:root {
  --primary-blue: #2563eb;
  --primary-transparent: #2564eb88;
  --secondary-blue: #1e40af;
  --secondary-transparent: #1e40af88;
  --accent-green: #10b981;
  --light-blue: #dbeafe;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-600: #4b5563;
  --gray-800: #1f2937;
  --gray-900: #111827;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--gray-800);
  overflow-x: hidden;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(37, 99, 235, 0.1);
}

.header.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  text-decoration: none;
}

.logo i {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  text-decoration: none;
  color: var(--gray-600);
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--primary-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-blue);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.cta-button {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-transparent) 0%, var(--secondary-transparent) 100%);
  overflow: hidden;
}

.hero-content {
  text-align: center;
  color: white;
  z-index: 2;
  max-width: 800px;
  padding: 0 2rem;
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeInUp 1s ease forwards 0.5s;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  opacity: 0;
  animation: fadeInUp 1s ease forwards 0.7s;
}

.hero-date {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  border-radius: 50px;
  margin-bottom: 2rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
  opacity: 0;
  animation: fadeInUp 1s ease forwards 0.9s;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 1s ease forwards 1.1s;
}

.btn-primary {
  background: white;
  color: var(--primary-blue);
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: transparent;
  color: white;
  padding: 1rem 2rem;
  border: 2px solid white;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: white;
  color: var(--primary-blue);
  transform: translateY(-3px);
}

/* Hero Background & Slider */
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-slider {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.hero-slider .slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}

.hero-slider .slide.active {
  opacity: 1;
}

.hero-slider .slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-transparent) 0%, var(--secondary-transparent) 100%);
  z-index: 2;
}

/* Section Styles */
.section {
  padding: 5rem 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* About Section */
.about {
  background: var(--gray-50);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text {
  font-size: 1.125rem;
  line-height: 1.8;
}

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

.stat-card {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  display: block;
}

.stat-label {
  color: var(--gray-600);
  font-weight: 500;
}

/* Program Section */
.program-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
  background: var(--gray-100);
  border-radius: 50px;
  padding: 0.5rem;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.tab-button {
  background: transparent;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.tab-button.active {
  background: var(--primary-blue);
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.program-day {
  display: none;
}

.program-day.active {
  display: block;
}

.session-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border-left: 4px solid var(--primary-blue);
  transition: all 0.3s ease;
}

.session-card:hover {
  transform: translateX(10px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.session-card.special-event {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-left: 4px solid var(--accent-green);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.session-card.special-event::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(30, 64, 175, 0.2));
  pointer-events: none;
  z-index: -1;
}

.session-card.special-event .session-time {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.session-time {
  background: var(--light-blue);
  color: var(--primary-blue);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 1rem;
}

.session-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.session-speaker {
  color: var(--gray-600);
  font-weight: 500;
}

.pricing-info {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 2rem;
  margin-bottom: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.price-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.price {
  font-size: 1.5rem;
  font-weight: 700;
}

/* Speakers Section */
.speakers {
  background: var(--gray-50);
}

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

.speaker-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.speaker-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.speaker-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-green));
}

.speaker-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--light-blue), var(--gray-100));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary-blue);
  overflow: hidden;
  position: relative;
}

.speaker-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  object-position: center 20%;
}

.speaker-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.speaker-title {
  color: var(--primary-blue);
  font-weight: 600;
  margin-bottom: 1rem;
}

.speaker-bio {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
}

.gala-venue {
  border-left: 4px solid var(--accent-green) !important;
}

/* Gala Card Responsive Layout */
.session-card .gala-content {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin: 1rem 0;
}

.session-card .gala-info {
  flex: 1;
}

.session-card .gala-image {
  flex: 0 0 300px;
}

.session-card .gala-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Mobile responsive for gala card */
@media (max-width: 768px) {
  .session-card .gala-content {
    flex-direction: column;
  }
  
  .session-card .gala-image {
    flex: none;
    order: 2;
  }
  
  .session-card .gala-info {
    order: 1;
  }
}

/* Video Gallery Section */
.video-gallery {
  background: var(--gray-50);
}

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

.video-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.video-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.video-thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.video-card:hover .video-thumbnail img {
  transform: scale(1.05);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-blue);
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.video-card:hover .play-button {
  background: white;
  transform: translate(-50%, -50%) scale(1.1);
}

