:root {
  --bg: #08101d;
  --panel: rgba(15, 23, 41, 0.78);
  --panel-strong: rgba(19, 30, 50, 0.92);
  --panel-border: rgba(126, 157, 255, 0.2);
  --text: #eef4ff;
  --muted: #9ba9c9;
  --accent: #69e2c3;
  --accent-strong: #5eb8ff;
  --danger: #ff8a8a;
  --shadow: 0 24px 48px rgba(3, 8, 21, 0.48);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --mono: "IBM Plex Mono", "Cascadia Code", "Consolas", monospace;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
  scrollbar-width: thin;
  scrollbar-color: rgba(94, 184, 255, 0.45) rgba(255, 255, 255, 0.05);
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
}

*::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(105, 226, 195, 0.5), rgba(94, 184, 255, 0.48));
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(105, 226, 195, 0.72), rgba(94, 184, 255, 0.7));
  background-clip: padding-box;
}

html,
body {
  margin: 0;
  height: 100%;
  min-height: 100%;
}

body {
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(94, 184, 255, 0.18), transparent 25%),
    radial-gradient(circle at bottom right, rgba(105, 226, 195, 0.15), transparent 30%),
    linear-gradient(160deg, #07101c 0%, #0f1729 44%, #080d16 100%);
  overflow: hidden;
  min-height: 100dvh;
}

body.sidebar-collapsed .app-shell {
  grid-template-columns: 92px minmax(0, 1fr);
}

body.stack-collapsed .content-grid {
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
}

body.ai-collapsed .content-grid {
  grid-template-columns: minmax(280px, 330px) minmax(0, 1fr);
}

body.stack-collapsed.ai-collapsed .content-grid {
  grid-template-columns: minmax(0, 1fr);
}

body.stack-collapsed .notes-panel,
body.ai-collapsed .assistant-panel {
  display: none;
}

body.sidebar-collapsed .brand-copy,
body.sidebar-collapsed .sidebar-section:not(:first-of-type),
body.sidebar-collapsed .view-list,
body.sidebar-collapsed .filter-list,
body.sidebar-collapsed .tag-grid,
body.sidebar-collapsed .sidebar-tip,
body.sidebar-collapsed .sidebar-heading .sidebar-count,
body.sidebar-collapsed .sidebar-label {
  display: none;
}

body.sidebar-collapsed #new-note-button {
  width: 52px;
  min-height: 52px;
  padding: 0;
  margin-inline: auto;
  border-radius: 18px;
}

body.sidebar-collapsed #new-note-button .button-label {
  display: none;
}

body.sidebar-collapsed .sidebar-heading {
  justify-content: center;
}

body.sidebar-collapsed .sidebar {
  padding-inline: 0;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  height: 100dvh;
  min-height: 100dvh;
  transition: grid-template-columns 180ms ease;
}

.sidebar {
  min-height: 0;
  padding: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(8, 14, 27, 0.94), rgba(6, 11, 21, 0.9));
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.sidebar-scroll {
  height: 100%;
  min-height: 0;
  overflow-y: auto;
  padding: 24px 20px 28px;
}

body.sidebar-collapsed .sidebar-scroll {
  padding-inline: 18px;
}

.workspace {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  padding: 24px;
  overflow: hidden;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(94, 184, 255, 0.96), rgba(105, 226, 195, 0.88));
  color: #08111f;
  font-family: var(--mono);
  font-weight: 700;
  box-shadow: var(--shadow);
}

.brand h1,
.panel-header h2,
.auth-card h1 {
  margin: 0;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.primary-button,
.ghost-button,
.danger-button,
.mode-button,
.mini-control,
.view-button,
.filter-button,
.tag-chip,
.note-card,
.command-result,
.context-menu button {
  border: 1px solid transparent;
  transition: 160ms ease;
}

.primary-button,
.ghost-button,
.danger-button,
.mode-button,
.mini-control,
.view-button,
.filter-button,
.tag-chip,
.note-card,
.command-result,
.context-menu button {
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.primary-button {
  width: 100%;
  padding: 12px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #06111d;
  font-weight: 700;
  box-shadow: 0 10px 26px rgba(94, 184, 255, 0.22);
}

