:root {
  --ember-red: #ff4500;
  --ember-orange: #ff6b35;
  --gold: #d4af37;
  --ink: #17130f;
  --panel: #1c1713;
  --panel-2: #241d18;
  --cream: #faf7f2;
  --line: #ece4d6;
  --muted: #9b8f7f;
  --surface: #ffffff;
  --editor-bg: var(--cream);
  --text: var(--ink);
}

body.dark-mode {
  --cream: #15120e;
  --line: #332a20;
  --muted: #9a8c78;
  --surface: #1e1812;
  --editor-bg: #15120e;
  --text: #ece4d6;
}

body.dark-mode #contentInput,
body.dark-mode #synopsisInput,
body.dark-mode .meta-row input,
body.dark-mode #statusSelect,
body.dark-mode #titleInput,
body.dark-mode button.secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--line);
}

body.dark-mode #wordCount,
body.dark-mode #saveStatus {
  color: var(--muted);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--cream);
  transition: background 0.2s ease, color 0.2s ease;
  overscroll-behavior-y: contain;
}

/* ---------- PROJECT SELECTOR ---------- */
#project-screen {
  min-height: 100vh;
  background: var(--ink);
}

.project-screen-inner {
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 3.5rem 2rem 5rem;
  text-align: center;
}

.brand-sub {
  font-family: 'Cinzel', serif;
  color: var(--muted);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin: 0 0 2.5rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
  text-align: left;
}

.project-card {
  background: var(--panel);
  border: 1px solid #33291f;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s ease;
}

.project-card:hover {
  border-color: var(--ember-orange);
  box-shadow: 0 0 30px rgba(255, 107, 53, 0.2);
  transform: translateY(-4px);
}

.project-card-banner {
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Cinzel', serif;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #f5f5f5;
  background: radial-gradient(circle at 30% 30%, #3a2410, #17130f 70%);
}

.project-card-body {
  padding: 1.2rem 1.4rem 1.5rem;
}

.project-card h3 {
  font-family: 'Cinzel', serif;
  color: var(--gold);
  font-size: 1.1rem;
  margin: 0 0 8px;
  letter-spacing: 0.03em;
}

.project-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.project-delete-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  flex-shrink: 0;
  line-height: 1;
}
.project-delete-btn:hover {
  color: #ff6b35;
  background: rgba(255,107,53,0.12);
}

.project-card p {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 10px;
  line-height: 1.5;
}

.project-card .open-label {
  display: inline-block;
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ember-orange);
}

.new-project-btn {
  background: transparent;
  border: 1px solid var(--ember-orange);
  color: var(--ember-orange);
  padding: 12px 26px;
  border-radius: 6px;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
}

.new-project-btn:hover {
  background: var(--ember-orange);
  color: var(--ink);
}

/* ---------- MAIN APP ---------- */
#app {
  display: flex;
  height: 100vh;
  height: 100dvh;
}

#sidebar {
  width: 290px;
  background: var(--panel);
  color: #e8ddd0;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  transition: width 0.2s ease, min-width 0.2s ease;
}

#sidebar.desktop-collapsed {
  width: 0;
  min-width: 0;
  border: none;
}

.sidebar-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.collapse-btn {
  background: var(--panel-2);
  border: 1px solid #33291f;
  color: #e8ddd0;
  width: 26px;
  height: 26px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  flex-shrink: 0;
}
.collapse-btn:hover { background: var(--ember-orange); border-color: var(--ember-orange); color: var(--ink); }

.expand-tab {
  display: none;
  position: fixed;
  top: 16px;
  left: 0;
  z-index: 30;
  width: 22px;
  height: 40px;
  border-radius: 0 6px 6px 0;
  border: 1px solid #33291f;
  border-left: none;
  background: var(--panel);
  color: #e8ddd0;
  cursor: pointer;
  font-size: 12px;
}
.expand-tab.visible { display: block; }
.expand-tab:hover { background: var(--ember-orange); color: var(--ink); }

.sidebar-header {
  padding: 18px 16px 14px;
  border-bottom: 1px solid #33291f;
}

.back-link {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  padding: 0 0 10px;
  font-family: 'Inter', sans-serif;
}
.back-link:hover { color: var(--ember-orange); }

.sidebar-header h1 {
  font-family: 'Cinzel', serif;
  font-size: 15px;
  margin: 0 0 12px 0;
  color: var(--gold);
  letter-spacing: 0.04em;
  font-weight: 600;
}

