@import url("https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");
body {
  font-family: "Poppins", sans-serif;
}
html {
  scrollbar-color: var(--second-color) var(--other-color);
}
:root {
  --main-color: #020617;
  --other-color: #0f172a;
  --second-color: #3b82f6;
  --third-color: #666;
  --box-color: #1e293b;
  --server-color: #1e293d;
  --white-50-color: rgba(255, 255, 255, 0.5);
  --text-color: #fff;
}
body.light-mode {
  --main-color: #f8fafc;
  --other-color: #e2e8f0;
  --second-color: #2563eb;
  --third-color: #444;
  --box-color: #e2e8f0;
  --server-color: #1e293b4d;
  --text-color: #020617;
  --white-50-color: rgba(0,0,0,0.5);
}
body {
  color: var(--text-color);
}
::-webkit-scrollbar{
  width: 10px;
}
::-webkit-scrollbar-track{
  background-color: var(--other-color);
}
::-webkit-scrollbar-thumb{
  background-color: var(--second-color);
  cursor: pointer;
  transition: 0.5s;
}
::-webkit-scrollbar-thumb:hover{
  background-color: #2563eb;
}
.reveul{
  opacity: 0;
  transform: translateX(-200px);
  transition: 1s;
}
.reveul.active{
  opacity: 1;
  transform: translateX(0);
}
.reveul-img{
  opacity: 0;
  transform: translateX(200px);
  transition: 1.3s;
}
.reveul-img.active{
  opacity: 1;
  transform: translateX(0);
}
a{
  text-decoration: none;
}
.dark{
  color: white;
  font-size: 20px;
  cursor: pointer;
}
.fa-sun{
  color: #000;
}
.hero{
  background-color: var(--main-color);
}
.hero .header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 5;
  background-color: var(--main-color);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.hero .header .navbar-brand{
  color: var(--text-color);
}
.hero .header .navbar .navbar-toggler,
.hero .header .navbar .navbar-toggler:focus,
.hero .header .navbar .navbar-toggler:active,
.hero .header .navbar .navbar-toggler[aria-expanded="true"] {
  border: none !important;
  box-shadow: none !important;
  outline: none !important;
}
.hero .header .navbar .navbar-toggler span .fa-bars {
  color: var(--text-color);
}
.hero .header .navbar .navbar-collapse {
  transition: max-height 0.5s ease-in-out, opacity 0.5s ease-in-out;
  max-height: 0;
}
.hero .header .navbar .navbar-collapse.show {
  max-height: 500px;
}
.hero .header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link {
  color: var(--text-color) !important;
  transition: 0.3s;
}
.hero .header .navbar .navbar-collapse .navbar-nav .nav-item .nav-link:hover {
  color:var(--second-color) !important;
}
.hero .landing {
  height: 550px;
  z-index: 3;
  overflow: hidden;
}
@media (max-width: 767px) {
  .hero .landing{
    padding-top: 130px;
  } 
}
.hero .landing .section{
  width: 60%;
}
.hero .landing .section h1{
  font-size: 50px;
  font-weight: 700;
  position: relative;
  display: inline-block;
  white-space: nowrap;
  z-index: 1;
}
.hero .landing .section h1::after{
  content: "";
  position: absolute;
  right: -25px;
  bottom: 17px;
  width: 150px;
  height: 2px;
  box-shadow: 5px 5px 5px var(--second-color);
  border-radius: 2px;
  z-index: 0;
}
.hero .landing .section h1::before{
  content: "";
  position: absolute;
  right: -12px;
  bottom: 10px;
  width: 6px;
  height: 6px;
  background-color: #fff;
  border-radius: 50%;
  box-shadow: 0 0 8px #fff;
  animation: glow 1.5s infinite alternate;
  z-index: 2;
}
@media (max-width: 991px){
  .hero .landing .section h1{
    white-space: wrap;
  }
  .hero .landing .section h1::after{
    width: 100px;
    bottom: 12px;
  }
  .hero .landing .section h1::before{
    bottom: 5px;
  }
}
@media (max-width: 767px){
  .hero .landing .section{
    width: 100%;
