/* ===== FastPFor site ===== */
:root{
  --bg:#0c1020;
  --bg-soft:#11162b;
  --panel:#151c34;
  --ink:#e8ecf6;
  --ink-soft:#a7b0c8;
  --ink-dim:#7782a0;
  --line:rgba(255,255,255,.08);
  --brand:#5b8cff;
  --brand2:#22d3a6;
  --accent:#ffb000;
  --radius:16px;
  --maxw:1120px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:var(--mono);font-size:.88em}
em{color:var(--brand2);font-style:normal;font-weight:600}

/* ---- nav ---- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(12,16,32,.78);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:.85rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.brand{display:flex;align-items:center;gap:.55rem;color:var(--ink);font-weight:800;font-size:1.15rem}
.brand:hover{text-decoration:none}
.brand-mark{
  font-family:var(--mono);color:var(--brand2);
  background:rgba(34,211,166,.12);padding:.1rem .45rem;border-radius:8px;font-size:.95rem;
}
.nav-links{display:flex;align-items:center;gap:1.4rem}
.nav-links a{color:var(--ink-soft);font-weight:500;font-size:.95rem}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-gh{
  background:var(--brand);color:#fff!important;padding:.45rem .9rem;border-radius:10px;font-weight:600;
}
.nav-gh:hover{background:#3f74f0;text-decoration:none!important}
@media(max-width:760px){.nav-links a:not(.nav-gh){display:none}}

/* ---- hero ---- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-glow{
  position:absolute;inset:-30% -10% auto -10%;height:680px;
  background:
    radial-gradient(60% 60% at 25% 25%,rgba(91,140,255,.35),transparent 60%),
    radial-gradient(50% 50% at 80% 30%,rgba(34,211,166,.28),transparent 60%);
  filter:blur(20px);pointer-events:none;
}
.hero-inner{
  position:relative;max-width:var(--maxw);margin:0 auto;
  padding:6rem 1.5rem 5rem;text-align:center;
}
.eyebrow{
  text-transform:uppercase;letter-spacing:.22em;font-size:.78rem;font-weight:600;
  color:var(--brand2);margin:0 0 1.1rem;
}
.hero h1{font-size:clamp(2.4rem,6vw,4.1rem);line-height:1.05;font-weight:800;margin:0 0 1.4rem;letter-spacing:-.02em}
.grad{background:linear-gradient(100deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:720px;margin:0 auto 2.2rem;font-size:1.18rem;color:var(--ink-soft)}
.lede strong{color:var(--ink)}
.cta{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap;margin-bottom:2.4rem}
.btn{display:inline-block;padding:.8rem 1.6rem;border-radius:12px;font-weight:600;font-size:1rem;transition:.15s}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:linear-gradient(100deg,var(--brand),#3f74f0);color:#fff;box-shadow:0 8px 24px rgba(63,116,240,.35)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand)}
.badges{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap;opacity:.95}
.badges img{height:22px}

/* ---- stats ---- */
.stats{
  max-width:var(--maxw);margin:-2.2rem auto 0;padding:0 1.5rem;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;position:relative;z-index:2;
}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.5rem 1.2rem;text-align:center;
}
.stat-num{font-size:1.9rem;font-weight:800;letter-spacing:-.02em}
.stat-num span{font-size:.95rem;font-weight:600;color:var(--brand2)}
.stat-label{color:var(--ink-dim);font-size:.86rem;margin-top:.3rem}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ---- sections ---- */
.section{max-width:var(--maxw);margin:0 auto;padding:5.5rem 1.5rem}
.section-dark{max-width:none;background:var(--bg-soft);border-block:1px solid var(--line)}
.section-dark > *{max-width:var(--maxw);margin-inline:auto}
.section-title{font-size:clamp(1.8rem,4vw,2.5rem);font-weight:800;text-align:center;margin:0 0 .6rem;letter-spacing:-.02em}
.section-sub{text-align:center;color:var(--ink-soft);max-width:640px;margin:0 auto 2.8rem;font-size:1.08rem}

/* ---- cards ---- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.cards{grid-template-columns:1fr}}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem;transition:.18s;
}
.card:hover{transform:translateY(-3px);border-color:rgba(91,140,255,.5)}
.card-ico{font-size:1.7rem;margin-bottom:.7rem}
.card h3{margin:0 0 .5rem;font-size:1.18rem}
.card p{margin:0;color:var(--ink-soft);font-size:.97rem}
.card code{background:rgba(255,255,255,.06);padding:.1rem .35rem;border-radius:5px;color:var(--brand2)}

