/* Reset default styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  background: #f8fafc;
  color: #1e293b;
}

/* Page Navigation */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* Header Styles */
.header {
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
  padding: 0;
  box-shadow: 0 4px 20px rgba(30, 64, 175, 0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 80px;
}

.logo-container {
  display: flex;
  align-items: center;
  width: auto;
}

.left-logo, .right-logo {
  height: 60px;
  width: 60px;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.left-logo:hover, .right-logo:hover {
  transform: scale(1.05);
}

.nav-list {
  margin: 0 20px;
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 0;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-list li {
  position: relative;
  list-style-type: none;
}

.nav-list a {
  color: white;
  text-decoration: none;
  padding: 12px 20px;
  display: block;
  font-weight: 500;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  font-size: 0.95rem;
  white-space: nowrap;
  cursor: pointer;
}

.nav-list .active-link {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-list a:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.dropdown {
  display: none;
  position: absolute;
  background: white;
  min-width: 220px;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(30, 64, 175, 0.15);
  border: 1px solid #e2e8f0;
  top: calc(100% + 8px);
  left: 0;
  padding: 8px 0;
  z-index: 1001;
}

.dropdown-parent:hover .dropdown {
  display: block;
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown li {
  width: 100%;
}

.dropdown a {
  padding: 12px 20px;
  border-radius: 0;
  font-weight: 500;
  color: #475569;
  font-size: 0.9rem;
}

.dropdown a:hover {
  background: #f1f5f9;
  color: #1e40af;
  transform: none;
}

/* MarqueeBar */
.marquee-bar {
  background: #f9f7f7;
  color: white;
  padding: 12px 0;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.2);
}

.marquee-content {
  display: flex;
  align-items: center;
  white-space: nowrap;
  animation: scroll-left 25s linear infinite;
  font-weight: 500;
}

.marquee-content a {
  margin: 0 40px;
  color: rgb(4, 4, 4);
  text-decoration: none;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.15);
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.marquee-content a:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

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

/* Landing Section Styles */
.landing-section-upper {
  background: linear-gradient(135deg, rgba(38, 153, 253, 0.5), rgba(59, 130, 246, 0.5)),
              url("https://www.isquareit.edu.in/wp-content/uploads/2018/06/alumni_img2_lobby.jpg");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  text-align: center;
  padding: 8rem 2rem 6rem;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}

.landing-section-upper h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: white;
  font-weight: 800;
  margin-bottom: 2rem;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  line-height: 1.1;
  max-width: 1100px;
  letter-spacing: -1px;
}

.conference-subtitle {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 1.5rem;
  font-weight: 400;
  max-width: 800px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.cta-button {
  background: linear-gradient(135deg, #ffffff, #f1f5f9);
  color: #1e40af;
  padding: 16px 40px;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
  text-decoration: none;
  display: inline-block;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(255, 255, 255, 0.4);
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Landing Section Lower */
.landing-section-lower {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  padding: 4rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 3rem;
  box-shadow: 0 -4px 20px rgba(30, 64, 175, 0.2);
}

.landing-section-lower-left-box {
  text-align: left;
  flex: 1;
  min-width: 350px;
}

.landing-section-lower-heading {
  font-size: 1.1rem;
  font-weight: 600;
  opacity: 0.9;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #bfdbfe;
}

.landing-section-lower-body {
  font-size: 3.2rem;
  font-weight: 800;
  margin-top: 0.5rem;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  line-height: 1.1;
  letter-spacing: -1px;
}

/* Countdown Styles */
.countdown {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.countdown > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(15px);
  color: #fff;
  padding: 2rem 1.5rem;
  border-radius: 16px;
  font-weight: bold;
  min-width: 100px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.countdown > div:hover {
  transform: translateY(-8px) scale(1.05);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.countdown > div span:first-child {
  font-size: 2.8rem;
  line-height: 1;
  margin-bottom: 0.5rem;
  font-weight: 800;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.countdown > div span:last-child {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.9;
  font-weight: 600;
}

/* About Section Styles */
.grid-container {
  margin: 3rem auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  padding: 3rem;
  background: white;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
  border: 1px solid #e2e8f0;
  max-width: 1300px;
}

.left-panel {
  padding: 1rem;
}

.section {
  margin-bottom: 3rem;
  padding: 2.5rem;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(30, 64, 175, 0.05);
  transition: all 0.3s ease;
  border-left: 4px solid #3b82f6;
  border: 1px solid #e2e8f0;
}

.section:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(30, 64, 175, 0.1);
  border-left-color: #1e40af;
}

