/* NC Proof — shared styles */
:root{
  --bg:#0c0f13;
  --bg-2:#12161c;
  --panel:#161b22;
  --line:#252c36;
  --text:#e8ecf1;
  --muted:#8a94a3;
  --turn:#ff9f3a;
  --mill:#38c6f4;
  --accent:#c8f169;
  --radius:14px;
  --maxw:1180px;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Space Grotesk",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
body::before{ /* blueprint grid */
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 80%);
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(12,15,19,.75);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;letter-spacing:-.01em}
.logo-mark{width:30px;height:30px}
.logo span b{color:var(--accent);font-weight:700}
.nav-links{display:flex;gap:28px;align-items:center;font-size:.95rem;color:var(--muted)}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active.turn{color:var(--turn)}
.nav-links a.active.mill{color:var(--mill)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--text);
  border-radius:8px;padding:6px 10px;font:inherit;cursor:pointer}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:10px;
  font-weight:600;font-size:1rem;border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,border-color .2s;font-family:inherit}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:18px;height:18px}
.btn-turn{background:var(--turn);color:#1a1006}
.btn-turn:hover{box-shadow:0 10px 30px -8px rgba(255,159,58,.6)}
.btn-mill{background:var(--mill);color:#04161d}
.btn-mill:hover{box-shadow:0 10px 30px -8px rgba(56,198,244,.6)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--muted)}
.btn-lg{padding:18px 28px;font-size:1.08rem}

/* ---------- Hero ---------- */
.hero{padding:96px 0 72px;position:relative;overflow:hidden}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.8rem;
  color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:28px;
  background:rgba(22,27,34,.6)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
h1{font-size:clamp(2.4rem,5.6vw,4.4rem);line-height:1.05;letter-spacing:-.035em;font-weight:700;max-width:16ch}
h1 em{font-style:normal;color:var(--accent)}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--muted);max-width:60ch;margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

/* ---------- Section ---------- */
section{padding:84px 0;border-top:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:48px}
.kicker{font-family:var(--mono);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);line-height:1.12;letter-spacing:-.025em}
.sec-head p{color:var(--muted);margin-top:14px;font-size:1.08rem}

/* ---------- Product cards (home) ---------- */
.products{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pcard{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;display:flex;flex-direction:column;overflow:hidden;transition:border-color .25s,transform .25s}
.pcard:hover{transform:translateY(-4px)}
.pcard.turn:hover{border-color:rgba(255,159,58,.55)}
.pcard.mill:hover{border-color:rgba(56,198,244,.55)}
.pcard .tag{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase}
.pcard.turn .tag{color:var(--turn)}
.pcard.mill .tag{color:var(--mill)}
.pcard h3{font-size:1.9rem;letter-spacing:-.02em;margin:6px 0 10px}
.pcard p{color:var(--muted)}
.pcard ul{list-style:none;margin:20px 0 28px;display:grid;gap:8px}
.pcard li{display:flex;gap:10px;align-items:flex-start;font-size:.97rem}
.pcard li::before{content:"";flex:0 0 8px;height:8px;margin-top:9px;border-radius:2px;background:currentColor;opacity:.9}
.pcard.turn li::before{background:var(--turn)}
.pcard.mill li::before{background:var(--mill)}
.pcard .viz{height:200px;margin:-8px -8px 18px;border-radius:10px;background:var(--bg-2);border:1px solid var(--line);overflow:hidden}
.pcard .actions{margin-top:auto;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Feature grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.feat .ic{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(200,241,105,.1);color:var(--accent)}
.page-turn .feat .ic{background:rgba(255,159,58,.12);color:var(--turn)}
.page-mill .feat .ic{background:rgba(56,198,244,.12);color:var(--mill)}
.feat .ic svg{width:22px;height:22px}
.feat h4{font-size:1.12rem;margin-bottom:6px;letter-spacing:-.01em}
.feat p{color:var(--muted);font-size:.96rem}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{padding:26px;border-left:2px solid var(--line);position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--mono);font-size:.85rem;color:var(--accent);display:block;margin-bottom:10px}
.page-turn .step::before{color:var(--turn)}
.page-mill .step::before{color:var(--mill)}
.step h4{font-size:1.15rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.96rem}

/* ---------- Code window ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.codewin{background:#0a0d11;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-family:var(--mono);font-size:.86rem}
.codewin .bar{display:flex;gap:7px;padding:12px 14px;border-bottom:1px solid var(--line);align-items:center}
.codewin .bar i{width:10px;height:10px;border-radius:50%;background:#2b323c}
.codewin .bar span{margin-left:10px;color:var(--muted);font-size:.78rem}
.codewin pre{padding:18px 20px;line-height:1.75;overflow-x:auto;color:#b9c2cf}
.codewin .ln{color:#4a5361;display:inline-block;width:2.4em}
.codewin .g{color:var(--accent)}
.codewin .c{color:#5f6b7a}
.codewin .warn{background:rgba(255,92,92,.12);display:block;margin:0 -20px;padding:0 20px;border-left:3px solid #ff5c5c}
.codewin .warn .msg{color:#ff8a8a}

/* ---------- Product hero viz ---------- */
.hero-split{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.hero-viz{aspect-ratio:1/0.85;background:var(--bg-2);border:1px solid var(--line);border-radius:18px;overflow:hidden;position:relative}
.hero-viz .hud{position:absolute;left:14px;bottom:12px;right:14px;display:flex;justify-content:space-between;
  font-family:var(--mono);font-size:.75rem;color:var(--muted)}

/* toolpath animation */
.path-anim{stroke-dasharray:var(--len,1200);stroke-dashoffset:var(--len,1200);animation:draw 6s ease-in-out infinite}
@keyframes draw{0%{stroke-dashoffset:var(--len,1200)}70%,100%{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.path-anim{animation:none;stroke-dashoffset:0}}

/* ---------- CTA band ---------- */
.cta{text-align:center;padding:96px 0}
.cta h2{max-width:20ch;margin:0 auto}
.cta p{color:var(--muted);max-width:56ch;margin:16px auto 0}
.cta .hero-actions{justify-content:center}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;align-items:center}
footer nav{display:flex;gap:22px}
footer a:hover{color:var(--text)}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;pointer-events:none;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 20px;font-size:.95rem;
  box-shadow:0 20px 50px -10px rgba(0,0,0,.6);transition:all .3s ease;z-index:100}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .products,.grid-3,.steps,.split,.hero-split{grid-template-columns:1fr}
  .hero{padding:64px 0 48px}
  section{padding:64px 0}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 24px;width:100%;border-top:1px solid var(--line)}
  .menu-btn{display:block}
}