a button with siblings that have a label-above-input.
   The control rows put an 11px+4px (label + bottom margin) extra height on each
   select/input; bare buttons need this spacer at the top to line up properly. */
.btn-aligned { margin-top: 19px; }

/* ==========================================================================
   Inline definitions — "What is X?" tooltips next to analytics headings.
   Uses native <details>/<summary> for accessibility + zero-JS.
   ========================================================================== */
.info-tip { display: inline-block; vertical-align: middle; margin-left: 6px; }
.info-tip summary {
  display: inline-flex; align-items: center; gap: 4px;
  list-style: none; cursor: pointer;
  font-size: 11px; font-weight: 600;
  color: var(--primary-700);
  background: var(--primary-25);
  border: 1px solid var(--primary-100);
  padding: 2px 8px 2px 6px; border-radius: 999px;
  transition: background var(--d-fast), border-color var(--d-fast);
}
.info-tip summary:hover { background: var(--primary-50); border-color: var(--primary-200); }
.info-tip summary::-webkit-details-marker { display: none; }
.info-tip summary::marker { content: ''; }
.info-tip summary::before {
  content: 'i';
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px;
  background: var(--primary-600); color: #fff;
  border-radius: 50%;
  font-family: var(--font-mono); font-style: italic; font-size: 10px; font-weight: 700;
  line-height: 1;
}
.info-tip[open] summary { background: var(--primary-50); border-color: var(--primary-300); }
.info-tip .info-body {
  display: block; position: absolute; z-index: 50;
  margin-top: 8px; max-width: 460px;
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg-elevated);
  border: 1px solid var(--primary-200); border-radius: var(--r-md);
  box-shadow: var(--sh-md);
  font-size: var(--text-sm); font-weight: 400; line-height: 1.5;
  color: var(--text-primary);
  text-transform: none; letter-spacing: 0;
}
.info-tip .info-body strong { color: var(--primary-700); }
.info-tip .info-body p { margin: 0; }
.info-tip .info-body p + p { margin-top: 8px; }
.info-tip .info-body .info-foot { margin-top: 10px; font-size: var(--text-xs); color: var(--text-tertiary); }

/* ==========================================================================
   Main / Layout
   ========================================================================== */
main { padding: var(--sp-8); max-width: 1280px; margin: 0 auto; }
.section-title { font-size: var(--text-md); font-weight: 600; color: var(--text-primary); margin: var(--sp-8) 0 var(--sp-4); }
.subtitle { color: var(--text-tertiary); font-size: var(--text-md); margin: 0 0 var(--sp-8); }

h1, h2, h3, h4 { color: var(--text-primary); margin: 0; }
h1 { font-size: var(--display-sm); font-weight: 700; letter-spacing: var(--letter-tight); line-height: var(--line-tight); }
h2 { font-size: var(--text-lg); font-weight: 600; margin-top: var(--sp-8); margin-bottom: var(--sp-4); }
h3 { font-size: var(--text-md); font-weight: 600; }

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  box-shadow: var(--sh-xs);
  transition: box-shadow var(--d-mid) var(--easing-out), border-color var(--d-mid) var(--easing-out), transform var(--d-mid) var(--easing-out);
}
.card.interactive:hover { box-shadow: var(--sh-md); border-color: var(--border-primary); }
.card.elevated { box-shadow: var(--sh-sm); }

/* Stat tile */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--sp-4); margin-bottom: var(--sp-6); }
.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-xl);
  padding: var(--sp-5) var(--sp-6);
  box-shadow: var(--sh-xs);
}
.stat-label { color: var(--text-tertiary); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
.stat-value { margin-top: var(--sp-3); font-size: var(--display-sm); font-weight: 700; letter-spacing: var(--letter-tight); font-variant-numeric: tabular-nums; color: var(--text-primary); }
.stat-sub { color: var(--text-tertiary); font-size: var(--text-xs); margin-top: var(--sp-1); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  padding: 9px var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid transparent;
  font-family: inherit; font-size: var(--text-sm); font-weight: 600; line-height: 1;
  cursor: pointer;
  transition: background var(--d-fast) var(--easing-out), border-color var(--d-fast) var(--easing-out), box-shadow var(--d-fast) var(--easing-out), color var(--d-fast) var(--easing-out);
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-md  { padding: 9px var(--sp-4); font-size: var(--text-sm); }
.btn-lg  { padding: 11px var(--sp-5); font-size: var(--text-md); }
.btn-sm  { padding: 6px var(--sp-3); font-size: var(--text-xs); }

