body {
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #f4f6f8;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  padding: 0;
}

.header {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 800px;
  margin-top: 30px;
  position: relative;
}

.title {
  font-size: 6rem;
  font-weight: bold;
  margin: 0;
}

.logo {
  position: absolute;
  left: 0;
  height: 100px;
}

.subtitle {
  font-size: 3rem;
  color: #666;
  margin-bottom: 20px;
}

.presentation {
  font-size: 1rem;
  color: #666;
  margin-bottom: 20px;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 800px;
  text-align: center;
}

label {
  display: block;
  margin-top: 15px;
  color: #444;
  font-weight: 600;
}

select, button {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 16px;
  text-align-last: center;
}

button {
  background-color: #007bff;
  color: white;
  border: none;
  margin-top: 20px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background-color: #0056b3;
}

#calendar {
  margin-top: 30px;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid #ddd;
  background-color: #fafafa;
  margin-top: 10px;
  table-layout: fixed;
}

th, td {
  padding: 12px;
  border: 1px solid #ddd;
  text-align: center;
  font-size: 14px;
  width: 14.28%;
}

th {
  background-color: #007bff;
  color: white;
  font-weight: 600;
}