/* ============================================================
   agent-center sites — shared design tokens
   Aligned to the product Web Console design system
   (web/src/index.css :root). Light slate/blue, Swiss minimal.
   Adds ONE characterful display font (Archivo) + mono for
   technical / DDD diagram labels. No dark engineering chrome.
   ============================================================ */
:root {
  /* ---- product-mirrored surface / text / brand ---- */
  --bg-base:        #f8fafc;
  --bg-elevated:    #ffffff;
  --bg-subtle:      #f1f5f9;
  --border:         #e2e8f0;
  --border-strong:  #cbd5e1;
  --ink:            #0f172a;
  --ink-2:          #475569;
  --ink-3:          #64748b;
  --brand:          #1e40af;
  --brand-hover:    #1d4ed8;
  --accent:         #2563eb;
  --success:        #16a34a;
  --warning:        #d97706;
  --danger:         #dc2626;

  /* DDD classification hues (reuse product status palette) */
  --core:        #2563eb;  --core-bg:     #dbeafe;  --core-bd:   #93c5fd;
  --essential:   #0d9488;  --essential-bg:#ccfbf1;  --essential-bd:#5eead4;
  --peripheral:  #64748b;  --peripheral-bg:#f1f5f9; --peripheral-bd:#cbd5e1;
  --generic:     #9333ea;  --generic-bg:  #f3e8ff;  --generic-bd:#d8b4fe;

  /* dark rail — echoes product col① module rail (fixed dark chrome) */
  --rail-bg:    #0b1220;
  --rail-line:  #1e293b;
  --rail-ink:   #94a3b8;
  --rail-ink-2: #cbd5e1;

  --shadow-1: 0 1px 2px rgba(15,23,42,.05);
  --shadow-2: 0 4px 14px -4px rgba(15,23,42,.12);
  --shadow-3: 0 18px 40px -12px rgba(15,23,42,.22);
  --ring: 0 0 0 3px rgba(37,99,235,.35);

  --r-sm: 7px; --r-md: 12px; --r-lg: 18px; --r-xl: 26px;

  --font-display: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body:    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;

  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg-base); color: var(--ink);
  font-family: var(--font-body); font-size: 15px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--brand-hover); }
h1,h2,h3,h4 { font-family: var(--font-display); letter-spacing: -.02em; line-height: 1.1; margin: 0; }

/* ---- top nav (shared) ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(248,250,252,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav .in { max-width: var(--maxw); margin: 0 auto; padding: 13px 24px; display: flex; align-items: center; gap: 26px; }
.brand { font-family: var(--font-mono); font-weight: 700; font-size: 15px; color: var(--ink); display: flex; align-items: center; gap: 8px; letter-spacing: -.3px; }
.brand .glyph { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg,var(--accent),var(--brand)); box-shadow: var(--shadow-1); display: grid; place-items: center; }
.brand .glyph::after { content:""; width: 9px; height: 9px; border: 2px solid #fff; border-radius: 50%; }
.nav nav { display: flex; gap: 4px; margin-left: auto; }
.nav nav a { color: var(--ink-2); font-size: 14px; font-weight: 500; padding: 7px 12px; border-radius: 8px; }
.nav nav a:hover { background: var(--bg-subtle); color: var(--ink); }
.nav nav a.active { color: var(--brand); background: var(--core-bg); }

/* ---- buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; padding: 10px 18px; border-radius: 10px; cursor: pointer; border: 1px solid transparent; transition: .18s; }
.btn.primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-2); }
.btn.primary:hover { background: var(--brand-hover); transform: translateY(-1px); }
.btn.ghost { background: var(--bg-elevated); color: var(--ink); border-color: var(--border-strong); }
.btn.ghost:hover { border-color: var(--accent); color: var(--brand); }

/* ---- chips ---- */
.chip { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--ink-2); background: var(--bg-elevated); }
.chip.core { color: var(--core); background: var(--core-bg); border-color: var(--core-bd); }
.chip.essential { color: var(--essential); background: var(--essential-bg); border-color: var(--essential-bd); }
.chip.peripheral { color: var(--peripheral); background: var(--peripheral-bg); border-color: var(--peripheral-bd); }
.chip.generic { color: var(--generic); background: var(--generic-bg); border-color: var(--generic-bd); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.eyebrow { font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.muted { color: var(--ink-3); }