.chat-launcher {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 190;
    background: #22C55E;
    color: #1a180f;
    border: none;
    padding: 0.75rem 1.25rem;
    font: 700 0.95rem/1.2 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: 0.02em;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transition: background 0.2s;
}
.chat-launcher:hover { background: #4ADE80; }
.chat-launcher:disabled { cursor: default; opacity: 0.85; }
.chat-launcher:focus-visible { outline: 2px solid #f5f1e8; outline-offset: 3px; }