/* ==========================================================================
   MBOX Viewer — tool styles on top of the shared Files Online design tokens
   (styles.css). Prefix: .mbx-
   ========================================================================== */

:root { --mbx-font-scale: 1; }

/* Components below set their own display:, which would override the hidden
   attribute — this companion rule keeps [hidden] authoritative everywhere. */
.mbx-page [hidden] { display: none !important; }

/* ─── Hero / dropzone ──────────────────────────────────────────────────── */

.mbx-hero .hero-inner { max-width: 860px; }

body.mbx-active .mbx-hero { display: none; }

.mbx-dropzone {
  margin: 32px auto 0;
  padding: 40px 24px;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.mbx-dropzone:hover,
.mbx-dropzone:focus-visible {
  border-color: var(--accent);
  background: var(--accent-light);
  outline: none;
}

.mbx-dropzone svg { margin: 0 auto 12px; color: var(--text-3); }
.mbx-dropzone-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.mbx-dropzone-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.mbx-dropzone-note { margin-top: 16px; font-size: 12px; color: var(--text-3); }

/* Full-page drag overlay */
.mbx-drop-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 12%, var(--bg) 70%);
  backdrop-filter: blur(2px);
  border: 3px dashed var(--accent);
  pointer-events: none;
}
.mbx-drop-overlay-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: 24px 40px; font-weight: 600; font-size: 16px;
}

/* ─── App toolbar ──────────────────────────────────────────────────────── */

.mbx-app { border-top: 1px solid var(--border); }

.mbx-toolbar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}

.mbx-toolbar-group { display: flex; align-items: center; gap: 4px; }
.mbx-toolbar-spacer { flex: 1; }

.mbx-archive-info { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.mbx-archive-name { font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 240px; }
.mbx-archive-stats { font-size: 11.5px; color: var(--text-3); white-space: nowrap; }
.mbx-parse-status { font-size: 11.5px; color: var(--accent); }

.mbx-search-wrap { position: relative; flex: 1 1 220px; max-width: 420px; }
.mbx-search {
  width: 100%; padding: 6px 10px 6px 30px;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: var(--bg); color: var(--text); font-size: 13px;
}
.mbx-search:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.mbx-search-icon { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); color: var(--text-3); pointer-events: none; }

.mbx-chips { display: flex; gap: 6px; flex-wrap: wrap; padding: 6px 16px; background: var(--surface); border-bottom: 1px solid var(--border); }
.mbx-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--accent-light); color: var(--accent);
  border-radius: 999px; padding: 2px 4px 2px 10px; font-size: 12px; font-family: var(--font-mono);
}
.mbx-chip button { color: inherit; font-size: 14px; line-height: 1; padding: 0 5px; border-radius: 50%; }
.mbx-chip button:hover { background: var(--accent-light-hover); }

/* Export dropdown */
.mbx-menu {
  position: absolute; top: calc(100% + 4px); right: 0; z-index: 60;
  min-width: 240px; padding: 6px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
}
.mbx-menu-label { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-3); padding: 6px 10px 2px; }
.mbx-menu button {
  display: block; width: 100%; text-align: left;
  padding: 6px 10px; font-size: 13px; color: var(--text);
  border-radius: var(--radius-sm);
}
.mbx-menu button:hover { background: var(--surface-hover); }
.mbx-menu hr { border: none; border-top: 1px solid var(--border); margin: 5px 0; }

/* ─── Three-pane layout ────────────────────────────────────────────────── */

.mbx-layout {
  display: grid;
  grid-template-columns: 220px minmax(280px, 420px) 1fr;
  height: calc(100vh - 105px);
  min-height: 480px;
  background: var(--bg);
}

body.mbx-sidebar-collapsed .mbx-layout { grid-template-columns: 0 minmax(280px, 420px) 1fr; }
body.mbx-sidebar-collapsed .mbx-sidebar { display: none; }

