/* global.css */
    :root {
      --bg: #0a0e17;
      --text: #e0f0ff;
      --accent: #00d4ff;
      --accent-glow: #00d4ff33;
      --node: #7b2fff;
    }
    body {
      margin: 0;
      font-family: 'Inter', sans-serif;
      background: var(--bg);
      color: var(--text);
      overflow-x: hidden;
    }
    header {
        height: 100vh;
        min-height: 700px;
        background: linear-gradient(rgba(10,14,23,0.8), rgba(10,14,23,0.9)),
                    url('/images/background_network.png') center/cover no-repeat;
        height: 100vh;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 0 5%;
    }
    .neural-bg {
      position: absolute;
      inset: 0;
      background: 
        radial-gradient(circle at 10% 20%, var(--node) 0%, transparent 20%),
        radial-gradient(circle at 80% 70%, var(--node) 0%, transparent 25%);
      opacity: 0.15;
      pointer-events: none;
    }
    .hero-content {
      max-width: 900px;
      z-index: 2;
    }
    h1 {
      font-family: 'JetBrains Mono', monospace;
      font-size: clamp(3.5rem, 9vw, 7rem);
      margin-bottom: 1rem;
      color: var(--accent);
      text-shadow: 0 0 30px var(--accent-glow);
      letter-spacing: -2px;
    }
    .subtitle {
      font-size: 1.6rem;
      opacity: 0.9;
      margin: 0.5rem 0;          /* small gap between lines */
      font-weight: 300;
      line-height: 1.35;
    }
    .code-snippet {
      background: rgba(0,212,255,0.08);
      border: 1px solid var(--accent);
      border-radius: 12px;
      padding: 1.5rem;
      font-family: 'JetBrains Mono', mon
                                         space;
      font-size: 1.1rem;
      max-width: 600px;
      margin: 0 auto 2rem;
      text-align: left;
    }
    .btn {
      background: var(--accent);
      color: #0a0e17;
      padding: 1rem 2.8rem;
      border-radius: 50px;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s;
      box-shadow: 0 0 20px var(--accent-glow);
    }
    .btn:hover { transform: translateY(-4px); box-shadow: 0 15px 40px var(--accent-glow); }