:root {
  --bottom-reserve: 0px;
  --radius-sm: 4px;
  --radius-md: 9px;
  --shadow-elevated: 0 14px 34px rgba(12, 20, 32, 0.18);
  --shadow-panel: 0 2px 8px rgba(8, 14, 22, 0.06);
}

:root[data-theme="default-dark"] {
  --color-page-bg: #161c25;
  --color-surface: #1d2531;
  --color-surface-elevated: #222c39;
  --color-border: #314052;
  --color-border-strong: #55739f;
  --color-text-primary: #e7edf6;
  --color-text-muted: #9aa9bd;
  --color-accent: #6aa5ff;
  --color-accent-contrast: #07192f;
  --color-selection-bg: #233754;
  --color-selection-border: #5c8fda;
  --color-current-row-bg: #1f2d42;
  --color-current-row-border: #6a87b5;
  --color-active-pane-border: #78adff;
  --color-button-bg: #283444;
  --color-button-hover: #314258;
  --color-button-secondary-bg: #202935;
  --color-list-header-bg: rgba(255, 255, 255, 0.02);
  --color-list-row-hover: rgba(106, 165, 255, 0.08);
  --color-danger: #ff8e8e;
  --color-danger-bg: #462328;
  --color-overlay-bg: rgba(8, 12, 18, 0.62);
}

:root[data-theme="default-light"] {
  --color-page-bg: #eef3f9;
  --color-surface: #ffffff;
  --color-surface-elevated: #f8fbff;
  --color-border: #d6e0ec;
  --color-border-strong: #7ca0d1;
  --color-text-primary: #172233;
  --color-text-muted: #617086;
  --color-accent: #235ec7;
  --color-accent-contrast: #ffffff;
  --color-selection-bg: #e5eefc;
  --color-selection-border: #7b9fdb;
  --color-current-row-bg: #f1f6ff;
  --color-current-row-border: #a2bce8;
  --color-active-pane-border: #235ec7;
  --color-button-bg: #f6f9fd;
  --color-button-hover: #edf3fb;
  --color-button-secondary-bg: #f3f6fb;
  --color-list-header-bg: #f8fbff;
  --color-list-row-hover: #f5f9ff;
  --color-danger: #b42323;
  --color-danger-bg: #fdecec;
  --color-overlay-bg: rgba(18, 28, 40, 0.30);
}

:root {
  --bg: var(--color-page-bg);
  --panel: var(--color-surface);
  --border: var(--color-border);
  --text: var(--color-text-primary);
  --muted: var(--color-text-muted);
  --error: var(--color-danger);
  --accent: var(--color-accent);
  --active-border: var(--color-active-pane-border);
  --active-bg: var(--color-surface);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  background: var(--color-page-bg);
  color: var(--color-text-primary);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#app-shell {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

#title-zone {
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03);
}

#title-zone-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

h1, h2, h3 {
  margin: 0;
}

h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 8px 12px;
  min-height: 0;
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-panel);
}

.pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}

.pane.active-pane {
  border-color: var(--color-active-pane-border);
  box-shadow: 0 0 0 1px var(--color-active-pane-border) inset, var(--shadow-panel);
  background: var(--color-surface);
}

.pane-header {
  flex: 0 0 auto;
  margin-bottom: 5px;
}

.pane-content {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  border-top: 1px solid var(--color-border);
  padding-top: 5px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 4px;
}

.compact-toolbar {
  margin-bottom: 2px;
}

.pane-topbar {
  justify-content: space-between;
}

.pane-title {
  min-width: 42px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.checkbox {
  color: var(--color-text-muted);
  font-size: 13px;
}

input, button, textarea {
  font: inherit;
  font-size: 13px;
}

input, textarea {
  padding: 5px 7px;
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

button {
  padding: 4px 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-button-bg);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, box-shadow 120ms ease;
}

button:hover {
  background: var(--color-button-hover);
  border-color: var(--color-accent);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset;
}

button:disabled {
  opacity: 0.56;
  cursor: not-allowed;
}

#theme-toggle {
  width: 30px;
  min-width: 30px;
  height: 30px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--color-button-secondary-bg);
}

#theme-toggle-icon {
  font-size: 14px;
  line-height: 1;
}

.pathline {
  color: var(--color-text-muted);
  margin-bottom: 3px;
  font-size: 12px;
}

