*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  outline: none; border: none;
  text-transform:capitalize;
  transition: all .2s linear;
}
html{
  font-size: 62.5%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}
body{
  background: linear-gradient(135deg, #0a1429 0%, #16213e 50%, #0f172a 100%);
  font-family: 'Poppins', sans-serif;
  color: #a8edea;
}

*::selection{
  background: #9b59b6;
  color: #fff;
}

html{
  font-size: 62.5%;
  overflow-x: hidden;
}
html::-webkit-scrollbar{
  width: .8rem;
}
html::-webkit-scrollbar-track{
  background: rgba(155, 89, 182, 0.1);
}
html::-webkit-scrollbar-thumb{
  background: #9b59b6;
  border-radius: 10px;
}
html::-webkit-scrollbar-thumb:hover{
  background: #00d9ff;
}

/* navbar starts */
header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.7rem 10%;
  height: 6.5rem;
  background-color: rgba(10, 20, 41, 0.95);
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.3);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(155, 89, 182, 0.2);
}
section{
  min-height: 100vh;
  padding: 2rem 9%;
}
.heading{
  font-size: 3.5rem;
  color: #e0c3fc;
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 50%, #00d9ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: textGlow 3s ease-in-out infinite;
}

@keyframes textGlow {
  0%, 100% {
    filter: drop-shadow(0 0 5px rgba(155, 89, 182, 0.4));
  }
  50% {
    filter: drop-shadow(0 0 15px rgba(155, 89, 182, 0.8));
  }
}
.heading span{
  color: rgb(115, 3, 167);
}
header .logo{
  font-size: 1.9rem;
  font-weight: 800;
  text-decoration: none;
  color: #e0c3fc;
  transition: all 0.3s ease;
}
header .logo i {
  font-size: 3rem;
}
header .logo:hover {
  color: #00d9ff;
  text-shadow: 0 0 15px rgba(0, 217, 255, 0.8);
}
header .navbar ul{
  list-style: none;
  display: flex;
  justify-content: center;
  align-items: center;
}
header .navbar li{
  margin-left: 2.5rem;
}
header .navbar ul li a{
  font-size: 1.57rem;
  color: #a8edea;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.04rem;
  transition: all 0.3s ease;
}
header .navbar ul li a.active,
header .navbar ul li a:hover{
  color: #00d9ff;
  border-bottom: .2rem solid #00d9ff;
  padding: .5rem 0;
  text-shadow: 0 0 10px rgba(0, 217, 255, 0.6);
}
/* navbar ends */

/* hamburger icon starts*/
#menu{
  font-size: 3rem;
  cursor: pointer;
  color: #a8edea;
  display: none;
  transition: all 0.3s ease;
}
#menu:hover {
  color: #00d9ff;
  text-shadow: 0 0 10px rgba(0, 217, 255, 0.6);
}
@media(max-width:768px){
  #menu{
      display: block;
  }
  header .navbar{
    position: fixed;
    top: 6.5rem; right: -120%;
    width: 75%;
    height: 100%;
    text-align: left;
    align-items: flex-start;
    background: linear-gradient(135deg, #0a1429 0%, #16213e 50%, #0f172a 100%);
  }
  header .navbar ul{
    flex-flow: column;
    padding: 1rem;
  }
  header .navbar ul li{
    text-align: center;
    width: 100%;
    margin: 1rem 0;
    border-radius: .5rem;
    width: 26rem;
  }
  header .navbar ul li a{
    display: block;
    padding: 1rem;
    text-align: left;
    color: #a8edea;
    font-size: 2rem;
  }
  header .navbar ul li a.active,
  header .navbar ul li a:hover{
    padding: 1rem;
    color: #00d9ff;
    border-radius: .5rem;
    border-bottom: .5rem solid #00d9ff;
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.6);
  }
  .fa-times{
    transform: rotate(180deg);
  }
  header .navbar.nav-toggle{
    right: 0;
  }
}
/* hamburger icon ends */

