:root{
    --bg:#0a0a0f;
    --bg2:#0f0f18;
    --pink:#ff2ea6;
    --blue:#2ee6ff;
    --green:#2eff9d;
    --orange:#ff9d2e;
    --text:#e8e8f0;
    --muted:#8b8b9e;
    --card:#12121c;
    --card2:#161622;
    --border:rgba(255,255,255,0.08);
    --border-strong:rgba(255,255,255,0.16);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:'Inter',sans-serif;
    overflow-x:hidden;
    background-image:
      linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size:40px 40px;
  }
  h1,h2,h3{font-family:'Space Grotesk',sans-serif;}
  code, .mono{font-family:'JetBrains Mono',monospace;}
  a{text-decoration:none;color:inherit;}
  a:focus-visible, button:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px;}
  .wrap{max-width:1100px;margin:0 auto;padding:0 24px;}

  .skip-link{position:absolute;left:-999px;top:0;background:var(--blue);color:#0a0a0f;padding:10px 18px;border-radius:0 0 8px 0;font-weight:600;z-index:999;}
  .skip-link:focus{left:0;}

  @media (prefers-reduced-motion: reduce){
    *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  }

  nav{display:flex;justify-content:space-between;align-items:center;padding:22px 0;flex-wrap:wrap;gap:14px;position:sticky;top:0;z-index:50;background:rgba(10,10,15,0.75);backdrop-filter:blur(10px);border-bottom:1px solid transparent;}
  nav.scrolled{border-bottom:1px solid var(--border);}
  .logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.3rem;
    background:linear-gradient(90deg,var(--pink),var(--blue));
    -webkit-background-clip:text;background-clip:text;color:transparent;}
  .nav-links{display:flex;flex-wrap:wrap;align-items:center;}
  .nav-link{color:var(--muted);font-size:0.88rem;margin-left:24px;transition:color .2s;white-space:nowrap;}
  .nav-link:hover{color:var(--text);}
  .nav-cta{margin-left:24px;padding:9px 18px;border-radius:8px;border:1px solid var(--border-strong);font-size:0.85rem;font-weight:600;transition:all .2s;}
  .nav-cta:hover{border-color:var(--blue);box-shadow:0 0 14px rgba(46,230,255,0.25);}

  .hero{text-align:center;padding:90px 24px 76px;position:relative;}
  .hero::before{
    content:"";position:absolute;top:6%;left:50%;transform:translateX(-50%);
    width:650px;height:650px;
    background:radial-gradient(circle, rgba(255,46,166,0.14), transparent 70%);
    filter:blur(40px);z-index:-1;
  }
  .badge{display:inline-block;padding:6px 16px;border:1px solid var(--border);
    border-radius:999px;font-size:0.8rem;color:var(--blue);margin-bottom:24px;
    background:rgba(46,230,255,0.05);}
  .hero h1{font-size:clamp(2.3rem,5.6vw,4rem);font-weight:700;line-height:1.12;
    color:#fff;
    margin-bottom:20px;}
  .hero h1 span{
    background:linear-gradient(90deg,var(--pink),var(--blue));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero p{color:var(--muted);font-size:1.12rem;max-width:600px;margin:0 auto 40px;line-height:1.6;}
  .btn-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
  .btn{
    padding:14px 32px;border-radius:10px;font-weight:600;font-size:0.95rem;
    display:inline-block;transition:all .25s ease;border:1px solid transparent;
  }
  .btn-primary{
    background:linear-gradient(90deg,var(--pink),var(--blue));
    color:#0a0a0f;box-shadow:0 0 20px rgba(255,46,166,0.3),0 0 20px rgba(46,230,255,0.2);
  }
  .btn-primary:hover{box-shadow:0 0 34px rgba(255,46,166,0.55),0 0 34px rgba(46,230,255,0.4);transform:translateY(-2px);}
  .btn-ghost{border-color:var(--border);color:var(--text);}
  .btn-ghost:hover{border-color:var(--blue);box-shadow:0 0 16px rgba(46,230,255,0.25);}

