/* ==================================================================
   KESTREL — field-intelligence design system
   Light warm-stone paper · electric cobalt · charcoal ink
   Bricolage Grotesque (display) · Archivo (body) · JetBrains Mono
================================================================== */

:root{
  --paper:#EAE7E0;      /* warm stone paper */
  --paper-2:#E3DFD6;    /* deeper stone (bands) */
  --panel:#F6F4EF;      /* raised warm white */
  --white:#FDFCFA;
  --ink:#15161B;        /* near-black text */
  --ink-2:#3D4048;      /* soft ink */
  --muted:#7C7E86;      /* captions */
  --line:#CFCabf;       /* warm hairline */
  --line-2:#DCD8CE;
  --cobalt:#243BE6;     /* electric accent */
  --cobalt-deep:#1826A8;
  --cobalt-soft:rgba(36,59,230,.08);
  --cobalt-line:rgba(36,59,230,.28);
  --ok:#0F7A4E;         /* detected */
  --gap:#C23A2B;        /* undetected / gap */
  --ok-soft:rgba(15,122,78,.14);
  --gap-soft:rgba(194,58,43,.14);

  --display:'Bricolage Grotesque',sans-serif;
  --body:'Archivo',sans-serif;
  --mono:'JetBrains Mono',monospace;
  --wrap:1200px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--paper); color:var(--ink); font-family:var(--body);
  line-height:1.62; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    linear-gradient(to right, rgba(0,0,0,.022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,.022) 1px, transparent 1px);
  background-size:46px 46px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--cobalt);color:#fff}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 30px}

/* ---------- type helpers ---------- */
.mono{font-family:var(--mono)}
.tag{
  font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cobalt);display:inline-flex;align-items:center;gap:9px;
}
.tag::before{content:"";width:26px;height:1px;background:var(--cobalt-line)}
.tag.plain::before{display:none}
.tag.ink{color:var(--ink-2)}
.tag.ink::before{background:var(--line)}

h1,h2,h3,h4{font-family:var(--display);font-weight:600;letter-spacing:-.02em;line-height:1.04}

/* ---------- buttons ---------- */
.btn{font-family:var(--body);font-weight:600;font-size:15px;cursor:pointer;border:1.5px solid transparent;
  display:inline-flex;align-items:center;gap:9px;padding:12px 22px;transition:.18s;border-radius:2px}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--cobalt);color:#fff}
.btn-primary:hover{background:var(--cobalt-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sm{padding:9px 15px;font-size:13.5px}

/* ==================================================================
   HEADER
================================================================== */
.site-head{position:sticky;top:0;z-index:60;background:rgba(234,231,224,.86);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:36px;height:70px}
.brand{display:flex;align-items:center;gap:11px}
.brand .mark{width:30px;height:30px;color:var(--cobalt);flex:none}
.brand .name{font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.03em}
.brand .name b{color:var(--ink)}
.brand .name i{font-style:normal;color:var(--cobalt)}
.main-nav{display:flex;gap:4px;margin-left:6px}
.main-nav a{font-size:14px;font-weight:600;color:var(--ink-2);padding:8px 12px;border-radius:2px;transition:.15s;position:relative}
.main-nav a:hover{color:var(--ink);background:rgba(0,0,0,.04)}
.main-nav a.on{color:var(--cobalt)}
.main-nav a.on::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--cobalt)}
.head-cta{margin-left:auto;display:flex;align-items:center;gap:14px}
.head-cta .doclink{font-family:var(--mono);font-size:12.5px;color:var(--ink-2);letter-spacing:.02em}
.head-cta .doclink:hover{color:var(--cobalt)}
.burger{display:none;background:none;border:1.5px solid var(--ink);border-radius:2px;padding:8px;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);margin:3px 0}
.msheet{display:none;border-bottom:1px solid var(--line);background:var(--panel);padding:12px 30px 20px}
.msheet.open{display:block}
.msheet a{display:block;padding:11px 0;font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--line-2)}
.msheet a:last-of-type{border:none}
.msheet .btn{width:100%;justify-content:center;margin-top:14px}