.section h2 {
  margin-bottom: 1.5rem;
  color: #1e40af;
  font-size: 1.8rem;
  font-weight: 700;
  position: relative;
}

.section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.section p {
  line-height: 1.8;
  color: #475569;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.section a {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  padding: 12px 28px;
  text-decoration: none;
  border-radius: 30px;
  display: inline-block;
  margin-top: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
  font-size: 0.95rem;
  cursor: pointer;
}

.section a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

.right-panel {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  padding: 2.5rem;
  border-radius: 20px;
  color: white;
  box-shadow: 0 10px 30px rgba(30, 64, 175, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.right-panel h2 {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  color: white;
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 2rem;
  border-radius: 15px;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 1px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.date-item {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  padding: 1.2rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.date-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(8px);
}

.date-box {
  background: linear-gradient(135deg, #e8e3e31a, #f2ebeb33);
  color: white;
  padding: 1rem;
  border-radius: 12px;
  text-align: center;
  width: 75px;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(4, 4, 4, 0.3);
  transition: transform 0.3s ease;
}

.date-box:hover {
  transform: scale(1.05);
}

.date-box span:first-child {
  font-size: 0.9rem;
  font-weight: 600;
  display: block;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.9;
   color:#eaedf5;
}

.date-box span:last-child {
  font-size: 1.6rem;
  font-weight: 800;
  display: block;
  margin-top: 4px;
  color:#eaedf5;
}

.date-details {
  padding-top: 0.5rem;
  flex: 1;
}

.date-details div:first-child {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: white;
}

.date-details div:last-child {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  line-height: 1.4;
  font-weight: 400;
}

/* About Us Page Styles */
.about-container {
  padding: 4rem 2rem;
  max-width: 1300px;
  margin: auto;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f8fafc;
  min-height: 100vh;
}

.about-header {
  text-align: center;
  margin-bottom: 5rem;
  position: relative;
  padding: 3rem 0;
}

.about-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.about-header-h1 {
  font-size: 3.8rem;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.1;
  letter-spacing: -1px;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 5rem;
  padding: 4rem;
  background: white;
  border-radius: 25px;
  box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
  border: 1px solid #e2e8f0;
}

.about-text-p {
  line-height: 1.8;
  color: #475569;
  margin-bottom: 2rem;
  font-size: 1.15rem;
  text-align: justify;
  font-weight: 400;
}

.about-text-p strong {
  color: #1e40af;
  font-weight: 700;
}

.about-image {
  text-align: center;
  position: relative;
}

.about-image::before {
  content: '';
  position: absolute;
  top: -15px;
  left: -15px;
  right: -15px;
  bottom: -15px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 25px;
  z-index: -1;
  opacity: 0.08;
}

.about-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(30, 64, 175, 0.15);
  transition: transform 0.3s ease;
  border: 1px solid #e2e8f0;
}

.about-image img:hover {
  transform: scale(1.02);
}

/* Call for Papers Styles */
.call-for-papers-container {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f8fafc;
  min-height: 100vh;
}

/* Hero Section */
.cfp-hero {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.95), rgba(59, 130, 246, 0.9)),
              url("https://images.pexels.com/photos/1181298/pexels-photo-1181298.jpeg?auto=compress&cs=tinysrgb&w=1920&h=1080&fit=crop");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  text-align: center;
  padding: 6rem 2rem 4rem;
  color: white;
  position: relative;
}

.cfp-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(30, 64, 175, 0.1);
  z-index: 1;
}

.cfp-hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
}

.cfp-hero-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  line-height: 1.1;
  letter-spacing: -1px;
}

.cfp-conference-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.3;
}

.cfp-hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
}

.cfp-theme {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  padding: 1.5rem 2.5rem;
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: 1rem;
}

.theme-label {
  font-weight: 600;
  margin-right: 0.5rem;
  color: #bfdbfe;
  font-size: 1rem;
}

.theme-text {
  font-weight: 700;
  font-size: 1.1rem;
}

/* Content Wrapper */
.cfp-content-wrapper {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Overview Section */
.cfp-overview {
  padding: 5rem 0;
  background: white;
}

.cfp-overview h2 {
  font-size: 3rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 800;
  position: relative;
}

.cfp-overview h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.cfp-overview p {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 2rem;
  text-align: justify;
}

/* Guidelines Section */
.cfp-guidelines {
  padding: 5rem 0;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
}

.cfp-guidelines h2 {
  font-size: 3rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 800;
  position: relative;
}

