:root{
  --bg:#eef1f7; --panel:#ffffff; --panel-2:#f7f9fd;
  --ink:#101728; --muted:#5c6577; --mute-2:#848d9f;
  --accent:#3b46e0; --accent-soft:rgba(59,70,224,.09);
  --warn:#dd4b2c; --warn-soft:rgba(221,75,44,.08);
  --line:#d5dbea; --line-strong:#b9c2d9;
  --radius:6px; --radius-sm:4px;
  --ease:cubic-bezier(.22,1,.36,1);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.68;font-family:var(--sans);
  -webkit-font-smoothing:antialiased}
a{color:inherit}
code{font-family:var(--mono);font-size:.85em;background:var(--accent-soft);color:var(--accent);
  padding:.1em .35em;border-radius:3px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;z-index:60;background:var(--ink);color:#fff;padding:.6rem 1rem;border-radius:var(--radius);font-weight:700}
.shell{width:min(1140px,calc(100% - 2.6rem));margin:auto}

/* ---- navigation ---- */
.nav{position:sticky;top:0;z-index:30;background:rgba(238,241,247,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-strong)}
.nav .bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:70px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;font-weight:800;font-size:1.02rem;letter-spacing:-.01em}
.mark{width:32px;height:32px;border-radius:var(--radius);display:grid;place-items:center;background:var(--accent);
  color:#fff;font:800 .7rem/1 var(--mono)}
.links{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.links a{text-decoration:none;font-size:.83rem;font-weight:600;color:var(--muted);transition:color .18s var(--ease)}
.links a:hover,.links a[aria-current=page]{color:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--ink);color:#fff!important;
  padding:.58rem 1rem;border-radius:var(--radius);text-decoration:none;font-weight:700;font-size:.83rem;
  border:1px solid var(--ink);
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
.btn:hover{transform:translateY(-2px);background:var(--accent);border-color:var(--accent)}
.ghost{display:inline-flex;align-items:center;padding:.56rem .95rem;border-radius:var(--radius);
  border:1px solid var(--line-strong);text-decoration:none;font-weight:700;font-size:.83rem;color:var(--ink);
  background:var(--panel);
  transition:transform .2s var(--ease),border-color .2s var(--ease)}
.ghost:hover{transform:translateY(-2px);border-color:var(--accent)}

/* ---- blueprint hero ---- */
.page-hero{border-bottom:1px solid var(--line-strong);padding:3.6rem 0 2.6rem;
  background:
    linear-gradient(rgba(59,70,224,.055) 1px,transparent 1px) 0 0/100% 34px,
    linear-gradient(90deg,rgba(59,70,224,.055) 1px,transparent 1px) 0 0/34px 100%,
    linear-gradient(180deg,#f7f9fd,#e9edf6)}
.crumb-line{font:600 .68rem/1.5 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mute-2)}
.crumb-line a{color:var(--mute-2);text-decoration:none}
.eyebrow{font:700 .68rem/1.5 var(--mono);letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin-top:1rem}
h1{font-size:clamp(2.1rem,4.8vw,3.5rem);line-height:1.06;letter-spacing:-.035em;margin:.5rem 0 1rem;
  max-width:24ch;font-weight:800}
h2{font-size:clamp(1.35rem,2.4vw,1.8rem);letter-spacing:-.025em;margin:2.5rem 0 .7rem;font-weight:800}
h3{font-size:1.05rem;line-height:1.35;margin:.2rem 0 .5rem;font-weight:750;letter-spacing:-.01em}
.lede{max-width:66ch;color:var(--muted);font-size:1.08rem}
.hero-cta{display:flex;gap:.65rem;flex-wrap:wrap;margin-top:1.6rem;align-items:center}

