:root {
    /* Techy palette tuned to logo (teal / warm orange / deep navy) */
    --ink: 0 0% 100%;        /* primary text */
    --muted: 0 0% 85%;       /* secondary text */
    --teal: 188 78% 42%;     /* neon‑teal */
    --amber: 35 95% 55%;     /* neon‑amber */
    --navy: 220 50% 10%;     /* deep navy */
    --navy-2: 222 45% 18%;   /* softer navy */
    --grid: 220 40% 25%;     /* grid lines */
    --shadow: 0 0 0;         /* keep for quick tuning */
  }
  * { box-sizing: border-box; }
  html, body { height: 100%; margin: 0; }
  body {
    font-family: Inter, system-ui, sans-serif;
    color: hsl(var(--ink));
    /* Layered, high-contrast, techy background */
    background:
      /* subtle corner glows */
      radial-gradient(40% 50% at 15% 20%, hsla(var(--teal)/.28), transparent 60%),
      radial-gradient(45% 55% at 85% 30%, hsla(var(--amber)/.28), transparent 65%),
      /* soft diagonal wash */
      linear-gradient(135deg, hsl(var(--navy)) 0%, hsl(var(--navy-2)) 60%, hsl(var(--navy)) 100%);

    /* fine grid overlay */
    background-blend-mode: screen, screen, normal;
    position: relative;
    display: grid;
    grid-template-rows: 1fr auto;
    min-height: 100vh;
    overflow: hidden;
  }

  /* Grid pattern via pseudo element for crispness */
  body::before {
    content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .35;
    background-image:
      linear-gradient(to right, hsla(var(--grid)/.25) 1px, transparent 1px),
      linear-gradient(to bottom, hsla(var(--grid)/.18) 1px, transparent 1px);
    background-size: 24px 24px;
  }

  main { display: grid; place-items: center; padding: 24px; text-align: center; }

  img.logo {
    width: clamp(110px,14vw,170px);
    height: auto;
    margin-bottom: 22px;
    filter: drop-shadow(0 10px 24px rgba(0,0,0,.45));
  }

  .title {
    position: relative;
    margin: 0;
    font-weight: 800;
    font-size: clamp(46px, 8vw, 96px);
    letter-spacing: -0.035em;
    line-height: 1.02;
    /* crisp, readable, subtle neon */
    text-shadow:
      0 2px 0 rgba(0,0,0,.35),
      0 10px 30px rgba(0,0,0,.45),
      0 0 22px hsla(var(--teal)/.28);
  }

  /* Tech brackets */
  .title::before, .title::after {
    content: ""; position: absolute; top: 50%; width: clamp(36px,6vw,64px); height: 1px;
    background: linear-gradient(90deg, hsla(var(--teal)/.0), hsla(var(--teal)/.9), hsla(var(--teal)/.0));
    transform: translateY(-50%);
  }
  .title::before { left: min(-10vw, -80px); }
  .title::after  { right: min(-10vw, -80px); }

  .subtitle {
    margin-top: 14px;
    font-weight: 600;
    font-size: clamp(18px, 2.4vw, 26px);
    color: hsl(var(--muted));
    text-shadow: 0 2px 8px rgba(0,0,0,.45);
  }

  /* Hairline accent under subtitle */
  .rule {
    margin: 18px auto 0; width: min(260px, 50vw); height: 1px;
    background: linear-gradient(90deg, hsla(var(--amber)/.0), hsla(var(--amber)/.8), hsla(var(--teal)/.8), hsla(var(--amber)/.0));
    border-radius: 999px;
  }

  footer { padding: 16px 0 24px; text-align: center; color: hsl(var(--muted)); font-size: 14px; }

  /* Accessibility: if user prefers high contrast, push text brighter */
  @media (prefers-contrast: more) {
    .subtitle, footer { color: #f1f5f9; }
    .title { text-shadow: 0 2px 0 rgba(0,0,0,.55), 0 0 30px rgba(0,0,0,.55); }
  }