.header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.header-left {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.header-row h1 {
  margin: 0;
  line-height: 1;
}

.controls {
  display: flex;
  gap: 8px;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 6px;
  margin: -6px;
  box-sizing: content-box;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
  line-height: 1;
}

.header-btn:hover {
  background: var(--toggle-hover);
  color: var(--text-primary);
}

.header-btn:active {
  background: var(--toggle-hover);
  transform: scale(1.0);
}

.header-btn svg {
  width: 28px;
  height: 28px;
  pointer-events: none;
}

#toc-button svg {
  transform: rotate(180deg);
}

.toc-modal-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-modal-link {
  display: block;
  padding: 10px 12px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  border-radius: 4px;
  transition: background 0.15s ease, transform 0.15s ease;
  transform-origin: left center;
}

.toc-modal-link:hover {
  background: var(--toggle-hover);
}

/* Menu Modal */
.menu-modal-controls {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 20px;
}

.menu-modal-control {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.95rem;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.menu-modal-control:hover {
  background: var(--bg-card);
  transform: scale(1.0);
}

.menu-modal-control:hover .menu-modal-icon {
  transform: scale(1.1);
}

.menu-modal-control:active {
  transform: scale(0.98);
}

.menu-modal-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.menu-modal-icon svg {
  width: 100%;
  height: 100%;
}

.menu-modal-label {
  flex: 1;
}

.menu-modal-section {
  margin-bottom: 20px;
}

.menu-modal-section h4 {
  margin: 0 0 12px 0;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.menu-modal-themes {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.menu-modal-theme {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border-muted);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.1s ease, background 0.1s ease;
}

.menu-modal-theme:hover {
  background: var(--bg-card);
}

.menu-modal-theme.selected {
  border-color: var(--accent);
  background: rgba(37, 99, 235, 0.08);
}

.menu-modal-theme input[type="radio"] {
  margin: 0;
  accent-color: var(--accent);
}

.menu-modal-theme-name {
  font-weight: 500;
  color: var(--text-primary);
}

.menu-modal-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.menu-modal-checkbox input[type="checkbox"] {
  margin: 0;
  accent-color: var(--accent);
}

.menu-modal-footer {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-muted);
}

.menu-modal-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}

.menu-modal-link-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity 0.15s ease;
}

.menu-modal-link:hover {
  color: var(--accent);
}

.menu-modal-link:hover .menu-modal-link-icon {
  opacity: 1;
}

.menu-modal-link-icon svg {
  width: 100%;
  height: 100%;
}