/* ===================== NOTES DASHBOARD ===================== */
.notes-container {
  padding: var(--space-md);
  min-height: 100%;
}

.notes-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding: var(--space-sm) 0;
  border-bottom: 2px solid var(--border-grid);
}

.notes-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.new-note-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--accent-gold-solid);
  color: #fff;
  font-weight: 600;
  font-size: var(--font-size-sm);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.new-note-btn:hover {
  background: var(--accent-gold);
}

.new-note-btn:active {
  transform: scale(0.98);
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.note-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-grid);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.note-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-gold-solid);
}

.note-thumbnail {
  width: 100%;
  aspect-ratio: 4/3;
  background: #FFFDF8;
  object-fit: cover;
  border-bottom: 1px solid var(--border-light);
}

.note-meta {
  padding: var(--space-sm);
}

.note-timestamp {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
}

/* ===================== CANVAS OVERLAY ===================== */
.notes-canvas-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  transition: opacity var(--transition-normal);
}

.notes-canvas-overlay.hidden {
  display: none;
  opacity: 0;
}

.canvas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-header);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.canvas-title {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-header);
}

.canvas-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.canvas-btn-cancel:hover {
  background: rgba(231, 76, 60, 0.2);
  color: #ff6b5a;
}

.canvas-btn-save:hover {
  background: rgba(201, 168, 76, 0.2);
  color: var(--accent-gold);
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-grid);
  flex-shrink: 0;
  justify-content: center;
  flex-wrap: wrap;
}

.tool-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all var(--transition-fast);
  position: relative;
  font-family: var(--font-family);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.tool-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.tool-btn.active {
  background: var(--accent-gold-light);
  color: var(--accent-gold-solid);
  box-shadow: 0 0 0 1px var(--accent-gold-solid) inset;
}

.tool-btn.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.tool-btn.disabled:hover {
  background: transparent;
  color: var(--text-secondary);
}

.tool-btn-danger:hover {
  background: rgba(231, 76, 60, 0.1);
  color: #e74c3c;
}

.tool-btn-action {
  color: var(--text-secondary);
}

.tool-btn-action:hover:not(.disabled) {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.tool-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  display: none;
}

@media (min-width: 640px) {
  .tool-label {
    display: inline;
  }
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border-grid);
  margin: 0 var(--space-xs);
  flex-shrink: 0;
}

.canvas-body {
  flex: 1;
  position: relative;
  overflow: hidden;
  touch-action: none;
  background: #FFFDF8;
}

#notes-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

/* ===================== NOTEPAD TEXTAREA ===================== */
/* Full-size textarea that aligns with ruled lines — like Windows Notepad */
.notepad-textarea {
  position: absolute;
  background: transparent;
  border: none;
  outline: none;
  color: #1B2A4A;
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 32px; /* matches RULED_LINE_SPACING */
  padding: 0;
  margin: 0;
  resize: none;
  overflow-y: auto;
  z-index: 10;
  caret-color: var(--accent-gold-solid);
  word-wrap: break-word;
  white-space: pre-wrap;
}

.notepad-textarea::placeholder {
  color: var(--text-tertiary);
  font-style: italic;
}

.notepad-textarea:focus {
  outline: none;
}

.notepad-textarea.hidden {
  display: none;
}

/* Scrollbar for notepad */
.notepad-textarea::-webkit-scrollbar {
  width: 4px;
}

.notepad-textarea::-webkit-scrollbar-track {
  background: transparent;
}

.notepad-textarea::-webkit-scrollbar-thumb {
  background: var(--border-grid);
  border-radius: 2px;
}

/* ===================== DELETE CONFIRMATION MODAL ===================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27, 42, 74, 0.7);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  animation: modalFadeIn 0.2s ease-out;
}

.modal-overlay.hidden {
  display: none;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(27, 42, 74, 0.06);
  padding: var(--space-xl) var(--space-2xl);
  max-width: 340px;
  width: 100%;
  text-align: center;
  animation: modalSlideUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(192, 57, 43, 0.08);
  margin-bottom: var(--space-md);
}

.modal-title {
  font-family: var(--font-family);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm) 0;
}

.modal-message {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0 0 var(--space-xl) 0;
}

.modal-actions {
  display: flex;
  gap: var(--space-sm);
}

.modal-btn {
  flex: 1;
  padding: 10px var(--space-md);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-btn-cancel {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border: 1px solid var(--border-grid);
}

.modal-btn-cancel:hover {
  background: var(--border-grid);
}

.modal-btn-danger {
  background: #C0392B;
  color: #fff;
}

.modal-btn-danger:hover {
  background: #A93226;
  transform: scale(1.02);
}

.modal-btn-danger:active {
  transform: scale(0.98);
}

/* ===================== LINE PICK HINT ===================== */
.line-pick-hint {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 16px;
  background: var(--bg-header);
  color: var(--text-header);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  z-index: 20;
  pointer-events: none;
  animation: hintAppear 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
}

.line-pick-hint svg {
  color: var(--accent-gold);
  flex-shrink: 0;
}

.line-pick-hint.hidden {
  display: none;
}

@keyframes hintAppear {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-8px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}