⠀ ⠀ ⠀⠀ ⠀ ⠀⠀ ⠀ ⠀⠀ ⠀ ⠀⠀ ⠀ ⠀♥

body {
  background: #fdf2f8;
  color: #4a3b5c;
  line-height: 1.6;
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  text-align: center;
  font-size: 2rem;
  margin: 20px 0;
  color: #6b5b95;
  letter-spacing: 2px;
}

.divider {
  text-align: center;
  color: #b8a9c9;
  margin: 10px 0 30px;
}

.toc-container {
  background: #fff;
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(107, 91, 149, 0.1);
  margin-bottom: 40px;
}

.toc-container h2 {
  text-align: center;
  color: #6b5b95;
  margin-bottom: 25px;
  font-size: 1.5rem;
}

.toc-item {
  display: block;
  padding: 12px 20px;
  margin: 10px 0;
  background: #f8f0f7;
  border-radius: 12px;
  color: #6b5b95;
  text-decoration: none;
  transition: all 0.25s;
}

.toc-item:hover {
  background: #f0e4f5;
  transform: translateX(5px);
}

.toc-item:nth-child(2) {
  background: #e8f5e9;
  color: #2e7d32;
}

.toggle-section {
  margin: 20px 0;
}

.paper-bubble {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 12px rgba(107, 91, 149, 0.08);
  margin-bottom: 15px;
}

.toggle-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-weight: 500;
  color: #6b5b95;
}

.toggle-checkbox {
  display: none;
}

.toggle-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s;
  padding: 0 10px;
}

.toggle-checkbox:checked ~ .toggle-content {
  max-height: 2000px;
  padding: 15px 10px 5px;
}

.content-block {
  background: #faf7fc;
  border-radius: 10px;
  padding: 15px;
  margin: 10px 0;
}

.back-toc {
  display: inline-block;
  margin-top: 20px;
  color: #6b5b95;
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px dashed #b8a9c9;
}

.back-toc:hover {
  color: #4a3b7a;
}

[contenteditable="true"] {
  border-bottom: 1px dashed #b8a9c9;
  outline: none;
  padding: 2px 4px;
  transition: all 0.2s;
}

[contenteditable="true"]:focus {
  background: #f3e5f5;
  border-radius: 4px;
}