.video-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 1.5rem 0.5rem;
  color: var(--gray-900);
}

.video-description {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0 1.5rem 1.5rem;
}

.video-cta {
  text-align: center;
}

.video-cta .btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.video-cta .btn-primary:hover {
  color: white;
}

/* Registration Section */
.registration {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: white;
}

.registration .section-title,
.registration .section-subtitle {
  color: white;
}

.registration-form {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 3rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-input,
.form-select {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  padding: 1rem;
  color: white;
  font-size: 1rem;
  backdrop-filter: blur(5px);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
}

/* Custom Glassmorphism Select Dropdown */
.custom-select {
  position: relative;
  display: inline-block;
  width: 100%;
}

.custom-select .select-button {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  padding: 1rem;
  color: white;
  font-size: 1rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  width: 100%;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.custom-select .select-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.custom-select .select-button:hover::before {
  opacity: 1;
}

.custom-select .select-button:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
}

.custom-select .select-button.open {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(15px);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
}

.custom-select .select-arrow {
  transition: transform 0.3s ease;
  color: rgba(255, 255, 255, 0.8);
}

.custom-select .select-button.open .select-arrow {
  transform: rotate(180deg);
}

.custom-select .select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(139, 139, 139, 0.582);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 10px;
  margin-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.95);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  max-height: 200px;
  overflow-y: auto;
}

.custom-select .select-dropdown::-webkit-scrollbar {
  width: 6px;
}

.custom-select .select-dropdown::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.custom-select .select-dropdown::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

.custom-select .select-dropdown::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.678);
}

.custom-select .select-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.custom-select .select-option {
  padding: 0.75rem 1rem;
  color: white;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
  font-weight: 500;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.custom-select .select-option::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.custom-select .select-option:hover::before {
  left: 100%;
}

.custom-select .select-option:last-child {
  border-bottom: none;
}

.custom-select .select-option:hover {
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transform: translateX(5px);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
}

.custom-select .select-option.selected {
  background: rgba(16, 185, 129, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 3px solid var(--accent-green);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
  font-weight: 600;
}

.custom-select .select-option:first-child {
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}

.custom-select .select-option:last-child {
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}

/* Hide original select elements when using custom dropdowns */
.form-select.hidden {
  display: none;
}

/* Enhanced glassmorphism for remaining native selects */
.form-select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1rem;
  padding-right: 3rem;
}

.form-select option {
  background: rgba(37, 99, 235, 0.95);
  color: white;
  padding: 0.75rem;
  border: none;
}

.workshops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.workshop-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 10px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.workshop-checkbox:hover {
  background: rgba(255, 255, 255, 0.15);
}

.workshop-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
}

.submit-button {
  background: white;
  color: var(--primary-blue);
  border: none;
  padding: 1rem 3rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* Location Section */
.location-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.map-container {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  border: none;
}

.hotels-list {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.hotel-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.hotel-item.main-venue {
  background: var(--light-blue);
  border-radius: 15px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 2px solid var(--primary-blue);
}

.hotel-item.main-venue .hotel-info h4 {
  color: var(--primary-blue);
  font-size: 1.25rem;
}

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

.hotel-info h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.hotel-distance {
  color: var(--gray-600);
  font-size: 0.9rem;
}

.hotel-rating {
  color: var(--accent-green);
}

/* Sponsors Section */
.sponsors {
  background: var(--gray-50);
}

.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  align-items: center;
}

.sponsor-logo {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  cursor: pointer;
}

.sponsor-logo:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.sponsor-logo img {
  max-width: 100%;
  height: 60px;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}

.sponsor-logo:hover img {
  filter: grayscale(0%);
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--accent-green);
}

.footer-section p,
.footer-section a {
  color: var(--gray-300);
  text-decoration: none;
  line-height: 1.8;
}

.footer-section a:hover {
  color: white;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  justify-self: center;
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--accent-green);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: 2rem;
  text-align: center;
  color: var(--gray-400);
}

/* Animations */
@keyframes fadeInUp {
  from {
      opacity: 0;
      transform: translateY(30px);
  }
  to {
      opacity: 1;
      transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

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

/* Mobile Menu */
.mobile-menu-button {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-blue);
  cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
      display: none;
  }

  .mobile-menu-button {
      display: block;
  }

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

  .about-content,
  .location-content {
      grid-template-columns: 1fr;
      gap: 2rem;
  }

