:root{
    --bg: #0E1016;
    --panel: #171A22;
    --panel-2: #1D212B;
    --line: #2A2F3B;
    --text: #ECEEF2;
    --muted: #8D93A3;
    --blue: #5B8DEF;
    --blue-soft: rgba(91,141,239,0.14);
    --amber: #F2A93B;
    --amber-soft: rgba(242,169,59,0.14);
    --good: #59C88E;
    --radius: 14px;
    --display: 'Space Grotesk', sans-serif;
    --body: 'Inter', sans-serif;
    --mono: 'JetBrains Mono', monospace;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:var(--body);
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:'';
    position:fixed; inset:0;
    background:
      radial-gradient(ellipse 700px 500px at 15% 0%, rgba(91,141,239,0.10), transparent 60%),
      radial-gradient(ellipse 600px 500px at 100% 20%, rgba(242,169,59,0.06), transparent 60%);
    pointer-events:none;
    z-index:0;
  }
  a{color:inherit;}
  img,svg{display:block; max-width:100%;}
  .wrap{max-width:1120px; margin:0 auto; padding:0 24px; position:relative; z-index:1;}
  section{position:relative; z-index:1;}

  /* ---- header ---- */
  header{
    position:sticky; top:0; z-index:10;
    background:rgba(14,16,22,0.82);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  header .wrap{
    display:flex; align-items:center; justify-content:space-between;
    height:68px;
  }
  .logo{
    display:flex; align-items:center; gap:10px;
    font-family:var(--display); font-weight:700; font-size:18px; letter-spacing:0.01em;
  }

  nav{display:flex; align-items:center; gap:28px;}
  nav a{
    font-size:14px; color:var(--muted); text-decoration:none;
    transition:color .15s ease;
  }
  nav a:hover{color:var(--text);}
  .btn{
    font-family:var(--body); font-weight:600; font-size:14px;
    border-radius:9px; border:none; cursor:pointer;
    transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
    white-space:nowrap;
  }
  .btn:focus-visible{outline:2px solid var(--blue); outline-offset:2px;}
  .btn-primary{
    background:var(--blue); color:#08101F;
    padding:10px 18px;
    box-shadow:0 0 0 0 rgba(91,141,239,0.5);
  }
  .btn-primary:hover{transform:translateY(-1px); box-shadow:0 6px 20px rgba(91,141,239,0.28);}
  .btn-primary:disabled{opacity:0.6; cursor:not-allowed; transform:none;}
  .btn-ghost{
    background:transparent; color:var(--text);
    border:1px solid var(--line);
    padding:9px 16px;
  }
  .btn-ghost:hover{border-color:#3A4152;}

  /* ---- hero ---- */
  .hero{padding:88px 0 60px;}
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-family:var(--mono); font-size:12px; letter-spacing:0.06em;
    color:var(--amber); background:var(--amber-soft);
    border:1px solid rgba(242,169,59,0.25);
    padding:6px 12px; border-radius:100px;
    margin-bottom:24px;
  }
  .eyebrow .dot{width:6px; height:6px; border-radius:50%; background:var(--amber);}
  h1{
    font-family:var(--display); font-weight:700;
    font-size:clamp(38px, 5.2vw, 64px);
    line-height:1.05; letter-spacing:-0.02em;
    max-width:820px;
  }
  h1 .accent{color:var(--blue);}
  .subhead{
    margin-top:22px; font-size:18px; color:var(--muted);
    max-width:560px; line-height:1.6;
  }
  .hero-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:56px;
    align-items:center; margin-top:56px;
  }
  @media (max-width:900px){ .hero-grid{grid-template-columns:1fr;} }


  .form-note{
    margin-top:12px; font-size:13px; color:var(--muted);
    display:flex; align-items:center; gap:8px; min-height:18px;
  }

