:root{
    --bg:#070b09;
    --bg-2:#0a110d;
    --glass:rgba(16,26,20,0.46);
    --glass-strong:rgba(10,18,14,0.74);
    --border:rgba(122,255,168,0.14);
    --border-strong:rgba(122,255,168,0.30);
    --green:#4ee787;
    --green-bright:#8affbf;
    --green-deep:#1f8a52;
    --text:#e9f3ec;
    --muted:#8fa79a;
    --muted-2:#6b7f74;
    --glow:rgba(78,231,135,0.35);
    --maxw:1120px;
    --ease:cubic-bezier(.2,.7,.2,1);
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

  body{
    background:var(--bg);
    color:var(--text);
    font-family:"Zen Kaku Gothic New","Space Grotesk",system-ui,sans-serif;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  /* ambient green glow field */
  body::before{
    content:"";
    position:fixed;inset:0;
    background:
      radial-gradient(60vw 50vh at 82% -8%, rgba(78,231,135,0.10), transparent 60%),
      radial-gradient(50vw 40vh at 8% 108%, rgba(31,138,82,0.12), transparent 60%);
    pointer-events:none;z-index:0;
  }

  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}

  a{color:inherit;text-decoration:none}
  .mono{font-family:"JetBrains Mono",monospace}

  /* ---------- NAV ---------- */
  .nav{
    position:fixed;top:0;left:0;right:0;z-index:50;
    display:flex;align-items:center;justify-content:space-between;
    padding:16px clamp(20px,5vw,40px);
    transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
    border-bottom:1px solid transparent;
  }
  .nav.scrolled{
    background:var(--glass-strong);
    backdrop-filter:blur(16px) saturate(1.2);
    -webkit-backdrop-filter:blur(16px) saturate(1.2);
    border-bottom:1px solid var(--border);
  }
  .brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.02em}
  .brand .cube{
    width:26px;height:26px;flex:none;border-radius:6px;
    background:linear-gradient(145deg,var(--green-bright),var(--green-deep));
    box-shadow:0 0 18px var(--glow);
    position:relative;
  }
  .brand .cube::after{
    content:"";position:absolute;inset:6px;border-radius:2px;
    background:rgba(7,11,9,0.55);
  }
  .brand span{font-size:16px}
  .nav-right{display:flex;align-items:center;gap:10px}
  .nav-social{display:flex;gap:6px}
  .icon-btn{
    width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
    border:1px solid var(--border);background:rgba(255,255,255,0.02);
    color:var(--muted);transition:.25s var(--ease);
  }
  .icon-btn:hover{color:var(--green);border-color:var(--border-strong);background:rgba(78,231,135,0.06);transform:translateY(-2px)}
  .icon-btn svg{width:18px;height:18px}
  .nav-cta{
    padding:9px 18px;border-radius:10px;font-weight:700;font-size:14px;
    background:var(--green);color:#052012;
    box-shadow:0 6px 20px -6px var(--glow);
    transition:.25s var(--ease);
  }
  .nav-cta:hover{background:var(--green-bright);transform:translateY(-2px)}
  @media(max-width:640px){.nav-cta{display:none}}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;min-height:100svh;
    display:flex;flex-direction:column;justify-content:center;
    padding:120px 0 80px;overflow:hidden;
  }
  .hero-bg{
    position:absolute;inset:-6% 0;z-index:0;
    background-image:url("background.jpg");
    background-size:cover;background-position:center;
    will-change:transform;
  }
  .hero-bg::after{
    content:"";position:absolute;inset:0;
    background:
      linear-gradient(180deg, rgba(7,11,9,0.55) 0%, rgba(7,11,9,0.35) 35%, rgba(7,11,9,0.82) 78%, var(--bg) 100%),
      radial-gradient(70% 60% at 50% 40%, transparent 40%, rgba(7,11,9,0.5) 100%);
  }
  .hero .wrap{width:100%}
  .hero-inner{max-width:760px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    font-family:"JetBrains Mono",monospace;font-size:12.5px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--green);
    padding:7px 14px;border-radius:100px;
    border:1px solid var(--border-strong);background:rgba(78,231,135,0.06);
    backdrop-filter:blur(6px);
  }
  .pulse{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 var(--glow);animation:pulse 2.4s infinite}
  @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(78,231,135,0.5)}70%{box-shadow:0 0 0 9px rgba(78,231,135,0)}100%{box-shadow:0 0 0 0 rgba(78,231,135,0)}}