/* experience section starts */
.experience {
  background: linear-gradient(135deg, #0a1429 0%, #16213e 50%, #0f172a 100%);
  min-height: auto;
  padding: 4rem 9%;
  position: relative;
  overflow: hidden;
}

.experience::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 20% 50%, rgba(155, 89, 182, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 80%, rgba(52, 152, 219, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.experience .heading {
  position: relative;
  z-index: 2;
}

.experience .heading span {
  color: #00d9ff;
}

/* Experience Timeline Container */
.exp-timeline {
  max-width: 900px;
  margin: 3rem auto;
  position: relative;
  z-index: 2;
}

/* Vertical timeline line */
.exp-timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: calc(100% - 4rem);
  background: linear-gradient(to bottom, #9b59b6, #3498db, #27ae60);
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.5);
}

/* Experience Item */
.exp-item {
  margin-bottom: 3rem;
  position: relative;
}

.exp-item:nth-child(odd) {
  text-align: right;
}

.exp-item:nth-child(odd) .exp-card {
  margin-right: 52%;
}

.exp-item:nth-child(even) .exp-card {
  margin-left: 52%;
}

/* Timeline Marker/Dot */
.exp-marker {
  position: absolute;
  width: 24px;
  height: 24px;
  left: 50%;
  top: 30px;
  transform: translateX(-50%);
  border-radius: 50%;
  border: 4px solid rgba(10, 20, 41, 0.8);
  z-index: 10;
  background: #0a1429;
}

.exp-marker.current {
  background: linear-gradient(135deg, #9b59b6, #e74c3c);
  box-shadow: 0 0 0 8px rgba(155, 89, 182, 0.4), 0 0 0 16px rgba(231, 76, 60, 0.2);
  animation: pulse 2s infinite;
  border-color: #e74c3c;
}

.exp-marker.postdoc {
  background: #9b59b6;
  box-shadow: 0 0 0 6px rgba(155, 89, 182, 0.3);
}

.exp-marker.visiting {
  background: #3498db;
  box-shadow: 0 0 0 6px rgba(52, 152, 219, 0.3);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 8px rgba(155, 89, 182, 0.2), 0 0 0 16px rgba(231, 76, 60, 0.1);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(155, 89, 182, 0.3), 0 0 0 24px rgba(231, 76, 60, 0);
  }
  100% {
    box-shadow: 0 0 0 8px rgba(155, 89, 182, 0.2), 0 0 0 16px rgba(231, 76, 60, 0.1);
  }
}

/* Experience Card */
.exp-card {
  background: rgba(155, 89, 182, 0.08);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.2);
  transition: all 0.3s ease;
  border-top: 5px solid;
  position: relative;
  border: 2px solid rgba(155, 89, 182, 0.2);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  animation: cardGlow 2s ease-in-out infinite;
}

@keyframes cardGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(155, 89, 182, 0.2);
  }
  50% {
    box-shadow: 0 0 40px rgba(155, 89, 182, 0.4);
  }
}

.exp-card:hover {
  box-shadow: 0 0 50px rgba(155, 89, 182, 0.6);
  transform: translateY(-8px);
  background: rgba(155, 89, 182, 0.15);
  border-color: rgba(155, 89, 182, 0.5);
}

.postdoc-card {
  border-top-color: #9b59b6;
}

.visiting-card {
  border-top-color: #3498db;
}

/* Card Header */
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

/* Experience Badge */
.exp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1.4rem;
  border-radius: 20px;
  font-size: 1.1rem;
  font-weight: 700;
  white-space: nowrap;
}

.postdoc-badge {
  background: rgba(155, 89, 182, 0.25);
  color: #9b59b6;
  border: 2px solid #9b59b6;
}

.visiting-badge {
  background: rgba(52, 152, 219, 0.25);
  color: #3498db;
  border: 2px solid #3498db;
}

/* Status Badge */
.exp-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 20px;
  font-size: 1rem;
  font-weight: 700;
}

