/* ============ Theme variables (default: dark) ============ */
:root {
  --brand: #80036d;          /* Memento Core logo color */
  --brand-text: #d65cc4;     /* readable brand tint for text on dark */
  --bg-primary: #1e1e2e;
  --bg-secondary: #181825;
  --bg-tertiary: #11111b;
  --bg-hover: #2a2a3d;
  --bg-active: #313145;
  --border: #2e2e44;
  --text-normal: #cdd6f4;
  --text-muted: #7f849c;
  --text-faint: #585b70;
  --accent: #d65cc4;
  --accent-hover: #e684d8;
  --tag-color: #4ade80;
  --ghost-color: #6c7086;
  --link-color: #89b4fa;
  --danger: #f38ba8;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --cm-bg: var(--bg-primary);
}

html, body { font-family: var(--font-ui); color: var(--text-normal); }
.app-bg { background: var(--bg-primary); }
.muted { color: var(--text-muted); }
kbd { background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 11px; font-family: var(--font-mono); }

/* ============ Chrome ============ */
.topbar { background: var(--bg-tertiary); border-bottom: 1px solid var(--border); }
.sidebar { background: var(--bg-secondary); border-right: 1px solid var(--border); }
.sidebar-header { border-bottom: 1px solid var(--border); }
.status-bar { border-top: 1px solid var(--border); color: var(--text-muted); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 6px; color: var(--text-muted);
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text-normal); }

.vault-select, .search-input {
  background: var(--bg-primary); border: 1px solid var(--border); color: var(--text-normal); outline: none;
}
.search-input:focus, .vault-select:focus { border-color: var(--accent); }

.mode-toggle { border: 1px solid var(--border); }
.mode-btn { padding: 3px 10px; color: var(--text-muted); background: var(--bg-secondary); }
.mode-btn:hover { color: var(--text-normal); }
.mode-btn.active { background: var(--accent); color: var(--bg-tertiary); font-weight: 600; }

.btn-accent { background: var(--accent); color: var(--bg-tertiary); font-weight: 600; }
.btn-accent:hover { background: var(--accent-hover); }

/* ============ File tree ============ */
.tree-item { display: flex; align-items: center; gap: 5px; padding: 2px 6px; border-radius: 5px; cursor: pointer; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tree-item:hover { background: var(--bg-hover); color: var(--text-normal); }
.tree-item.active { background: var(--bg-active); color: var(--accent); }
.tree-item .chevron { font-size: 11px; width: 12px; text-align: center; flex-shrink: 0; }
.tree-children { margin-left: 14px; border-left: 1px solid var(--border); padding-left: 4px; }
.tree-item.folder { color: var(--text-normal); font-weight: 500; }

/* ============ Note header ============ */
.note-title-input { color: var(--text-normal); }
.note-header { border-bottom: 1px solid transparent; }

/* ============ CodeMirror ============ */
.CodeMirror {
  height: 100%; background: var(--cm-bg); color: var(--text-normal);
  font-family: var(--font-mono); font-size: 15px; line-height: 1.7; padding: 8px 16px;
}
.CodeMirror-cursor { border-left: 2px solid var(--accent); }
.CodeMirror-selected { background: var(--bg-active) !important; }
.CodeMirror-gutters { background: var(--cm-bg); border: none; }
.cm-s-default .cm-header { color: var(--accent); }
.cm-s-default .cm-link, .cm-s-default .cm-url { color: var(--link-color); }
.cm-s-default .cm-comment { color: var(--text-faint); }
.cm-s-default .cm-quote { color: var(--tag-color); }
.cm-s-default .cm-strong { color: #fab387; }
.cm-s-default .cm-em { color: #f9e2af; }
.CodeMirror.drag-over { outline: 2px dashed var(--accent); outline-offset: -4px; }

.pane-divider { width: 1px; background: var(--border); }

/* ============ Markdown preview ============ */
.markdown-body { line-height: 1.7; font-size: 16px; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 { font-weight: 600; margin: 1.2em 0 .5em; color: var(--text-normal); }
.markdown-body h1 { font-size: 1.7em; } .markdown-body h2 { font-size: 1.4em; } .markdown-body h3 { font-size: 1.2em; }
.markdown-body p { margin: .6em 0; }
.markdown-body a { color: var(--link-color); text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }
.markdown-body ul, .markdown-body ol { padding-left: 1.5em; margin: .5em 0; }
.markdown-body ul { list-style: disc; } .markdown-body ol { list-style: decimal; }
.markdown-body code { background: var(--bg-tertiary); border-radius: 4px; padding: 2px 5px; font-family: var(--font-mono); font-size: .85em; }
.markdown-body pre { background: var(--bg-tertiary); border-radius: 8px; padding: 12px 16px; overflow-x: auto; margin: .8em 0; }
.markdown-body pre code { background: none; padding: 0; }
.markdown-body blockquote { border-left: 3px solid var(--accent); padding-left: 1em; color: var(--text-muted); margin: .8em 0; }
.markdown-body img { max-width: 100%; border-radius: 8px; margin: .5em 0; }
.markdown-body table { border-collapse: collapse; margin: .8em 0; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 6px 12px; }
.markdown-body hr { border: none; border-top: 1px solid var(--border); margin: 1.5em 0; }
.markdown-body input[type=checkbox] { accent-color: var(--accent); margin-right: 6px; }

