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

    body {
      background-color: #111827;
      color: white;
      font-family: 'Courier New', Courier, monospace;
      display: grid;
      place-items: center;
      height: 100svh;          /* svh = mobile-safe (évite la barre d'adresse) */
      text-align: center;
      padding: 1rem;
    }

    fieldset {
      border: 1px solid #9ca3af;
      padding: clamp(1rem, 5%, 2rem) clamp(1.5rem, 8%, 3rem);
      width: 100%;
      max-width: 520px;
    }

    legend {
      padding: 0 0.5rem;
    }

    ul {
      list-style: none;
      text-align: left;
      margin-top: 0.5rem;
    }

    li {
      padding: 3px 6px;
      cursor: pointer;
    }

    li.selected {
      background: #e5e7eb;
      color: #111827;
    }

    #status {
      margin-top: 1.5rem;
      font-size: clamp(0.75rem, 2.5vw, 0.9rem);
      color: #d1d5db;
    }

    #status.launched { color: #4ade80; }

    #hints {
      margin-top: 0.25rem;
      font-size: clamp(0.65rem, 2vw, 0.75rem);
      color: #6b7280;
    }