.current-status {
  background: rgba(231, 76, 60, 0.25);
  color: #e74c3c;
}

.current-status i {
  animation: blink 1s infinite;
}

.past-status {
  background: rgba(39, 174, 96, 0.25);
  color: #27ae60;
}

/* Position Title */
.exp-position {
  font-size: 1.8rem;
  color: #e0c3fc;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

/* Details */
.exp-details {
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.exp-institution,
.exp-location,
.exp-duration {
  font-size: 1.2rem;
  color: #a8edea;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0;
}

.exp-institution i,
.exp-location i,
.exp-duration i {
  color: #9b59b6;
  font-size: 1.1rem;
  min-width: 1.2rem;
}

.exp-institution a {
  color: #00d9ff;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid rgba(0, 217, 255, 0.3);
  transition: all 0.2s ease;
}

.exp-institution a:hover {
  color: #a8edea;
  border-bottom-color: rgba(168, 237, 234, 0.6);
}

/* Description */
.exp-description {
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(155, 89, 182, 0.3);
}

.exp-description p {
  font-size: 1.1rem;
  color: #a8edea;
  line-height: 1.6;
  margin: 0;
  font-family: "Nunito", sans-serif;
  text-transform: none;
}

/* Status Badge */
.exp-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 20px;
  font-size: 1rem;
  font-weight: 700;
}

.current-status {
  background: rgba(231, 76, 60, 0.15);
  color: #e74c3c;
}

.current-status i {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.5;
  }
}

.past-status {
  background: rgba(39, 174, 96, 0.15);
  color: #27ae60;
}

/* Position Title */
.exp-position {
  font-size: 1.8rem;
  color: rgb(32, 32, 32);
  font-weight: 700;
  margin-bottom: 1.2rem;
}

/* Details */
.exp-details {
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.exp-institution,
.exp-location,
.exp-duration {
  font-size: 1.2rem;
  color: #555;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0;
}

.exp-institution i,
.exp-location i,
.exp-duration i {
  color: rgb(115, 3, 167);
  font-size: 1.1rem;
  min-width: 1.2rem;
}

.exp-institution a {
  color: #3498db;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.exp-institution a:hover {
  color: rgb(115, 3, 167);
  border-bottom-color: rgb(115, 3, 167);
}

/* Description */
.exp-description {
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.exp-description p {
  font-size: 1.1rem;
  color: #666;
  line-height: 1.6;
  margin: 0;
  font-family: "Nunito", sans-serif;
  text-transform: none;
}

/* More Button */
.exp-morebtn {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}

.exp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.2rem 2.5rem;
  border-radius: 50px;
  background: linear-gradient(135deg, #9b59b6, #e74c3c);
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: 0 6px 20px rgba(155, 89, 182, 0.4);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.exp-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(155, 89, 182, 0.5);
}

.exp-btn i {
  transition: transform 0.3s ease;
}

.exp-btn:hover i {
  transform: translateX(-5px);
}

/* Experience Responsive */
@media screen and (max-width: 768px) {
  .experience {
    padding: 2rem 5%;
  }

  .exp-timeline::before {
    left: 20px;
  }

  .exp-item {
    text-align: left !important;
  }

  .exp-item:nth-child(odd) .exp-card,
  .exp-item:nth-child(even) .exp-card {
    margin-left: 70px;
    margin-right: 0;
  }

  .exp-marker {
    left: 20px;
  }

  .exp-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .exp-badge {
    font-size: 1rem;
  }

  .exp-position {
    font-size: 1.5rem;
  }

  .exp-card {
    padding: 1.5rem;
  }
}

@media screen and (max-width: 600px) {
  .experience {
    padding: 1.5rem 4%;
  }

  .exp-timeline::before {
    left: 15px;
  }

  .exp-item:nth-child(odd) .exp-card,
  .exp-item:nth-child(even) .exp-card {
    margin-left: 60px;
  }