/* Sidebar */
.mbx-sidebar {
  overflow-y: auto; padding: 12px 8px;
  background: var(--surface); border-right: 1px solid var(--border);
}
.mbx-nav-group { margin-bottom: 16px; }
.mbx-nav-group-title {
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
  color: var(--text-3); padding: 0 10px 4px;
}
.mbx-nav-item {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  width: 100%; padding: 5px 10px; font-size: 13px; color: var(--text-2);
  border-radius: var(--radius-md); text-align: left;
}
.mbx-nav-item span:first-child { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mbx-nav-item:hover { background: var(--surface-hover); color: var(--text); }
.mbx-nav-item.active { background: var(--accent-light); color: var(--accent); font-weight: 600; }
.mbx-nav-count { font-size: 11.5px; color: var(--text-3); flex-shrink: 0; }
.mbx-nav-item.active .mbx-nav-count { color: var(--accent); }

/* ─── Message list ─────────────────────────────────────────────────────── */

.mbx-listpane {
  display: flex; flex-direction: column; min-width: 0;
  border-right: 1px solid var(--border); background: var(--surface);
  position: relative;
}

.mbx-list-header {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px; border-bottom: 1px solid var(--border);
  font-size: 12px; color: var(--text-3); flex-wrap: wrap;
}
.mbx-list-header select {
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  border-radius: var(--radius-sm); font-size: 12px; padding: 2px 4px;
}
.mbx-list-count { margin-right: auto; }

.mbx-list { flex: 1; overflow-y: auto; position: relative; }
.mbx-list-inner { position: relative; }

.mbx-row {
  position: absolute; left: 0; right: 0;
  display: flex; align-items: center; gap: 8px;
  padding: 0 10px; cursor: pointer;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.mbx-row:hover { background: var(--surface-hover); }
.mbx-row-active { background: var(--accent-light) !important; }
.mbx-row-selected { box-shadow: inset 3px 0 0 var(--accent); background: var(--surface-active); }
.mbx-row:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

.mbx-row-star { flex-shrink: 0; color: var(--text-3); font-size: 14px; padding: 4px; border-radius: var(--radius-sm); }
.mbx-row-star:hover { color: var(--warning); }
.mbx-row-star.starred { color: var(--warning); }

.mbx-row-main { flex: 1; min-width: 0; }
.mbx-row-top, .mbx-row-mid { display: flex; align-items: baseline; gap: 6px; }
.mbx-row-sender { font-size: 13px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
.mbx-unread .mbx-row-sender, .mbx-unread .mbx-row-subject { font-weight: 700; }
.mbx-unread::before {
  content: ''; position: absolute; left: 2px; top: 50%; transform: translateY(-50%);
  width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
}
.mbx-row-date { font-size: 11.5px; color: var(--text-3); flex-shrink: 0; }
.mbx-row-subject { font-size: 12.5px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
.mbx-row-att, .mbx-row-edited, .mbx-row-warn { font-size: 11px; flex-shrink: 0; }
.mbx-row-warn { color: var(--warning); }
.mbx-row-edited { color: var(--accent); }
.mbx-row-threadcount {
  font-size: 10.5px; background: var(--surface-active); color: var(--text-3);
  border-radius: 999px; padding: 0 6px;
}
.mbx-row-preview { font-size: 11.5px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mbx-row mark, .mbx-viewer mark { background: var(--warning-light); color: inherit; border-radius: 2px; }

.mbx-list-empty { padding: 48px 24px; text-align: center; color: var(--text-3); font-size: 13px; }

/* Parse progress */
.mbx-progress {
  position: absolute; inset: 0; z-index: 20;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(2px); padding: 24px; text-align: center;
}
.mbx-progress-track { width: min(320px, 80%); height: 6px; background: var(--surface-active); border-radius: 999px; overflow: hidden; }
.mbx-progress-bar { height: 100%; width: 0; background: var(--accent); border-radius: 999px; transition: width 200ms ease; }
.mbx-progress-label { font-size: 12.5px; color: var(--text-2); }

