/* ============================================================
   THINKBENCH DESIGN SYSTEM — single source of truth
   Backs the shared Thinkbench.DesignSystem RCL components (ThCard,
   ThPageHead, ThPill, ThStat, ThKpiGrid, ThAlertBanner, and any new
   ones added here as they're built — see docs/design-system/
   THINKBENCH-DESIGN-SYSTEM.md and docs/design-system/REVIEW-2026-06-22.md).

   Shipped as this RCL's static web asset and referenced by every
   consuming app (Portal, Engage, …) at
   "_content/Thinkbench.DesignSystem/design-system.css" — there is
   exactly one copy of this file on disk; it is never hand-copied into
   a product's own wwwroot. Each product's own app.css/eg.css keeps
   only the CSS specific to that product's own chrome (its own .card
   look, its own sidebar, its own buttons, etc.) — never anything that
   backs a component on this list.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:ital,wght@0,400;0,500;0,600;0,700;0,800;1,500&family=Space+Mono:wght@400;700&display=swap');

:root{
  --blue:        oklch(0.55 0.17 254);
  --blue-deep:   oklch(0.44 0.16 258);
  --blue-bright: oklch(0.62 0.18 250);
  --teal:        oklch(0.75 0.13 188);
  --teal-deep:   oklch(0.66 0.12 192);

  --ink:   oklch(0.23 0.028 260);
  --ink-2: oklch(0.44 0.022 260);
  --ink-3: oklch(0.60 0.016 260);
  --ink-4: oklch(0.72 0.012 260);

  --bg:      oklch(0.985 0.006 250);
  --bg-2:    oklch(0.965 0.008 245);
  --bg-3:    oklch(0.945 0.010 245);
  --surface: #ffffff;
  --line:    oklch(0.23 0.028 260 / 0.10);
  --line-2:  oklch(0.23 0.028 260 / 0.17);

  --grad: linear-gradient(120deg, var(--blue) 0%, var(--teal) 100%);
  --grad-soft: linear-gradient(120deg, oklch(0.55 0.17 254 / .12), oklch(0.75 0.13 188 / .12));

  --good: oklch(0.62 0.14 155);
  --good-bg: oklch(0.62 0.14 155 / .12);
  --warn: oklch(0.70 0.15 70);
  --warn-bg: oklch(0.70 0.15 70 / .14);
  --alert: oklch(0.60 0.20 25);
  --alert-bg: oklch(0.60 0.20 25 / .10);
  --violet: oklch(0.58 0.16 290);

  --sh-sm: 0 1px 2px oklch(0.3 0.05 260 / .06), 0 1px 3px oklch(0.3 0.05 260 / .04);
  --sh:    0 2px 8px oklch(0.3 0.05 260 / .06), 0 8px 24px oklch(0.3 0.05 260 / .07);
  --sh-lg: 0 8px 30px oklch(0.3 0.05 260 / .10), 0 24px 60px oklch(0.3 0.05 260 / .12);
  --glow-blue: 0 6px 26px oklch(0.55 0.17 254 / .26);

  --r-sm: 9px; --r: 13px; --r-lg: 18px; --r-xl: 26px;
  --nav-w: 248px;
}

/* ---------- surfaces (ThCard Variant="Soft") ---------- */
.soft{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r);}

/* ---------- pill / tag (ThPill) ---------- */
.pill{display:inline-flex;align-items:center;gap:7px;height:25px;padding:0 11px;border-radius:30px;
  font:600 12px/1 'Hanken Grotesk';border:1px solid var(--line-2);color:var(--ink-2);background:var(--surface);white-space:nowrap;}
.pill .dot{width:7px;height:7px;border-radius:50%;}
.pill.blue{background:oklch(0.55 0.17 254 / .09);border-color:transparent;color:var(--blue-deep);}
.pill.teal{background:oklch(0.75 0.13 188 / .14);border-color:transparent;color:var(--teal-deep);}
.pill.good{background:var(--good-bg);border-color:transparent;color:var(--good);}
.pill.warn{background:var(--warn-bg);border-color:transparent;color:oklch(0.52 0.13 60);}
.pill.alert{background:var(--alert-bg);border-color:transparent;color:var(--alert);}
.pill.violet{background:oklch(0.58 0.16 290 / .12);border-color:transparent;color:var(--violet);}
.pill.muted{background:var(--bg-3);border-color:transparent;color:var(--ink-3);}

/* ---------- KPI / stat (ThStat / ThKpiGrid) ---------- */
.stat{position:relative;overflow:hidden;padding:18px 20px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-sm);}
.stat-accent{position:absolute;top:0;left:0;right:0;height:3px;}
.stat .s-l{font:600 12.5px/1 'Hanken Grotesk';color:var(--ink-3);}
.stat .s-v{font:800 30px/1 'Hanken Grotesk';letter-spacing:-.02em;margin-top:9px;}
.stat .s-d{font:600 12.5px/1 'Hanken Grotesk';margin-top:8px;}

.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
@media (max-width:760px){ .kpi-grid{grid-template-columns:repeat(2,1fr);} }

/* ---------- page header (ThPageHead) ---------- */
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap;}
.page-title{font-size:27px;font-weight:800;letter-spacing:-.025em;margin:0;}
.page-sub{font-size:14.5px;color:var(--ink-3);margin-top:5px;}

/* ---------- empty state (ThEmptyState) ---------- */
.th-empty{display:flex;flex-direction:column;gap:10px;align-items:flex-start;padding:32px;color:var(--ink-2);}
.th-empty-title{font-weight:700;font-size:15px;color:var(--ink);margin:0;}

/* ---------- table (ThDataTable) ---------- */
.tbl{width:100%;border-collapse:collapse;}
.tbl th{font:700 11px/1 'Space Mono',monospace;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-4);
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);}
.tbl td{padding:13px 14px;border-bottom:1px solid var(--line);color:var(--ink-2);font-size:14px;vertical-align:middle;}
.tbl tr:last-child td{border-bottom:none;}

/* ---------- form field (ThFormField) ---------- */
.field{width:100%;}
.field label{font:600 13px/1 'Hanken Grotesk';color:var(--ink-2);margin-bottom:8px;display:block;}
.field input, .field select{
  width:100%;height:46px;border:1px solid var(--line-2);border-radius:11px;background:var(--surface);
  padding:0 14px;font:500 15px/1 'Hanken Grotesk';color:var(--ink);transition:border-color .16s, box-shadow .16s;
}
.field input:focus, .field select:focus{border-color:var(--blue);box-shadow:0 0 0 3px oklch(0.55 0.17 254 / .12);outline:none;}

/* small utilities the components above rely on */
.col{display:flex;flex-direction:column;}
.muted{color:var(--ink-3);}

/* ---------- two-up layout (side-by-side panels) ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media (max-width:760px){ .grid-2{grid-template-columns:1fr !important;} }

/* ---------- 5-column KPI grid variant (Engage dashboard) ---------- */
.kpi-grid-5{grid-template-columns:repeat(5,1fr);}
@media (max-width:900px){.kpi-grid-5{grid-template-columns:repeat(3,1fr);}}
@media (max-width:600px){.kpi-grid-5{grid-template-columns:repeat(2,1fr);}}