/* AI Friendly — Design Tokens
   Crisp, trustworthy, diagnostic. Calm but urgent. */

:root {
  /* Brand — exact wordmark blue */
  --af-blue: #3C83F6;            /* hsl(217 91% 60%) */
  --af-blue-600: #2A6FE0;
  --af-blue-700: #1E58BD;
  --af-blue-50: #EEF3FE;
  --af-blue-100: #DCE7FD;
  --af-blue-200: #B8CFFB;

  /* Neutrals — warm-cool balanced, very low chroma */
  --ink-0:  #FFFFFF;
  --ink-50: #FAFAFB;
  --ink-100: #F4F4F6;
  --ink-150: #ECECEF;
  --ink-200: #E2E2E7;
  --ink-300: #C9C9D1;
  --ink-400: #9A9AA6;
  --ink-500: #6B6B78;
  --ink-600: #4A4A55;
  --ink-700: #2E2E38;
  --ink-800: #1B1B22;
  --ink-900: #0E0E14;

  /* Diagnostic / status */
  --signal-good:    #15B886;
  --signal-good-50: #E6F8F2;
  --signal-warn:    #E89A2B;
  --signal-warn-50: #FCF1E1;
  --signal-bad:     #E5484D;
  --signal-bad-50:  #FBE9EA;
  --signal-info:    var(--af-blue);
  --signal-info-50: var(--af-blue-50);

  /* Surfaces */
  --bg:       var(--ink-50);
  --surface:  var(--ink-0);
  --surface-2: var(--ink-100);
  --surface-3: var(--ink-150);
  --border:   var(--ink-200);
  --border-strong: var(--ink-300);

  /* Text */
  --text-1: var(--ink-900);
  --text-2: var(--ink-700);
  --text-3: var(--ink-500);
  --text-4: var(--ink-400);
  --text-on-blue: #FFFFFF;

  /* Type */
  --font-sans: "Inter", "Söhne", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-display: "Inter Tight", "Inter", -apple-system, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Radii */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-2xl: 28px;
  --r-full: 999px;

  /* Shadows — subtle, never glowy */
  --shadow-xs: 0 1px 0 rgba(14, 14, 20, 0.04), 0 1px 2px rgba(14, 14, 20, 0.04);
  --shadow-sm: 0 1px 2px rgba(14, 14, 20, 0.04), 0 2px 6px rgba(14, 14, 20, 0.06);
  --shadow-md: 0 4px 12px rgba(14, 14, 20, 0.06), 0 1px 3px rgba(14, 14, 20, 0.04);
  --shadow-lg: 0 12px 32px rgba(14, 14, 20, 0.08), 0 2px 6px rgba(14, 14, 20, 0.04);
  --shadow-blue: 0 8px 24px rgba(30, 91, 255, 0.18);

  /* Spacing scale */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px; --s-5: 20px;
  --s-6: 24px; --s-7: 32px; --s-8: 40px; --s-9: 48px; --s-10: 64px;
  --s-11: 80px; --s-12: 96px; --s-13: 128px;

  /* Motion */
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: var(--font-sans);
  color: var(--text-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ---------- Wordmark ---------- */
.af-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  user-select: none;
}
.af-wordmark .af-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--af-blue);
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.02em;
  border-radius: 6px;
}
.af-wordmark--md { font-size: 18px; }
.af-wordmark--md .af-mark { width: 28px; height: 28px; font-size: 13px; border-radius: 6px; }
.af-wordmark--lg { font-size: 22px; }
.af-wordmark--lg .af-mark { width: 36px; height: 36px; font-size: 15px; border-radius: 8px; }
.af-wordmark--xl { font-size: 32px; }
.af-wordmark--xl .af-mark { width: 52px; height: 52px; font-size: 22px; border-radius: 10px; }
.af-wordmark--inverted { color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 550;
  letter-spacing: -0.005em;
  transition: background 120ms var(--ease-out), border-color 120ms var(--ease-out), transform 120ms var(--ease-out), box-shadow 120ms var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--af-blue); color: #fff; box-shadow: var(--shadow-blue); }
.btn--primary:hover { background: var(--af-blue-600); }
.btn--ghost { background: transparent; color: var(--text-1); }
.btn--ghost:hover { background: var(--ink-100); }
.btn--outline { background: var(--surface); color: var(--text-1); border-color: var(--border-strong); }
.btn--outline:hover { background: var(--ink-50); border-color: var(--ink-400); }
.btn--ink { background: var(--ink-900); color: #fff; }
.btn--ink:hover { background: var(--ink-800); }
.btn--lg { height: 48px; padding: 0 20px; font-size: 15px; border-radius: 12px; }
.btn--xl { height: 56px; padding: 0 24px; font-size: 16px; border-radius: 14px; }
.btn--sm { height: 32px; padding: 0 12px; font-size: 13px; border-radius: 8px; }

