:root {
  --win-bg: #f3f3f3;
  --win-card: #ffffff;
  --win-border: #e2e2e2;
  --win-text: #1a1a1a;
  --win-text-secondary: #5f5f5f;
  --win-accent: #0067c0;
  --win-accent-hover: #005ba1;
  --win-accent-light: #e5f1fb;
  --win-danger: #c42b1c;
  --win-radius: 8px;
  --win-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  /* Default base size - overridden per-account via an inline <style> in
     app-header.ejs/simple-header.ejs. Every font-size below is in rem, so
     changing this one value scales the whole app proportionally. */
  font-size: 14px;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--win-bg);
  color: var(--win-text);
  font-family: 'Segoe UI Variable', 'Segoe UI', system-ui, -apple-system, sans-serif;
}
body {
  font-size: 1rem;
}

a {
  color: var(--win-accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

button,
.btn {
  -webkit-appearance: none;
  appearance: none;
  font-family: inherit;
  font-size: 1rem;
  background: var(--win-card);
  color: var(--win-text);
  border: 1px solid var(--win-border);
  border-radius: var(--win-radius);
  padding: 7px 14px;
  cursor: pointer;
  transition: background 0.1s ease;
}
button:hover,
.btn:hover {
  background: #f5f5f5;
  text-decoration: none;
}
button.primary,
.btn.primary {
  background: var(--win-accent);
  border-color: var(--win-accent);
  color: #ffffff;
}
button.primary:hover,
.btn.primary:hover {
  background: var(--win-accent-hover);
}
button.danger {
  color: var(--win-danger);
  border-color: var(--win-danger);
  background: #fdf3f2;
}
button.link {
  border: none;
  background: none;
  padding: 2px 4px;
  color: var(--win-accent);
}
button.link:hover {
  text-decoration: underline;
}

input[type='text'],
input[type='password'],
input[type='number'],
textarea,
select {
  font-family: inherit;
  font-size: 1rem;
  background: var(--win-card);
  border: 1px solid var(--win-border);
  border-radius: var(--win-radius);
  padding: 8px 10px;
  color: var(--win-text);
  width: 100%;
}
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--win-accent);
  outline-offset: -1px;
}

.card {
  background: var(--win-card);
  border: 1px solid var(--win-border);
  border-radius: var(--win-radius);
  box-shadow: var(--win-shadow);
  padding: 20px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--win-card);
  border-bottom: 1px solid var(--win-border);
}
.topbar .brand {
  font-weight: 600;
  font-size: 1.143rem;
  color: var(--win-text);
}
.topbar .spacer {
  flex: 1;
}
.topbar form {
  margin: 0;
}
.topbar .search-form {
  flex: 1 1 140px;
  min-width: 80px;
}
.topbar .search-box {
  width: 100%;
}
.sidebar-toggle {
  font-size: 1.143rem;
  line-height: 1;
  padding: 6px 10px;
}

.layout {
  display: flex;
  min-height: calc(100vh - 49px);
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--win-card);
  border-right: 1px solid var(--win-border);
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.sidebar h4 {
  font-size: 0.786rem;
  text-transform: uppercase;
  color: var(--win-text-secondary);
  margin: 16px 0 6px;
  letter-spacing: 0.04em;
}
.sidebar h4:first-child {
  margin-top: 0;
}
.sidebar a.nav-link {
  display: block;
  padding: 6px 8px;
  border-radius: var(--win-radius);
  color: var(--win-text);
}
.sidebar a.nav-link:hover {
  background: var(--win-accent-light);
  text-decoration: none;
}

#sidebar-resize-handle {
  width: 5px;
  flex-shrink: 0;
  cursor: col-resize;
  background: var(--win-border);
}
#sidebar-resize-handle:hover,
#sidebar-resize-handle.dragging {
  background: var(--win-accent);
}

body.sidebar-collapsed .sidebar,
body.sidebar-collapsed #sidebar-resize-handle {
  display: none;
}

.tree {
  list-style: none;
  margin: 0;
  padding-left: 0;
}
.tree ul {
  list-style: none;
  padding-left: 14px;
}
.tree li {
  margin: 1px 0;
}
.tree .folder-name {
  color: var(--win-text-secondary);
  padding: 4px 6px;
  display: block;
  font-weight: 600;
  border-radius: var(--win-radius);
  cursor: pointer;
  user-select: none;
}
.tree .folder-name:hover {
  background: var(--win-accent-light);
}
.tree .folder-name::before {
  content: '▾';
  display: inline-block;
  width: 14px;
  font-size: 0.714rem;
  color: var(--win-text-secondary);
}
.tree-folder.collapsed > .folder-name::before {
  content: '▸';
}
.tree-folder.collapsed > ul {
  display: none;
}
.tree a {
  padding: 4px 6px;
  /* folder names get a 14px collapse-triangle spacer (.folder-name::before)
     before their text - match it here so file names line up at the same depth */
  padding-left: 20px;
  display: block;
  border-radius: var(--win-radius);
  color: var(--win-text);
}
.tree a:hover {
  background: var(--win-accent-light);
  text-decoration: none;
}

