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-color: #5a5a5a !important;
}

.navbar .nav-link {
  color: white !important;
}

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

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

.logo-img {
  height: 50px;   /* control logo size */
  width: auto;
}

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

.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;
    }
}
/* Custom Track Section Styles */
.track-section {
    padding: 2rem 0;
}

.track-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.track-card {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease-in-out;
}

.track-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1);
}

.track-card h6 {
    font-weight: 700;
    color: #b32225;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.track-card h6 i {
    margin-right: 0.5rem;
    color: #133c94;
}

.track-card ul {
    padding-left: 1.25rem;
    margin-bottom: 0;
}

.track-card li {
    margin-bottom: 0.5rem;
    color: #333;
}

@media (max-width: 768px) {
    .track-grid {
        grid-template-columns: 1fr;
    }
}