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

body {
  background-color: #ffffff;
  margin: 0;
  font-family: 'Poppins', sans-serif;
}

h1, h2 {
  text-transform: uppercase;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ========== NAVIGATION BAR - RESPONSIVE ========== */
header {
  background-color: #003366;
  position: relative;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: #003366;
  max-width: 1500px;
  margin: 0 auto;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 1001;
}

.logo img {
  height: 40px;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.logo-link img {
  height: 40px;
  margin-right: 10px;
}

.logo-text {
  color: white;
  font-size: 1.5rem;
  font-weight: 600;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.nav-links li a:hover {
  color: #66ccff;
  transform: scale(1.1);
}

/* Mobile menu toggle */
#menu-toggle {
  display: none;
}

.hamburger {
  display: none;
  font-size: 1.8rem;
  color: white;
  cursor: pointer;
  z-index: 1001;
  transition: transform 0.3s ease;
}

.hamburger:hover {
  transform: scale(1.1);
}

/* ========== HERO SECTION - RESPONSIVE ========== */
.hero {
  position: relative;
  background: url('../assets/images/conference-spec.jpg') no-repeat center center / cover;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 2rem;
  min-height: 70vh;
  text-align: center;
  overflow: hidden;
  margin-bottom: 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 0;
}

.hero-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
  max-width: 90%;
  color: #ffffff;
  text-align: center;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: #ffffff;
  text-align: center;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(
    90deg,
    red,
    orange,
    yellow,
    green,
    cyan,
    blue,
    violet,
    red
  );
  background-size: 400% auto;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: rainbowFlow 16s linear infinite;
  text-align: center;
}

.hero-details {
  text-align: center;
}

.hero-details p {
  font-size: 1.1rem;
  margin: 0.3rem 0;
  color: #ffffff;
}

.hero-button {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 15px 40px;
  font-size: 1.1rem;
  color: #003366;
  background-color: #66ccff;
  border: none;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.hero-button:hover {
  background-color: #124a81;
  transform: scale(1.05);
  color: #d0e7ff;
}

.hero-image {
  display: none;
}

@keyframes rainbowFlow {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 400% center;
  }
}

/* ========== DESKTOP LARGE (1200px+) ========== */
@media (min-width: 1200px) {
  .navbar {
    padding: 1.2rem 3rem;
  }
  
  .hero {
    padding: 6rem 3rem;
    min-height: 75vh;
  }
  
  .hero-title {
    font-size: 4.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.8rem;
  }
  
  .hero-details p {
    font-size: 1.2rem;
  }
}

/* ========== TABLET/MEDIUM SCREENS (768px - 1199px) ========== */
@media (max-width: 1199px) and (min-width: 768px) {
  .navbar {
    padding: 1rem 1.5rem;
  }
  
  .logo-text {
    font-size: 1.3rem;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  .nav-links li a {
    font-size: 0.9rem;
  }
  
  .hero {
    padding: 4rem 2rem;
    min-height: 65vh;
  }
  
  .hero-title {
    font-size: 3.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.4rem;
  }
  
  .hero-details p {
    font-size: 1.05rem;
  }
}

/* ========== MOBILE MEDIUM (481px - 767px) ========== */
@media (max-width: 767px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: #003366;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: right 0.4s ease-in-out;
    z-index: 1000;
  }

  #menu-toggle:checked + .hamburger + .nav-links {
    right: 0;
  }

  .nav-links li {
    text-align: center;
  }

  .nav-links li a {
    font-size: 1.2rem;
    padding: 1rem;
    display: block;
  }

  .hero {
    padding: 3rem 1.5rem;
    min-height: 60vh;
  }

  .hero-title {
    font-size: 2.8rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-details p {
    font-size: 1rem;
  }

  .hero-button {
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
  }
}

/* ========== MOBILE SMALL (320px - 480px) ========== */
@media (max-width: 480px) {
  .navbar {
    padding: 0.8rem 1rem;
  }
  
