@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');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: #000;
  color: #fff;
  margin: 0;
  font-family: Poppins, 'Segoe UI', sans-serif;
}

header {
  /* background: #e62b1e; */
  color: #fff;
  /* padding: 2rem 1rem; */
  text-align: center;

}

header .logotxt {
  width: 100%;
  height: 4.5rem;
  text-align: start;
  padding-left: 1rem;
}

.txt span {
  font-size: 2rem;
  font-weight: 800;
  color: #e62b1e;
}

.txt {
  font-size: 2rem;
}

.txt .x,
.txt p {
  font-size: 0.7rem;
}

@media(max-width:425px) {
  header .logotxt {
    width: 100%;
    height: 3.5rem;
    text-align: start;
    padding-left: 1rem;
  }

  .txt span {
    font-size: 1rem;
    font-weight: 800;
    color: #e62b1e;
  }

  .txt {
    font-size: 1rem;
  }

  .txt .x,
  .txt p {
    font-size: 0.5rem;
  }
}

a {
  text-decoration: none;
  color: white;
  font-weight: bold;
  margin-left: 2.5rem;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

header nav {
  width: 100%;
  background-color: #0a0a0a;
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.3);
  line-height: 3.4rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links li a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links li a:hover {
  color: #e62b1e;
}

.hamburger {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  nav {
    margin-top: 2rem;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    background-color: #111;
    position: absolute;
    top: 60px;
    right: 0;
    width: 60%;
    padding: 1rem;
    border-left: 2px solid #e62b1e;
  }

  .nav-links.show {
    display: flex;
  }

  .hamburger {
    display: block;
    position: absolute;
    right: 0.5rem;
  }
}


.buttons {
  display: flex;
  justify-content: space-around;
  top: 20px;
  left: 20px;
}

.buttons button {
  width: 150px;
  height: 40px;
  background-color: #e62b1e;
  margin: 20px;
  color: #fff;
  position: absolute;
  right: 0.5rem;
  top: 4.2em;
  overflow: hidden;
  font-size: 14px;
  letter-spacing: 1px;
  font-weight: 500;
  text-transform: uppercase;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
}

@media(max-width:768px) {
  .buttons button {
    right: 2rem;
    top: 3rem;
  }
}

.buttons button:before,
.buttons button:after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  background-color: #44d8a4;
  transition: all 0.3s cubic-bezier(0.35, 0.1, 0.25, 1);
}

.buttons button:before {
  right: 0;
  top: 0;
  transition: all 0.5s cubic-bezier(0.35, 0.1, 0.25, 1);
}

.buttons button:after {
  left: 0;
  bottom: 0;
}

.buttons button span {
  width: 100%;
  height: 100%;
  border: 1px solid #e62b1e;
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
  padding: 0;
  z-index: 1;
}

.buttons button span:before,
.buttons button span:after {
  content: "";
  position: absolute;
  width: 2px;
  height: 0;
  background-color: #44d8a4;
  transition: all 0.3s cubic-bezier(0.35, 0.1, 0.25, 1);
}

.buttons button span:before {
  right: 0;
  top: 0;
  transition: all 0.5s cubic-bezier(0.35, 0.1, 0.25, 1);
}

.buttons button span:after {
  left: 0;
  bottom: 0;
}

.buttons button p {
  padding: 0;
  margin: 0;
  transition: all 0.4s cubic-bezier(0.35, 0.1, 0.25, 1);
  position: absolute;
  width: 100%;
  height: 100%;
}

.buttons button p:before,
.buttons button p:after {
  position: absolute;
  width: 100%;
  transition: all 0.4s cubic-bezier(0.35, 0.1, 0.25, 1);
  z-index: 1;
  left: 0;
}

.buttons button p:before {
  content: attr(data-title);
  top: 50%;
  transform: translateY(-50%);
}

.buttons button p:after {
  content: attr(data-text);
  top: 150%;
  color: #fff;
}

