body {
  font-family: "Open Sans", sans-serif;
  color: #272829;
}

a {
  color: #149ddd;
}

a:hover {
  color: #37b3ed;
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Raleway", sans-serif;
}
/* 
.circle {
  position: absolute;
  top: 0;
  left: 0;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.6;
  animation: change 1s ease-in-out infinite;
}

@keyframes change {
  0% {
    background-color: #845ec2;
  }
  25% {
    background-color: #d65db1;
  }
  50% {
    background-color: #ff6f91;
  }
  75% {
    background-color: #ff9671;
  }
  100% {
    background-color: #ffc75f;
  }
} */

/* top btn */
.back-to-top {
  position: fixed;
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50px;
  right: 15px;
  bottom: 15px;
  background: #149ddd;
  color: #fff;
  transition: display 0.5s ease-in-out;
  z-index: 99999;
}

.back-to-top i {
  font-size: 24px;
  position: absolute;
  top: 7px;
  left: 8px;
}

.back-to-top:hover {
  color: #fff;
  background: #2eafec;
  transition: background 0.2s ease-in-out;
}

/* header */
#header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 300px;
  transition: all ease-in-out 0.5s;
  z-index: 9997;
  transition: all 0.5s;
  padding: 0 15px;
  background: #040b14;
  overflow-y: auto;
}

#header .profile img {
  margin: 15px auto;
  display: block;
  width: 120px;
  border: 8px solid #2c2f3f;
}

#header .profile h1 {
  font-size: 24px;
  margin: 0;
  padding: 0;
  font-weight: 600;
  -moz-text-align-last: center;
  text-align-last: center;
  font-family: "Poppins", sans-serif;
}

#header .profile h1 a,
#header .profile h1 a:hover {
  color: #fff;
  text-decoration: none;
}

#header .profile .social-links a {
  font-size: 18px;
  display: inline-block;
  background: #212431;
  color: #fff;
  line-height: 1;
  padding: 8px 0;
  margin-right: 4px;
  border-radius: 50%;
  text-align: center;
  width: 36px;
  height: 36px;
  transition: 0.3s;
}

#header .profile .social-links a:hover {
  background: #149ddd;
  color: #fff;
  text-decoration: none;
}

#main {
  margin-left: 300px;
}

@media (max-width: 1199px) {
  #header {
    left: -300px;
  }
  #main {
    margin-left: 0;
  }
}

/* nav menu */
.nav-menu {
  padding-top: 30px;
}

.nav-menu * {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu > ul > li {
  position: relative;
  white-space: nowrap;
}

.nav-menu a {
  display: flex;
  align-items: center;
  color: #a8a9b4;
  padding: 12px 15px;
  margin-bottom: 8px;
  transition: 0.3s;
  font-size: 15px;
}

.nav-menu a i {
  font-size: 24px;
  padding-right: 8px;
  color: #6f7180;
}

.nav-menu a:hover,
.nav-menu .active > a,
.nav-menu li:hover > a {
  text-decoration: none;
  color: #fff;
}

.nav-menu a:hover i,
.nav-menu .active > a i,
.nav-menu li:hover > a i {
  color: #149ddd;
}

.mobile-nav-toggle {
  position: fixed;
  right: 15px;
  top: 15px;
  z-index: 9998;
  border: 0;
  background: none;
  font-size: 24px;
  transition: all 0.4s;
  outline: none !important;
  line-height: 1;
  cursor: pointer;
  text-align: right;
}

.mobile-nav-toggle i {
  color: #149ddd;
}

.mobile-nav-active {
  overflow: hidden;
}

.mobile-nav-active #header {
  left: 0;
}

.mobile-nav-active .mobile-nav-toggle i {
  color: #fff;
}

/* hero section */

#hero {
  background-color: red;
  width: 100%;
  height: 100vh;
  background: url("../images/hero-bg.jpg") top center;
  background-size: cover;
}

#hero .typing-txt {
  display: none;
}

#hero .typing-txt ul {
  list-style: none;
}

#hero:before {
  content: "";
  background: rgba(5, 13, 24, 0.3);
  position: absolute;
  bottom: 0;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1;
}

#hero .hero-container {
  position: relative;
  z-index: 2;
  min-width: 300px;
}

#hero h1 {
  margin: 0 0 10px 0;
  font-size: 64px;
  font-weight: 700;
  line-height: 56px;
  color: #fff;
}

#hero p {
  display: table-cell;
  vertical-align: middle;
  color: #fff;
  margin-bottom: 50px;
  font-size: 26px;
  font-family: "Poppins", sans-serif;
  border-right: 0.1em solid #149ddd;
  animation: cursor 0.5s ease infinite;
}

#hero p span {
  color: #fff;
  padding-bottom: 4px;
  letter-spacing: 1px;
  border-bottom: 3px solid #149ddd;
}

@keyframes cursor {
  50% {
    border-color: transparent;
  }
}

@media (min-width: 1024px) {
  #hero {
    background-attachment: fixed;
  }
}

@media (max-width: 768px) {
  #hero h1 {
    font-size: 28px;
    line-height: 36px;
  }
  #hero h2 {
    font-size: 18px;
    line-height: 24px;
    margin-bottom: 30px;
  }
}

section {
  padding: 60px 0;
  overflow: hidden;
}

.section-bg {
  background: #f5f8fd;
}

.section-title {
  padding-bottom: 30px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: bold;
  margin-bottom: 20px;
  padding-bottom: 20px;
  position: relative;
  color: #173b6c;
}

.section-title h2::after {
  content: "";
  position: absolute;
  display: block;
  width: 50px;
  height: 3px;
  background: #149ddd;
  bottom: 0;
  left: 0;
}

.section-title p {
  margin-bottom: 0;
}

/* About */
.about .introduce {
  font-size: 2rem;
}

.about .flex-icon {
  display: flex;
  justify-content: space-around;
  margin-bottom: 5em;
}

.about .about-text {
  font-size: 2rem;
}

/* portfolio */
.portfolio .portfolio-item {
  margin-bottom: 30px;
}

.portfolio #portfolio-flters {
  padding: 0;
  margin: 0 auto 35px auto;
  list-style: none;
  text-align: center;
  background: #fff;
  border-radius: 50px;
  padding: 2px 15px;
}

.portfolio #portfolio-flters li {
  cursor: pointer;
  display: inline-block;
  padding: 10px 15px 8px 15px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  color: #272829;
  margin-bottom: 5px;
  transition: all 0.3s ease-in-out;
}

.portfolio #portfolio-flters li:last-child {
  margin-right: 0;
}

.portfolio .portfolio-wrap .portfolio-links {
  opacity: 1;
  left: 0;
  right: 0;
  bottom: -60px;
  z-index: 3;
  position: absolute;
  transition: all ease-in-out 0.3s;
  display: flex;
  justify-content: center;
}

.portfolio .portfolio-wrap .portfolio-links a {
  color: #fff;
  font-size: 28px;
  text-align: center;
  background: rgba(20, 157, 221, 0.75);
  transition: 0.3s;
  width: 50%;
}

.portfolio .portfolio-wrap .portfolio-links a:hover {
  background: rgba(20, 157, 221, 0.95);
}

.portfolio .portfolio-wrap .portfolio-links a + a {
  border-left: 1px solid #37b3ed;
}

.portfolio .portfolio-wrap:hover::before {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 1;
}

.portfolio .portfolio-wrap:hover .portfolio-links {
  opacity: 1;
  bottom: 0;
}