body {
  font-family: Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f9;
  color: #333;
}

header {
  background: linear-gradient(90deg, #264653, #2a9d8f);
  color: #fff;
  padding: 1.5rem 2rem;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

a {
  color: #2a9d8f;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
  font-weight: bold;
}

.container {
  max-width: 1200px;
  margin: 1rem auto;
  padding: 0 1rem;
}

.container .navigation {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.event-list {
  list-style: none;
  padding: 0;
  margin: 1rem;
}

.event {
  background: #fff;
  margin-bottom: 1.5rem;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.event-title {
  display: flex;
  justify-content: space-between;
}

.event-title .audience {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: #2a9d8f;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-size: 0.8rem;
  font-weight: bold;
  height: 1rem;
}

.event h2 {
  margin: 0 0 0.5rem;
  font-size: 1.8rem;
  color: #2a9d8f;
  font-weight: bold;
}

.event p {
  margin: 0.5rem 0;
  line-height: 1.6;
}

.event .date {
  font-weight: bold;
  color: #264653;
  font-size: 1rem;
}

.calendar {
  display: flex;
  flex-wrap: wrap;
}

.calendar ul {
  padding-left: 1rem;
}

.calendar .event {
  max-width: 315px;
  width: 100%;
  margin: 1rem 1rem;
}

.button-link {
  display: inline-block;
  margin-top: 1rem;
  margin-right: 1rem;
  padding: 0.6rem 1.2rem;
  background: #e76f51;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: bold;
  transition: background 0.3s;
}

.button-link:hover {
  background: #d9534f;
}

footer {
  text-align: center;
  padding: 1.5rem;
  background: linear-gradient(90deg, #264653, #2a9d8f);
  color: #fff;
  margin-top: 2rem;
  box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
}

footer p {
  margin: 0;
  font-size: 1rem;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }

  .event h2 {
    font-size: 1.5rem;
  }

  .details-link {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
  }
}

#year_selector {
  color: #2a9d8f; 
  font-weight: bold;
}