/* ============ Syntax highlighting ============ */
/* preview (highlight.js) — colors keyed to theme variables where sensible */
.markdown-body pre code.hljs { background: transparent; padding: 0; display: block; }
.hljs-comment, .hljs-quote { color: var(--code-comment, #6c7086); font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-template-tag, .hljs-section { color: var(--code-keyword, #d65cc4); }
.hljs-string, .hljs-regexp, .hljs-addition { color: var(--code-string, #a6e3a1); }
.hljs-number, .hljs-literal, .hljs-symbol, .hljs-bullet { color: var(--code-number, #fab387); }
.hljs-title, .hljs-title.function_, .hljs-title.class_, .hljs-name { color: var(--code-title, #89b4fa); }
.hljs-attr, .hljs-attribute, .hljs-selector-attr, .hljs-selector-class, .hljs-selector-id, .hljs-variable, .hljs-template-variable { color: var(--code-attr, #f9e2af); }
.hljs-built_in, .hljs-type, .hljs-class { color: var(--code-builtin, #94e2d5); }
.hljs-meta, .hljs-meta .hljs-keyword, .hljs-doctag { color: var(--code-meta, #f38ba8); }
.hljs-deletion { color: #f38ba8; }
.hljs-operator, .hljs-punctuation { color: var(--text-muted); }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 600; }

/* editor (CodeMirror modes inside fenced code blocks) */
.cm-s-default .cm-keyword { color: var(--code-keyword, #d65cc4); }
.cm-s-default .cm-string, .cm-s-default .cm-string-2 { color: var(--code-string, #a6e3a1); }
.cm-s-default .cm-number { color: var(--code-number, #fab387); }
.cm-s-default .cm-atom { color: var(--code-number, #fab387); }
.cm-s-default .cm-def { color: var(--code-title, #89b4fa); }
.cm-s-default .cm-variable-2 { color: var(--code-attr, #f9e2af); }
.cm-s-default .cm-variable-3, .cm-s-default .cm-type { color: var(--code-builtin, #94e2d5); }
.cm-s-default .cm-property { color: var(--code-title, #89b4fa); }
.cm-s-default .cm-operator { color: var(--text-muted); }
.cm-s-default .cm-meta { color: var(--code-meta, #f38ba8); }
.cm-s-default .cm-builtin { color: var(--code-builtin, #94e2d5); }
.cm-s-default .cm-tag { color: var(--code-keyword, #d65cc4); }
.cm-s-default .cm-attribute { color: var(--code-attr, #f9e2af); }
.cm-s-default .cm-qualifier { color: var(--code-builtin, #94e2d5); }
.cm-s-default .cm-bracket { color: var(--text-muted); }
.cm-s-default .cm-error { color: var(--danger); background: transparent; }

.wikilink { color: var(--accent); cursor: pointer; }
.wikilink:hover { color: var(--accent-hover); text-decoration: underline; }
.wikilink.unresolved { color: var(--ghost-color); }
.tag-chip {
  display: inline-block; background: color-mix(in srgb, var(--tag-color) 15%, transparent);
  color: var(--tag-color); border-radius: 999px; padding: 1px 9px; font-size: .85em; cursor: pointer;
}
.tag-chip:hover { background: color-mix(in srgb, var(--tag-color) 28%, transparent); }

/* ============ Graph ============ */
.graph-bg { background: var(--bg-tertiary); }
.legend i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 4px; }
#graph-svg text { fill: var(--text-muted); font-size: 11px; font-family: var(--font-ui); pointer-events: none; }
#graph-svg .glink { stroke: var(--border); stroke-opacity: .8; }
#graph-svg .glink.tag-link { stroke: color-mix(in srgb, var(--tag-color) 35%, transparent); stroke-dasharray: 3 3; }
#graph-svg circle { cursor: pointer; }
#graph-svg .dimmed { opacity: .15; }

/* ============ Modal / context menu / misc ============ */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; padding: 22px; max-height: 80vh; overflow-y: auto; }
.ctx-menu { position: fixed; z-index: 60; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; padding: 4px; min-width: 140px; box-shadow: 0 8px 30px rgba(0,0,0,.4); }
.ctx-menu button { display: block; width: 100%; text-align: left; padding: 5px 10px; border-radius: 5px; font-size: 13px; color: var(--text-normal); }
.ctx-menu button:hover { background: var(--bg-hover); }
.ctx-menu button.danger { color: var(--danger); }

