body {
  font-family: 'Roboto', sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}

header {
  background: url('https://images.unsplash.com/photo-1591951425600-d09958978584?q=80&w=1170&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D') no-repeat center center/cover;
  color: #41aea0;
  padding: 60px 20px;
  text-align: center;
}

h1 {
  margin: 0;
  font-size: 2.7rem;
  text-shadow:
    -1px -1px 0 black,
     1px -1px 0 black,
    -1px  1px 0 black,
     1px  1px 0 black;
}

main {
  padding: 20px;
  max-width: 800px;
  margin: auto;
}

button {
  background: #43ab9d;
  color: white;
  font-size: 1rem;
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 10px;
}

button:hover {
  background: #135b52;
}

form {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}

input, textarea {
  width: 100%;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1em;
}

.book-card {
  background: white;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.book-card h3 {
  margin-top: 0;
}

#edit-form-container {
  margin-top: 20px;
}