html, body {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      scroll-behavior: smooth;
      overflow-x: hidden;
      font-family: 'Nunito', sans-serif;
      background-color: #fff;
    }

    *, *::before, *::after {
      box-sizing: inherit;
    }

    body {
      min-height: 100vh;
    }

    h1, h2, h3, h4, h5, h6 {
      font-family: 'Outfit', sans-serif;
    }

    .container{
      max-width: 1223px;
    }
    .custom-navbar {
      background: linear-gradient(to right, #e33400, #ff5100);
    }

    .nav-link,
    .navbar-brand {
      color: white !important;
      font-weight: 600;
    }

    .nav-link:hover {
      color: #ffe1cc !important;
    }

    .logo-img {
      height: 40px;
    }

    .submit-btn {
      background: linear-gradient(to right, #f03c90, #0f93d8);
      border: none;
      color: white !important;
      font-weight: bold;
      padding: 8px 16px;
      border-radius: 10px;
    }

    .submit-btn:hover {
      opacity: 0.9;
    }

    .navbar-nav {
      gap: 20px;
    }

    .divider {
      color: white;
      margin: 0 10px;
      font-size: 20px;
    }

 /* Timeline styles */
    .timeline-container {
      position: relative;
      margin: 60px 0;
      padding: 0 20px;
    }

    .timeline-line {
      position: absolute;
      top: 30px;
      left: 0;
      right: 0;
      height: 4px;
      background-color: #3398db;
      z-index: 1;
    }

    .timeline-step {
      position: relative;
      text-align: center;
      z-index: 2;
    }

    .timeline-circle {
    width: 50px;
    height: 50px;
    background-color: #f33;
    border: 4px solid white;
    border-radius: 50%;
    margin: 0 auto;
    position: relative;
    z-index: 3;
    box-shadow: 0 0 0 3px #f33;
    top: 2px;
    }

    .timeline-text {
      margin-top: 15px;
      font-size: 16px;
    }

    .timeline-date {
      font-weight: bold;
    }

    /* Announcement banner */
    .announcement {
      background: linear-gradient(to right, #d90000, #ff5100);
      color: white;
      font-weight: bold;
      padding: 30px 20px;
      text-align: center;
      margin: 50px 20px 20px;
      position: relative;
    }

    .announcement .target-icon {
    position: absolute;
    right: -54px;
    top: -44px;
    width: 121px;
    height: auto;
    }


/* blue red box section */

.overlay {
      background-color: rgba(255, 255, 255, 0.9);
      padding: 2rem;
    }
    .logo-section img {
      max-width: 500px;
    }
    .red-box {
      background-color: #b32225;
      color: white;
      padding: 1.5rem;
    
    }
    .blue-box {
      background-color: #133c94;
      color: white;
      padding: 1.5rem;
     
    }
    .title {
      font-weight: bold;
      text-transform: uppercase;
    }
    .iccsai-logo {
      max-width: 300px;
    }
    .colored-lines {
      height: 5px;
      display: flex;
    }
    .colored-lines > div {
      flex: 1;
    }
    .line-red { background-color: #b32225; }
    .line-blue { background-color: #133c94; }
    .line-yellow { background-color: #f3c612; }


    .accordion-button::after {
      margin-left: auto;
    }
    .track-title {
      color: #b32225;
      font-weight: 700;
      font-size: 1.3rem;
    }

    .accordion-button , .accordion-header {
    background: var(--bs-secondary-bg);
}

.accordion-header , .accordion-body, .accordion-item{
  border-radius: 20px;
}


.accordion-button:not(.collapsed) {
   
    background-color: var(--bs-secondary-bg);
    
}

.accordion-button{
  font-size: 18px;
}


/* cards carousel */

.carousel-wrapper {
      overflow: hidden;
      background-color: #f8f9fa;
    }

    .carousel-track {
      display: flex;
      width: max-content;
      animation: scrollLeft 20s linear infinite;
    }