.cfp-guidelines h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.guidelines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.guideline-card {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(30, 64, 175, 0.08);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.guideline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(30, 64, 175, 0.03), transparent);
  transition: left 0.6s ease;
}

.guideline-card:hover::before {
  left: 100%;
}

.guideline-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(30, 64, 175, 0.12);
}

.guideline-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.guideline-card h3 {
  font-size: 1.5rem;
  color: #1e40af;
  margin-bottom: 1rem;
  font-weight: 700;
}

.guideline-card p {
  color: #475569;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.guideline-link {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  padding: 12px 28px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
  box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

.guideline-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

/* Topics Section */
.cfp-topics {
  padding: 5rem 0;
  background: white;
}

.cfp-topics h2 {
  font-size: 3rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 2rem;
  font-weight: 800;
  position: relative;
}

.cfp-topics h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.topics-intro {
  text-align: center;
  font-size: 1.2rem;
  color: #475569;
  margin-bottom: 4rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.tracks-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 3rem;
}

.track-row {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.track-row:first-child .track-card {
  flex: 1;
  max-width: calc(33.33% - 1.33rem);
}

.track-row:last-child .track-card {
  flex: 1;
  max-width: calc(50% - 1rem);
}

.track-card {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(30, 64, 175, 0.06);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
  border-left: 4px solid #3b82f6;
}

.track-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(30, 64, 175, 0.1);
  border-left-color: #1e40af;
}

.track-title {
  color: #1e40af;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  position: relative;
}

.track-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.topics-list {
  list-style: none;
  padding: 0;
}

.topic-item {
  padding: 0.8rem 0;
  color: #475569;
  font-size: 1rem;
  border-bottom: 1px solid rgba(30, 64, 175, 0.1);
  position: relative;
  padding-left: 1.5rem;
  transition: all 0.3s ease;
}

.topic-item::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #3b82f6;
  font-weight: bold;
  transition: all 0.3s ease;
}

.topic-item:hover {
  color: #1e40af;
  padding-left: 2rem;
}

.topic-item:hover::before {
  color: #1e40af;
  transform: scale(1.2);
}

.topic-item:last-child {
  border-bottom: none;
}

.track-coming-soon {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(30, 64, 175, 0.05));
  border-left-color: #fbbf24;
  text-align: center;
}

.coming-soon-text {
  color: #475569;
  font-size: 1.1rem;
  line-height: 1.6;
  margin-top: 1rem;
}

/* Important Dates */
.cfp-dates {
  padding: 5rem 0;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
}

.cfp-dates h2 {
  font-size: 3rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 800;
  position: relative;
}

.cfp-dates h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.dates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.date-card {
  background: white;
  padding: 1.8rem;
  border-radius: 15px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  box-shadow: 0 6px 20px rgba(30, 64, 175, 0.06);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
  border-left: 4px solid #3b82f6;
}

.date-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(30, 64, 175, 0.1);
  border-left-color: #1e40af;
}

.date-icon {
  font-size: 2rem;
  color: #3b82f6;
  flex-shrink: 0;
}

.date-content h3 {
  color: #1e40af;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.date-content p {
  color: #475569;
  font-size: 1rem;
  font-weight: 500;
}

.dates-note {
  background: rgba(59, 130, 246, 0.1);
  padding: 1.5rem;
  border-radius: 12px;
  margin-top: 2rem;
  border-left: 4px solid #3b82f6;
}

.dates-note p {
  color: #1e40af;
  margin: 0;
  text-align: center;
  font-size: 1rem;
}

/* Contact Section */
.cfp-contact {
  padding: 5rem 0;
  background: white;
}

.cfp-contact h2 {
  font-size: 3rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 800;
  position: relative;
}

.cfp-contact h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.contact-card {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  padding: 3rem;
  border-radius: 20px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(30, 64, 175, 0.08);
  border: 1px solid #e2e8f0;
}

.contact-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: #3b82f6;
}

.contact-content h3 {
  color: #1e40af;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.contact-content p {
  color: #475569;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.contact-email {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  padding: 12px 28px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
  box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
  font-size: 1.1rem;
}

.contact-email:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

/* CTA Section */
.cfp-cta {
  padding: 5rem 0;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  text-align: center;
}

.cta-content h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 800;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.cta-content p {
  font-size: 1.3rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-button {
  padding: 16px 32px;
  text-decoration: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: all 0.3s ease;
  display: inline-block;
  min-width: 180px;
  text-align: center;
}