.icon-primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 1.3rem;
  line-height: 1;
}

.button-label {
  display: inline-block;
}

.ghost-button,
.danger-button,
.mode-button,
.mini-control,
.view-button,
.filter-button,
.tag-chip {
  padding: 10px 14px;
  border-color: rgba(255, 255, 255, 0.08);
}

.ghost-button:hover,
.mode-button:hover,
.mini-control:hover,
.view-button:hover,
.filter-button:hover,
.tag-chip:hover,
.ghost-button.active,
.note-card:hover,
.command-result:hover,
.context-menu button:hover {
  border-color: rgba(105, 226, 195, 0.34);
  background: rgba(105, 226, 195, 0.08);
}

.compact-button,
.mini-control {
  border-radius: 999px;
  white-space: nowrap;
}

.icon-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  flex: 0 0 auto;
}

.icon-chevron {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
}

.icon-chevron-left {
  transform: rotate(225deg);
  margin-left: 4px;
}

.icon-chevron-right {
  transform: rotate(45deg);
  margin-right: 4px;
}

.danger-button {
  color: #ffd6d6;
  border-color: rgba(255, 138, 138, 0.24);
}

.sidebar-section {
  margin-top: 22px;
  min-width: 0;
}

.sidebar-heading,
.output-heading,
.command-header,
.panel-header-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.sidebar-label,
.output-heading span {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.sidebar-count,
.pill {
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.77rem;
}

.view-list,
.filter-list,
.tag-grid,
.notes-list,
.related-list,
.command-results {
  display: grid;
  gap: 10px;
}

.tag-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.view-button.active,
.filter-button.active,
.tag-chip.active,
.mode-button.active {
  background: rgba(94, 184, 255, 0.13);
  border-color: rgba(94, 184, 255, 0.3);
}

.sidebar-tip {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.sidebar-tip p {
  margin: 8px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.topbar-left,
.topbar-actions,
.search-wrap,
.toolbar-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-left {
  flex: 1;
  min-width: 0;
}

.search-wrap {
  flex: 1;
  min-width: 0;
}

.search-input,
.select-input,
.field input,
.field textarea,
#note-content {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  background: rgba(8, 13, 24, 0.62);
  color: var(--text);
}

.search-input,
.select-input,
.field input {
  min-height: 46px;
  padding: 12px 14px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(280px, 330px) minmax(0, 1fr) minmax(300px, 380px);
  flex: 1 1 auto;
  gap: 18px;
  min-height: 0;
  height: 0;
  align-items: stretch;
}

.content-grid > * {
  min-width: 0;
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 18px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.notes-panel {
  overflow: hidden;
}

.editor-panel {
  overflow: hidden;
}

.assistant-panel {
  overflow-x: hidden;
  overflow-y: auto;
  padding-right: 12px;
}

.assistant-panel .panel-header,
.assistant-panel .assistant-mode-grid,
.assistant-panel .field,
.assistant-panel .primary-button,
.assistant-panel .output-heading {
  flex: 0 0 auto;
}

.assistant-panel .assistant-output {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 0 0 auto;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.notes-list,
.response-box,
.preview-pane,
.related-list {
  overflow: auto;
}

.notes-list {
  flex: 1 1 0;
  height: 0;
  min-height: 0;
  padding-right: 4px;
  overflow-y: scroll;
}

.note-card,
.command-result,
.context-menu button {
  width: 100%;
  text-align: left;
  padding: 14px;
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.06);
}

.note-card.active {
  border-color: rgba(105, 226, 195, 0.32);
  background: rgba(105, 226, 195, 0.09);
}

.note-card-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.note-card h3,
.command-result h3 {
  margin: 0;
  font-size: 1rem;
}

.note-card p,
.command-result p,
.meta-copy,
.placeholder-copy,
.response-box p,
.response-box li,
.preview-pane p,
.preview-pane li,
.auth-copy {
  color: var(--muted);
  line-height: 1.6;
}