  /* hero strip stats */
  .hero-strip{display:flex;justify-content:center;gap:36px;flex-wrap:wrap;margin-top:56px;color:var(--muted);font-size:0.82rem;}
  .hero-strip div{display:flex;align-items:center;gap:8px;}
  .hero-strip .dot{width:6px;height:6px;border-radius:50%;background:var(--blue);}

  section{padding:76px 0;}
  .eyebrow{color:var(--pink);font-size:0.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;display:block;text-align:center;}
  .section-title{text-align:center;margin-bottom:48px;}
  .section-title h2{font-size:clamp(1.6rem,4vw,2.3rem);margin-bottom:12px;}
  .section-title p{color:var(--muted);font-size:1rem;max-width:620px;margin:0 auto;line-height:1.6;}

  .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;}
  .card{
    background:var(--card);border:1px solid var(--border);border-radius:16px;
    padding:28px;transition:all .3s ease;position:relative;overflow:hidden;
    opacity:0;transform:translateY(16px);animation:fadeIn .6s ease forwards;
  }
  .card:nth-child(1){animation-delay:.05s;}
  .card:nth-child(2){animation-delay:.15s;}
  .card:nth-child(3){animation-delay:.25s;}
  .card:nth-child(4){animation-delay:.35s;}
  .card:nth-child(5){animation-delay:.45s;}
  @keyframes fadeIn{to{opacity:1;transform:translateY(0);}}
  .card:hover{
    border-color:rgba(255,46,166,0.4);
    box-shadow:0 0 30px rgba(255,46,166,0.12), 0 0 30px rgba(46,230,255,0.08);
    transform:translateY(-4px);
  }
  .card .icon{
    width:44px;height:44px;border-radius:10px;margin-bottom:16px;
    background:linear-gradient(135deg,var(--pink),var(--blue));
    display:flex;align-items:center;justify-content:center;font-size:1.3rem;
  }
  .card h3{font-size:1.1rem;margin-bottom:8px;}
  .card p{color:var(--muted);font-size:0.9rem;line-height:1.55;}
  .card ul{margin-top:12px;padding-left:0;list-style:none;}
  .card ul li{color:var(--muted);font-size:0.84rem;padding:4px 0 4px 16px;position:relative;line-height:1.4;}
  .card ul li::before{content:"›";position:absolute;left:0;color:var(--blue);}
  .card .tag{display:inline-block;margin-top:14px;padding:3px 10px;border-radius:999px;font-size:0.7rem;font-weight:600;letter-spacing:.02em;}
  .tag-local{background:rgba(46,230,255,0.1);color:var(--blue);}
  .tag-cloud{background:rgba(46,255,157,0.1);color:var(--green);}
  .tag-provider{background:rgba(255,46,166,0.1);color:var(--pink);}
  .tag-agent{background:rgba(255,157,46,0.1);color:var(--orange);}
  .tag-escalation{background:rgba(255,255,255,0.08);color:var(--text);}

  .features{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
  .feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:2px;
    background:var(--border);border:1px solid var(--border);border-radius:16px;overflow:hidden;}
  .feat{background:var(--bg2);padding:26px;transition:background .25s;}
  .feat:hover{background:var(--card);}
  .feat h3{font-size:1rem;margin-bottom:6px;display:flex;align-items:center;gap:8px;}
  .feat h3::before{content:"◆";color:var(--pink);font-size:0.7rem;}
  .feat p{color:var(--muted);font-size:0.85rem;line-height:1.5;}

  /* ---- How it works: numbered step flow ---- */
  .steps{display:flex;flex-direction:column;gap:0;max-width:720px;margin:0 auto;}
  .step{display:flex;gap:22px;padding:22px 0;position:relative;}
  .step:not(:last-child)::before{
    content:"";position:absolute;left:23px;top:56px;bottom:-6px;width:1px;
    background:linear-gradient(var(--border-strong),transparent);
  }
  .step-num{
    flex:none;width:48px;height:48px;border-radius:50%;
    background:var(--card2);border:1px solid var(--border-strong);
    display:flex;align-items:center;justify-content:center;
    font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem;color:var(--blue);
  }
  .step-body h3{font-size:1.02rem;margin-bottom:6px;}
  .step-body p{color:var(--muted);font-size:0.9rem;line-height:1.55;}