  }
}
@media (max-width: 480px){
  .hero .landing .section h1::after{
    left: 50px;
  }
  .hero .landing .section h1::before{
    left: 120px;
  }
}
.hero .landing .section h3{
  font-size: 24px;
  font-weight: 700;
  position: relative;
  margin-bottom: 32px;
}
.hero .landing .section h3::after{
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 200px;
  height: 3px;
  background-color: var(--second-color);
  border-radius: 3px;
}
.hero .landing .section h3 > span{
  color: var(--second-color);
}
.hero .landing .section p{
  font-size: 18px;
  color: var(--white-50-color);
}
@media (max-width: 991px){
  .hero .landing .section h1{
    font-size: 32px;
  }
  .hero .landing .section h3{
    font-size: 20px;
  }
  .hero .landing .section p{
    font-size: 16px;
  }
}
.hero .landing .section .social > a > i{
  color: var(--second-color);
  width: 30px;
  height: 30px;
  border: 2px solid var(--second-color);
  border-radius: 6px;
  box-shadow: 1px 1px 5px var(--second-color);
  transition: 0.3s;
} 
.hero .landing .section .social > a > i:hover{
  color: var(--text-color); 
  border-color: var(--second-color); 
  background: var(--second-color); 
  box-shadow: 0 0 15px var(--second-color); 
  transform: scale(1.2) rotate(5deg);
}
.main-btn{
  color: var(--text-color);
  width: 180px;
  margin-right: 5px;
  transition: 0.3s;
  position: relative;
}
.github{
  width: 120px;
}
.main-btn:hover {
  background-color: #3b82f6; 
  color: #fff; 
  box-shadow: 0 5px 15px rgba(59,130,246,0.5); 
  transform: translateY(-3px);
}
.first{
  background-color: #1e40af;
  color: #fff;
}
.second{
  background-color: #0f172a;
  color: #fff;
  border: 1px solid var(--text-color);
}
.hero .landing .image{
  position: relative;
  width: 40%;
}
.hero .landing .image::before {
  content: "";
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -40%);
  width: 450px;        
  height: 450px;
  background: radial-gradient(circle, var(--second-color) 0%, var(--second-color) 40%, transparent 80%);
  filter: blur(100px); 
  opacity: 0.7;        
  z-index: -1; 
}
.hero .landing .image.active::before{
  background: radial-gradient(
    circle,
    rgba(59,130,246,0.4) 0%,
    rgba(59,130,246,0.2) 40%,
    transparent 80%
  );
  filter: blur(80px);
  opacity: 0.4;         
}
.hero .landing .image img{
  max-width: 100%;
  height: auto;
  position: absolute;
  bottom: -300px;
  left: 50px;
}
@media (max-width: 991px) { 
  .hero .landing .image::before {
    width: 350px;      
    height: 350px;
    filter: blur(50px);
    opacity: 0.5;
  }
  .hero .landing .image img {
    position: relative; 
    bottom: auto;
    left: auto;
    margin: 0 auto;
    display: block;
    max-width: 100%; 
    height: auto;
  }
}
@media (max-width: 767px){
  .hero .landing .image{
    margin-top: 30px;
  }
}
.about{
  background-color: var(--other-color);
}
.about .container img{
  width: 200px;
  height: auto;
  max-width: 100%;
}
@media (max-width: 991px){
  .about .container img{
    width: 215px;
    height: 235px;
  }
}
.about .container .about-me h2{
  border-bottom: 1px solid #cccccc6e;
  color: var(--text-color);
}
.about .container .about-me p{
  line-height: 1.9;
  color: var(--third-color) ;
}
.special{
  position: relative;
  z-index: 1;
}
.special p{
  width: 180px;
  background-color: var(--main-color);
  z-index: 2;
  margin: auto;
}
.special::before{
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  height: 1px;
  background-color: #cccccc6e;
  z-index: -1;
}
.skills {
  background-color: var(--main-color);
}
.skills .box{
