.btn-contact-1 {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #535886; /* Синий фон – символ надёжной связи */
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-contact-1:hover {
    background-color: #0056b3;
    transform: scale(1.05);
}

.btn-contact-1:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.5);
}