/* ---------- Inputs ---------- */
.input {
  height: 44px;
  padding: 0 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-1);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 120ms, box-shadow 120ms;
  width: 100%;
}
.input:focus { border-color: var(--af-blue); box-shadow: 0 0 0 3px var(--af-blue-50); }
.input--lg { height: 56px; padding: 0 18px; font-size: 16px; border-radius: 12px; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}
.card--padded { padding: 24px; }
.card--sm { border-radius: var(--r-md); }

/* ---------- Pills / chips ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  height: 24px;
  padding: 0 10px;
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 550;
  letter-spacing: -0.005em;
  background: var(--ink-100);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.pill--blue { background: var(--af-blue-50); color: var(--af-blue-700); border-color: var(--af-blue-100); }
.pill--good { background: var(--signal-good-50); color: var(--signal-good); border-color: rgba(21,184,134,.2); }
.pill--warn { background: var(--signal-warn-50); color: var(--signal-warn); border-color: rgba(232,154,43,.2); }
.pill--bad  { background: var(--signal-bad-50);  color: var(--signal-bad);  border-color: rgba(229,72,77,.2); }
.pill--ink  { background: var(--ink-900); color: #fff; border-color: var(--ink-900); }

/* ---------- Section helpers ---------- */
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 960px; margin: 0 auto; padding: 0 32px; }

/* Type scale (display) */
.t-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--font-mono);
}
.t-display-xl { font-family: var(--font-display); font-size: clamp(48px, 6.4vw, 88px); line-height: 1.02; letter-spacing: -0.035em; font-weight: 580; }
.t-display-lg { font-family: var(--font-display); font-size: clamp(40px, 5vw, 64px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 580; }
.t-display-md { font-family: var(--font-display); font-size: clamp(32px, 3.6vw, 44px); line-height: 1.1; letter-spacing: -0.025em; font-weight: 580; }
.t-display-sm { font-family: var(--font-display); font-size: clamp(24px, 2.4vw, 32px); line-height: 1.15; letter-spacing: -0.02em; font-weight: 580; }
.t-body-lg { font-size: 18px; line-height: 1.55; color: var(--text-2); letter-spacing: -0.005em; }
.t-body { font-size: 15px; line-height: 1.55; color: var(--text-2); }
.t-body-sm { font-size: 13px; line-height: 1.5; color: var(--text-3); }
.t-mono { font-family: var(--font-mono); font-size: 13px; letter-spacing: -0.01em; }

/* Diagnostic dot */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot--good { background: var(--signal-good); }
.dot--warn { background: var(--signal-warn); }
.dot--bad  { background: var(--signal-bad); }
.dot--info { background: var(--af-blue); }

/* Subtle grid background */
.bg-grid {
  background-image:
    linear-gradient(to right, rgba(14,14,20,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,14,20,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
.bg-dotgrid {
  background-image: radial-gradient(rgba(14,14,20,0.10) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* Journey rail */
.journey {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-3); letter-spacing: 0.02em;
}
.journey b { color: var(--text-1); font-weight: 550; }
.journey .sep { width: 18px; height: 1px; background: var(--border-strong); }