.compact-line {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 4px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.breadcrumbs button {
  padding: 1px 4px;
  font-size: 12px;
  background: transparent;
  color: var(--color-text-muted);
}

.breadcrumbs button:hover {
  color: var(--color-accent);
  background: var(--color-button-secondary-bg);
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list-grid-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 88px 138px;
  gap: 6px;
  padding: 4px 6px 5px 6px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 3px;
  background: var(--color-list-header-bg);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.col-size,
.col-modified {
  text-align: right;
}

.list li {
  border-top: 1px solid var(--color-border);
  padding: 6px 6px 5px 6px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 88px 138px;
  gap: 6px;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: background 100ms ease, box-shadow 100ms ease;
}

.list li.selectable {
  cursor: pointer;
}

.list li.selectable:hover {
  background: var(--color-list-row-hover);
}

.entry-name {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.entry-media-slot {
  width: 28px;
  min-width: 28px;
  height: 28px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-button-secondary-bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.entry-media-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.entry-media-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.entry-media-svg {
  width: 18px;
  height: 18px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.entry-media-icon.folder {
  color: color-mix(in srgb, #d1a85e 72%, var(--color-text-muted));
}

.entry-media-icon.file {
  color: var(--color-text-muted);
}

.entry-media-icon.image {
  color: color-mix(in srgb, #62a58c 70%, var(--color-text-muted));
}

.entry-media-icon.video {
  color: color-mix(in srgb, #7f8ed1 70%, var(--color-text-muted));
}

.entry-media-icon.pdf {
  color: color-mix(in srgb, #d06b6b 70%, var(--color-text-muted));
}

.entry-media-icon.markdown,
.entry-media-icon.text,
.entry-media-icon.yaml,
.entry-media-icon.xml {
  color: color-mix(in srgb, #8ea0b8 82%, var(--color-text-muted));
}

.entry-media-icon.json,
.entry-media-icon.javascript,
.entry-media-icon.typescript,
.entry-media-icon.css,
.entry-media-icon.html,
.entry-media-icon.shell,
.entry-media-icon.python,
.entry-media-icon.docker {
  color: color-mix(in srgb, var(--color-accent) 60%, var(--color-text-muted));
}

.entry-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-option {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0 8px;
}

.settings-field {
  display: grid;
  gap: 6px;
  margin: 10px 0 6px;
}

.settings-field input {
  width: 100%;
}

.settings-actions {
  display: flex;
  margin-top: 8px;
}

.list li.is-selected {
  background: var(--color-selection-bg);
  box-shadow: inset 0 0 0 1px var(--color-selection-border);
}

.list li.is-current-row {
  box-shadow: inset 0 0 0 1px var(--color-current-row-border);
}

.list li.is-current-row:not(.is-selected) {
  background: var(--color-current-row-bg);
}

.list li.is-current-row.is-selected {
  background: var(--color-selection-bg);
  box-shadow:
    inset 0 0 0 1px var(--color-current-row-border),
    inset 3px 0 0 var(--color-active-pane-border);
}

.pane:not(.active-pane) .list li.is-selected {
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-selection-border) 60%, transparent);
}

.pane:not(.active-pane) .list li.is-current-row.is-selected {
  box-shadow:
    inset 0 0 0 1px var(--color-current-row-border),
    inset 2px 0 0 color-mix(in srgb, var(--color-active-pane-border) 55%, transparent);
}

.entry-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

.entry-name.entry-dir {
  font-weight: 600;
}

.dir-link {
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dir-link:hover {
  background: transparent;
}

.entry-size,
.entry-modified {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: right;
  white-space: nowrap;
}

.error {
  color: var(--color-danger);
  min-height: 12px;
  margin-bottom: 2px;
  font-size: 12px;
}

#status {
  color: var(--color-text-muted);
  font-size: 12px;
  min-width: 0;
  text-align: right;
  font-weight: 500;
  letter-spacing: -0.01em;
}

#footer-bar {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-elevated);
  padding: 5px 12px 4px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

#function-bar-meta {
  margin-bottom: 0;
  justify-content: center;
}

#function-bar {
  margin-bottom: 0;
  justify-content: center;
  gap: 5px;
  width: 100%;
  max-width: 760px;
}

#function-bar button {
  min-width: 72px;
  padding: 4px 9px;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  justify-content: center;
}