  .hero h1{
    font-weight:900;line-height:1.04;letter-spacing:-0.01em;
    font-size:clamp(44px,8.5vw,88px);
    margin:22px 0 18px;
    text-shadow:0 4px 40px rgba(0,0,0,0.5);
  }
  .hero h1 .accent{
    background:linear-gradient(180deg,var(--green-bright),var(--green));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero p.lead{
    font-size:clamp(16px,2.1vw,20px);color:#d3e2d8;max-width:560px;
    text-shadow:0 2px 20px rgba(0,0,0,0.6);
  }
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 34px}
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13.5px;font-weight:500;
    padding:8px 15px;border-radius:100px;
    background:var(--glass);border:1px solid var(--border);
    backdrop-filter:blur(10px);
  }
  .badge b{color:var(--green);font-weight:700}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px}
  .btn{
    display:inline-flex;align-items:center;gap:10px;
    padding:14px 26px;border-radius:12px;font-weight:700;font-size:15.5px;
    transition:.25s var(--ease);cursor:pointer;border:1px solid transparent;
  }
  .btn-primary{background:var(--green);color:#052012;box-shadow:0 10px 30px -8px var(--glow)}
  .btn-primary:hover{background:var(--green-bright);transform:translateY(-3px);box-shadow:0 16px 40px -10px var(--glow)}
  .btn-ghost{background:var(--glass);border-color:var(--border-strong);color:var(--text);backdrop-filter:blur(10px)}
  .btn-ghost:hover{background:rgba(78,231,135,0.08);transform:translateY(-3px)}
  .btn svg{width:18px;height:18px}

  .scroll-cue{
    position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
    display:flex;flex-direction:column;align-items:center;gap:8px;
    color:var(--muted);font-size:11px;letter-spacing:.2em;font-family:"JetBrains Mono",monospace;
    z-index:1;
  }
  .scroll-cue .line{width:1px;height:34px;background:linear-gradient(var(--green),transparent);animation:drop 2s infinite}
  @keyframes drop{0%{opacity:0;transform:scaleY(0);transform-origin:top}40%{opacity:1}100%{opacity:0;transform:scaleY(1);transform-origin:bottom}}

  /* ---------- SECTION SHELL ---------- */
  .section{padding:clamp(72px,10vw,120px) 0;position:relative}
  .sec-head{max-width:620px;margin-bottom:52px}
  .sec-label{
    font-family:"JetBrains Mono",monospace;font-size:12.5px;letter-spacing:.18em;
    color:var(--green);text-transform:uppercase;display:block;margin-bottom:14px;
  }
  .sec-head h2{font-size:clamp(28px,4.4vw,42px);font-weight:900;line-height:1.15;letter-spacing:-0.01em}
  .sec-head p{margin-top:14px;color:var(--muted);font-size:16px}

  /* ---------- FEATURES ---------- */
  .feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
  @media(max-width:820px){.feat-grid{grid-template-columns:1fr}}
  .card{
    background:var(--glass);border:1px solid var(--border);border-radius:18px;
    padding:30px 28px;backdrop-filter:blur(14px);
    transition:.35s var(--ease);position:relative;overflow:hidden;
  }
  .card::before{
    content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
    background:linear-gradient(140deg,var(--border-strong),transparent 45%);
    -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
    -webkit-mask-composite:xor;mask-composite:exclude;
    opacity:0;transition:opacity .35s;
  }
  .card:hover{transform:translateY(-6px);border-color:var(--border-strong);background:rgba(20,32,25,0.6)}
  .card:hover::before{opacity:1}
  .card .ico{
    width:52px;height:52px;border-radius:13px;display:grid;place-items:center;
    background:linear-gradient(150deg,rgba(78,231,135,0.16),rgba(78,231,135,0.03));
    border:1px solid var(--border-strong);margin-bottom:20px;color:var(--green);
  }
  .card .ico svg{width:26px;height:26px}
  .card h3{font-size:19px;font-weight:700;margin-bottom:10px}
  .card p{color:var(--muted);font-size:14.5px}
  .card p b{color:var(--green-bright);font-weight:600}

