/* ===== tokens ===== */
:root{
  --bg:#0a0c10; --bg-2:#0e1117; --panel:#141821; --panel-2:#1a2030;
  --line:#222a38; --line-2:#2c3648;
  --text:#e6edf3; --muted:#9aa7b8; --faint:#6b7888;
  --accent:#36d399; --accent-2:#22d3ee; --accent-3:#818cf8;
  --warn:#fbbf24; --danger:#f87171;
  --radius:16px; --radius-sm:10px;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --maxw:1100px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:var(--sans);background:var(--bg);color:var(--text);
  line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  word-break:keep-all;overflow-wrap:break-word;
}
a{color:inherit;text-decoration:none}
code{font-family:var(--mono);font-size:.86em;background:var(--panel-2);
  padding:.12em .42em;border-radius:6px;color:var(--accent-2);border:1px solid var(--line)}
em{font-style:normal;color:var(--accent)}
strong{color:#fff;font-weight:600}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px var(--accent);margin-right:.5rem}

/* ===== nav ===== */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;
  justify-content:space-between;gap:1rem;padding:.9rem clamp(1rem,4vw,2.5rem);
  background:rgba(10,12,16,.72);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);transition:border-color .3s}
.nav__brand{font-weight:800;letter-spacing:-.02em;font-size:1.02rem}
.nav__brandsub{color:var(--faint);font-weight:500}
.nav__links{display:flex;gap:1.4rem;font-size:.92rem;color:var(--muted)}
.nav__links a{position:relative;transition:color .2s}
.nav__links a:hover{color:var(--text)}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;
  width:0;background:var(--accent);transition:width .25s}
.nav__links a:hover::after{width:100%}
@media(max-width:680px){.nav__links{display:none}}

/* ===== layout ===== */
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(3.5rem,8vw,6rem) clamp(1.1rem,4vw,2rem)}
.section__title{font-size:clamp(1.6rem,3.6vw,2.3rem);font-weight:800;letter-spacing:-.03em}
.section__sub{color:var(--muted);margin-top:.6rem;max-width:60ch}
.section__note{color:var(--muted);margin-top:2rem;max-width:65ch;font-size:.96rem}

/* ===== hero ===== */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero__inner{max-width:var(--maxw);margin:0 auto;
  padding:clamp(4rem,12vw,7.5rem) clamp(1.1rem,4vw,2rem) clamp(3rem,8vw,5rem);position:relative;z-index:2}
.hero__eyebrow{font-family:var(--mono);font-size:.84rem;color:var(--accent);
  letter-spacing:.04em;margin-bottom:1.3rem}
.blink{animation:blink 1.1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
.hero__title{font-size:clamp(2.4rem,7vw,4.4rem);font-weight:800;
  line-height:1.05;letter-spacing:-.04em}
.grad{background:linear-gradient(110deg,var(--accent),var(--accent-2) 55%,var(--accent-3));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero__lead{margin-top:1.6rem;font-size:clamp(1.02rem,2vw,1.22rem);
  color:var(--muted);max-width:62ch}
.hero__glow{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(60% 50% at 80% -10%,rgba(54,211,153,.18),transparent 60%),
             radial-gradient(50% 50% at 10% 10%,rgba(129,140,248,.12),transparent 60%)}

/* ===== stats ===== */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media(max-width:760px){.stats{grid-template-columns:1fr}}
.stat{background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem 1.1rem;text-align:center}
.stat__num{display:block;font-family:var(--mono);font-size:clamp(1.5rem,3vw,2rem);
  font-weight:700;color:#fff;letter-spacing:-.02em}
.stat__label{display:block;color:var(--muted);font-size:.82rem;margin-top:.4rem}

