.yearbook-viewer {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  inset: 0;
  z-index: 1050;
  background-color: #f8f9fa;
  width: 100vw;
  height: 100vh;
}

.yearbook-viewer[hidden] {
  display: none !important;
}

.yearbook-viewer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background-color: #fff;
  border-bottom: 1px solid #dee2e6;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.yearbook-viewer__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: #212529;
}

.yearbook-viewer__close {
  background-color: #dc3545;
  color: #fff;
  border: none;
  padding: 6px 16px;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.yearbook-viewer__close:hover {
  background-color: #c82333;
}

.yearbook-viewer__frame {
  flex: 1;
  width: 100%;
  height: 100%;
  border: none;
  background-color: #ebecf0;
}