  .verline{display:flex;align-items:center;gap:12px;margin-top:20px;font-family:"JetBrains Mono",monospace;font-size:13px}
  .verline .from{color:var(--muted)}
  .verline .track{flex:1;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--green-deep),var(--green-bright));position:relative}
  .verline .track::after{content:"";position:absolute;right:-3px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:var(--green-bright);box-shadow:0 0 10px var(--glow)}
  .verline .to{color:var(--green);font-weight:600}

  /* ---------- CONNECT CONSOLE (signature) ---------- */
  .console{
    background:linear-gradient(180deg,rgba(9,16,12,0.86),rgba(7,12,9,0.9));
    border:1px solid var(--border-strong);border-radius:20px;overflow:hidden;
    box-shadow:0 40px 80px -30px rgba(0,0,0,0.7),0 0 0 1px rgba(78,231,135,0.04);
    backdrop-filter:blur(18px);
  }
  .console-top{
    display:flex;align-items:center;gap:14px;
    padding:14px 20px;border-bottom:1px solid var(--border);
    background:rgba(78,231,135,0.03);
  }
  .dots{display:flex;gap:7px}
  .dots i{width:11px;height:11px;border-radius:50%;background:#25342b;display:block}
  .dots i:first-child{background:#ff5f57}.dots i:nth-child(2){background:#febc2e}.dots i:nth-child(3){background:var(--green)}
  .console-title{font-family:"JetBrains Mono",monospace;font-size:12.5px;color:var(--muted);letter-spacing:.04em}
  .console-status{margin-left:auto;display:flex;align-items:center;gap:8px;font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--green)}
  .console-body{padding:clamp(24px,4vw,40px);display:grid;grid-template-columns:1fr 1fr;gap:16px}
  @media(max-width:720px){.console-body{grid-template-columns:1fr}}

  .addr{
    background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:14px;
    padding:22px;transition:.3s var(--ease);
  }
  .addr:hover{border-color:var(--border-strong)}
  .addr-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
  .addr-head .tag{font-size:13px;font-weight:700;letter-spacing:.03em}
  .addr-head .platform{
    font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--green);
    padding:3px 9px;border-radius:6px;border:1px solid var(--border-strong);background:rgba(78,231,135,0.05);
  }
  .field{margin-bottom:12px}
  .field:last-child{margin-bottom:0}
  .field label{display:block;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);margin-bottom:6px;font-family:"JetBrains Mono",monospace}
  .copy-row{
    display:flex;align-items:center;gap:10px;
    background:rgba(0,0,0,0.35);border:1px solid var(--border);border-radius:10px;
    padding:11px 12px 11px 15px;
  }
  .copy-row .val{font-family:"JetBrains Mono",monospace;font-size:clamp(14px,3.4vw,17px);font-weight:600;color:var(--green-bright);flex:1;overflow-x:auto;white-space:nowrap;letter-spacing:.01em}
  .copy-btn{
    flex:none;display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:700;font-family:"Zen Kaku Gothic New",sans-serif;
    padding:7px 12px;border-radius:8px;cursor:pointer;
    background:rgba(78,231,135,0.1);border:1px solid var(--border-strong);color:var(--green);
    transition:.2s var(--ease);
  }
  .copy-btn:hover{background:var(--green);color:#052012}
  .copy-btn svg{width:14px;height:14px}
  .copy-btn.copied{background:var(--green);color:#052012}
  .addr-note{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:12.5px;color:var(--muted);font-family:"JetBrains Mono",monospace,"Zen Kaku Gothic New",sans-serif}
  .addr-note svg{width:15px;height:15px;flex:none;color:var(--green)}

