/* ============================================
   MA MÉMOIRE TRANQUILLE — Styles V4
   ============================================ */

:root {
  --bg-main: #FAF9F6;
  --bg-sidebar: #F8F4EC;
  --bg-editor: #FFFFFF;
  --bg-hover: rgba(0,0,0,0.035);
  --text-primary: #2C2A25;
  --text-secondary: #6B665C;
  --text-tertiary: #9E9789;
  --border: rgba(0,0,0,0.07);
  --border-strong: rgba(0,0,0,0.12);
  --danger: #C0392B;
  --danger-bg: rgba(192,57,43,0.08);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
  --sidebar-width: 280px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
}


/* ======== SIDEBAR ======== */

.sidebar {
  width: var(--sidebar-width);
  min-width: 200px;
  max-width: 500px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  user-select: none;
  position: relative;
  transition: width 0.01s;
}

.sidebar.collapsed {
  width: 0 !important;
  min-width: 0 !important;
  overflow: hidden;
  border-right: none;
}

.sidebar.collapsed * {
  visibility: hidden;
}

.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 19px;
  font-weight: 400;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.sidebar-header .subtitle {
  font-size: 11.5px;
  color: var(--text-tertiary);
  margin-top: 3px;
  letter-spacing: 0.2px;
}

.sidebar-search { padding: 12px 16px; }

.sidebar-search input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.6);
  font-family: inherit;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition);
}

.sidebar-search input:focus {
  border-color: var(--text-tertiary);
  background: rgba(255,255,255,0.9);
}

.sidebar-search input::placeholder { color: var(--text-tertiary); }

.tree-container {
  flex: 1;
  overflow-y: auto;
  padding: 6px 8px;
}


/* ======== RESIZE HANDLE ======== */

.resize-handle {
  position: absolute;
  right: -4px;
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: col-resize;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.resize-handle::after {
  content: '';
  width: 3px;
  height: 40px;
  border-radius: 3px;
  background: transparent;
  transition: background 0.2s;
}

.resize-handle:hover::after {
  background: rgba(0,0,0,0.15);
}

.resize-handle:active::after {
  background: rgba(0,0,0,0.25);
}

.sidebar-toggle {
  position: fixed;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 48px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-tertiary);
  z-index: 60;
  transition: all var(--transition);
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-toggle.show {
  display: flex;
}


/* ======== TREE ======== */

.tree-row {
  display: flex;
  align-items: center;
  padding: 5px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background var(--transition);
  gap: 4px;
  position: relative;
}

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

.tree-row[draggable="true"] { cursor: grab; }
.tree-row[draggable="true"]:active { cursor: grabbing; }

.tree-row.drop-above {
  box-shadow: 0 -2px 0 0 var(--text-secondary);
}

.tree-row.drop-below {
  box-shadow: 0 2px 0 0 var(--text-secondary);
}

.tree-toggle {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: var(--text-tertiary);
  flex-shrink: 0;
  border-radius: 4px;
  transition: all var(--transition);
}

.tree-toggle:hover { background: rgba(0,0,0,0.06); color: var(--text-primary); }
.tree-toggle.expanded { transform: rotate(90deg); }
.tree-toggle.hidden { visibility: hidden; }

.tree-emoji {
  font-size: 15px;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.tree-label {
  flex: 1;
  font-size: 14.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--transition);
}

.tree-row:hover .tree-actions { opacity: 1; }

.tree-action-btn {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.tree-action-btn:hover { background: rgba(0,0,0,0.06); color: var(--text-primary); }

.tree-children { display: none; }
.tree-children.expanded { display: block; }

.tree-row[data-depth="0"] { padding-left: 8px; }
.tree-row[data-depth="1"] { padding-left: 32px; }
.tree-row[data-depth="2"] { padding-left: 52px; }
.tree-row[data-depth="3"] { padding-left: 72px; }

.tree-row.is-category {
  margin-top: 4px;
}

.tree-container > .tree-item:first-child .tree-row.is-category { margin-top: 0; }


/* ======== SIDEBAR FOOTER ======== */

.sidebar-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-add-category {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 12px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-add-category:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
  background: rgba(255,255,255,0.4);
}

.sidebar-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-meta .status { font-size: 11px; color: var(--text-tertiary); }
.sidebar-meta .export-btns { display: flex; gap: 4px; }

.btn-sm {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  font-family: inherit;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-sm:hover { background: rgba(255,255,255,0.5); color: var(--text-primary); }


/* ======== EDITOR ======== */

.editor-area {
  flex: 1;
  background: var(--bg-editor);
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-width: 0;
}

.editor-toolbar {
  padding: 8px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.toolbar-group { display: flex; align-items: center; gap: 2px; }
.toolbar-separator { width: 1px; height: 24px; background: var(--border); margin: 0 8px; }

.toolbar-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

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

.toolbar-select {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  outline: none;
}

.editor-breadcrumb {
  padding: 12px 40px 0;
  font-size: 12px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.editor-breadcrumb span { cursor: pointer; transition: color var(--transition); }
.editor-breadcrumb span:hover { color: var(--text-primary); }
.editor-breadcrumb .sep { cursor: default; }
.editor-breadcrumb .sep:hover { color: var(--text-tertiary); }