  background-color: var(--box-color);
  color: var(--text-color);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 12px;
  padding: 15px;
  font-size: 20px;
  font-weight: 600;
  position: relative;
  cursor: pointer;
  transition: 0.3s;
}
.skills .box::after {
  content: "";
  position: absolute;
  bottom: 0;       
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 10px;
  background: #3b82f6; 
  filter: blur(15px);  
  opacity: 0.7;    
  border-radius: 50%;
  z-index: 1;
}
.skills .box:hover{
  transform: translateY(-8px);
  box-shadow: 0 10px 25px rgba(59,130,246,0.25);
}
.skills .box img{
  width: 50px;
}
.service{
  background-color: var(--other-color);
}
.service .special p{
  background-color: var(--other-color);
  width: 220px;
}
.service .box-info{
  background-color: var(--server-color);
  border: 1px solid transparent;
  padding: 15px;
  width: 100%;
  height: 100%;
  cursor: pointer;
  transition: 0.3s;
}
.service .box-info:hover{
  transform: translateY(-8px);
  border-color: #3b82f6;
  box-shadow: 0 15px 35px rgba(59,130,246,0.25);
}
.service .box-info .box{
  min-height: 80px;
  border-bottom: 1px solid #cccccc73;
}
.service .box-info .box img{
  width: 60px;
}
.service .box-info .box .info > span{
  font-size: 14px;
  color: var(--white-50-color);
}
.service .box-info .details{
  min-height: 100px;
  color: var(--white-50-color);
}
@media (max-width: 767px){
  .service .box-info .details{
    min-height: 50px;
  }
}
.projects{
  background-color: var(--main-color);
  position: relative;
}
.projects .special p{
  width: 220px;
}
@media (max-width: 767px){
  .projects .card-info{
    display: none;
  }
  .projects .card-info.active{
    display: block;
  }
}
.projects .arrow{
  display: none;
}
@media (max-width: 767px){
  .projects .arrow{
    display: block;
  }
  .projects .arrow i{
    color: goldenrod;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 35px;
    cursor: pointer;
  }
  .projects .arrow i.prev{
    left: 0;
  }
  .projects .arrow i.next{
    right: 0;
  }
}
.projects .card{
  background-color: var(--box-color);
  border: 1px solid transparent;
  width: 100%;
  height: 100%;
  cursor: pointer;
  transition: 0.3s;
}
.projects .card .card-title{
  color: var(--text-color);
}
.projects .card .card-text{
  color: var(--white-50-color);
}
.projects .card:hover{
  transform: translateY(-8px);
  border-color: #3b82f6;
  box-shadow: 0 15px 35px rgba(59,130,246,0.25);
}
.projects .card .main-btn{
  width: 110px;
  margin-right: 0;
}
.projects .card img{
  height: 200px;
  max-height: 100%;
}
.contact{
  background-color: var(--other-color);
}
.contact .special p{
  width: 220px;
  background-color: var(--other-color);
}
.contact input,
.contact textarea{
  border: 1px solid #374151;
  outline: none;
  background-color: #111827;
  color: #e5e7eb !important;
  transition: 0.3s;
}
.contact textarea{
  height: 120px;
  resize: none;
}
.contact input::placeholder,
.contact textarea::placeholder{
  color: #e5e7ebc0;
}
.contact input:focus,
.contact textarea:focus{
  outline: none;
  box-shadow: none;
  border-color: var(--second-color);
  background-color: #111827;
}
.error-message {
  color: #ff4d4f; 
  font-size: 14px;
  margin-top: 4px;
  display: block;
}
.footer{
  background-color: var(--main-color);
  border-top: 2px solid #cccccc60;
  color: #ccccccc7;
}
.footer span{
  color: var(--second-color);
}
@keyframes glow{
  0%{
    box-shadow: 0 0 4px #fff;
    opacity: 0.6;
  }
  50%{
    box-shadow: 0 0 12px #fff;
    opacity: 1;
  }
  100%{
    box-shadow: 0 0 4px #fff;
    opacity: 0.6;
  }
}