Cyber Grid

:root {
      --ink: #040506;
      --acid: #b8ff2e;
      --muted: rgba(255, 255, 255, 0.55);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      min-height: 100vh;
      background: var(--ink);
      font-family: "Segoe UI", system-ui, sans-serif;
      color: #fff;
      overflow-x: hidden;
    }

    .hero {
      position: relative;
      min-height: 100vh;
      display: grid;
      place-items: center;
      padding: 4rem 1.5rem;
      text-align: center;
      isolation: isolate;
    }

    .grid {
      position: absolute;
      inset: 0;
      z-index: -2;
      background-image:
        linear-gradient(rgba(184, 255, 46, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(184, 255, 46, 0.07) 1px, transparent 1px);
      background-size: 56px 56px;
      transform: perspective(600px) rotateX(58deg) translateY(-18%) scale(1.6);
      transform-origin: center top;
      mask-image: linear-gradient(to bottom, #000 10%, transparent 75%);
      animation: gridDrift 18s linear infinite;
    }

    @keyframes gridDrift {
      from { background-position: 0 0; }
      to { background-position: 0 56px; }
    }

    .glow {
      position: absolute;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(184, 255, 46, 0.22), transparent 65%);
      top: 35%;
      left: 50%;
      transform: translate(-50%, -50%);
      z-index: -1;
      filter: blur(10px);
      animation: breath 5s ease-in-out infinite;
    }

    @keyframes breath {
      0%, 100% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
      50% { opacity: 1; transform: translate(-50%, -50%) scale(1.12); }
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      padding: 0.4rem 0.9rem;
      border-radius: 999px;
      border: 1px solid rgba(184, 255, 46, 0.35);
      background: rgba(184, 255, 46, 0.08);
      color: var(--acid);
      font-size: 0.72rem;
      font-weight: 800;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      margin-bottom: 1.5rem;
      animation: fadeUp 0.8s ease both;
    }

    .badge::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--acid);
      box-shadow: 0 0 10px var(--acid);
      animation: blink 1.6s ease-in-out infinite;
    }

    @keyframes blink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.35; }
    }

    h1 {
      font-size: clamp(2.4rem, 8vw, 5rem);
      font-weight: 950;
      letter-spacing: -0.05em;
      line-height: 0.98;
      max-width: 14ch;
      margin: 0 auto 1.25rem;
      animation: fadeUp 0.9s 0.08s ease both;
    }

    h1 em {
      font-style: normal;
      background: linear-gradient(90deg, #fff 20%, var(--acid) 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      text-shadow: 0 0 60px rgba(184, 255, 46, 0.25);
    }

    .lead {
      color: var(--muted);
      font-size: clamp(1rem, 2.2vw, 1.2rem);
      max-width: 36ch;
      margin: 0 auto 2rem;
      line-height: 1.65;
      animation: fadeUp 0.9s 0.16s ease both;
    }

    .ctas {
      display: flex;
      flex-wrap: wrap;
      gap: 0.85rem;
      justify-content: center;
      animation: fadeUp 0.9s 0.24s ease both;
    }

    .ctas a {
      text-decoration: none;
      padding: 0.95rem 1.6rem;
      border-radius: 999px;
      font-weight: 800;
      font-size: 0.95rem;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .ctas a:hover { transform: translateY(-2px); }

    .primary {
      background: var(--acid);
      color: #06100a;
      box-shadow: 0 0 40px rgba(184, 255, 46, 0.35);
    }

    .secondary {
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
    }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(18px); }
      to { opacity: 1; transform: none; }
    }

    .particles span {
      position: absolute;
      width: 3px;
      height: 3px;
      border-radius: 50%;
      background: var(--acid);
      opacity: 0.4;
      z-index: -1;
      animation: float var(--d, 6s) ease-in-out infinite;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-24px); }
    }