  /* ---- Architecture flow diagram ---- */
  .flow-wrap{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:44px 28px;position:relative;}
  .flow{display:flex;flex-direction:column;align-items:center;gap:0;}
  .flow-node{
    width:100%;max-width:420px;background:var(--card2);border:1px solid var(--border-strong);
    border-radius:12px;padding:16px 20px;text-align:center;position:relative;z-index:2;
  }
  .flow-node.accent{border-color:rgba(46,230,255,0.5);box-shadow:0 0 22px rgba(46,230,255,0.12);}
  .flow-node.pink{border-color:rgba(255,46,166,0.5);box-shadow:0 0 22px rgba(255,46,166,0.12);}
  .flow-node h4{font-size:0.95rem;font-weight:600;margin-bottom:3px;}
  .flow-node span{color:var(--muted);font-size:0.78rem;}
  .flow-arrow{color:var(--border-strong);font-size:1.4rem;line-height:1;padding:6px 0;}
  .flow-pool{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;
    width:100%;max-width:640px;margin:4px 0;
  }
  .flow-pool .flow-node{max-width:none;padding:12px 14px;}
  .flow-pool .flow-node h4{font-size:0.82rem;}
  .flow-pool .flow-node span{font-size:0.72rem;}
  .flow-branch{
    display:flex;gap:18px;align-items:stretch;width:100%;max-width:640px;justify-content:center;flex-wrap:wrap;
  }
  .flow-branch .flow-col{flex:1;min-width:260px;display:flex;flex-direction:column;align-items:center;}
  .escalation-note{
    margin-top:18px;padding:14px 18px;border:1px dashed var(--border-strong);border-radius:10px;
    color:var(--muted);font-size:0.82rem;text-align:center;max-width:480px;
  }
  .escalation-note b{color:var(--orange);}

  /* ---- Status section ---- */
  .status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;}
  .status-col{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px;}
  .status-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .status-dot{width:10px;height:10px;border-radius:50%;}
  .dot-current{background:var(--green);box-shadow:0 0 8px var(--green);}
  .dot-experimental{background:var(--orange);box-shadow:0 0 8px var(--orange);}
  .dot-planned{background:var(--muted);}
  .status-head h3{font-size:1rem;}
  .status-col ul{list-style:none;}
  .status-col li{color:var(--muted);font-size:0.86rem;padding:7px 0;border-bottom:1px solid var(--border);line-height:1.4;}
  .status-col li:last-child{border-bottom:none;}

  /* ---- Get started ---- */
  .get-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:40px;}
  .get-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px;text-align:center;transition:all .25s;}
  .get-card:hover{border-color:var(--border-strong);transform:translateY(-3px);}
  .get-card .icon{width:44px;height:44px;margin:0 auto 14px;border-radius:10px;
    background:linear-gradient(135deg,var(--pink),var(--blue));display:flex;align-items:center;justify-content:center;font-size:1.3rem;}
  .get-card h3{font-size:1rem;margin-bottom:6px;}
  .get-card p{color:var(--muted);font-size:0.84rem;margin-bottom:16px;line-height:1.5;}
  .get-card a.btn{padding:9px 20px;font-size:0.84rem;}

  .req-box{background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:30px;}
  .req-box h3{font-size:1rem;margin-bottom:16px;}
  .req-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;}
  .req-list li{color:var(--muted);font-size:0.86rem;padding-left:18px;position:relative;line-height:1.4;}
  .req-list li::before{content:"—";position:absolute;left:0;color:var(--blue);}

  .key-box{background:var(--card);border:1px solid var(--border-strong);border-radius:16px;padding:30px;margin-bottom:24px;}
  .key-box h3{font-size:1.05rem;margin-bottom:6px;}
  .key-box p{color:var(--muted);font-size:0.86rem;margin-bottom:18px;line-height:1.5;}
  .key-form{display:flex;gap:10px;flex-wrap:wrap;}
  .key-form input{
    flex:1;min-width:220px;background:var(--bg2);border:1px solid var(--border);
    color:var(--text);padding:12px 14px;border-radius:8px;font-size:0.9rem;font-family:'Inter',sans-serif;
  }
  .key-form input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(46,230,255,0.12);}
  .key-form button{
    padding:12px 24px;border-radius:8px;font-weight:600;font-size:0.9rem;border:none;cursor:pointer;
    background:linear-gradient(90deg,var(--pink),var(--blue));color:#0a0a0f;transition:opacity .2s;
  }
  .key-form button:hover{opacity:.9;}
  .key-form button:disabled{opacity:.5;cursor:not-allowed;}
  .key-result{margin-top:16px;padding:14px 16px;border-radius:8px;border:1px dashed var(--border-strong);
    font-family:'JetBrains Mono',monospace;font-size:0.88rem;display:none;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
  .key-result.show{display:flex;}
  .key-result .copy-btn{background:var(--card2);border:1px solid var(--border);color:var(--text);
    padding:6px 12px;border-radius:6px;font-size:0.78rem;cursor:pointer;font-family:'Inter',sans-serif;}
  .key-status{font-size:0.78rem;margin-top:10px;color:var(--muted);}
  .key-status.error{color:var(--pink);}
  .key-status.ok{color:var(--green);}

