.notebook-sheet {
  max-width: 980px;
  margin: 18px auto 40px;
  position: relative;
  padding-left: 64px;
  z-index: 3;
}

.paper {
  background: var(--paper-bg, #fffef9);
  border-radius: 12px;
  padding: 18px 22px 26px;
  box-shadow: 0 14px 40px rgba(10,20,40,0.06);
  position: relative;
  overflow: hidden;
  min-height: 500px;
}

.left-margin {
  position: absolute;
  left: calc(var(--notebook-left, 92px) - 12px);
  top: 160px;
  bottom: 26px;
  width: 4px;
  background: var(--margin-red, #e24a3a);
  border-radius: 2px;
}

.lines-wrapper {
  position: relative;
  margin-top: 8px;
  padding-left: calc(var(--notebook-left, 92px) + 6px);
  min-height: 420px;
}

.lines-container {
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent calc(var(--line-height, 44px) - 1px),
    var(--rule-blue, #d7ecff) calc(var(--line-height, 44px) - 1px),
    var(--rule-blue, #d7ecff) calc(var(--line-height, 44px))
  );
  background-size: 100% var(--line-height, 44px);
  min-height: 360px;
  padding: 12px 10px;
  border-radius: 6px;
}

.title-inline {
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 700;
}

.title-inline:focus {
  outline: none;
  border-bottom: 1px dashed #ddd;
}

.page-total-display {
  margin-top: 20px;
  padding: 15px 20px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 8px;
  border: 2px solid #dee2e6;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-total-display .label {
  font-weight: 600;
  color: #495057;
  font-size: 1.1rem;
}

.page-total-display .amount {
  font-weight: 700;
  color: #198754;
  font-size: 1.5rem;
  font-family: 'Courier New', monospace;
}

@media (max-width: 991px) {
  .notebook-sheet { padding-left: 24px; }
  .left-margin { left: 54px; }
  .lines-container { min-height: 260px; }
}