  .logo-text {
    font-size: 1.1rem;
  }
  
  .logo img {
    height: 35px;
  }

  .hero {
    padding: 2.5rem 1rem;
    min-height: 55vh;
  }

  .hero-title {
    font-size: 2.2rem;
    line-height: 1.1;
  }

  .hero-subtitle {
    font-size: 1rem;
    line-height: 1.3;
  }

  .hero-details p {
    font-size: 0.9rem;
  }

  .hero-button {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
}

/* ========== MOBILE EXTRA SMALL (below 320px) ========== */
@media (max-width: 319px) {
  .hero {
    padding: 2rem 0.5rem;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 0.9rem;
  }
  
  .hero-details p {
    font-size: 0.8rem;
  }
}

/* ========== REMAINING SECTIONS (unchanged) ========== */
.publication-note {
  background-color: #ffffff;
  color: #003366;
  text-align: center;
  padding: 4rem 1rem 4rem 1rem;
  font-size: 1.3rem;
  line-height: 1.6;
  border-top: none;
  border-bottom: 1px solid #e6f0ff;
}

.partners-wrapper {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 4rem 2rem;
  background-color: #e6f0ff;
}

.media-partner,
.publishing-partner {
  flex: 1 1 45%;
  box-sizing: border-box;
  background-color: #ffffff;
  padding: 2rem;
  text-align: center;
  border-radius: 10px;
  color: #003366;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.media-partner:hover,
.publishing-partner:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.media-partner h2,
.publishing-partner h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.partner-subtitle {
  font-size: 1.2rem;
  font-weight: 500;
  display: block;
  margin-top: 0.5rem;
  color: #003366;
}

.partner-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.partner-logo {
  max-width: 200px;
  width: 100%;
  height: auto;
  transition: transform 0.3s ease;
}

.partner-logo:hover {
  transform: scale(1.05);
}

.partner-link {
  color: #003366;
  font-size: 1.1rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.3s ease;
}

.partner-link:hover {
  color: #66ccff;
}

@media (max-width: 768px) {
  .partners-wrapper {
    flex-direction: column;
  }

  .media-partner,
  .publishing-partner {
    flex: 1 1 100%;
  }
}

.association-partners {
  background-color: #e6f0ff;
  padding: 4rem 2rem;
  text-align: center;
  color: #003366;
}

.association-partners h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
}

.association-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.partner-item {
  text-align: center;
  max-width: 120px;
}

.partner-item img {
  width: 100%;
  max-height: 80px;
  object-fit: contain;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.partner-item img:hover {
  transform: scale(1.05);
}

.partner-item p {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #003366;
}

.about-conference,
.about-iem {
  background-color: #ffffff;
  padding: 4rem 2rem;
  color: #003366;
  text-align: center;
}

.about-conference h2,
.about-iem h2 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 2rem;
}

.about-conference p,
.about-iem p {
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 1000px;
  margin: 0 auto;
  text-align: justify;
}

.organizers-section {
  background: #e6f0ff;
  color: #002244;
  padding: 60px 20px;
  font-family: 'Poppins', sans-serif;
  text-align: center;
}

.organizers-section h2 {
  font-size: 2rem;
  color: #003366;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.organizers-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 800px;
  margin: 0 auto;
  gap: 30px;
}

.organizers-left, .organizers-right {
  width: 100%;
}

.organizers-right ul.fancy-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 600px;
  text-align: left;
}

.organizers-right ul.fancy-list li {
  position: relative;
  margin-bottom: 15px;
  padding-left: 25px;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.organizers-right ul.fancy-list li::before {
  content: "★";
  position: absolute;
  left: 0;
  top: 0;
  color: #003366;
  transition: transform 0.3s ease, color 0.3s ease;
}

.organizers-right ul.fancy-list li:hover {
  color: #003366;
}

.organizers-right ul.fancy-list li:hover::before {
  transform: rotate(360deg);
  color: #66ccff;
}

.coming-soon {
  font-size: 1.2rem;
  font-weight: 600;
  color: #003366;
  margin-top: 10px;
  text-align: center;
}