    @keyframes scrollLeft {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(-50%);
      }
    }

    .member-card {
    background-color: #c62828;
    color: white;
    padding: 1rem;
    margin: 0 1.5rem;
    width: 300px;
    flex-shrink: 0;
    text-align: left;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    height: 150px;
    }

    .member-card img {
      height: 120px;
      width: 100px;
      object-fit: cover;
      border-radius: 5px;
    }

    .img-out {
    margin-left: -30px;
}

.conf-track button.accordion-button {
    min-height: 95px;
}

    /* ///////////// */


/* Conference Topics &Key Highlights */



.conference-section {
      
    }

    .conference-section .section-header {
    font-size: 3.5rem;
    color: #12141D;
    font-weight: 900;
    margin-bottom: 50px;
    }

    .conference-section .section-header span {
      color: #E94F1D;
    }

    .conference-section .card {
      border: none;
      border-radius: 12px;
      box-shadow: 0 0 10px rgba(0,0,0,0.05);
    }

    .conference-section .accordion-button::after {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%23E94F1D' viewBox='0 0 16 16'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    }

    .conference-section .accordion-button {
      font-weight: 500;
          min-height: 70px;
    }

    .conference-section .accordion-button:not(.collapsed) {
      color: #E94F1D;
      /* background-color: #fff; */
      box-shadow: none;
    }

    .conference-section .accordion-item {
      border: none;
      border-bottom: 1px solid #eee;
    }

    .conference-section .highlight-icon {
      color: #5E60CE;
      margin-right: 10px;
    }

    .conference-section .location-map {
      width: 100%;
      border-radius: 10px;
      overflow: hidden;
    }

    .conference-section .title-box {
      margin-bottom: 1rem;
    }

     .conference-section .key-highlight-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 0.75rem;
    }

    .conference-section .key-highlight-item .highlight-icon {
      flex-shrink: 0;
      margin-top: 2px;
    }

    .conference-section .key-highlight-item-content {
      padding-left: 0.5rem;
    }

/* ///////////// */



 /* Scoped styles for logo-carousel-section */
    .logo-carousel-section .carousel-container {
      overflow: hidden;
      background: #fff;
      padding: 20px 0;
    }

    .logo-carousel-section .logo-track {
      display: flex;
      animation: logo-scroll-left 30s linear infinite;
      width: fit-content;
    }

    .logo-carousel-section .logo-track img {
      height: 100px;
    margin: 0 12px;
    object-fit: contain;
    }

    @keyframes logo-scroll-left {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }

    .logo-carousel-section .carousel-inner-wrapper {
      display: flex;
      gap: 50px;
    }

    /* ///////////// */

    .section-box {
      background-color: white;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      border: 1px solid #e0e0e0;
      padding: 30px;
      margin-bottom: 30px;
    }

    .section-title {
      color: #c62828;
      font-weight: 700;
      font-size: 1.25rem;
      text-transform: uppercase;
    }

    .ieee-logo {
      max-width: 150px;
      margin-top: 15px;
    }

    .tourist-section {
      text-align: center;
      background-color: white;
      border-radius: 12px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
      padding: 40px 20px;
    }

     .tourist-title {
      color: #c62828;
      font-size: 2rem;
      font-weight: 700;
      text-align: center;
    }

    .tourist-subtitle {
      color: #555;
      margin-top: 10px;
      font-size: 1.1rem;
      text-align: center;
    }

    .card-title {
      color: #c62828;
      font-weight: 600;
    }

    .btn-location {
      background-color: #d32f2f;
      color: white;
      border: none;
    }

    .btn-location:hover {
      background-color: #b71c1c;
    }

    .card-img-top {
      height: 200px;
      object-fit: cover;
    }

    /* footer style */

     .footer {
      background: linear-gradient(to bottom, #b22222, #3b0a0a);
      color: white;
      padding: 40px 20px;
    }

    .footer .logo-text {
      font-family: 'Segoe UI', cursive;
      font-size: 50px;
      margin-top: 30px;
    }