/* viewers get a read-only UI (server enforces regardless) */
.role-viewer #btn-new-note, .role-viewer #btn-new-folder, .role-viewer #btn-upload { display: none; }
.role-viewer .block-handle { display: none; }

/* ============ Block containers (rearrangeable preview) ============ */
.block-container { position: relative; padding: 2px 6px 2px 26px; margin: 2px -6px 2px -26px; border-radius: 8px; border: 1px solid transparent; }
.block-container:hover { background: color-mix(in srgb, var(--bg-hover) 55%, transparent); }
.block-container.selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, transparent); }
.block-handle {
  position: absolute; left: 4px; top: 6px; cursor: grab; color: var(--text-faint);
  opacity: 0; user-select: none; font-size: 13px; line-height: 1; padding: 3px 2px; border-radius: 4px;
}
.block-handle:hover { color: var(--text-normal); background: var(--bg-active); }
.block-container:hover .block-handle, .block-container.selected .block-handle { opacity: 1; }
.block-handle:active { cursor: grabbing; }
.dragging-blocks .block-container.selected { opacity: .5; }
.drop-indicator { height: 2px; background: var(--accent); border-radius: 1px; margin: 2px 0; pointer-events: none; }
.block-body > :first-child { margin-top: 0; }
.block-body > :last-child { margin-bottom: 0; }

/* block handles in the editor gutter (split + fullsize edit) */
.CodeMirror-gutters { width: auto; }
.block-gutter { width: 20px; }
.cm-block-handle {
  cursor: grab; color: var(--text-faint); font-size: 12px; line-height: 1.4;
  padding: 0 3px; opacity: .3; user-select: none; border-radius: 4px;
}
.cm-block-handle:hover { opacity: 1; color: var(--text-normal); background: var(--bg-active); }
.cm-block-handle:active { cursor: grabbing; }
.role-viewer .cm-block-handle { display: none; }
.cm-block-selected { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.cm-drop-indicator {
  position: absolute; height: 2px; width: 100%; background: var(--accent);
  z-index: 7; pointer-events: none; border-radius: 1px;
}

/* ============ Remote collaborator cursors ============ */
/* absolutely positioned by editor.js; width = bar, height = full line height */
.remote-cursor {
  position: absolute; width: 2px; background: var(--rc, var(--accent));
  z-index: 6; pointer-events: none;
}
.rc-flag {
  position: absolute; left: -1px; bottom: 100%;
  background: var(--rc, var(--accent)); color: #fff;
  font-size: 10px; font-weight: 600; line-height: 1; padding: 2px 6px;
  border-radius: 4px 4px 4px 0; white-space: nowrap; font-family: var(--font-ui);
  pointer-events: none;
}

.presence-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--tag-color); display: inline-block; }
.toast { position: fixed; bottom: 18px; right: 18px; background: var(--bg-secondary); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 8px; padding: 10px 16px; font-size: 13px; z-index: 70; animation: toast-in .2s ease; }
@keyframes toast-in { from { transform: translateY(10px); opacity: 0; } }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--bg-active); border-radius: 6px; }
::-webkit-scrollbar-track { background: transparent; }
.search-result { padding: 4px 8px; border-radius: 5px; cursor: pointer; }
.search-result:hover { background: var(--bg-hover); }
.search-result .snippet { color: var(--text-faint); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============ Sidebar resize handle ============ */
.sidebar-resizer {
  width: 4px; flex-shrink: 0; cursor: col-resize; background: transparent; transition: background .15s; position: relative; z-index: 5;
}
.sidebar-resizer:hover, .sidebar-resizer.dragging { background: var(--accent); }

/* ============ Formatting ribbon ============ */
.ribbon {
  display: flex; align-items: center; gap: 2px; padding: 3px 8px;
  border-bottom: 1px solid var(--border); background: var(--bg-secondary); flex-shrink: 0;
}
.ribbon-btn {
  display: inline-flex; align-items: center; gap: 3px; padding: 3px 7px;
  border-radius: 5px; font-size: 12px; color: var(--text-muted); white-space: nowrap; line-height: 1.4;
}
.ribbon-btn:hover { background: var(--bg-hover); color: var(--text-normal); }
.ribbon-sep { width: 1px; height: 16px; background: var(--border); margin: 0 3px; flex-shrink: 0; }

/* ============ Link picker ============ */
.link-picker-item {
  padding: 5px 8px; border-radius: 5px; cursor: pointer; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.link-picker-item:hover { background: var(--bg-hover); color: var(--text-normal); }