.editable-title {
  cursor: pointer;
  border-radius: 4px;
  padding: 2px 4px;
  margin-left: -4px !important;
}
.editable-title:hover {
  background: var(--panel-2);
  text-decoration: underline dotted var(--gold);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-box {
  background: var(--panel);
  border: 1px solid #33291f;
  border-radius: 10px;
  padding: 26px 28px;
  width: 100%;
  max-width: 520px;
}

.modal-box h2 {
  font-family: 'Cinzel', serif;
  color: var(--gold);
  font-size: 1.1rem;
  margin: 0 0 18px;
}

.modal-box label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
  margin-top: 14px;
}
.modal-box label:first-of-type { margin-top: 0; }

.modal-box input[type="text"],
.modal-box textarea {
  width: 100%;
  padding: 9px 12px;
  border-radius: 6px;
  border: 1px solid #33291f;
  background: #241d18;
  color: #e8ddd0;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
}

.modal-box textarea {
  min-height: 110px;
  resize: vertical;
}

.modal-box input:focus, .modal-box textarea:focus {
  outline: none;
  border-color: var(--ember-orange);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
}
.modal-actions button {
  padding: 8px 18px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}
.modal-actions .secondary {
  background: var(--panel-2);
  color: #e8ddd0;
  border: 1px solid #33291f;
}
.modal-actions .danger {
  color: var(--ink);
}

.categories-list {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 12px;
}

.category-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid #2a2219;
}

.category-row input[type="text"] {
  padding: 6px 8px;
  border-radius: 5px;
  border: 1px solid #33291f;
  background: #241d18;
  color: #e8ddd0;
  font-size: 13px;
}
.category-row .icon-input { width: 44px; text-align: center; }
.category-row .name-input { flex: 1; }

.category-row button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  padding: 4px 6px;
  border-radius: 4px;
}
.category-row .save-btn { color: var(--gold); }
.category-row .save-btn:hover { background: rgba(212,175,55,0.15); }
.category-row .delete-btn { color: #ff6b35; }
.category-row .delete-btn:hover { background: rgba(255,107,53,0.15); }

.add-category-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 10px;
  margin-top: 4px;
  border-top: 1px solid #33291f;
  flex-wrap: nowrap;
}
.add-category-row input[type="text"] {
  padding: 6px 8px;
  border-radius: 5px;
  border: 1px solid #33291f;
  background: #241d18;
  color: #e8ddd0;
  font-size: 13px;
  min-width: 0;
}
.add-category-row #newCategoryIcon { width: 38px; text-align: center; font-size: 17px; }
.add-category-row #newCategoryName { flex: 1 1 auto; min-width: 0; }
.folder-checkbox {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}
#addCategoryBtn {
  flex-shrink: 0;
  padding: 6px 10px;
  background: var(--ember-orange);
  border: none;
  color: var(--ink);
  border-radius: 5px;
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.add-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.add-buttons button {
  background: var(--panel-2);
  color: #e8ddd0;
  border: 1px solid #33291f;
  padding: 5px 9px;
  border-radius: 5px;
  font-size: 11.5px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.add-buttons button:hover {
  background: var(--ember-orange);
  border-color: var(--ember-orange);
  color: var(--ink);
}

#tree {
  flex: 1;
  overflow-y: auto;
  padding: 10px 8px;
  overscroll-behavior: contain;
}

.sidebar-footer {
  padding: 10px 16px 16px;
  border-top: 1px solid #33291f;
  flex-shrink: 0;
}
.sidebar-footer #darkModeToggle,
.sidebar-footer .export-link,
.sidebar-footer .logout-link {
  margin-top: 8px;
}
.sidebar-footer > *:first-child { margin-top: 0; }

.manage-categories-btn {
  width: 100%;
  margin-top: 8px;
  background: var(--panel-2);
  border: 1px solid #33291f;
  color: #e8ddd0;
  padding: 6px 9px;
  border-radius: 5px;
  font-size: 11.5px;
  cursor: pointer;
}
.manage-categories-btn:hover { border-color: var(--gold); color: var(--gold); }

.tree-row {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 9px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.12s ease;
}

.tree-row:hover { background: var(--panel-2); }

.tree-row.active {
  background: linear-gradient(135deg, var(--ember-red), var(--ember-orange));
  color: var(--ink);
  font-weight: 600;
}

.tree-row.drop-before { box-shadow: inset 0 2px 0 var(--gold); }
.tree-row.drop-after { box-shadow: inset 0 -2px 0 var(--gold); }

.tree-children {
  margin-left: 15px;
  border-left: 1px solid #33291f;
  padding-left: 7px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-todo { background: #e5484d; }
.status-draft { background: #f2a93b; }
.status-revised { background: #4e9dd9; }
.status-done { background: #5ec26a; }
.status-none { background: transparent; border: 1px solid var(--muted); }

.tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 12px;
  flex-shrink: 0;
  font-size: 9px;
  color: var(--muted);
  transition: transform 0.15s ease;
  cursor: pointer;
}
.tree-toggle.collapsed { transform: rotate(0deg); }
.tree-toggle:not(.collapsed) { transform: rotate(90deg); }
.tree-toggle-spacer { width: 12px; flex-shrink: 0; }

.icon-picker {
  position: fixed;
  z-index: 9999;
  background: var(--panel);
  border: 1px solid #33291f;
  border-radius: 10px;
  padding: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  width: 320px;
}
.icon-picker-label {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.icon-picker-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 2px;
  margin-bottom: 8px;
}
.icon-picker-grid button {
  background: var(--panel-2);
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 4px 2px;
  font-size: 20px;
  line-height: 1.2;
  cursor: pointer;
  transition: border-color 0.1s;
  aspect-ratio: 1;
}
.icon-picker-grid button:hover { border-color: var(--ember-orange); background: var(--panel); }
.icon-picker-clear {
  width: 100%;
  background: none;
  border: 1px solid #33291f;
  color: var(--muted);
  border-radius: 5px;
  padding: 5px;
  font-size: 11px;
  cursor: pointer;
}
.icon-picker-clear:hover { color: #c65c4e; border-color: #c65c4e; }

/* Editor */
#editor-area {
  flex: 1;
  overflow-y: auto;
  padding: 36px 48px;
  background: var(--editor-bg);
}

#empty-state {
  color: var(--muted);
  font-size: 14px;
  margin-top: 60px;
  text-align: center;
  padding: 0 20px;
}

.project-desc {
  max-width: 520px;
  margin: 0 auto 20px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  font-family: 'Cormorant Garamond', Georgia, serif;
  white-space: pre-wrap;
}

.empty-hint {
  color: var(--muted);
  font-size: 13px;
}

.editor-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

#titleInput {
  flex: 1;
  font-family: 'Cinzel', serif;
  font-size: 21px;
  font-weight: 600;
  border: none;
  background: transparent;
  padding: 4px;
  color: var(--text);
}
#titleInput:focus { outline: none; border-bottom: 2px solid var(--ember-orange); }

#statusSelect {
  padding: 6px 10px;
  border-radius: 5px;
  border: 1px solid var(--line);
  font-family: 'Inter', sans-serif;
  font-size: 12.5px;
  background: var(--surface);
  color: var(--text);
}

#saveStatus, #wordCount {
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
}

button.danger {
  background: #c65c4e;
  color: white;
  border: none;
  padding: 7px 14px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
}
button.danger:hover { background: #b3493d; }

button.secondary {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  margin-bottom: 16px;
  color: var(--text);
}
button.secondary:hover { border-color: var(--ember-orange); color: var(--ember-orange); }

#darkModeToggle {
  background: var(--panel-2);
  border: 1px solid #33291f;
  color: #e8ddd0;
  padding: 5px 9px;
  border-radius: 5px;
  font-size: 11.5px;
  cursor: pointer;
  margin-top: 8px;
  width: 100%;
}
#darkModeToggle:hover {
  background: var(--ember-orange);
  border-color: var(--ember-orange);
  color: var(--ink);
}

.logout-link {
  display: block;
  text-align: center;
  margin-top: 10px;
  font-size: 11px;
  color: var(--muted);
  text-decoration: none;
}
.logout-link:hover { color: var(--ember-orange); }

.export-link {
  display: block;
  text-align: center;
  margin-top: 10px;
  font-size: 11.5px;
  color: var(--gold);
  text-decoration: none;
  padding: 6px 0;
  border: 1px solid #33291f;
  border-radius: 5px;
}
.export-link:hover { border-color: var(--gold); background: var(--panel-2); }

#synopsisInput {
  width: 100%;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
  color: var(--muted);
  resize: none;
  overflow: hidden;
  margin-bottom: 16px;
  font-family: 'Inter', sans-serif;
  background: var(--surface);
}

#metaFields { margin-bottom: 10px; }

.meta-row {
  display: flex;
  gap: 8px;
  margin-bottom: 7px;
}

.meta-row input {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  background: var(--surface);
  color: var(--text);
}

.meta-row .meta-key { width: 150px; font-weight: 600; }
.meta-row .meta-value { flex: 1; }

.meta-row button {
  border: none;
  background: none;
  color: #c65c4e;
  cursor: pointer;
  font-size: 14px;
}

