/**
 * Purpose
 * Styles the standalone public download bundle generated by BITE.
 *
 * Responsibilities
 * - Provides the compact Metro-style file tree, queue, and preview layout used by Cloudflare-hosted public pages.
 * - Stays self-contained so generated bundles do not depend on internal BITE assets at runtime.
 */

:root {
  color-scheme: light;
  --text: #1f2937;
  --muted: #5f6b7a;
  --line: #c7d0da;
  --line-soft: #e1e7ee;
  --panel: #ffffff;
  --panel-alt: #f5f7fa;
  --page: #eef2f6;
  --accent: #0067b8;
  --accent-dark: #004f8f;
  --success: #107c10;
  --warning: #8a6d00;
  --danger: #a4262c;
}

* {
  box-sizing: border-box;
}

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

button,
input {
  font: inherit;
}

button,
.button,
.panel-action {
  min-height: 34px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  padding: 6px 12px;
  cursor: pointer;
  text-decoration: none;
}

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

button.secondary,
.button.secondary {
  background: #fff;
  color: var(--accent);
}

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

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

.public-download-shell {
  width: min(1240px, calc(100vw - 32px));
  margin: 24px auto;
}

.public-download-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--accent);
}

.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;
}

h2 {
  font-size: 16px;
}

.description {
  max-width: 760px;
  margin-top: 8px;
  color: var(--muted);
}

.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: 16px 0;
}

.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);
  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;
}

.file-panel,
.queue-panel,
.preview-panel {
  background: var(--panel);
  border: 1px solid var(--line);
}

.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 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-alt);
}

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

.file-tree {
  padding: 8px 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: 26px 24px minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: center;
  min-height: 38px;
  padding: 4px 12px;
}

.folder-row {
  background: #f9fbfd;
  font-weight: 700;
}

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

.file-row:hover,
.folder-row:hover {
  background: #eef6ff;
}

.folder-toggle {
  min-width: 24px;
  min-height: 24px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--accent);
  padding: 0;
}

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

.folder-children {
  margin-left: 20px;
  border-left: 1px solid #d6dee8;
}

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

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

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

.row-actions {
  display: flex;
  gap: 6px;
}

.row-actions button {
  min-height: 28px;
  padding: 3px 8px;
  background: #fff;
  color: var(--accent);
}

.row-actions button:hover {
  background: #eef6ff;
}

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

.preview-meta {
  min-height: 38px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
}

.preview-body {
  min-height: 220px;
  max-height: 420px;
  overflow: auto;
  padding: 12px;
}

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

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

.preview-image {
  display: block;
  max-width: 100%;
  height: auto;
  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: 360px;
}

.preview-text {
  margin: 0;
  max-height: 360px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid var(--line-soft);
  background: #fbfcfe;
  padding: 10px;
}

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

.queue-progress {
  height: 4px;
  background: #d9e5f2;
}

.queue-progress-fill {
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width .15s 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);
}

.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;
  }

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

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