#calendar-controls {
  text-align: center;
  margin-bottom: 20px;
}

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

th,
td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: center;
}

th {
  background-color: #f2f2f2;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background-color: #f2f2f2;
}

nav {
  background: #333;
  height: 80px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 50px 0 100px;
}

nav .logo {
  color: #fff;
  font-size: 30px;
  font-weight: 600;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin: 0 10px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  padding: 7px 13px;
  border-radius: 3px;
  transition: all 0.3s ease;
}

nav ul li a:hover {
  background: #575757;
}

.menu-btn {
  display: none;
}

.form-container {
  max-width: 400px;
  margin: 100px auto;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.form-container h2 {
  margin-bottom: 20px;
}

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

.form-container input {
  margin-bottom: 15px;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.form-container button {
  padding: 10px;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  background-color: #333;
  color: white;
  cursor: pointer;
  transition: background 0.3s ease;
}

.form-container button:hover {
  background-color: #575757;
}

.error {
  color: red;
  margin-bottom: 15px;
}

@media (max-width: 1000px) {
  nav {
      padding: 0 40px 0 50px;
  }
}

@media (max-width: 920px) {
  .menu-btn {
      display: block;
      color: #fff;
      font-size: 22px;
      cursor: pointer;
  }

  #click {
      display: none;
  }

  nav ul {
      position: fixed;
      top: 80px;
      left: -100%;
      background: #333;
      height: 100vh;
      width: 100%;
      text-align: center;
      display: flex;
      flex-direction: column;
      transition: all 0.5s ease;
  }

  #click:checked + .menu-btn + ul {
      left: 0;
  }

  nav ul li {
      margin: 50px 0;
  }

  nav ul li a {
      font-size: 20px;
  }
}