#contentInput {
  width: 100%;
  min-height: 52vh;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 26px 30px;
  font-size: 16.5px;
  line-height: 1.75;
  font-family: 'Calibri', 'Segoe UI', 'Inter', sans-serif;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
#contentInput:focus { outline: none; border-color: var(--ember-orange); }
#contentInput:empty:before {
  content: attr(data-placeholder);
  color: var(--muted);
  pointer-events: none;
}
#contentInput ul, #contentInput ol {
  margin: 0 0 0 1.4em;
  padding: 0;
}
#contentInput h1, #contentInput h2, #contentInput h3 {
  font-family: 'Cinzel', serif;
  color: var(--gold);
  margin: 0.6em 0 0.3em;
}
#contentInput h1 { font-size: 1.6em; }
#contentInput h2 { font-size: 1.35em; }
#contentInput h3 { font-size: 1.15em; }
#contentInput blockquote {
  border-left: 3px solid var(--ember-orange);
  margin: 0.6em 0;
  padding: 0.2em 0 0.2em 1em;
  color: var(--muted);
  font-style: italic;
}
#contentInput a { color: var(--ember-orange); }
#contentInput hr { border: none; border-top: 1px solid var(--line); margin: 1.2em 0; }

.format-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
body.dark-mode .format-toolbar { background: var(--surface); }

.format-toolbar button {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  min-width: 32px;
}
.format-toolbar button:hover,
.format-toolbar button.active {
  background: var(--ember-orange);
  border-color: var(--ember-orange);
  color: var(--ink);
}

#standardiseBtn {
  background: var(--panel);
  border-color: var(--gold);
  color: var(--gold);
}
#standardiseBtn:hover {
  background: var(--gold);
  color: var(--ink);
}

.meta-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.doc-tools { display: flex; gap: 6px; flex-wrap: wrap; }
.doc-tools button {
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
}

#pasteCleanBtn {
  background: var(--panel);
  border-color: #4e9dd9;
  color: #4e9dd9;
}
#pasteCleanBtn:hover {
  background: #4e9dd9;
  color: var(--ink);
}

#lineSpacingBtn {
  background: var(--panel);
  border-color: #4a8a88;
  color: #7ecfcc;
}
#lineSpacingBtn:hover {
  background: #4a8a88;
  border-color: #4a8a88;
  color: var(--ink);
}
#findReplaceBtn {
  background: var(--panel);
  border-color: #4a8a88;
  color: #7ecfcc;
}
#findReplaceBtn:hover, #findReplaceBtn.active {
  background: #4a8a88;
  border-color: #4a8a88;
  color: var(--ink);
}

.find-replace-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
}
.find-replace-row {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 7px;
}
.find-replace-row:last-child { margin-bottom: 0; flex-wrap: wrap; }
.find-replace-row input[type="text"] {
  flex: 1;
  min-width: 0;
  padding: 6px 9px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-family: 'Inter', sans-serif;
}
.find-replace-row button {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}
.find-replace-row button:hover { border-color: var(--ember-orange); color: var(--ember-orange); }
.find-option {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.find-count {
  font-size: 12px;
  color: var(--muted);
  margin-left: auto;
}
.close-find { border-color: transparent !important; color: var(--muted) !important; }
.close-find:hover { color: #c65c4e !important; }

#contentInput.compact-spacing p,
#contentInput.compact-spacing div {
  margin-top: 0 !important;
  margin-bottom: 2px !important;
  line-height: 1.5 !important;
}
#contentInput.compact-spacing br + br { display: none; }

.format-toolbar select {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 6px 8px;
  border-radius: 5px;
  font-size: 12px;
}

.color-picker-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 30px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  overflow: hidden;
}
.color-picker-wrap input[type="color"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  border: none;
  padding: 0;
}
.color-picker-wrap:hover { border-color: var(--ember-orange); }
.highlight-wrap { font-style: italic; }

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: var(--line);
  margin: 0 4px;
}

/* ---------- MOBILE ---------- */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 50;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid #33291f;
  background: var(--panel);
  color: #e8ddd0;
  font-size: 18px;
  cursor: pointer;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 40;
}
.sidebar-overlay.visible { display: block; }

@media (max-width: 768px) {
  .mobile-menu-toggle { display: block; }
  .collapse-btn, .expand-tab { display: none !important; }

  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    height: 100dvh;
    z-index: 45;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    width: 78vw;
    max-width: 300px;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  #sidebar.desktop-collapsed { width: 78vw; }
  #sidebar.sidebar-open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.4);
  }

  #editor-area {
    padding: 64px 18px 30px;
    width: 100%;
  }

  .editor-toolbar {
    flex-wrap: wrap;
    row-gap: 8px;
  }

  #titleInput { font-size: 18px; }

  #contentInput {
    padding: 16px;
    font-size: 16px;
    min-height: 50vh;
  }
}