  /* ---------- JOIN GUIDE ---------- */
  .tabs{display:inline-flex;gap:6px;padding:6px;border-radius:14px;background:var(--glass);border:1px solid var(--border);margin-bottom:34px;backdrop-filter:blur(10px)}
  .tab{
    padding:10px 22px;border-radius:9px;font-weight:700;font-size:14.5px;cursor:pointer;
    color:var(--muted);transition:.25s var(--ease);border:none;background:transparent;font-family:inherit;
    display:inline-flex;align-items:center;gap:8px;
  }
  .tab.active{background:var(--green);color:#052012;box-shadow:0 6px 18px -8px var(--glow)}
  .tab svg{width:16px;height:16px}

  .steps{display:none}
  .steps.active{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;animation:fadeUp .5s var(--ease)}
  @media(max-width:720px){.steps.active{grid-template-columns:1fr}}
  @keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
  .step{
    background:var(--glass);border:1px solid var(--border);border-radius:16px;
    padding:24px;backdrop-filter:blur(12px);position:relative;transition:.3s var(--ease);
  }
  .step:hover{border-color:var(--border-strong);transform:translateY(-4px)}
  .step .num{
    font-family:"JetBrains Mono",monospace;font-size:13px;font-weight:700;color:#052012;
    width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
    background:linear-gradient(150deg,var(--green-bright),var(--green));margin-bottom:16px;
    box-shadow:0 6px 16px -6px var(--glow);
  }
  .step h4{font-size:16px;font-weight:700;margin-bottom:8px}
  .step p{color:var(--muted);font-size:14px}
  .step code{
    font-family:"JetBrains Mono",monospace;font-size:13.5px;color:var(--green-bright);
    background:rgba(0,0,0,0.4);border:1px solid var(--border);border-radius:6px;padding:2px 8px;
    display:inline-block;margin-top:4px;
  }

  /* ---------- SNS / FOOTER ---------- */
  .sns-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  @media(max-width:640px){.sns-wrap{grid-template-columns:1fr}}
  .sns-card{
    display:flex;align-items:center;gap:18px;
    background:var(--glass);border:1px solid var(--border);border-radius:18px;
    padding:24px 26px;backdrop-filter:blur(12px);transition:.3s var(--ease);
  }
  .sns-card:hover{transform:translateY(-5px);border-color:var(--border-strong);background:rgba(20,32,25,0.55)}
  .sns-card .badge-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;flex:none;border:1px solid var(--border-strong)}
  .sns-card .x-bg{background:rgba(255,255,255,0.04)}
  .sns-card .m-bg{background:linear-gradient(150deg,rgba(255,71,133,0.18),rgba(255,71,133,0.04))}
  .sns-card .badge-ico svg{width:26px;height:26px}
  .sns-card .txt{flex:1;min-width:0}
  .sns-card .txt .t{font-weight:700;font-size:16px}
  .sns-card .txt .s{color:var(--muted);font-size:13.5px;font-family:"JetBrains Mono",monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .sns-card .arrow{color:var(--muted);transition:.3s var(--ease)}
  .sns-card:hover .arrow{color:var(--green);transform:translate(3px,-3px)}

  footer{border-top:1px solid var(--border);margin-top:40px;padding:40px 0 60px;text-align:center}
  footer .fbrand{display:inline-flex;align-items:center;gap:10px;font-weight:700;margin-bottom:14px}
  footer .fbrand .cube{width:22px;height:22px;border-radius:5px;background:linear-gradient(145deg,var(--green-bright),var(--green-deep));box-shadow:0 0 14px var(--glow)}
  footer p{color:var(--muted-2);font-size:13px;font-family:"JetBrains Mono",monospace}

  /* ---------- TOAST ---------- */
  .toast{
    position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);
    background:var(--green);color:#052012;font-weight:700;font-size:14px;
    padding:13px 22px;border-radius:12px;box-shadow:0 16px 40px -12px var(--glow);
    display:flex;align-items:center;gap:9px;z-index:100;
    opacity:0;pointer-events:none;transition:.35s var(--ease);
  }
  .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
  .toast svg{width:18px;height:18px}

  /* ---------- reveal ---------- */
  .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
  .reveal.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    .pulse,.scroll-cue .line{animation:none}
  }