  .exp-marker {
    left: 15px;
    width: 20px;
    height: 20px;
  }

  .exp-badge {
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
  }

  .exp-position {
    font-size: 1.3rem;
  }

  .exp-details {
    gap: 0.6rem;
  }

  .exp-institution,
  .exp-location,
  .exp-duration {
    font-size: 1.1rem;
  }

  .exp-btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
  }

  .exp-card {
    padding: 1.2rem;
  }
}

/* experience section ends */


/* footer section starts */
.footer{
  min-height: auto;
  padding-top: 0;
  background: linear-gradient(135deg, #0a1429 0%, #16213e 50%, #0f172a 100%);
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 20% 50%, rgba(155, 89, 182, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.footer .box-container{
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.footer .box-container .box{
  flex: 1 1 25rem;
  margin: 2rem;
}
.footer .box-container .box h3{
  font-size: 2.5rem;
  color: #e0c3fc;
  padding-bottom: 1rem;
  font-weight: normal;
}
.footer .box-container .box p{
  font-size: 1.5rem;
  color: #a8edea;
  padding: .7rem 0;
  text-transform: none;
}
.footer .box-container .box p i{
  padding-right: 1rem;
  color: #00d9ff;
}
.footer .box-container .box a{
  font-size: 1.5rem;
  color: #a8edea;
  padding: .3rem 0;
  display: block;
  transition: all 0.3s ease;
}
.footer .box-container .box a:hover{
  color: #00d9ff;
  text-shadow: 0 0 10px rgba(0, 217, 255, 0.6);
}
.footer .box-container .box .share{
  display: flex;
  flex-wrap: wrap;
  padding: 1rem 0;
}
.footer .box-container .box .share a{
  height: 4rem;
  width: 4rem;
  padding: 1rem;
  text-align: center;
  border-radius: 50%;
  font-size: 1.7rem;
  margin-right: 1rem;
  transition: all 0.3s ease;
  background: rgba(155, 89, 182, 0.2);
  color: #00d9ff;
  border: 2px solid rgba(155, 89, 182, 0.4);
}
.footer .box-container .box .share a:hover{
  background: rgba(155, 89, 182, 0.4);
  transform: scale(1.1);
  border-color: #00d9ff;
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.6);
  color: #a8edea;
}
.footer .credit{
  padding: 1rem 0 0 0;
  text-align: center;
  font-size: 1.5rem;
  font-family: 'Nunito',sans-serif;
  font-weight: 600;
  color: #a8edea;
  border-top: .1rem solid rgba(155, 89, 182, 0.3);
  position: relative;
  z-index: 1;
}
.footer .credit a{
  color: #00d9ff;
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer .credit a:hover{
  text-shadow: 0 0 10px rgba(0, 217, 255, 0.6);
}
.footer .fa{
    color: #E90606;
    margin: 0 .3rem;
    font-size: 1.5rem;
    animation: pound .35s infinite alternate;
}
@-webkit-keyframes pound{
  to{
    transform: scale(1.1);
  }
}
@keyframes pound{
  to{
    transform: scale(1.1);
}
}
@media(max-width:450px){
  .footer .box-container .box{
    margin: 2rem;
  }
  .footer .box-container .box p{
    padding: 0.7rem;
  }
  .footer .box-container .box .share a{
    padding: 1.1rem;
  }
}
/* footer section ends */

/* common media queries starts*/
@media(max-width:450px){
  html{
    font-size: 55%;
  }
  body{
    padding-right: 0;
  }
  section{
    padding: 2rem;
  }
}
/* common media queries ends*/


/* scroll top starts */
#scroll-top{
  position: fixed;
  top: -140%;
  right: 2rem;
  padding: 1rem 1.5rem;
  font-size: 2rem;
  background: linear-gradient(135deg, #9b59b6 0%, #e74c3c 100%);
  color: #fff;
  border-radius: 50%;
  transition: 1s linear;
  z-index: 1000;
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.6);
}
#scroll-top.active{
  top: calc(100% - 12rem);
}
#scroll-top:hover {
  box-shadow: 0 0 30px rgba(155, 89, 182, 0.8);
}
/* scroll top ends */

