/**
 * Purpose
 * Styles the standalone public download bundle generated by BITE.
 *
 * Responsibilities
 * - Provides the compact ELI public file tree, queue, and preview layout used by Cloudflare-hosted public pages.
 * - Is deployed once as a shared Cloudflare Pages asset bundle and referenced by generated publication pages.
 */

:root {
  color-scheme: light;
  --text: #17202a;
  --muted: #687482;
  --line: #d8dee6;
  --line-soft: #edf1f5;
  --panel: #ffffff;
  --panel-alt: #f7f9fb;
  --page: #f2f5f8;
  --accent: #fc6142;
  --accent-dark: #dc624a;
  --accent-deep: #f1592a;
  --accent-soft: #fff2ed;
  --dark: #2f3944;
  --success: #107c10;
  --warning: #8a6d00;
  --danger: #a4262c;
  --shadow: 0 10px 28px rgba(23, 32, 42, .08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--page);
  font: 14px/1.45 "Open Sans", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

button,
input {
  font: inherit;
}

button,
.button,
.panel-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 34px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  padding: 6px 12px;
  cursor: pointer;
  text-decoration: none;
  border-radius: 6px;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease, box-shadow 120ms ease;
}

button:hover,
.button:hover,
.panel-action:hover {
  background: var(--accent-dark);
}

button.secondary,
.button.secondary {
  background: #fff;
  border-color: #d9e1ea;
  color: #43566b;
}

.icon-button {
  width: 30px;
  min-width: 30px;
  min-height: 30px;
  padding: 0;
  border-color: transparent;
  background: transparent;
  color: #526274;
  border-radius: 6px;
}

.icon-button:hover {
  border-color: var(--line);
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.button-icon {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
}

button.compact {
  min-height: 28px;
  padding: 3px 9px;
  font-size: 12px;
}

button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.public-download-shell {
  width: min(1420px, calc(100vw - 40px));
  margin: 20px auto 28px;
}

.public-download-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.15;
  color: #111;
}

h2 {
  font-size: 16px;
}

.description {
  max-width: 760px;
  margin-top: 5px;
  color: var(--muted);
}

.dataset-title {
  margin-top: 7px;
  color: var(--dark);
  font-size: 17px;
  font-weight: 700;
}

.summary {
  min-width: 210px;
  text-align: right;
  color: var(--muted);
  font-weight: 600;
}

.public-download-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 360px) minmax(0, 1fr);
  gap: 12px;
  align-items: end;
  margin: 14px 0 16px;
}

.public-filter {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.public-filter input {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 6px 10px;
  text-transform: none;
  font-weight: 400;
}

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

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 380px);
  gap: 16px;
  align-items: start;
}

.content-grid.has-active-transfers {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 380px);
}

.file-panel,
.queue-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.public-side-rail {
  display: grid;
  gap: 16px;
  position: sticky;
  top: 16px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-alt);
}

.panel-heading-main {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.panel-heading-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
}

.panel-heading-meta,
.preview-meta,
.queue-status,
.queue-meta,
.file-meta,
.folder-meta {
  color: var(--muted);
  font-size: 12px;
}

.file-tree {
  padding: 4px 0;
}

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

.folder-node {
  border-top: 1px solid var(--line-soft);
}

.folder-node:first-child {
  border-top: 0;
}

.folder-row,
.file-row {
  display: grid;
  grid-template-columns: 24px 22px minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: center;
  min-height: 36px;
  padding: 4px 12px;
}

.folder-row {
  background: #fbfcfd;
  font-weight: 400;
}

.file-row {
  grid-template-columns: 24px 22px minmax(0, 1fr) auto auto;
}

.file-row:hover,
.folder-row:hover {
  background: var(--accent-soft);
}

.folder-toggle {
  width: 24px;
  min-width: 24px;
  min-height: 24px;
  border: 1px solid transparent;
  background: transparent;
  color: #696f76;
  padding: 0;
}

.folder-toggle:hover {
  border-color: var(--line);
  background: #fff;
}

.folder-children {
  margin-left: 22px;
  border-left: 1px solid #dfe5ec;
}

.folder-node[data-open="false"] > .folder-children {
  display: none;
}

.tree-limit-row {
  padding: 10px 12px 10px 54px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
  background: #fbfcfd;
}