@media (max-width: 768px) {
  .organizers-section h2 {
    text-align: center;
  }

  .organizers-right ul.fancy-list {
    text-align: center;
    padding-left: 0;
  }

  .organizers-right ul.fancy-list li {
    padding-left: 1.5rem;
  }

  .coming-soon {
    text-align: center;
  }
}

.site-footer {
  background-color: #001f3f;
  color: white;
  padding: 2rem 1.5rem;
  font-family: 'Poppins', sans-serif;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-section {
  flex: 1;
  min-width: 220px;
}

.footer-section h4 {
  color: #66ccff;
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.footer-section p,
.footer-section a {
  color: white;
  margin: 0.3rem 0;
  text-decoration: none;
  font-size: 1rem;
}

.footer-section a:hover {
  color: #99ddff;
  text-decoration: underline;
}

.footer-section i {
  margin-right: 0.5rem;
  color: #66ccff;
  font-size: 1rem;
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  border-top: 1px solid #003366;
  padding-top: 1rem;
  font-size: 0.9rem;
  color: #99ddff;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .footer-section {
    max-width: 90%;
    margin-bottom: 1.5rem;
  }

  .footer-section iframe {
    height: 200px;
  }
}

.advisory-section {
  background-color: #ffffff;
  color: #003366;
  padding: 4rem 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  font-family: 'Poppins', sans-serif;
}

.advisory-heading {
  flex: 1;
  min-width: 250px;
}

.advisory-heading h2 {
  font-size: 2.4rem;
  font-weight: 700;
  color: #003366;
  margin-bottom: 1rem;
}

.advisory-list {
  flex: 2;
  min-width: 300px;
}

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

.advisory-list li {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 0.8rem;
  border-left: 4px solid #66ccff;
  padding-left: 1rem;
  transition: background 0.3s;
}

.advisory-list li:hover {
  background-color: #ffffff;
  border-left-color: #99ddff;
}

@media (max-width: 768px) {
  .advisory-section {
    flex-direction: column;
    text-align: center;
  }

  .advisory-heading h2 {
    font-size: 2rem;
  }

  .advisory-list li {
    border-left: none;
    border-top: 2px solid #66ccff;
    padding-top: 0.8rem;
    padding-left: 0;
  }
}

.call-for-papers-section {
  background-color: #fcfcfc;
  color: #003366;
  padding: 4rem 2rem;
  font-family: 'Poppins', sans-serif;
  text-align: center;
}

.cfp-container {
  max-width: 1200px;
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cfp-left h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: #003366;
  text-transform: uppercase;
}

.cfp-subtext {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: #003366;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.abstract-btn {
  background-color: #66ccff;
  color: #013467;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  border-radius: 0.5rem;
  transition: background-color 0.3s ease;
  margin-bottom: 2rem;
}

.abstract-btn:hover {
  background-color: #01334b;
  color: #d0e7ff;
}

.topics-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  list-style: none;
  padding: 0;
  max-width: 1000px;
}

.topics-list li {
  flex: 1 1 calc(33.33% - 1rem);
  background-color: #ffffff;
  padding: 1rem;
  border-radius: 8px;
  transition: transform 0.3s ease, background-color 0.3s ease;
  color: #003366;
  text-align: center;
}

.topics-list li:hover {
  transform: translateY(-5px);
  background-color: #dce9f6;
  color: #66ccff;
}

.cfp-note {
  text-align: center;
  font-size: 1rem;
  margin-top: 5rem;
  color: #003366;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .topics-list li {
    flex: 1 1 100%;
  }

  .abstract-btn {
    width: 100%;
  }

  .cfp-subtext,
  .cfp-note {
    padding: 0 1rem;
  }
}

.invited-speakers {
  background-color: #ffffff;
  color: #003366;
  padding: 5rem 2rem;
  text-align: center;
  font-family: 'Poppins', sans-serif;
}

.invited-speakers h2 {
  font-size: 2.8rem;
  color: #003366;
  margin-bottom: 1.5rem;
}

