body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
  padding: 0;
  background-image: url(img/prod.jpg);
  background-size: cover;
  background-attachment: fixed;
  overflow-y: scroll;
}

.up-container {
  margin-top: 90px;
  width: 80%;
  margin: 0 auto;
  text-align: center;
}

header {
  margin-bottom: 40px;
}

h1 {
  font-size: 36px;
  color: #ffffff;
}

p {
  font-size: 18px;
  color: #ffffff;
}

.calendar {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin-top: 150px;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background-color: #2c3e50;
  color: #fff;
}

.calendar-header .month-year {
  font-size: 24px;
}

.day-names,
.days {
  display: flex;
  flex-wrap: wrap;
}

.day-names div,
.days div {
  width: calc(100% / 7);
  padding: 15px 0;
  text-align: center;
}

.day-names div {
  background-color: #ecf0f1;
  font-weight: bold;
}

.days div {
  background-color: #fff;
  border: 1px solid #ecf0f1;
  cursor: pointer;
  transition: background-color 0.3s;
}

.days div:hover {
  background-color: #bdc3c7;
}

.days .event-day {
  background-color: #2ecc71;
  color: #fff;
  position: relative;
}

.days .event-day::after {
  content: '●';
  position: absolute;
  bottom: 5px;
  right: 5px;
  font-size: 12px;
  color: #e74c3c;
}

.event-details {
  margin-top: 20px;
  background-color: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  display: none;
}

.event-details h2 {
  font-size: 28px;
  color: #2c3e50;
}

.event-details p {
  font-size: 16px;
  color: #7f8c8d;
}

.event-details .register-btn {
  background-color: #3498db;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 5px;
  display: inline-block;
  margin-top: 20px;
}