.cta-button.primary {
  background: white;
  color: #1e40af;
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-button.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(255, 255, 255, 0.4);
  background: #f8fafc;
}

.cta-button.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Venue Section Styles */
.venue-section {
  padding: 4rem 2rem;
  background: white;
  border-radius: 25px;
  box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
  border: 1px solid #e2e8f0;
  margin-bottom: 3rem;
}

.venue-title {
  font-size: 2.5rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 800;
  position: relative;
}

.venue-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.venue-content {
  max-width: 1000px;
  margin: 0 auto;
}

.venue-text {
  font-size: 1.15rem;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 2rem;
  text-align: justify;
}

.venue-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.venue-link-btn {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  padding: 14px 28px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
  font-size: 1rem;
  display: inline-block;
}

.venue-link-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

/* Superscript styling */
sup, .superscript {
  font-size: 0.6em !important;
  vertical-align: super !important;
  line-height: 0 !important;
  position: relative !important;
  top: -0.4em !important;
  font-weight: normal !important;
}

/* Footer Styles */
.footer {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: white;
  text-align: center;
  padding: 4rem 2rem 2rem;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #1e40af, #3b82f6, #60a5fa);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 25px;
  transition: all 0.3s ease;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links a:hover {
  color: white;
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-2px);
}

.footer p {
  opacity: 0.8;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Venue Section Styles */
.venue-section {
  padding: 4rem 2rem;
  background: white;
  border-radius: 25px;
  box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
  border: 1px solid #e2e8f0;
  margin-bottom: 3rem;
}

.venue-title {
  font-size: 2.5rem;
  color: #1e40af;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 800;
  position: relative;
}

.venue-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 2px;
}

.venue-content {
  max-width: 1000px;
  margin: 0 auto;
}

.venue-text {
  font-size: 1.15rem;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 2rem;
  text-align: justify;
}

.venue-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.venue-link-btn {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  padding: 14px 28px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
  font-size: 1rem;
  display: inline-block;
}

.venue-link-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

/* Superscript styling */
sup, .superscript {
  font-size: 0.6em !important;
  vertical-align: super !important;
  line-height: 0 !important;
  position: relative !important;
  top: -0.4em !important;
  font-weight: normal !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    height: auto;
    padding: 1rem;
    gap: 1rem;
  }

  .logo-container {
    width: 100%;
    justify-content: space-between;
  }

  .left-logo, .right-logo {
    height: 40px;
  }

  .nav-list {
    margin: 10px 0;
  }

  .landing-section-lower {
    flex-direction: column;
    text-align: center;
    padding: 3rem 2rem;
  }

  .countdown {
    gap: 1rem;
  }

  .countdown > div {
    min-width: 80px;
    padding: 1.5rem 1rem;
  }

  .countdown > div span:first-child {
    font-size: 2.2rem;
  }

  .grid-container {
    grid-template-columns: 1fr;
    margin: 1.5rem;
    padding: 2rem;
  }

  .right-panel {
    order: -1;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem;
  }

  .cfp-content-wrapper {
    padding: 0 1rem;
  }

  .cfp-hero {
    padding: 4rem 1rem 3rem;
  }

  .cfp-overview,
  .cfp-guidelines,
  .cfp-topics,
  .cfp-dates,
  .cfp-contact,
  .cfp-cta {
    padding: 3rem 0;
  }

  .guidelines-grid,
  .tracks-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .dates-grid {
    grid-template-columns: 1fr;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .track-card {
    padding: 2rem;
  }

  .tracks-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nav-list {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
  }
  
  .nav-list a {
    padding: 10px 20px;
    font-size: 0.9rem;
    text-align: center;
  }
  
  .landing-section-lower-body {
    font-size: 2.5rem;
  }
  
  .about-header-h1 {
    font-size: 2.8rem;
  }
  
  .about-content {
    padding: 2rem;
  }
  
  .section {
    padding: 2rem;
    margin-bottom: 2rem;
  }
  
  .cfp-hero-title {
    font-size: 2.5rem;
  }
  
  .cfp-conference-title {
    font-size: 1.3rem;
  }
  
  .cfp-overview h2,
  .cfp-guidelines h2,
  .cfp-topics h2,
  .cfp-dates h2,
  .cfp-contact h2 {
    font-size: 2.2rem;
  }
  
  .cta-content h2 {
    font-size: 2.2rem;
  }
  
  .guideline-card,
  .track-card,
  .contact-card {
    padding: 1.5rem;
  }
  
  .cfp-theme {
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .theme-text {
    font-size: 1rem;
  }
}