.buttons button:hover:before,
.buttons button:hover:after {
  width: 100%;
}

.buttons button:hover span {
  z-index: 1;
}

.buttons button:hover span:before,
.buttons button:hover span:after {
  height: 100%;
}

.buttons button:hover p:before {
  top: -50%;
  transform: rotate(5deg);
}

.buttons button:hover p:after {
  top: 50%;
  transform: translateY(-50%);
}

.buttons button.start {
  background-color: #44d8a4;
  box-shadow: 0px 5px 10px -10px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
}

.buttons button.start p:before {
  top: -50%;
  transform: rotate(5deg);
}

.buttons button.start p:after {
  color: white;
  transition: all 0s ease;
  content: attr(data-start);
  top: 50%;
  transform: translateY(-50%);
  animation: start 0.3s ease;
  animation-fill-mode: forwards;
}

@keyframes start {
  from {
    top: -50%;
  }
}

.buttons button.start:hover:before,
.buttons button.start:hover:after {
  display: none;
}

.buttons button.start:hover span {
  display: none;
}

.buttons button:active {
  outline: none;
  border: none;
}

.buttons button:focus {
  outline: 0;
}

.tagline {
  font-size: 1.2rem;
  font-weight: 300;
}

.date {
  font-size: 1rem;
  opacity: 0.9;
  margin-top: 0.5rem;
}

section {
  background: radial-gradient(circle at left, #1a1a1a, #000);

  padding: 2rem 1.5rem;
  max-width: 800px;
  margin: 0 auto 5rem 10rem;
}

.about-aus {
  background: radial-gradient(circle at left, #1a1a1a, #000);
  margin-top: 4rem;

}

h2 {
  color: #e62b1e;
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

p {
  margin-bottom: 1.2rem;
}

.perks table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background-color: #222;
}

.perks th,
.perks td {
  padding: 1rem;
  border: 1px solid #444;
  text-align: center;
}

.perks th {
  background-color: #e62b1e;
  color: #111;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #1a1a1a;
  color: #ccc;
  font-size: 0.9rem;
  height: auto;
}


.speakers {
  max-width: 1200px;
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
}

.speakers h1 {
  width: 1000px;
  text-align: center;
  max-width: 1200px;
  font-size: 2rem;
  color: white;
  margin-bottom: 2rem;
}

.tedx {
  color: #e62b1e;
  font-weight: bold;
}

.tedx sup {
  font-size: 0.6em;
  vertical-align: super;
}

.year {
  color: #ff0055;
  font-weight: bold;
}

.speaker {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding: 1.5rem;
  border: 2px solid #e62b1e;
  background: #121212;
  border-radius: 8px;
}

.sourav {
  background-image: url("sourav.jpg");
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-size: cover;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.sagar-tej {
  background-image: url("sagar.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.ravi-kannan {
  background-image: url("Dr.Ravi\ kanan.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.ib-ubhadiya {
  background-image: url("ulabhadiya.jpg");
  background-size: contain;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.vijender {
  background-image: url("Dr.\ vijendra\ chavan.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.pragati {
  background-image: url("pragati\ singh.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.kanisq {
  background-image: url("kanisq.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.pratha {
  background-image: url("pratha.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.khushbu {
  background-image: url("khushbu.jpg");
  background-size: contain;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.Arghadeep {
  background-image: url("Arghadeep\ Barua.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.sumit {
  background-image: url("sumit.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.Nilima {
  background-image: url("nilima\ roy.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.Akhinchan {
  background-image: url("akhinchan\ sarkar.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}

.Saiyam {
  background-image: url("sayamm\ muzumder.jpg");
  background-size: cover;
  filter: grayscale();
  --webkit-filter: grayscale(100%);
  --webkit-blend-mode: multiply;
  background-position: center;
  width: 100%;
  height: 50rem;
}


.speaker-info h2 {
  margin: 0 0 0.5rem 0;
  color: #ffffff;
}

.position {
  color: #ff4444;
  font-weight: 500;
  margin-bottom: 1rem;
}



/* Responsive layout */
@media (max-width: 768px) {
  .speaker {
    flex-direction: column;
    align-items: center;
  }

