body {
  font-family: 'Segoe UI', sans-serif;
  background: url('https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Comillas_Ruiloba_Costa_Quebrada.jpg/800px-Comillas_Ruiloba_Costa_Quebrada.jpg') no-repeat center center fixed;
  background-size: cover;
  margin: 0;
  padding: 0;
  color: #333;
}

main {
  max-width: 600px;
  margin: auto;
  background: rgba(255, 255, 255, 0.9);
  padding: 2rem;
  margin-top: 5vh;
  border-radius: 12px;
}

h1, h2 {
  text-align: center;
  color: #264653;
}

input, button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid #ccc;
}

button {
  background-color: #2a9d8f;
  color: white;
  font-weight: bold;
  border: none;
  cursor: pointer;
}

button:hover {
  background-color: #21867a;
}

#calendario {
  border: 2px solid black;
  border-radius: 8px;
  background-color: white;
  padding: 10px;
}

.caja-reservas {
  border: 2px solid black;
  padding: 10px;
  margin-top: 20px;
  border-radius: 8px;
  background-color: #f8f8f8;
}

.navbar {
  background-color: #f5f5f5;
  border-bottom: 2px solid black;
  padding: 15px 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 999;
}

.navbar__center {
  font-size: 1.5rem;
  font-weight: bold;
  flex: 1;
  text-align: center;
}

.navbar__logout {
  position: absolute;
  right: 20px;
  padding: 8px 12px;
  background-color: black;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 4px;
}

.navbar__logout:hover {
  background-color: #333;
}