.file-name,
.folder-name,
.path {
  min-width: 0;
  overflow-wrap: anywhere;
}

.file-name,
.folder-name {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.tree-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  color: #6b7887;
}

.folder-name .tree-icon {
  color: #c37a17;
}

.tree-icon .button-icon {
  width: 18px;
  height: 18px;
}

.file-meta,
.folder-meta {
  white-space: nowrap;
}

.row-actions {
  display: flex;
  gap: 3px;
}

.row-actions button {
  min-height: 28px;
}

.tree-empty {
  padding: 18px 12px;
  color: var(--muted);
}

.preview-empty,
.preview-error {
  color: var(--muted);
}

.preview-error {
  color: var(--danger);
}

.preview-image {
  display: block;
  max-width: 100%;
  max-height: 100%;
  height: auto;
  object-fit: contain;
  border: 1px solid var(--line-soft);
}

.preview-frame,
.preview-video,
.preview-audio {
  width: 100%;
  border: 1px solid var(--line-soft);
  background: #fff;
}

.preview-frame {
  height: 100%;
}

.preview-text {
  margin: 0;
  height: 100%;
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid var(--line-soft);
  background: #fbfcfe;
  border-radius: 7px;
  padding: 12px;
  font: 12px/1.55 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.preview-modal {
  width: min(1180px, calc(100vw - 32px));
  max-width: none;
  height: min(860px, calc(100vh - 32px));
  max-height: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  padding: 0;
  box-shadow: 0 16px 40px rgba(0, 0, 0, .22);
}

.preview-modal::backdrop {
  background: rgba(32, 33, 36, .55);
}

.preview-modal-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  height: 100%;
  max-height: none;
}

.preview-modal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-alt);
}

.preview-modal-heading h2 {
  max-width: min(760px, calc(100vw - 190px));
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-modal-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.preview-modal .preview-meta {
  margin-top: 3px;
}

.preview-navhint {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.preview-modal .preview-body {
  min-height: 0;
  overflow: hidden;
  display: grid;
  padding: 12px;
}

.preview-body-media,
.preview-body-empty {
  place-items: center;
}

.preview-body-frame {
  place-items: stretch;
}

.preview-body-audio {
  align-items: center;
}

.preview-body-text,
.preview-body-markdown,
.preview-body-table {
  align-items: stretch;
}

.public-preview-code-block[class*="language-"],
pre.public-preview-code-block[class*="language-"] {
  background: #fbfcfe;
  white-space: pre-wrap !important;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.public-preview-code-block code,
pre.public-preview-code-block[class*="language-"] code {
  font-size: 12px;
  line-height: 1.55;
  white-space: inherit !important;
}

.public-preview-markdown {
  display: grid;
  gap: 10px;
  min-height: 0;
  overflow: hidden;
  align-content: start;
  border: 1px solid var(--line-soft);
  border-radius: 7px;
  background: #fff;
  padding: 14px;
}

.public-preview-markdown > * {
  margin: 0;
}

.public-preview-markdown ul,
.public-preview-markdown ol {
  padding-left: 20px;
}

.public-preview-workbook {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
  min-height: 0;
}

.public-preview-sheet-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.public-preview-sheet-tab {
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid #d8e1eb;
  border-radius: 999px;
  background: #fff;
  color: #44566b;
  font-size: 12px;
  font-weight: 700;
}

.public-preview-sheet-tab.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.public-preview-sheet-panel {
  display: none;
  min-height: 0;
}

.public-preview-sheet-panel.is-active {
  display: block;
}

.csv-preview {
  display: grid;
  gap: 8px;
  min-height: 0;
}

.csv-preview-comments {
  display: grid;
  gap: 4px;
  padding: 9px 10px;
  border: 1px solid var(--line-soft);
  border-radius: 7px;
  background: #f7f9fb;
}

.csv-preview-comments-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.csv-preview-comments-body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font: 12px/1.55 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.csv-preview-table-wrap {
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 7px;
  background: #fff;
}

.csv-preview-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.csv-preview-table th,
.csv-preview-table td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 12px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.csv-preview-table th {
  background: #f1f5f9;
  color: #44566b;
  font-weight: 700;
}

.csv-preview-empty,
.csv-preview-note {
  color: var(--muted);
  font-size: 12px;
}