/* ===== architecture ===== */
.arch{margin-top:2.2rem;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:clamp(1.4rem,4vw,2.4rem);text-align:center}
.arch__layer{display:flex;flex-direction:column;align-items:center;gap:.7rem}
.arch__box{display:inline-block;padding:.7rem 1.3rem;border-radius:var(--radius-sm);
  font-weight:600;border:1px solid var(--line-2)}
.arch__box small{color:var(--faint);font-weight:400}
.arch__box--edge{background:var(--panel);color:var(--muted)}
.arch__box--proxy{background:linear-gradient(180deg,var(--panel-2),var(--panel));color:var(--accent-2)}
.arch__arrow{color:var(--faint);font-family:var(--mono);font-size:.85rem;margin:.5rem 0}
.arch__arrow span{color:var(--accent)}
.arch__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:.4rem;text-align:left}
@media(max-width:760px){.arch__grid{grid-template-columns:1fr}}
.arch__col{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:1.1rem}
.arch__coltitle{font-family:var(--mono);font-size:.78rem;color:var(--faint);
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:.7rem}
.chip{display:inline-block;background:var(--panel-2);border:1px solid var(--line-2);
  color:var(--muted);font-size:.8rem;padding:.25rem .6rem;border-radius:8px;margin:.18rem .18rem 0 0}
.arch__caption{color:var(--faint);font-size:.84rem;margin-top:1.6rem;text-align:center}

/* ===== cards ===== */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:1.1rem;margin-top:2.4rem}
.card{background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;
  transition:transform .2s,border-color .2s,box-shadow .2s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));opacity:0;transition:opacity .25s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);
  box-shadow:0 18px 40px -20px rgba(0,0,0,.7)}
.card:hover::before{opacity:1}
.card__icon{font-size:1.6rem;margin-bottom:.7rem}
.card h3{font-size:1.05rem;letter-spacing:-.01em;margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.93rem}

/* ===== feature ===== */
.feature{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.4rem,4vw,3rem);
  align-items:center;margin-top:2.6rem}
.feature--rev .feature__text{order:2}
@media(max-width:820px){.feature,.feature--rev .feature__text{grid-template-columns:1fr;order:0}}
.feature__tag{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent);border:1px solid var(--line-2);
  padding:.2rem .6rem;border-radius:6px}
.feature__text h3{font-size:clamp(1.3rem,3vw,1.7rem);margin:.9rem 0 .7rem;letter-spacing:-.02em}
.feature__text p{color:var(--muted)}
.feature__list{list-style:none;margin-top:1rem;display:grid;gap:.5rem}
.feature__list li{position:relative;padding-left:1.5rem;color:var(--text);font-size:.93rem}
.feature__list li::before{content:"▹";position:absolute;left:0;color:var(--accent)}
.feature__shot{width:100%}

/* image placeholder */
.placeholder{aspect-ratio:3/2;width:100%;border:1.5px dashed var(--line-2);
  border-radius:var(--radius);background:
    repeating-linear-gradient(45deg,transparent,transparent 12px,rgba(255,255,255,.012) 12px,rgba(255,255,255,.012) 24px),
    var(--bg-2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:.55rem;text-align:center;padding:1.5rem;color:var(--faint)}
.placeholder span{font-size:2rem;filter:grayscale(.3);opacity:.8}
.placeholder code{background:var(--panel-2);color:var(--accent-2)}
.placeholder small{color:var(--faint);font-size:.78rem;max-width:32ch}
.shot-img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);cursor:zoom-in;transition:opacity .2s}
.shot-img:hover{opacity:.88}

/* ===== lightbox ===== */
.lightbox{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(6,7,10,.92);backdrop-filter:blur(4px);padding:clamp(1.5rem,5vw,4rem);cursor:zoom-out}
.lightbox.is-open{display:flex}
.lightbox__img{max-width:100%;max-height:100%;border-radius:var(--radius-sm);
  box-shadow:0 24px 60px -20px rgba(0,0,0,.8);cursor:default}
.lightbox__close{position:fixed;top:1.2rem;right:1.4rem;width:2.6rem;height:2.6rem;
  border-radius:50%;border:1px solid var(--line-2);background:var(--panel);color:var(--text);
  font-size:1.1rem;line-height:1;cursor:pointer;transition:border-color .2s,color .2s}
.lightbox__close:hover{border-color:var(--accent);color:var(--accent)}

/* ===== footer ===== */
.footer{border-top:1px solid var(--line);background:var(--bg-2);margin-top:3rem}
.footer__inner{max-width:var(--maxw);margin:0 auto;padding:2.4rem clamp(1.1rem,4vw,2rem);
  display:flex;flex-direction:column;gap:.5rem}
.footer__brand{font-weight:700}
.footer__note{color:var(--faint);font-size:.88rem;max-width:60ch}
.footer__links{margin-top:.6rem;display:flex;gap:1.2rem;font-size:.9rem}
.footer__links a{color:var(--muted)}
.footer__links a:hover{color:var(--accent)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.blink{animation:none}}