* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: radial-gradient(
    ellipse at top,
    #1a1a2e 0%,
    #16213e 25%,
    #0f0f23 100%
  );
  color: #fff;
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  padding: 40px 0 20px;
  position: relative;
}

.back-btn {
  position: absolute;
  left: 20px;
  top: 50px;
  color: #4cc9f0;
  text-decoration: none;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.back-btn:hover {
  color: #f72585;
  transform: translateX(-5px);
}

.logo {
  font-size: 3.5rem;
  margin-bottom: 15px;
  color: #4cc9f0;
  text-shadow: 0 0 10px rgba(76, 201, 240, 0.5);
}

h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
  background: linear-gradient(to right, #4cc9f0, #f72585);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.event-info {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 20px 0 30px;
  flex-wrap: wrap;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 1rem;
}

.info-item i {
  color: #4cc9f0;
}

.event-description {
  max-width: 800px;
  margin: 0 auto 40px;
  text-align: center;
  line-height: 1.6;
  color: #a9b7c6;
  font-size: 1.1rem;
}

.gallery {
  margin: 40px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  grid-gap: 20px;
}

.grid-item {
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background: #1a1a2e;
}

.grid-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.grid-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

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

footer {
  text-align: center;
  padding: 30px 0;
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #a9b7c6;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 20px 0;
}

.social-links a {
  color: #a9b7c6;
  font-size: 1.5rem;
  transition: color 0.3s;
}

.social-links a:hover {
  color: #4cc9f0;
}

@media (max-width: 768px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }

  h1 {
    font-size: 2.2rem;
  }

  .logo {
    font-size: 2.8rem;
  }

  .back-btn {
    position: relative;
    left: 0;
    top: 0;
    justify-content: center;
    margin-bottom: 20px;
  }
}

@media (max-width: 480px) {
  .grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 1.8rem;
  }

  .logo {
    font-size: 2.2rem;
  }

  .event-info {
    flex-direction: column;
    align-items: center;
  }
}