/* ============================================================
     FLOATING SUBMIT BUTTON
     ============================================================ */
  .fab-submit{
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 50;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 22px 14px 18px;
    background: var(--ink);
    color: var(--pitch) !important;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: -0.005em;
    text-decoration: none !important;
    border-radius: 999px;
    box-shadow:
      0 0 0 1px rgba(239,234,224,.08),
      0 14px 36px -10px rgba(0,0,0,.6),
      0 4px 12px -4px rgba(0,0,0,.45);
    transition: transform var(--dur-base) var(--ease-out-soft),
                background var(--dur-base) var(--ease-out-soft),
                box-shadow var(--dur-base) var(--ease-out-soft);
  }
  .fab-submit::before{
    content: "";
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--signal);
    box-shadow: 0 0 12px var(--signal);
    flex: 0 0 auto;
  }
  .fab-submit:hover{
    transform: translateY(-2px);
    background: #fff;
    box-shadow:
      0 0 0 1px rgba(239,234,224,.14),
      0 20px 44px -10px rgba(0,0,0,.7),
      0 6px 18px -4px rgba(0,0,0,.55);
  }
  .fab-submit:active{ transform: translateY(0); }
  .fab-submit .arrow{
    transition: transform var(--dur-base) var(--ease-out-soft);
  }
  .fab-submit:hover .arrow{ transform: translateX(3px); }

  @media (max-width: 720px){
    .fab-submit{ bottom: 16px; right: 16px; padding: 12px 18px 12px 15px; font-size: 13px; gap: 10px; }
  }