  .speaker-img {
    width: 100%;
    height: 200px;
  }

  .speaker-info {
    text-align: center;
  }
}

/* flip card */

.flip-card {
  background-color: transparent;
  width: 324px;
  height: 354px;
  perspective: 1000px;
  font-family: sans-serif;
  margin: 0 0 2.5rem 2.9rem;
}

.title {
  font-size: 0.8em;
  font-weight: 900;
  position: absolute;
  top: 1.2rem;
  margin: 0;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  box-shadow: 0 8px 14px 0 rgba(0, 0, 0, 0.2);
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border: 1px solid #e62b1e;
  border-radius: 1rem;

}

.flip-card-front {
  color: #fff;

  overflow: hidden;
}

.flip-card-back {
  background: linear-gradient(120deg, rgb(231, 69, 69) 30%, #e62b1e 88%,
      rgb(198, 64, 23) 40%, rgb(223, 57, 57) 78%);
  color: white;
  padding: 0 15px 0 15px;
  transform: rotateY(180deg);
}

.bio {
  font-size: 0.7rem;
  line-height: 1.5;
  position: absolute;
  top: 6rem;
  text-align: start;
  color: #fff;
}

.flip-card-front p {
  margin-bottom: 0;
  font-size: large;
  font-weight: 600;
}




/* crousel */

.team-carousel-section {
  padding: 3rem 2rem;
  background-color: #0d0d0d;
  color: white;
  text-align: center;
}

.team-carousel-section h2 {
  color: #e62b1e;
  margin-bottom: 2rem;
  font-size: 2rem;
}

.carousel-container {
  position: relative;
  overflow: hidden;
}

.carousel {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 1rem;
}

/* Carousel buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: #e62b1e;
  color: white;
  border: none;
  font-size: 2rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  z-index: 10;
  opacity: 0.8;
  border-radius: 4px;
}

.carousel-btn:hover {
  opacity: 1;
}

.prev {
  left: 0;
}

.next {
  right: 0;
}

/* Hide scroll bar for clean look */
.carousel::-webkit-scrollbar {
  display: none;
}

/* crousel end */


.team-section {
  max-width: 1200px;
  padding: 1rem;
}

.team-section h1 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.tedx {
  color: #e62b1e;
  font-weight: bold;
}

.tedx sup {
  font-size: 0.6em;
  vertical-align: super;
}

.year {
  color: #ff0055;
  font-weight: bold;
}

.team-title {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: white;
}


.role {
  margin-bottom: 1.5rem;
  border-left: 4px solid #e62b1e;
  padding-left: 1rem;
}

.role h3 {
  color: #e62b1e;
  margin-bottom: 0.3rem;
}

.role p {
  color: #ddd;
  margin: 0;
}

.contact {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #444;
}

.contact h2 {
  color: #ff4444;
  margin-bottom: 0.5rem;
}

.contact p {
  margin: 0.3rem 0;
  color: #ccc;
}

.contact a {
  color: #e62b1e;
  text-decoration: none;
  margin: 0;
}

.contact a:hover {
  text-decoration: underline;
}

.social {
  margin-top: 1rem;
}

/* scrool animation */

.scroll-fade {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.5s ease-out, transform 0.6s ease-out;
}

.scroll-fade.visible {
  opacity: 1;
  transform: translateY(0);
}







.theme-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: radial-gradient(circle at left, #1a1a1a, #000);
  padding: 4rem 3rem;
  border-radius: 12px;
  /* margin: ; */
  max-width: 1200px;
  gap: 3rem;
}

.theme-content {
  flex: 1;
}

.theme-content h2 {
  font-size: 2.5rem;
  font-weight: bold;
  line-height: 1.4;
  position: relative;
  margin-bottom: 2rem;
}



.theme-content .red {
  color: #e62b1e;
}

.theme-content p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #d0d0d0;
  margin-bottom: 1.5rem;
}