.shortcut-hint {
  color: var(--color-text-muted);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.popup-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.popup-overlay.hidden {
  display: none;
}

.hidden {
  display: none !important;
}

.popup-card {
  width: min(420px, calc(100vw - 24px));
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 11px;
  box-shadow: var(--shadow-elevated);
}

.popup-meta {
  color: var(--color-text-muted);
  font-size: 12px;
  margin: 4px 0 8px 0;
}

#editor-file-name {
  color: var(--color-text-primary);
  font-size: 13px;
  font-weight: 600;
  margin-top: 8px;
  margin-bottom: 2px;
}

#editor-file-path {
  margin-top: 0;
  margin-bottom: 8px;
}

.popup-label {
  font-size: 12px;
  color: var(--color-text-muted);
}

#wildcard-pattern-input,
#move-input {
  width: 100%;
  margin-top: 4px;
  margin-bottom: 6px;
}

#rename-popup .popup-card,
#move-popup .popup-card {
  width: min(520px, calc(100vw - 28px));
}

#rename-input {
  width: 100%;
  margin-top: 4px;
  margin-bottom: 6px;
  min-width: 0;
}

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

.viewer-card {
  position: relative;
  width: min(960px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
}

.editor-card {
  width: min(1180px, calc(100vw - 28px));
  max-height: calc(100vh - 24px);
}

.video-player {
  width: 100%;
  max-height: calc(100vh - 180px);
  background: #000;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.pdf-frame {
  width: 100%;
  height: calc(100vh - 180px);
  min-height: 420px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.search-card {
  width: min(680px, calc(100vw - 32px));
}

.info-card {
  width: min(620px, calc(100vw - 32px));
}

.info-grid {
  display: grid;
  grid-template-columns: minmax(110px, 150px) minmax(0, 1fr);
  gap: 10px 14px;
  margin-top: 12px;
}

.info-label {
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.info-value {
  color: var(--color-text);
  min-width: 0;
  overflow-wrap: anywhere;
}

.search-input {
  width: 100%;
}

.search-results {
  display: grid;
  gap: 8px;
  max-height: 320px;
  overflow: auto;
  margin-top: 10px;
}

.search-result {
  display: grid;
  gap: 2px;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-elevated);
}

.search-result:hover {
  border-color: var(--color-active-border);
}

.search-result-name {
  font-weight: 600;
  color: var(--color-text);
}

.search-result-path {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.search-result-meta {
  color: var(--color-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.settings-card {
  position: relative;
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100vh - 56px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.settings-tabs {
  display: flex;
  gap: 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-border);
}

.settings-tab {
  background: var(--color-button-secondary-bg);
}

.settings-tab.is-active {
  border-color: var(--color-accent);
  background: var(--color-button-hover);
}

.settings-panel {
  min-height: 180px;
}

.settings-placeholder-title {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.settings-log-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 46vh;
  overflow-y: auto;
  padding-right: 2px;
}

.settings-log-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 9px;
  background: var(--color-surface);
}

.settings-log-item.status-failed {
  border-color: var(--color-danger);
}

.settings-log-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}

.settings-log-path {
  font-size: 13px;
  margin-bottom: 4px;
  word-break: break-word;
}

.settings-log-meta {
  font-size: 12px;
  color: var(--color-text-muted);
}

.settings-log-error {
  margin-top: 5px;
  font-size: 12px;
  color: var(--color-danger);
}

.viewer-close {
  position: absolute;
  top: 10px;
  right: 10px;
  min-width: 32px;
  padding: 2px 8px;
}

.viewer-content,
.editor-host {
  margin: 6px 0 0 0;
  padding: 11px;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-primary);
  font: 12px/1.45 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.viewer-content {
  min-height: 240px;
  max-height: calc(100vh - 180px);
  white-space: pre-wrap;
  word-break: break-word;
  user-select: text;
}

.editor-host {
  margin-bottom: 8px;
  min-height: 520px;
  height: calc(100vh - 220px);
  width: 100%;
  overflow: hidden;
  padding: 0;
}

.editor-host .monaco-editor {
  border-radius: calc(var(--radius-sm) - 1px);
}

@media (max-width: 1200px) {
  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .list-grid-header,
  .list li {
    grid-template-columns: 14px minmax(0, 1fr) 70px 112px;
    gap: 4px;
  }
}