/* ---- code ---- */
.code-wrap{
  max-width:860px;margin:0 auto;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:#1a1f33;box-shadow:0 20px 50px rgba(0,0,0,.35);
}
.code-wrap pre{margin:0;padding:1.5rem 1.6rem;overflow-x:auto;font-size:.9rem;line-height:1.6}
.code-wrap code{font-family:var(--mono)}
.code-note{text-align:center;color:var(--ink-soft);max-width:720px;margin:1.6rem auto 0;font-size:.98rem}
.code-note code{background:rgba(255,255,255,.06);padding:.1rem .35rem;border-radius:5px;color:var(--brand2)}

/* ---- callout ---- */
.callout{
  max-width:860px;margin:2rem auto 0;background:rgba(91,140,255,.08);
  border:1px solid rgba(91,140,255,.3);border-left:3px solid var(--brand);
  border-radius:12px;padding:1.1rem 1.3rem;color:var(--ink-soft);font-size:.97rem;
}
.callout strong{color:var(--ink)}
.callout code{background:rgba(255,255,255,.07);padding:.1rem .35rem;border-radius:5px;color:var(--brand2)}

/* ---- bindings ---- */
.binding-feature{
  display:flex;gap:1.4rem;align-items:flex-start;max-width:860px;margin:0 auto 1.6rem;
  background:linear-gradient(120deg,rgba(34,211,166,.1),rgba(91,140,255,.08));
  border:1px solid rgba(34,211,166,.35);border-radius:var(--radius);padding:1.8rem;transition:.18s;
}
.binding-feature:hover{text-decoration:none;transform:translateY(-3px);border-color:var(--brand2)}
.binding-feature-ico{font-size:2.6rem;line-height:1}
.binding-feature-body h3{margin:0 0 .5rem;font-size:1.4rem;color:var(--ink)}
.binding-feature-body p{margin:0 0 .7rem;color:var(--ink-soft)}
.binding-feature-body strong{color:var(--brand2)}
.binding-feature-link{font-family:var(--mono);font-size:.88rem;color:var(--brand2);font-weight:600}
.bindings-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;max-width:860px;margin:0 auto}
@media(max-width:760px){.bindings-grid{grid-template-columns:repeat(2,1fr)}.binding-feature{flex-direction:column;gap:.8rem}}
.binding{
  display:flex;flex-direction:column;gap:.25rem;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:1.2rem;transition:.18s;
}
.binding:hover{text-decoration:none;transform:translateY(-3px);border-color:var(--brand)}
.binding-lang{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:var(--brand)}
.binding-repo{font-weight:700;color:var(--ink);font-size:1.05rem}
.binding-desc{color:var(--ink-dim);font-size:.86rem}

/* ---- related ---- */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media(max-width:900px){.related{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.related{grid-template-columns:1fr}}
.related a{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:1.2rem;
  display:flex;flex-direction:column;gap:.35rem;transition:.18s;
}
.related a:hover{text-decoration:none;transform:translateY(-3px);border-color:var(--brand)}
.related strong{color:var(--ink)}
.related span{color:var(--ink-dim);font-size:.9rem}

/* ---- papers ---- */
.papers{max-width:820px;margin:0 auto;padding:0;list-style:none}
.papers li{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:1.1rem 1.3rem;margin-bottom:.9rem;color:var(--ink-soft);font-size:.97rem;
}
.papers strong{color:var(--ink)}

/* ---- footer ---- */
.footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:3.5rem 1.5rem 2rem}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
@media(max-width:760px){.footer-inner{grid-template-columns:1fr}}
.footer-col h4{margin:0 0 .8rem;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-dim)}
.footer-col a{display:block;color:var(--ink-soft);margin-bottom:.4rem;font-size:.95rem}
.footer-col a:hover{color:var(--ink)}
.footer-col p{color:var(--ink-dim);font-size:.92rem;margin:.6rem 0 0}
.footer-bottom{max-width:var(--maxw);margin:2.5rem auto 0;padding-top:1.5rem;border-top:1px solid var(--line);color:var(--ink-dim);font-size:.85rem;text-align:center}