/* ─── Viewer ───────────────────────────────────────────────────────────── */

.mbx-viewer { display: flex; flex-direction: column; min-width: 0; overflow-y: auto; background: var(--bg); }
.mbx-viewer-empty { flex: 1; display: grid; place-items: center; color: var(--text-3); font-size: 13px; padding: 24px; text-align: center; }

.mbx-viewer-content { display: flex; flex-direction: column; min-height: 100%; }

.mbx-viewer-head { padding: 16px 20px 0; }
.mbx-viewer-subject { font-size: calc(17px * var(--mbx-font-scale)); font-weight: 700; line-height: 1.35; }
.mbx-viewer-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.mbx-badge-warn { color: var(--warning); border-color: var(--warning); }

.mbx-viewer-meta { margin-top: 10px; font-size: 12.5px; color: var(--text-2); display: grid; gap: 2px; }
.mbx-meta-label { display: inline-block; width: 44px; color: var(--text-3); }
.mbx-addr { color: var(--text); }
.mbx-mid { font-size: 11px; color: var(--text-3); word-break: break-all; }

.mbx-viewer-actions {
  display: flex; gap: 4px; flex-wrap: wrap;
  padding: 10px 20px; border-bottom: 1px solid var(--border);
}

.mbx-thread-info {
  margin: 10px 20px 0; padding: 8px; font-size: 12px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
}
.mbx-thread-label { display: block; color: var(--text-3); font-size: 11px; margin-bottom: 4px; }
.mbx-thread-item {
  display: flex; justify-content: space-between; width: 100%;
  padding: 3px 8px; font-size: 12px; color: var(--text-2); border-radius: var(--radius-sm);
}
.mbx-thread-item:hover { background: var(--surface-hover); }
.mbx-thread-item.active { background: var(--accent-light); color: var(--accent); }
.mbx-thread-date { color: var(--text-3); }

/* Tabs */
.mbx-tabs { display: flex; gap: 2px; padding: 8px 20px 0; }
.mbx-tabs [data-tab] {
  padding: 5px 12px; font-size: 12.5px; color: var(--text-2);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border: 1px solid transparent; border-bottom: none;
}
.mbx-tabs [data-tab]:hover { color: var(--text); background: var(--surface-hover); }
.mbx-tabs [data-tab].active {
  color: var(--text); background: var(--surface);
  border-color: var(--border); font-weight: 600;
}

.mbx-body {
  flex: 1; margin: 0 20px 16px; min-height: 300px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  overflow: hidden; display: flex; flex-direction: column;
}

.mbx-body-frame { flex: 1; width: 100%; min-height: 320px; border: none; background: var(--surface); }

.mbx-remote-banner {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 12px; font-size: 12px;
  background: var(--warning-light); color: var(--text-2);
  border-bottom: 1px solid var(--border);
}

.mbx-body-text, .mbx-body-headers, .mbx-body-raw { padding: 16px; overflow: auto; font-size: calc(13px * var(--mbx-font-scale)); }
.mbx-body-raw { font-family: var(--font-mono); font-size: 12px; white-space: pre-wrap; word-break: break-all; color: var(--text-2); }
.mbx-plainwrap pre, .mbx-textblock { white-space: pre-wrap; font-family: inherit; line-height: 1.6; overflow-wrap: anywhere; }
.mbx-quote { margin: 6px 0; }
.mbx-quote summary { cursor: pointer; color: var(--text-3); font-size: 12px; user-select: none; }
.mbx-quote pre { border-left: 3px solid var(--border-strong); padding-left: 12px; color: var(--text-2); margin-top: 4px; }

.mbx-headers-table { font-size: 12px; }
.mbx-headers-table th {
  text-align: left; vertical-align: top; padding: 3px 12px 3px 0;
  color: var(--text-3); font-weight: 600; white-space: nowrap; font-family: var(--font-mono);
}
.mbx-headers-table td { padding: 3px 0; word-break: break-all; font-family: var(--font-mono); color: var(--text-2); }