.theme-image {
  flex: 0.8;
  text-align: center;
}

.theme-image .img {
  width: 395px;
  height: 419px;
  max-width: 100%;
  height: auto;
  background-image: url("Logo.jpg");
  background-size: cover;
}

.catalyst-title {
  font-size: 2.5rem;
  margin-top: 1.2rem;
  font-weight: 900;
  letter-spacing: 2px;
}

.catalyst-subtitle {
  font-size: 1rem;
  color: #fff;
  margin-top: 0.5rem;
}

.catalyst-subtitle .red {
  color: #e62b1e;
}






@media ((max-width: 425px)) {
  section {
    margin: auto;
  }

  .theme-image {
    display: none;
  }

  .nav-anchor {
    display: none;
  }
}




.team-section {
  padding: 2rem 1.5rem;
  max-width: 1200px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.team-member {
  /* width: 28rem; */
  background: linear-gradient(120deg, rgb(231, 69, 69) 30%, #e62b1e 88%, rgb(198, 64, 23) 40%, rgb(223, 57, 57) 78%);
  border: 1px solid #e62b1e;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.6);
}

.member-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1rem;
  border: 3px solid #fff;
  /* White border for photos */
}

.team-member h3 {
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.role-title {
  color: #ffd700;
  /* Gold color for role titles */
  font-weight: 600;
  margin-bottom: 0.8rem;
  font-size: 0.95rem;
}

.member-bio {
  color: #f0f0f0;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0;
}



@media (max-width: 768px) {
  .team-grid {
    grid-template-columns: 1fr;
    /* Stack members on small screens */
  }

  .team-section {
    margin: auto;
    /* Center on small screens */
    padding: 1.5rem;
  }
}

/* gallery section */

/* gallery couresel */

.gallery-carousel-section {
  width: 100%;
  padding: 3rem 2rem;
  background-color: #0d0d0d;
  color: white;
  text-align: center;
  /* margin: 0; */
}

.gallery-carousel-section h2 {
  font-size: 2rem;
  color: #e62b1e;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.carousel-container {
  position: relative;
  overflow: hidden;
}

.crousel2 {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 1rem 0;
}

.crousel2 img {
  width: 45rem;
  height: 31rem;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid #e62b1e;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.crousel2 img:hover {
  transform: scale(1.05);
}

/* Buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: #e62b1e;
  color: white;
  border: none;
  font-size: 2rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  z-index: 10;
  opacity: 0.8;
  border-radius: 4px;
}

.carousel-btn:hover {
  opacity: 1;
}

.prev {
  left: 0;
}

.next {
  right: 0;
}

/* Hide scrollbar */
.crousel2::-webkit-scrollbar {
  display: none;
}

/* end */

/* Blog css */


.blog-header .heading {
  border-top: #e62b1e solid 2px;
  border-bottom: #e62b1e solid 2px;
  /* background-color: #e62b1e; */
  text-align: center;
  padding: 3rem 1rem;
}

.blog-header h1 {
  margin: 0;
  font-size: 2.8rem;
  color: #ffffff;
}

.blog-header .subtitle {
  color: #f7f7f7;
  font-weight: 300;
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

.blog-container {
  max-width: 900px;
  margin: auto;
  padding: 2rem;
  display: grid;
  gap: 2rem;
}

.blog-card {
  background-color: #1a1a1a;
  border-left: 4px solid #b6ff00;
  padding: 1.5rem;
  border-radius: 6px;
  transition: transform 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-5px);
}

.blog-card h2 {
  margin: 0;
  color: #ffffff;
  font-size: 1.5rem;
}

.blog-card .date {
  font-size: 0.9rem;
  color: #aaaaaa;
  margin: 0.5rem 0;
}

.blog-card p {
  color: #dddddd;
}

.blog-card a {
  color: #e62b1e;
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  margin-top: 0.5rem;
}

.blog-card a:hover {
  text-decoration: underline;
}

.blog-footer {
  text-align: center;
  padding: 1.5rem;
  background-color: #111;
  font-size: 0.9rem;
  color: #cccccc;
}

/* end */