    .footer ul {
      list-style: none;
      padding: 0;
    }

    .footer ul li {
      margin-bottom: 8px;
    }

    .footer ul li::before {
      content: "•";
      color: white;
      display: inline-block;
      width: 1em;
      margin-left: -1em;
    }

    .footer .section-title {
      font-weight: bold;
      margin-bottom: 10px;
    }

    .footer img {
      max-height: 60px;
    }

    .footer .links-section {
      display: flex;
      justify-content: flex-end;
      gap: 40px;
    }


    .accordion.conf-track .accordion-collapse{

      display: none;

    }

   .accordion.conf-track .accordion-button::after {
    background: none;
}


.main-content{
    min-height: 500px;
}



/* guidlines page css */

 .section-title {
      color: red;
      font-weight: 600;
      font-size: 1.2rem;
    }
    .main-title {
      font-weight: 700;
      font-size: 2rem;
      margin-top: 0.2rem;
      position: relative;
      display: inline-block;
    }
    .main-title::after {
      content: '';
      display: block;
      width: 60%;
      height: 2px;
      background-color: red;
      margin: 0.4rem auto 0;
    }
    .guidelines-text {
      max-width: 960px;
      margin: auto;
      color: #333;
      font-size: 1.05rem;
    }


    /* team section */

     .team-section {
      text-align: center;
      padding: 3rem 1rem;
    }
    .team-section .team-title {
      font-size: 2rem;
      font-weight: 700;
    }
    .team-section .team-subtitle {
      font-size: 1.25rem;
      font-weight: 600;
      margin-top: 2rem;
      margin-bottom: 1rem;
    }
    .team-section .card {
      border: none;
      border-radius: 12px;
      background: linear-gradient(to bottom, #ff0000, #ff9900);
      color: white;
      margin: 1rem auto;
      padding: 1.5rem 1rem;
      width: 280px;
      float:left; text-align:center; margin-right:10px;
    }
    .team-section .card img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 50%;
      border: 3px solid white;
      margin-bottom: 1rem;
      margin:10px auto;
    }
    .team-section .name {
      font-weight: 700;
      font-size: 1.1rem;
    }
    .team-section .title {
      font-weight: 500;
      font-size: 0.95rem;
    }
    .team-section .org {
      font-size: 0.85rem;
    }


    /* guidelines text */

   .guidelines-list {
      max-width: 800px;
      margin: 40px auto;
      background: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    }
    .guidelines-list h2 {
      font-weight: bold;
      margin-bottom: 30px;
      color: #333;
    }
    .guidelines-list ul {
      padding-left: 0;
      list-style: none;
    }
    .guidelines-list li {
      position: relative;
      padding-left: 30px;
      margin-bottom: 15px;
      line-height: 1.6;
    }
    .guidelines-list li::before {
      content: "\2022";
      position: absolute;
      left: 0;
      top: 0;
      color: #e33400;
      font-size: 28px;
      line-height: 1;
    }

     .fee-list {
      max-width: 800px;
      margin: 40px auto;
      background: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    }
    .fee-list ul {
      list-style: none;
      padding-left: 0;
      line-height: 35px;
    }
    .fee-list li::before {
      content: "---";
    color: #e33400;
    font-weight: bold;
    margin-right: 10px;
    }


     .coming-soon {
      font-weight: bold;
      font-size: 48px;
      background: linear-gradient(90deg, #ff6a00, #ee0979);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      animation: fadeInOut 2s ease-in-out infinite;
      text-align: center;
    }

    @keyframes fadeInOut {
      0%, 100% {
        opacity: 0;
      }
      50% {
        opacity: 1;
      }
    }


  /* ///////   Media Queries   ///////// */


    @media (max-width: 767px) {
      .timeline-step {
        margin-bottom: 40px;
      }

      .announcement {
        padding: 20px;
        font-size: 14px;
      }

      .announcement .target-icon {
        display: none;
      }
    }