/* ==================================================================
   HERO (home)
================================================================== */
.hero{padding:70px 0 30px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-kicker{display:flex;align-items:center;gap:14px;margin-bottom:26px}
.hero-kicker .case{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.hero h1{font-size:clamp(42px,6vw,74px);line-height:.98}
.hero h1 .cob{color:var(--cobalt)}
.hero h1 .out{-webkit-text-stroke:1.4px var(--ink);color:transparent}
.hero .sub{font-size:19px;color:var(--ink-2);max-width:520px;margin:26px 0 32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* coverage matrix signature */
.matrix{background:var(--panel);border:1px solid var(--line);border-radius:4px;overflow:hidden;
  box-shadow:0 24px 60px -34px rgba(21,22,27,.4)}
.matrix-bar{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--line-2);background:var(--white)}
.matrix-bar .t{font-family:var(--mono);font-size:12px;color:var(--ink-2)}
.matrix-bar .live{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--cobalt);display:flex;align-items:center;gap:6px}
.matrix-bar .live i{width:7px;height:7px;border-radius:50%;background:var(--cobalt);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.matrix-cols{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;padding:18px 16px}
.mcol{display:flex;flex-direction:column;gap:5px}
.mcol .h{font-family:var(--mono);font-size:8.5px;letter-spacing:.04em;color:var(--muted);text-transform:uppercase;
  height:22px;line-height:1.1;overflow:hidden}
.cell{height:15px;border-radius:2px;background:#DBD7CE;transition:.4s;transform:scale(.9);opacity:.5}
.cell.tested{background:var(--cobalt);opacity:1;transform:scale(1)}
.cell.detected{background:var(--ok);opacity:1;transform:scale(1)}
.cell.gap{background:var(--gap);opacity:1;transform:scale(1)}
.matrix-legend{display:flex;gap:18px;padding:12px 16px;border-top:1px solid var(--line-2);background:var(--white);flex-wrap:wrap}
.matrix-legend span{font-family:var(--mono);font-size:11px;color:var(--ink-2);display:flex;align-items:center;gap:7px}
.matrix-legend i{width:10px;height:10px;border-radius:2px}
.li-tested{background:var(--cobalt)} .li-det{background:var(--ok)} .li-gap{background:var(--gap)} .li-un{background:#DBD7CE}

/* ==================================================================
   STAT BAR
================================================================== */
.statbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper-2)}
.statbar-in{display:grid;grid-template-columns:repeat(4,1fr)}
.statbar .s{padding:26px 24px;border-right:1px solid var(--line)}
.statbar .s:last-child{border-right:none}
.statbar .n{font-family:var(--display);font-weight:700;font-size:34px;letter-spacing:-.03em}
.statbar .n em{font-style:normal;color:var(--cobalt)}
.statbar .l{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.04em;margin-top:6px;text-transform:uppercase}

/* ==================================================================
   SECTIONS
================================================================== */
.section{padding:96px 0}
.section.tight{padding:70px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:52px;flex-wrap:wrap}
.sec-head .lhs{max-width:640px}
.sec-index{font-family:var(--mono);font-size:12px;color:var(--cobalt);letter-spacing:.1em;margin-bottom:16px}
.sec-head h2{font-size:clamp(30px,4vw,46px)}
.sec-head p{font-size:17px;color:var(--ink-2);margin-top:16px}
.sec-head .rhs{font-family:var(--mono);font-size:12px;color:var(--muted);text-align:right;max-width:220px}

/* editorial two-col intro */
.editorial{display:grid;grid-template-columns:.42fr .58fr;gap:56px;align-items:start}
.editorial .big{font-family:var(--display);font-weight:600;font-size:clamp(26px,3vw,34px);line-height:1.12;letter-spacing:-.02em}
.editorial .big em{font-style:normal;color:var(--cobalt)}
.editorial .body p{font-size:16.5px;color:var(--ink-2);margin-bottom:18px}
.editorial .body p:last-child{margin-bottom:0}