/* Light Mode Styles for Experience Page */
body.light-mode {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #f5f7fa 100%);
  color: #1a202c;
}

body.light-mode header {
  background-color: #ffffff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-bottom: 2px solid #e2e8f0;
}

body.light-mode header .logo {
  color: #5a3fb5;
}

body.light-mode header .logo:hover {
  color: #0891b2;
  text-shadow: 0 0 8px rgba(8, 145, 178, 0.3);
}

body.light-mode header .navbar ul li a {
  color: #2d3748;
}

body.light-mode header .navbar ul li a.active,
body.light-mode header .navbar ul li a:hover {
  color: #0891b2;
  border-bottom-color: #0891b2;
  text-shadow: 0 0 8px rgba(8, 145, 178, 0.3);
}

body.light-mode #menu {
  color: #2d3748;
}

body.light-mode #menu:hover {
  color: #0891b2;
}

body.light-mode header .navbar {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

body.light-mode .heading {
  background: linear-gradient(135deg, #5a3fb5 0%, #0891b2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 8px rgba(90, 63, 181, 0.2));
}

body.light-mode .exp-card {
  background: #ffffff;
  border: 2px solid #cbd5e1;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

body.light-mode .exp-card:hover {
  background: #f8fafc;
  border: 2px solid #5a3fb5;
  box-shadow: 0 8px 20px rgba(90, 63, 181, 0.15);
  transform: translateY(-6px);
}

body.light-mode .exp-timeline::before {
  background: linear-gradient(to bottom, rgba(90, 63, 181, 0.3));
}

/* readable text on the white cards in light mode */
body.light-mode .exp-position {
  color: #2d3748;
}

body.light-mode .exp-institution,
body.light-mode .exp-location,
body.light-mode .exp-duration {
  color: #4a5568;
}

body.light-mode .exp-institution a {
  color: #0891b2;
}

body.light-mode .exp-institution a:hover {
  color: #5a3fb5;
}

body.light-mode .exp-description p {
  color: #4a5568;
}

body.light-mode .footer {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #f5f7fa 100%);
  border-top: 2px solid #e2e8f0;
}

body.light-mode .footer .box-container .box h3 {
  color: #5a3fb5;
}

body.light-mode .footer .box-container .box p,
body.light-mode .footer .box-container .box a {
  color: #2d3748;
}

body.light-mode .footer .box-container .box p i,
body.light-mode .footer .box-container .box a:hover {
  color: #0891b2;
}

body.light-mode .footer .box-container .box .share a {
  background: #f0f4f8;
  color: #0891b2;
  border: 2px solid #cbd5e1;
}

body.light-mode .footer .box-container .box .share a:hover {
  background: #e0eef6;
  border-color: #0891b2;
  box-shadow: 0 0 15px rgba(8, 145, 178, 0.2);
  color: #5a3fb5;
}

body.light-mode .footer .credit {
  color: #2d3748;
  border-top: 2px solid #e2e8f0;
}

body.light-mode .footer .credit a {
  color: #0891b2;
}

body.light-mode #scroll-top {
  background: linear-gradient(135deg, #5a3fb5 0%, #e74c3c 100%);
  color: #fff;
  box-shadow: 0 0 15px rgba(90, 63, 181, 0.3);
}

body.light-mode #scroll-top:hover {
  box-shadow: 0 0 25px rgba(90, 63, 181, 0.4);
}

body.light-mode #theme-toggle {
  background: #f0f4f8;
  border: 2px solid #cbd5e1;
  color: #5a3fb5;
}

body.light-mode #theme-toggle:hover {
  background: #e0eef6;
  box-shadow: 0 0 15px rgba(90, 63, 181, 0.2);
  color: #0891b2;
  border-color: #0891b2;
}

body.light-mode html::-webkit-scrollbar-track {
  background: #f8f9fa;
}

body.light-mode html::-webkit-scrollbar-thumb {
  background: #5a3fb5;
}

body.light-mode html::-webkit-scrollbar-thumb:hover {
  background: #0891b2;
}