  /* flow diagram */
  .flow-card{
    background:var(--panel); border:1px solid var(--line);
    border-radius:18px; padding:28px 22px;
  }
  .flow-card-label{
    font-family:var(--mono); font-size:11px; color:var(--muted);
    letter-spacing:0.05em; margin-bottom:18px; text-transform:uppercase;
  }
  .flow-node{
    display:flex; align-items:center; gap:10px;
    font-family:var(--mono); font-size:12.5px;
  }
  .flow-node .chip{
    background:var(--panel-2); border:1px solid var(--line);
    border-radius:8px; padding:9px 12px;
    display:flex; align-items:center; gap:8px;
  }
  .flow-node .chip-dot{
    width:7px; height:7px; border-radius:50%; background:var(--blue); flex-shrink:0;
  }

  /* ---- sections ---- */
  .section{padding:88px 0;}
  .section-head{max-width:600px; margin-bottom:48px;}
  .kicker{
    font-family:var(--mono); font-size:12px; color:var(--blue);
    letter-spacing:0.06em; text-transform:uppercase; margin-bottom:12px;
  }
  h2{
    font-family:var(--display); font-weight:600;
    font-size:clamp(26px, 3.4vw, 36px); letter-spacing:-0.01em;
  }
  .section-sub{margin-top:14px; color:var(--muted); font-size:16px;}

  .cards{display:grid; grid-template-columns:repeat(2,1fr); gap:18px;}
  @media (max-width:760px){ .cards{grid-template-columns:1fr;} }
  @media (max-width:980px){ #build-pricing .cards{grid-template-columns:repeat(2,1fr) !important;} }
  @media (max-width:560px){ #build-pricing .cards{grid-template-columns:1fr !important;} }
  .card{
    background:var(--panel); border:1px solid var(--line);
    border-radius:var(--radius); padding:26px;
  }
  .card h3{
    font-family:var(--display); font-weight:600; font-size:18px; margin-bottom:10px;
  }
  .card p{color:var(--muted); font-size:14.5px; line-height:1.6;}
  .card .chain{
    margin-top:16px; font-family:var(--mono); font-size:12px; color:var(--amber);
    background:var(--amber-soft); border:1px solid rgba(242,169,59,0.2);
    padding:8px 10px; border-radius:8px; word-break:break-word;
  }

  .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:24px;}
  @media (max-width:980px){ .steps{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:560px){ .steps{grid-template-columns:1fr;} }
  .step{border-top:1px solid var(--line); padding-top:20px;}
  .step .num{
    font-family:var(--mono); font-size:13px; color:var(--blue); margin-bottom:14px; display:block;
  }
  .step h3{font-family:var(--display); font-weight:600; font-size:18px; margin-bottom:10px;}
  .step p{color:var(--muted); font-size:14.5px; line-height:1.6;}

  .why{
    background:var(--panel); border:1px solid var(--line);
    border-radius:18px; padding:44px; display:grid;
    grid-template-columns:1fr 1fr; gap:40px;
  }
  @media (max-width:760px){ .why{grid-template-columns:1fr;} }
  .why h3{font-family:var(--display); font-size:17px; font-weight:600; margin-bottom:10px;}
  .why p{color:var(--muted); font-size:14.5px; line-height:1.6;}

  .pricing-grid{
    display:grid; grid-template-columns:repeat(3,1fr); gap:20px;
    align-items:stretch;
  }
  @media (max-width:900px){ .pricing-grid{grid-template-columns:1fr;} }
  .plan{
    background:var(--panel); border:1px solid var(--line);
    border-radius:18px; padding:30px 26px;
    display:flex; flex-direction:column;
    position:relative;
  }
  .plan.featured{
    border-color:var(--blue);
    background:linear-gradient(180deg, var(--panel-2), var(--panel));
    box-shadow:0 0 0 1px rgba(91,141,239,0.25), 0 20px 40px rgba(91,141,239,0.10);
  }
  .plan-badge{
    position:absolute; top:-13px; left:26px;
    background:var(--blue); color:#08101F;
    font-family:var(--mono); font-size:11px; font-weight:500;
    letter-spacing:0.04em; text-transform:uppercase;
    padding:5px 12px; border-radius:100px;
  }
  .plan-name{
    font-family:var(--mono); font-size:12px; letter-spacing:0.08em;
    text-transform:uppercase; color:var(--blue); margin-bottom:16px;
  }
  .plan-price{
    font-family:var(--display); font-weight:700;
    font-size:36px; letter-spacing:-0.01em; margin-bottom:2px;
  }
  .plan-price .cadence{
    font-family:var(--body); font-weight:400; font-size:15px; color:var(--muted);
  }
  .plan-price-tag{
    font-family:var(--mono); font-size:11px; color:var(--muted);
    text-transform:uppercase; letter-spacing:0.04em; margin-bottom:2px;
  }
  .plan hr{border:none; border-top:1px solid var(--line); margin:20px 0;}
  .plan-features{list-style:none; flex:1;}
  .plan-features li{
    display:flex; align-items:flex-start; gap:10px;
    font-size:14px; color:var(--text); padding:8px 0;
  }
  .plan-features li svg{flex-shrink:0; margin-top:2px;}
  .plan-note{
    margin-top:18px; font-size:12px; color:var(--muted); line-height:1.5;
  }
  .plan-cta{margin-top:22px; width:100%; padding:11px 0; text-align:center; text-decoration:none; display:block;}

