.about {
  position: fixed; 
  z-index: 10;
  bottom: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  transition: all 0.2s ease;
}
.about .bg_links {
  width: 40px;
  height: 40px;
  border-radius: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(0, 0, 0, 0.721);
  border-radius: 100%;
  backdrop-filter: blur(5px);
  position: absolute;
}
.about .logo {
  width: 40px;
  height: 40px;
  z-index: 9;
  opacity: 0.9;
  transition: all 1s 0.2s ease;
  color: var(--fifth-color);
  bottom: 0;
  right: 0;
}
.about .social {
  opacity: 0;
  right: 0;
  bottom: 0;
}
.about .social .icon {
  width: 100%;
  background-color: transparent;
  display: flex;
  justify-content: center;
  transition: all 0.2s ease, background-color 0.4s ease;
  opacity: 0;
  border-radius: 100%;
  color: var(--fifth-color);
}
.about:hover {
  width: 105px;
  height: 105px;
  transition: all 0.6s cubic-bezier(0.64, 0.01, 0.07, 1.65);
}
.about:hover .logo {
  opacity: 1;
  transition: all 0.6s ease;
}
.about:hover .social {
  opacity: 1;
}
.about:hover .social .icon {
  opacity: 0.9;
}
.about:hover .social:hover {
  background-size: 28px;
}
.about:hover .social:hover .icon {
  background-size: 65%;
  opacity: 1;
}
.about:hover .social.twitter {
  right: 0;
  bottom: calc(100% - 40px);
  transition: all 0.3s 0s cubic-bezier(0.64, 0.01, 0.07, 1.65);
}
.about:hover .social.instagram {
  bottom: 45%;
  right: 45%;
  transition: all 0.3s 0.15s cubic-bezier(0.64, 0.01, 0.07, 1.65);
}
.bg_links:hover {
  background-color: var(--primary-color);
}
.about:hover .social.facebook {
  bottom: 0;
  right: calc(100% - 40px);
  transition: all 0.3s 0.25s cubic-bezier(0.64, 0.01, 0.07, 1.65);
}


/* menu bar style */
nav{
  display: flex;
  justify-content: space-between;
  align-items:center;
  width: 100%;
  padding: 20px;
  position: sticky;
  top: 0;
  background: var(--fifth-color);
  z-index: 1000;
}
.offcanvas-body a{
  padding: 10px !important;
  display: block;
  color: var(--primary-color);
  transition: .5s;
}
.offcanvas-body li{
  padding: 10px;
}

.offcanvas-body li:hover{
  background-color: var(--primary-color);
}
.offcanvas-body li:hover a{
  color: var(--fifth-color);
  background-color: transparent;
}
.dropdown-item:hover{
  background-color: transparent !important;
}
.navicon{
  margin-right: 20px !important;
}

/* footer */
footer{
  background-color: #dad8d8ca !important;
  font-family: kanitthin, Arial, Helvetica, sans-serif;
}
footer a:hover {
  text-decoration: underline;
  color: #007bff;
}

footer i:hover {
  color: #007bff;
  transform: scale(1.1);
  transition: color 0.2s, transform 0.2s;
}


/* page loader */
.loading{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--primary-color);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.loader {
  width: 60px;
  aspect-ratio: 1;
  --c:no-repeat linear-gradient(#da9500 0 0);
  background: 
    var(--c) 0    0,
    var(--c) 0    100%, 
    var(--c) 50%  50%,   
    var(--c) 100% 0, 
    var(--c) 100% 100%;
  animation: l13 1s infinite alternate;
}

@keyframes l13 {
 0%,10%   {background-size:20% 100%}
 50%      {background-size:20%  20%}
 90%,100% {background-size:100% 20%}
}
.loading.active{
  display: none;
}