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

body {
  font-family: "Signika Negative", cursive;
  font-optical-sizing: auto;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow-x: hidden;
  cursor: none;
}

/* Custom Cursor */
.cursor {
  width: 24px;
  height: 24px;
  border: 3px solid #feca57;
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  transition: transform 0.1s ease, opacity 0.2s ease;
  box-shadow: 0 0 15px rgba(254, 202, 87, 0.7), 0 0 30px rgba(254, 202, 87, 0.3);
}

.cursor-follower {
  width: 50px;
  height: 50px;
  background: radial-gradient(circle, rgba(254, 202, 87, 0.3), transparent);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.cursor.active, .cursor-follower.active {
  transform: scale(1.8);
  opacity: 0.8;
}

/* Trail effect for cursor */
.cursor-trail {
  width: 10px;
  height: 10px;
  background: rgba(254, 202, 87, 0.4);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9997;
  transition: transform 0.5s ease, opacity 0.5s ease;
  opacity: 0;
}

/* 3D Animation Background */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.floating-shape {
  position: absolute;
  animation: float 6s ease-in-out infinite;
  opacity: 0.15;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

.shape-cube {
  width: 90px;
  height: 90px;
  background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
  transform: rotateX(45deg) rotateY(45deg);
  animation: rotate3d 8s linear infinite;
}

.shape-sphere {
  width: 70px;
  height: 70px;
  background: radial-gradient(circle, #feca57, #ff9ff3);
  border-radius: 50%;
  animation: pulse 4s ease-in-out infinite;
}

.shape-triangle {
  width: 0;
  height: 0;
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-bottom: 80px solid #54a0ff;
  animation: spin 10s linear infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotateZ(0deg); }
  50% { transform: translateY(-30px) rotateZ(180deg); }
}

@keyframes rotate3d {
  0% { transform: rotateX(45deg) rotateY(45deg) rotateZ(0deg); }
  100% { transform: rotateX(45deg) rotateY(45deg) rotateZ(360deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.4); }
}

@keyframes spin {
  0% { transform: rotateZ(0deg); }
  100% { transform: rotateZ(360deg); }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

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

.nav-links a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a:hover {
  transform: translateY(-2px);
  text-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: #feca57;
  transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background: linear-gradient(62deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
  overflow: hidden;
}

/* Sparkle Wave Effect */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
90deg,
transparent,
rgba(255, 255, 255, 0.3),
transparent
  );
  animation: sparkleWave 5s linear infinite;
  z-index: 1;
}

/* ParticlesJS container */
#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 0;
}

@keyframes gradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

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

.hero-content {
  z-index: 10;
  color: #fff;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-shadow: 3px 3px 6px rgba(0,0,0,0.4);
  animation: glow 2s ease-in-out infinite alternate;
}

.hero h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-info {
  font-size: 1.3rem;
  margin-bottom: 3rem;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: #fff;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  background: linear-gradient(45deg, #5a67d8, #6b46c1);
}

.btn:hover::before {
  left: 100%;
}

@keyframes fadeInUp {
  from {
opacity: 0;
transform: translateY(80px);
  }
  to {
opacity: 1;
transform: translateY(0);
  }
}

@keyframes glow {
  from { text-shadow: 3px 3px 6px rgba(0,0,0,0.4), 0 0 20px rgba(255,255,255,0.3); }
  to { text-shadow: 3px 3px 6px rgba(0,0,0,0.4), 0 0 40px rgba(255,255,255,0.6); }
}

/* Sections */
.section {
  padding: 6rem 2rem;
  position: relative;
}

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

.section-title {
  font-size: 3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(255,107,107,0.1), rgba(78,205,196,0.1));
  z-index: -1;
  transition: opacity 0.3s ease;
  opacity: 0;
}

.card:hover {
  transform: translateY(-10px) rotateX(5deg) scale(1.05);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.card p, .card li {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  font-size: 1.1rem;
}

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

.card li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.5rem;
}

.card li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: #feca57;
  font-weight: bold;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background: linear-gradient(to bottom, #ff6b6b, #4ecdc4);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
  border-radius: 2px;
}

.timeline-item {
  padding: 2rem 0;
  position: relative;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 3rem;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 3rem;
}

.timeline-content {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: 15px;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.timeline-content:hover {
  transform: scale(1.05);
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}

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

.timeline-content p {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

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

.committee-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.committee-card:hover {
  transform: translateY(-5px) rotateY(5deg);
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}

.committee-card h4 {
  color: #feca57;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.committee-card h5 {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.committee-card p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1rem;
}

/* Program Schedule */
.schedule-table {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.schedule-table table {
  width: 100%;
  border-collapse: collapse;
}

.schedule-table th,
.schedule-table td {
  padding: 1.5rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.schedule-table th {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.schedule-table td {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

.schedule-table tr:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  padding: 3rem 2rem 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
}

.footer h3 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Scroll Animation */
.fade-in {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .hero h2 { font-size: 1.5rem; }
  .nav-links { display: none; }
  .timeline-item { width: 100%; left: 0 !important; padding: 1rem 0 !important; }
  .timeline::after { left: 20px; }
  .cta-buttons { flex-direction: column; align-items: center; }
}

/* Language Selector */
.language-selector {
  position: relative;
  z-index: 1000;
}

.language-selector select {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  padding: 0.5rem 1rem;
  font-family: "Signika Negative", cursive;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23fff' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem top 50%;
  padding-right: 2rem;
}

.language-selector select:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.language-selector select:focus {
  outline: none;
  border-color: #feca57;
  box-shadow: 0 0 10px rgba(254, 202, 87, 0.5);
  background-color: rgba(0, 0, 0, 0.3);;
}

@media (max-width: 768px) {
  .language-selector {
    margin-top: 1rem;
  }
  .language-selector select {
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
  }
}