  .cta-band{
    background:linear-gradient(135deg, rgba(91,141,239,0.12), rgba(242,169,59,0.08));
    border:1px solid var(--line);
    border-radius:20px; padding:56px 44px; text-align:center;
  }
  .cta-band h2{max-width:none;}
  .cta-band .form-note{justify-content:center;}

  footer{border-top:1px solid var(--line); padding:36px 0; margin-top:20px;}
  footer .wrap{
    display:flex; justify-content:space-between; align-items:center;
    font-size:13px; color:var(--muted); flex-wrap:wrap; gap:12px;
  }

  @media (prefers-reduced-motion: reduce){
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
  }

  /* ---- multi-page additions ---- */
  nav a.active{color:var(--text); position:relative;}
  nav a.active::after{
    content:''; position:absolute; left:0; right:0; bottom:-24px;
    height:2px; background:var(--blue); border-radius:2px;
  }
  .page-hero{padding:72px 0 8px;}
  .page-hero h1{font-size:clamp(32px,4.4vw,52px); max-width:760px;}
  .page-hero .subhead{max-width:640px;}
  .breadcrumb{
    font-family:var(--mono); font-size:12px; color:var(--muted);
    letter-spacing:0.05em; text-transform:uppercase; margin-bottom:18px;
  }
  .breadcrumb a{color:var(--muted); text-decoration:none;}
  .breadcrumb a:hover{color:var(--text);}
  .nav-toggle{display:none; background:none; border:1px solid var(--line); border-radius:8px; padding:8px 12px; color:var(--text); cursor:pointer; font-size:13px;}
  @media (max-width:820px){
    .nav-toggle{display:block;}
    nav{
      display:none; position:absolute; top:68px; left:0; right:0;
      background:var(--bg); border-bottom:1px solid var(--line);
      flex-direction:column; align-items:stretch; gap:0; padding:8px 24px 18px;
    }
    nav.open{display:flex;}
    nav a{padding:12px 0; border-bottom:1px solid var(--line);}
    nav a:last-child{border-bottom:none; margin-top:12px; text-align:center;}
    nav a.active::after{display:none;}
  }
  .next-links{display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:14px;}
  @media (max-width:760px){ .next-links{grid-template-columns:1fr;} }
  .next-card{
    background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
    padding:22px; text-decoration:none; display:block;
    transition:border-color .15s ease, transform .15s ease;
  }
  .next-card:hover{border-color:var(--blue); transform:translateY(-2px);}
  .next-card .lbl{font-family:var(--mono); font-size:11px; color:var(--blue); letter-spacing:0.06em; text-transform:uppercase;}
  .next-card h3{font-family:var(--display); font-size:17px; font-weight:600; margin:10px 0 6px;}
  .next-card p{color:var(--muted); font-size:14px; line-height:1.55;}
  .faq{border-top:1px solid var(--line); padding:22px 0;}
  .faq h3{font-family:var(--display); font-size:16.5px; font-weight:600; margin-bottom:8px;}
  .faq p{color:var(--muted); font-size:14.5px; line-height:1.65;}