.editor-title-input {
  padding: 16px 40px 8px;
  border: none;
  outline: none;
  font-family: 'DM Serif Display', serif;
  font-size: 28px;
  font-weight: 400;
  color: var(--text-primary);
  background: transparent;
  width: 100%;
  letter-spacing: -0.5px;
}

.editor-title-input::placeholder { color: var(--text-tertiary); }

.editor-content {
  flex: 1;
  padding: 12px 40px 40px;
  overflow-y: auto;
  outline: none;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-primary);
}

.editor-content:empty::before {
  content: 'Commence à écrire...';
  color: var(--text-tertiary);
}

.editor-content h1 { font-size: 24px; font-weight: 600; margin: 16px 0 8px; }
.editor-content h2 { font-size: 20px; font-weight: 600; margin: 14px 0 6px; }
.editor-content h3 { font-size: 17px; font-weight: 600; margin: 12px 0 4px; }
.editor-content p { margin-bottom: 8px; }
.editor-content ul, .editor-content ol { padding-left: 24px; margin-bottom: 8px; }
.editor-content li { margin-bottom: 4px; }
.editor-content table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 14px; }
.editor-content table td, .editor-content table th { border: 1px solid var(--border-strong); padding: 8px 12px; text-align: left; }
.editor-content table th { background: var(--bg-sidebar); font-weight: 500; }

.editor-meta {
  padding: 8px 40px 12px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  gap: 16px;
}


/* ======== WELCOME ======== */

.welcome-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-editor);
}

.welcome-content { text-align: center; max-width: 400px; padding: 40px; }
.welcome-content .logo { font-size: 48px; margin-bottom: 16px; }

.welcome-content h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 24px;
  font-weight: 400;
  margin-bottom: 8px;
}

.welcome-content p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }


/* ======== MODAL ======== */

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.25);
  display: none; align-items: center; justify-content: center;
  z-index: 100;
  backdrop-filter: blur(2px);
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--bg-editor);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 440px;
  max-width: 90vw;
  box-shadow: var(--shadow-md);
  max-height: 80vh;
  overflow-y: auto;
}

.modal h3 { font-size: 16px; font-weight: 500; margin-bottom: 16px; }
.modal-field { margin-bottom: 12px; }
.modal-field label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }

.modal-field input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 14px;
  outline: none;
}

.modal-field input:focus { border-color: var(--text-secondary); }

.color-picker-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }

.color-swatch {
  width: 28px; height: 28px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}

.color-swatch:hover { transform: scale(1.15); }
.color-swatch.selected { border-color: var(--text-primary); transform: scale(1.15); }

/* Emoji picker */
.emoji-grid-container {
  max-height: 280px;
  overflow-y: auto;
  padding: 4px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(0,0,0,0.015);
  margin-top: 6px;
}

.emoji-group-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-tertiary);
  padding: 8px 12px 4px;
  letter-spacing: 0.3px;
}

.emoji-grid-row {
  padding: 4px 12px;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  padding: 2px 8px 6px;
}

.emoji-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.emoji-btn:hover { background: rgba(0,0,0,0.06); transform: scale(1.15); }
.emoji-btn.selected { background: rgba(0,0,0,0.08); outline: 2px solid var(--text-primary); outline-offset: -2px; }

.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }

.btn { padding: 8px 16px; border: none; border-radius: var(--radius); font-family: inherit; font-size: 13px; cursor: pointer; transition: all var(--transition); }
.btn-primary { background: var(--text-primary); color: var(--bg-main); }
.btn-primary:hover { opacity: 0.85; }
.btn-secondary { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-hover); }


/* ======== CONFIRM POPUP ======== */

.confirm-popup {
  position: fixed;
  background: var(--bg-editor);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-md);
  z-index: 250;
  max-width: 300px;
  display: none;
}

.confirm-popup.show { display: block; }

.confirm-popup p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.confirm-popup .confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.confirm-popup .btn-cancel {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  font-family: inherit;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.confirm-popup .btn-cancel:hover { background: var(--bg-hover); }

.confirm-popup .btn-delete {
  padding: 6px 14px;
  border: none;
  border-radius: 6px;
  background: var(--danger);
  font-family: inherit;
  font-size: 12px;
  color: white;
  cursor: pointer;
  transition: all var(--transition);
}

.confirm-popup .btn-delete:hover { opacity: 0.85; }


/* ======== CONTEXT MENU ======== */

.context-menu {
  position: fixed;
  background: var(--bg-editor);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 4px;
  min-width: 180px;
  z-index: 200;
  display: none;
}

.context-menu.show { display: block; }

.context-menu-item {
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: background var(--transition);
}

.context-menu-item:hover { background: var(--bg-hover); }
.context-menu-item.danger { color: var(--danger); }
.context-menu-separator { height: 1px; background: var(--border); margin: 4px 8px; }


/* ======== TOAST ======== */

.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--text-primary); color: var(--bg-main);
  padding: 12px 20px; border-radius: var(--radius);
  font-size: 13px; box-shadow: var(--shadow-md);
  opacity: 0; transform: translateY(8px);
  transition: all 0.3s ease; z-index: 300;
}

.toast.show { opacity: 1; transform: translateY(0); }


/* ======== SCROLLBAR ======== */

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.10); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.18); }