.main {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

.center-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  width: 340px;
}
.login-card h1 {
  font-size: 1.429rem;
  margin: 0 0 20px;
}
.field {
  margin-bottom: 14px;
}
.field label {
  display: block;
  margin-bottom: 4px;
  color: var(--win-text-secondary);
  font-size: 0.857rem;
}

.message {
  background: var(--win-accent-light);
  border: 1px solid #bcdcf5;
  border-radius: var(--win-radius);
  padding: 10px 14px;
  margin-bottom: 16px;
}
.error {
  background: #fdf3f2;
  border: 1px solid #f1c3bd;
  color: var(--win-danger);
  border-radius: var(--win-radius);
  padding: 10px 14px;
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--win-card);
  border-radius: var(--win-radius);
  overflow: hidden;
}
th,
td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--win-border);
}
th {
  background: #fafafa;
  font-size: 0.857rem;
  text-transform: uppercase;
  color: var(--win-text-secondary);
}
.row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.786rem;
  font-weight: 600;
}
.badge.admin {
  background: #e5f1fb;
  color: var(--win-accent);
}
.badge.user {
  background: #eee;
  color: var(--win-text-secondary);
}

.note-title {
  font-size: 1.857rem;
  margin: 0 0 4px;
}
.note-meta {
  color: var(--win-text-secondary);
  font-size: 0.857rem;
  margin-bottom: 20px;
}
.tags-inline a {
  display: inline-block;
  background: var(--win-accent-light);
  color: var(--win-accent);
  border-radius: 999px;
  padding: 2px 10px;
  margin: 0 6px 6px 0;
  font-size: 0.857rem;
}
.note-body {
  line-height: 1.6;
}
.note-body pre {
  background: #f5f5f5;
  padding: 12px;
  border-radius: var(--win-radius);
  overflow-x: auto;
}
.note-body code {
  background: #f5f5f5;
  padding: 1px 5px;
  border-radius: 4px;
}

.backlinks {
  margin-top: 30px;
  padding-top: 16px;
  border-top: 1px solid var(--win-border);
}

textarea.editor {
  width: 100%;
  min-height: 420px;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.929rem;
  line-height: 1.5;
  resize: vertical;
}

.task-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 4px;
  border-bottom: 1px solid var(--win-border);
}
.task-row form {
  margin: 0;
}
.task-row .task-source {
  color: var(--win-text-secondary);
  font-size: 0.857rem;
  margin-left: auto;
}

.search-results .result {
  padding: 12px 0;
  border-bottom: 1px solid var(--win-border);
}
.snippet {
  color: var(--win-text-secondary);
  font-size: 0.929rem;
}

.dialog {
  border: none;
  border-radius: var(--win-radius);
  box-shadow: var(--win-shadow);
  padding: 0;
  width: 360px;
}
.dialog::backdrop {
  background: rgba(0, 0, 0, 0.25);
}
.dialog .dialog-body {
  padding: 20px;
}
.dialog h3 {
  margin-top: 0;
}
.dialog .field {
  margin-bottom: 12px;
}
.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.context-menu {
  position: fixed;
  z-index: 1000;
  background: var(--win-card);
  border: 1px solid var(--win-border);
  border-radius: var(--win-radius);
  box-shadow: var(--win-shadow);
  padding: 4px;
  display: flex;
  flex-direction: column;
  min-width: 120px;
}
.context-menu button {
  border: none;
  background: none;
  text-align: left;
  padding: 6px 10px;
  border-radius: 4px;
}
.context-menu button:hover {
  background: var(--win-accent-light);
}
.context-menu[hidden] {
  display: none;
}

.tree li.drag-over > .folder-name,
#notes-root.drag-over {
  background: var(--win-accent-light);
  outline: 1px dashed var(--win-accent);
  border-radius: var(--win-radius);
}
#notes-root {
  flex: 1;
  min-height: 150px;
}
.tree li[draggable="true"] {
  cursor: grab;
}
.folder-name .rename-input {
  font: inherit;
  font-weight: 600;
  border: 1px solid var(--win-accent);
  border-radius: 4px;
  padding: 0 4px;
  width: 130px;
}

.empty-state {
  color: var(--win-text-secondary);
  padding: 40px 0;
  text-align: center;
}