/* ---- pipeline motif ---- */
.pipeline{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:2rem 0 0;counter-reset:p}
.pipe-node{position:relative;flex:1 1 132px;min-width:122px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);padding:.7rem .8rem;
  transition:transform .2s var(--ease),border-color .2s var(--ease)}
.pipe-node:hover{transform:translateY(-3px);border-color:var(--accent)}
.pipe-node::after{content:"";position:absolute;right:-.4rem;top:50%;width:.4rem;height:1px;background:var(--line-strong)}
.pipe-node:last-child::after{display:none}
.pipe-num{display:block;font:700 .68rem/1 var(--mono);color:var(--accent);letter-spacing:.1em}
.pipe-label{display:block;margin-top:.35rem;font-size:.82rem;font-weight:700}
.pipe-node:last-child .pipe-num{color:var(--warn)}

/* ---- bands and grids ---- */
.band{padding:2.4rem 0}
.band + .band{padding-top:.3rem}
.grid{display:grid;gap:1rem;margin-top:1.3rem}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.35rem;transition:transform .2s var(--ease),border-color .2s var(--ease)}
.card:hover{transform:translateY(-3px);border-color:var(--accent)}
.card p{color:var(--muted);margin:.35rem 0 .85rem;font-size:.95rem}
.card-quiet{background:var(--panel-2)}
.card-quiet:hover{transform:translateY(-2px)}
.card-tick::before,.card-tick::after{content:"";position:absolute;width:9px;height:9px;pointer-events:none}
.card-tick::before{top:-1px;left:-1px;border-top:2px solid var(--accent);border-left:2px solid var(--accent);border-top-left-radius:var(--radius)}
.card-tick::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--accent);border-right:2px solid var(--accent);border-bottom-right-radius:var(--radius)}
.tag{display:inline-block;font:700 .64rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line-strong);border-radius:3px;padding:.3rem .5rem;background:var(--panel-2)}
.text-link{display:inline-block;font-weight:700;font-size:.86rem;text-decoration:none;color:var(--accent);
  transition:transform .18s var(--ease)}
.text-link::after{content:" →"}
.text-link:hover{transform:translateX(2px)}

/* ---- metrics ---- */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.6rem 0 0}
.metric{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-2);padding:1.1rem 1.2rem}
.kpi{display:block;font-family:var(--mono);font-size:1.9rem;font-weight:700;color:var(--accent);letter-spacing:-.02em;line-height:1}
.metric-label{display:block;margin-top:.45rem;font-size:.85rem;color:var(--muted)}

/* ---- stage list ---- */
.stages{list-style:none;padding:0;margin:1.2rem 0 0;display:grid;gap:.85rem}
.stage{position:relative;display:grid;grid-template-columns:56px 1fr;gap:1.1rem;background:var(--panel);
  border:1px solid var(--line);border-left:3px solid var(--line-strong);border-radius:var(--radius);
  padding:1.25rem 1.4rem;transition:transform .2s var(--ease),border-color .2s var(--ease)}
.stage:hover{transform:translateX(4px)}
.stage.owner-you{border-left-color:var(--accent)}
.stage.owner-op{border-left-color:var(--line-strong)}
.stage.owner-third{border-left-color:var(--warn)}
.stage-num{font:700 .95rem/1 var(--mono);color:var(--mute-2);padding-top:.3rem}
.stage h3{margin-top:0}
.stage p{margin:.3rem 0 0;color:var(--muted);font-size:.95rem}
.stage p + p{margin-top:.5rem}
.owner{display:inline-block;font:700 .62rem/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--line-strong);border-radius:3px;padding:.25rem .4rem;margin-left:.4rem;
  vertical-align:middle;color:var(--muted);background:var(--panel-2)}

/* ---- prose ---- */
.prose{max-width:74ch;margin-top:1.3rem}
.prose p{color:#3c4557}
.prose strong{color:var(--ink)}
.prose h2:first-child{margin-top:0}

/* ---- callouts ---- */
.callout{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--radius-sm);
  background:var(--panel);padding:1.25rem 1.4rem;margin:1.7rem 0 0}
.callout h3{margin-top:0}
.callout p{margin:.3rem 0 0;color:#3c4557;max-width:72ch;font-size:.95rem}
.callout-warn{border-left-color:var(--warn);background:var(--warn-soft)}

