  :root {
      --red: #246BCE;
      --black: #111111;
      --panel: #1d1d1f;
      --white: #ffffff;
      --gray-100: #efefef;
      --gray-200: #d7d7d7;
      --gray-400: #b5b5b5;
      --gray-500: #777777;
      --gray-700: #424242;
      --gray-800: #292929;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      min-height: 100vh;
      padding: 28px 16px;
      background:
        radial-gradient(ellipse at 50% 0%, rgba(36,107,206,.12), transparent 45%),
        var(--black);
      color: var(--white);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      display: grid;
      place-items: center;
    }
    .app { width: min(100%, 760px); }
    .hero {
      background: var(--panel);
      border: 1px solid #303033;
      border-radius: 26px;
      padding: clamp(22px, 5vw, 38px);
      box-shadow: 0 24px 80px rgba(0,0,0,.32);
    }
    .topbar, .brand, .hero-cta, .footer, .status-line {
      display: flex; align-items: center; justify-content: space-between; gap: 14px;
    }
    .brand { justify-content: flex-start; gap: 12px; }
    .brand-mark {
      width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
      background: var(--red); color: white; font-size: 23px; font-weight: 800;
    }
    .brand-name { margin: 0; font-size: 20px; letter-spacing: .16em; }
    .edition {
      font-size: 11px; letter-spacing: .12em; color: #d6d6d6;
      border: 1px solid #4a4a4a; border-radius: 999px; padding: 8px 11px;
    }
    .rule { height: 1px; background: #414141; margin: 26px 0 30px; }
    .eyebrow { color: var(--red); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
    h1 { font-size: clamp(36px, 7vw, 58px); line-height: 1.02; letter-spacing: -.045em; margin: 16px 0 12px; }
    .intro { color: #b9b9b9; line-height: 1.65; margin: 0; max-width: 470px; }
    button { font: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
    .primary {
      width: 100%; margin-top: 28px; border: 0; border-radius: 14px; padding: 18px 20px;
      background: var(--red); color: white; display: flex; justify-content: space-between; align-items: center;
      font-weight: 800; letter-spacing: .04em; transition: transform .18s, background .18s;
    }
    .primary:hover { background: #347FE8; transform: translateY(-2px); }
    .primary:active, .tile:active { transform: scale(.98); }
    .primary .arrow { font-size: 22px; }
    .section-heading { margin: 30px 2px 14px; }
    .section-heading h2 { font-size: 20px; margin: 0 0 5px; }
    .section-heading p { color: #a5a5a5; margin: 0; font-size: 14px; }
    .grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
    .tile {
      min-height: 132px; padding: 16px; border: 2px solid transparent; border-radius: 16px;
      display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start;
      text-align: left; transition: transform .18s, border-color .18s, box-shadow .18s;
    }
    .tile:hover { transform: translateY(-3px); box-shadow: 0 12px 25px rgba(0,0,0,.18); }
    .tile[aria-pressed="true"] { border-color: currentColor; box-shadow: 0 0 0 2px rgba(255,255,255,.12); }
    .tile-icon { font-size: 25px; line-height: 1; }
    .tile-label { font-size: 13px; font-weight: 750; }
    .red { background: var(--red); color: white; }
    .white { background: var(--white); color: #171717; }
    .gray-light { background: var(--gray-200); color: #171717; }
    .gray-mid { background: var(--gray-400); color: #171717; }
    .gray-dark { background: var(--gray-800); color: white; }
    .gray-pale { background: var(--gray-100); color: #171717; }
    .gray { background: var(--gray-500); color: white; }
    .charcoal { background: var(--gray-700); color: white; }
    .footer {
      margin-top: 18px; padding: 14px 2px 0; color: #888; font-size: 11px; letter-spacing: .08em;
    }
    .status {
      margin-top: 16px; border: 1px solid #363638; border-radius: 14px; background: #202020; padding: 15px 16px;
    }
    .status-line { justify-content: flex-start; font-size: 13px; font-weight: 700; }
    .dot { width: 8px; height: 8px; background: var(--red); border-radius: 50%; flex: 0 0 auto; }
    #status-detail { color: #a5a5a5; font-size: 12px; margin: 7px 0 0 22px; }
    @media (max-width: 480px) {
      body { padding: 14px 10px; }
      .hero { border-radius: 20px; padding: 20px; }
      .grid { gap: 8px; }
      .tile { min-height: 108px; padding: 12px; border-radius: 13px; }
      .tile-label { font-size: 12px; }
      .edition { font-size: 9px; padding: 7px 8px; }
      .rule { margin: 22px 0 25px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
    }