  .note-box{
    background:rgba(46,230,255,0.04);border:1px solid rgba(46,230,255,0.25);border-radius:14px;
    padding:18px 22px;font-size:0.86rem;color:var(--muted);line-height:1.6;margin-top:32px;
  }
  .note-box b{color:var(--text);}

  footer{padding:48px 24px;text-align:center;border-top:1px solid var(--border);}
  footer .foot-links{display:flex;gap:24px;justify-content:center;margin-bottom:20px;flex-wrap:wrap;}
  footer .foot-links a{color:var(--muted);font-size:0.9rem;transition:color .2s;}
  footer .foot-links a:hover{color:var(--blue);}
  footer .credit{color:var(--muted);font-size:0.8rem;margin-bottom:6px;}
  footer .credit span{color:var(--pink);}
  footer .disclosure{color:var(--muted);opacity:.65;font-size:0.74rem;max-width:560px;margin:14px auto 0;line-height:1.5;}

  @media(max-width:700px){
    .flow-branch{flex-direction:column;align-items:center;}
  }
  @media(max-width:600px){
    nav{flex-direction:column;gap:12px;}
    .nav-links{justify-content:center;}
    .nav-link{margin:0 10px;}
    .nav-cta{margin:8px 0 0;}
    .btn-row{flex-direction:column;align-items:center;}
    .hero-strip{gap:18px;}
  }

/* ---- Multi-page nav / OAuth signup ---- */
.nav-link.active{color:var(--text);position:relative;}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-20px;height:2px;background:linear-gradient(90deg,var(--pink),var(--blue));}

.page-hero{text-align:center;padding:64px 24px 24px;}
.page-hero .eyebrow{margin-bottom:10px;}
.page-hero h1{font-size:clamp(2rem,5vw,2.8rem);margin-bottom:14px;}
.page-hero p{color:var(--muted);max-width:640px;margin:0 auto;font-size:1.05rem;line-height:1.6;}

.home-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:56px;}
.home-link-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px;
  text-align:left;transition:all .25s ease;display:block;
}
.home-link-card:hover{border-color:rgba(255,46,166,0.4);box-shadow:0 0 26px rgba(255,46,166,0.12);transform:translateY(-3px);}
.home-link-card .icon{width:40px;height:40px;border-radius:9px;margin-bottom:14px;
  background:linear-gradient(135deg,var(--pink),var(--blue));display:flex;align-items:center;justify-content:center;font-size:1.15rem;}
.home-link-card h3{font-size:1.02rem;margin-bottom:6px;}
.home-link-card p{color:var(--muted);font-size:0.85rem;line-height:1.5;}
.home-link-card .arrow{margin-top:12px;color:var(--blue);font-size:0.82rem;font-weight:600;}

.auth-wrap{max-width:420px;margin:0 auto;background:var(--card);border:1px solid var(--border-strong);border-radius:18px;padding:36px 32px;}
.auth-wrap h2{font-size:1.3rem;text-align:center;margin-bottom:6px;}
.auth-wrap>p{color:var(--muted);font-size:0.86rem;text-align:center;margin-bottom:26px;line-height:1.5;}
.oauth-btn{
  width:100%;display:flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 18px;border-radius:10px;font-weight:600;font-size:0.92rem;margin-bottom:12px;
  border:1px solid var(--border-strong);background:var(--card2);color:var(--text);cursor:pointer;transition:all .2s;
}
.oauth-btn:hover{border-color:var(--border-strong);background:#1b1b28;transform:translateY(-1px);}
.oauth-btn svg{flex:none;}
.oauth-btn.github:hover{box-shadow:0 0 18px rgba(255,255,255,0.08);}
.oauth-btn.google:hover{box-shadow:0 0 18px rgba(46,230,255,0.15);}

.auth-divider{display:flex;align-items:center;gap:12px;margin:22px 0;color:var(--muted);font-size:0.78rem;}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:var(--border);}

.auth-note{margin-top:20px;font-size:0.76rem;color:var(--muted);text-align:center;line-height:1.5;}
.auth-note a{color:var(--blue);}