body {
  min-height: 200vh;
  font-family: Arial, sans-serif;
}

/* Wrapper */
.floating-book {
  position: fixed;
  right: 0;
  top: 20%;
  z-index: 9997;
  display: flex;
  align-items: center;
}

/* Book vertical tab */
.book-tab {
  background: #604233;
  color: #fff;
  padding: 14px 10px;
  cursor: pointer;
  border-radius: 8px 0 0 8px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.book-tab i {
  transform: rotate(90deg);
}

/* Panel */
.book-panel {
  width: 0;
  overflow: hidden;
  background: #ffffff;
  box-shadow: -5px 0 15px rgba(0,0,0,0.15);
  border-radius: 8px 0 0 8px;
  transition: width 0.35s ease;
}

/* Open state */
.book-panel.open {
  width: 240px;
}

/* Links */
.book-panel a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  text-decoration: none;
  color: #604233;
  font-size: 15px;
  border-bottom: 1px solid #eee;
}

.book-panel a:hover {
  background: #f2f7ff;
}

.book-panel i {
  font-size: 16px;
}

@media screen and (max-width: 768px) { 
.floating-book {
  position: fixed;
  right: 0;
  top: 20%;
  z-index: 1000;
  display: flex;
  align-items: center;
}