/* ---------- module cards ---------- */
.modgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:4px;overflow:hidden;background:var(--line)}
.mod{background:var(--panel);padding:30px 28px 26px;display:flex;flex-direction:column;min-height:264px;transition:.2s;position:relative}
.mod:hover{background:var(--white)}
.mod .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.mod .ico{width:44px;height:44px;border:1.5px solid var(--cobalt-line);color:var(--cobalt);border-radius:3px;display:flex;align-items:center;justify-content:center;background:var(--cobalt-soft)}
.mod .ico svg{width:22px;height:22px}
.mod .code{font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.1em}
.mod h3{font-size:21px;margin-bottom:10px}
.mod h3 .num{font-family:var(--mono);font-size:12px;color:var(--cobalt);margin-right:8px;font-weight:500;letter-spacing:0}
.mod p{font-size:14.5px;color:var(--ink-2);flex:1}
.mod .go{margin-top:20px;font-family:var(--mono);font-size:12px;color:var(--cobalt);display:flex;align-items:center;gap:8px;letter-spacing:.03em}
.mod .go svg{width:15px;height:15px;transition:.2s}
.mod:hover .go svg{transform:translateX(5px)}

/* ---------- lifecycle steps ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.fstep{border-top:2px solid var(--ink);padding-top:20px;position:relative}
.fstep.on{border-top-color:var(--cobalt)}
.fstep .p{font-family:var(--mono);font-size:12px;color:var(--cobalt);letter-spacing:.08em}
.fstep h4{font-size:19px;margin:14px 0 10px}
.fstep p{font-size:14px;color:var(--ink-2)}

/* ---------- audience (red/blue/purple) ---------- */
.aud{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.acard{border:1px solid var(--line);border-radius:4px;padding:30px 26px;background:var(--panel)}
.acard .band{display:inline-flex;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:2px;margin-bottom:18px}
.band-red{background:var(--gap-soft);color:var(--gap)}
.band-blue{background:var(--cobalt-soft);color:var(--cobalt)}
.band-purple{background:rgba(122,58,194,.13);color:#7A3AC2}
.acard h4{font-size:20px;margin-bottom:10px}
.acard p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px}
.acard ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.acard li{font-size:13.5px;color:var(--ink-2);display:flex;gap:10px}
.acard li::before{content:"—";color:var(--cobalt)}

/* ---------- integrations strip ---------- */
.integ{display:flex;flex-wrap:wrap;gap:12px}
.chip{font-family:var(--mono);font-size:13px;color:var(--ink-2);border:1px solid var(--line);background:var(--panel);
  border-radius:2px;padding:10px 16px;display:flex;align-items:center;gap:9px}
.chip svg{width:15px;height:15px;color:var(--cobalt)}

/* ---------- quote / principle ---------- */
.principle{border-left:3px solid var(--cobalt);padding:8px 0 8px 34px;max-width:820px}
.principle p{font-family:var(--display);font-weight:500;font-size:clamp(24px,3.2vw,34px);line-height:1.16;letter-spacing:-.02em}
.principle .by{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:20px;letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa button{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:26px 0;
  display:flex;justify-content:space-between;align-items:center;gap:20px;font-family:var(--display);font-weight:600;font-size:19px;color:var(--ink)}
.qa .plus{font-family:var(--mono);font-size:22px;color:var(--cobalt);flex:none;transition:.2s}
.qa.open .plus{transform:rotate(45deg)}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .3s ease}
.qa.open .ans{max-height:240px}
.qa .ans p{font-size:16px;color:var(--ink-2);padding-bottom:26px;max-width:760px}

/* ==================================================================
   DETAIL PAGE
================================================================== */
.page-hero{padding:56px 0 60px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.crumb{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:26px}
.crumb a:hover{color:var(--cobalt)}
.page-hero .code{font-family:var(--mono);font-size:12px;color:var(--cobalt);letter-spacing:.12em;margin-bottom:16px;display:block}
.page-hero h1{font-size:clamp(38px,5.2vw,62px)}
.page-hero .lead{font-size:19px;color:var(--ink-2);max-width:640px;margin:22px 0 30px}
.page-hero .actions{display:flex;gap:14px;flex-wrap:wrap}

/* capability checklist */
.caplist{list-style:none;display:flex;flex-direction:column}
.caplist li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line-2)}
.caplist li:last-child{border:none}
.caplist .ck{flex:none;width:26px;height:26px;border-radius:3px;background:var(--ok-soft);color:var(--ok);
  border:1px solid rgba(15,122,78,.35);display:flex;align-items:center;justify-content:center;margin-top:2px}
.caplist .ck svg{width:14px;height:14px}
.caplist b{font-family:var(--display);font-weight:600}
.caplist span{color:var(--ink-2)}