.btn-primary { background: var(--primary-600); color: var(--text-onbrand); border-color: var(--primary-600); box-shadow: var(--sh-xs); }
.btn-primary:hover { background: var(--primary-700); border-color: var(--primary-700); }
.btn-primary:focus-visible { outline: none; box-shadow: var(--sh-focus-brand); }

.btn-secondary { background: var(--bg-elevated); color: var(--text-secondary); border-color: var(--border-strong); box-shadow: var(--sh-xs); }
.btn-secondary:hover { background: var(--bg-muted); color: var(--text-primary); }
.btn-secondary:focus-visible { outline: none; box-shadow: var(--sh-focus-brand); }

.btn-ghost { background: transparent; color: var(--text-secondary); border-color: transparent; }
.btn-ghost:hover { background: var(--bg-muted); color: var(--text-primary); }

/* ==========================================================================
   Inputs
   ========================================================================== */
.input, input[type="text"], input[type="search"], input[type="number"], input[type="email"], textarea, select {
  width: 100%;
  padding: 10px var(--sp-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-family: inherit; font-size: var(--text-sm); line-height: var(--line-normal);
  transition: border-color var(--d-fast) var(--easing-out), box-shadow var(--d-fast) var(--easing-out);
  box-shadow: var(--sh-xs);
}
.input:focus, input:focus, textarea:focus, select:focus { outline: none; border-color: var(--border-focus); box-shadow: var(--sh-focus-brand); }
.input::placeholder, input::placeholder, textarea::placeholder { color: var(--text-placeholder); }

label.field-label { display: block; font-size: var(--text-sm); color: var(--text-secondary); font-weight: 500; margin-bottom: var(--sp-2); }
.helper { font-size: var(--text-xs); color: var(--text-tertiary); margin-top: var(--sp-2); }

/* ==========================================================================
   Tables
   ========================================================================== */
table.data {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-secondary);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--sh-xs);
}
table.data thead th {
  background: var(--bg-subtle);
  color: var(--text-tertiary);
  font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: var(--sp-3) var(--sp-5);
  text-align: left;
  border-bottom: 1px solid var(--border-secondary);
}
table.data tbody td {
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--border-secondary);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover td { background: var(--bg-subtle); }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-primary); }
.warn { background: var(--warning-50); color: var(--warning-700); font-weight: 600; }

/* ==========================================================================
   Badges & chips
   ========================================================================== */
.badge {
  display: inline-flex; align-items: center; gap: var(--sp-1);
  padding: 2px var(--sp-2);
  border-radius: var(--r-full);
  font-size: var(--text-xs); font-weight: 500;
  background: var(--bg-muted); color: var(--text-secondary);
  border: 1px solid var(--border-secondary);
}
.badge-brand   { background: var(--primary-50);  color: var(--primary-700);  border-color: var(--primary-200); }
.badge-success { background: var(--success-50);  color: var(--success-700);  border-color: var(--success-200); }
.badge-warning { background: var(--warning-50);  color: var(--warning-700);  border-color: var(--warning-200); }
.badge-error   { background: var(--error-50);    color: var(--error-700);    border-color: var(--error-200);   }
.badge-info    { background: var(--info-50);     color: var(--info-700);     border-color: var(--info-200);    }
.badge-dot::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: inline-block; }

/* ==========================================================================
   Empty / placeholder
   ========================================================================== */
.empty {
  padding: var(--sp-6) var(--sp-8);
  background: var(--bg-elevated);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-xl);
  color: var(--text-tertiary);
  text-align: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer.app-footer { padding: var(--sp-5) var(--sp-8); text-align: center; color: var(--text-quaternary); font-size: var(--text-xs); }
footer.app-footer .pill { display: inline-flex; align-items: center; gap: var(--sp-2); padding: 3px var(--sp-3); border-radius: var(--r-full); background: var(--bg-muted); color: var(--text-tertiary); }

/* ==========================================================================
   Misc helpers
   ========================================================================== */
.muted { color: var(--text-tertiary); }
.row { display: flex; gap: var(--sp-3); align-items: center; }
.row.between { justify-content: space-between; }
.stack { display: flex; flex-direction: column; gap: var(--sp-3); }
.divider { height: 1px; background: var(--border-secondary); margin: var(--sp-6) 0; }
code { background: var(--bg-muted); padding: 1px var(--sp-2); border-radius: var(--r-xs); font-size: var(--text-xs); color: var(--text-secondary); }
.kbd { background: var(--bg-elevated); border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: var(--r-sm); padding: 1px 6px; font-size: 11px; font-family: var(--font-mono); color: var(--text-secondary); }