/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#09090b;--bg-elev:#121214;--bg-card:#18181b;
  --border:rgba(255,255,255,.08);--border-h:rgba(255,255,255,.15);
  --text:#fafafa;--muted:#a1a1aa;
  --accent:#6366f1;--accent-l:#818cf8;
  --glow:rgba(99,102,241,.15);--green:#34d399;
  --mono:'SF Mono','Fira Code',Menlo,monospace;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI','Inter',sans-serif;
  --ease:cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ===== Navbar ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(9,9,11,.8);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1120px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:700;font-size:15px;display:flex;align-items:center;gap:6px}
.logo span{color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:24px}
.nav-link{font-size:14px;color:var(--muted);transition:color .2s}
.nav-link:hover{color:var(--text)}
.btn-github{display:flex;align-items:center;gap:6px;background:var(--bg-card);border:1px solid var(--border);padding:7px 14px;border-radius:8px;font-size:13px;font-weight:500;transition:all .2s}
.btn-github:hover{background:var(--border);border-color:var(--border-h)}

/* ===== Hero ===== */
.hero{padding:160px 24px 100px;text-align:position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-300px;left:50%;transform:translateX(-50%);width:900px;height:900px;background:radial-gradient(circle,var(--glow) 0%,transparent 70%);pointer-events:none}
.hero-inner{position:relative;max-width:720px;margin:0 auto}
.hero-badge{display:inline-flex;gap:10px;font-size:13px;color:var(--muted);margin-bottom:28px;padding:6px 18px;background:var(--bg-elev);border:1px solid var(--border);border-radius:100px}
.hero h1{font-size:clamp(2.2rem,5vw,3.5rem);font-weight:800;line-height:1.15;letter-spacing:-.03em;margin-bottom:20px}
.gradient{background:linear-gradient(135deg,var(--accent-l),#a78bfa,#f472b6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:17px;color:var(--muted);margin-bottom:36px;line-height:1.7}
.hero-actions{display:flex;gap:14px;justify-content:center}
.btn-primary{background:var(--accent);color:#fff;padding:12px 28px;border-radius:10px;font-weight:600;font-size:15px;transition:all .2s;box-shadow:0 0 20px var(--glow)}
.btn-primary:hover{background:var(--accent-l);transform:translateY(-1px)}
.btn-secondary{background:var(--bg-elev);border:1px solid var(--border);padding:12px 28px;border-radius:10px;font-weight:600;font-size:15px;transition:all .2s}
.btn-secondary:hover{border-color:var(--border-h);transform:translateY(-1px)}

/* ===== Section ===== */
.section{padding:80px 24px}
.section-alt{background:var(--bg-elev)}
.section h2{font-size:26px;font-weight:700;text-align:center;margin-bottom:6px}
.subtitle{text-align:center;color:var(--muted);margin-bottom:48px;font-size:15px}

/* ===== Grid ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:24px;transition:all .25s}
.card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 30px var(--glow)}
.card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted);line-height:1.6}

/* ===== Install ===== */
.install-block{max-width:640px;margin:0 auto 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.install-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border);font-size:14px;font-weight:600}
.badge{font-size:11px;padding:2px 10px;background:var(--accent);color:#fff;border-radius:100px;font-weight:600}
.code-row{display:flex;align-items:center;padding:16px 20px;gap:12px}
.code-row code{font-family:var(--mono);font-size:13px;color:var(--green);flex:1;word-break:break-all}
.copy-btn{background:transparent;border:1px solid var(--border);color:var(--muted);padding:5px 12px;border-radius:6px;font-size:12px;cursor:pointer;transition:all .2s;white-space:nowrap}
.copy-btn:hover{border-color:var(--accent);color:var(--accent)}

/* ===== Architecture ===== */
.arch-flow{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}
.arch-step{text-align:center;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:20px 16px;min-width:140px;transition:border-color .2s}
.arch-step:hover{border-color:var(--accent)}
.arch-icon{font-size:30px;margin-bottom:10px}
.arch-label{font-size:14px;font-weight:600;margin-bottom:4px}
.arch-tag{font-size:12px;color:var(--muted)}
.arch-arrow{font-size:20px;color:var(--muted)}

/* ===== Footer ===== */
footer{padding:48px 24px;border-top:1px solid var(--border)}
.footer-inner{text-align:center}
.footer-logo{font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:6px;margin-bottom:14px}
.footer-logo span{color:var(--accent)}
.footer-links{display:flex;gap:20px;justify-content:center;margin-bottom:14px}
.footer-links a{color:var(--muted);font-size:14px;transition:color .2s}
.footer-links a:hover{color:var(--text)}
footer p{font-size:13px;color:var(--muted)}

/* ===== Responsive ===== */
@media(max-width:768px){
  .nav-right{gap:12px}
  .nav-link{display:none}
  .hero{padding:120px 20px 60px}
  .hero-actions{flex-direction:column;align-items:center}
  .grid{grid-template-columns:1fr}
  .arch-flow{flex-direction:column}
  .arch-arrow{transform:rotate(90deg)}
}