.invited-speakers .coming-soon {
  font-size: 1.5rem;
  color: #003366;
  opacity: 0.9;
}
@keyframes rainbowFlow {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 400% center;
  }
}
.important-dates-section {
  background-color: #ffffff;
  color: #003366;
  padding: 4rem 2rem;
  font-family: 'Poppins', sans-serif;
}

.section-heading {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  color: #003366;
}

.dates-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}

.dates-column {
  flex: 1 1 45%;
  background-color: #dcf4fd;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.subheading {
  font-size: 1.5rem;
  color: #003366;
  margin-bottom: 1.5rem;
}

.date-list {
  list-style: none;
  padding-left: 0;
}

.date-list li {
  margin-bottom: 1rem;
  padding: 1rem;
  background-color: #dcf4fd;
  border-left: 4px solid #66ccff;
  border-radius: 0.5rem;
  transition: background 0.3s;
}

.date-list li:hover {
  background-color: #bde5ff;
}

.event {
  display: block;
  font-weight: 600;
  color: #003366;
  margin-bottom: 0.3rem;
}

.registration-section {
  background-color: #e6f0ff;
  color: #002244;
  padding: 4rem 2rem;
  font-family: 'Poppins', sans-serif;
}

.section-heading {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #003366;
}

.registration-info {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  color: #002244;
}

.bank-details {
  background-color: #d0e7ff;
  padding: 1.5rem;
  border-radius: 1rem;
  margin-bottom: 2rem;
  color: #001f3f;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.bank-details ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.bank-details li {
  margin-bottom: 0.75rem;
}

.highlight {
  font-weight: 600;
  color: #003366;
}

.highlight-link {
  color: #003366;
  text-decoration: underline;
}

.subheading {
  font-size: 1.75rem;
  margin: 2rem 0 1rem;
  color: #003366;
}

.fee-table {
  margin-bottom: 3rem;
}

.fee-table h4 {
  color: #003366;
  margin-bottom: 0.5rem;
}

.fee-table table {
  width: 100%;
  border-collapse: collapse;
  background-color: #ffffff;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.1);
}

.fee-table th,
.fee-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #d6eaff;
  color: #001f3f;
}

.fee-table thead {
  background-color: #99ddff;
  color: #001f3f;
  font-weight: 600;
}

.fee-table tbody tr:hover {
  background-color: #f0faff;
  transition: 0.3s ease;
}

.contact-section {
  background-color: #e6f0ff;
  padding: 4rem 2rem;
  text-align: center;
  font-family: 'Poppins', sans-serif;
}

.section-heading {
  font-size: 2.5rem;
  color: #003366;
  margin-bottom: 3rem;
}

.contact-boxes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.contact-box {
  background-color: #ffffff;
  border: 1px solid #99ddff;
  border-radius: 1rem;
  padding: 2rem;
  width: 300px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.contact-box:hover {
  transform: translateY(-5px);
}

.contact-box .icon {
  font-size: 2.5rem;
  color: #003366;
  margin-bottom: 1rem;
}

.contact-box h4 {
  font-size: 1.25rem;
  color: #001f3f;
  margin-bottom: 0.5rem;
}

.contact-box p {
  color: #002244;
  font-size: 1rem;
  line-height: 1.5;
}

.contact-box a {
  color: #003366;
  text-decoration: none;
}

.contact-box a:hover {
  text-decoration: underline;
}
.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.logo-link img {
  height: 40px;
  margin-right: 10px;
}

.logo-link .logo-text {
  font-size: 1.8rem;
  font-weight: 600;
  color: #ffffff; /* Set to white */
  text-decoration: none;
}
@media (max-width: 1024px) {
  .hero {
    padding: 4rem 2rem;
    text-align: center;
    justify-content: center;
  }

  .hero-content {
    max-width: 90%;
    margin: 0 auto;
    text-align: center;
  }

  .hero-title {
    font-size: 3rem;
    text-align: center;
  }

  .hero-details,
  .hero-subtitle {
    text-align: center;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 3rem 1.5rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-button {
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 2.5rem 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-details p {
    font-size: 1rem;
  }
}