/* ---- ticks / crosses ---- */
.ticks,.crosses{list-style:none;padding:0;margin:.6rem 0 0}
.ticks li,.crosses li{position:relative;padding-left:1.5rem;margin:.5rem 0;color:var(--muted);font-size:.94rem}
.ticks li::before{content:"";position:absolute;left:.15rem;top:.6em;width:.42rem;height:.42rem;background:var(--accent);border-radius:1px}
.crosses li::before{content:"×";position:absolute;left:.1rem;top:-.05em;color:var(--warn);font-weight:800}

/* ---- tables ---- */
.table-wrap{overflow-x:auto;margin-top:1.5rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table{border-collapse:collapse;width:100%;min-width:640px}
caption{text-align:left;padding:1rem 1.2rem .3rem;font:700 .66rem/1.5 var(--mono);letter-spacing:.13em;
  text-transform:uppercase;color:var(--accent)}
th,td{padding:.75rem 1.2rem;text-align:left;border-bottom:1px solid var(--line);font-size:.9rem;vertical-align:top}
thead th{font:700 .66rem/1.5 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--mute-2);white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background-color .18s var(--ease)}
tbody tr:hover{background:var(--panel-2)}
td:first-child{font-weight:700;color:var(--ink)}

/* ---- faq ---- */
.faq{margin-top:1.3rem;display:grid;gap:.6rem}
.qa{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.2rem;
  transition:border-color .2s var(--ease)}
.qa[open]{border-color:var(--accent)}
.qa summary{cursor:pointer;font-weight:750;font-size:.98rem;list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:baseline}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font:700 1.05rem/1 var(--mono);color:var(--accent);flex:none}
.qa[open] summary::after{content:"\2212"}
.qa p{margin:.7rem 0 0;color:var(--muted);font-size:.94rem;max-width:74ch}

/* ---- disclosure ---- */
.disclosure{margin-top:2rem;padding:1.1rem 1.3rem;border:1px dashed var(--line-strong);border-radius:var(--radius);
  font-size:.85rem;color:#414a5c;background:var(--panel-2)}
.disclosure strong{color:var(--ink)}
.link-out{color:var(--accent);font-weight:700;text-decoration:underline;text-decoration-color:rgba(59,70,224,.35);
  text-underline-offset:3px;transition:text-decoration-color .18s var(--ease)}
.link-out:hover{text-decoration-color:var(--accent)}

/* ---- footer ---- */
.footer{margin-top:3rem;background:#0d1220;color:rgba(238,241,247,.64);padding:2.8rem 0 2.2rem;
  border-top:2px solid var(--accent)}
.footer .brand{color:#fff;margin-bottom:.6rem}
.footer .mark{background:var(--accent)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2rem}
.footer strong{display:block;color:#fff;font:700 .66rem/1.6 var(--mono);letter-spacing:.16em;text-transform:uppercase;margin-bottom:.5rem}
.footer a{display:block;text-decoration:none;font-size:.88rem;padding:.15rem 0;color:rgba(238,241,247,.64);
  transition:color .18s var(--ease),transform .18s var(--ease)}
.footer a:hover{color:#fff;transform:translateX(2px)}
.footer p{font-size:.88rem;max-width:46ch;margin:.2rem 0 0}
.fine{margin:2rem 0 0;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.14);
  font-size:.78rem;color:rgba(238,241,247,.48);max-width:none}

/* ---- responsive ---- */
@media (max-width:960px){
  .grid.three,.metrics{grid-template-columns:1fr 1fr}
  .grid.two,.foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .grid.three,.grid.two,.metrics,.foot-grid{grid-template-columns:1fr}
  .page-hero{padding:2.6rem 0 2rem}
  .pipe-node{flex:1 1 100%}
  .pipe-node::after{display:none}
  .stage{grid-template-columns:1fr;gap:.3rem}
}

/* ---- reduced motion ---- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .card:hover,.pipe-node:hover,.stage:hover,.footer a:hover,.ghost:hover,.btn:hover,.text-link:hover{transform:none}
}