.queue-status {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
}

.queue-empty {
  padding: 14px 12px;
  color: var(--muted);
  font-size: 12px;
}

.queue-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line-soft);
}

.queue-tab {
  min-height: 34px;
  border: 0;
  border-right: 1px solid var(--line-soft);
  background: #f8fafc;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
}

.queue-tab:last-child {
  border-right: 0;
}

.queue-tab:hover,
.queue-tab.is-active {
  color: var(--accent-deep);
  background: #ffffff;
}

.queue-tab.is-active {
  box-shadow: inset 0 -2px 0 var(--accent-deep);
}

.queue-tab:focus-visible {
  position: relative;
  z-index: 1;
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.queue-tab-panel[hidden] {
  display: none;
}

.public-progress-block {
  display: grid;
  gap: 8px;
  padding: 12px 12px 10px;
  border-bottom: 1px solid var(--line-soft);
  background: #fbfcfd;
}

.download-progress-meta-strip {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.download-progress-shell {
  position: relative;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e4ebf3;
}

.download-progress-inflight,
.download-progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  transition: width .18s ease;
}

.download-progress-inflight {
  background: #ffd7c7;
}

.download-progress-fill {
  background: var(--accent-deep);
}

.public-download-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
}

.download-metric-card {
  display: grid;
  gap: 3px;
  min-height: 72px;
  padding: 9px 10px;
  border: 1px solid #e0e7ef;
  border-left: 3px solid #9aa9ba;
  border-radius: 7px;
  background: #ffffff;
}

.download-metric-label {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.download-metric-value {
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.15;
}

.download-metric-subtext,
.download-metric-meta-row {
  color: var(--muted);
  font-size: 12px;
}

.tone-downloaded {
  border-left-color: var(--accent-deep);
}

.tone-complete {
  border-left-color: var(--success);
}

.tone-partial {
  border-left-color: #8a6d00;
}

.queue-section {
  border-top: 1px solid var(--line-soft);
}

.queue-section-heading {
  padding: 8px 12px;
  background: #fbfcfd;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.tone-meta {
  grid-column: 1 / -1;
}

.download-metric-meta-list {
  display: grid;
  gap: 3px;
}

.download-metric-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.download-metric-meta-value {
  color: var(--text);
  font-weight: 700;
}

.download-active-transfer-block {
  display: grid;
  gap: 8px;
  padding: 10px 12px;
  background: #fffaf7;
}

.download-active-transfer-block[hidden] {
  display: none;
}

.download-active-transfer-list {
  display: grid;
  gap: 8px;
}

.download-active-transfer-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 8px;
}

.download-active-transfer-path {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-size: 12px;
}

.download-active-transfer-meta {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
}

.download-active-transfer-progress-shell {
  grid-column: 1 / -1;
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: #eadfd9;
}

.download-active-transfer-progress-bar {
  height: 100%;
  background: var(--accent-deep);
  transition: width .18s ease;
}

.queue-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line-soft);
}

.queue-list li:last-child {
  border-bottom: 0;
}

.queue-row-error .queue-meta {
  color: var(--danger);
}

.queue-row-complete .queue-meta {
  color: var(--success);
}

.queue-row-active .queue-meta {
  color: var(--accent-deep);
}

.queue-row-started .queue-meta {
  color: var(--warning);
}

@media (max-width: 900px) {
  .public-download-shell {
    width: min(100vw - 20px, 1240px);
    margin: 12px auto;
  }

  .public-download-header,
  .public-download-toolbar,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .summary {
    min-width: 0;
    text-align: left;
  }

  .toolbar-actions {
    justify-content: flex-start;
  }

  .public-side-rail {
    position: static;
  }

  .preview-modal {
    width: min(100vw - 14px, 1120px);
    height: calc(100vh - 14px);
  }

  .preview-modal-heading {
    align-items: flex-start;
  }

  .preview-modal-heading h2 {
    max-width: calc(100vw - 124px);
  }

  .preview-modal .preview-body {
    min-height: 0;
  }

  .public-download-metrics {
    grid-template-columns: 1fr;
  }

  .file-row {
    grid-template-columns: 26px 24px minmax(0, 1fr);
  }

  .file-row .file-meta,
  .file-row .row-actions {
    grid-column: 3;
  }
}