:root{--font-sans:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
--font-mono:"SFMono-Regular","SF Mono","JetBrains Mono","Menlo","Consolas",ui-monospace,monospace;
--bg:#F5F6FB;--bg-elev:#FFFFFF;--ink:#141A32;--ink-soft:#454E6E;--ink-mute:#727B99;
--line:rgba(20,26,50,0.10);--line-2:rgba(20,26,50,0.06);
--accent:#B86A11;--accent-fill:#E79A2E;--accent-soft:rgba(231,154,46,0.14);--jade:#0E7F63;
--shadow:0 1px 2px rgba(20,26,50,.05),0 12px 32px -12px rgba(20,26,50,.18)}
@media (prefers-color-scheme:dark){:root{--bg:#0E1428;--bg-elev:#161D34;--ink:#E9ECF7;--ink-soft:#AEB6D0;
--ink-mute:#7C86A6;--line:rgba(233,236,247,0.11);--line-2:rgba(233,236,247,0.06);
--accent:#F5B44E;--accent-fill:#F5B44E;--accent-soft:rgba(245,180,78,0.13);--jade:#3FC7A6;
--shadow:0 1px 2px rgba(0,0,0,.3),0 18px 40px -16px rgba(0,0,0,.55)}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-sans);line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:980px;margin:0 auto;padding:0 24px}.section{padding:clamp(2.6rem,6vw,4.2rem) 0}
a{color:inherit;text-decoration:none}h1,h2,h3{margin:0;letter-spacing:-.02em;line-height:1.15;text-wrap:balance}p{margin:0}
.eyebrow{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:600}
.mute{color:var(--ink-mute)}.soft{color:var(--ink-soft)}
header{position:sticky;top:0;z-index:20;backdrop-filter:saturate(1.4) blur(12px);background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--line-2)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1rem}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.2rem;letter-spacing:-.03em}
.nav-links{display:flex;align-items:center;gap:1.4rem}
.nav-links a.lk{font-size:.95rem;color:var(--ink-soft)}.nav-links a.lk:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:.5rem;border-radius:10px;font-weight:600;font-size:.95rem;padding:.6rem 1.15rem;border:1px solid transparent;transition:.18s}
.btn-ghost{color:var(--ink-soft);border-color:var(--line)}.btn-ghost:hover{color:var(--ink);border-color:var(--ink-mute)}
.btn-primary{background:var(--accent-fill);color:#1a1204;border-color:var(--accent-fill);font-weight:700}
.btn-primary:hover{filter:brightness(1.06)}
.btn-lg{padding:.8rem 1.5rem;font-size:1.02rem;border-radius:12px}
/* mobile nav + a11y baseline */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--bg-elev);color:var(--ink);padding:.6rem 1rem;border-radius:0 0 10px 0;z-index:100;font-size:.95rem}
.skip-link:focus{left:0}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent-fill);outline-offset:2px}
.nav-burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:.25rem .55rem;font-size:1.15rem;line-height:1.4;color:var(--ink);cursor:pointer}
@media (max-width:820px){
  .nav-burger{display:inline-flex}
  .nav{height:auto;min-height:64px;flex-wrap:wrap;padding:.5rem 0}
  .nav.open .nav-links{flex:1 1 100%;flex-wrap:wrap;justify-content:flex-end}
  .nav.open .nav-links a.lk{display:block;order:10;flex:1 1 100%;padding:.55rem 0;margin:0;border-top:1px solid var(--line-2);font-size:1rem}
}