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

  .program-tabs {
      flex-direction: column;
      align-items: stretch;
      gap: 0.5rem;
  }

  .tab-button {
      padding: 1rem;
      font-size: 1rem;
  }

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

  .registration-form {
      padding: 2rem;
  }

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

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

@media (max-width: 480px) {
  .container {
      padding: 0 1rem;
  }

  .hero-content {
      padding: 0 1rem;
  }

  .section {
      padding: 3rem 0;
  }
}

/* Gallery Section */
.gallery {
  background: var(--gray-50);
}

/* Gallery Tabs */
.gallery-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
  background: var(--gray-100);
  border-radius: 50px;
  padding: 0.5rem;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.gallery-tab-button {
  background: transparent;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  color: var(--gray-600);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.gallery-tab-button.active {
  background: var(--primary-blue);
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.gallery-tab-button:hover:not(.active) {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-blue);
}

/* Gallery Tab Content */
.gallery-tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.gallery-tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Photo Gallery */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.photo-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.photo-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.photo-thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.photo-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.photo-card:hover .photo-thumbnail img {
  transform: scale(1.05);
}

.photo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease;
  cursor: pointer;
}

.photo-card:hover .photo-overlay {
  opacity: 1;
}

.photo-overlay i {
  font-size: 2rem;
  color: white;
  transition: transform 0.3s ease;
}

.photo-overlay:hover i {
  transform: scale(1.1);
}

.photo-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 1.5rem 0.5rem;
  color: var(--gray-900);
}

.photo-description {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0 1.5rem 1.5rem;
}

.gallery-cta {
  text-align: center;
}

.gallery-cta .btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Fullscreen Modals */
.fullscreen-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  backdrop-filter: blur(10px);
  animation: modalFadeIn 0.3s ease;
}

.fullscreen-modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Modal Close Button */
.modal-close-btn {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10001;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

/* Fullscreen Photo */
.fullscreen-photo-container {
  position: relative;
  max-width: 95vw;
  max-height: 95vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.fullscreen-photo {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: photoZoomIn 0.4s ease;
}

@keyframes photoZoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.photo-info-overlay {
  position: absolute;
  bottom: -80px;
  left: 0;
  right: 0;
  text-align: center;
  color: white;
  padding: 1rem 2rem;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(15px);
  border-radius: 15px;
  margin: 0 auto;
  max-width: 600px;
  animation: infoSlideUp 0.5s ease 0.2s both;
}

@keyframes infoSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.photo-info-overlay h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: white;
}

.photo-info-overlay p {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

/* Fullscreen Video */
.fullscreen-video-container {
  position: relative;
  width: 95vw;
  height: 95vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.fullscreen-video {
  width: 100%;
  height: auto;
  max-height: 85vh;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: videoZoomIn 0.4s ease;
}

@keyframes videoZoomIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.video-info-overlay {
  position: absolute;
  bottom: -80px;
  left: 0;
  right: 0;
  text-align: center;
  color: white;
  padding: 1rem 2rem;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(15px);
  border-radius: 15px;
  margin: 0 auto;
  max-width: 600px;
  animation: infoSlideUp 0.5s ease 0.2s both;
}

.video-info-overlay h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: white;
}

.video-info-overlay p {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

/* Mobile responsive for fullscreen modals */
@media (max-width: 768px) {
  .modal-close-btn {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  .fullscreen-photo-container,
  .fullscreen-video-container {
    width: 98vw;
    height: 98vh;
  }
  
  .fullscreen-photo {
    max-height: 80vh;
  }
  
  .fullscreen-video {
    max-height: 80vh;
  }
  
  .photo-info-overlay,
  .video-info-overlay {
    bottom: -60px;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }
  
  .photo-info-overlay h3,
  .video-info-overlay h3 {
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .photo-info-overlay,
  .video-info-overlay {
    position: relative;
    bottom: auto;
    margin-top: 1rem;
    max-width: 90vw;
  }
}

.gallery-cta .btn-primary:hover {
  color: white;
}

/* Responsive adjustments for gallery */
@media (max-width: 768px) {
  .gallery-tabs {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  
  .gallery-tab-button {
    padding: 1rem;
    font-size: 1rem;
    justify-content: center;
  }
  
  .photo-grid,
  .video-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .photo-grid,
  .video-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}