/* mini feature trio */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:4px;overflow:hidden;background:var(--line)}
.trio .t{background:var(--panel);padding:28px 24px}
.trio .t .k{font-family:var(--mono);font-size:11px;color:var(--cobalt);letter-spacing:.1em;margin-bottom:14px}
.trio .t h4{font-size:18px;margin-bottom:9px}
.trio .t p{font-size:14px;color:var(--ink-2)}

/* related */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel{border:1px solid var(--line);border-radius:4px;padding:24px;background:var(--panel);transition:.2s}
.rel:hover{border-color:var(--cobalt-line);background:var(--white);transform:translateY(-3px)}
.rel .k{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.08em;margin-bottom:12px}
.rel h4{font-size:18px;margin-bottom:8px}
.rel p{font-size:13.5px;color:var(--ink-2)}

/* page-specific console/sample blocks */
.panelbox{border:1px solid var(--line);border-radius:4px;background:var(--panel);overflow:hidden}
.panelbox .pb-head{padding:14px 18px;border-bottom:1px solid var(--line-2);background:var(--white);
  font-family:var(--mono);font-size:12px;color:var(--ink-2);display:flex;align-items:center;gap:8px}
.panelbox .pb-body{padding:20px 18px;font-family:var(--mono);font-size:13px;line-height:1.9}
.ln .id{color:var(--cobalt)} .ln .ok{color:var(--ok)} .ln .gp{color:var(--gap)} .ln .m{color:var(--ink-2)} .ln .mu{color:var(--muted)}

/* two-col split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}

/* ==================================================================
   CTA + FOOTER
================================================================== */
.cta{background:var(--ink);color:var(--paper);border-radius:6px;padding:70px 50px;text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 260px at 50% -10%,rgba(36,59,230,.4),transparent 70%)}
.cta > *{position:relative}
.cta .tag{color:#9BA6FF}
.cta .tag::before{background:rgba(155,166,255,.4)}
.cta h2{font-size:clamp(30px,4vw,48px);margin:16px 0 16px}
.cta p{font-size:18px;color:#C9CBD2;max-width:540px;margin:0 auto 30px}
.cta .btn-ghost{border-color:var(--paper);color:var(--paper)}
.cta .btn-ghost:hover{background:var(--paper);color:var(--ink)}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.site-foot{border-top:1px solid var(--line);padding:64px 0 34px;background:var(--paper-2)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{font-size:14px;color:var(--ink-2);max-width:290px;margin-top:16px}
.foot-col h5{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:15px}
.foot-col a{display:block;font-size:14.5px;color:var(--ink-2);padding:5px 0;transition:.15s}
.foot-col a:hover{color:var(--cobalt)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;margin-top:46px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap;gap:12px}
.foot-bot .status{font-family:var(--mono);font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px}
.foot-bot .status i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok)}
.foot-bot .cp{font-family:var(--mono);font-size:12px;color:var(--muted)}

/* reveal */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s ease}

a:focus-visible,.btn:focus-visible,button:focus-visible{outline:2px solid var(--cobalt);outline-offset:3px}

/* ==================================================================
   RESPONSIVE
================================================================== */
@media(max-width:960px){
  .hero-grid,.editorial,.split{grid-template-columns:1fr;gap:40px}
  .modgrid,.aud,.trio,.related{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr}
  .statbar-in{grid-template-columns:1fr 1fr}
  .statbar .s:nth-child(2){border-right:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .matrix-cols{grid-template-columns:repeat(6,1fr)}
}
@media(max-width:640px){
  .main-nav,.head-cta .doclink,.head-cta .btn{display:none}
  .burger{display:block;margin-left:auto}
  .modgrid,.aud,.trio,.related,.flow,.statbar-in,.foot-grid{grid-template-columns:1fr}
  .statbar .s{border-right:none;border-bottom:1px solid var(--line)}
  .section{padding:64px 0}
  .cta{padding:48px 24px}
  .sec-head .rhs{text-align:left}
  body{background-size:32px 32px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}