/* Editor */
.mbx-body-edit { padding: 16px; overflow: auto; display: flex; flex-direction: column; gap: 10px; }
.mbx-edit-warning {
  font-size: 12px; padding: 8px 12px; border-radius: var(--radius-md);
  background: var(--warning-light); color: var(--text-2);
}
.mbx-edit-grid { display: grid; grid-template-columns: 70px 1fr; gap: 6px 10px; align-items: center; font-size: 13px; }
.mbx-edit-grid label { color: var(--text-3); font-size: 12px; text-align: right; }
.mbx-edit-grid input, .mbx-body-edit textarea {
  width: 100%; padding: 6px 8px; font-size: 13px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--text);
}
.mbx-body-edit textarea { font-family: var(--font-mono); min-height: 140px; resize: vertical; }
.mbx-edit-bodylabel { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-3); margin-top: 4px; }
.mbx-edit-rich {
  display: none; min-height: 140px; padding: 10px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); font-size: 13px; overflow: auto;
}
body.mbx-edit-richmode .mbx-edit-rich { display: block; }
body.mbx-edit-richmode #mbx-edit-html { display: none; }
.mbx-edit-actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.mbx-edit-dirty { color: var(--warning); font-size: 12px; font-weight: 600; }

/* Attachments */
.mbx-attachments { margin: 0 20px 16px; }
.mbx-attachments-title { font-size: 12px; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.mbx-att {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; margin-bottom: 4px; font-size: 12.5px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
}
.mbx-att-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mbx-att-meta { color: var(--text-3); font-size: 11.5px; margin-right: auto; white-space: nowrap; }

/* Note */
.mbx-note-wrap { margin: 0 20px 24px; }
.mbx-note-wrap textarea {
  width: 100%; min-height: 52px; padding: 8px 10px; font-size: 12.5px;
  border: 1px dashed var(--border-strong); border-radius: var(--radius-md);
  background: var(--surface); color: var(--text); resize: vertical;
}

/* Context menu */
.mbx-context-menu {
  position: fixed; z-index: 200; min-width: 200px; padding: 6px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
}
.mbx-context-menu button {
  display: block; width: 100%; text-align: left;
  padding: 6px 10px; font-size: 13px; color: var(--text); border-radius: var(--radius-sm);
}
.mbx-context-menu button:hover { background: var(--surface-hover); }

/* Report / settings modal bits */
.mbx-report-file { font-weight: 600; margin-bottom: 10px; }
.mbx-report-row { display: flex; justify-content: space-between; padding: 5px 0; font-size: 13px; border-bottom: 1px solid var(--border); }
.mbx-report-warn strong { color: var(--warning); }
.mbx-settings-h { font-size: 13px; font-weight: 700; margin: 14px 0 6px; }
.mbx-settings-h:first-child { margin-top: 0; }
.mbx-settings-row {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 7px 0; font-size: 13px; border-bottom: 1px solid var(--border);
}

/* SEO prose reuse */
.mbx-prose { max-width: 720px; margin: 0 auto; font-size: 14.5px; color: var(--text-2); }
.mbx-prose p + p { margin-top: 10px; }

/* ─── Responsive ───────────────────────────────────────────────────────── */

@media (max-width: 980px) {
  .mbx-layout { grid-template-columns: 0 minmax(240px, 340px) 1fr; }
  .mbx-sidebar { display: none; }
  body.mbx-sidebar-collapsed .mbx-layout { grid-template-columns: 220px minmax(240px, 320px) 1fr; }
  body.mbx-sidebar-collapsed .mbx-sidebar { display: block; }
}

@media (max-width: 720px) {
  .mbx-layout { display: block; height: auto; }
  .mbx-listpane { height: 45vh; border-right: none; border-bottom: 1px solid var(--border); }
  .mbx-viewer { height: auto; min-height: 50vh; }
  .mbx-archive-info { display: none; }
  .mbx-viewer-head, .mbx-viewer-actions { padding-left: 12px; padding-right: 12px; }
  .mbx-body, .mbx-attachments, .mbx-note-wrap, .mbx-thread-info { margin-left: 12px; margin-right: 12px; }
  .mbx-tabs { padding-left: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .mbx-progress-bar, .mbx-dropzone { transition: none; }
}