.note-card p,
.command-result p {
  margin: 0 0 10px;
  font-size: 0.93rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-pill {
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.74rem;
}

.editor-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.assistant-output,
.field-stretch {
  margin-top: 16px;
}

.assistant-input,
#note-content {
  resize: none;
  min-height: 140px;
  padding: 14px 16px;
  font-family: var(--mono);
  line-height: 1.65;
}

.editor-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 16px 0;
}

.editor-body {
  display: flex;
  flex: 1 1 0;
  height: 0;
  min-height: 0;
  overflow: hidden;
}

#note-content,
.preview-pane {
  display: block;
  flex: 1;
  width: 100%;
  height: 100%;
  max-height: 100%;
  min-height: 0;
  overflow-y: scroll;
}

.preview-pane,
.response-box {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  background: rgba(8, 13, 24, 0.52);
  padding: 16px;
}

.preview-pane {
  overflow-y: auto;
  overflow-x: auto;
  max-width: 100%;
}

.preview-pane p,
.preview-pane li,
.response-box p,
.response-box li,
.note-card p,
.command-result p {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.preview-pane pre,
.response-box pre {
  overflow: auto;
  padding: 14px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.28);
}

.preview-pane code,
.response-box code,
.output-model {
  font-family: var(--mono);
}

.assistant-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.response-box {
  min-height: 220px;
  max-height: min(36vh, 320px);
  flex: 0 0 auto;
  height: auto;
  overflow-y: auto;
}

.related-list {
  max-height: 180px;
  overflow-y: auto;
}

.status-text {
  color: var(--muted);
  font-size: 0.85rem;
}

.auth-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 50;
  padding: 24px;
  background: rgba(4, 8, 16, 0.68);
  backdrop-filter: blur(18px);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 55;
  padding: 24px;
  background: rgba(4, 8, 16, 0.72);
  backdrop-filter: blur(18px);
}

.modal-card {
  width: min(460px, 100%);
  padding: 24px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(16, 25, 43, 0.98), rgba(10, 16, 30, 0.97));
  box-shadow: var(--shadow);
}

.modal-card h2 {
  margin: 0 0 12px;
}

.modal-message {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 22px;
}

.modal-confirm {
  width: auto;
  min-width: 120px;
}

.auth-card {
  width: min(440px, 100%);
  padding: 24px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(7, 12, 22, 0.96);
  box-shadow: var(--shadow);
}

.remember-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 18px;
  color: var(--muted);
}

.auth-error {
  min-height: 20px;
  color: #ffb1b1;
  margin: 14px 0 0;
}

.command-palette {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: start center;
  padding-top: 90px;
  z-index: 40;
  background: rgba(4, 8, 16, 0.64);
  backdrop-filter: blur(14px);
}

.command-card {
  width: min(720px, calc(100vw - 32px));
  padding: 18px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 12, 20, 0.94);
  box-shadow: var(--shadow);
}

.command-results {
  margin-top: 14px;
  max-height: 420px;
  overflow-y: auto;
}

.context-menu {
  position: fixed;
  z-index: 45;
  width: 220px;
  padding: 8px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 12, 20, 0.96);
  box-shadow: var(--shadow);
}

.context-menu button + button {
  margin-top: 6px;
}

.empty-state {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

@media (max-width: 1120px) {
  .content-grid,
  body.stack-collapsed .content-grid,
  body.ai-collapsed .content-grid,
  body.stack-collapsed.ai-collapsed .content-grid {
    grid-template-columns: 1fr;
  }

  .notes-panel,
  .assistant-panel {
    display: flex !important;
  }

  body {
    overflow: auto;
  }

  .workspace {
    overflow: visible;
  }
}

@media (max-width: 900px) {
  body,
  .workspace,
  .sidebar,
  .sidebar-scroll {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .topbar,
  .editor-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar-left {
    flex-wrap: wrap;
  }

  .editor-meta-grid,
  .assistant-mode-grid,
  .tag-grid {
    grid-template-columns: 1fr;
  }
}